Content Catalogue/Toyo... · Introduction of Toyo-Mulching System® Toyo-Mulching System® (TMS) is...

Content

1. Introduction of Toyo-Mulching System®

2. Particular Preambles for Standard Method of

Measurement

3. Particular Specification for Toyo-Mulching System®

4. Typical Section Detail

5. Job Reference and Photos

Introduction of Toyo-Mulching System® Toyo-Mulching System® (TMS) is an innovative vegetation system that can support evergreen vegetation on non-soil slope surface (i.e. shotcrete or bed rock) or on soil slope surface. Toyo Greenland Co., Ltd. first introduced the organic hydromulching technique to Hong Kong in 1998. After its first application in March 1999 in the trial panel on the campus of the Chinese University of Hong Kong, 72 slopes with about 300,000 m2 were applied with the TMS. In two studies conducted by the Geotchnical Engineering Office of the Civil Engineering Department and by the Campus Development Office in Chinese University of Hong Kong, they found that the TMS has delivered satisfactory engineering and vegetation performances. In December 2000, the largest TMS project was completed for the Hospital Authority on the slopes beneath the Princess Margaret Hospital in Kwai Chung. This project was granted the “2002 Outstanding Greening Award” by Leisure and Cultural Services Department, HKSAR, “Excellent in Technology 2003” by International Erosion Control Association, USA and “2004 Best Landscaped Slope Award” by Civil Engineering Department of HKSAR. The TMS can provide such outstanding greening performances because the concepts of geo-synthetic, bioengineering and horticulture are integrated in its design: • The application of geo-synthetic mat is used to secure the planting medium on the steep

slopes and to prevent water erosion of the medium during and after adverse weathers. For the past six years, there have been 4 times of Black Rainstorm Warning Signal (with over 100mm rainfall per day) and 11 times of Storm of Gale Signals with No. 8 or above in Hong Kong. Even after these adverse weather conditions, the engineering materials of the Eco-Green System can still sustain on the steep non-soil slopes.

• The organic mulch material named Fiber Soil can effectively retain moisture and provide nutrients to enhance roots development, which further improves bioengineering strength of the Fiber Soil.

To compare with sand, clay or mud that is commonly used for other mulching systems, the Fiber Soil has much a higher percentage of organic matter (49.43%). It is a mixture of peat moss, organic compost, seeds, soil binder and water. The Fiber Soil is light in weight in order to minimize the surcharge load to the existing slope. In the mature stage of the TMS, Fiber Soil will be continuously decomposed to humus, which provides many functions to sustain health vegetation covers.

• Selecting suitable plants will help reducing maintenance and providing full vegetation covers

throughout the years. Beside, a healthy vegetation cover can minimize sunlight evaporation of the Fiber Soil; therefore, the maintenance cost will be minimized.

In recent years, Toyo was awarded many projects that were on the slopes of the highways, residential developments, and water catchments. Amongst those completed projects, the slopes

were steep in gradient, had limited working space for the storage of heavy machinery and the narrow access road, or maintenance is difficult to be carried out in future. Nevertheless, the work process of the TMS is simple, the materials are not easy to be washed out, and the full establishment of the selected plant species is the criteria for the selection of vegetation system from the client. Hence the TMS is widely adopted along the slopes of the different Government departments, geotechnical engineers and landscape architects.

Advantages of Toyo-Mulching System® Evergreen Performance with Low Maintenance The Fiber Soil contains more than 95% of natural organic fiber, which is a good moisture-retaining agent. The moisture can be kept inside the system to support the growth of vegetation even during dry seasons. The layer of Fiber Soil consists of various types of organic and inorganic moisture retaining agents for the establishment of broad leaf plants. Once the vegetation system is established, the soil surface will be fully protected from intensive evaporation due to sunlight and strong wind. Watering is usually not necessary in summer seasons; however, monthly watering is suggested to maintain evergreen performance, especially during dry winters when there is no rainfall for more than 30 consecutive days.

March 2002

June 2002

September 2002 December 2002

Slopes (11NW-A/C98, 11NW-A/C99) beneath the Princess Margaret Hospital in Kwai Chung

High Flexibility of Materials

Toyo-Mulching System® on a slope (Feature No. 11SE-C/C694) near Tai Tam Reservoir Road

The Toyo-Mulching System® can be applied on steep slopes with almost any surface conditions. The turf reinforcement mat is flexible and can be applied on uneven slope surface or slopes with high density of existing trees (see the two images above). The Fiber Soil, after being mixed with water, fertilizers and seeds, was sprayed by using a high-powered air compressor to as far as 100 meters horizontally and 50 meters vertically. The flexibility of this technique not only makes the TMS be applicable onto remote and elevated locations, but also minimizes the disturbance to the surrounding residents.

Energy Generator Mixing Yield

Long Lasting Nutrient Availability in Fiber Soil The layer of Fiber Soil, which consists of more than 50% of organic matter, can support a satisfactory establishment of vegetation. In the mature stage of the TMS, dead tissue of the mature plants will be decomposed into the soil layer and become part of the nutrient cycle in the system itself. In figure 1, the total concentrations of Nitrogen, Phosphorus and Potassium did not decrease through out six years after completion. This could save up the annual application of fertilizer.

Figure 1a&b. Percentages of organic matter and macronutrients in Fiber Soil over time.

