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结合炉峪口煤矿9#煤胶带下山巷道工程实例,在UDEC离散元软件分析下层煤受上层煤采空区煤壁的影响范围及应力分布规律的基础上,采用FLAC3D有限元软件分析不可避免处于下层煤高应力区内不同断面形式巷道应力分布、塑性区范围、变形量。研究表明,位于采空区煤壁下方应力升高区域中的巷道采用半圆拱形断面强帮支护可有效控制巷道稳定性,经工程应用与监测分析取得了良好的支护效果。
Combining with the example of tunneling of 9 # coal tape tunnel in Yukou coal mine, based on UDEC discrete element software, analyzing the influence range and stress distribution law of lower coal wall by the coal wall of the upper coal gob, using FLAC3D finite element software inevitably Stress distribution, plastic zone range and deformation of tunnel with different sections in high stress area of lower coal seam. The research shows that the semi-circular arched cross-section strong support can effectively control the roadway stability in the roadway located in the area of stress increase under the coal wall in the goaf, and the good supporting effect has been obtained through engineering application and monitoring analysis.