| 粉质土的土质特性及处治方法 |
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| 引用本文： | 朱永,宗旭辉.粉质土的土质特性及处治方法[J].重庆交通大学学报(自然科学版),2013,32(2). |
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| 作者姓名： | 朱永 宗旭辉 |
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| 作者单位： | 江苏中设工程咨询集团有限公司,江苏无锡,214072 |
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| 基金项目： | 重庆市教育委员会资助项目，重庆交通大学(桥梁)结构工程重点实验室开放基金项目 |
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| 摘 要： | 依托临海高等级公路南通段的工程设计,对沿线的土样进行了物理状态测试、颗料分析、液塑限分析、击实特性试验、膨胀性分析,及承载比(CBR)等试验,确定了现场的土质为粉粒为主的级配不良土,不能直接作为路基填料使用。对比分析了作为路基填料的几种土质改良方案的承载比试验结果,及作为路面结构底基层材料的几种土质改良方案的无侧限抗压试验结果,提出了路基填料及路面结构底基层材料的推荐方案。
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| 关 键 词： | 公路 粉土 路基 底基层 |
Characteristics and Treatment Measures of Silt Soil |
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| Zhu Yong
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Zong Xuhui.Characteristics and Treatment Measures of Silt Soil[J].Journal of Chongqing Jiaotong University,2013,32(2). |
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| Authors: | Zhu Yong Zong Xuhui |
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| Abstract: | Based on the project design of Nantong section in Lin-Hai Highway,the physical state,grain composition,liquid-plastic limit,compaction characteristics and expandability of the soil samples along the way were analyzed,meanwhile,the California Bearing Ratio test(CBR) was carried out.The test results indicated that,the spot soil was poorly-graded silt soil,which can’t be directly used as roadbed and road subbase.Through the comparative analysis of CBR results of several improvement programs of soil as roadbed filler and the unconfined compression test results of different treatment methods to improve soil used as road subbase,a recommended proposal of roadbed filler and pavement structure subbase materials is put forward. |
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| Keywords: | highway silt roadbed subbase |
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