煤炭工程 ›› 2020, Vol. 52 ›› Issue (8): 133-137.doi: 10.11799/ce202008028

• 研究探讨 • 上一篇    下一篇

废弃煤矿压缩空气储能地质安全稳定性分析

王帅1,蒲宝基2,蹇军强2,宋立平1,李瑞华1,李庆1   

  1. 1. 中煤能源研究院有限责任公司
    2. 中国中煤能源集团有限公司
  • 收稿日期:2020-01-19 修回日期:2020-04-07 出版日期:2020-08-14 发布日期:2020-11-23
  • 通讯作者: 王帅 E-mail:ronaldo13579@163.com

Geological safety and stability analysis on compressed air energy storage of abandoned coal mine

  • Received:2020-01-19 Revised:2020-04-07 Online:2020-08-14 Published:2020-11-23

摘要: 为解决去产能废弃矿井的再利用问题,根据压缩空气储能的技术特点,提出了利用废弃煤矿的深地空间进行压缩空气储能的五个原则和要求,并针对具体矿井计算了可作为压缩空气储能的地下可利用空间,提出了用于选取合适储气压力区间的四个稳定性评价准则,利用FLAC3D数值模拟软件对新集三矿地下可利用空间建立了数学模型,对主、副井筒以及-340m水平巷道和硐室在10.8MPa下支护前后的地质安全稳定性进行了数值模拟分析。研究结果表明:在10.8MPa的压力范围内,经过支护、加固后的井筒、巷道和硐室,可以满足压缩空气储能的安全稳定性要求,这为利用废弃矿井进行压缩空气储能提供了研究基础和理论依据。

关键词: 压缩空气储能, 废弃煤矿, 安全稳定性, 深地空间

Abstract: To solve the reuse of increasing number of abandoned coal mine, five principles and requirements of taking advantage of underground space of abandoned coal mine have been proposed based on the technical route of compressed air energy storage. For the abandoned Xinji NO. 3 coal mine, available underground space has been calculated and four safety stability evaluation criteria have been put forward for the purpose of selecting proper pressure range of air storage. Otherwise, FLAC 3D software was used to establish mathematical model and analyze the geological safety and stability of the wellbore and different levels of roadways and caverns under 8~10.8 MPa. The results showed that compressed air energy storage in deep underground space of abandoned coal mine can meet the safety and stability requirements of air storage within 10.8MPa after strengthening, which provides the research foundation and theoretical basis for compressed air energy storage in underground space of abandoned coal mine.

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