松动爆破拆除副井临时锁口

Shock blasting for demolishing on temporary concrete-lined shaft-collar of auxiliary shaft

首先介绍了拆除爆破的基本原理 ,利用该原理对永城煤电集团城郊煤矿副井临时锁口拆除进行了爆破设计并组织施工 ,在井筒装备已经完成的情况下 ,安全、快速地完成了临时锁口的拆除工作 。

The basic principle of demolishing blasting are presented.It puts forward the blasting design and the process of demolishing of the temporary concrete?lined shaft?collar of auxiliary shaft in Chengjiao Coal Mine,Yongcheng Coal?Power Group Company under the condition that the permanent equipments were fixed.It completes the demolishing task quickly and safely,and saves a certain time for the shaft building and using.