基于不对称顶板特性的沿空巷道支护方案设计

Support Scheme Design of Roadway along Goaf Based on the Asymmetric Characteristics of the Roof

针对20103工作面运输平巷大断面沿空巷道的围岩控制问题,本文充分利用现场调研、矿压观测、统计分析等研究方法,分析了巷道围岩变形破坏特征及支护要点,并依据顶板的不对称特性对原巷道支护方案进行优化设计,并进行了现场试验及后续围岩变形监测,实现了巷道围岩的有效控制,保障了安全生产。

In view of the surrounding rock control problem of the large-section gob-side roadway in 20103 face transportation roadway,this paper makes full use of field investigation,mine pressure observation,statistical analysis and other research methods to analyze the deformation and failure characteristics of the roadway surrounding rock and support key points,and optimizes the original roadway support scheme according to the asymmetric characteristics of the roof,and carries out field tests and subsequent monitoring of surrounding rock deformation,thus realizing effective control of the roadway surrounding rock and ensuring safe production.