Surface settlement due to deep mining with the Numerical Manifold Method

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

Abstract

This paper examines the expected settlement at the ground surface due to circular cavities in layered rock. We begin with two verifications of the Numerical Manifold Method (NMM): 1. the case of an infinite plate with a circular cavity (Kirsch solution). 2. The case of a layered plate subjected to gravity but with no cavity. This set of verification experiments allows us to proceed safely with exploration of boundary effects on the computed surface settlement.We show that due to an elastic rebound, total surface settlement decreases with increasing distance between the lower boundary of the model and the center of the cavity.

Original languageEnglish
Title of host publicationHarmonising Rock Engineering and the Environment - Proceedings of the 12th ISRM International Congress on Rock Mechanics
Pages1593-1595
Number of pages3
StatePublished - 13 Feb 2012
Event12th International Congress on Rock Mechanics of the International Society for Rock Mechanics, ISRM 2011 - Beijing, China
Duration: 18 Oct 201121 Oct 2011

Conference

Conference12th International Congress on Rock Mechanics of the International Society for Rock Mechanics, ISRM 2011
Country/TerritoryChina
CityBeijing
Period18/10/1121/10/11

Keywords

  • Mine design
  • Numerical modelling

ASJC Scopus subject areas

  • Geology
  • Geotechnical Engineering and Engineering Geology

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