摘要
随着煤矿开采深度的不断增加,复杂软弱巷道围岩变形极为严重,影响了巷道的正常安全施工。为避免因开挖带来的附加应力所引起的巷道冒顶及片帮,提出了采用钢管混凝土进行加强支护,以增强巷道稳定性,减少围岩变形量,实现正常生产。本文通过对支护体系结构的分析,确定了相关的支护技术参数和施工工艺,工程应用表明,该支护方式较好地控制了围岩变形,达到了预期目标。
In order to avoid the roadway roof fall and wall caving which caused by subsidiary stress of excavation. Puts forward use concrete filled steel tube to strengthen supporting and enhance stability of roadway,reduce the deformation of surrounding rock,realize safe and normal production. Through the analysis of the supporting system structure,determines the relevant supporting technology parameters and construction technology. Engineering application shows that surrounding rock distortion of roadway is controlled better,achieves the expected goal.
出处
《山西焦煤科技》
2015年第10期14-17,共4页
Shanxi Coking Coal Science & Technology
关键词
软弱围岩巷道
钢管混凝土
围岩变形
矿压观测
Soft rock roadway
Concrete filled steel tube
Deformation of surrounding rock
Mine pressure observation
