| 高填方长期工后沉降研究的综述 |
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| 引用本文： | 徐明,宋二祥.高填方长期工后沉降研究的综述[J].清华大学学报(自然科学版),2009(6). |
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| 作者姓名： | 徐明 宋二祥 |
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| 作者单位： | 清华大学土木工程系结构工程与振动教育部重点实验室; |
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| 基金项目： | 国家“八六三”高技术项目(2007AA11Z113);;教育部博士点基金新教师项目(200800031061) |
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| 摘 要： | 随着中国西部山区基础设施建设的迅猛发展,高填方地基日益增多,其长期工后沉降直接关系到上面机场、高速公路和铁路等设施的正常使用,成为困扰工程界的难题。该文分析了各国高填方长期现场监测数据。结果表明:蠕变沉降会在完工后相当长时间内会持续不断的发生,并和工后时间的对数大致成线形关系;而高填方遇水则有可能产生较大的湿陷沉降。室内试验是研究长期工后沉降的有效手段,而工后沉降的机理则和粗粒土的微观力学特性密切相关。因此,有必要对中国高填方工程开展长期监测及微观机理研究。
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| 关 键 词： | 高填方 长期工后沉降 蠕变 湿陷沉降 |
Review of long-term settling of high fills |
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| XU Ming,SONG Erxiang.Review of long-term settling of high fills[J].Journal of Tsinghua University(Science and Technology),2009(6). |
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| Authors: | XU Ming SONG Erxiang |
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| Institution: | Key Laboratory of Structural Engineering and Vibration of Ministry of Education;Department of Civil Engineering;Tsinghua University;Beijing 100084;China |
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| Abstract: | The booming infrastructure development in western China is leading to more and more high filled construction.The long-term settling of these high fills will influence the highways,railways,and airports built on top fills,but this settling is difficult to predict.This paper investigated a wide range of long-term field monitoring of high fills.The results show that creep settling,which will continue over a long period,is linearly related to the logarithm of the elapsed time.Large collapse settling can occur d... |
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| Keywords: | high fills long-term settlement creep wet collapse compression |
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