煤矿井下综掘工作面临时支护技术改造及应用

Technology Transformation and Application of Temporary Support in Fully Mechanized Driving Face in Underground Coal Mine

针对煤矿井下综掘工作面临时支护防护效果差的问题,对屯宝煤矿WⅡ02040502工作面上顺槽掘进工作面巷道临时支护进行了技术改造,增加了液压前翻板、超前网及护帮前探梁。现场应用结果表明,掘进1100 m未发生任何工作面迎头冒顶、片帮、落煤现象及伤人情况。改造后的临时支护能够满足综掘工作面迎头临时支护安全要求。

In view of the problems that the temporary support and protection effect is poor in fully mechanized driving face in underground coal mine,the temporary support of the gateway driving face of WⅡ02040502 working face in Tunbao coal mine was technically transformed.The hydraulic front turnover plate,the advance net and the front detection beam of the side protection were added.The field application results show that when drives 1100 m,there is no roof,side spalling,coal falling and personal injury.The transformed temporary support can meet the safety requirements of face-to-face temporary support of fully mechanized driving face.