| 云南蒙自红黏土的强度和压实特性研究 |
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| 引用本文： | 李向东,邓新安,尹利华.云南蒙自红黏土的强度和压实特性研究[J].路基工程,2016,0(2):41-44. |
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| 作者姓名： | 李向东 邓新安 尹利华 |
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| 作者单位： | 1.长安大学公路学院, 西安 710064 |
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| 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。
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| 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 |
| 收稿时间： | 2019-11-10 |
Research on Strength and Compaction Performance of Red Clay in Mengzi,Yunnan Province |
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| Abstract: | 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% to 24.5%, it can meet minimum strength, compaction degree and water stability requirements of Code for Design of Highway Subgrades (JTGD30—2004). |
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