Effects of Weak Layer Angle and Thickness on the Stability of Rock Slopes
This paper researches two key factors (angle and thickness) of a weak layer in relation to their influencing mechanism on slope stability. It puts forward the sliding surface angle and morphological model criteria for the control of rock slopes and realization of its failure mechanism. By comparing...
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University of Tehran
2016-06-01
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doaj-697c010715c243fe8dfa2e153022b8832020-11-25T00:46:51ZengUniversity of TehranInternational Journal of Mining and Geo-Engineering2345-69302345-69492016-06-015019711057859Effects of Weak Layer Angle and Thickness on the Stability of Rock SlopesGarmondyu Crusoe Jr0Qing-xiang Cai1Ji-sen Shu2Liu Han3Yamah Barvor4China University of Mining and TechnologyChina University of Mining and TechnologyDepartment of Surface mining and slope Engineering China University of Mining and TechnologyChina University of Mining and TechnologyChina University of Mining and TechnologyThis paper researches two key factors (angle and thickness) of a weak layer in relation to their influencing mechanism on slope stability. It puts forward the sliding surface angle and morphological model criteria for the control of rock slopes and realization of its failure mechanism. By comparing the Failure Modes and Safety Factors (Fs) obtained from numerical analysis, the influence pattern for the weak layer angle and thickness on the stability of rock slopes is established. The result shows that the weak layer angle influences the slope by validating the existence of the “interlocking” situation. It also illustrates that as the angle of the weak layer increases, the Fs unceasingly decreases with an Fs transformation angle. The transformation interval of the Fs demonstrates the law of diminishing of a quadratic function. Analysis of the weak layer thickness on the influence pattern of slope stability reveals three decrease stages in the Fs values. The result also shows that the increase in the thickness of the weak layer increases the failure zone and influences the mode of failure. Given the theoretical and numerical analysis of a weak layer effects on the stability of rock slopes, this work provides a guiding role in understanding the influence of a weak layer on the failure modes and safety factors of rock slopes.http://ijmge.ut.ac.ir/article_57859_181594d3878221f3a9129ab245ebe18b.pdfSlope StabilitySafety FactorsFailure ModesWeak Layer |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Garmondyu Crusoe Jr Qing-xiang Cai Ji-sen Shu Liu Han Yamah Barvor |
spellingShingle |
Garmondyu Crusoe Jr Qing-xiang Cai Ji-sen Shu Liu Han Yamah Barvor Effects of Weak Layer Angle and Thickness on the Stability of Rock Slopes International Journal of Mining and Geo-Engineering Slope Stability Safety Factors Failure Modes Weak Layer |
author_facet |
Garmondyu Crusoe Jr Qing-xiang Cai Ji-sen Shu Liu Han Yamah Barvor |
author_sort |
Garmondyu Crusoe Jr |
title |
Effects of Weak Layer Angle and Thickness on the Stability of Rock Slopes |
title_short |
Effects of Weak Layer Angle and Thickness on the Stability of Rock Slopes |
title_full |
Effects of Weak Layer Angle and Thickness on the Stability of Rock Slopes |
title_fullStr |
Effects of Weak Layer Angle and Thickness on the Stability of Rock Slopes |
title_full_unstemmed |
Effects of Weak Layer Angle and Thickness on the Stability of Rock Slopes |
title_sort |
effects of weak layer angle and thickness on the stability of rock slopes |
publisher |
University of Tehran |
series |
International Journal of Mining and Geo-Engineering |
issn |
2345-6930 2345-6949 |
publishDate |
2016-06-01 |
description |
This paper researches two key factors (angle and thickness) of a weak layer in relation to their influencing mechanism on slope stability. It puts forward the sliding surface angle and morphological model criteria for the control of rock slopes and realization of its failure mechanism. By comparing the Failure Modes and Safety Factors (Fs) obtained from numerical analysis, the influence pattern for the weak layer angle and thickness on the stability of rock slopes is established. The result shows that the weak layer angle influences the slope by validating the existence of the “interlocking” situation. It also illustrates that as the angle of the weak layer increases, the Fs unceasingly decreases with an Fs transformation angle. The transformation interval of the Fs demonstrates the law of diminishing of a quadratic function. Analysis of the weak layer thickness on the influence pattern of slope stability reveals three decrease stages in the Fs values. The result also shows that the increase in the thickness of the weak layer increases the failure zone and influences the mode of failure. Given the theoretical and numerical analysis of a weak layer effects on the stability of rock slopes, this work provides a guiding role in understanding the influence of a weak layer on the failure modes and safety factors of rock slopes. |
topic |
Slope Stability Safety Factors Failure Modes Weak Layer |
url |
http://ijmge.ut.ac.ir/article_57859_181594d3878221f3a9129ab245ebe18b.pdf |
work_keys_str_mv |
AT garmondyucrusoejr effectsofweaklayerangleandthicknessonthestabilityofrockslopes AT qingxiangcai effectsofweaklayerangleandthicknessonthestabilityofrockslopes AT jisenshu effectsofweaklayerangleandthicknessonthestabilityofrockslopes AT liuhan effectsofweaklayerangleandthicknessonthestabilityofrockslopes AT yamahbarvor effectsofweaklayerangleandthicknessonthestabilityofrockslopes |
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