Stability Analysis Of Construction Design Reservoir Slopes Based On Numerical Simulation At Ulu Jelai Hydroelectric Dam Project, Cameron Highland, Pahang, Malaysia

A slope stability study alongside the right bank rim of Susu Dam reservoir was conducted to analyse the stability of the reservoir slopes. The factors of safety (FOS) under the loadings of steady-state seepage and transient seepage condition were determined by using Finite Element Method-Shear Stren...

Full description

Saved in:

Bibliographic Details
Main Author:	Md. Yusof, Nur Qurrahtin A’ini
Format:	Thesis
Language:	English
Published:	2019
Subjects:	T Technology
Online Access:	http://eprints.usm.my/48407/1/Stability%20Analysis%20Of%20Construction%20Design%20Reservoir%20Slopes%20Based%20On%20Numerical%20Simulation%20At%20Ulu%20Jelai%20Hydroelectric%20Dam%20Project%2C%20Cameron%20Highland%2C%20Pahang%2C%20Malaysia.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-usm-ep.48407
record_format	uketd_dc
spelling	my-usm-ep.484072021-11-17T03:42:10Z Stability Analysis Of Construction Design Reservoir Slopes Based On Numerical Simulation At Ulu Jelai Hydroelectric Dam Project, Cameron Highland, Pahang, Malaysia 2019-12-01 Md. Yusof, Nur Qurrahtin A’ini T Technology TA401-492 Materials of engineering and construction. Mechanics of materials A slope stability study alongside the right bank rim of Susu Dam reservoir was conducted to analyse the stability of the reservoir slopes. The factors of safety (FOS) under the loadings of steady-state seepage and transient seepage condition were determined by using Finite Element Method-Shear Strength Reduction (FEM SSR). A total of fourteen slopes have been analysed in this study. Only a slope A1-A2 is analysed under transient seepage since it is a critical slope which is near to dam. The analysis of stability was conducted based on desk study, geological condition and geotechnical properties. A RS2 9.0 program was used to conduct the analysis of reservoir slope under various loading based on geotechnical data obtained. Based on the FOS of steady-state seepage analysis of the slopes under normal condition, it can be concluded that slopes are safe and stable since most of the determined FOS are beyond minimum FOS 1.5. However, the FOS of some of the slope under flood condition is below minimum FOS of 1.5. Meanwhile, the FOS of the slopes under drawdown condition was beyond minimum FOS of 1.2. Thus, the slopes are also considered stable. Based on transient seepage analysis, the slope was analysed under different hydraulic conductivity of the soil slope with different drawdown rates. Slope A1-A2 was failed under drawdown rates of 2 m/d with hydraulic conductivity of 1x10-6 m/s since the rate of decreases in the reservoir water level is greater than hydraulic conductivity. Therefore, sensitivity of the water level to the stability of the slope should be given more attention and prediction of worst groundwater condition is necessary. A regular maintenance of subsurface drainage system is required to prevent reduction of efficiency caused by siltation, deterioration of seals or growth of vegetation blocking the outlet. 2019-12 Thesis http://eprints.usm.my/48407/ http://eprints.usm.my/48407/1/Stability%20Analysis%20Of%20Construction%20Design%20Reservoir%20Slopes%20Based%20On%20Numerical%20Simulation%20At%20Ulu%20Jelai%20Hydroelectric%20Dam%20Project%2C%20Cameron%20Highland%2C%20Pahang%2C%20Malaysia.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Bahan & Sumber Mineral
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	T Technology T Technology
spellingShingle	T Technology T Technology Md. Yusof, Nur Qurrahtin A’ini Stability Analysis Of Construction Design Reservoir Slopes Based On Numerical Simulation At Ulu Jelai Hydroelectric Dam Project, Cameron Highland, Pahang, Malaysia
description	A slope stability study alongside the right bank rim of Susu Dam reservoir was conducted to analyse the stability of the reservoir slopes. The factors of safety (FOS) under the loadings of steady-state seepage and transient seepage condition were determined by using Finite Element Method-Shear Strength Reduction (FEM SSR). A total of fourteen slopes have been analysed in this study. Only a slope A1-A2 is analysed under transient seepage since it is a critical slope which is near to dam. The analysis of stability was conducted based on desk study, geological condition and geotechnical properties. A RS2 9.0 program was used to conduct the analysis of reservoir slope under various loading based on geotechnical data obtained. Based on the FOS of steady-state seepage analysis of the slopes under normal condition, it can be concluded that slopes are safe and stable since most of the determined FOS are beyond minimum FOS 1.5. However, the FOS of some of the slope under flood condition is below minimum FOS of 1.5. Meanwhile, the FOS of the slopes under drawdown condition was beyond minimum FOS of 1.2. Thus, the slopes are also considered stable. Based on transient seepage analysis, the slope was analysed under different hydraulic conductivity of the soil slope with different drawdown rates. Slope A1-A2 was failed under drawdown rates of 2 m/d with hydraulic conductivity of 1x10-6 m/s since the rate of decreases in the reservoir water level is greater than hydraulic conductivity. Therefore, sensitivity of the water level to the stability of the slope should be given more attention and prediction of worst groundwater condition is necessary. A regular maintenance of subsurface drainage system is required to prevent reduction of efficiency caused by siltation, deterioration of seals or growth of vegetation blocking the outlet.
format	Thesis
qualification_level	Master's degree
author	Md. Yusof, Nur Qurrahtin A’ini
author_facet	Md. Yusof, Nur Qurrahtin A’ini
author_sort	Md. Yusof, Nur Qurrahtin A’ini
title	Stability Analysis Of Construction Design Reservoir Slopes Based On Numerical Simulation At Ulu Jelai Hydroelectric Dam Project, Cameron Highland, Pahang, Malaysia
title_short	Stability Analysis Of Construction Design Reservoir Slopes Based On Numerical Simulation At Ulu Jelai Hydroelectric Dam Project, Cameron Highland, Pahang, Malaysia
title_full	Stability Analysis Of Construction Design Reservoir Slopes Based On Numerical Simulation At Ulu Jelai Hydroelectric Dam Project, Cameron Highland, Pahang, Malaysia
title_fullStr	Stability Analysis Of Construction Design Reservoir Slopes Based On Numerical Simulation At Ulu Jelai Hydroelectric Dam Project, Cameron Highland, Pahang, Malaysia
title_full_unstemmed	Stability Analysis Of Construction Design Reservoir Slopes Based On Numerical Simulation At Ulu Jelai Hydroelectric Dam Project, Cameron Highland, Pahang, Malaysia
title_sort	stability analysis of construction design reservoir slopes based on numerical simulation at ulu jelai hydroelectric dam project, cameron highland, pahang, malaysia
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Bahan & Sumber Mineral
publishDate	2019
url	http://eprints.usm.my/48407/1/Stability%20Analysis%20Of%20Construction%20Design%20Reservoir%20Slopes%20Based%20On%20Numerical%20Simulation%20At%20Ulu%20Jelai%20Hydroelectric%20Dam%20Project%2C%20Cameron%20Highland%2C%20Pahang%2C%20Malaysia.pdf
_version_	1747821930133585920

Stability Analysis Of Construction Design Reservoir Slopes Based On Numerical Simulation At Ulu Jelai Hydroelectric Dam Project, Cameron Highland, Pahang, Malaysia

Similar Items