综采工作面局部冒顶原因分析及控制措施

Cause Analysis and Control Measures of Partial Top Falling in Fully Mechanized Working Face

综采工作面在回采期间受地质条件及施工条件影响,工作面顶板经常出现破碎、局部冒顶现象,不仅影响着工作面回采速度,加大了顶板控制难度,而且很容易引起顶板大面积垮落事故发生,威胁着工作面安全回采。本文以2-209工作面为例通过技术研究,合理分析了综采工作面顶板局部冒顶事故主要原因,并根据生产实际情况提出了合理有效的控制措施。

During the mining of fully mechanized working face, influenced by geological conditions and construction conditions, in the roof, there often appear roof-broken, local roof caving phenomenon, which not only affects the speed of mining face, increases the difficulty of roof control, but it＇s also easy to cause large area roof caving accident, threatening the safety mining of mining face. This paper takes 2-209 working face as an example, after technical research, analyzes the main reasons for the local roof caving of fully mechanized working face, and puts forward reasonable and effective control measures according to the actual production situation of the mine.