›› 2008, Vol. 29 ›› Issue (5): 1425-1429.

• Geotechnical Engineering • Previous Articles     Next Articles

Study on stability and reinforcement measures of an unstable rock masses of Xiluodu Hydropower station

HUANG Da1, HUANG Run-qiu2, PEI Xiang-jun2, LIU Wei-hua2   

  1. 1. College of Civil Engineering, Chongqing University, Chongqing 400045, China; 2. State Key Laboratory of Geological Hazard Prevention and Geoenvirronment Protection, Chengdu University of Technology, Chengdu 610059, China
  • Received:2006-04-14 Online:2008-05-10 Published:2013-07-24

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Abstract: Based on investigation on spot and geological analysis, an unstable rock masses of Xiloudu Hydropower Station may to be failure through two modes: shear-falling and rip-topple is proposed; and a mechanical model for calculation of stability by limit equilibrium theory is established; and the unstable rock masses deformation and failure characteristics are analyzed by numerical simulation. The results show: stability of the unstable rock masses is relatively bad if the failure mode is rip- topple , but is good if shear-falling. Based on stability analysis, the anchor reinforcement force is calculated as 12 306 kN when safety factor is 1.5 and the failure is rip-topple; and some reinforcement measures of the unstable rock masses are put for ward follows: fill hollow of rock and fill in cracks and prestressed anchor cables and anchor bolts combination reinforcement. The results of numerical simulation show that: effect of the reinforcement measures is better.

Key words: unstable rock masses, limit equilibrium theory, stability, numerical simulation, reinforcement

CLC Number: 

  • TU 457
  • 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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