PRINCIPLE OF BEARING OF CEMENT-LOOSE COMPOSITE PILE AND ITS APPLICATION

A concept of cement loose composite pile is proposed in this paper, that is a pile consists of two parts, the upper is a cement pile and the lower is loose material pile, so that the defect caused by low bearing capacify of loose material pile can be removed by this method. The concept of bearing of cement loose composite pile is studied and a calculation method and a formula of the bearing capacity, settlement, and critical lengh of the pile are suggested. At last, the first engineering case is introduced.