煤层底板岩层的渗流特性以及水岩耦合作用的理论研究

本文对煤层底板岩层的渗流特性以及水岩耦合作用进行系统研究,认为对于已经失稳破坏的岩体,需要避免岩体在应变软化阶段变形的进一步演化;如果泥岩在采动作用下发生失稳;随着静水压力的增大裂隙屈服区宽度也在增大,裂隙的粗糙度和宽度均会影响裂隙受到的水压;应力场的改变影响了裂隙面的开度,进而改变的渗透系数,改变了岩体对水的渗透能力。

Seepage characteristics of coal seam floor and theoretical study on coupling effect of water and rock

In this paper,the seepage characteristics of the coal seam floor and the coupling effect of water and rock are systematically studied.For the rock mass which has been unstable,it is necessary to avoid the further evolution of the deformation of the rock mass during the strain softening stage;if the mudstone is unstable under the action of mining,the width of the fracture yield area increases with the increase of the static water pressure,and the roughness and width of the fissure will affect the water pressure of the fissure;the change of the stress field will affect the rock mass.The opening of fractured surface and the change of permeability coefficient change the permeability of rock mass to water.