摘要：To ascertain the research status of the seepage characteristics of rock mass fractures,in this paper,we reviewed the research in terms of seepage test equipment,the effect of external forces on permeability,and the anisotropic seepage theoretical model.On this basis,we conducted further analysis of the existing problems in the seepage characteristics of rock mass fractures,and put forward suggestions on problems and development directions that need to be resolved.The analysis results show that the rock permeability is affected by rock stress loading and unloading conditions,pore morphology and roughness factors.All these factors must be carefully considered and should not be ignored.The influence of rock permeability on stress has been widely recognized,but studies on seepage anisotropy characteristics considering rock joints are rarely reported.Future research still needs to carry out more physical experiments on the anisotropy characteristics of natural fractures and fracture-seepage coupling.The research results of this paper can provide references for the understanding of oil and gas seepage characteristics in the reservoirs,engineering technicians and hydrogeologists to conduct research and prediction on the permeability of fractured rock mass.
关键词：Rock fracture;seepage model;anisotropy;permeability coefficient;coupling test
