准格尔矿区煤矿井下水害综合防治技术  

Comprehensive prevention and control technology of underground water disaster in Zhunger Mining Area

作　　者：王庆 WANG Qing(China Coal Technology and Engineering Group Xi’an Research Institute,Xi’an 710077,China)

机构地区：[1]中煤科工集团西安研究院有限公司,陕西西安710077

出　　处：《煤矿安全》2021年第6期104-108,共5页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(41974162);国家重点研发计划资助项目(2017YFC0804105);陕西省自然科学基金青年科学基金资助项目(2020JQ-995)。

摘　　要：针对准格尔矿区某煤矿井下工作面顶底板水害防治形势严峻,单一探测技术手段不足以满足目前防治水需求的问题;提出采用井下音频电穿透和槽波地震勘探技术初步圈定异常区、地球化学水质化验技术结合定向钻探技术探查异常区的综合勘探技术,运该综合勘探技术,在该矿井下某工作面圈定低阻异常带和槽波能量强衰减区,运用定向钻进技术钻进至圈定异常区,水质化验数据表明定向钻孔出水中的Cl-含量明显高于常规顶板砂岩水;通过定向钻孔采用地面-井下联合注浆方式对异常区进行注浆加固防治,共注水泥浆457.5 t。实际揭露结果表明该区域为地质异常体且地层紊乱,工作面未发生底板奥灰水导水现象;取心钻孔可见水泥样,表明注浆水泥对破碎地层进行了有效胶结固化;该工作面的安全回采表明综合勘探及防治技术在水害防治领域的可行性。In view of the serious situation of water disaster prevention and control of the roof and floor of a coal mine in Zhunger Mining Area, a single detection technology is not enough to meet the current water control requirements. A comprehensive exploration technology is proposed to preliminarily delineate the abnormal area by underground audio frequency electric penetration and slot wave seismic exploration technology, and to explore the abnormal area by geochemical water quality test technology combined with directional drilling technology. Using the comprehensive exploration technology, a low resistivity abnormal zone and a strong attenuation area of trough wave energy were delineated in a working face of the mine. The directional drilling technology was used to drill the delineated abnormal area. The water quality test data showed that the Cl-content in the water from the directional drilling was significantly higher than that in the conventional roof sandstone water, and 457.5 t cement slurry was injected. The actual exposure results show that the area is a geological abnormal body and the stratum is disordered. There is no water conducting phenomenon of Ordovician limestone water in the working face. The cement sample can be seen in the core drilling, which indicates that the grouting cement has effectively cemented and solidified the broken stratum. The safe mining of the working face shows the feasibility of comprehensive exploration and prevention technology in the field of water disaster prevention and control.

关 键 词：水害防治 综合勘探 音频电穿透 槽波地震勘探 定向钻进 地质异常体 

分 类 号：TD745.2[矿业工程—矿井通风与安全]