Research on key technologies for deformation control of deep soft soil layer excavation in marine environment
This paper takes the foundation pit engineering in coastal cities as an example to analyze the main construction risks that exist during the entire construction process of foundation pits in marine soft soil layers,and studies the design scheme and construction technology points of foundation pits.The monitoring results show that reinforcement outside the retaining pile can effectively control soil deformation.Compared with the unreinforced area,it can reduce soil deformation by at least 60%.The dismantling of reinforced concrete supports can be carried out in a sequence of first enclosing purlins and then the supporting,with block construction to reduce the deformation impact.This project provides certain technical references for engineering construction under similar geological conditions.
marine soft soilirregular foundation pitdeformation control