竖向荷载下钻孔灌注桩单桩的数值模拟分析

Numerical simulation of vertical bearing for single borehole cast-in-place concrete pile

针对某工程实例,利用有限元分析软件建立了单桩桩-土体系有限元模型,分析了桩土模型的荷载-沉降曲线及桩侧与桩端阻力的传递规律。结果表明,模拟分析结果与桩基静载试验数据仍存在一定误差,并对误差产生原因进行了理论分析,分析结果对桩土模拟及单桩设计有一定参考价值,也为群桩基础分析奠定了基础。

Combined with a project example, a single pile-soil system finite element model is established through finite element numerical analysis software, and the load-settlement curve and pile side and pile end friction transfering law of pile and soil finite clement model are analyzed. By comparing with pile static pressure load test data, can draw the testing result is similar to the simulating result, but still, there are some errors, and in the light of the factors which caused errors make rational analysis. Meanwhile, the research result will be useful to pile and soil simulation and design, also useful for the analysis of aroun of nile fnund^tinn