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裂隙水流对裂隙壁同时具有法向渗透静水压力作用和切向的拖曳力 (渗透动水压力 )作用。本文提出单一光滑平直裂隙、充填裂隙、水流和充填物一起流动 3种情况下裂隙壁所受的渗透静水压力和拖曳力公式 ,并采用算例定量分析裂隙水流对裂隙壁的这种双重力学效应。结果表明 ,裂隙水流的渗透静水压力和切向拖曳力作用都使岩体各应力分量增大 ,计算岩体应力时应考虑裂隙水流的双重力学效应。
Fissure flow on the fissure wall at the same time have a normal hydrostatic pressure and tangential drag force (osmotic hydrodynamic pressure) role. In this paper, the formulas of the hydrostatic pressure and the drag force of the seepage on the crack wall subjected to a single smooth and straight fissure, filling fissure, flowing water and filling material are presented. The double mechanics of fissure flow on the fissure wall effect. The results show that both the infiltration hydrostatic pressure and the tangential drag force of the fissured water flow increase the stress components of the rock mass, and the double mechanical effect of the fissure water flow should be considered when calculating the rock mass stress.