复合地基桩土应力比因素的分析

It is very important to determine the bearing capacity of foundation, which is a key point for designing composite foundation. The stress ratio of pile-soil is an important parameter that reflects the work condition of composite foundatio and may be influenced by many factors. Many important relevant factors are studied with finite element method in the paper.The results show that the value of pile-soil stress ratio increases with the increasing of pile length, Pile spacing, Soft soil thickness and elastic modulus of soil under pile bottom. This research not only helps to understand the property of bearing capacity transferability but also guides the construction of composite ground， giving reference to designing TDR composite foundation.