Sensitivity Analysis of the Influences of Rock Mechanical Parameters on the Deformation of Underground Caverns

Fang Fang Chen; Zhi Qiang Zhang; Ning Li

doi:10.4028/www.scientific.net/AMM.275-277.262

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 275-277Sensitivity Analysis of the Influences of Rock...

Sensitivity Analysis of the Influences of Rock Mechanical Parameters on the Deformation of Underground Caverns

Abstract:

The Main factors affecting the stability of underground caverns are selected, including the rock mechanical parameters (elastic modulus, Poisson ratio, cohesion and internal friction angle) and initial ground stress parameter (lateral pressure coefficient). Numerical test method is adopted to analyze each parameter’s sensitivity to surrounding rock displacement. Sensitivity formula making each values comparable is established. The sensitivity distribution laws are obtained, and then each parameter’s quantitative effect on displacement is discussed. This work has prominent guiding significance to engineering designs.

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Periodical:

Applied Mechanics and Materials (Volumes 275-277)

Pages:

262-268

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.275-277.262

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Online since:

January 2013

Authors:

Fang Fang Chen, Zhi Qiang Zhang, Ning Li

Keywords:

Displacement, Mechanical Parameters of Surrounding Rock, Numerical Test, Sensitivity Analysis

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