ABSTRACT
The differences between pile composite foundation and pile foundation, mainly is the conditions modification of pile stress, and the foundation load will be assigned to the piles and soil through the cushion. Under the load, the pile body pricks to the cushion, and the cushion materials also constantly fill to the soil between piles, then the soil will undertake quite large part of the load all along, fully reflects the characteristic of composite foundation which the base and the reinforcement bodies work together[3].
