Design of a Stormwater Collection Network for Part of Anabta Town
No Thumbnail Available
Date
2019
Authors
Ahmad Quzmar
Ahmad Sabobeh
Haitham Estetieh
Omar Al-Qadah
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
It is an undisputed fact that water is the pillar of life. Water on the surface of oceans
evaporates, ascends to the upper layers of the atmosphere until it condenses to form clouds,
which keep moving, and finally falls back as rain, snow or hail in what is known as the Water
Cycle.
The combination of pure rainwater and anything carried by the rain in urban areas is called
stormwater.
Combined sewers are predominant in Palestine. These sewers sometimes cease to take more
sewage in and because of that floods occur creating many losses in lives or properties. For
instance, in our study area in Anabta, an incident happened in 2013 where two ladies died
after a flood happened in a heavy rainy day that went for too long.
The purpose from this project is to design a stormwater collection network for part of Anabta
depending on rainfall readings, which is implicitly represented in an IDF curve, to avoid any
more losses. The approach in this project was based on the use of Bentley SewerGEMS,
ESRI ArcGIS and MS Excel to develop a reality-simulating model.
The model consists mainly of three elements. The catchment, where 85 catchments were
drawn, taking into account the elevations, so that the water is drained to the lowest point in
the catchment, at which the catch basin was placed. The rational coefficient, time of
concentration and the area were calculated for each catchment, and the catch basins were
connected together by conduits.
The output of the model was that we came to a design that appears in conduits and their
diameters, and catch basins and their dimensions.
In addition, we enhanced our results with two profiles, some conclusions and proposals to
decision makers.