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A case study of land subsidence in southern Kunming downtown area
Author(s): 
Pages: 29-33
Year: Issue:  1
Journal: HYDROGEOLOGY & ENGINEERING GEOLOGY

Keyword:  地面沉降沉降模式层次分析沉降量计算昆明;
Abstract: 根据水准测量资料绘制了昆明南市区地面沉降等值线图,说明了区内地面沉降特征.然后对断陷盆地沉降模式进行探讨,阐明了岩溶水抽汲致使第四系土层固结压缩而产生沉降的原因.进而就地面沉降制约因素进行分析,得出了各制约因素的权重,明确指出地下水抽汲是地面沉降的主要诱发因素.最后,着重分析了小板桥沉降漏斗中心的形成机制,完成了极限沉降量估算,并预测了该沉降中心的发展趋势.
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