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Modeling of rockbolts in three-dimensional discontinuous deformation analysis
Jiang Qinghui1 , Feng Dingxiang2
(1 College of Water Couservancy and Hydropower Engineering,
Wuhan 430 0 72 China)
(2,Institute of Rock and Soil Mechanics , The Chinese Academy of Sciences,
Wuhan 43 0 0 71 China)

Abstract Based  on three-dimensional DDA method, a simple three-dimension model was proposed to analyze rockbolting and the corresponding algorithm and formulas were given. The calculation example of the tunnel excavated shows that the model has a good reflection of the reinforcing effects of rockbolts in the longitudinal direction.
Key words: jointed rockmass; 3-D discontinuous deformation analysis; bolt

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4A Model of Point-to-Face Contact for Three-Dimensional Discontinuous Deformation Analysis

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