煤炭工程 ›› 2018, Vol. 50 ›› Issue (11): 14-17.doi: 10.11799/ce201811004

• 设计技术 • 上一篇    下一篇

综采工作面跨废弃井筒技术探析与应用

桑宗其   

  1. 煤炭工业太原设计研究院
  • 收稿日期:2017-12-18 修回日期:2018-02-02 出版日期:2018-11-20 发布日期:2018-12-25
  • 通讯作者: 桑宗其 E-mail:811045285@qq.com

Technology analysis and Application of fully mechanized mining face crossed abandoned shaft

  • Received:2017-12-18 Revised:2018-02-02 Online:2018-11-20 Published:2018-12-25

摘要: 针对后堡矿综采工作面回采中遇JH废弃井筒,在分析井筒、现有巷道及顶底板等开采技术条件基础上,提出综采工作面跨废弃井筒加固技术方案,即在井筒与煤层交汇处的底部采用井型木垛、锚网梁+混凝土浇筑加强支护,顶部采用锚网梁、锚索+弧形钢梁、井型钢梁、工字钢排梁密铺护顶及混凝土浇筑加强支护,形成主动支护与被动支护相耦合的整体支护方式,并在顶部充填马丽散的综合技术方案。工程实践证明,该技术方案即能保证综采工作面高效、安全、平稳跨过井筒,又能提高资源回收率,为类似条件矿井跨废弃井筒开采或回收井筒煤柱提供技术支持及施工借鉴。

关键词: 综采工作面, 废弃井筒, 加固技术, 耦合支护, 资源回收率

Abstract: In Houbu mine full mechanized mining in JH waste in wellbore and wellbore, analysis of the existing tunnel and the roof and floor mining technical conditions on the basis of the fully mechanized face reinforcement technology scheme of cross abandoned wellbore, namely in wellbore and coal seam at the confluence of the bottom by the well type of wood, anchor beam and concrete pouring strengthening support. At the top of the anchor beam and anchor + arc steel beam, steel beam, steel beam type row tile roof and concrete pouring strengthening support, the formation of active support and passive support coupled to the overall support, and technology at the top filling Ma Li powder comprehensive scheme. The engineering practice proves that the scheme can guarantee the fully mechanized mining face efficient, safe and stable across the shaft and can increase the recovery rate, and provide technical support and construction for the similar mine waste recycling or cross shaft mining shaft coal column.

中图分类号: