Engineering Application of Permeability Coefficient for Fractured Rock Masses
Permeability of fractured rock masses is essentially controlled by geological settings,struc-tural plane and evolution degree of release fracture,therefore,establishing characterization methods and its application of permeability coefficient is one of the important topics in the fields of hydropower engineering,energy and environment.Combined with the engineering geological and hydrogeological data of a large hydropower station in southwest China,this paper made some analysis and study about the seepage characteristics and distribution of fractured rock masses by statistic methods based on structure of rock mass and stress release effect.The above-mentioned helps to make permeability parti-tions in project areas,and finally the geometric mean is taken as the average permeability coefficient of the geological unit applying for assessment on effectiveness and safety of seepage control system in un-derground power station,providing a basis for application of seepage parameters of rock mass for engi-neering in deeply-cut valleys hereafter.
water pressure test in boreholepermeability coefficientpermeability partitionsassessment on seepage control system
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