竖向荷载作用下桩-土相互作用时土体对空心桩受力性能分析

Analysis on Loading Capacity of Hollow Pile under Vertical Loading Condition by Consideration of Pile-soil Coupling Effect

摘要:

采用有限单元法，用Ansys进行模拟仿真分析计算，考虑桩-土相互作用，在竖向荷载作用下对空心桩受力性能进行了分析，提出了在裂缝易产生处增设土工复合材料、增加土体弹性模量、粘聚力、桩侧灌浆等改善土性的措施，旨在给工程界提供理论参考。

Abstract:

A finite element analysis is performed for a hollow pile by considering the interaction between the soil and the pile. The vertical ultimate loading capacity is calculated. Some measures such as laying geo-technical composite materials in cracks; increasing soil elastic modulus and cohesion; and filling the side of pile with gravel concrete and so on are proposed. The influences on the loading capacity are discussed in detail. The theoretical analysis can be taken as a reference to the engineering application of hollow piles.