动压巷道应力数值模拟分析

为研究动压巷道应力分布,采用应力解除法测试地应力。根据测试结果,采用数值模拟软件,分析了巷道周围的地应力分布、保护煤柱和采场顶板应力分布、采空区垂直位移分布特征,以及煤柱宽度和巷道顶底板变形量的关系,为动压巷道支护参数的设计提供了理论依据。

Numerical Simulation Analysis of Dynamic Pressure Roadway Stress

To study the stress distribution of the dynamic pressure roadway, the stress relief method was used to test the ground stress. According to the test results, the numerical simulation software was used to analyze the distribution of the ground stress around the roadway, the stress distribution of the protective coal pillar and the roof of the stope, the distribution characteristics of the vertical displacement of the goaf, and the relationship between the width of the coal pillar and the deformation of the roof and floor of the roadway, which provides a basis for the design of the supporting parameters of the dynamic pressure roadway.