›› 2006, Vol. 27 ›› Issue (12): 2127-2132.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

3DEC modeling of equivalent mechanical parameters in anchored jointed rock mass

CHENG Dong-xing1, PAN Wei1, LIU Da-an1, FEN Shu-rong2, GUO Hua-feng1, DING En-bao1   

  1. 1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China; 2. Central South Institute for Design and Survey of Hydroelectric Projects, State Power Co., Changsha 410014, China
  • Received:2005-01-11 Online:2006-12-11 Published:2013-12-09

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Abstract: Jointed rock mass is an important study object of engineering slope. The mechanical features of anchored jointed rock mass are studied by numerical modeling (3DEC). Taking the anchors of left bank slope of Longtan Hydropower Station in Guangxi Autonomous Region for example, the equivalent mechanical parameters of anchored jointed rock mass in the slope are deduced. Uniaxial compression test and direct shear test of rock as well as direct shear test of joint are performed by numerical modeling. The errors of results are analyzed and amended. The equivalent mechanical parameters of anchored jointed rock mass are determined that the deformation modulus, friction angle and cohesion of rock as well as friction angle of joint are the same as before while the cohesion of joint is enhanced from 50kPa to 122kPa. The final conclusions accord with the results of actual physics test. The feasibility and reliability that using numerical modeling to carry out these rock mechanics tests are verified.

Key words: jointed rock mass, equivalent mechanical parameters, three dimensional distinct element method, 3DEC, numerical modeling

CLC Number: 

  • TU 455
  • 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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