Cement Soil Laboratory Test And Soil Cement Mixing Pile Composite Foundation Settlement Study

In recent years,with the development of economy, the scale of construction of infrastructural facilities is getting larger and larger in our country.Soft ground often appears in the construction of transportation, water conservancy projects and so on,more and more methods for managing soft ground are emerging in an endless stream, many economic ,fast,effective and practical methods have got an extensive application in the projects, pile composite foundation is one typical way in these methods.However, the corresponding theoretic research work has been lagged behind ,which seriously restricted the development and perfection of these methods. So the theory of pile composite foundation is far behind practice as a result.Therefore, taking a thorough and broad theoretical study on such as pile composite foundation is one of the topics which have been paid more and more attention in the geotechnical engineering.This paper explores the mechanism of cemented soil through the test in laboratory explores,hencethe relationship between cement admixture and compression strength and the stress-strain relationship curve of different admixture and cement soil in pressure are established. A series of rheology of soil's relationship curves are achieved by rheological test.Model parameters are determined through five elements of soil Kelvin visco-elasticity rheological model and small program of Gauss Newton Method. Finally,by the means of combining the ANSYS software and the specific case,pile composite foundation soil which are considered with the rheological property of soil and one not considered have been numerically studied respectively. Comparing and analysing the obtained results and supplying the reference for project practice.