煤炭工程 ›› 2015, Vol. 47 ›› Issue (4): 35-37.doi: 10.11799/ce201504012

• 施工技术 • 上一篇    下一篇

瓦斯尾巷沿空留巷技术

田志刚,李宗岑,庞锦彪   

  1. 河南省平顶山市新华区平煤股份四矿
  • 收稿日期:2014-03-09 修回日期:2014-05-02 出版日期:2015-04-10 发布日期:2015-04-10
  • 通讯作者: 李宗岑 E-mail:121135900@qq.com

Gob-side Entry Retaining Technique of Degassing Entry

  • Received:2014-03-09 Revised:2014-05-02 Online:2015-04-10 Published:2015-04-10

摘要: 分析了平煤股份四矿戊8-19090瓦斯尾巷沿空留巷作为戊8-19070机巷全过程中的五个变形阶段,确定了尾巷掘进时采用锚网索支护,在其受采动影响前和二次采动影响前分别采用补打木垛和加密锚索、打贴帮柱的补强支护形式,并采用“编织袋装渣双层+遮挡布+双层料石墙+喷浆封堵技术”对尾巷联络巷进行了封堵,通过预埋注水管联孔注水防灭火技术确保了巷道不漏风,该沿空留巷技术为矿节约资金600余万元,缓解了四矿采掘接替紧张的局面。

关键词: 沿空留巷, 全锚支护, 补强, 封堵

Abstract: The five deformation stages of gob-side entry retaining for E8-19090 degassing entry in No.4 Colliery of Pingdingshan Coal Group Company were analyzed, and the all bolt support was determined as the support form for the E8-19090 degassing entry, the cable supplement support and packed nog support were used to resist the mining influence and second mining influence. The crossheadings of E8-19090 degassing entry were sealed well by the double sealing wall and shotcreting, ensuring the safe mining. About six millon RMB was saved through the gob-side entry retaining, besides relieving the alternation of extraction in No.4 Colliery.

Key words: gob-side entry retaining, all bolt support, supplement support, sealing

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