疏桩—筏板复合基础数值模拟与现场实测比较

Math simulation and on-spot watching comparison of sparse pile-raft board compound base

对实体模型按照施工过程分层加载进行了有限元模拟,得到随着楼层的施工进展和上部结构刚度逐步形成的情况下,桩—土荷载的分担比的变化、承台底土的应力分布、承台中不同位置桩顶荷载变化规律,并将结果与现场实测值进行了对比分析,为徐州地区同类工程的设计提供了实践经验。

It makes limited unit simulation on actual model according to constructing process layer-division and add-loading, brings forward the pile-soil burden sharing changes, supporting bottom soil stress distribution and different positions for top load changing law under conditions of layers constructing period and top structure rigidity, and analyzes and compares the result with on-spot actual watching result, offers precious experience for designing familiar project in Xuzhou area.