华电技术 ›› 2017, Vol. 39 ›› Issue (11): 36-38.

• 技术交流 • 上一篇    下一篇

煤层为主要含水层矿井揭煤方案研究

  

  1. 陕西华电榆横煤电有限责任公司,陕西榆林〓719000
  • 出版日期:2017-11-25 发布日期:2017-12-21

Basal water coal seam uncovering plan study

  1. Shanxi Huadian Yuheng Coal and Power Company Limited, Yulin 719000, China
  • Online:2017-11-25 Published:2017-12-21

摘要:

根据小纪汗煤矿井田地质报告,矿井属水文地质简单矿井,但进风立井井筒在揭露煤层时发生涌水情况,水量达89m3/h以上,水压达2.3MPa,井筒无法继续施工。经过论证,小纪汗煤矿 #2煤层为主要含水层,煤层水主要为静储水。通过采取优化巷道布置、增加临时排水系统能力、井下与地面钻孔疏放水等措施,保证回风大巷在含水层中顺利落底揭煤。

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Abstract:

According to the geographic report of Xiaojihan Coal Mine, this mine is simple mine in hydrogeology. Water burst happen in vertical ventilation shaft at coal uncovering layer. Water flow is 89m3/h, 2.3MPa. It was proved that Xiaojihan Coal Mine coal seam No.2 is main aquifer. Coalbed water is mainly static water. After improving roadway alignment, adding temporary drainage system and drilling drainage from ground and underground, it was successfully uncovered at aquifer.

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