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논문 기본 정보

자료유형
학술저널
저자정보
Huang, Houxu (State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, PLA University of Science and Technology) Li, Jie (State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, PLA University of Science and Technology) Rong, Xiaoli (State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, PLA University of Science and Technology) Hao, Yiqing (State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, PLA University of Science and Technology) Dong, Xin (State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, PLA University of Science and Technology)
저널정보
테크노프레스 Geomechanics & engineering Geomechanics & engineering 제13권 제3호
발행연도
2017.1
수록면
489 - 504 (16page)

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The localized shear and the slip lines are easily observed in elastic-brittle-plastic rock. After yielding, the strength of the brittle rock suddenly drops from the peak value to the residual value, and there are slip lines which divide the macro rock into numbers of elements. There are slippages of elements along the slip lines and the displacement field in the plastic region is discontinuous. With some restraints, the discontinuities can be described by the combination of two smooth functions, one is for the meaning of averaging the original function, and the other is for characterizing the breaks of the original function. The slip lines around the circular opening in the plastic region of an isotropic H-B rock which subjected to a hydrostatic in situ stress can be described by the logarithmic spirals. After failure, the deformation mechanism of the plastic region is mainly attributed to the slippage, and a slippage parameter is introduced. A new analytical solution is presented for the plane strain analysis of displacements around circular openings. The displacements obtained by using the new solution are found to be well coincide with the exact solutions from the published sources.

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