Soil Engineering and Foundation

Soil Engineering and Foundation ›› 2021, Vol. 35 ›› Issue (3): 347-351.

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Stability Analysis of Highway Weathered Rock Slope Based on FLAC3D

SU Yang1, Qin Xiaoyu1, LIU Zhikui1, DAI Xinghai2   

  1. (1.College of Civil and Architectural Engineering, Guilin University of Technology, Guilin 541000;
    2.CCCC Ecological Environmental Protection Design and Research Institute Co. Ltd., Tianjin 300457)
  • Received:2020-04-09 Revised:2020-05-15 Online:2021-06-25 Published:2021-06-26

Abstract: The stability of a granite slope is analyzed by the FLAC3D numerical simulation software. The target slope was selected from the slope group on the east side of the great outer ring road in Fenghuang Community, Guangming New District, Shenzhen. Based on the Mohr Coulomb yield criterion, it is assumed that the cohesion and internal friction angle are reduced by different reduction factors, and the actual structure is simulated by adjusting the three-dimensional mesh element. A representative cross-section 8-8IJK as analyzed with the resultant safety factor of 1.21, which was less than the required factor of safety. Therefore, it is necessary to recommend a reasonable slope control plan, which could provide a useful reference for engineering technicians to prevent and control slope instability.

Key words: FlAC3D Slope Stability, Numerical Simulation, Slope Stability Factor of Safety, Ground Anchoring

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