Evolution Law of Lateral Deformation of Retaining Structure and Earth Pressure on Soil Surface of Soft Soil Foundation Excavation Under Active Control
Based on finite analysis and in-situ tests,this paper analyzes the lateral deformation of retaining structure and earth pressure on soil surface of soft soil foundation excavation under active control with axial force servo system.The research results show that the change of earth pressure on soil surface of the foundation excavation under active control is related to the axial force of the steel support and the lateral deformation of retaining structure.Earth pressure on soil surface increases when the lateral deformation of retaining structure decreases under the active control,and earth pressure on soil surface decreases when the lateral deformation of retaining structure increases under the soil excavation condition.The axial force has the greatest influence on the lateral deformation of retaining structure at the steel support and the earth pressure on soil surface.The farther away from the steel support,the smaller the influence of the axial force on the two.The earth pressure on soil surface under active control is between the static earth pressure and the active earth pressure.Under the influence of soft soil rheology,the lateral deformation of retaining structure increases slowly,and the earth pressure on soil surface does not change significantly.
foundation excavationsoft soilservo systemaxial forceearth pressuredeformation
万方数据
维普
