An-Najah National University Faculty Of Engineering Department Of Civil Engineering
An-Najah National University Engineering College Civil Engineering Department
description
Transcript of An-Najah National University Engineering College Civil Engineering Department
![Page 1: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/1.jpg)
1
An-Najah National UniversityEngineering College
Civil Engineering Department
Project title :Management of stormwater for a portion of Faisal street “Nablus” by
StormCAD
Prepared by: Azzam Husain As'ous Ahmad Abed-Alrahman Abed-Alrahman Masimi
Supervisor : Dr. Mohammad N. Almasri
Jan-2013
![Page 2: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/2.jpg)
2
Introduction The natural situation is to have rainfall. If this
rain falls on the roofs and reached the streets, it becomes runoff.
If this runoff does not have a drainage network, it will lead to many serious problems. So it is necessary to end this problem and to develop solutions.
Jan-2013
![Page 3: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/3.jpg)
3
Objectives • To quantify the maximum stormwater flow rate
for the study area • To hydraulically simulate the existing stormwater
collection system• To develop management options that suit study
area from engineering point view . • To evaluate the effectiveness of the proposed
management options in solving stormwater problems using StormCAD .
Jan-2013
![Page 4: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/4.jpg)
4
The Study area • The study area that was chosen is located in the north-eastern
part of the City of Nablus and is very close to the City Center. The problem of stormwater appears extensively and exists clearly in Faisal Street.
• Faisal Street is of great importance for the main traffic, since it connects the east and west of the City and is an arterial street and is considered essential. It passes through the City Center and thus considered to have an economic importance.
Jan-2013
![Page 5: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/5.jpg)
5
Study area
Contribution area
Residential rocky area
Faisal street
Pavement
Jan-2013
![Page 6: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/6.jpg)
6
1- problem in water drainage
Existing problems
Jan-2013
![Page 7: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/7.jpg)
7
2- No Activities for Maintenance and/or Cleaning
Jan-2013
![Page 8: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/8.jpg)
8
The result
Jan-2013
![Page 9: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/9.jpg)
3- In sufficient number of catch basins: the current number of catch basin can not handle with amount of stormwater.
4- pipe size: exist pipe size ( 20 in ) very small to accommodate the amount of stormwater.
![Page 10: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/10.jpg)
10
Methodology
Understanding the problem
Selection of the study area
Data collection Development of StormCAD
model
Propose a set of solutions to the problem
Validation of solutions
Conclusions and Recommendations
Jan-2013
![Page 11: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/11.jpg)
11
System analysis 1- Hydraulics of stormwater collection system a) Rational method
Q= CIA
b) Manning equation
Jan-2013
![Page 12: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/12.jpg)
12
2- StormCAD
a) Inlets
b) Catchments
c) Conduits
Jan-2013
![Page 13: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/13.jpg)
13
Inlet
• Inlets are structures that convey storm water from the surface into a drainage system.
Jan-2013
![Page 14: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/14.jpg)
14
Inlet type
Combination
Grate
slottedJan-2013
![Page 15: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/15.jpg)
15
Catchment
• Associated with each catch basin there is catchment over which rainfall becomes storm water .
• Key include Area , runoff, time concentration
Jan-2013
![Page 16: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/16.jpg)
16
Conduit
• Diameter • Length• Slope• Material • Number of pipe
Jan-2013
![Page 17: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/17.jpg)
17
Model calibration 1- After understanding every parameter that the program need we
started the process of calibration
2- Match between the real case and the model output
3- Alter certain parameters of the model and run the model and extract the results
Jan-2013
![Page 18: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/18.jpg)
18
First shot The profile that was extracted
Jan-2013
![Page 19: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/19.jpg)
19
The profile that appeared does not make sense for the real case that seen in the study area.
So more understanding of the parameters that have effective impact on model output
The most parameter that have effective impact Runoff coefficient( C )
Jan-2013
![Page 20: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/20.jpg)
20
When finding that the value of C must be low we revisited the study area and found that there are few depressions that impact the generation of stormwater
Jan-2013
![Page 21: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/21.jpg)
• In addition, the rocks of the study area are oriented in away that obstructs the stormwater
Jan-2013 21
![Page 22: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/22.jpg)
22
3- output exist situation
a) Profile b) Velocity c) Flow rate and relation with pipe capacity
Jan-2013
![Page 23: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/23.jpg)
23
Profile
Jan-2013
![Page 24: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/24.jpg)
24
Velocity
Jan-2013
![Page 25: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/25.jpg)
25
Flow rate and relation with pipe capacity
Jan-2013
![Page 26: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/26.jpg)
26
Management options
Option 1
the purpose of this option is to suggest an increase in the flow capacity of the pipe by changing the diameter
Jan-2013
![Page 27: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/27.jpg)
27
Main pipe line
Jan-2013
![Page 28: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/28.jpg)
28
Profile after applying option 1
Jan-2013
![Page 29: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/29.jpg)
29
Management options
Option 2
the idea of this proposed option is to prevent a part of this huge amount of stormwater from entering the system by changing the direction of part the stormwater at a specific location
Jan-2013
![Page 30: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/30.jpg)
30
How ???• By changing the slope of the street and making
a gutter at the street curb • adding a slotted inlet in the street to catch the
stormwater and drain through a subsurface pipe
Jan-2013
![Page 31: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/31.jpg)
31
Two locations under this management option were specified.
Jan-2013
![Page 32: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/32.jpg)
32
Location 1Change the direction of the water that accumulate
from the shaded area.
Jan-2013
![Page 33: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/33.jpg)
33
profile after applying option 2 location # 1
Jan-2013
![Page 34: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/34.jpg)
34
Location 2Change the percent of the stormwater that
accumulates in the street into another area to decrease the amount of flow
Jan-2013
![Page 35: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/35.jpg)
35
profile that occurs after applied thediverge on the location #2
Jan-2013
![Page 36: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/36.jpg)
36
Table summarizes the maximum characteristics for the current situation,
option 1, and option 2
Jan-2013
![Page 37: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/37.jpg)
37
Conclusions and Recommendations
• The use of a sewer with a diameter of 20
inches is not effective in combined stormwater and sewer collection systems for the study area.
• Time of concentration (tc) and rational coefficient (C) have a significant impact on the maximum rate of stormwater.
Jan-2013
![Page 38: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/38.jpg)
38
• The management of stormwater problem in the study area must be part of an overall integrated management plan. This plan must consider a larger area compared to our study area. So solving the problems in our study area will be in the expense of creating new problems to nearby areas.
Jan-2013
![Page 39: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/39.jpg)
39
Recommendations• Nablus Municipality should consider the
development of an integrated management plan for stormwater for larger areas in order to effectively solve such a problem.
• Change the diameter of the sewer in the network from 20 to 26 inches in order to solve the existing problems.
Jan-2013
![Page 40: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/40.jpg)
40
• Diversion of a percent of stormwater at the specific locations to decrease the amount of the stormwater that enters the network.
• Make a full maintenance for all network elements and change the damaged ones. This should be carried out prior to the winter season.
Jan-2013
![Page 41: An-Najah National University Engineering College Civil Engineering Department](https://reader030.fdocuments.net/reader030/viewer/2022033020/5681615d550346895dd0e959/html5/thumbnails/41.jpg)
41Jan-2013