【摘要】 采动影响下的断层活化是损伤累积作用下断层带岩体原始裂隙发育扩展的结果并与断层带岩体性质密切相关。为了研究断层原生水的存在对断层活化的影响,根据断裂力学建立水压作用下断层带岩体裂隙损伤发育力学模型,分析了断层水对断层活化的影响并利用FLAC^3D内置fish语言进行固液耦合数值模拟验证。研究结果表明:断层水的存在将会导致断层带岩体裂隙面正应力降低,裂隙更容易发育扩展而增加了采动影响下断层活化的可能性。更多还原

【Abstract】 Fault excitation under mining was the results of primary fracture development within fault zone under damage accumulation,and closely related with fault rock mass character.In order to study the influence that fault primary water to fault excitation,fracture development mechanics model under water pressure of fault zone rock was built,the influence that fault water to fault excitation and then solid and fluid coupling simulated verified by Fish language of FLAC^{3 D} software,the results showed that the normal stress of fracture would be decreased as fault water,and then fracture would expanding easily and the feasibility of fault excitation under mining influence was increased.更多还原