CO_2预裂增透技术在区域消突的应用  

Application of CO_2 Anti-reflection Pre-splitting Technique in Local Rockburst Elimination

作　　者：郭爱军[1,2] 令狐建设 孟秀峰 赵庆珍 温兆翠 曹代勇 GUO Ai-jun;LINGHU Jian-she;MENG Xiu-feng;ZHAO Qing-zhen;WEN Zhao-cui;CAO Dai-yong(Geoscience and Surveying Engineering School,China University of Mine Technology(Beijing),Beijing 100083,China;Shanxi Energy Institute,Jinzhong 030600,China;Shanxi Yangquan Coal Industry(Group),Yangquan 045000,China)

机构地区：[1]中国矿业大学(北京)地球科学与测绘工程学院,北京100083 [2]山西能源学院,山西晋中030600 [3]山西阳泉煤业(集团)有限责任公司,山西阳泉045000

出　　处：《煤矿开采》2018年第2期86-88,67,共4页Coal Mining Technology

基　　金：山西省煤层气联合研究基金资助项目(2015012013);山西能源学院院级科研基金(ZZ-2017002)

摘　　要：在寺家庄公司15203工作面回风巷进行CO_2预裂增透试验,施工10个瓦斯抽采孔,1个CO_2预裂孔,在预裂孔中进行2次CO_2预裂增透试验。通过试验数据的对比分析,CO_2预裂后,在卸压及CO_2置换和驱替共同作用下,预裂范围内的瓦斯含量快速下降,最大瓦斯含量从预裂前的12.2m3/t下降到预裂后的6.92m3/t。CO_2预裂钻孔工程量比常规措施钻孔减少了4.1倍;与常规措施相比,掘进效率提高了1.6倍。试验证明CO_2预裂增透能起到很好的瓦斯治理和区域消突作用。CO2 anti-reflection pre-splitting testing was successfully applied in ventilation roadway of 15203 working face in Sijiazhuang company,and about ten gas drainage holes and one CO2 pre-splitting hole were drilled,and then two CO2 anti-reflection pre-splitting testing were applied.According contrastive analysis of testing data,after CO2 anti-reflection pre-splitting,under action of pressure relief and replacement and displacement by CO2,gas content within pre-splitting scope declined quickly,the maximal content dropped from 12.2m 3/t to 6.92m 3/t,contrast engineering quality of CO2 pre-splitting drilling holes to normal holes,it decreased about 4.1 times,and driving efficiency improved about 1.6 times.The results showed that CO2 pre-splitting,anti-reflection technique was better to gas control and local rockburst elimination.

关 键 词：CO2预裂 增透 区域消突 掘进效率 

分 类 号：TD712.6[矿业工程—矿井通风与安全]