综放工作面底鼓加固及防控技术研究

Study on Floor Heave Reinforcement and Prevention and Control Technology in Fully Mechanized top Coal Caving Face

为研究综放工作面顺槽底鼓问题及相应的加固治理技术,以宏岩煤矿10103综放工作面回风顺槽为研究背景,分析了该顺槽底鼓特征及相关影响因素,特提出了相关治理技术。研究结果表明:巷道应力集中及支护方案的不合理是影响巷道发生底鼓的主要因素,通过锚索加固及注浆工艺等可以有效的治理。

In order to study the problem of floor heave in fully mechanized top coal caving face and the corresponding reinforcement and treatment technology,taking the return air gateway of 10103 fully mechanized caving face in Hongyan coal mine as the research background,the characteristics of floor heave and related influencing factors are analyzed,and the relevant treatment technologies are proposed.The results show that:the stress concentration of roadway and the unreasonable support scheme are the main factors affecting the floor heave of roadway,which can be effectively controlled by anchor cable reinforcement and grouting technology.