Application on Steep Slopes The layer of the Fiber Soil is made up of 95% natural vegetation fibers, and is very light in weight, i.e. 350 kg/m3. It is proved that it can be self-sustained on steep non-soil slope (see the image on the right) even under the heavy rainfall in Hong Kong. The high porosity of the fiber soil enhances the growth of rooting system of the plant and further reinforces the fiber soil to prevent erosion. Besides, the system is designed to be fixed with individual small unit by individual anchor, such that the bulging effect and stress failure can be eliminated

Departmental Quarters at Lai Chi Ling Road, Lai King

Percentage of Macro-Nutrients

0

0.2

0.4

0.6

0.8

1

0 1 2 3 4 5 6

Year After Completion

(%)

Total NitrogenTotal PhosphorusTotal Potassium

Percentage of Organic Matter

0

20

40

60

80

0 1 2 3 4 5 6

Year After Completion

(%)

Particular Preambles for Standard Method of Measurement

Toyo-Mulching System

The units of measurement should be:

(i) Toyo-Mulching System---------------------------square meter (ii) Establishment Work-------------------------------square meter

The measurement of Toyo-Mulching System should be the surface area of the slope vegetated. No allowance should be made for surface irregularities or other local peculiarities. No deduction should be made for opening of size one square meter or less. Separate items should be provided for works in accordance with General Principles paragraphs 3 and 4 and the following: Group Feature

I. Toyo-Mulching System

II Establishment Work The items for Toyo-Mulching System should, in accordance with General Preambles paragraph 2, include :

(a) Preparation of surface; (b) Supply and install 3-dimensional turf reinforcement mat; (c) Supply and install fertilizer strip; (d) Installation of root hole with planter tube for climber sprig; (e) Supply and spray the fiber soil with grass seed mix; (f) Supply and plant creeper by plug planting; (g) Supply and install erosion control mat with iron staple.

The items for establishment work should, in accordance with General Preambles paragraph 2, include :

(a) Watering; (b) Fertilizing; (c) Insect and pest control; (d) Grass cutting; (e) Reseeding where the grass fails to become established.

Particular Specification of Toyo-Mulching System GENERAL General Requirement 1.01 Toyo-Mulching System is a vegetation treatment to the non-soil surface of

slope such as shotcrete, no fine concrete, concrete buttress, bedrock or chunamwith slope gradient not more than 75o. It should be carried out at locations as shown on the drawings or as directed by the Engineer.

The Hong Kong sole agent for this method is Toyo Greenland Company Limited at No. 58, South Section, Wah Shan Village, Sheung Shui, N.T. (Tel. No.: 2639 9312 Fax No. 2377 2150)

List of Approved Suppliers of Materials and Specialist Contractors

1.02 If the Contractor is not included in the “ List of Approved Suppliers of Materials and Specialist Contractors for Public Works” maintained by the Employer for: Landscaping Class II – Hydroseeding – Group II

Then he should enter into written sub-contractors with approved listed contractors, in the relevant Group, for the execution of respective part of the Works.

MATERIALS & EQUIPMENT Turf Reinforcement Mat

2.01 It should be PVC coated rhombus galvanized wire mesh with diameter 2.5 mm, 50 mm/50 mm rhombus opening and 30 mm thickness when it is spread.

Auxiliary Anchor 2.02 It should be galvanized mild steel with 16 mm diameter and 400 mm length.

Subanchor 2.03 It should be galvanized mild steel with 8 mm diameter and 200 mm length.

Seeds 2.04 Grass seeds are imported in terms of species, varieties and purity. The origin of seed and the name of the supplier should be stated on the container or packing. (1) The quality of grass seed should be gauged by purity, germination

percentage and freedom from weeds. The total weed seed content should not exceed 0.5% by total mass and the total content of other crop seeds should not exceed 1% by total mass.

(2) The application rate for the Toyo-Mulching System should be as follows:

Species Application Rate

Bermuda grass (Cynodon dactylon) 15 gram/m2 Bahia grass (Paspalum notatum) 10 gram/m2

Other seed may be selectively added as requested

Fiber Soil 2.05 (1) The fiber soil should be the Soil-Factor or equivalent material, supplied by Toyo Greenland Company Limited. It should be excellent in gas permeability and water-retaining capacity and can maintain fertilizer for a long period of time. Besides, it should be strong resistance to drought and rain erosion. High alkaline content material should not be used as bonding agent. The fiber soil consists of the following ingredients:

Ingredients Application Rate (per m3)

(a) High grade Peatmoss 600 litre

(b) Wood chip compost 400 litre

(c) Chemical fertilizer (N:P:K = 13:3:11) 0.4 kg

(d) Chemical fertilizer (N:P:K = 4:17:4) 1.2 kg

(e) Perlite powder 4.0 kg

(f) Acrylic polymer granules 0.1 kg

(g) Bonding agent 9.0 kg

(h) Germination stimulator 1.0 kg

(2) The properties of the fiber soil are:

(a) pH value 6.0 to 7.5 (b) Moisture content 30 % to 35 % (c) Organic matter content (dry weight) 50 % to 90 % (d) Organic Carbon content (dry weight) 40 % to 60 % (e) Total Nitrogen content (dry weight) 0.1 % to 1.5 % (f) Carbon: Nitrogen ratio 35:1 to 50:1 (g) Dry density 400 kg/m3 to 450 kg/m3 (h) Saturated density 350 kg/m3 to 400 kg/m3

Erosion Control Mat 2.06

Erosion Control Mat should be made with approved coir mesh or equivalent materials. It should be natural coir fiber product and should not be degradedwithin 5 years after application or until the specified grass cover has been

established.

Fertilizer Strip 2.07 Fertilizer strip or equivalent material is supplied by Toyo Greenland Company Limited. It should be a double-layer non-woven strip, which filled with approved slow-released fertilizer and water retaining agent.

Creeper Sprig 2.08 The creeper sprig should not be more than 150 mm long, but with more than 1 number of healthy nodes.

Planter Tube

2.09 It should be perforated PVC tube with 170 mm long and approximate 32 mm indiameter which filled with topsoil, post-planting fertilizer, moisture retaining crystal and 2 numbers of creeper sprig.

Spraying Machinery 2.10 The spraying machinery should be a wet spraying machinery that should be

verified by the material supplier in order to facilitate the spraying of fiber soil. Water and ingredients of fiber soil should be readily mixed before loading into the machine for spraying.

