Evaluation And Analysis On Residual Collapsibility Of Lime Soil Compaction Pile Composite Foundation

Lime Soil compaction pile composite foundation is a simple, economical and effective method of soil treatment to collapsible loess foundation, it is have been used widely in the project. It often does not completely eliminate collapsible In the practical project.At present, the Lime Soil compaction pile composite foundation evaluation and analysis of collapsible is very rare. As the principle of Lime soil compaction pile composite foundation to eliminate collapsible is still at the exploratory stage, and the situation is more complicated, but it is very important in practice. Therefore, it is necessary to study this question.The first work is to study the pile-soil interaction of Lime soil compaction pile composite foundation in this article. From the foundation of the overall composite stress state of the starting, to analyze the collapsible of composite foundation. The focus work is to analyze residual collapsible of the soil compaction pile composite foundation. As it is more concerned about the bearing capacity of composite foundation in the practical project. Therefore, the remnants of composite foundation collapsible bearing capacity of composite foundation is also focused in this article.The evaluation of Lime soil compaction pile composite foundation includes not only the evaluation of collapsibility, sometimes it is more concerned about the bearing capacity of composite foundation. The collapsibility composite ground residual impact on the capacity has a relationship with the center distance. Through theoretical calculations and engineering examples it have verified that when the center distance of pile reaches a certain degree. The collapsibility often can not be completely eliminated Soil between piles, and with the further increase from pile center, Residual collapsibility will produce larger effects on bearing capacity of composite foundation. It can play a reference in the actual project.