地下水开采引发地表沉陷损害问题探讨

Analysis of Surface Subsidence Induced by Underground Water Mining

列举了国内地下水开采造成地表沉陷和损害的许多实例,并从地下水所处的地层层位、载体物性、载体厚度、抽排方式和沉陷类型入手,分析了地下水开采地表沉陷发生机理。阐明了非固结厚浅层中地下水的开采是引起地表沉陷的主导因素,而地下水强排和特殊构造地层是诱发沉陷损害的主要原因。

Many domestic and overseas cases of surface subsidence and damage induced by underground water mining are enumerated in this paper and the surface subsidence mechanism induced by underground water mining is analyzed from the location of water-bearing stratum, physical characteristics of carrier, drifting manners and subsidence styles. It is clarified that the mining of underground water in non-concretion thick and low layer is the main factor of surface subsidence and compulsive drifting of underground water and special tectonic stratum are the main causes which result in cave-in damage.