| 基于NCEER法与建筑抗震设计规范法的砂土液化判别方法* |
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| 引用本文： | 冯,波.基于NCEER法与建筑抗震设计规范法的砂土液化判别方法*[J].水运工程,2016(6):159-164. |
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| 作者姓名： | 冯 波 |
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| 作者单位： | 中交四航工程研究院有限公司，中交交通基础工程环保与安全重点实验室，广东 广州 510230 |
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| 基金项目： | 中国博士后科学基金（2014M562179） |
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| 摘 要： | 《建筑抗震设计规范》中建议的方法对深层地基土的判别结果偏于保守，NCEER法判别计算复杂，另外对深层地基土的判别也偏于不安全。对基于标准贯入击数的NCEER液化判别方法进行简化，推导了临界锤击数的表达式，并将其与规范法相结合，提出改进的简化临界锤击数计算方法。该计算方法仅与计算点深度与地下水位埋深有关，公式应用方便，便于工程人员掌握。
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| 关 键 词： | 砂土 抗震 液化 NCEER |
Sandy soil liquefaction identifying method based on NCEER method and code for seismic design of buildings |
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| FENG Bo.Sandy soil liquefaction identifying method based on NCEER method and code for seismic design of buildings[J].Port & Waterway Engineering,2016(6):159-164. |
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| Authors: | FENG Bo |
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| Institution: | Key Laboratory of Environmental Protection and Security of Transportation Infrastructure Projects of CCCC,CCCC Fourth Harbor Engineering Institute Co.,Ltd.,Guangzhou 510230,China |
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| Abstract: | The method suggested by Code for Seismic Design of Buildings is conservative for deep soils, while NCEER method is complexity for engineering practice, in addition, the calculation result is unsafe for deep soils.In this paper,the NCEER method based on standard blow number is simplified,and the expression of critical blow count is derived.The improved method based on the simplified NCEER method and code method is proposed,which can be expressed as a function of depth of water table and calculation point and easy for engineers to master. |
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| Keywords: | sand liquefaction earthquake NCEER |
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