Stability analysis of toppling slope using the extended NMM

Guangqi Chen, Fusong Fan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The original numerical manifold method (NMM) is extended for stability analysis of a toppling slope with complex sliding surface and cohesion and tensile strengths existing in discontinuities. The extended NMM is shown effective by reproducing a centrifuge test. With NMM simulation, the commonly used Goodman and Bray's analytical method is shown adaptable to a toppling slope model with a simple sliding surface without cohesion and tensile strengths in the discontinuities. It is shown that the deformation of the sliding body has no significant effect on the result. The relationship between dip angle and critical friction angle is investigated. A real toppling slope is simulated and the necessary cohesion and friction angle are verified.

Original languageEnglish
Title of host publication50th US Rock Mechanics / Geomechanics Symposium 2016
PublisherAmerican Rock Mechanics Association (ARMA)
Pages1344-1349
Number of pages6
ISBN (Electronic)9781510828025
Publication statusPublished - Jan 1 2016
Event50th US Rock Mechanics / Geomechanics Symposium 2016 - Houston, United States
Duration: Jun 26 2016Jun 29 2016

Publication series

Name50th US Rock Mechanics / Geomechanics Symposium 2016
Volume2

Other

Other50th US Rock Mechanics / Geomechanics Symposium 2016
CountryUnited States
CityHouston
Period6/26/166/29/16

All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology
  • Geophysics

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