Week 6 - Site Clearance

AQS 1100 PRINCIPLES OF MEASUREMENT FOR BUILDING WORKS

WEEK SIX – SITE CLEARANCE

OUTLINE

INTRODUCTION TO SMM2 CLAUSE- GENERAL- SECTION A (GENERAL RULES) INTRODUCTION TO SITE CLEARANCE

MEASUREMENT MEASUREMENT RULES GUIDE TO TAKING OFF

INTRODUCTION TO SMM2

SECTION

HEADING Guide for measuring:

A GENERAL RULES Guide on general rule for measurement works

B PRELIMINARIES preliminaries items related to construction works, contracts, descriptions etc

C DEMOLITION demolition works, description writing and considerations

D EXCAVATION & EARTHWORK

Site clearance, excavation works, earthworks (cutting & filling)

E PILING & DIAPHRAGM WALLING

Piling works, testing for piling, diaphragm wall

F CONCRETE WORK

Concrete works (precast/RC): foundations, pile cap, beams, columns, wall etc. including reinforcement, formwork

G BRICKWORK & BLOCKWORK

Brickworks, blockworks


SECTION


H UNDERPINNING Works associated with underpinning (i.e. excavation)

J MASONRY Stoneworks, its classification and construction joints

K WATERPROOFING & ASPHALT WORK

Waterproofing works for floors, pavement, roofing, tanks, basements etc

L ROOFING Roof coverings, accessories and rain water goods (RWG)

M WOODWORK Timberworks associated with : carcassing (frame), boardings, finishes, door & window frame, ironmongeries etc

N STRUCTURAL STEELWORK

Steel frame works (i.e. factory buildings, malls, offices)

P METALWORKS Metal works which includes: plates, door & window frame, balustrades, staircase etc


SECTION


Q PLUMBING & MECHANICAL ENGINEERING INSTALLATIONS

Pipeworks (refer Q2 pg 95), ductworks, connections, supports, insulation. Normally involve in water plumbing, air conditioning ductworks, chemical gas pipes in hospital, fuel pipes

R ELECTRICAL INSTALLATIONS

Electrical works: wiring, fittings, trunking, cabling etc

S FLOOR, WALL & CEILING FINISHES

Architectural works: finishes (i.e. wall tiles, slabs, ceiling boards, carpetting

T GLAZING Works associated with glass (i.e. window & door glass)

U PAINTING & DECORATING

Works associated with painting works, decorating works (wall papers)

V DRAINAGE Works associated with constructing drain (including excavations) laying pipe, connections and testing

W FENCING, TURFING

Landscaping works, fencing and plantings


SECTION A – GENERAL RULESA1 – introduction

A2 – Bills of Quantities

A3 – Measurement

A4 – Description

A5 – Drawn Information

A6 – Standard Products

A7 – Quantities

A8 – Provisional Sums & Prime Cost Sum

A9 – Works in Special Conditions

INTRODUCTION

Objective of Site Clearance Preparing the site for construction activities

INTRODUCTION

WORKS INVOLVED IN SITE PREPARATION / CLEARANCE Cutting of trees Removing the tree stumps Removing the hedges Removing the shrubs and bushes Removing & Relocating the turf or grass Removing & Relocating the topsoil

INTRODUCTION : SITE CLEARANCE

Hedges

Shrubs

Groundcovers & topsoil

Trees

INTRODUCTION

Cutting of Trees & Removing of stump

INTRODUCTION

Removing Hedges , Shrubs & Bushes

INTRODUCTION

Does the Site Ready for Construction?

INTRODUCTION

Removing of Topsoil

INTRODUCTION

Plant & Machinery Used

Excavator

Bull Dozer

INTRODUCTION

Plant & Machinery Used

Backhoe Loader

MEASUREMENT : SMM 2 CLAUSESECTION D : EXCAVATION AND

EARTHWORKD2 – Removing hedgesD3 – Clearing undergrowthD4 – Removing treesD5 – Tree stumpsD6 – Lifting turfD7 – TopsoilD8 – Alternative method of measurement

MEASUREMENT : ALTERNATIVE A

MEASUREMENT RULES : D2

Section D2 Cutting & Grubbing of hedges and their

roots Include the disposal Measured in linear meter (m) State the nature / height & location


Example

SITE

20000

2000

0

Measurement:

Total Length = 20000 + 20000 = 40000

= 40.00m

MEA

SU

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: D

2

JOB: ELEMENT: SLIP NO:

AQS 1100

Excavation & Earthwork 1

HEADING:

