Improved seepage model of water-rock-structural planeduring mine excavation
This paper differentiated and analyzed the coupling mechanism of stress and fluid flow in fractured rock mass, especially during the mine excavation. It pointed out that the structural plane between the water and the rock mass is not only a physical medium in the process of water-rock coupling, but also a mechanical medium. Considering the influence of fluid flow on the stress mechanism through two aspects, one is hydrostatic pressure, another is hydrodynamic pressure. Also taken into account the 3D stresses around the rock, and explored the stresses on the fluid flow mechanism from normal and shear stress respectively. Then an improved seepage model has been proposed, i.e. water-rock-structural plane model. This model can describe the seepage mechanism clearly and distinctly, even under 3D stresses. From the point of the structural plane deformation, the relation between permeability and the 3D stresses has been derived, and also the effective seepage model has been clarified deeply.
seepage model rock water structural plane mine excavation
Ke Man Ju Wang Rui Su Hongwei Zhou
Division of Environment Engineering,,Beijing Research Institute of Uranium Geology, Beijing 100029, Division of Environment Engineering,,Beijing Research Institute of Uranium Geology, Beijing 100029, Institute of Rock Mechanics and Fractals, China University of Mining and technology, Beijing 100083,
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
152-158
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）