›› 2004, Vol. 25 ›› Issue (7): 1122-1126.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on fissures network of jointed rock masses in one section of Three Gorges Reservoir

RONG Guan1, ZHOU Chuang-bing1, ZHU Huan-chun1, LIU You-rong2   

  1. 1. School of Water Resources and Hydropower, Wuhan University, Wuhan 430072, China; 2. Engineering Faculty, China University of Geosciences, Wuhan 430074, China
  • Received:2003-05-06 Online:2004-07-09 Published:2014-07-18

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Abstract: In order to rationally evaluate engineering properties of rock masses in one section of the Three Gorges Reservoir and provide method for harnessing geological hazards, the probable patterns of discontinuities were calculated and joints network were simulated with the aid of the Monte-Carlo method on basis of surveying data of discontinuities. Some technical improvement were proposed. There are cluster analysis for classing discontinuity groups, direct method to form joint random numbers, calculation of generalized RQDt and line connection rate. According to surveyed and simulated results, there are 3 sets preponderant discontinuities in research section, and the average trace length is about 1.45m, line density of discontinuities is 3－6 sets every metre. when t = 0.10 m and 0.70m, the value of RQDt is 90 % and 10 % － 20 % respectively, and the varying of RQDt along different orientations will affect stability of bank slope.

Key words: Three Gorges Reservoir, fissure, simulation, RQD, connection rate

CLC Number: 

  • TU452
  • 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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