The Study And Effectiveness Analysis Of The CFG Piles Treating The Soft Foundation Test Of The Highway

With the rapid development of economic construction in Western China inrecent years, rapid advances in construction of Expressway in mountain area ofSouthwest. Characteristics of soft soil Foundation with coastal and inland plainregions are different, has its own characteristics of soft soil Foundation in Guizhou mountainous areas, has a complex range of failure mode and deformation characteristics, during construction of the complex climate, hydrology, geology, anew problem is becoming increasingly acute, leads to a study on treatment of soft soil Foundation of Expressway construction in mountainous areas are representative of the technical problems.This on Guizhou province mountain highway along soft soil Foundation processing method for has widely of investigation and the information collection, analysis out mountain unique of soft soil Foundation damage forms, in on Guizhou province mountain soft soil foundation engineering characteristics investigation of based Shang, summary out mountain soft soil of environment, and layer acting, and season and physical mechanical characteristics, antibody out soft soildeformation of features, according to deformation features made in specific sections using CFG pile composite Foundation processing soft soil subgrade of programme. Described composition and working mechanism of composite Foundationof CFG pile and pile body for its unique characteristics, specific characteristicsof bearing capacity of composite Foundation and calculation, calculation of subsidence deformation theory and compression methods. Second, according to principles of geotechnical centrifuge model test of building similar models to simulate the settlement of CFG pile composite Foundation treatment, for summary andanalysis of sedimentation, deformation. Finally, under the process of CFG pilecomposite Foundation combined with highway design idea to design for settlement control of CFG pile, finally relying on Highway18th contract compliance section of the actual construction of CFG pile composite Foundation design and finite element analysis of the PLAXIS.Thesis final findings for CFG pile composite Foundation to provide a theoretical basis for practical engineering applications. Currently, CFG pile composite Foundation of theoretical research are lagging far behind the actual use shouldbe further strengthened in the future work on CFG pile composite Foundationbearing capacity of design, construction, testing and monitoring of research.