MATERIALS SUBMISSION Submission 3.01 The following particulars of the proposed materials for Toyo-Mulching System

and establishment works should be submitted to the Engineer, not less than 14 days before the commencement of works.

Particulars of Seed Mixture

3.02 A certificate or a numbered seed analysis report for each seed mixture issued within 6 months before the date of use of the seed showing the species and variety of the seed, the date of testing and including results of tests:

(a) Percentage of germination of pure seed in a fixed period of time under standard laboratory conditions

(b) Percentage of composition by weight, including details of

impurities

Test Report of Fiber Soil

3.03 A test report of fiber soil issued within 6 months before the date of use should include details of the composition and results of test for:

(a) PH value (b) Total organic matter (c) Moisture content (d) Carbon/Nitrogen ratio (e) Dry density (f) Saturated density

Particulars of Other Materials

3.04 The following particulars of the proposed materials and method statement ofToyo-Mulching System should be submitted to the Engineer:

(a) Species and rate of application of grass seed and creeper sprig (b) Type and rate of application of water retaining agent, fertilizer and

bonding agent (c) Detail of turf reinforcement mat, fertilizer stripe, anchor and

subanchor (d) Type and detail of erosion control mat (e) Details of the company employed to carry out the hydromulching

System. The company should provide at least 3-year local job reference of projects, which proved to be successful with all year round self-sustained vegetation.

(f) Details of the equipment to be used (g) Details of the mixing yard

Samples of Materials 3.05 (1) Samples of the following proposed materials should be submitted to the

Engineer at the same time as particulars of the material are submitted:

Samples Quantity

(a) Fiber soil 10 litre (b) Fertilizer strip 500 mm (c) Turf reinforcement mat 1 sq. feet (d) Auxiliary anchor 1 no. (e) Subanchor 1 no. (f) Erosion control mat 1 sq. feet

(2) Samples of materials for Toyo-Mulching System and the program of establishment works should be inspected and approved by the Engineer before the delivery of material to the site.

METHOD STATEMENT

Preliminary 4.01 The method statement and procedure of work should be read in conjunction with the detail of the drawing or as requested by the Engineer. All provisional works should be scheduled according to the different gradients and surface conditions of slopes according to the instruction of Engineer.

Ground Cleaning 4.02 Weeds, rubbish, litter, stones exceeding 50 mm diameter and all deleterious material should be removed from the surface of the ground. Vegetation should be cleared without using herbicide unless permitted by the Engineer. If permitted, the herbicide should be a proprietary type approved by the Engineer and should be applied in accordance with the manufacturer's recommendation.

Fixing of Turf Reinforcement Mat

4.03 (1) Fixing of turf reinforcement mat by the anchor and subanchor. (2) The auxiliary anchor should be fixed at a minimum of 1,000 mm c/c along

the top of the slope if the system is applied on the slope without the shotcrete cover.

(3) Minimum 50 numbers of subanchors should be fixed in every 100 m2 of

area.

Installation of Fertilizer Strip

4.04 (1) The double layer non-woven fertilizer strip filled with slow-releasedfertilizer and water retaining agent.

(2) The fertilizer strip should be inserted horizontally into turf reinforcement

mat at approximate 500 mm c/c.

Extension of Weep Hole

4.05 If there is weep hole and ranking drain on the slope, it should be extended 100 mm further with similar material in order to avoid blocking of outlet after hydromulching.

Installation of Root Hole

4.06 If the vegetation system is applied onto the sprayed concrete cover, the roothole should be drilled at approximate 32 mm diameter and 200 mm depth by mechanical or electricity drill. The PVC perforate planter tube will then be inserted into the root hole after the completion of spraying work. The spacing of the root hole should be at least 1,500 mm c/c in stagger pattern

or instructed by the Engineer.

Hydromulching 4.07 (1) The fiber soil should be mixed with seed and water in an appropriate proportion.

(2) The mixture will be sprayed by wet spraying machinery onto the

surface until reaching thickness of at least 50 mm or covering the thickness of turf reinforcement mat.

(3) Walking on the area that have been hydromulched should be restricted

to access unless the fixing protective fabric or the work of patching up.

Installation of Erosion Control Mat

4.08 The Erosion Control Mat should be laid and fixed with iron staple on the surface of fiber soil layer with anchor at approximate 1,000 mm c/c. The overlapping of the mat should not more than 50 mm in order to prevent the interruption of the growth of vegetation under the mats.

Planting of Creeper Sprig

4.09 (1) Creeper sprig will be planted by hand plugging at 500 mm c/c if no planter tubes are installed.

(2) 1 number of well-established planter tube will installed into the root hole

for the work applied on the shotcreted slope.

ESTABLISHMENT WORKS Establishment Works 5.01 (1) Establishment works should be carried out for the period stated in the

Contract and in accordance with Clauses 5.04 to 5.06. (2) All necessary measures should be taken to ensure that vegetation cover

become well-established and to keep the area tidy and free from litter and rubbish.

Inspection of Establishment Works

5.02 An inspection of Toyo-Mulching System and the establishment works should be carried out jointly by the Contractor and the Engineer at monthly intervals when required. The Engineer should instruct the Contractor to carry out establishment works when necessary; the work instructed should be completed within 14 days after the date of the Engineer's instruction.

Replacement of 5.03 Vegetation coverage of 90% of the area should be achieved at the end of the

Vegetation period for establishment works. The vegetation should be healthy and free from weeds. Areas that are considered unsatisfactory by the Engineer should be reseeded by hydroseeding as stated in General Specification.

Watering 5.04 (1) Fresh water should be used for watering for Toyo-Mulching System.

Water should be applied by using a hose or any type of sprinkler agreed by the Engineer and in such a manner that compaction, washout of loosening material will not be caused; any damage caused should be made good immediately.

(2) After spraying, watering should be carried out every 7 days. The

minimum requirement for watering should be 10 litres/m2. The Contractor may apply for the Engineer’s agreement for relaxation of the requirements in the event of rainfall more than 10mm is recorded in the past 7 days.

