水泥土挤密桩复合地基静载荷试验的数值模拟分析

Numerical Simulation Analysis of Static Load Test of Cementsoil Compaction Piles for Composite Foundation

水泥土挤密桩在客运专线的地基处理中得到了广泛应用,但其设计施工多以经验为主,许多问题还有待于深入的研究。水泥土挤密桩单桩复合地基静载荷试验复杂,耗资大,而郑西客运专线利用有限元数值模拟的方法对其进行较深入的分析,得出了一些与现场试验相符的结论,说明利用数值模拟的方法能够很好地模拟水泥土挤密桩单桩复合地基静载荷试验。

The cement-soil compacted pile in ground treatment has been widely used at the railway line for passenger traffic, but the design and construction mainly depend on experience, many issues need to be studied in depth. Because the single pile static load test of cement-soil compacted pile is so complex and expensive, the method of finite element numerical simulation is used to analyze the Zhenzhou-Xi＇an railway line for passenger traffic in depth. The results consist with field tests which indicate that the numerical simulation method can simulate the single pile static load test of cement-soil compacted piles for composite foundation perfectly.