温庄煤业氮气预裂断层岩石技术应用  

Application of Nitrogen Presplitting Fault Rock Technology in Wenzhuang Coal Industry Co.,Ltd.

作　　者：李庆林 李淑玉 李春睿 LI Qinglin;LI Shuyu;LI Chunrui(Shanxi Lu'an Wenzhuang Coal Industry Co.,Ltd.,Changzhi 046000,Shanxi,China;CCTEG Coal Mining Research Institute,Beijing 100013,China)

机构地区：[1]山西潞安温庄煤业有限责任公司,山西长治046000 [2]中煤科工开采研究院有限公司,北京100013

出　　处：《能源与节能》2024年第8期194-197,共4页Energy and Energy Conservation

摘　　要：分析了氮气预裂技术在温庄煤业快速过断层岩石中的应用,提出了高能氮气预裂断层坚硬岩石的方法,给出了合理的预裂参数。实践表明:采用氮气预裂技术不但避免了传统炸药的弊端,而且致裂缝展长达0.8 m,岩石碎裂块度控制在300~500 mm,预裂效果好;采高3 m左右的煤壁施工3排钻孔后采煤机可顺利截割并快速通过断层岩石区,且基本没有额外的截齿损耗,达到了预期效果,为周边煤矿快速预裂断层坚硬岩石提供了参考。The application of nitrogen presplitting technology in the rapid passage of fault rocks in Wenzhuang Coal Industry Co.,Ltd.was analyzed,a method of high-energy nitrogen presplitting hard rock was proposed,and reasonable presplitting parameters were provided.Practice showed that using high-energy nitrogen presplitting technology not only eliminated the drawbacks of traditional explosives,but also led to a crack length of 0.8 m,rock block size of 300-500 mm,and good presplitting effect;after constructing 3 rows of boreholes on the coal wall with a mining height of about 3 m,the coal mining machine can smoothly cut and quickly pass through the fault rock area without any additional tooth loss,achieving the expected effect,which can provide a reference basis for rapid presplitting hard fault rocks in the surrounding coal mines.

关 键 词：氮气预裂 断层 坚硬岩石 爆破裂隙 

分 类 号：TD235.3[矿业工程—矿井建设]