摘要
分析了仰斜开采孤岛工作面煤壁片帮的机理,在此基础上制定了防治方案,其次通过钻孔窥视及超声检测技术对所实施的方案进行了检测,肯定了浆液对煤壁加固的效果,但同时发现此注浆方案对煤壁的加固范围不能满足单个日进度,从而又提出了注浆优化方案,补充了原方案的不足。研究结果表明,煤炭开采中首先选择避开孤岛面和大倾角仰斜开采,否则需采用合理有效的注浆加固方案。
The mechanism of coal wall spalling in isolated up-dip mining face is analyzed, based on which, the paper puts forward a scheme to prevent that phenomenon, and then, the implementation of it is tested through borehole peering and ultrasonic detecting technology, and the grouting reinforcement effect is affirmed. But meanwhile, it is found that the reinforced scope of the coal wall under the grouting scheme can＇t satisfy the daily progress, so, an optimization scheme is proposed to make up for the deficiency of the original one. The research result shows that in coal mining, the isolated face and up-dip mining with large inclined angle should be avoi- ded first, or, the reasonable and effective grouting reinforcement scheme will be essential.
出处
《中国煤炭》
北大核心
2013年第5期48-51,共4页
China Coal
基金
中央高校基本科研业务费资助项目(2011YZ05)
大学生创新性实验计划(110106z)
关键词
工作面开采
仰斜开采
孤岛工作面
煤壁片帮
注浆加固
优化方案
mining face, up-dip mining, isolated mining face, coal wall spalling, grouting reinforcement, optimization scheme
作者简介
成辰欣（1988－），男，山西晋城人，中国矿业大学（北京）在读硕士研究生，主要从事矿压及放顶煤方面的研究。
