An integrated modelling and numerical simulation for rock mass assessment in underground mines

Hao Lu, Zhouquan Luo, Moe Momayez

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

Abstract

The accurate shape and position of cavities in an underground mine are important factors that could affect the reliability of numerical modeling analysis used to assess the stability of such structures. The traditional numerical stability analysis of underground mine openings either considers the cavity shape as a regular geometric object, which is determined during the design phase, or uses a simple model created for analysis purposes, both of which affect the accuracy of numerical simulation results. In this paper, a cavity monitoring system (CMS) survey is carried out to obtain the actual three-dimensional shape and the true position of mining excavations. The 3D digital terrain model (DTM) of the suite of mining cavities is then created in the mine design software Surpac. A new and integrated approach to determine the stability of the underground cavity based on the DTM and FLAC models is presented. A case study conducted in an underground copper mine confirms the efficiency and reliability of the proposed method.

Original languageEnglish (US)
Title of host publicationTunneling and Underground Construction - Selected Papers from the Proceedings of the 2014 GeoShanghai International Congress
PublisherAmerican Society of Civil Engineers (ASCE)
Pages759-768
Number of pages10
Edition242 GSP
ISBN (Print)9780784413449
DOIs
StatePublished - Jan 1 2014
Event2014 GeoShanghai International Congress: Tunneling and Underground Construction - Shanghai, China
Duration: May 26 2014May 28 2014

Publication series

NameGeotechnical Special Publication
Number242 GSP
ISSN (Print)0895-0563

Other

Other2014 GeoShanghai International Congress: Tunneling and Underground Construction
CountryChina
CityShanghai
Period5/26/145/28/14

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Lu, H., Luo, Z., & Momayez, M. (2014). An integrated modelling and numerical simulation for rock mass assessment in underground mines. In Tunneling and Underground Construction - Selected Papers from the Proceedings of the 2014 GeoShanghai International Congress (242 GSP ed., pp. 759-768). (Geotechnical Special Publication; No. 242 GSP). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784413449.074