路基工程Issue(2)：29-35,7.DOI:10.13379/j.issn.1003-8825.202501046
花岗岩风化高液限土公路路基压实质量控制
Quality Control of Compaction for Highway Subgrade with High Liquid Limit Soil Induced by Granite Weathering
摘要
Abstract
Through laboratory geotechnical tests and field compaction trials,this study investigated the engineering characteristics and influencing factors of high liquid limit soil in a certain region and analyzed the compaction quality and control measures for subgrade construction.The results show that,high liquid limit soil exhibits the following characteristics:high natural moisture content,high liquid limit and plastic limit,high plasticity index,relatively high strength(CBR≥3%),and a broad distribution of coarse particle content(5%-30%).The moisture content corresponding to maximum CBR is approximately 6%higher than the optimum moisture content.When directly used as embankment fill material,high liquid limit soil must simultaneously satisfy requirements for CBR,CBR swell,and workability.It is recommended to use a vibratory roller with a self-weight not exceeding 22 t for embankment compaction,with a compaction moisture content not exceeding 32%,a rolling pass count of 4 passes,and a compaction degree control standard no less than 88%.关键词
公路工程/路堤填料/高液限土/压实度/含水率/碾压遍数/施工工艺/质量控制Key words
highway engineering/embankment fill material/high liquid limit soil/degree of compaction/water content/number of rollers passes/construction technology/quality control分类
交通工程引用本文复制引用
冯宝库,宋常军..花岗岩风化高液限土公路路基压实质量控制[J].路基工程,2026,(2):29-35,7.基金项目
西部交通建设科技项目计划(2013318223240) （2013318223240）
湖南省交通科技项目(202214) （202214）
中国公路工程咨询集团有限公司科技研究开发计划课题(ZZJT-GLGS-JS-202102) （ZZJT-GLGS-JS-202102）
