摘要
阐述了回采工作面顶板裂隙的形成条件,分析了回采工作面顶板破坏失稳的三种类型,提出了改善回采工作面顶板管理、防止事故发生的措施。
The formation conditions of roof cracks in the stoping workings are expourded and the three types to destrey stability of the roof of the stoping workings are analyzed. The measures to improve management of the roof of the stoping workings are put forward so as to avoid the accidents.
出处
《矿业快报》
2005年第8期12-14,共3页
Express Information of Mining Industry
关键词
回采工作面
项板事故
力学原理
防治措施
Stoping workings
Roof accident
Mechanics principle
Precautionary measure
