Paper Title:
Studies on Influence of Tunnel Surrounding Rock Stability Analysis Based on Material Yield Criterions
  Abstract

Numerical simulation is one of main methods for tunnel surrounding rock stability analysis. By now, there hasn’t be unanimous view on that what kind of yield criterion is adopted for different surrounding rock class and different buried depth. Mohr-Coulomb yield criterion is always adopted abroad, Drucker-Prager yield criterion is always adopted in China, moreover, the principles are different when adopting D-P yield criterion at home and abroad. Based on introducing the Mohr-Coulomb yield criterion and D-P yield criterions, this paper uses the M-C exterior angle point of circle criteria, which is popular in the international arena for the D-P yield criterion, and finds parameters of geotechnical material for D-P yield criterions through the parameter transformation. Combining with 3D elastic-plastic finite element simulation of the tunnel construction process, with the tunnel buried by soft and weak surrounding rock (V class) at shallow (15m) and deep (550m), this paper analyzes the impact of the M-C and D-P yield criterions on surrounding rock’s displacement, stress, strain effects, and proposes the appropriate yield criterion for the simulation of shallow and deep soft and weak rock tunnel construction and for tunnel surrounding rock stability analysis.

  Info
Periodical
Edited by
Xuejun Zhou
Pages
501-507
DOI
10.4028/www.scientific.net/AMM.90-93.501
Citation
M. K. Huang, X. G. Jin, Y. Wang, L. Zhu, "Studies on Influence of Tunnel Surrounding Rock Stability Analysis Based on Material Yield Criterions", Applied Mechanics and Materials, Vols. 90-93, pp. 501-507, 2011
Online since
September 2011
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