工作面推进速度对综放面超前应力的影响研究

Study on the Influence of Working Face Advancing Speed to Fully Mechanized Caving Advanced Stress

根据同发东周窑煤业有限公司8300综放工作面不同推进速度下对超前应力的现场实测,分析了综放工作面在慢速和高速推进情况下工作面超前应力分布情况和变化规律。在生产时应根据其分布情况和变化规律,适当调整工作面推进速度,防止过慢,不利于维护巷道稳定性和煤壁片帮,防止过快,导致应力集中而发生煤与瓦斯突出,对指导综放工作面安全高效生产具有一定的意义。

Based on Tongfa Dongzhouyao Corporation 8300 fully mechanized working face field measurement of advanced stress under different advancing speed, working face advanced stress distribution and change rule under low and high speed advancing speed were analyzed. Working face advancing speed should be adjusted by the distribution and change rule, slow advancing is bad for the stability of roadway, and with rib spalling, fast advancing leads to stress concentration and coal and gas burst, which provided reference for efficient production of fully mechanized working face.