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Kinematics and stability analysis method of rock blocks considering finite discontinuity persistence

  • Geotechnical Engineering
  • Published:
KSCE Journal of Civil Engineering Aims and scope

Abstract

In this paper, a new kinematics and stability analysis method of rock blocks considering finite discontinuity persistence is poposed as a stability evaluation method in excavations. The 3D rock block identification considering finite discontinuity persistence is performed using discontinuity disk model. The kinematics and stability analyses of removable rock blocks formed by the identification method are performed. The new analysis method can handle convex and concave shaped blocks. The kinematics and stability analysis method of rock blocks considering finite discontinuity persistence consists of the following major steps: (1) Three-dimensional discontinuous rock mass modeling, (2) Identification of two-dimensional loops, (3) Identification of three-dimensio nal loops, (4) Finalization of block shape and volume, and (5) Kinematics and stability analysis of removable rock blocks. In order to illustrate the applicability of the new kinematics and stability analysis method of rock blocks considering finite discontinuit y persistence, two analysis example problems were carried out. This study presents the example problems for a convex shaped block and a concave shaped block. The comparisons and investigations with the analytical results have confirmed the effectiveness and usefulness of this new kinematics and stability analysis method of rock blocks proposed as a stability evaluation method in excavations.

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  1. Geoscience Research Laboratory, Japan

    Jae-Yun Hwang (Member)

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  1. Jae-Yun Hwang
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Correspondence to Jae-Yun Hwang.

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Hwang, JY. Kinematics and stability analysis method of rock blocks considering finite discontinuity persistence. KSCE J Civ Eng 8, 397–402 (2004). https://doi.org/10.1007/BF02829163

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  • DOI: https://doi.org/10.1007/BF02829163

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