综放沿空巷道不对称支护技术研究

为研究不对称支护对综放沿空巷道围岩的影响，以高良煤矿3205综放面附近的一条沿空巷道工程为背景，在传统对称支护方案设计基础上，对煤柱侧锚杆和锚网进行加强设计，得到了不对称支护方案；采用FLAC^3D数值模拟分析对称和不对称支护条件下沿空巷道周边围岩的应力、变形。分析结果表明，非对称支护方案对围岩应力分布影响不大，但能够有效改善沿空巷道周边围岩的位移。

Research on asymmetric supporting technology of gob-side entry in fully-mechanized mining

In order to study the influence of asymmetric support on the surrounding rock of the roadway along the goaf，the coal pillar side anchor was based on the design of the traditional symmetric support scheme based on an adjacent roadway project near the 3205 fully mechanized caving face of Gaoliang Coal Mine.The design of the anchor net was strengthened and the asymmetric support scheme was obtained.The FLAC^3D numerical simulation was used to analyze the stress and deformation of the surrounding rock around the roadway under symmetrical and asymmetrical support conditions.The analysis results show that the asymmetric support scheme has little effect on the stress distribution of surrounding rock，but it can effectively improve the displacement of surrounding rock around the roadway along the goaf.