Method for quantitatively determining fractured rock mass permeability anisotropy
A fractured rock mass, anisotropic technology, applied in the direction of permeability/surface area analysis, measuring device, suspension and porous material analysis, etc., can solve the problem that the cracks of different rock masses are large and cannot fully reflect the permeability anisotropy of rock mass , can not reflect the difference in permeability of fractured rock mass, etc., to achieve the effect of saving material and financial resources
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[0034] Taking the quantitative determination of the permeability anisotropy of the fractured rock mass at the riverbed dam foundation of a hydropower station as an example, the method of the present invention includes the following steps:
[0035] (1) According to the actual volume of the fractured rock mass and the spatial shape, number and distribution of the fractures in the rock mass, make a 3D digital model of the fractured rock mass, input the 3D digital model into a 3D printer, and rotate the 3D digital model of the fractured rock mass. The powder of the actual fractured rock mass is used as raw material to print out the similar materials of the actual fractured rock mass with an inclination angle of 0°, 15°, 30°, 45°, 60°, 75° or 90° to the horizontal direction.
[0036] (2) Use the rock gas permeability testing device to measure the permeability of similar materials with different inclination angles, and use the inclination as the x-axis and the permeability...
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