| 塑料排水板处理软土路基的载荷蠕变试验与工程应用 |
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| 引用本文： | 刘观仕,孟庆山,雷美清,郭爱国,胡明鉴.塑料排水板处理软土路基的载荷蠕变试验与工程应用[J].交通科技,2008(6). |
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| 作者姓名： | 刘观仕 孟庆山 雷美清 郭爱国 胡明鉴 |
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| 作者单位： | 1. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,武汉,430071
2. 中国科学院武汉岩土力学研究所岩土工程检测中心,武汉,430071 |
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| 基金项目： | 岩土力学与工程国家重点实验室开放课题
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| 摘 要： | 通过现场载荷试验、数值模拟与监测等手段,综合研究了塑料排水板处理软土路基的蠕变特性.两级荷载下的蠕变沉降曲线具有很高的相似性,而侧向蠕变速率则接近于零;然后,采用室内试验得出的土体参数对上述试验过程进行了三维数值模拟,证明考虑蠕变时的沉降计算结果比不考虑蠕变时更接近实测值;最后,将验证后的计算方法与参数应用于某高速公路路堤施工期沉降计算,并与实测结果进行了对比分析.
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| 关 键 词： | 高速公路 蠕变 软土路基 载荷试验 数值模拟 |
Load Creep Test on Soft Ground Treated With Plastic Drainage Belt and Its Application |
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| Liu Guanshi,Meng Qingshan,Lei Meiqing,Guo Aiguo,Hu Mingjian.Load Creep Test on Soft Ground Treated With Plastic Drainage Belt and Its Application[J].Transportation Science & Technology,2008(6). |
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| Authors: | Liu Guanshi Meng Qingshan Lei Meiqing Guo Aiguo Hu Mingjian |
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| Institution: | Liu Guanshi1,Meng Qingshan1,Lei Meiqing2,Guo Aiguo1,Hu Mingjian1(1.State Key Laboratory of Geomechanics , Geotechnical Engineering,Institute ofRock , Soil Mechanics,Chinese Academy of Sciences,Wuhan,430071,China,2.Geoengineering Testing , Measurement Center,Institute.of Rock , Soil Mechanics,Wuhan 430071,China) |
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| Abstract: | In this paper,methods of field load tests and numerical simulation as well as monitoring were synthetically adopted to study the creep characteristics of soft ground of expressway treated with plastic drainage belt.The results indicated that the relationship of log creep settlement rate of soft ground and log time can be fitted by linear function,and that the creep settlement curves under last two level of load are highly similar,but the lateral creep rates approach to zero.The calculating settlement with c... |
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| Keywords: | expressway creep soft ground load test numerical simulation |
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