Fault instability induced by ice melting in fractured rock

This study aims to investigate the mechanism of slip failure on a melting fracture filled with quartz layer in granite when rising in temperature. The triaxial shear test is conducted using the MTS Test System with a low temperature controller to simulate ice melting in cold regions due to climate c...

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Main Author: Sia, Wennie Su Siam
Other Authors: Wu Wei
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2021
Subjects:
Online Access:https://hdl.handle.net/10356/149205
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1492052021-05-17T02:44:54Z Fault instability induced by ice melting in fractured rock Sia, Wennie Su Siam Wu Wei School of Civil and Environmental Engineering wu.wei@ntu.edu.sg Engineering::Civil engineering This study aims to investigate the mechanism of slip failure on a melting fracture filled with quartz layer in granite when rising in temperature. The triaxial shear test is conducted using the MTS Test System with a low temperature controller to simulate ice melting in cold regions due to climate change. The results show the temperature rise can reduce the friction angle and the coefficient of internal friction which is based on the Mohr Coulomb failure criterion. Meanwhile, this explains that no change in shear stress would let the shear displacement going up when the temperature rises as it boosts the melting rate. Concurrently, the shear strength declines due to a reduction in the coefficient of friction. In this manner, climate change can affect the slope stability because of ice melting in rock fractures in cold regions. A deeper sense of the failure mechanism and slip characteristics of the fracture aids in the alleviation of climate change impact. Bachelor of Engineering (Civil) 2021-05-17T02:44:54Z 2021-05-17T02:44:54Z 2021 Final Year Project (FYP) Sia, W. S. S. (2021). Fault instability induced by ice melting in fractured rock. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/149205 https://hdl.handle.net/10356/149205 en GE-16 application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Civil engineering
spellingShingle Engineering::Civil engineering
Sia, Wennie Su Siam
Fault instability induced by ice melting in fractured rock
description This study aims to investigate the mechanism of slip failure on a melting fracture filled with quartz layer in granite when rising in temperature. The triaxial shear test is conducted using the MTS Test System with a low temperature controller to simulate ice melting in cold regions due to climate change. The results show the temperature rise can reduce the friction angle and the coefficient of internal friction which is based on the Mohr Coulomb failure criterion. Meanwhile, this explains that no change in shear stress would let the shear displacement going up when the temperature rises as it boosts the melting rate. Concurrently, the shear strength declines due to a reduction in the coefficient of friction. In this manner, climate change can affect the slope stability because of ice melting in rock fractures in cold regions. A deeper sense of the failure mechanism and slip characteristics of the fracture aids in the alleviation of climate change impact.
author2 Wu Wei
author_facet Wu Wei
Sia, Wennie Su Siam
format Final Year Project
author Sia, Wennie Su Siam
author_sort Sia, Wennie Su Siam
title Fault instability induced by ice melting in fractured rock
title_short Fault instability induced by ice melting in fractured rock
title_full Fault instability induced by ice melting in fractured rock
title_fullStr Fault instability induced by ice melting in fractured rock
title_full_unstemmed Fault instability induced by ice melting in fractured rock
title_sort fault instability induced by ice melting in fractured rock
publisher Nanyang Technological University
publishDate 2021
url https://hdl.handle.net/10356/149205
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