现场CBR试验在土石混填路堤填筑中的应用研究  

Research on Application of Field CBR Test to Rock-Soil Filled Roadbed

作　　者：李仁民[1] 刘松玉[1] 杜建国[2] 朱德玉[2] 光同文[2] 

机构地区：[1]东南大学岩土工程研究所,南京市210096 [2]安徽滁宁高速公路开发有限公司,滁州市239000

出　　处：《公路》2007年第8期85-89,共5页Highway

摘　　要：介绍了现场CBR试验的基本原理和测试方法,应用现场CBR值评价高速公路土石混填路堤的压实效果,并与传统的干密度测试、沉降差测试和弯沉测试结果进行了对比分析。结果表明,土石混填路堤的现场CBR值与干密度测试、沉降差测试和弯沉测试成果相当吻合。根据试验结果,建立了CBR值和干密度之间的关系式,并在土石混填路堤填筑质量控制中得到应用,取得了较好的经济效益。The fundamental theory and test method of field CBR test are introduced. The compaction effect of rock-soil filled roadbed is evaluated by field CBR, and the results of field CBR test is compared with the results of traditional dry density, differential settlement and deflection tests. According to the tests, the relationship between the CBR and dry density is put forward, field CBR test is used to control compaction effect of rock-soil filled roadbed, and the good economic returns are yielded.

关 键 词：现场CBR试验 土石混填 高速公路 压实 

分 类 号：U416.12[交通运输工程—道路与铁道工程]