| 软土中桩基工后长期沉降的预测模型 |
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| 引用本文： | 赵春彦,郑国勇,杨龙才.软土中桩基工后长期沉降的预测模型[J].中南大学学报(自然科学版),2011,42(2). |
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| 作者姓名： | 赵春彦 郑国勇 杨龙才 |
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| 作者单位： | 1. 中南大学土木建筑学院,湖南长沙,410075
2. 同济大学道路与交通工程教育部重点实验室,上海,201804 |
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| 摘 要： | 基于软土中桩基工后长期沉降的机理,采用理论分析和工程实际相结合的方法,提出适用于软土中桩基工后长期沉降的预测模型.研究结果表明:提出的预测模型和简化预测模型均可综合考虑地基土体的固结和蠕变,能很好地反映沉降发展的实际情况:但基于土体固结和蠕变对桩基工后沉降的影响程度,对非挤土桩基工后40 d后的实测沉降,可考虑选用简化预测模型进行预测,在其他情况下则宜采用未简化的预测模型进行预测.
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| 关 键 词： | 桩基 固结 蠕变 工后长期沉降 预测模型 |
Predicting model on long-term settlement after construction of pile foundation in soft clay |
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| ZHAO Chun-yan,ZHENG GUO-yong,YANG Long-cai.Predicting model on long-term settlement after construction of pile foundation in soft clay[J].Journal of Central South University:Science and Technology,2011,42(2). |
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| Authors: | ZHAO Chun-yan ZHENG GUO-yong YANG Long-cai |
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| Institution: | ZHAO Chun-yan1,ZHENG GUO-yong1,YANG Long-cai2 (1.School of Civil Engineering and Architecture,Central South University,Changsha 410075,China,2.Key Laboratory of Road and Traffic Engineering of Ministry of Education,Tongji University,Shanghai 201804,China) |
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| Abstract: | On the basis of mechanism of long-term settlement after construction of pile foundation in soft clay,and combining theoretical analyses with engineering practice,the model applicable to prediction of long-term settlement after construction of pile foundation was put forward.The results show that the predicting model and the simplified predicting model can all take consolidation and creep behavior of soft subsoil into account and reflect the practical situation of settlement development well.But considering ... |
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| Keywords: | pile foundation consolidation creep long-term settlement after construction predicting model |
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