›› 2006, Vol. 27 ›› Issue (S1): 691-696.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Evaluation of rock slope stability in stage excavation process by using strength reduction FEM

JIANG Xue-liang1, 2, CAO Ping1   

  1. 1.School of Resources and Safety Engineering, Central South University, Changsha 410083, China) (2.School of Civil Engineering, Hunan City University, Yiyang 413000, China
  • Received:2006-05-25 Published:2006-12-15

Abstract: The simulation of stage excavation of the high slope of Chang-Zhang Expressway is carried out by using two-dimensional elastoplastic finite element method, considering the influence of blasting and rock joint. The rock mass’s deformation, stresses and yielding state in the excavation process are analyzed respectively.The integral safety of the high slope is discussed by using the method of lowing material’s strength safety factor and in light of the yielding rate of the slope’s rock mass element and variation of displacements of the key parts. Through researching the important slope K123, a conclusion that the slopes are stable in construction process, is drawn.

Key words: rock slope, simulation of stage excavation, elastoplastic finite elements, stability analysis, strength reduction FEM

CLC Number: 

  • TU 45
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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