3-D numerical analysis for the prediction of discontinuity zone ahead of tunnel face

In Mo Lee, D. H. Kim

Research output: Contribution to conferencePaper

Abstract

Rock mass has many discontinuities and irregular initial stress conditions due to various geophysical and geological activities. Because the underground structure has many unreliable factors in design stage, it is required to predict discontinuities ahead of tunnel face during tunnel construction. By monitoring and analyzing 3-dimensional absolute displacement during tunnel excavation, it is possible to predict discontinuity zones ahead of tunnel face. This paper presents results of the analysis of 3-dimensional displacement obtained from 3-dimensional numerical simulations used for assessing the effect of discontinuity zones on monitoring data. The influence of fault zones, cavities, and in situ initial stress on the 3-dimensional tunnel movement is evaluated.

Original languageEnglish
Pages199-201
Number of pages3
Publication statusPublished - 1999 Jan 1
Event9th International Society for Rock Mechanics Congress, ISRM 1999 - Paris, France
Duration: 1999 Aug 251999 Aug 28

Conference

Conference9th International Society for Rock Mechanics Congress, ISRM 1999
CountryFrance
CityParis
Period99/8/2599/8/28

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ASJC Scopus subject areas

  • Geology
  • Geotechnical Engineering and Engineering Geology

Cite this

Lee, I. M., & Kim, D. H. (1999). 3-D numerical analysis for the prediction of discontinuity zone ahead of tunnel face. 199-201. Paper presented at 9th International Society for Rock Mechanics Congress, ISRM 1999, Paris, France.