The result shows that 8-1 layer is best bearing layer, and the preferred index method is a simple, applicable and reliable method.

Detailed study was done in the determination of base bearing capacity, raft stake composite stress analysis, auger ground, bearing stratum stress stretching and pile foundation construction.

Pile foundation is widely used in construction in Shanghai region, but the site test data on bearing capacity of pre-cast concrete pile based on cohesive soil were lower than theoretical level.