Slope stability assessment using modified d-slope method of western part of Sandakan, Sabah

Slope stability assessment using modified D-Slope method is been conducted on five (5) rock slopes from Sandakan, Sabah. D-slope method comprises of G-Rating determination and Potential Instability. G-Rating includes 17 parameters of field observation and laboratory analysis to assess the slope cond...

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Main Authors: Hennie Fitria Wulandary Soehady Erfen, Amirul Adlie Mohd Rosli
Format: Article
Language:English
English
Published: Zibeline International Publishing 2020
Subjects:
Online Access:https://eprints.ums.edu.my/id/eprint/27580/1/Slope%20stability%20assessment%20using%20modified%20d-slope%20method%20of%20western%20part%20of%20Sandakan%2C%20Sabah.pdf
https://eprints.ums.edu.my/id/eprint/27580/2/Slope%20stability%20assessment%20using%20modified%20d-slope%20method%20of%20western%20part%20of%20Sandakan%2C%20Sabah1.pdf
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author Hennie Fitria Wulandary Soehady Erfen
Amirul Adlie Mohd Rosli
author_facet Hennie Fitria Wulandary Soehady Erfen
Amirul Adlie Mohd Rosli
author_sort Hennie Fitria Wulandary Soehady Erfen
collection UMS
description Slope stability assessment using modified D-Slope method is been conducted on five (5) rock slopes from Sandakan, Sabah. D-slope method comprises of G-Rating determination and Potential Instability. G-Rating includes 17 parameters of field observation and laboratory analysis to assess the slope condition. Kinematic analysis is used for Potential Instability analysis to determine the type of failures for each slope. This later is to determine the level of slope’s risk: No Risk, Low Risk, Moderate Risk or High Risk. Based on the results of G-Rating, only slope C1 and C2 have value more than 0.4 while other slopes have less than 0.4 which indicates stable slopes. Based on kinematic analysis, slope C1 and C3 experienced wedge failures, slope C4 with toppling failure, slope C5 with wedge/planar failures and no failure shown for slope C2. D-slope analysis indicates that slope C1 is considered as Low Risk with mitigation suggestions of stream system inspection and vegetation on exposed area of the slopes, while other slopes (C2, C3, C4 and C5) have no suggestion for mitigation as been assessed as No Risk.
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spelling ums.eprints-275802021-07-01T14:20:01Z https://eprints.ums.edu.my/id/eprint/27580/ Slope stability assessment using modified d-slope method of western part of Sandakan, Sabah Hennie Fitria Wulandary Soehady Erfen Amirul Adlie Mohd Rosli Q Science (General) QE Geology Slope stability assessment using modified D-Slope method is been conducted on five (5) rock slopes from Sandakan, Sabah. D-slope method comprises of G-Rating determination and Potential Instability. G-Rating includes 17 parameters of field observation and laboratory analysis to assess the slope condition. Kinematic analysis is used for Potential Instability analysis to determine the type of failures for each slope. This later is to determine the level of slope’s risk: No Risk, Low Risk, Moderate Risk or High Risk. Based on the results of G-Rating, only slope C1 and C2 have value more than 0.4 while other slopes have less than 0.4 which indicates stable slopes. Based on kinematic analysis, slope C1 and C3 experienced wedge failures, slope C4 with toppling failure, slope C5 with wedge/planar failures and no failure shown for slope C2. D-slope analysis indicates that slope C1 is considered as Low Risk with mitigation suggestions of stream system inspection and vegetation on exposed area of the slopes, while other slopes (C2, C3, C4 and C5) have no suggestion for mitigation as been assessed as No Risk. Zibeline International Publishing 2020 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/27580/1/Slope%20stability%20assessment%20using%20modified%20d-slope%20method%20of%20western%20part%20of%20Sandakan%2C%20Sabah.pdf text en https://eprints.ums.edu.my/id/eprint/27580/2/Slope%20stability%20assessment%20using%20modified%20d-slope%20method%20of%20western%20part%20of%20Sandakan%2C%20Sabah1.pdf Hennie Fitria Wulandary Soehady Erfen and Amirul Adlie Mohd Rosli (2020) Slope stability assessment using modified d-slope method of western part of Sandakan, Sabah. Geological Behavior (GBR), 14 (1). pp. 13-17. ISSN 2521-0491 https://geologicalbehavior.com/archives/1gbr2020/1gbr2020-13-17.pdf
spellingShingle Q Science (General)
QE Geology
Hennie Fitria Wulandary Soehady Erfen
Amirul Adlie Mohd Rosli
Slope stability assessment using modified d-slope method of western part of Sandakan, Sabah
title Slope stability assessment using modified d-slope method of western part of Sandakan, Sabah
title_full Slope stability assessment using modified d-slope method of western part of Sandakan, Sabah
title_fullStr Slope stability assessment using modified d-slope method of western part of Sandakan, Sabah
title_full_unstemmed Slope stability assessment using modified d-slope method of western part of Sandakan, Sabah
title_short Slope stability assessment using modified d-slope method of western part of Sandakan, Sabah
title_sort slope stability assessment using modified d slope method of western part of sandakan sabah
topic Q Science (General)
QE Geology
url https://eprints.ums.edu.my/id/eprint/27580/1/Slope%20stability%20assessment%20using%20modified%20d-slope%20method%20of%20western%20part%20of%20Sandakan%2C%20Sabah.pdf
https://eprints.ums.edu.my/id/eprint/27580/2/Slope%20stability%20assessment%20using%20modified%20d-slope%20method%20of%20western%20part%20of%20Sandakan%2C%20Sabah1.pdf
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