Jointed rock mass volume joint number determination method based on drilling camera shooting technology
A technology for jointed rock mass and determination method, which is applied to measurement devices, instruments, and optical devices, etc., can solve problems such as uneven spacing distribution, derivation, and correction coefficients, and achieve accurate and fast calculation and comprehensive factors.
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[0033] The embodiment of the present invention discloses a method for determining the volume joint number of jointed rock mass based on borehole camera technology, which includes the following steps:
[0034] S1. On the surface of the rock mass to be tested, select a surface area per unit area;
[0035] S2, measure the number of rock mass surface joints Js of the surface area per unit area, the joint spacing H and the inclination angle θ between the joints and the horizontal roadway;
[0036] S3, drilling a hole on the surface area per unit area, and measuring the number of joints Jc inside the rock mass;
[0037] S4. Comparing the joint spacing H measured in step S2 and the sine and cosine values of the inclination angle θ between the joint and the horizontal roadway, to determine the volumetric joint number Jv of the rock mass.
[0038] In a specific embodiment, in step S2, three-dimensional digital photogrammetry and rock mass structure analysis system are used to measur...
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