【摘要】 从岩体裂隙网络渗流的特点出发,以节理开度变化为纽带,对裂隙岩体渗流场与应力场耦合的离散裂隙网络模型进行分析,采用离散单元法对节理岩质边坡不同库水位条件下的渗流场与应力场进行了耦合分析,比较真实地模拟了库水位上升对节理岩质边坡渗流场与应力场的改造,研究了库水位上升对边坡变形和稳定性的影响规律。结果表明:水库蓄水后,随着水位的抬升,坡体内的最大位移、最大孔压、最大流量均有不同程度的增大,而边坡的稳定性逐渐降低。更多还原

【Abstract】 Based on the postulate of the characteristics of fluid flow through joint networks of rock mass and taking the change of the joint width as a link,the fracture network model of the coupled seepage and stress fields in fractured rock mass is studied.The raising of the reservoir water level behind the jointed rock slope is simulated,the deformation trends of the coupling of stress and seepage is studied and the change of the slope stability under different water levels is gained.The results show that with the raising of the water level,the maximal displacement,the maximal pore pressure and the maximal flow rate are increasing to different extent and the slope stability is decreasing.更多还原