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Development of a percolating sand trap for urban drainage

LEONG, BAN SAN (2007) Development of a percolating sand trap for urban drainage. Universiti Teknologi PETRONAS. (Unpublished)

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Development of a percolating sand trap for urban drainage was attempted in this project. Sand traps in University Teknologi Petronas campus were chosen for the initial observation. From the observation, most of the sand traps were trapping sand and water. Some become mosquito breeding ground. Larvae were found in the water retained by sand traps. Several tests were conducted in this project on soils particle size, laboratory permeability test, percolation test on field and percolation test with different water table. The result of the experiment indicated that the mining sand has 0.02 cm/s hydraulic conductivity. Loamy sand from Seri Iskandar area has 0.000 158cm/s hydraulic conductivity and sandy loam from UTP new academic building area has 0.000103 cm/s hydraulic conductivity. A prototype · sand trap used for field percolation test for each location was able to percolate retained water within three days. ·From the results, different sizes of opening from the trap do not affect much to the percolation rate. The percolation rate was affected by soil moisture content and level of water table. Water of recharge or rainfall percolate through opening below prototype was cause to the underground soil moisture content and water table increase. This percolation reduces with lower hydraulic gradient during water table increased. An improvement in design of the percolating sand trap has to modify to fulfill the site condition of high water table area. It is necessary to determine site water table level and hydraulic conductivity before application of percolating sand trap. The procedure appears promising for field use following prototype using appropriate boundary and initial conditions and field testing.

Item Type: Final Year Project
Academic Subject : Academic Department - Civil Engineering - Structures, materials and construction
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Engineering > Civil
Depositing User: Users 2053 not found.
Date Deposited: 24 Oct 2013 14:42
Last Modified: 25 Jan 2017 09:45
URI: http://utpedia.utp.edu.my/id/eprint/9790

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