›› 2005, Vol. 26 ›› Issue (S1): 255-259.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Stability analysis and systematic anchorage for spillway excavated slope of Nuozhadu dam project

ZHANG Fa-ming1 , PANG Zhen-jiang1 , CHEN Zu-yu2 , JIA Zhi-xin2 , WANG Xiao-gang2   

  1. 1. Geology Department, Hohai University, Nanjing 210098, China; 2. China Institute of Water Resources and Hydropower Research, Beijing 100044, China
  • Received:2005-01-21 Published:2005-12-15

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Abstract: Nuozhadu dam project is situated in Yunnan province in China, it is the important project in Lanchangjiang river development. The stability of excavated slope of the spillway is the major problem in dam construction. Based on field investigation of the structure of the slope, more than 1400 joints were collected, then, by using the Monte-Carlo simulation method and GSI method, the persistence of the joints and the shear strength index of the slope rock mass were calculated. Furthermore, according to the simulated annealing method, the sliding surface of the slope was determined, the stability of the slope was calculated via improved two dimensional Sarma’s limit equilibrium method. Finally, the method to improve the slope stability was suggested.

Key words: high slope, joint network, simulated annealing method, limit equilibrium, systematic anchorage

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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