[KSCI] Korea Science Citation Index Service

A study on the In-situ Stress Measurement of Anisotropic Rocks by Leeman Method - An Experimental and Numerical Simulation on Transversely Isotropic Rock

민기복 (스웨덴 왕립공과대학)
이정인 (서울대학교 공과대학 지구환경시스템공학부)
최해문 (삼성물산 건설부문 기술연구소)

Publication Information

Tunnel and Underground Space / v.12, no.4, 2002 , pp. 237-247 More about this Journal

Abstract

A total of 18 stress measurements were performed in the rock and rock-like blocks in the laboratory to estimate the influence of anisotropy in rock. Full scale overcoring equipment, which consists of a coring machine and a biaxial loading system by flat jacks, was developed to simulate the in-situ rock stress condition in the laboratory By comparing the isotropic analysis with the anisotropic analysis in measuring the stress, conclusions have been drawn as to the influence of anisotropy. The maximum difference between the isotropic and the anisotropic analysis was 34% and it was shown that the stress measurement considering the anisotropy was needed. To confirm the validity of the observed data, a diagnostic analysis of stress relief curve by overcoring was conducted using the three dimensional finite difference program, FLAC 3D.

Keywords

In-situ Stress; Anisotropy; Transversely Isotropic; Stress Relief Curve;

Citations & Related Records

Times Cited By KSCI : 2 (Citation Analysis)

Reference
Cited By KSCI

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