孔隙水压对岩体蠕变影响研究

Study on effect of porous pressure to nonlinear creep of deep rocks

将巷道围岩视为多孔介质,考虑地下水渗流作用的影响,应用弹性力学理论以及粘弹性蠕变力学理论,导出了巷道围岩的应力、应变、位移等的分布规律,以及它们与孔隙水压力之间的关系;找到了影响蠕变的又一主要因素———孔隙压力,建立了深部岩体非线性蠕变的力学模型和数学模型。

As porous medium,rocks are affected by ground water permeation.Elastic mechanics theory and viscoelastic creep theory are used to obtain the stress,strain and displacement distribution of rocks around tunnel and the relation between porous pressure and them.The porous pressure as a main factor affecting creep is found and the mechanical model and mathematical model of nonlinear creep of deep rocks are established.