ROCK MASS CLASSIFICATION SYSTEMS AND KINEMATIC ANALYSIS OF SLATES FROM DIR GROUP, NW, HIMALAYA, PAKISTAN; IMPLICATION FOR SLOPE STABILITY

Aftab Ur Rahman (), Zhang Guangcheng, Asghar Khan, Mohit Kumar Puniya, Sami Ur Rahman and Zeng Xin
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Aftab Ur Rahman: School of Engineering, China University of Geosciences, Wuhan 430074, China
Zhang Guangcheng: School of Engineering, China University of Geosciences, Wuhan 430074, China
Asghar Khan: Shaheed Benazir Bhutto University Shiringal Dir (Upper), Khyber-Pakhtunkhwa, Pakistan
Mohit Kumar Puniya: National Geotechnical Facility, Survey of India, Dehradun, Uttarakhand, India
Sami Ur Rahman: Shaheed Benazir Bhutto University Shiringal Dir (Upper), Khyber-Pakhtunkhwa, Pakistan
Zeng Xin: School of Engineering, China University of Geosciences, Wuhan 430074, China

Geological Behavior (GBR), 2022, vol. 6, issue 2, 61-67

Abstract: Slope stability is an important issue for the construction of roads on hill slopes. 24 slopes cuts have been investigated to determine the slope instability issues and mode of failure along the newly constructed road of Dir-Sheringal Khyber-Pakhtunkhwa, Pakistan. The major rocks are slates and tuffaceous siltstone which are weak to moderately strong in strength. The main objective of this study is to assess the application of rock mass classification systems and kinematic analysis which affects the slopes. The investigation shows that rock mass rating (RMR-basic), and slope mass rating (SMR) values range from 0 to 73 which is poor to normal while geological strength index (GSI) analysis classified the rock mass from poor to good conditions. The Kinematic analysis shows that three types (plane, wedge and topple) of failure mode are present in these slopes. Most of the slopes are unstable and weak where perspective tools and proper installation provide support and prevent future failure. This study shows a good relationship between RMR-basic, SMR, and GSI for different locations.

Keywords: Slope; Kinematic Analysis; Stability RMR; SMR; GSI; Failure mechanism (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:zib:zbngbr:v:6:y:2022:i:2:p:61-67

DOI: 10.26480/gbr.02.2022.61.67

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