软弱岩层大断面绞车硐室快速施工技术研究

The study on rapid construction technology of the large section of weak rock winch chamber

鲁新矿井三采区轨道上山绞车硐室布置在煤层中,煤体强度低、硐室断面大,开掘、支护都比较困难,采用大断面硐室分层掘进技术及喷、锚网喷、钢筋混凝土砌碹支护工艺,取得了良好的效果,实现了机械化快速施工,为大断面软岩硐室施工开辟了新路径。

The third mining district rail hill winch room in Luxin coal mine arranged in coal seam,since low strength of coal mass and big cross section chamber,excavation and support are more difficult.Through the technology of the big section chamber layered excavation and spray,bolting-wire mesh-shotcreting support,arching Support by reinforced concrete,achieved good results,realized the mechanized excavation rapidly,opened up a new path for large section soft rock chamber construction.