综采工作面老顶初次来压的显现分析

Analysis on the Behavior of First Weighting of Hard Roof of Fully Mechanized Mining Face

煤炭作为中国主要能源之一,在国民经济建设中占着重要的战略地位。长期以来,矿井实践开采中工作面采高逐渐增大,顶板活动频繁,初次来压显现较为剧烈,直接影响矿井开采的产量、效益及其安全性。因此,研究综采工作面老顶初次来压显现规律具有重要实践意义。

As a major kind of energy of China, coal occupies an important strategic position in the national economy. For a long time, in the practical mining of mine, the mining face is of gradually increasing mining, frequent roof movement, and severe behavior of first weighting, which show a direct impact on the output, effectiveness and safety of mining. Therefore, the study on the behavior law of first weighting of hard roof of fully mechanized mining face is of important practical significance.