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.
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