(3) Watering should be conducted until the vegetation is satisfactorily

established.

Grass Cutting 5.05 (1) The inspection of grass cutting should be carried out twice a year at 5th month and 11th month after completion of work.

(2) Grass should be trimmed along the boundary of hydromulched area, if

the creeper spread outside boundary of the hydromulched area more than 500 mm.

(3) Grass shall be reduced by cutting to a height of 100mm when it reaches

300 mm height.

Control of Pests and Fungi

5.06 Pesticide or fungicide should be applied in accordance with the manufacturer's recommendations to control pests and fungi.

Completion of Work 5.07 Immediately before the end of the period for establishment works:

(a) All planted and grassed areas should be free from litter; (b) All replacement and patching up of vegetation should be completed; (c) All vegetation edges should be trimmed.

TESTING OF VEGETATION COVERAGE

Testing of Vegetation Coverage

6.01 (1) Tests should be carried out to determine the vegetation coverage. The tests should be carried out 100 days after grassing and at the end of the period for establishment works. The vegetation should be cut to a height of 300 mm if necessary over the parts of the area to be tested.

(2) The number of tests should be instructed by the Engineer

(3) Tests should be carried out at location that is chosen by the Engineer to

represent the grassed area as a whole. At each test location an approximate area of 10 m2 should be marked.

Compliance Criteria of Vegetation Coverage

6.02 At least 90% of each test area should be covered with vegetation unless the existing gradient of the slope is greater than that from design, or it is a shaded area that is not suitable for vegetation growth.

Non-compliance of Vegetation Coverage

6.03 If the result of any test for vegetation coverage of Toyo-Mulching System does not comply with the specified requirements for vegetation coverage, the area should be reseeded, by hydroseeding as stated in General Specification,depending upon the size of the defective area, as instructed by the Engineer.

Toyo Greenland Co., Ltd.Check : Ho Tat Pui, Daniel

Ref.:

Scale : N.T.S.

Date: 20 January 2005

COPY RIGHTProject :

Existing Shotocrete Slope

65°<x<80°

300 mm

Concrete Apron

Drawing Title : Section Detail of Toyo-Mulching System

Plug Planting @ 1,500 mm c/c

Planter Tubewith approx. dia. 32 mm and length 170 mm @ 1,500 mm c/c(for work on shotocrete)

Chamfer

Berm Slab

Vegetation Grass

Shotocrete

Galvanized Mild Steel Sub-anchor with dia. 8 mm and length 200 mm @ 1,000mm c/c

Turf Reinforcement Mat PVC Coated Wire Meshwith dia. 2.5 mm, 50/50 mm open, 30 mm thickness

Fiber Soil with50 mm thickness

Galvanized Auxiliary Mild Steel Anchor with dia. 16 mm and length 400 mm @ 1,000 mm c/c

Erosion Control Mat - Geomat GM500

Fertilizer Strip @ 500 mm c/c

Planter Tube with approx. dia. 32 mmand length 170 mm Filled with Fiber Soil and Climber Sprig.

Geomat GM500

Shotocrete

Fiber Soil

Detail of Planter Tube

Climber Sprig

Tube Planting of Climber Spring @ 1,500 mm c/c

15/8/2007 TOYO GREENLAND COMPANY LIMITEDTel : 2639 9312 Fax : 2377 2150

Project Description of Work Main Contractor /Subcontractor

Client Consultant / Landscape Architect /Architect

Completion Date

Vegetation System Work at Chung Chi RoadThe Chinese University of Hong KongSlope No.: 7NE-C/C9

Hydromulching System - 200 sq mToyo-Mulching System - 10 sq mSoil Creat System - 50 sq m

Enpack (HK) Ltd. The Chinese University of Hong Kong Fugro (HK) Ltd. November 2000

Ming Hua Tang, The Chinese University of Hong KongSlope No.: 7NE-C/C56

Toyo-Mulching System onSoil Slope with Chunam Cover - 30 sq mNo Fines Concrete Surface - 35 sq mRock Surface - 35 sq m

Enpack (HK) Ltd. The Chinese University of Hong Kong Fugro (HK) Ltd. April 2001

No. 9 Middle Gap Road, Hong KongSlope Improvement Work for Residential Development

Toyo-Mulching System on Sprayed ConcreteSlope - 585 sq mPit Planting in Tree Rings

Ever Construction Co., Ltd. Chinese Estates Group Urbis Ltd. January 2001

Residential Development at No. 27-29 South Bay Close, RepulseBay, Hong Kong

Toyo-Mulching System with Root Hole andClimber on Sprayed Concrete Slope andConcrete Buttress - 3,000 sq mEco-Bag

Chun Wo Construction & Engineering Co., Ltd. Emperor Project Management (HK) Ltd. Edaw Earthasia Ltd. November 1999

Contract No.: 99/8007Slope Improvement Work for Lamma Power Station and 275 KVCable Routes on Lamma Island

Toyo-Mulching SystemSprayed on Concrete Slope - 500 sq mSprayed on No Fines Concrete Slope -1,300 sq m

Paul Y. Construction Co., Ltd.Capture Construction Co., Ltd.

The Hong Kong Electric Co., Ltd. Edaw Earthasia Ltd. April 2000

Contract No.: SS F454Princess Margaret Hospital, Lai Kong Street,Lai King, N.T.

