摘要
从苏南地区的地层结构特点出发，指出具中等压缩的粘土和砂土互层的地层结构是地面沉降的内因，而抽取地下水及地面荷载的增长是地面沉降的外因。分析几个地面沉降的力学机理，并从岩土工程角度出发，阐述沉降机理、数学模型等当前地面沉降中亟需研究的问题。
Based on the seratigraphic structure in southern Jiangsu, it is regarded that the moderately compressible interbedded soil and sand are the internal factors,and the withdrawal of groundwater and the additional surface loading are the external factors,causing ground subsidence.The mechanical mechanism of ground subsidence is analysised,and the effect of mechanism and mathmatic model of ground subsidence are elucidated from the point of geotechnical engineering.It is pointed that we can only take some inactive measurements to control the ground subsidence in southern Jiangsu at present stage.
出处
《地质灾害与环境保护》
1999年第3期66-71,共6页
Journal of Geological Hazards and Environment Preservation
关键词
地面沉降
地层结构
地下水
苏南地区
ground subsidence
stratigraphic structure
groundwater
