边坡失稳系统的岩体与水固流耦合作用机理研究

摘要

This paper takes the failure of the slopes stability as a systemto analyze the mechanism in the process of the stability failure,sets up the system's mathematic model of the stress field and flow field and has a coupling analysis,combinating practical examples of calculation analysis,and proving the importance of seepage-stress coupled analysis.The model has a certain value on theory and practice and helps to eliminate the error from only considering the flow field.%将边坡失稳问题作为一个系统来考虑，以岩体水力学为基础，研究了地下水对岩体物理力学性质的影响以及岩体受力后孔隙、裂隙改变而使其渗透性质发生变化即岩体与水耦合作用下边坡的失稳机理，建立了该系统的应力场和渗流场的数学模型，并对具体实际问题进行了数值分析。结果表明，研究岩体与水固流耦合作用下的边坡失稳问题克服了以往仅考虑渗流场或应力场而带来的缺陷，具有一定的理论意义和实际应用价值。