Toyo-Mulching System on Sprayed ConcreteSlope- 4,488 sq mEco-BagGeomat - 4,488 sq m

China Overseas Building Construction Ltd. Architectural Services Department Architectural Services Department September 2000

Contract No.: 2/WSD/97Maintenance Term Contract, Vegetation Improvement Work to theExisting Slope at Tai Tam Reservoir RoadSlope No.: 11SE-C/C694

Toyo-Mulching System on Sprayed ConcreteSlope - 785 sq mGeomat - 785 sq m

Chun Wo Construction & Engineering Co., Ltd. Water Supplies Department Water Supplies Department October 2000

Contract No.: 97 of 1996Tiu King Ling Site Formation WorkVegetation Improvement Work to Existing Slope


China State Construction Engineering (HK) Ltd. Hong Kong Housing Authority N.A. July 2000

Contract No.: GE/98/02Slope Improvement Work at Tai Po Road, Sham Shui PoSlope No.: 11NW-B/C16


Kwan On Construction Co., Ltd. Geotechnical Engineering Office Geotechnical Engineering Office August 2000

Summary of Job Reference - Toyo-Mulching System

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Completion Date


Contract No.: GE/99/18Slope No.: 11NW-D/C 330 & C548, SE of Tsoi Kung PoSecondary SchoolLPM Project, Phase 1, Package A

Toyo-Mulching System on Sprayed ConcreteSlope - 100 sq m

Gammon Construction Co., Ltd. Geotechnical Engineering Office Halcrow China Ltd. December 2000

Contract No.: GE/99/21LPM Project, Package D Landslip Preventive Works for Slopes,Kam Shan Country ParkTai Po RoadSlope No.: 7SW-D/C536 - 527 sq mSlope No.: 7SW-D/C547 - 290 sq mSlope No.: 7SW-D/C553 - 280 sq mClear Water Bay RoadSlope No.: 12SW-A/C125 - 68 sq mSlope No.: 12NW-C/C92 - 136 sq m

Toyo-Mulching System on Sprayed ConceteSlope - 1, 301sq mGeomat - 1,301 sq m

Kin Shing Construction Co., Ltd. Geotechnical Engineering Office Binnie Black & Veatch Hong Kong Ltd. December 2000

Contract No.: 1/ WSD/ 00 (1)Term Contract for WaterworksDistrict No. 1 - Hong Kong Island and Ap Lei ChauSlope No.: 11SW-C/C322

Toyo-Mulching System on Sprayed ConceteSlope - 528 sq mGeomat - 528 sq m

Chun Wo Construction & Engineering Co., Ltd. Water Supplies Department N.A. December 2000

Contract No.: 10/HY/99Nam Fung Road, Shouson HillSlope No.: 11 SW-D/C110

Toyo-Mulching on Sprayed Concrete Slope -237 sq mGeomat - 237 sq m

Hung Mau Realty & Construction Ltd. Highways Department N.A. July 2001

Contract No.: 10/HY/99Big Wave Bay - Shek O RoadSlope No.: 15NW-B/C76

Toyo-Mulching on Sprayed Concrete Slope -388 sq m

Hung Mau Realty & Construction Ltd. Highways Department Highways Department March 2001

Contract No.: 18/HY/98Vegetation Improvement Work to the Existing Slope at HearlechRoadSlope No.: 11SW-C/C300


Chun Wo Construction & Engineering Co., Ltd. Highways Department Highways Department March 2001

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Completion Date


Contract No.: 18/HY/98Hearlech RoadSlope No.: 11SW-C/C300 - 400 sq mStubbs RoadSlope No.: 11SW-D/C391 - 420 sq mTai Hang RoadSlope No.: 11SE-C/C123 - 650 sq mPo Fu LamSlope No.: 11SW-A/C135 - 215 sq mSlope No.: 11SW-A/C138 - 250 sq mPrice RoadSlope No.: 11SE-C/C166 - 500 sq mCoombe RoadSlope No.: 10228C00160 - 350 sq mStewart TerraceSlope No.: 11SW-D/CR241 - 340 sq mHarlech RoadSlope No.: 15SW-C/C301 - 521 sq m

Toyo-Mulching System on Sprayed ConcreteSlope, total area - 4,146 sq m


Contract No.: 18/HY/98Vegetation Improvement Work to the Existing Slope at StubbsRoadSlope No.: 11SW-D/C391



Contract No.: 18/HY/98Vegetation Improvement Work to the Existing Slope at Tai HangRoadSlope No.: 11SE-C/C123


Chun Wo Construction & Engineering Co., Ltd. Highways Department Highways Department February 2001

Contract No.: 10/HY/99Provision of Vegetation to Hard Slope Surface at Nam Long ShanRoadSlope No.: 15NW-B/C334





Hung Mau Realty & Construction Ltd. Highways Department Highways Department November 2001




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Completion Date


Contract No.: 10/HY/99Provision of Vegetation to Hard Slope Surface at Stanley GapRoadSlope No.: 15NW-A/C139



Contract No.: 10/HY/99Provision of Vegetation to Hard Slope Surface at Tung Tau WanRoadSlope No.: 15NE-C/C2


Hung Mau Realty & Construction Ltd. Highways Department Highways Department February 2001

Contract No.: 10/HY/99Provision of Vegetation to Hard Slope Surface at Stanley GapRoadSlope No.: 11NE-C/C2



Contract No.: 18/HY/98Vegetation Improvement Work to the Existing Slope at StewartTerrace


Chun Wo Construction & Engineering Co., Ltd. Highways Department Highways Department July 2002

Contract No.: 18/HY/98Vegetation Improvement Work to the Existing Slope at HarlechRoadSlope No.: 15SW-C/C301



Contract No.: 18/HY/98Vegetation Improvement Work to the Existing Slope at Po FuLamSlope No.: 11SW-A/C135



Contract No.: 18/HY/98Vegetation Improvement Work to the Existing Slope at PriceRoadSlope No.: 11SE-C/C166



Contract No.: 18/HY/98Vegetation Improvement Work to the Existing Slope at PriceRoadSlope No.: 11SE-C/C166



Contract No.: 18/HY/98Vegetation Improvement Work to the Existing Slope at Po FuLamSlope No.: 11SW-A/C138



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Completion Date


Contract No.: 18/HY/98Vegetation Improvement Work to the Existing Slope at CoombeRoadSlope No.: 10228C00160


