深圳大学学报（理工版）2024，Vol.41Issue(4)：499-508,10.DOI:10.3724/SP.J.1249.2024.04499
基于拉拔试验的加筋土界面摩擦特性
Frictional characteristics of reinforced soil interfaces based on pullout tests
摘要
Abstract
Reinforced soil is widely used in the reinforcement of roadbeds,slope retaining walls,and other areas due to its excellent engineering performance.The interfacial friction strength between reinforcement and soil has a significant impact on the overall integrity and stability of the retaining structures.To investigate the interface friction characteristics of different reinforced soils,pull-out tests are conducted using a self-made pull-out apparatus on four types of reinforced soils:clay-geogrid,clay-carbon fiber cloth,clay-geocell,and gravel soil-geocell.Among the tested reinforced soils,the interface friction between geocell and gravel soil demonstrates the highest strength,indicating superior resistance to deformation.Conversely,clay reinforced by carbon fiber fabric exhibits the lowest interface friction strength,however,it displays a faster interaction with the soil with allowable minimal deformations.There is a significant difference in allowable deformations of different types of reinforced soils,which should be fully considered in practical engineering applications.A theoretical model for calculating interfacial friction resistance between non-cohesive soil and geocell reinforcement zone is proposed.The research findings can provide reference for the selection of reinforcement materials in reinforced soil engineering.关键词
岩土工程/加筋土/拉拔试验/碎石土/界面摩擦强度/峰值位移/土工格室Key words
geotechnical engineering/reinforced soil/pull-off test/gravel soil/interfacial friction strength/peak displacement/geocell分类
建筑与水利引用本文复制引用
屈畅姿,曹峥,刘泽,周详详,李梦竹..基于拉拔试验的加筋土界面摩擦特性[J].深圳大学学报（理工版）,2024,41(4):499-508,10.基金项目
Outstanding Youth Project of Hunan Education Department(22B0146) 湖南省教育厅优秀青年科学研究资助项目(22B0146) （22B0146）
