煤矿井下硬岩层快速成孔钻进技术与发展趋势  

Fast drilling technology and development tendency of hard rock in underground coal mine

作　　者：杨冬冬 赵江鹏 赵建国 王四一 YANG Dongdong;ZHAO Jiangpeng;ZHAO Jianguo;WANG Siyi(Xi’an Research Institute,China Coal Technology and Engineering Group,Xi’an 710077,China)

机构地区：[1]中国煤炭科工集团西安研究院有限公司

出　　处：《煤炭科学技术》2019年第12期136-140,共5页Coal Science and Technology

基　　金：国家重点研发计划资助项目(2017YFC0804102-02)

摘　　要：为解决煤矿井下硬岩钻进效率低、成孔速度慢、施工周期长、钻具寿命低等问题,配有辅助碎岩工具的快速钻进技术在我国诸多煤矿井下防治水钻孔施工、高位钻孔施工中获得了广泛的应用并取得了重要进展。根据煤矿井下硬岩钻孔施工工艺的发展情况,结合阀式低压液动潜孔锤、射流式液动潜孔锤及液动扭力冲击器3种辅助碎岩工具,介绍了煤矿井下硬岩层快速成孔钻进技术,概述各自的技术原理、技术特点和应用概况;总结了阀式低压液动潜孔锤、射流式液动潜孔锤及液动扭力冲击器钻进技术的发展历程和不足之处;结合上述3种辅助碎岩工具在各矿区的具体应用情况,指出3种辅助碎岩工具在煤矿井下硬岩层钻进过程中出现的问题及原因,并针对性地提出解决方案;最后指出了煤矿井下硬岩层快速成孔钻进技术的发展方向,并为加速煤矿井下硬岩层定向钻进技术的发展提出了相关建议,为煤矿井下硬岩钻探技术的发展提供参考。In order to solve the problems of low drilling efficiency,slow hole forming rate,long construction period and low life of drilling tools during drilling hard rock in underground coal mine,fast drilling technology with auxiliary rock-breaking tools has been widely applied in mine water management borehole and high level borehole,which made important progress in many coal mines in China.According to the development of drilling technology for hard rock in underground coal mine,the paper introduced the fast drilling technology of hard rock in the underground coal mine combined with low pressure valve hydraulic hammer,fluidic hammer with high impact energy and hydraulic torque impactor three kinds of auxiliary rock-breaking tools and stated each principle,technical features and application situation.The paper summarized the development progress and shortages existed in low pressure valve hydraulic hammer,fluidic hammer with high impact energy and hydraulic torque impactor.Combining with the specific application of the above three kinds of drilling tools in the mining areas,the paper pointed out the problems and causes in the process of drilling hard rock in the underground coal mine,and also proposed targeted solutions.Finally,the paper pointed out the development direction of the fast drilling technology of hard rock in the underground coal mine and provided relevant suggestions to accelerate the development of directional drilling technology in the underground coal mine,which also provided reference for the development of hard rock drilling technology in underground coal mine.

关 键 词：硬岩层 阀式低压液动潜孔锤 射流式高压液动锤 液动扭力冲击器 钻进 

分 类 号：TD41[矿业工程—矿山机电] P634[天文地球—地质矿产勘探]