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in limit analysis framework. Two failure mechanisms are proposed for calculating the work rate of external force and the internal energy dissipation. A tangential line to the nonlinear failure criterion...Upper bound solutions for supporting pressures of shallow tunnels with nonlinear failure criterionYANG Xiao-li(杨小礼), ZHANG Dao-bing(张道兵), WANG Zuo-wei(王作伟)(School of Civil Engineering, Central South......
maintain the stability of pressurized tunnel faces were deduced using limit analysis in conjunction with nonlinear failure criterion under the condition of pore water pressure. Due to the objective... probability. The results can provide practical use in the pressurized tunnel engineering. Key words: tunnel; limit analysis; nonlinear failure criterion; pore water pressure; retaining pressure 1 Introduction......
were also observed and analyzed. It is found that the increase of either pre-loaded stress or heating-rate decreases the failure temperature. Metallographic analysis shows that high heating-rate may... decreases the failure temperature. The metallographs of the tested material are also analyzed to investigate the mechanisms of the heating-rate effect. Metallographic analysis shows that the high......
-Prager criterion. But he didn’t carry out further applicability analysis of the failure criterion. As a matter of fact, each proposed failure criterion is particularly suitable for one rock type...J. Cent. South Univ. Technol. (2011) 18: 925-931 DOI: 10.1007/s11771-011-0782-7 Statistical evaluation of five failure criteria for intact salt rock MA Lin-jian(马林建), LIU Xin-yu(刘新宇), FANG Qin(方秦......
J. Cent. South Univ. (2020) 27: 2745-2753 DOI: https://doi.org/10.1007/s11771-020-4495-7 A simple theoretical approach for analysis of slide-toe-toppling failure Hassan Sarfaraz School of Mining... stability; slide-toe-toppling; theoretical solution Cite this article as: Hassan Sarfaraz. A simple theoretical approach for analysis of slide-toe-toppling failure [J]. Journal of Central South......
J. Cent. South Univ. Technol. (2008) 15: 339-343 DOI: 10.1007/s11771-008-0064-1 Failure of rock under dynamic compressive loading ZHOU Zi-long(周子龙)1, LI Di-yuan(李地元)1, MA Guo-wei(马国伟)2, LI Jian... loading. The results show that the simulation results are in accordance with the failure patterns of specimens in experimental test. The interactions between stress wave and crack with different inclined......
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. The numerical strength analysis methodology was presented containing the basis assumption for the analysis, the material modeling, and the selected element type. It was assumed that the composite ply......
capacity; rough foundation; slip-line field theory; upper bound limit analysis theorem; slip failure mechanism; nonlinear programming method...Construction of improved rigid blocks failure mechanism for ultimate bearing capacity calculation based on slip-line field theoryZHAO Lian-heng(赵炼恒), YANG Feng(杨峰)(School of Civil Engineering......
years, the limit analysis theorem has been broadly utilized in geotechnical engineering due to its unique advantages [5–8]. FRALDI and GUARRACINO [9] established the curved failure mechanism for roof collapse based on limit analysis theory, and derived the failure shape for tunnel cross sections. PAN and DIAS [10] employed spatial discretization technique to improve the three-dimensional failure......
analysis indicates that nonlinearity and dilation have significant influence on the result of slope stability analysis. Key words: slope stability analysis; nonlinear failure criterion; non-associated flow... stability on the basis of limit analysis theory. For the convenience in employing a nonlinear form of the Mohr–Coulomb (M–C) failure criterion in analyzing slope stability, ZHANG and CHEN [8] adopted......
