粗粒土路基工程性状试验研究  

Experimental Study on Engineering Properties of Coarse Grained Soil Subgrade

作　　者：吕成[1] 

机构地区：[1]徐州工程学院土木工程学院,江苏徐州221008

出　　处：《施工技术》2012年第12期69-70,78,共3页Construction Technology

基　　金：江苏省高校自然科学基金面上项目(09KJD560004)

摘　　要：粗粒土在路基工程应用中优点众多,而目前对其工程性状的研究并不深入,无法有效指导工程施工。通过设计和开展室内试验,研究了粗粒土的击实曲线特征,以及不同粗粒含量情况下粗粒土最大干密度的变化规律,并深入分析了其根本机理,在此基础上,提出了相关的结论。同时,还提出了施工建议。Coarse grained soil has many advantages when applied in roadbed construction, but the research on its engineering properties is not sufficient to guide the actual construction application. By designing and conducting indoor experiments, this paper studies the characteristics of grained soil compaction curve, the law governing the change of grained soil maximum dry density with different coarse grain proportion. In addition, in-depth analysis was also performed to find out the fundamental mechanism. Conclusions are summarized and construction suggestions proposed based on the analysis.

关 键 词：公路工程 路基工程 粗粒土 工程性状 试验 

分 类 号：TU411[建筑科学—岩土工程] U416.1[建筑科学—土工工程]