A Study On The Effect Of Extreme Rainfall Intensity On Slope Stabilty Using Physical Based Modelling

This study focused on assessing the effect of extreme rainfall intensity to slope stability using a physical based modelling. In this study, identified extreme rainfall intensity are modelled in a physical model with a measurement of Volumetric Water Content and Matric Suction within the slope. Sele...

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Main Author: Zaki, Muhammad Hazwan
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2019
Subjects:
Online Access:http://eprints.usm.my/58713/1/A%20Study%20On%20The%20Effect%20Of%20Extreme%20Rainfall%20Intensity%20On%20Slope%20Stabilty%20Using%20Physical%20Based%20Modelling.pdf
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author Zaki, Muhammad Hazwan
author_facet Zaki, Muhammad Hazwan
author_sort Zaki, Muhammad Hazwan
collection USM
description This study focused on assessing the effect of extreme rainfall intensity to slope stability using a physical based modelling. In this study, identified extreme rainfall intensity are modelled in a physical model with a measurement of Volumetric Water Content and Matric Suction within the slope. Selected extreme rainfall intensity is 60 mm/hr which the heaviest hourly rainfall intensity at Sarawak on 3rd of January, 2016 and 80 mm/hr which in Penang on 10th October, 2016. The simulation is conducted in a 4 different cases and parameter. The duration of the simulated rainfall is 6-hour. The overall trend of the matric suction measurement in each cases is increasing with a few exceptions of tensiometer that shows decreasing value. After the rain simulation stopped, the matric suction decreased rapidly and remain stagnant follow by a significant dropping significantly. For the volumetric water content, there is a similar increase in the trend during the rainfall simulation. However, there is difference in term of initial and increment of water content for different part of the slope. for the lower part of the slope, the initial water content is much higher which at 60 – 70 % with an increment of 15 – 20 % uring the rainfall simulation. While for the lower part are at 20 -25 % with a slight increment of 5-7 % during rainfall simulation. For all cases the failure had been occurred but on a different time and volume of mass wasting. It shows that the increased in slope inclination angle and rainfall intensity would affect the slope stability. Numerical analysis is done to model the cases in Geostudio software.
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spelling usm.eprints-587132023-05-28T04:44:33Z http://eprints.usm.my/58713/ A Study On The Effect Of Extreme Rainfall Intensity On Slope Stabilty Using Physical Based Modelling Zaki, Muhammad Hazwan T Technology TA Engineering (General). Civil engineering (General) This study focused on assessing the effect of extreme rainfall intensity to slope stability using a physical based modelling. In this study, identified extreme rainfall intensity are modelled in a physical model with a measurement of Volumetric Water Content and Matric Suction within the slope. Selected extreme rainfall intensity is 60 mm/hr which the heaviest hourly rainfall intensity at Sarawak on 3rd of January, 2016 and 80 mm/hr which in Penang on 10th October, 2016. The simulation is conducted in a 4 different cases and parameter. The duration of the simulated rainfall is 6-hour. The overall trend of the matric suction measurement in each cases is increasing with a few exceptions of tensiometer that shows decreasing value. After the rain simulation stopped, the matric suction decreased rapidly and remain stagnant follow by a significant dropping significantly. For the volumetric water content, there is a similar increase in the trend during the rainfall simulation. However, there is difference in term of initial and increment of water content for different part of the slope. for the lower part of the slope, the initial water content is much higher which at 60 – 70 % with an increment of 15 – 20 % uring the rainfall simulation. While for the lower part are at 20 -25 % with a slight increment of 5-7 % during rainfall simulation. For all cases the failure had been occurred but on a different time and volume of mass wasting. It shows that the increased in slope inclination angle and rainfall intensity would affect the slope stability. Numerical analysis is done to model the cases in Geostudio software. Universiti Sains Malaysia 2019-05-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/58713/1/A%20Study%20On%20The%20Effect%20Of%20Extreme%20Rainfall%20Intensity%20On%20Slope%20Stabilty%20Using%20Physical%20Based%20Modelling.pdf Zaki, Muhammad Hazwan (2019) A Study On The Effect Of Extreme Rainfall Intensity On Slope Stabilty Using Physical Based Modelling. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Awam. (Submitted)
spellingShingle T Technology
TA Engineering (General). Civil engineering (General)
Zaki, Muhammad Hazwan
A Study On The Effect Of Extreme Rainfall Intensity On Slope Stabilty Using Physical Based Modelling
title A Study On The Effect Of Extreme Rainfall Intensity On Slope Stabilty Using Physical Based Modelling
title_full A Study On The Effect Of Extreme Rainfall Intensity On Slope Stabilty Using Physical Based Modelling
title_fullStr A Study On The Effect Of Extreme Rainfall Intensity On Slope Stabilty Using Physical Based Modelling
title_full_unstemmed A Study On The Effect Of Extreme Rainfall Intensity On Slope Stabilty Using Physical Based Modelling
title_short A Study On The Effect Of Extreme Rainfall Intensity On Slope Stabilty Using Physical Based Modelling
title_sort study on the effect of extreme rainfall intensity on slope stabilty using physical based modelling
topic T Technology
TA Engineering (General). Civil engineering (General)
url http://eprints.usm.my/58713/1/A%20Study%20On%20The%20Effect%20Of%20Extreme%20Rainfall%20Intensity%20On%20Slope%20Stabilty%20Using%20Physical%20Based%20Modelling.pdf
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AT zakimuhammadhazwan studyontheeffectofextremerainfallintensityonslopestabiltyusingphysicalbasedmodelling