| 提高路基填料CBR值的试验研究 |
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| 引用本文： | 庞巍,张晓民,吕鹏.提高路基填料CBR值的试验研究[J].国防交通工程与技术,2006,4(4):61-63. |
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| 作者姓名： | 庞巍 张晓民 吕鹏 |
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| 作者单位： | 1. 石家庄铁道学院土木分院,河北,石家庄,050043
2. 石家庄铁道学院基建处,河北,石家庄,050043 |
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| 摘 要： | 交通部现行的《公路路基设计规范》明确提出了路基不同部位填料的最小强度要求。针对施工中存在不符合规范要求的路基填料现状,为降低工程造价,从提高路基压实度和掺石灰处理两方面试验研究了提高土基承载比的有效途径。结果说明:掺灰可以有效提高承载比,并提出了合理的掺灰率。
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| 关 键 词： | 承载比 路基填料 压实度 石灰 |
| 文章编号： | 1672-3953（2006）04-0061-3 |
| 收稿时间： | 2006-07-17 |
| 修稿时间： | 2006年7月17日 |
A Test Study of Improving the CBR Value of Sub-grade Materials |
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| PANG Wei,ZHANG Xiao-min,LV Peng.A Test Study of Improving the CBR Value of Sub-grade Materials[J].Traffic Engineering and Technology for National Defence,2006,4(4):61-63. |
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| Authors: | PANG Wei ZHANG Xiao-min LV Peng |
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| Institution: | 1. School of Civil Engineering, Shiiiazhuang Railway Institute, Shiiiazhuang 050043, China ; 2. The Capital Construction Department,Shijiazhuang Railway Institute,Shijiazhuang 050043,China |
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| Abstract: | The requirements for minimum strength values of embankment materials in different sections are clearly prescribed in the Specifications for Design of Highway Subgrades(JTG D30-2004). Aiming to avoid the occurrence of violating the requirements of the Specifications in strength for sub-grade, and to lower the engineering cost, the effective ways to improve the CBR values are studied in the paper, by which the author means improving the compactness of the sub-grade and mixing lime into the sub-grade materials in order to improve the load-bearing capacity of the sub-grade. The result of the experiment shows that mixing lime into the sub-grade materials can effectively raise the CBR. The ideal lime-mixing ratio is also suggested in the paper. |
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| Keywords: | CBR sub-grade material compactness lime |
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