Research On The Deformation Characteristics Of High Fill Foundation Of Kunming New Airport West Runway

The main features of the South West airport are: high embankment,complicated geological conditions,soft soil distribution and the short construction period.The crucial and also the chief challenge of the airport construction in this region is how to maintain the stability of the embankment.The new kunming airport runway to dial2000 m on average west left,the biggest fill highly nearly 40 m,The bottom local area soft soil layer thickness of more than 10 m on average.The original foundation settlement,filling body compaction degree,is the effect of rainfall infiltration high fill the foundation stability is the main factor,In-depth study natural conditions and rainfall in the cases of high fill foundation deformation characteristics and laws,and establish the quantitative analysis model to guide the construction work of high fill foundation has the very vital significance.In this paper the kunming new airport runway to west high fill foundation,the use of centrifugal model test physical simulation,based on similarity theory basic principle,establish four centrifugal simulation model,high fill foundation in natural conditions and rainfall condition,the settlement of process,high fill foundation that the deformation characteristics and laws.In this paper using FLAC-3 D numerical simulation,based on fast 3D Lagrange algorithm,build three numerical simulation model,and the research on natural high fill foundation under the condition of the deformation characteristics and laws,and for centrifugal model test physical simulation results and numerical simulation value comparison analysis,based on these work high fill foundation for design and construction of the optimization to provide the theory basis and guidance.