煤层坚硬顶板综采面初次放顶爆破技术

摘要

The forced roof caving using cut loose blasting technique in fully mechanized working face of Gubei Mine 1212 （1） is introduced in this paper, which makes a satisfactory solution to the problem of the roof management during initial caving and achieves good safety benefits.%本文介绍了顾北矿1212（1）综采工作面切眼松动爆破强制放顶技术,圆满地解决了初放期间的顶板管理问题,取得了较好的安全效益。