| 高速公路膨胀土路基改良的试验和分析 |
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| 引用本文： | 宿文姬,王玉玲.高速公路膨胀土路基改良的试验和分析[J].岩矿测试,2006,25(3):294-296. |
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| 作者姓名： | 宿文姬 王玉玲 |
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| 作者单位： | 1. 北京科技大学土木与环境学院,北京,100083;华南理工大学建筑学院土木工程系,广东,广州,510640
2. 广东省物料检测中心,广东,广州,510010 |
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| 摘 要： | 对膨胀土路基填料存在问题进行探讨分析。以广东某高速公路为例，对比了膨胀土路基填料改良的试验方法及其效果，提出了掺石灰和粉煤灰等方案的最佳选用建议。试验分析表明，对膨胀土改良的测试和评价不宜采用单一方法，应根据膨胀土的胀缩等级、地方材料及施工工艺等进行综合技术与经济比较，选定最优方案。
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| 关 键 词： | 膨胀土 路基 改良 |
| 文章编号： | 0254-5357（2006）03-0294-03 |
| 收稿时间： | 2006-04-27 |
| 修稿时间： | 2006-04-272006-06-06 |
Experiments on Improving Expansive Soil Roadbed of Highway |
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| SU Wen-ji,WANG Yu-ling.Experiments on Improving Expansive Soil Roadbed of Highway[J].Rock and Mineral Analysis,2006,25(3):294-296. |
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| Authors: | SU Wen-ji WANG Yu-ling |
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| Institution: | 1. Civil and Environment Engineering School, University of Science and Technology Beijing, Beijing 100083, China; 2. College of Architecture and Construction, South China University of Technology, Guangzhou 510640, China; 3.The Material Testing Center of Guangdong Province, Guangzhou 510010, China |
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| Abstract: | In this paper, the problems from using expansive soils as filling material in highway roadbed construction were discussed. Based on the investigations on chemical, physical and mineral features of expansive soils, the best scheme of mixing lime or powdered coal ash with expansive soils to improve the performance of the filling materials was put forward. The scheme has been applied to the improving expansive soil roadbed of a highway in Guangdong province. The selection principles of the scheme for improving the performance of the filling materials and the evaluation methods for the improvement effectiveness were also discussed. |
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| Keywords: | expansive soil roadbed improvement |
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