同济大学学报（自然科学版）2025，Vol.53Issue(4)：539-547,556,10.DOI:10.11908/j.issn.0253-374x.23282
加筋土桥台承载性能及影响因素的模型试验研究
Model Experimental Study on Load-bearing Performance and Influencing Factors of Reinforced Soil Abutment
摘要
Abstract
As the substructure of load-bearing bridge,the load-bearing performance of reinforced soil flexible abutment and its influencing factors have always been concerned.In this paper,a reinforced soil abutment on Tongyue Expressway is taken as a prototype,and four large scale model tests of reinforced soil abutment are completed.The effects of reinforcement spacing,the connection form between reinforcement and block panel,and the backfill gradation on the loading-bearing performance and deformation characteristics of the abutment are studied.The test results show that the reinforcement spacing and backfill gradation(including the maximum particle size)are important factors affecting the load-bearing capacity of reinforced soil abutment,and the connection form(strength)between reinforcement and block panel has an important effect on the deformation control of reinforced soil abutment.Reducing the reinforcement spacing and improving the backfill gradation can increase the overall stiffness of the reinforced soil composite,reduce the deformation of the abutment,and enhance the load-bearing capacity of the abutment.Compared with the friction connection between reinforcement and block panel,the mechanical connection limits the relative displacement of the reinforcement from block panel,and enhances the lateral constraint of the reinforced soil composite,reducing the deformation of the abutment.关键词
加筋土桥台/承载性能/加筋间距/筋材与砌块面板连接形式/填料级配Key words
reinforced soil abutment/load-bearing performance/reinforcement spacing/reinforcement and block panel connection form/backfill gradation分类
土木建筑引用本文复制引用
徐超,余晓晓,杨阳,左彬澧,韦小当,崔纪泽..加筋土桥台承载性能及影响因素的模型试验研究[J].同济大学学报（自然科学版）,2025,53(4):539-547,556,10.基金项目
安徽省交通控股集团科技项目(JKKJ-2020-08) （JKKJ-2020-08）
