刘塘坊铁矿1号副井井筒冻结钻孔施工实践

Construction Practice of Freezing Borehole in an Auxiliary Shaft

摘要:

介绍了冻结法施工的原理和特点；简述了刘塘坊铁矿1号副井井筒冻结钻孔的基本情况，分析了本工程施工的难点和采取的技术措施，介绍了施工中需要注意的事项和环节，对本工程进行了施工总结。

Abstract:

The principle and characteristics of freezing construction is introduced and the situation of freezing borehole of 1# auxiliary shaft of Liutangfang iron mine is described. The paper analyzed the difficulties and the technical measures in the engineering construction, introduced the attentions and steps in the construction and summed up the operation.