动力锥贯入仪DCP在砂类土路基检测中的应用研究  

Study on the application of dynamic cone penetrator( DCP) in the sandy soil subgrade test

作　　者：占样烈 赵翀[2] Zhan Yanglie;Zhao Chong(China Railway Liuyuan Group Co.,Ltd.,Tianjin 300308,China;Tianjin Municipal Engineering Design&Research Institute,Tianjin 300051,China)

机构地区：[1]中铁第六勘察设计院集团有限公司,天津300308 [2]天津市市政工程设计研究院,天津300051

出　　处：《工程勘察》2021年第6期34-37,共4页Geotechnical Investigation & Surveying

摘　　要：为了研究动力锥贯入仪(dynamic cone penetrator,简称DCP)快速检测砂类土路基压实性能的合理性,本文以某海岛公路项目为依托,通过在砂类土路基地段进行DCP、现场CBR测试、压实度三项平行对比试验,对试验测试结果进行回归分析,得出三者之间的相关关系,分析结果表明:三项测试结果之间具有良好的相关性,DCP可以作为一种快速检测评价砂类土路基压实质量和承载能力的方法,并可在类似工程中推广使用。In order to study the rationality of the dynamic cone penetrator( DCP) to quickly test the compaction performance of sandy soil,a case study of an island highway project was carried out. Through three parallel comparative tests of DCP,field CBR test and compactness in the sandy soil subgrade section,the regression analysis of the test results was carried out,and the correlation among those results was obtained. The analysis results show that there is a good correlation between these test results. DCP can be used as a method to quickly detect and evaluate the compaction quality and the bearing capacity of sandy soil subgrades,and can be promoted to apply in similar projects.

关 键 词：DCP 现场CBR 压实度 砂类土路基 压实质量 

分 类 号：TU413[建筑科学—岩土工程]