廖海军, 祁生文, 祁生林, 赵忠海. 2010: 北京市门头沟规划新城国矿采空区引起地面变形的预测研究. 工程地质学报, 18(S1): 132-137.
    引用本文: 廖海军, 祁生文, 祁生林, 赵忠海. 2010: 北京市门头沟规划新城国矿采空区引起地面变形的预测研究. 工程地质学报, 18(S1): 132-137.
    LIAO Haijun, QI Shengwen, QI Shenglin, ZHAO Zhonghai. 2010: SUBSIDENCE DEFORMATION INDUCED BY UNDERMINED AREA OF NATIONAL COALMINE CORPORATION IN UNDERPLANNED NEW CITY OF NENTOUGOU DISTRICT,BEIJING. JOURNAL OF ENGINEERING GEOLOGY, 18(S1): 132-137.
    Citation: LIAO Haijun, QI Shengwen, QI Shenglin, ZHAO Zhonghai. 2010: SUBSIDENCE DEFORMATION INDUCED BY UNDERMINED AREA OF NATIONAL COALMINE CORPORATION IN UNDERPLANNED NEW CITY OF NENTOUGOU DISTRICT,BEIJING. JOURNAL OF ENGINEERING GEOLOGY, 18(S1): 132-137.

    北京市门头沟规划新城国矿采空区引起地面变形的预测研究

    SUBSIDENCE DEFORMATION INDUCED BY UNDERMINED AREA OF NATIONAL COALMINE CORPORATION IN UNDERPLANNED NEW CITY OF NENTOUGOU DISTRICT,BEIJING

    • 摘要: 门头沟规划新城位于门头沟区东南,主要包括龙泉、永定两镇,总面积87km2,该区地下有大面积国矿采空分布,地下采空对地面变形的影响变得非常敏感。本文在对国矿采空区分布资料分析的基础上,利用FLAC3D拉格朗日元分析技术,建立了大型复杂三维数值模型,预测了地下采空引起的地面变形分布。分析认为,国矿采空引起的地面变形主要集中在天桥浮官厅一带、岳家坡赵家洼一带,沉降最大量值28mm,并且分布的范围有限。

       

      Abstract: Underplanned Mentougou new city located in the SE of Mentougou district,includes Longquan and Yongding two counties and covers an area of 87km2.There is large undermined area of National coalmine corporation distributed.The subsidence deformation induced by the large undermined area is very sensitive to the undergoing plan of the city.The paper studies the distribution of the undermined area,and builds a large numerical simulation model with FLAC3D based on large amount of data of boreholes and maps.The numerical simulation results indicate that the main subsidence deformation induced by the undermined area concentrated at the Tiaoqianfu-Guanting and Yuejiapo-Zhaojiawa,and the maximum subsidence deformation reaches 28mm with limited area.

       

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