长江堤防岸坡水下垂直开挖面附近深层水平位移与水位动态关系研究

Study of Dynamic Relationship Between Deep Horizontal Displacement and Water Level Near Underground Water Vertical Excavation of the Yangtze River Embankment Slope

该文依据南京长江某段堤防岸坡水下垂直开挖后土体深层水平位移、地下水及长江水位的监测数据,分析研究了水下开挖面附近深层水平位移变化与长江水位变化之间的关系,建立了长江水位与土体深层水平位移之间关系的数学模型。研究认为,在测斜管的底部大约1/3以下,土体水平位移基本不受水位变化的影响,在测斜管底部1/3以上,土体水平位移受水位变化呈负相关关系。

In this paper,the relationship between the changing of deep horizontal displacement near the underwater excavation and the changing of water level of the Yangtze River is analyzed,the mathematical model of the relationship between the Yangtze River water level and the horizontal displacement of the deep soil is established based on the monitoring data of the deep horizontal displacement,groundwater and water level of the Yangtze River after the underwater vertical excavation of a section of embankment slope of the Yangtze River in Nanjing. The research shows that under the bottom of the dip tube about one-third,the horizontal displacement of the soil is not affected by water level changing,over one-third at the bottom of the dip tube,the horizontal displacement of soil negatively related by water level change.