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河床下伏采空区岩移规律及治理方案研究

Research on the Law of Golf Ground Movement under the Riverbed and the Treatment Scheme
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摘要 将有限元数值计算应用于西石门铁矿河床下伏采空区地表沉降规律的研究。对比钻孔资料可以认为,该方法能有效预测矿体采动引起的地表沉陷范围和发展趋势。在预测分析的基础上,从采空区充填、浅部裂隙注浆和表层封闭3个层次治理河床及下伏采空区,并通过数值计算验证了整理方案的有效性。 The FEM is applied in research of surface subsidence rule at goaf under the riverbed in Xishimen iron ore. In comparison with the drilling data, it is considered that this method can effectively predict the scope and trends of surface subsidence caused by mining. Based on the forecast analysis, the riverbed and the goaf under riverbed are treated from three aspects of goaf's filling, shallow fissure grouting and surface sealing, and the scheme above is verified to be effective through numerical calculation.
作者 张玉福
出处 《金属矿山》 CAS 北大核心 2013年第11期5-9,共5页 Metal Mine
关键词 河床下伏采空区 数值计算 地表沉陷 尾砂胶结充填 Goaf under the riverbed, Numerical calculation, Ground subsidence, Tailing-cemented filling
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