Chun Wo Construction & Engineering Co., Ltd. Highways Department Highways Department February 2001

Contract No.: 18/HY/98Vegetation Improvement Work to the Existing Slope at StewartTerrace 10612C0020 andSlope No.: 11SW-D/CR241



Contract No.: 10/HY/99Provision of Vegetation to Hard Slope Surface at Shek On RoadSlope No.: 11SE-D/C104


Hung Mau Realty & Construction Ltd. Highways Department Highways Department April 2001

Contract No.: 10/HY/99Provision of Vegetation to Hard Slope Surface at Shek On RoadSlope Near Catchpit SO 61



Contract No.: 10/HY/99Provision of Vegetation to Hard Slope Surface at Shek On RoadSlope No.: 11NE-B/C57


Hung Mau Realty & Construction Ltd. Highways Department Highways Department April 2001

Contract No.: 10/HY/99Provision of Vegetation to Hard Slope Surface at Shek On RoadSlope Near Catchpit SO 63



Residental Development atNo. 20 Wai Fung Street, Ap Lei Chau

Toyo-Mulching On Sprayed Concrete Slope -230 sq mGeomat - 230 sq m

N.A. Nan Fung Group Urbis Ltd. April 2001

Contract No.: HY/2000/03Footbridge Across Wong Chuk Hang Road Near AberdeenSports Ground

Toyo-Mulching System on Sprayed ConceteSlope - 243 sq mEco-Bag

Kwan Kee Construction Co., Ltd. Highways Department Maunsell Consultants Asia Ltd. May 2001

Project No.: 067MCPublic Health Laboratory Centre Proposed Landscape Treatmentof Slope at Cheung Sha Wan

Toyo-Mulching System on Sprayed ConcreteSlope - 120 sq m

Shui On Construction Co., Ltd. Architectural Services Department N.A. December 2001

Contract No.: SS G328Design and Construction of Departmental Quarters at Lee OnRoad, Kwun Tong

Toyo-Mulching System on Sprayed ConcreteSlope- 2, 000 sq mEco-BagSpray Colour

Hsin Chong - Taylor Woodrow Joint Venture Architectural Services Department Belt Collins Hong Kong Ltd. December 2001

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Completion Date


Contract No.: SS G331Design and Construction of Departmental Quarters at Lai Chi LingRoad, Lai King

Toyo-Mulching System on Sprayed ConcreteSlope - 4,717 sq m

Dragages et Travaux Publics (HK) Ltd. Architectural Services Department N.A. April 2002

Chinese University of Hong KongProposed Slope Improvement Works toSlope No.: 7NE-C/C3, 7NE-C/C3 & C282

Toyo-Mulching System on Rock Slope - 268sq m

Barbican Construction Co., Ltd. The Chinese University of Hong Kong fugro (HK) Ltd. December 2001

Contract No.: GE/2001/10LPM Project, Phase 2Tai Lam Tunnel RoadSlope No.: 6SE-A/C131 - 2,182 sq mFei Ngo Shan RoadSlope No.: 7SE-C/C594 - 663 sq m

Toyo-Mulching System on Sprayed ConcreteSlope - 2,845 sq mGeomat - 2,845 sq m

Barbican Construction Co., Ltd. Geotechnical Engineering Office C M Wong and Associated Ltd. March 2002

Contract No.: DC/99/01Drainage Maintenance and Construction in Mainland SouthDistricts (2000-2002)Jordan Valley Nullah

Toyo-Mulching System on Sprayed ConcreteSlope - 1,800 sq mGeomat - 1,800 sq mEco-Bag

Hung Mau Realty & Construction Ltd. Drainage Services Department Drainage Services Department December 2002

Contract No.: 1/Lands/02Term Contract for Slope Maintenance and Improvement WorksSlope No.: 11SW-C/CR245Mount Kellett Road - The Peak

Toyo-Mulching System on No Fines ConcreteSlope - 31.86 sq m

Paul Y. Construction Co., Ltd.Dix Construction & Transportation Ltd.

Lands Department N.A. December 2002

Contract No.: SSK 319Construction of Morning Trail for Jordan Valley PlaygroundPhase 2 Stage 2 at Jordan Valley, Kowloon

Toyo-Mulching System on No Fines ConcreteSlope - 284 sq m

Union Contractors Ltd.Wang Fu Construction Ltd.

Architectural Services Department Edaw Earthasia Ltd. April 2003

Contract No.: GE/2001/06LPM Project, Phase 2, Package ASouth Lantau Road, Slope No.: 10SW-C/C64

Toyo-Mulching System on Soil and RockSlope- 311 sq m

Shun Yuen Construction Co., Ltd.CM Geotechnic Ltd.

Geotechnical Engineering Office Halcrow China Ltd.Urbis Ltd.

March 2003

Proposed Residential DevelopmentMan Kei ToiSai Kung

Toyo-Mulching System on Soil Slope - 500sq m

Sunley Engineering & Construction Co., Ltd.New Concepts Foundation Ltd.

USI Property Management Ltd. Belt Collins Hong Kong Ltd. August 2003

Pennys Bay Gas Turbine Power Station Toyo-Mulching System on Shotcrete Slope -1,130 sq m

Oriental Landscapes Ltd. China Light & Power Co., (HK) Ltd. Urbis Ltd. November 2003

Green Area Formation at R.B.L. 1138,Wong Ma Kok Road, Stanley,Hong Kong

Toyo-Mulching System 286sq mGeomat - 500 sq mEco-Bag

Chun Sing Engineering Co., Ltd. Regal Hotels International Holdings Ltd. Parsons Brinckerhoff (Asia) Ltd. July 2003

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Completion Date


Contract No. : DC/99/01Jordan Valley

Toyo-Mulching System 755sq m Hung Mau Realty & Construction Ltd. Drainage Services Department N.A. November 2003

Residential Development at No. 33 & 35 Island Road, DeepWater Bay Hong Kong

Toyo-Mulching System 101sq m Hip Hing Construction Co., Ltd. Koon Soon Ltd. and Hin Kei InvestmentLtd.

