岩石介质中多裂纹扩展相互作用及其贯通机制的数值模拟*

Abstract

Abstract: The propagation, interaction and coalescence of multi-cracks in rocks were numerically studied by using a new ly dev eloped numerical code, Rock Failure Process Analy sis ( RFPA^2D).By demo nst rating the deformation and st ress field, the heterog enei ty-related acoustic emissions and the rock bridge behavior, the simulation rev ealed mechanism of propagation, interaction and coalescence of multi-cracks in bri ttle and heterogeneous rock. It is show n that, for rock materials which are highly heterog eneous, to treat it asa homog eneous and continuous material may result in a dif ferent simulation result from that for the real rock behavior, suchas acoustic emissionor microseism and rock bridg eoren-echelonfaults.

Key words: Heterogeneity, Fracture mechanics, Coalescence, Rock bridge, Numerical simulation

CLC Number:

P313
P584

TANG Chun-an, HUANG Ming-li, ZHANG Guo-min, JIAO Ming-ruo. Numerical simulation on propagation, interaction and coalescence of multi-cracks in rocks[J]. EARTHQUAKE, 2001, 21(2): 53-58.

References

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Numerical simulation on propagation, interaction and coalescence of multi-cracks in rocks

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