Experimental investigation on slope runoff, sediment, and hydraulic parameters under different underlying surface

This study utilizes a rainfall simulator to conduct an experimental investigation of slope and rainfall on various underlying surfaces. This study aimed to determine the relationship between various hydraulic factors and sediment concentration by estimating runoff, sediment concentration generation,...

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Main Authors: Siti Norhafizah Hamizak, Zuliziana Suif, Jestin Jelani, Nordila Ahmad, Muhammad Izzul Akhtar
Format: Article
Language:English
Published: Universitas Mercu Buana 2025-01-01
Series:Jurnal Ilmiah SINERGI
Subjects:
Online Access:https://publikasi.mercubuana.ac.id/index.php/sinergi/article/view/30503
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author Siti Norhafizah Hamizak
Zuliziana Suif
Jestin Jelani
Nordila Ahmad
Muhammad Izzul Akhtar
author_facet Siti Norhafizah Hamizak
Zuliziana Suif
Jestin Jelani
Nordila Ahmad
Muhammad Izzul Akhtar
author_sort Siti Norhafizah Hamizak
collection DOAJ
description This study utilizes a rainfall simulator to conduct an experimental investigation of slope and rainfall on various underlying surfaces. This study aimed to determine the relationship between various hydraulic factors and sediment concentration by estimating runoff, sediment concentration generation, and hydraulic parameters on various underlying surfaces. The flow velocity, flow depth, shear stress, and unit stream power are the hydraulic parameters in this experiment. The soil sample will be set up appropriately in the rainfall simulator with a slope of 20º and subjected to a rainfall event for two hours on four trays with various underlying surface types. The rainfall intensity of 10 Lmin⁻¹ was designated for the rainfall simulator. Throughout a two-hour period, the runoff flow was collected at intervals of 30, 60, 90, and 120 minutes. The measured sediment concentration using Total Suspended Solid (TSS). Then measurements were conducted of the sediment concentration, runoff discharge, and hydraulic parameters. According to the results, the stream power of the four covers is higher for the dried leaves (0.004606 ms-3), grass cover (0.003274 ms-3), gravel (0.00232 ms-³), and bare soil cover (0.00081 ms-³). But bare soil produces the maximum concentration of sediment and surface runoff, which is then followed by grass, gravel, and leaves. In general, the generation of sediment began with the bare surface, gravel, dry leaves, and grass in descending sequence. Research has shown that rain-induced plant cover can be used as a low-cost strategy to reduce soil erosion on construction slope sites.
format Article
id doaj-art-2115c8961bcc43f7bbc07c1d2b27a20f
institution Kabale University
issn 1410-2331
2460-1217
language English
publishDate 2025-01-01
publisher Universitas Mercu Buana
record_format Article
series Jurnal Ilmiah SINERGI
spelling doaj-art-2115c8961bcc43f7bbc07c1d2b27a20f2025-01-13T04:38:19ZengUniversitas Mercu BuanaJurnal Ilmiah SINERGI1410-23312460-12172025-01-0129125125810.22441/sinergi.2025.1.0237935Experimental investigation on slope runoff, sediment, and hydraulic parameters under different underlying surfaceSiti Norhafizah Hamizak0Zuliziana Suif1Jestin Jelani2Nordila Ahmad3Muhammad Izzul Akhtar4Department of Civil Engineering, Faculty of Engineering, National Defence University of MalaysiaDepartment of Civil Engineering, Faculty of Engineering, National Defence University of MalaysiaDepartment of Civil Engineering, Faculty of Engineering, National Defence University of MalaysiaDepartment of Civil Engineering, Faculty of Engineering, National Defence University of MalaysiaMinistry of DefenceThis study utilizes a rainfall simulator to conduct an experimental investigation of slope and rainfall on various underlying surfaces. This study aimed to determine the relationship between various hydraulic factors and sediment concentration by estimating runoff, sediment concentration generation, and hydraulic parameters on various underlying surfaces. The flow velocity, flow depth, shear stress, and unit stream power are the hydraulic parameters in this experiment. The soil sample will be set up appropriately in the rainfall simulator with a slope of 20º and subjected to a rainfall event for two hours on four trays with various underlying surface types. The rainfall intensity of 10 Lmin⁻¹ was designated for the rainfall simulator. Throughout a two-hour period, the runoff flow was collected at intervals of 30, 60, 90, and 120 minutes. The measured sediment concentration using Total Suspended Solid (TSS). Then measurements were conducted of the sediment concentration, runoff discharge, and hydraulic parameters. According to the results, the stream power of the four covers is higher for the dried leaves (0.004606 ms-3), grass cover (0.003274 ms-3), gravel (0.00232 ms-³), and bare soil cover (0.00081 ms-³). But bare soil produces the maximum concentration of sediment and surface runoff, which is then followed by grass, gravel, and leaves. In general, the generation of sediment began with the bare surface, gravel, dry leaves, and grass in descending sequence. Research has shown that rain-induced plant cover can be used as a low-cost strategy to reduce soil erosion on construction slope sites.https://publikasi.mercubuana.ac.id/index.php/sinergi/article/view/30503rainfallrunoffsediment concentrationslopeunderlying surface
spellingShingle Siti Norhafizah Hamizak
Zuliziana Suif
Jestin Jelani
Nordila Ahmad
Muhammad Izzul Akhtar
Experimental investigation on slope runoff, sediment, and hydraulic parameters under different underlying surface
Jurnal Ilmiah SINERGI
rainfall
runoff
sediment concentration
slope
underlying surface
title Experimental investigation on slope runoff, sediment, and hydraulic parameters under different underlying surface
title_full Experimental investigation on slope runoff, sediment, and hydraulic parameters under different underlying surface
title_fullStr Experimental investigation on slope runoff, sediment, and hydraulic parameters under different underlying surface
title_full_unstemmed Experimental investigation on slope runoff, sediment, and hydraulic parameters under different underlying surface
title_short Experimental investigation on slope runoff, sediment, and hydraulic parameters under different underlying surface
title_sort experimental investigation on slope runoff sediment and hydraulic parameters under different underlying surface
topic rainfall
runoff
sediment concentration
slope
underlying surface
url https://publikasi.mercubuana.ac.id/index.php/sinergi/article/view/30503
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AT zulizianasuif experimentalinvestigationonsloperunoffsedimentandhydraulicparametersunderdifferentunderlyingsurface
AT jestinjelani experimentalinvestigationonsloperunoffsedimentandhydraulicparametersunderdifferentunderlyingsurface
AT nordilaahmad experimentalinvestigationonsloperunoffsedimentandhydraulicparametersunderdifferentunderlyingsurface
AT muhammadizzulakhtar experimentalinvestigationonsloperunoffsedimentandhydraulicparametersunderdifferentunderlyingsurface