P.K. Ng & Associates (HK) Ltd. November 2003

Contract No.: TC J336Slope Improvement Works to the Museum of Coastal Defence

Toyo-Mulching System on Concrete Surface -200 sq m

Woon Lee Construction Co., Ltd. Architectural Services Department N.A. March 2004

Contract No.: CC404-Mei Foo Station Toyo-Mulching System 130sq m Kier-Zen Pacific Joint Venture Kowloon Canton Railway Corporation Hyder Consulting Limited June 2004

Yeung UK Tsuen, Ho Pui Tsuen, Mun Hau Tsuen Toyo-Mulching System 250sq m Kenfull Engineering Co., Ltd. Architectural Services Department Wda Wailee Design Architects Ltd. /CT & Associates (HK) Ltd.

July 2004

Contract No.: AL K328Slope Improvement Programme Phase IV, Package 3

Toyo-Mulching System 25sq m Ngai Tat Construction Co., Ltd. Architectural Services Department N.A. May 2004

Contract No.: GE/2002/05Feature No.: 11NW-D/C44Behind Lok Man San Tsuen, Kowloon

Toyo-Mulching System 350 sq m Yick Hing Construction Co., Ltd.Green Rank Ltd.

Geotechnical Engineering Office Binnie Black & Veatch Hong Kong Ltd. December 2004

Contract No. HC068-02132HKU - Flora Ho Sports Centre

Toyo-Mulching System - 742 sq mEco-Bag

Hanison Construction Co., Ltd. Hong Kong University ADI Ltd. June 2005

Minor Works Term Consultancy 2002-2004 Region 2Slope No.: 11NW-B/CR407Sheung Li Uk Garden

Planting WorkToyo-Mulching System - 600 sq mGeo-Net

China Geo-Engineering Corporation Architectural Services Department Kenneth Ng & Associates Ltd. January 2006

Contract No.:HEC No. 038013Additional Transmission System for Lamma Power Station275kV Cable Route From Lamma Island to CyberportN2 Landing Point

Toyo-Mulching System 316 sq mGeo-NetPlanting Work

Kaden Construction Ltd. Hong Kong Electric Co., Ltd. Maunsell Consultants Asia Ltd.Edaw Earthasia Ltd.

Ongoing

Kellett View Townhouse Renovation Works Toyo-Mulching System 400 sq mGeo-Net

Tysan Building Construction Co., Ltd. Kellett View Townhouse Map January 2007

C House - Pollock's Path Toyo-Mulching System Oriental Landscape Limited N.A. N.A. July 2007

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Ming Hau Tang, CUHK- Slope No.: 7NE-C/C56 Toyo-Mulching System on rock slope with gradient 550, completed in April 1999

Date: 16 April 1999 Date: 14 June 2000

Ming Hau Tang, CUHK – Slope No.: 7NE-C/C56 Toyo-Mulching System on no fines shotcrete slope with gradient 550, completed in April 1999

Date: 29 April 1999 Date: 14 March 1999

Ming Hau Tang, CUHK – Slope No.: 7NE-C/C56 Toyo-Mulching System on no fines shotcrete slope with gradient 550, completed in April 1999

Date: 16 April 1999 Date: 14 June 2000

Contract No.: 99/8007 Lamma Island CLP Power Station – Slope No.: R.S.7 Toyo-Mulching System on soil slope with gradient 550 – 600, completed in November 1999

Date: 20 October 1999 Date: 3 May 2001

No. 9 Middle Gap Road, The Peak – Slope No.: 11SW-D/C1734 Toyo-Mulching System on shotcrete slope with tree ring and gradient 600 – 750, completed in December 1999

Date: 1 December 1999 Date: 4 June 2001

No. 27 South Bay Close, Repulse Bay – Slope No.: 15 NE-A/C8 Toyo-Mulching System on rock slope with shotcrete, concrete buttress, gradient 550 – 600, completed in January 2000

Date: 10 November 1999 Date: 6 May 2003

Contract No.: HKHA 97 of 1996 Site Formation work at Tiu King Leng Toyo-Mulching System on shotcrete slope with gradient 550, completed in August 2000

Contract No.: GE/98/02 Tai Po Road, Sham Shui Po – Slope No.: 11NW-B/C16 Toyo-Mulching System on no fine covered with shotcrete slope with gradient 650, completed in August 2000

Contract No.: 2/WSD/97 Tai Tam Reservoir Road, Tai Tam – Slope.: 11/SE-C/C694 Toyo-Mulching System on shotcrete slope with gradient 550 – 700, completed in September 2000

Date: 16 July 2000 Date: 13 June 2002

Date: 20 July 2000 Date: 3 August 2001

Date: 15 August 2000 Date: 2 August 2001

Contract No.: GE/99/18 Tsoi Kung po Secondary School, Ho man Tin – Slope No.: 11NW-D/C330 Toyo-Mulching System on no fines shotcrete slope with gradient 650, completed in November 2000

Contract No.: SS F454 Princess Margaret Hospital, Lai Kong Street – Slope No.: 11NW-A/C98 & C99 Toyo-Mulching System on shotcrete slope with gradient 550 – 800, completed in November 2000

Contract No.: GE/99/21 Kam Shan Country Park, Tai Po Road – Slope No.: 7SW-D/C536 Toyo-Mulching System on shotcrete slope with gradient 750, completed in December 2000

Date: 15 October 2000 Date: 12 June 2001

Date: 27 March 2000 Date: 6 May 2003

Date: 16 June 2001 Date: 29 March 2002

Contract No.: 10/HY/99 Nam Fung Road, Shouson Hill – Slope.: 11SW-D/C110 Toyo-Mulching System on shotcrete slope with gradient 600, completed in December 2000

