Summarizing the relation of the plank thickness and layer equation, combining the situ-measurement data, this article can offer reference for designers to determ.

Study on Behavior and Design Method of Pile-raft Foundation with Variable Rigidity;

The Load Sharing Function of the Raft in the Pile-raft Foundation and the Analysis on the Influencing Factors;

Experimental study to reduce differential settlements of raft of composite foundation with rigid piles;

Change characteristics of vertical displacement and its difference of raft in large pile-raft foundation;

Analysis and calculation of the joint action among raft plate, pile and foundation in one high-rise building;

Based on the analysis of the causes for thermal cracks produced in mass concrete,preventive measures were taken from aspects of raw & produced materials,admixtures and proper construction method,and the thermal cracks in foundation raft plates of high-rise building were controlled effectively.