SITE PREPARATION

DESCRIPTION: UNIT:

Clearing site of hibiscus hedges average 1.00m high and grubbing up their roots

m

QTY:

40

SQD: Total Length = 20000 + 20000

40.00 = 40000 40.00 CHK SQD:

RED:

CHK RED:

RATE:

TOTAL COST 40.00

Side Cast


Section D3 Clearing of undergrowth / bushes / shrubs Include the disposal Measure in meter square (m2)


Example20000

2000

0

Measurement:

Total Area = 20000 x 20000 = 40.00m2


AQS 1100


HEADING:

SITE PREPARATION

DESCRIPTION: UNIT:

Clearing site of undergrowth, bushes, shrub & the like & grubbing up their roots

m2

QTY:

40

SQD: Length

20.00 20000 20.00 CHK SQD: 400.00 Width

20000 RED:

CHK RED:

RATE:

TOTAL COST 400.00 M

EA

SU

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3


Section D4 Cutting down trees and grubbing their roots Include disposal Measured in numbers (No) Classified in stages of 300mm girth

(measured at 1.00m from the ground Filling of void if necessaryNotes: Girth – the measurement around the middle of

something

(i.e. circumference / perimeter)


Classified in stages of 300mm girth

1.00


Example

G = 280

G = 100

G = 500

Measurement:

Total No n.e. 300mm = 2 no

Total No 300mm – 600mm = 1 no


AQS 1100


HEADING:

SITE PREPARATION

DESCRIPTION: UNIT:

Cutting down trees & grubbing up their roots & filling voids left by removal of roots with material arising from excavation

Not Exceeding 300mm girth at 1.00m above ground level

No

QTY:

2

SQD:

CHK SQD: 2

2 RED:

CHK RED:

RATE:

TOTAL COST 2 M

EA

SU

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4


AQS 1100

Excavation & earthwork 4

HEADING:

SITE PREPARATION

DESCRIPTION: UNIT:

Cutting down trees & grubbing up their roots & filling voids left by removal of roots with material arising from excavation

Exceeding 300mm & not exceeding 600mm girth ditto

No

QTY:

1

SQD:

CHK SQD: 1

1 RED:

CHK RED:

RATE:

TOTAL COST 1 M

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: D

4

MEA

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5


AQS 1100


HEADING:

SITE PREPARATION

DESCRIPTION: UNIT:

Removing existing tree stumps and grubbing up their roots and filling voids left by removal of roots with material arising from excavation not exceeding 300mm girth at 1.00m above ground level

No

QTY:

1

SQD:

CHK SQD: 1

1 RED:

CHK RED:

RATE:

TOTAL COST 1

MEASUREMENT : ALTERNATIVE B


Section D 8 Cutting of trees, removal of stump and

all clearance of undergrowth, shrubs, hedges & bushes are given as item.

Describing the total area affected in the description area.


000

20000

Measurement:

Total Area = 20000 x 20000 = 40.00m2


AQS 1100


HEADING:

SITE PREPARATION

DESCRIPTION: UNIT:

Cutting down trees & clearing site of undergrowth, bushes, scrub and hedges & grubbing up their roots & filling voids left by removal of roots with selected material arising from excavation (in 40m2)

Item

QTY:

SQD:

Item CHK SQD:

RED:

CHK RED:

RATE:

TOTAL COST

M

EA

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8

HOW TO START?

HOW TO START?

Proposed construction project site

GUIDELINES TO TAKING-OFF

1. Check the scale of the drawing2. Check the sufficiency of the data

provided (i.e. sizes, annotation, specification)

3. Prepare taking off list4. Prepare table to indicate various stages

or sizes of items5. Prepare Query List (if required)6. Indicate page numbers in every slip sort

sheet

Taking Off List Indicate a list of items to be measured

from the drawing Follow the sequence of work State the clauses in the SMM 2 and unit

of measurement

GUIDELINES TO TAKING-OFF

GU

IDELI

NES

: T

.O.

LIS

T


AQS 1100


HEADING:

TAKING OFF LIST

DESCRIPTION: UNIT:

QTY:

SQD: Item Unit SMM

1. Clearing Undergrowth m2 D3 CHK SQD: 2. Cutting down trees

n.e. 300mm girth No D4 RED:

3. Ditto exceeding 300mm

& n.e. 600mm girth No D4 CHK RED:

4. Cutting down hedges No D5 RATE:

TOTAL COST

THANK YOU

Week 6 - Site Clearance

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