ABSTRACT
Long plastic vertical drainage plate-short cement-soil mixing pile (D-M method for short) is a new type of composite foundation treatment method, which has no precedent in airport foundation treatment engineering. To solve the problem of settlement and deformation of alluvial lacustrine soft soil foundation in the mountains of Plateau Airport, this paper selects typical filling sections for settlement and deformation analysis, numerically simulates four working conditions: untreated method, plastic vertical drainage plate (PVD method) treatment, cement-soil mixing pile (CMP method) treatment, and D-M method treatment, analyzes the action mechanism and deformation law, defines the reasonable treatment scheme, and explores the best design index.
