土工合成材料在柔性路面路基加固中的应用  

Application of Geosynthetic Material in Flexible Pavement Subgrade Reinforcement

作　　者：刘炜峰 LIU Weifeng(China Railway 18th Bureau Group No.5 Engineering Co.,Ltd.,Tianjin 300450,China)

机构地区：[1]中铁十八局集团第五工程有限公司,天津300450

出　　处：《施工技术(中英文)》2025年第3期125-129,142,共6页Construction Technology

基　　金：中铁十八局集团有限公司科技创新项目。

摘　　要：为分析土工合成材料在柔性路面设计中用作路基加固材料的效能和成本效益,通过加州承载比试验研究土工格栅、土工织物和土工膜对路基承载力的影响,并对最佳铺设层数下的成本进行分析。研究结果表明,土工合成材料可明显提高土壤承载力,土工格栅加固效果最佳;随着土工合成材料铺设层数的增加,土壤承载力明显增大,3层土工格栅加固效果最佳;采用2层土工格栅进行路基加固可在保证路面性能的同时兼顾经济效益。To analyze the efficacy and cost⁃effectiveness of geosynthetic materials as reinforcement materials for subgrade in flexible pavement design,this paper studies the influence of geogrids,geotextiles and geomembranes on subgrade bearing capacity through California bearing ratio tests,and analyzes the cost under the optimal number of layers.The research results show that geosynthetic materials can significantly improve soil bearing capacity,among which geogrids have the best reinforcement effect.With the increase of the number of layers of geosynthetic materials,the soil bearing capacity increases significantly.Three layers of geogrids have the best reinforcement effect.Compared with un⁃reinforced soil,using two layers of geogrids for subgrade reinforcement can ensure pavement performance and take into account economic benefits.

关 键 词：道路工程 合成材料 加州承载比 成本 加固 

分 类 号：U41[交通运输工程—道路与铁道工程]