Control on the Construction of CM 3D High-Strength Composite Foundation

Taking project of a large-scaled residential quarter as an example,this paper introduces CM high-strength composite as action mechanism of program primarily promoted by Construction Ministry as well as technical attribute and superiority of the program.This paper elaborates rigid pile(Pile C) of plain concrete inside CM high-strength composite foundation,including control over key point and approach related to pore-creating of deep mixed pile(Pile M) of cement soil and grouting construction.In addition,this paper also illustrates key control point and approach of earthwork excavation in close relation to pile body quality.At the same time,this paper explains key construction control point and approach of cushion layer which works together with pile body.Besides,technical and economic contrast and comparison has been made between such an approach and cast-in-place pile originally designed to demonstrate that adoption of 3D high-strength composite foundation technology could significantly save material,energy,and construction period and the technology is provided with remarkable social and economic benefit.