| 砂土地基地震液化沉降的两种简易计算方法的对比分析 |
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| 引用本文： | 叶斌,叶冠林,长屋淳一.砂土地基地震液化沉降的两种简易计算方法的对比分析[J].岩土工程学报,2010(Z2). |
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| 作者姓名： | 叶斌 叶冠林 长屋淳一 |
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| 作者单位： | 同济大学地下建筑与工程系;同济大学岩土及地下工程教育部重点实验室;上海交通大学土木工程系;地域地盘环境研究所; |
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| 基金项目： | 国家科技支撑计划(2008BAJ08B14-06) |
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| 摘 要： | 利用两种简易方法对日本某核电站的砂性土地基在地震液化后的大变形沉降进行了计算和对比分析。这两种简易的实用方法只需要利用标准贯入试验数据就可以操作。计算结果表明,该核电站的砂性土地基在L2级地震作用下会发生较大的地面沉降,并可能对地下管线造成损坏。由于两种方法的计算原理相同,因此计算所得到的地基分层沉降趋势基本一致,但是在数值上存在着较大的差异,这主要是由于两种方法建立的基础试验数据不同以及具体计算方法上存在着差异所造成的。
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| 关 键 词： | 砂土地基 地震 液化 沉降 |
Comparison of two simple methods for assessing subsidence of sandy ground caused by liquefaction in earthquake |
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| YE Bin,YE Guan-lin,Nagaya Junichi.Comparison of two simple methods for assessing subsidence of sandy ground caused by liquefaction in earthquake[J].Chinese Journal of Geotechnical Engineering,2010(Z2). |
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| Authors: | YE Bin YE Guan-lin Nagaya Junichi |
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| Affiliation: | YE Bin1,2,YE Guan-lin3,Nagaya Junichi4 (1.Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China,2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education,3.Shanghai Jiao Tong University,Shanghai 200240,4.Geo-Research Institutive,Osaka,Japan) |
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| Abstract: | Subsidence of a sandy ground in a nuclear power plant,Japan,is calculated using two kinds of simple methods.Only the data of SPT N-value is needed in calculation.The calculation results indicate that the ground will subside largely in a L2 level earthquake due to liquefaction.The two methods show the same trend of ground deformation because the basic principles of the two methods are the same.However,the subsidence value is much different,which is mainly caused by the different basic experimental data and t... |
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| Keywords: | sandy ground earthquake liquefaction subsidence |
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