摘要
云南省境内分布着大量的红黏土,这些具有特殊性质的高液限土,需进行试验研究,才能确定是否能用作高速公路工程的路基填料。通过现场取样的详细室内试验,对云南蒙自红黏土的含水率、压实度与CBR、密实度、膨胀量、回弹模量的关系进行分析。结果表明：云南蒙自红黏土在含水率22.5%~24.5%之间,能满足《公路路基设计规范》（JTGD30—2004）规定的最小强度、压实度和水稳性要求。
A large number of red clay is distributed in Yunnan Province. The experimental research shall be done for high liquid limit soil with special characteristics to confirm whether the subgrade filling can be used for the expressway engineering. By sampling at site for detailed laboratory test,the relationship among water content,compaction degree,CBR,density,expansion and rebound modulus of red clay was analyzed. The results showed that when the water content of red clay in Mengzi,Yunnan Province ranges from 22. 5% to24. 5%,it can meet minimum strength,compaction degree and water stability requirements of Code for Design of Highway Subgrades（ JTGD30—2004）.
出处
《路基工程》
2016年第2期41-44,共4页
Subgrade Engineering
关键词
高速公路
路基填料
蒙自红黏土
CBR
压实度
含水率
回弹模量
expressway
subgrade filling
Mengzi red clay
CBR
compaction degree
water content
rebound modulus
