An On-the-spot Experiment on the Raft and Sparse Pile Compound Foundation

The raft and sparse pile compound foundation is a new pile foundation. Introduction is made in this paper to its application in a residential block with expansions made on the designing of the testing model, and the loading and testing systems. Furthermore, onthespot experimenting data are collected and detailed analysis is made on the bearing capability, load settlement and load shares of the raft and pile, as well as on the displacement, stress and axis stress distribution of the raft. The collected data can serve as a reference for theoretical investigation and practical designing of sparse piles.