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地压、地温和瓦斯是煤矿深部开采的三大障碍。随着煤矿开采深度的不断增加,深部开采技术越来越引起国内外采矿界的重视。国外煤矿开采深度最大的是西德,1985年平均采深900m,最大采深1440m,目前正在准备开采1600m深处的煤层。我国开滦、北票等老矿区,开采深度也已达800～1000m。本文参考国内外深部巷道地压的一些资料,对徐州矿区深部巷道地压及其支护谈谈个人浅见,供探讨。
Ground pressure and geothermal gas are the three major obstacles in the deep mining of coal mines. With the continuous increase of mining depth, deep mining technology has drawn more and more attention from the mining community at home and abroad. The largest mining depth of foreign coal mines is West Germany. In 1985, the average mining depth was 900 m and the maximum mining depth was 1,440 m. Coal mines at a depth of 1,600 m were currently being prepared for mining. China’s Kailuan, Beipiao and other old mines, mining depth has reached 800 ~ 1000m. In this paper, some information about the pressure of deep roadway at home and abroad is referenced to discuss the ground pressure and its support of deep roadway in Xuzhou mining area for discussion.