Study on the Complex Electrical Response Characteristics of Loaded Coal and the Control Mechanism of the Main Fracture System Structure.

Therefore, substituting the values of L m , L d , and L c into eq 3 , the following equation is obtained after derivation and calculation: 4 Equation 4 shows that the proportional coefficients of the coal resistance in the z , y , and x directions are 0.528, 0.154, and 0.083, respectively, showing a decreasing trend in sequence.

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