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Progressive failure processes of reinforced slopes based ongeneral particle dynamic methodZHAO Yi(赵毅)1, 2, ZHOU Xiao-ping(周小平)1, 2, 3, QIAN Qi-hu(钱七虎)4(1. State Key Laboratory of Coal Mine Disaster... deformation and failure of geomaterials. The Mohr-Coulomb strength criterion was implemented into the code to describe the elasto-brittle behaviours of geomaterials while the solid-structure......
Model Investigation on Composite Failure Prediction of π-Joint Structures () 摘要:This paper was concerned with the tensile mechanics behavior of the composite π-joint under static tensile loading... failure load, two stiffness degradation models were discussed and a modified maximum stress failure criteria was presented. To verify the numerical model, a pull-off test scheme was performed......
J. Cent. South Univ. (2017) 24: 2487-2495 DOI: https://doi.org/10.1007/s11771-017-3661-z Strength and failure characteristics of sandstone containing two circular holes filled with two types... as filling modes on their strength properties and failure modes. The results show that the initial cracks can be categorized as wing crack, axial tensile crack and curved tensile crack. The failure......
J. Cent. South Univ. (2016) 23: 189-200 DOI: 10.1007/s11771-016-3062-8 Theoretical generalization of Markov chain random field from potential function perspective HUANG Xiang(黄翔)1, WANG Zhi-zhong(王志... and should be checked whenever possible because it is mathematically difficult to prove. Rather than trap in this independence proving, an appropriate potential function in MRF theory is chosen instead......
Mechanical response features and failure process ofsoft surrounding rock around deeply buried three-centered arch tunnelZHAO Yu(赵瑜)1, 2, ZHANG Zhi-gang(张志刚)3, 4(1. Key Laboratory of New Technology... of failure of the model all the time. The experimental results indicate that the deformation of SR around a underground cavern possessed the characteristics of development by stages and in delay......
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function f(σn, τn) when materials yield. Therefore, as for tunnel surrounding rocks with the Hoek-Brown failure criterion, their plastic potential function is expressed as  ... for karst tunnel construction. Based on the Hoek-Brown nonlinear failure criterion, the minimum safe thickness of rock plug was investigated in the light of the limit analysis theory. On the basis......
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criterion was developed by EWY [11]. By considering that the Hoek-Brown failure criterion [12] has been widely used in hard rocks, this work uses a new nonlinear strength function proposed by BAKER.... In order to describe the shape and extension of the failure collapsing block, it is of essential to obtain the explicit expression of g(x) by constructing an objective function consisting of the external......
distribution function of microscale random rough surfaces WANG Ai-hua(王爱华)1, 2, HSU P. F.2, CAI Jiu-ju(蔡九菊)1 1. School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China; 2... height conforms to the Gaussian probability density function distribution. Various computational modeling issues that affect the accuracy of the predicted properties were discussed. The results show......