裂隙岩体渗流场与应力场的耦合数值分析

Coupling Numerical Analysis of Seepage Field and Stress Field for the Rock Mass with Fracture

裂隙岩体渗流场与应力场耦合是一个复杂的地质问题。本文基于裂隙-空隙双重连续介质对裂隙岩体渗流场与应力场进行耦合分析,推导建立了数学模型,并将该模型用于实际边坡工程的岩体裂隙进行数值模拟,分别对不考虑应力影响下的渗流场和不考虑渗流影响下的应力场以及两场相互耦合时的稳定性进行了研究,由于耦合作用下与任意单场作用下相比差异较大,因此考虑岩体裂隙多场耦合作用是必要的也是符合事实的[1]。

The coupling of seepage field and stress field for the rockmass with fracture is a complicated geological problem. Based on the coupling analysis of the seepage field and stress field, the paper set up a mathematical model which was used to carry out numerical simulation for the practical side slope project of fissure rock. The stability in the condition of seepage field with no effect of stress, and the stress field with no effect of seepage or in the condition of both fields coupling was researched. Because of the large differences under the coupling effect of both fields with a random single field, so it is nessary and fit with the facts to consider the coupling effects for the fissure rock.