›› 2005, Vol. 26 ›› Issue (8): 1318-1322.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on stability of talus slope in front of a dam in a huge hydroelectric station by using 3D numerical simulation

ZHU Ji-liang, HUANG Run-qiu   

  1. National Laboratory of Geo-hazards Prevention and Geo-environment Protection , Chengdu University of Technology, Chengdu 610059, China
  • Received:2004-07-05 Online:2005-08-10 Published:2013-12-26

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Abstract: The stability of the talus slope is important to its construction and operation. We draw a conclusion on site that it is a incised gully collapsing talus slope that are consisted of bedrock and unconsolidated deposit. There are evidence close up and turn around between the elevations of 1 360－1 450 m, the elevations of elevation which are contributed to its stability. The data that by using 3D numerical simulation (3D-Sigma and 3D-Flac) show that ⑴Stress field of the talus slope is main weight field, its stresses distributes is mainly controlled by lithology; ⑵ Latent sliding surface is the interface of talus and the bedrock and above it in some height. ⑶ The displacement is toward to limit surface; and the displacement of the middle-front part of the talus slope is large; ⑷ The front zone’s close up improves stress state and raises the stability of talus slope; ⑸ It is wholly stable, but it maybe occurs middle-superficial layer failure between the elevations of 1 472－1 610 m .

Key words: hydroelectric station, talus slope, 3D numerical simulation, stability

CLC Number: 

  • TV 74
  • 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.
  • 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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