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为研究东荣二矿七号工作面在18 MPa下煤层注水过程中注水时间、影响半径和水分增值之间的关系,根据现场测试结果,运用FEM算法反演计算得到数值模拟注水参数并建立了煤层注水数值模拟模型.运用回归分析法对数值模拟结果进行分析,得出注水时间与水分增值、影响半径的函数.研究结果表明:注水时间是一个以水分增值为二次项,以影响半径为一次项的函数,函数图像为倾斜的凹面,实现了通过煤层注水工程所需的水分增值和影响半径确定最佳注水时间的目的.
In order to study the relationship between water injection time, influence radius and water added value during the process of water injection at 18 MPa in No.7 Dongrong No.2 Mine, according to the field test results, numerical simulation of water injection parameters was carried out by FEM algorithm inversion and established The numerical simulation model of coal seam waterflooding was established.The regression analysis was used to analyze the numerical simulation results to get the function of water injection time and water added value and the influence radius.The results show that water injection time is a quadratic term with water added value as the second term, The function of a term and the function image are inclined concave, which realizes the purpose of determining the optimal water injection time through the added value of water and the influence radius required by the coal seam water injection project.