Junfu Zhu1, Qian Yin1,2,*, Hongwen Jing1, Xinshuai Shi1, Minliang Chen1,3
CMES-Computer Modeling in Engineering & Sciences, Vol.125, No.2, pp. 725-753, 2020, DOI:10.32604/cmes.2020.012648
Abstract This study experimentally and numerically investigated the anchorage properties, bolt force evolution, deformation and stress fields of blocky
rock mass with various dip angles of joint surfaces under an applied axial
load. The results show that due to bolt reinforcement, the axial stress-strain
curves of anchorage blocky rock mass show typical strain-hardening characteristics, and compared with models without anchorage, the peak strength and
elastic modulus increase by 21.56% and 20.0%, respectively. With an increase
in axial stress, the lateral strain continuously increases, and restriction effects
of bolts reduce the overall deformation of model surfaces. The axial stressstrain curves of anchorage… More >
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