摘要
裂隙岩体中流体对岩体的作用力 ,是研究岩体稳定性的重要问题。本文认为流体作用于裂隙壁面上的力包括两部分 ,即垂直于裂隙壁面的流体静水压力 (导致裂隙垂向变形 )和平行于裂隙壁面的拖曳力 (导致裂隙切向变形 ) ,此拖曳力为面力。文中以单裂隙水流的立方定律为基础 ,运用流体力学的动量方程 ,推导出了单一平直光滑无充填裂隙、有充填的裂隙及水流和充填物一起运动情况下 ,裂隙壁面承受的切向拖曳力公式。该公式对于分析流体对裂隙岩体变形性能及强度的影响具有重要价值。
It is very important to investigate the forces acting on the rock mass by the seepage flow in fracture network. The forces acting on the fissure walls by the seepage flow include the hydrostatic seepage pressure and the hauling force. Based on the cubic law of the single fissure flow, the equation of the hauling force with which the single fissure flow acts on the fissure walls is deduced by means of the momentum law of fluid mechanics. The equation is compared with the hydrodynamic pressure theory of continuum seepage. The result in the paper is a foundation for couple mechanism analysis of flow and stress in fractured rock mass.
出处
《工程地质学报》
CSCD
2001年第1期29-31,共3页
Journal of Engineering Geology
基金
中国科学院院长基金特别支持
陕西省自然科学研究计划项目!(99C2 2 )资助
