RESEARCH ARTICLE
The Mechanical Property of Bidirectional Geogrid and its Application Research in Retaining Wall Design
Wang Qingbiao1, 2, 3, Zhang Cong2, Wang Tiantian1, Bai Yun1, LÜ Rongshan1, Xu Lei1, Zhang Junxian1, Hu Zhongjing1, Xie Fei1, Zheng Tao1, Chen Zhen1, Tang Lingyu, Wang Hui*, 1
Article Information
Identifiers and Pagination:
Year: 2015Volume: 9
First Page: 214
Last Page: 222
Publisher ID: TOBCTJ-9-214
DOI: 10.2174/1874836801509010214
Article History:
Received Date: 26/5/2015Revision Received Date: 14/7/2015
Acceptance Date: 10/8/2015
Electronic publication date: 10/9/2015
Collection year: 2015
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
The introduction and rise of new geotechnical composite material greatly promote the development of civil engineering construction. Studying the mechanical properties of bidirectional geogrid and determining the reinforced soil retaining wall design calculation based on the friction reinforcement theory provide theoretical basis and research foundation for its application in the practical engineering. The mechanical properties of bidirectional geogrid are analyzed in depth through theoretical analysis, experimental research and numerical simulation. The mechanical property tests in light of different affecting factors are studied and the application of geogrid material in the reinforced soil retaining wall is simulated, thus yielding the conclusions as follows: (1) Study the mechanical properties in different temperature, loading and packing with the help of indoor pullout test and analyze the main factors affecting the mechanical properties of the geogrids in theory. (2) Analyze the reinforced soil retaining wall with friction reinforcement principle. Determine the calculation method of soil pressure and reinforcement and the check formula of the overall stability of the whole wall design and calculate the geogrid reinforced soil retaining wall in theory. (3) Simulate the bidirectional geogrid reinforced soil retaining wall with FLAC3D and analyze the force of the retaining wall. Study the stress-strain curve according to the parameters of reinforced geogrid and retaining wall and analyze the overall force to guide the safety of the site construction. (4) Apply to the reinforced soil the retaining wall design. Thus the result is achieved that bidirectional geogrid is simple in construction, excellent in performance and economic in cost and has a good application prospect and social benefit.