超长推进距离工作面双巷布置沿空掘巷技术及应用效果分析  

Technology and application effect analysis of gob-side entry driving for super-long two-entry longwall panel

作　　者：王志强[1] 苏越[1] 宋梓瑜[1] 石磊 孙中文[1] WANG Zhiqiang;SU Yue;SONG Ziyu;SHI Lei;SUN Zhongwen(College of Resource and Safety Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)

机构地区：[1]中国矿业大学(北京)资源与安全工程学院

出　　处：《岩石力学与工程学报》2018年第A02期4170-4176,共7页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金面上项目(51774289);国家自然科学基金青年科学基金项目(51404270);中央高校基本科研业务费专项资金项目(2011QZ06)~~

摘　　要：针对超长推进距离工作面双巷布置资源浪费严重、巷道支护难度大与沿空掘巷跳采易引发动力灾害几个问题展开研究。研究中,首先提出“超长推进距离工作面的双巷布置沿空掘巷顺采方法”申请发明专利技术,确定该技术在应用中需要解决的参数包括大、小煤柱尺寸、掘进工作面滞后上一工作面与超前本工作面的距离。在此基础上,结合实际工程背景,采用理论分析与现场实测2种方法,分别给出大、小煤柱尺寸、滞后上一工作面、超前本工作面距离的确定方法与具体数据。最后,通过现场实测发现,采用新技术后,在类比原支护方案与参数的沿空掘巷变形量小,满足使用要求,且单工作面即可创造经济效益880万元。研究成果可进一步为该矿5.7m厚、推进距离5200m的5#煤层回采工作面及具有类似地质、回采技术条件的矿井提供工程依据。This paper focuses on these problems which are serious waste of resources in super-long two-entry longwall panel,supporting difficultly and suffering power disaster because of jumping mining. In the study,the invention patent“Sequential extraction technology for super-long two-entry longwall panels”firstly proposed, which indicates that it needs to give the suitable parameters including the sizes of the big coal pillar and the small coal pillar,the delayed distance of the gob-side gateroad heading to the working face of the initial panel and the advanced distance of the heading to the working face of the successive panel in engineering practice. Using theoretical analysis and field measurement,the method determining the above parameters and the precise data are gived by combining with the actual engineering background. Next,comparing with original support scheme and parameters,the deformation of the gateroad along gob-side with new technology becomes small by field measurements,which not only meets the need but also creates 880 million yuan of economic benefits in single panel. The results of the study can further provide engineering basis for the mine with the coal seam #5 of 5.7 m thickness and 5 200 m long and similar geological and mining conditions.

关 键 词：采矿工程 超长推进距离 双巷布置 沿空掘巷 顺序开采 

分 类 号：TD32[矿业工程—矿井建设]