Study of rock slope analysis methods

Pao Yue-kong Library Electronic Theses Database

Study of rock slope analysis methods

 

Author: Ngai, Wai-bun
Title: Study of rock slope analysis methods
Degree: M.Sc.
Year: 1998
Subject: Rock slopes -- China -- Hong Kong -- Case studies
Slopes (Soil mechanics) -- China -- Hong Kong -- Case studies
Hong Kong Polytechnic University -- Dissertations
Department: Multi-disciplinary Studies
Dept. of Civil and Structural Engineering
Pages: 101, [147] leaves : ill. ; 30 cm
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b1446530
URI: http://theses.lib.polyu.edu.hk/handle/200/2034
Abstract: The applicability of Hoek & Bray's methods, Sarma's method and Goodman & Shi's method for rock slope analysis are demonstrated in this dissertation project. Well documented case studies are used to reveal the differences of analysis results among these three methods. All cases presented in this project are practical real cases in Hong Kong. On account of the developer's / properties owner's privacy, the exact locations of the sites and slopes are not mentioned in the content of this report. The background theories, assumptions and limitations of Hoek & Bray's method, Goodman & Shi's method and Sarma's method are to be discussed in this report. The original rock slope analysis method employed by Hoek & Bray (1974) is based on the Markland's (1972) test on stereographic projection of the rock joints and slope. Subsequent modifications had been made by Golder Associates (1974) and Goodman & Bray (1976) to propose the "Daylight" and "Toppling" envelopes on polar stereographic projection respectively. Since then, this modified Hoek & Bray's method, which depends on stereo-graphical plotting of planes of joint sets, are widely accepted and used by practicing geotechnical Engineers in Hong Kong for rock slope engineering. Practically, the "Daylight" / "Toppling" envelope for the slope is determined by computer software in stereo-graphical projection and then kinematic analysis is performed for any joint set and/or wedge projected inside the envelopes . The modified Hoek & Bray's method will be discussed in this dissertation project but not the original proposed by Hoek & Bray (1974).

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