地下水和温度影响下的深部巷道变形特征

Deformation Characteristics of Deep Roadway Affected by Groundwater and Temperature

由于深部岩体长期处于应力场、渗流场和温度场三场耦合环境中,导致岩石性质已经不同于浅部。深入了解和掌握深部环境中的岩体工程的力学特性显得非常重要且急迫。因此总结分析了应力场、渗流场和温度场三场之间的耦合关系,并给出了三场平衡方程。运用FLAC3D软件建立起包含应力场、渗流场和温度场的数值计算模型,根据模拟所得的应力、位移分析了孔隙水压、温度和热对流系数对巷道变形破坏的影响。

Because the deep rock mass is in stress field, seepage field and temperature field three - field coupling environment for a long time, it results in that the rock property is different from the shallow rock. Deeply understand and master the mechanical properties of engineering rock mass in deep environment is very important and urgent. We carry on the summary analysis of coupling relationship among three fields, and present three equilibrium equations, and establish numerical model including stress field, seepage field and temperature field by FLAC3D. And according to the simulation of stress and displacement, we analyze the influence of the pore water pressure, temperature and heat convection coefficient on deformation and failure of roadway.