摘要
在顾桥矿南区回风井冻结施工中,通过对打钻、冻结施工的精心组织、科学管理,分阶段、分步骤采取相应措施,取得了58天施工完冻结孔,53天3个含水层冻结壁交圈,6天井筒试挖,为井筒快速施工创造了条件。
Through scientific management of drilling and freezing operations and adopting corresponding measures step by step in a planned way,drilling of freezing holes were completed in 58 days,closure of freezing walls for 3 aquifers was made in 53 days and trial shaft sinking was completed in 60 days.This provides a favorable condition for the rapid sinking of the upcast shaft at Gujiao Mine
出处
《水力采煤与管道运输》
2009年第1期7-9,共3页
Hydraulic Coal Mining & Pipeline Transportation
