Bearing capacity and deformation behaviour of pile groups in soft soil and design of composite foundation with settlement-reducing piles;

Analysis for deformation of single tension pile and pile groups using modified variational approach;

Analytic method of pile groups considering slipping between piles and soil and dynamic adjustment of integral stiffness;

Studying of calculating method of lateral loaded pile groups;

Lateral vibration of pile groups in layered soil;

Approximate hybrid method for computing the settlement of pile groups;

Dynamic impedance of group piles in two-phase fluid-saturated soils;

DCM-based on ground loss for response of group piles induced by tunneling

Combined with the construction practice,the paper introduced the construction methods and the quality guarantee measures of tension weight churning in the construction of deep-hole group piles.

This paper introduces developments at home and abroad in the study of single and group pile impedance and discusses in detail the advantages and disadvantages of the various approaches, including Novak thin layer approach, lump mass method, superposition method,numerical solutions, etc.

In this paper, the three dimensional elasto plastic analysis of a group pile soil interaction system is made by using the finite prism element method.

The programming and validating FEM code of Biot consolidation theory are used for analysis of the consolidation of composite ground with piles,and the consolidation behavior of the single pile composite ground and natural ground is compared.

The FEM is used to simulate the piles and near field soil mass and the IEM is adopted to simulate the piles and distant field soil.

551, Jiangning Road, Shanghai, the FEM is used to analyse ground heaves of pile groups, lateral displacements of soil around piles, stress of pushing against soil and the influences on the ambient piles are studied in detail.