ANALYSIS OF THE EFFECT OF JOINTS ON ROCKMASS STRENGTH
In a rock mass, mechanical deformations will mainly occur as normal and/or shear deformations in the joints with the rock strength being a large extent decided by the mechanical and geometrical behaviour of the joints. The theoretical evaluation of the mechanical properties of fractured rock masses has no satisfactory answer because of the great number of variables involved. Some of these variables, which may influence the rock mass behaviour is poorly documented, are the degree of fracture persistence, joint orientation relative to the loading and joint gap. In this study, some numerical cases are implemented on the effect of joint orientation on the rock intensity. Applying the 2D discrete element code (UDEC), the numerical simulation is carried out to investigate the effect of joints on the rock intensity. The computation results indicate that the orientation and the joints density have great influences on the rock deformation and rock strength.
GANG WANG YU-JING JIANG MING-BIN WANG
College of Civil Engineering and Architecture.Shandong University of Science and Technology Qingdao, Department of Civil Engineering, Nagasaki University Nagasaki, 852-8521, Japan School of Science, Shandong Jianzhu University Jinan, 250101, P.R.China
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
613-618
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）