SUN Lin-na, GONG Xiao-nan, QI Jing-jing. Research on subsidiary stress of the rigid pile composite foundation under rigid cushion cup[J]. 2006, 27(S2).
SUN Lin-na, GONG Xiao-nan, QI Jing-jing. Research on subsidiary stress of the rigid pile composite foundation under rigid cushion cup[J]. 2006, 27(S2).DOI:
The subsidiary stress of any point in composite foundation is superimposed by the upper China loading and those stresses caused by both soil and piles which include side friction resistance and end resistance. With assuming the semi-trapezoidal distribution of friction resistance according to load transfer and field test
and considering the size effect of pile
the subsidiary stress caused by side friction resistance and end resistance can be obtained by quadratic integral computation with Mindlin solution. The subsidiary stress caused by the upper loading can be obtained from Boussinesq solution. The total subsidiary stress is the sum of two parts of above. An engineering case study is also presented in this paper .