Use of Hydraulic Test Data to Recognize Fracture Network Pattern of Rock Mass in Taiwan Mountainous Areas

Comprehensive information on fracture network properties around a borehole is indispensable for developing hydrogeological site descriptive model. However, such usually relies various cross-hole field tests at high cost. This study presents cost-effective option regarding the identification of density borehole. Based packer-test and drilling-core data from 104 boreholes in Taiwan mountainous areas, Barker’s generalized transient radial flow model concept fractal dimension were used to reanalyze existing hydraulic test obtaining n value related geometry groundwater each section. The analyzed was utilized explain characteristics adjacent area packer inspection interpretation results verified, using five indicators, namely rock-quality designation, aperture, density, conductivity, fracture/matrix permeability ratio. All indices have correlations with values. verification these indices, proposed method exploring proven be feasible. Finally, three practical relations established, provide additional designing planning groundwater-related engineering systems areas.