RESEARCH OF INCLINATION ANGLE EFFECT ON JOINT ROCK MACROMECHANICAL PARAMETERS
The joint of rock mass influences and controls the rock mass intensity, deformation characteristics and instability failure in the rock engineering to a great extent. Using the similar material simulation is of different inclination angle of non-penetration jointing and non-jointing rock mass, through using rigid servo compression machine to carry uniaxial compression test, we get a nearly same trend of joint rock mass stress-strain curve of different angle，the curve of inclination angle of 45° is analyzed, the test result shows that the compressive strength first decreases and then increases gradually with the increase of rock inclination angle. The compression intensity is its minimum when of the inclination angle of 45°, and the deformation modulus first decreases and then increases, but deformation modulus of 30° is its minimum. In addition, through the use of developed RFPA2D system to simulate on trial uniaxial compression value based on microscopic damage mechanics, we get the conclusion that the numerical analysis and test result is fitting approximately, it is validated that the numerical model can simulate joint rock well.
FENG Yan-feng YANG Tian-hong WEI Hua GAO Hua-guo ZHANG Zhe
Center for Rock Instability and Seismicity Research, Northeastern University, Shenyang, Liaoning, 11 Center for Rock Instability and Seismicity Research, Northeastern University, Shenyang, Liaoning, 11 College of Civil Engineering, Shenyang University of Technology, Shenyang, Liaoning, 110870 China The School of Resources and Civil Engineering,University of Science and Technology Liaoning, Anshan
国际会议
桂林
英文
1-6
2010-11-16（万方平台首次上网日期，不代表论文的发表时间）