特厚煤层综放工作面窄煤柱沿空掘巷技术  

Narrow-Coal-Pillar Gob-side Entry Driving Technology in Fully-mechanized Caving Face with Ultra-thick Coal Seam

作　　者：薛向泽 Xue Xiangze(Pangpangta Colliery,Lvlin Energy Chemical Co.,Ltd.,Huozhou Coal&Electricity Group,Linxian,Shanxi 033200)

机构地区：[1]霍州煤电集团吕临能化有限公司庞庞塔煤矿,山西临县033200

出　　处：《江西煤炭科技》2024年第3期79-82,共4页Jiangxi Coal Science & Technology

摘　　要：为解决庞庞塔矿综放工作面沿空巷道变形较大、资源浪费较严重的问题,以9-301综放工作面为工程背景,借助数值模拟、工程类比、现场实测等手段对沿空巷道煤柱宽度及支护方案展开研究,结果表明:9 m煤柱整体承载性能优于其他留设方案,有利于巷道的支护;采用高强预应力锚网索非对称支护方案有效将巷道表面变形量控制在设计允许范围内,提高了资源利用率并降低巷道维护难度。Aiming at the large deformation and serious resource waste in gob-side entry at 9-301fully mechanized caving face in Pangpangta Colliery,the author probes into the coal pillar width and support scheme of gob-side entry by means of numerical simulation,engineering analogy and field measurement,whose results show that:the overall bearing performance of 9-meter coal pillars is superior to other schemes,which was conducive to the roadway support;the asymmetric support scheme of high-strength prestressed anchor net cable can effectively controlled the roadway surface deformation within the design allowed range,improving the resource utilization rate and reduced the difficulty of roadway maintenance.

关 键 词：特厚煤层 窄煤柱 工程类比 

分 类 号：TD822.3[矿业工程—煤矿开采] TD353[矿业工程—矿山开采]