{"title":"Pullout capacity at the bamboo reinforcement-compacted earth interface","authors":"Y. Luo, C. Ye, H. Zhong, P. Ni, W. Li, Z. Zeng","doi":"10.1680/jgein.24.00016","DOIUrl":null,"url":null,"abstract":"Compacted earth materials are still popularly used to construct wall structures in rural areas. To address the drawbacks of poor ductility and low shear resistance in compacted earth walls, bamboo, with excellent tensile properties, is introduced as a reinforcement material. Pullout tests on bamboo-reinforced compacted earth were conducted in this study, in which the effects of four parameters of normal stress, bamboo reinforcement form (without node, with node, and with curved anchor head), bamboo reinforcement width, and embedment length were investigated. Results demonstrated that the presence of chemical bonding force, frictional resistance, and end resistance at the interface between bamboo reinforcement and compacted earth could contribute to the mobilized pullout capacity. The parameter impact on pullout resistance can be ranked as follows: embedment length > bamboo reinforcement width > normal stress > bamboo reinforcement structure. Based on the Mohr strength theory, a model for estimating the ultimate tensile capacity of bamboo-reinforced compacted earth was derived. The pullout capacities obtained from theoretical calculations and experimental measurements differed from 0.73% to 14.60%, mostly failing below 10%. The proposed calculation model enabled the estimation of load-bearing capacity at the bamboo reinforcement-compacted earth interface, providing valuable guidance for wall design.","PeriodicalId":12616,"journal":{"name":"Geosynthetics International","volume":null,"pages":null},"PeriodicalIF":2.8000,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geosynthetics International","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1680/jgein.24.00016","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, GEOLOGICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Compacted earth materials are still popularly used to construct wall structures in rural areas. To address the drawbacks of poor ductility and low shear resistance in compacted earth walls, bamboo, with excellent tensile properties, is introduced as a reinforcement material. Pullout tests on bamboo-reinforced compacted earth were conducted in this study, in which the effects of four parameters of normal stress, bamboo reinforcement form (without node, with node, and with curved anchor head), bamboo reinforcement width, and embedment length were investigated. Results demonstrated that the presence of chemical bonding force, frictional resistance, and end resistance at the interface between bamboo reinforcement and compacted earth could contribute to the mobilized pullout capacity. The parameter impact on pullout resistance can be ranked as follows: embedment length > bamboo reinforcement width > normal stress > bamboo reinforcement structure. Based on the Mohr strength theory, a model for estimating the ultimate tensile capacity of bamboo-reinforced compacted earth was derived. The pullout capacities obtained from theoretical calculations and experimental measurements differed from 0.73% to 14.60%, mostly failing below 10%. The proposed calculation model enabled the estimation of load-bearing capacity at the bamboo reinforcement-compacted earth interface, providing valuable guidance for wall design.
期刊介绍:
An online only, rapid publication journal, Geosynthetics International – an official journal of the International Geosynthetics Society (IGS) – publishes the best information on current geosynthetics technology in research, design innovation, new materials and construction practice.
Topics covered
The whole of geosynthetic materials (including natural fibre products) such as research, behaviour, performance analysis, testing, design, construction methods, case histories and field experience. Geosynthetics International is received by all members of the IGS as part of their membership, and is published in e-only format six times a year.