Study On Deformation Characteristics Of Two-layered Soil Foundation

Natural two—layered soil foundation is widely distributed in the southeast coast ofChina and the vast plain area, two—layered soil foundation can greatly improve thebearing capacity of soft soil foundation. However, the study of two—layered soilfoundation is not deep enough, some people use the traditional methods of embankmentdesign and foundation treatment, not only spend a lot of money, but also destroyed the cruststructure, makes the performance worse than before, carrying capacity is greatly reduced.So, research on the crust layer is particularly important.This paper summarizes monitoring data of a certain engineering, choose typicalsections to do quantitative analysis, summarized foundation transformation rules based onengineering, The high the fill is, the more the deformation is. The high the rate is, thefaster the deformation grow.Uses the finite element software to study the deformation rules of double—layerfoundation. By using PLAXIS software, simulate the construction process oftwo—layered soil foundation under different conditions. The rule of two—layered soilfoundation, and the influence of various factors on subgrade settlement.Finally use the reciprocal theorem to study the deformation characteristics of thetwo—layered soil foundation, the crust is simplified as a elastic foundation plate, comparethe computing results with monitoring results of actual project, Get a set of feasiblecalculation method.