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Volume 37 Issue 8
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WANG Gang, ZHANG Xue-peng, JIANG Yu-jing, ZHANG Yong-zheng. New shear strength criterion for rough rock joints considering shear velocity[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(8): 1399-1404. DOI: 10.11779/CJGE201508006
Citation: WANG Gang, ZHANG Xue-peng, JIANG Yu-jing, ZHANG Yong-zheng. New shear strength criterion for rough rock joints considering shear velocity[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(8): 1399-1404. DOI: 10.11779/CJGE201508006
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New shear strength criterion for rough rock joints considering shear velocity

  • 1. State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China;
    2. Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Shandong University of Science and Technology, Qingdao 266590, China

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  • Received Date: September 17, 2014
  • Published Date: August 24, 2015
    Graphical Abstract
    • Abstract
  • The stability of jointed rock under dynamic loading conditions, which is under different shear velocities, is one of the urgent problems in the current engineering construction. By using JAW-600 coupled shear-flow machine,four groups of rock-like joints with different roughness coefficients are sheared with different shear velocities based on the rock joints from the underground caverns of Huangdao State Oil Reserves. The experimental results show that the shear velocity and joint roughness coefficient obviously affect the shear strength. The shear strength for any rough rock joints decreases with the increasing shear velocity. Meanwhile, the shear strength under any shear velocity shows a linear increase with the joint roughness coefficients. On the basis of the experimental data and Barton’s criterion for shear strength, a new shear strength criterion considering shear velocity for rough rock joints is proposed. Then its correctness is verified by the shear strength of rock joints proposed by Barton with an average estimation error of 10.539% .
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    • References (18)
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