Finite Difference Numerical Simulation of a Foundation Pit Supported by Double-Row Piles

详细信息   

• 责任者：Liu Richeng (Department of Underground Space ; School of Civil and Hydraulic Engineering ; Shandong University ; Jinan 250061 ; China) ; Xu Bangshu
• 刊名：Geology and Prospecting
• 出版年：2012
• 卷期：48(2)
• 关键词：基坑 ; foundation pits ; 支护 ; tunnel support
• 页码：p.366-373
• 图表：3 illus., 8 tables, 2 refs.
• 分类号：1702
• issnNo：ISSN0495-5331
• isbnNo：CN11-2043/P

摘要

The supporting structure with double-row piles and top beams can control deformation of foundation pits in constructions efficiently. Therefore, this technique is wide｜y used in the supporting design of foundation pits. This work was based on the ground theatre project of Cultural Center in the west district of Jinan City and used finite difference simulation to analyze some features of the foundation pit supported by the technique aforementioned. The calculation results were compared between the two types of piles, i.e. “entity unit pile” and “structural unit pile”. The result shows that the model considering interaction between soil and pile can simulate the whole process of double-row supporting piles very well, and can get a very high computational accuracy. The maximum horizontal displacement occurs on the top of the pile, while the maximum bending moment and shear stress appear in the bottom of excavation part. The result can provide reference to the research of the mechanism of double-row supporting piles.