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The efficiency of a depressed gully inlet of a Malaysian drain

The efficiency of a depressed gully inlet of a Malaysian drain / Mohamad Zulhilmi Farouk
Kajian ini dijalankan untuk mengkaji kesan lekukan dan kecekapan pengairan galur di Malaysia. Galur direka untuk mengumpul air saliran hujan sebelum ia disalirkan ke sistem saliran peparitan. Kebiasaanya, reka bentuk galur adalah kecil, tegak dan sering diletakkan bersebelahan dengan jalan raya dan persimpangan jalan. Objektif pertama bagi kajian ini adalah untuk menentukan prestasi hidraulik sistem galur melalui reka bentuk, kecerunan dan aliran yang berbeza. Objektif kedua ialah untuk menentukan kadar ketinggian air bagi sistem galur yang berbeza . Oleh itu, dalam skala penuh satu model fizikal terdiri daripada pelantar ujian dengan tangki masuk dan tangki kelaur di kedua-dua hujung pelantar telah direka untuk menggambarkan interaksi hidraulik antara di atas dan di bawah Sistem perparitan tanah melalui galur dan kawasan tadahan. Dalam kajian ini mempunyai tiga keadaan sistem galur yang pertengahan dan penuh. Keadaan pertengahan adalah suatu keadaan, yang membolehkan sebahagian daripada menghampiri dalam aliran ke aliran melepasi sistem ke dalam galur yang seterusnya, manakala bagi keadaan penuh terdapat sejumlah besar tiada mana-mana aliran melalui. Ujian ini juga dijalankan dalam beberapa bentuk kecerunan untuk menunjukan keadaan berbeza di jalan raya _______________________________________________________________________________________________________ This study was conducted to study the effect of depression on the efficiency of a gully inlet of a Malaysian drain. Stormwater inlets or gullies are designed to collect rainfall runoff before it is drained into a storm drainage system. Usually, the design of gullies is small, vertical and often placed next to street curbs and road intersections. The objective of this study is to determine the efficiency on the hydraulic performance of a gully system with different longitudinal bed slope and cross slope under different flow conditions in order to determine the head-discharge relationship of the grates used. Therefore, a full scale physical model comprising of a testing platform with an inlet tank and an outlet tank on both ends of the platform has been designed to reflect the hydraulic interaction of the gully inlets and the designated catchment area. In this study, two types of systems were tested which were intermediate and terminal. The intermediate condition is a condition, which allows some of the approaching flow to flow past the system into the next downstream gully, while for the terminal condition there is no any significant amount of flow to pass through. The results obtained from the tests are presented in the form of head-discharge relationship and the efficiency of the grates were established.
Contributor(s):
Muhamad Zulhilmi Farouk - Author
Primary Item Type:
Final Year Project
Identifiers:
Barcode : 00003106677
Accession Number : 875006800
Language:
English
Subject Keywords:
effect of depression; gully inlet; Stormwater
First presented to the public:
6/1/2017
Original Publication Date:
3/22/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Civil Engineering
Citation:
Extents:
Number of Pages - 69
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-03-22 12:41:14.194
Date Last Updated
2020-06-05 14:32:27.067
Submitter:
Mohd Jasnizam Mohd Salleh

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