A Three-Section-Settlement Calculation Method for Composite Foundation Reinforced by Geogrid-Encased Stone Columns | Zendy

Binhui Ma | Zendy; Zhiyong Hu | Zendy; Zhuo Li | Zendy; Kai Cai | Zendy; Minghua Zhao | Zendy; Chengbin He | Zendy; Qiunan Chen | Zendy; Bingchu Chen | Zendy; Xiaocheng Huang | Zendy

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A Three-Section-Settlement Calculation Method for Composite Foundation Reinforced by Geogrid-Encased Stone Columns

Author(s) -

Binhui Ma,

Zhiyong Hu,

Zhuo Li,

Kai Cai,

Minghua Zhao,

Chengbin He,

Qiunan Chen,

Bingchu Chen,

Xiaocheng Huang

Publication year - 2021

Publication title -

advances in civil engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.379

H-Index - 25

eISSN - 1687-8094

pISSN - 1687-8086

DOI - 10.1155/2021/5576713

Subject(s) - geogrid , pile , geotechnical engineering , settlement (finance) , stratum , composite number , structural engineering , foundation (evidence) , slip (aerodynamics) , section (typography) , bearing capacity , geology , finite element method , arch , engineering , materials science , computer science , composite material , law , reinforcement , aerospace engineering , world wide web , political science , payment , operating system

The analysis of the bearing characteristics and deformation mechanism of composite foundation reinforced with geogrid-encased stone columns is presented in order to obtain its settlement calculation method. The settlement of composite foundation is divided into three sections which are the reinforced section, unreinforced section, and underlying stratum. Based on Hooke’s law of space problem and the thoughts of the layer-wise summation method, the relative slip displacement between pile and soil of reinforced section without plastic zone is analyzed. The settlement of reinforced section is calculated by the layered iteration method based on the pile element model. The compatibility of vertical and radial deformations of unreinforced section is analyzed based on the pile-soil element model. The settlement of underlying stratum is still calculated by the layer-wise summation method. Finally, two engineering examples are analyzed and the results show that the settlement calculated by the presented method is close to the measured one. The method overcomes the defect that the calculated results by the other existing methods are more dangerous and it is more feasible and can be applied in engineering practice.

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