迁安市长城金矿Ⅰ号矿体帷幕注浆工程超硬地层的钻探施工方法  

Drilling methods for ultra-hard stratum for the curtain grouting project of No.Ⅰ ore body of Great Wall Gold Mine,Qian’an

作　　者：卫强 陈伟武 WEI Qiang;CHEN Weiwu(Geological Team 217, Shanxi Provincial Geological Prospecting Bureau, Datong Shanxi 037008, China)

机构地区：[1]山西省地质勘查局二一七地质队

出　　处：《探矿工程（岩土钻掘工程）》2019年第5期48-51,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：迁安市长城金矿Ⅰ号矿体帷幕注浆工程是一大型的帷幕注浆项目,该矿区地质结构复杂,施工中帷幕钻孔钻遇白云岩超硬"打滑"地层,该地层钻进进尺缓慢,对项目工期影响很大,故在施工过程中针对该地层采用各种施工工艺进行试验,并以实际钻进过程中采集的钻头类型、钻进工艺及钻进参数等数据,分析得出一套最有效的钻探方法,为该地区日后矿区勘查、二期帷幕钻探施工提供参照依据。The curtain grouting project of No. I ore body of Great Wall Gold Mine in Qian’an is of a large-scale, and the geological structure of this mine area is complex. When curtain drilling entered the ultra-hard "slippery" dolomite stratum, the penetration rate became low, which greatly affected the construction schedule. Therefore, various construction technologies have been tested for this stratum in the drilling process, and with the analysis based on the data collected about drill bit types, drilling technologies and drilling parameters in the real drilling process, the most effective drilling methods have been established, which can provide good reference for future prospecting and the second stage curtain drilling project in this area.

关 键 词：迁安市长城金矿Ⅰ号矿体 帷幕注浆 超硬地层钻进 钻头类型 转速 磨料 

分 类 号：P634[天文地球—地质矿产勘探]