煤炭工程 ›› 2024, Vol. 56 ›› Issue (5): 63-68.doi: 10.11799/ce202405010

• 施工技术 • 上一篇    下一篇

定向深孔探放水技术在平煤五矿的应用

王 猛,刘军亮,和 平,张 影,朱景佩   

  1. 平顶山天安煤业股份有限公司,河南 平顶山 467091
  • 收稿日期:2022-05-17 修回日期:2024-04-01 出版日期:2023-05-20 发布日期:2025-01-03
  • 通讯作者: 王猛 E-mail:wangmeng2010v@163.com

Application of directional deep-hole water exploration and release technology in Pingmei No. 5 Mine#br# #br#

  • Received:2022-05-17 Revised:2024-04-01 Online:2023-05-20 Published:2025-01-03

摘要:

为了解决平煤五矿上层煤采空区积水威胁到下层煤开采的问题,对当前采空区积水空间位置及积水量进行分析,从经济性、合理性以及时间效应三个方面对三种排水方案进行比选,分析了定向深孔探放水技术相较于常规钻孔探放水技术具有的优势,最终确定定向深孔探放水技术为最优方案。基于此,研究了定向深孔探放水技术的设计方案及施工工艺,并进行现场应用试验,同时采用了固安特封孔技术,与传统水泥浆封孔技术相比缩短了88%的封孔时间,累计排放采空区积水量近30000m3,解决了己15 -32020采空区水害问题,掩护了巷道安全掘进。

关键词: 探放水, 定向钻探, 矿井水害, 封孔工艺

Abstract:

In order to address the threat posed by water accumulation in the upper goaf of the Pingmei No. 5 Mine to the lower coal mining, an analysis of the spatial position and volume of water accumulation in the current goaf was conducted. Three drainage schemes were compared from the aspects of economy, rationality, and time efficiency. The advantages of directional deep-hole exploration and water release technology over conventional drilling exploration and water release technology were analyzed, and directional deep-hole exploration and water release technology was ultimately determined to be the optimal solution. Based on this, the construction process of this technology was introduced, and the scheme was designed and implemented in the field. Three drilling schemes were completed on-site: Scheme one: angle 11°, hole depth 280 m; Scheme two: drilling angle 9°, hole depth 280 m; Scheme three: drilling angle 6°, hole depth 271 m. Meanwhile, the use of Grouting Technology shortened the plugging time by 88% compared to traditional cement slurry plugging technology, and approximately 30,000 m3 of water was discharged from the goaf, solving the water hazard problem in the Ji15-32020 goaf. This achieved economically efficient prevention and control of mine water hazards and ensured the safe advancement of the roadway. It provides certain reference significance for the construction of directional deep-hole exploration and water release projects in mines under similar conditions.

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