| 基于地下水变位的路基顶面当量回弹模量预估 |
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| 引用本文： | 凌建明,谢经保,郑悦锋,杨戈.基于地下水变位的路基顶面当量回弹模量预估[J].同济大学学报(自然科学版),2005,33(2):162-165. |
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| 作者姓名： | 凌建明 谢经保 郑悦锋 杨戈 |
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| 作者单位： | 1. 同济大学,道路与交通工程教育部重点实验室,上海,200092
2. 同济大学,道路与交通工程教育部重点实验室,上海,200092;上海机场(集团)有限公司,上海,201206 |
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| 基金项目： | 上海市重点学科、国家重点学科、交通部西部交通建设科技项目联合资助项目(200131800029) |
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| 摘 要： | 在分析总结国内外关于非饱和土土壤水分特征曲线相关研究资料的基础上，结合所提出的3种土的回弹模量预估方程，探讨建立基于地下水位变化的路基顶面当量回弹模量预估模型，并根据上海市罗山路实测数据对其进行验证分析．分析表明，该模型可以较为准确地预估路基顶面当量回弹模量．
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| 关 键 词： | 路基 地下水位 回弹模量 土壤水分特征曲线 基质吸力 含水量 |
| 文章编号： | 0253-374X(2005)02-0162-04 |
Prediction Method of Equivalent Resilient Modulus on Top of Pavement Subgrade with Underground Water Table |
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| LING Jian-ming,XIE Jing-bao,ZHENG Yue-feng,YANG Ge.Prediction Method of Equivalent Resilient Modulus on Top of Pavement Subgrade with Underground Water Table[J].Journal of Tongji University(Natural Science),2005,33(2):162-165. |
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| Authors: | LING Jian-ming XIE Jing-bao ZHENG Yue-feng YANG Ge |
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| Institution: | LING Jian-ming 1,XIE Jing-bao 1,ZHENG Yue-feng 1,2,YANG Ge 1 |
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| Abstract: | Based on a series of laboratory tests and experiment results of some researchers,the estimation equations of resilient modulus are established for silt gravel,clay and sand.Furthermore,a method to predict the equivalent resilient modulus on the top of pavement subgrade with underground water table is proposed on the basis of the study of matric suction and soil-water charcteristics curve in this paper.The prediction method has successfully been applied to predict the equivalent resilient modulus on the top of clay subgrade at Shanghai's Luoshan Road. |
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| Keywords: | subgrade underground water table resilient modulus soil-water characteristics curve matric suction water content |
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