基于位移法的桩板结构理论分析方法研究

尽管我国在多条高速铁路线上采用了桩板结构，但目前还主要是采用经验设计和试验验证的方法。基于一定的假设条件下，在充分考虑桩土、板土相互作用的基础上，采用位移法推导了桩板结构的理论分析方法，并将推导的方法与有限元进行了对比分析。结果表明，推导的理论方法与有限元计算结果非常接近，能满足工程设计的需要。

Study on Theoretical Analysis Method for Pile-slab Structure Based on Displacement Method

Although pile-slab structure has been used for many high speed railways in China, it is still mainly designed by the empirical formula and experimental verification method. Based on certain assumptions and sufficient considerations on the soil-pile and soil-slab interactions, this paper used displacement method to deduct the theoretical analysis method for such structure, then compared it to finite element method (FEM). The results show that for the theoretical method，the calculating result is very close to the result from FEM, thus can meet the requirement of engineering design.