水平荷载下单片地下连续墙基础的应变楔模型分析法

Method of the Strain Wedge Model Analysis of the Single Laterally Loaded Diaphragm Wall Foundation

近年来单片地下连续墙被广泛运用于桥梁工程和高层建筑中,但其大部分研究均集中于单片地下连续墙的竖向承载性能试验研究和理论分析,只进行了少量单片墙的水平承载性能试验研究。通过应变楔模型把墙与土之间复杂的三维接触特性简化为一维的弹性地基梁中所需土体的参数,然后按照弹性地基梁的理论计算墙的内力和变形,利用室内模型试验实测数据验证了该算法的合理性。可为类似工程提供依据。

The single diaphragm wall is widely used in high rise buildings and bridge projects recently.But most of the studies have focused on experimental and theoretical study of vertical bearing properties and only a little of experimental study on lateral bearing properties is conducted.In this paper,the complex three-dimensional characteristics of the contact between the wall and the soil can be transformed into the parameters required one-dimensional elastic beam,and the internal forces and de formation of the wall can be calculated through the elastic beam.At last,the reasonableness of the algorithm can be verfied through the indoor model test data.It can be provided for similar projects.