Coal-body gas permeability predicting method based on LVQ-CPSO-BP algorithm
A technology of LVQ-CPSO-BP and prediction method, applied in the field of coal gas permeability prediction based on LVQ-CPSO-BP algorithm
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[0066] Such as figure 1 as shown,
[0067] The coal gas permeability prediction method based on the LVQ-CPSO-BP algorithm consists of the following steps:
[0068] Screening of main influencing factors and determination of delamination critical value and stress inflection point
[0069] The coal gas permeability is closely related to the geological time and space characteristics. With the change of the coal mining process, it presents the characteristics of time-varying, nonlinear, fuzzy, etc., and shows the characteristics of dynamic changes. The influencing factors are mainly reflected in the geological structure, geological coal seam structure, coal seam mining depth, coal quality characteristics, etc. macroscopically, and mainly reflected in the effective stress, temperature, gas pressure, compressive strength, pore structure, etc. at the microscopic level. The above factors are ignored. The relationship between permeability and permeability cannot truly reflect the inte...
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