Contract No.: 10/HY/99 Big Wave Bay Road, Shek O –Slope No.: 15NW-B/C76 Toyo-Mulching System on shotcrete slope with gradient 450, completed in December 2000

Contract No.: 1/WSD/00 Pokfulam Reservoir Road, Pokfulam – Slope No.: 11SW-C/C322 Toyo-Mulching System on shotcrete slope with gradient 650, completed in January 2001

Date: 14 December 2000 Date: 14 March 2002

Date: 19 December 2000 Date: 7 May 2002

Date: 30 December 2000 Date: 8 May 2002

Contract No.: 18/HY/98 Harlech Road, The Peak – Slope No.: 11SW-C/C301 Toyo-Mulching System on shotcrete slope with gradient 450 – 600, completed in February 2001

Contract No.: 10/HY/99 Nam Long Shan Road, Wong Chuk Hang – Slope No.: 15NW-B/C176 Toyo-Mulching System on shotcrete slope wit gradient 700, completed in February 2001

Contract No.: 10/HY/99 Nam Long Shan Road, Wong Chuk Hang – Slope No.: 15NW-B/C354 Toyo-Mulching System on shotcrete slope with surface soil nail head block with gradient 650, completed in March 2001

Date: 10 January 2001 Date: 22 May 2001

Date: 5 February 2001 Date: 17 May 2002

Date: 30 January 2001 Date: 31 July 2001

Contract No.: 10/HY/99 Nam Long Shan Road, Wong Chuk Hang – Slope No.: 15 NW-B/C334 Toyo-Mulching System on shotcrete slope with gradient 600, completed in March 2001

Contract No.: 18/HY/98 Victoria Road, Mount Davis – Slope No.: 11SW-A/F75 Toyo-Mulching System on shotcrete slope with gradient 350, completed in March 2001

Date: 30 January 2001 Date: 31 March 2001

Date: 3 January 2001 Date: 22 June 2001

Contract No.: 18/HY/98 Price Road, Causeway Bay – Slope No.: 11SE-C/C166 Toyo-Mulching System on no fines concrete slope with gradient 600 – 700, completed in March 2001

Date: 16 March 2001 Date: 28 September 2001

Contract No.: 10/HY/99 Tong Tau Wan Road, Stanley Bay – Slope No.: 15NE-C/C2 Toyo-Mulching System on shotcrete slope with gradient 600, completed in March 2001

Contract No.: 10/HY/99 Stanley Gap Road, Stanley – Slope No.: 15 NE-A/C139 Toyo-Mulching System on shotcrete slope with gradient 600, completed in March 2001

Date: 15 February 2001 Date: 22 February 2002


Contract No.: 18/HY/98 Stubbs Road, Wan Chai – Slope No.: 11SW-D/C391 Toyo-Mulching System on shotcrete slope with gradient 500 – 700, completed in March 2001


Contract No.: 18/HY/98 Tai Hang Road, Causeway Bay – Slope No.: 11SE-A/C123 Toyo-Mulching System on shotcrete slope with gradient 500 – 800, completed in March 2001

No. 20 Wai Fung Street, Ap Lei Chau Toyo-Mulching System on shotcrete slope with gradient 600 – 700, completed in April 2001

Contract No.: HY/2000/03 Footbridge across Wong Chuk hang Road Toyo-Mulching System on shotcrete slope with gradient 600, completed in April 2001




Contract No.: GE/99/21 Kam Shan Country Park, Tai Po Road – Slope No.: 7SW-D/C547 Toyo-Mulching System on shotcrete slope with gradient 450 – 700, completed in June 2001

Contract No.: GE/99/21 Tai O Mun Road, Clear Water Bay – Slope No.: 12SW-A/C125 Toyo-Mulching System on shotcrete slope with gradient 600, completed in July 2001

Contract No.: GE/99/21 Clear Water Bay Road, Clear Water Bay – Slope No.: 12NW-C/C92 Toyo-Mulching System on shotcrete with gradient 450 – 600, completed in September 2001

Date: 16 June 2001 Date: 16 October 2003

Date: 3 July 2001 Date: 18 March 2003

Date: 3 July 2001 Date: 3 April 2002

Contract No.: 067MC Public Health Laboratory Centre, Nam Cheong Street, Shek Kip Mei Toyo-Mulching System on no fines concrete slope with gradient 450 – 500, completed in November 2001

Contract No.: SS G328 Design and construction of Departmental Quarters Lee on Road, Kung Tong Toyo-Mulching System on shotcrete slope with gradient 600 – 700, completed in December 2001

Contract No.: SS G331 Departmental Quarters, Lai Chi Ling Road, Lai King Toyo-Mulching System on shotcrete slope with gradient 700 – 850, completed in March 2002

Date: 1 August 2001 Date: 21 June 2002

Date: 19 November 2001 Date: 25 June 2002

Date: 17 January 2002 Date: 23 May 2002

Contract No.: GE/2001/10 Tai Lam Country Park, Pat Heung – Slope No.: 6SE-A/C131 Toyo-Mulching System on shotcrete cover with gradient 650, completed in May 2002

Date: 12 March 2002 Date: 24 July 2002

Chinese University of Hong Kong Proposed Slope Improvement Works to Slope No.: 7NE-C/C282 Toyo-Mulching System on rock slope with gradient 700, completed in May 2002

Date: 4 March 2002 Date: 15 July 2002

Chinese University of Hong Kong Proposed Slope Improvement Works to Slope No.: 7NE-C/C3 Toyo-Mulching System on rock slope with gradient 700, completed in May 2002


Date: 30 August 2002 Date: 29 March 2003

Contract No.: DC/99/01 Landscape Improvement Work at Jordan Valley Nullah Toyo-Mulching System on shotcrete slope and concrete buttress with gradient 450, completed in November 2002

Content Catalogue/Toyo... · Introduction of Toyo-Mulching System® Toyo-Mulching System® (TMS) is...

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