散体材料变截面桩复合地基极限承载力研究

A Study of the Bearing Capacity of Composite Foundation of Non-Uniform Pile with Bulk Material

以鼓胀破坏理论为基础,同时考虑桩土接触面上的摩擦,利用土压力理论,探讨了散体材料变截面桩及其复合地基极限承载力的计算方法。通过算例,讨论了桩型及桩土接触面上的摩擦角对散体材料桩及其复合地基极限承载力的影响。

The calculation method of the limit beating capacity of the non-uniform piles and the composite foundation is studied on the basis of the swelling failure theory, the earth pressure theory and the friction in the contact surface between pile and soil. The influence of the pile type and the friction angle of the contact surface on the limit bearing capacity of the piles and the composite foundation is discussed with an example.