巨厚冲积层薄基岩煤层底板区域防治水地面定向钻探技术  

Ground Directional Drilling Technology to Regional Water Disaster Prevention and Control of Coal Seam Floor with Thick Alluvium and Thin Bedrock

作　　者：田乐 孙晓宇 TIAN Le;SUN Xiao-yu(National Engineering Laboratory for Deep Shaft Construction Technology in Coal Mine,Beijing 100013,China;Beijing China Coal Mine Engineering Co.,Ltd.,Beijing 100013,China)

机构地区：[1]煤矿深井建设技术国家工程实验室,北京100013 [2]北京中煤矿山工程有限公司,北京100013

出　　处：《煤炭技术》2020年第4期111-113,共3页Coal Technology

基　　金：国家安全生产监督管理总局2017年重大事故防治关键技术科技资助项目(yangqi-0012-2017AQ);北京中煤矿山工程有限公司自立科技项目重点项目资助(BMCKY011802)。

摘　　要：赵固一矿18011工作面上覆巨厚冲积层,煤层顶板基岩较薄,应用地面定向钻探注浆技术改善采煤工作面底板状况,消除煤炭开采时底板突水水害威胁。通过应用地面多分支定向钻孔技术,全面覆盖工作面探查治理区域,有效降低钻探施工成本,提高施工效率。通过选择"绿色"钻井液处理剂并进行分段钻井液设计,有效降低钻探施工对环境的影响,避免钻探事故,克服钻探技术难题。In Zhaogu No.1 coal mine,18011 working face is covered with thick alluvium,and the roof bedrock of coal seam is thin. The ground directional drilling grouting technology is applied to improve the floor condition of coal mining face and eliminate water inrush from floor during mining. Through the application of ground multi-branch directional drilling technology,the exploration and treatment area of the working face can be covered comprehensively,the drilling construction cost can be effectively reduced and the construction efficiency can be improved. By choosing "green" drilling fluid treatment agent and designing subsection drilling fluid,the influence of drilling construction on environment is effectively reduced, drilling accidents are avoided and drilling technical problems are overcome.

关 键 词：巨厚冲积层 薄基岩 煤层底板 区域防治水 

分 类 号：TD745[矿业工程—矿井通风与安全]