高水压矿井挡水墙设计与数值建模分析
Design and Numerical Modeling Analysis of Water-retaining Wall for High Water Pressure Mine
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摘要: 基于徐州某矿水文地质与工程地质条件，设计了高水压条件下挡水墙的结构形式，拟采用倒截锥形挡水墙，并利用三维数值方法对其稳定性进行了模拟分析，主要研究挡水墙及围岩在设计水压6 MPa作用下的应力、应变及位移变化情况，并与3、10.8 MPa水压时的情况进行对比，得出所设计的挡水墙在10.8 MPa的高水压下挡水墙墙体单元仍无明显位移、应变变化，符合安全生产要求，为矿井在施工水压达6 MPa的挡水墙设计提供了理论基础和依据。Abstract: Based on the hydrogeological and engineering geological conditions of a mine in Xuzhou, it designed the structure of water-retaining wall under the condition of high water pressure, and it carried out simulation analysis for the stability of this structure by using inverted truncated cone-shaped water-retaining wall and three-dimensional numerical method. It mainly studied the changes of stress, strain and displacement of water-retaining wall and the surrounding rock under the water pressure of 6 MPa, compared with the situation under the water pressure of 3 MPa and 10.8 MPa, it obtained that there was no noticeable displacement and strain variation for the water-retaining wall unit under the high water pressure of 10.8 MPa, which met the requirements of safety production, and provided theoretical basis and foundation for water-retaining wall design of 6 MPa water pressure in the construction of the mine.
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Keywords:
- water-retaining wall /
- design /
- numerical simulation /
- safety /
- high water pressure
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[1] GB50416-2007 煤矿矿井井底车场硐室设计规范[S]. [2] 布赫曼，莫的特洛科夫.矿井密闭工程[M].北京：中国工业出版社，1964. [3] 段全江，别小勇，刘志强,等．矿山井下防水水闸墙厚度计算方法的探讨[C]//全国矿山建设学术会议论文选集，2004． [4] 胡锡銮．防水闸门硐室计算方法探讨[J]．有色金属：矿山部分，1983(3)：55-58. [5] 龙卿吉，张福斌．挡水墙设计及施工中的几个问题[J]．江西煤炭，2001(3)：18-20. [6] 任向阳．挡水墙在施工及设计中应注意的问题[J]．硅谷，2008(14)：72． [7] 彭文斌．FLAC3D实用教程[M]．北京：机械工业出版社，2007． [8] 张悦煌．防水闸门硐室设计体系的探讨[J]．有色金属：矿山部分，1975(6)：52-55． [9] 陈育民．FLAC/FLAC3D基础与工程实例[M]．北京：煤炭工业出版社，1988. [10] Wanghua Sui ，Jinyuan Liu ，Siguang Yang.Hydrogeological analysis and salvage of a deep coalmine after a groundwater inrush[J]．Environ Earth Sci,2011：735-749．
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