砂性土中桩端竖向受荷性状的模拟方法

A METHOD FOR SIMULATING THE END-BEARING BEHAVIOR OF AXIALLY LOADED PILES IN SANDY SOILS

提出了一个基于球形孔扩张理论的模型,用于模拟砂性土中长桩的桩端竖向受荷性状,该模型对Vesic的解答作了改进。通过数值方法将Yasufuku和Hyde的理论框架在计算中实现,并编制了一个只需少量已知参数的计算机应用程序,用于模拟计算。该程序对Yasufuku和Hyde报道的Aio sand进行了计算和分析。计算的桩端承载力与一些现场试验获得的桩端承载力测试成果进行了比较,一致性较好。

It is presented a model based on the cavity expansion method to simulate the end-bearing capacity of axially loaded long piles embedded in sandy soils.The model improved Vesic's cavity expansion solutions and included the theoretical procedure of Yasufuku & Hyde.A computer program requiring limited parameters was worked out for convenient simulation.The program was used to model the experimental results presented by Yasufuku & Hyde as well as a series of in-situ test results of end-bearing capacities.Fairly good agreement was achieved between the measured and predicted capacities.