• 論文
主辦單位:煤炭科學研究總院有限公司、中國煤炭學會學術期刊工作委員會
覆巖導水裂隙帶發育高度動態演化規律研究
  • Title

    Study on dynamic evolution law of development height of overburden water-flowing fractured zone

  • 作者

    趙兵朝馮杰趙陽侯恩科馬云祥馮欣怡

  • Author

    ZHAO Bingchao;FENG Jie;ZHAO Yang;HOU Enke;MA Yunxiang;FENG Xinyi

  • 單位

    西安科技大學 能源學院西安科技大學 西部礦井開采及災害防治教育部重點實驗室西安科技大學 地質與環境學院國能寧夏煤業集團有限責任公司 紅柳煤礦

  • Organization
    School of Energy Engineering, Xi’an University of Science and Technology
    Key Laboratory of Western Mine Exploitation and Hazard Prevention, Ministry of Education, Xi’an University of Science and Technology
    School of Geology and Environment, Xi’an University of Science and Technology
    Hongliu Coal Mine, Guoneng Ningxia Coal Industry Group Co., Ltd.
  • 摘要

    為了研究覆巖導水裂隙帶發育高度動態演化規律,以小保當礦區2?2煤層為研究對象,通過理論分析、相似模擬實驗及實例驗證的方法,對導水裂隙帶動態發育高度進行研究;借助概率積分法預計其上部巖層移動變形的理論公式,給出了1種基于覆巖曲率變形的導水裂隙帶動態發育高度預計方法。研究表明:導水裂隙帶上部巖層下沉系數是1個與撓度及下部自由空間高度相關的分段函數,上部巖層曲率變形大小是決定導水裂隙帶發育高度的關鍵因素;導水裂隙帶發育高度與工作面推進長度相關;理論預計小保當礦區2?2煤層導水裂隙帶發育高度為160.8 m,相似模擬實驗發育高度為155 m,現場實測發育高度為152.01~175.57 m。

  • Abstract

    In order to study the dynamic evolution law of the development height of overburden water conducting fractured zone, taking 2?2 coal seam in Xiaobaodang Mining Area as the research object, the dynamic development height of water conducting fractured zone was studied by theoretical analysis, similar simulation experiment and case verification; a prediction method of dynamic development height of water-flowing fractured zone based on curvature deformation of overburden strata is proposed by using the theoretical formula of predicting the movement and deformation of upper strata with probability integral method. The research shows that the subsidence coefficient of the upper strata of the water-conducting fractured zone is a piecewise function related to the deflection and the height of the lower free space. The curvature deformation of the upper strata is the key factor to determine the development height of the water-conducting fractured zone. The development height of water-flowing fractured zone is related to the advance length of working face; the theoretical prediction of the development height of the water conducting fractured zone in 2?2 coal seam of Xiaobaodang Mining Area is 160.8 m, the development height of the similar simulation experiment is 155 m, and the development height of the field measurement is 152.01-175.57 m.

  • 關鍵詞

    導水裂隙帶動態演化下沉系數曲率變形概率積分法

  • KeyWords

    water-conducting fractured zone;dynamic evolution;subsidence factor;curvature deformation;probability integral method

  • 基金項目(Foundation)
    國家自然科學基金資助項目(51874230, 52074208)
  • DOI
  • 引用格式
    趙兵朝,馮杰,趙陽,等. 覆巖導水裂隙帶發育高度動態演化規律研究[J]. 煤礦安全,2024,55(2):176?183.
  • Citation
    ZHAO Bingchao, FENG Jie, ZHAO Yang, et al. Study on dynamic evolution law of development height of overburden water-flowing fractured zone[J]. Safety in Coal Mines, 2024, 55(2): 176?183.
  • 相關文章
  • 圖表
相關問題

主辦單位:煤炭科學研究總院有限公司 中國煤炭學會學術期刊工作委員會

©版權所有2015 煤炭科學研究總院有限公司 地址:北京市朝陽區和平里青年溝東路煤炭大廈 郵編:100013
京ICP備05086979號-16  技術支持:云智互聯
無码高清中文字幕_国产成人av国语在线观看_中文字幕无码中文幕_东京热高清无码系列