| 强夯砂土地基中试验指标可替代性分析 |
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| 引用本文： | 陈明杰,桑登峰,牛文宣,胡兴昊.强夯砂土地基中试验指标可替代性分析[J].水运工程,2019(2):138-144. |
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| 作者姓名： | 陈明杰 桑登峰 牛文宣 胡兴昊 |
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| 作者单位： | 中交四航工程研究院有限公司，广东 广州 510230；中交交通基础工程环保与安全重点实验室，广东 广州510230,中交四航工程研究院有限公司，广东 广州 510230；中交交通基础工程环保与安全重点实验室，广东 广州510231,中交四航工程研究院有限公司，广东 广州 510230；中交交通基础工程环保与安全重点实验室，广东 广州510232,中交四航工程研究院有限公司，广东 广州 510230；中交交通基础工程环保与安全重点实验室，广东 广州510233 |
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| 基金项目： | 国家重点研发计划资助项目（2017YFC0805303）；广东省省级科技计划项目（2017B020221003） |
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| 摘 要： | 针对部分强夯砂土地基由于静力触探试验锥尖阻力过大导致无法触探的问题,以及如何正确选择强夯砂土地基表层评价指标的问题,通过强夯砂土地基加固效果检测试验结果分析、试验结果数据回归等方法,明确了静力触探试验与标准贯入试验在强夯砂土地基加固效果评价上是一致的,但二次变形模量与地基系数的试验结果相关性较差,不可互相替代。
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| 关 键 词： | 强夯砂土地基 标贯试验 静力触探 二次变形模量 地基系数 |
Substituability analysis of test indexes in dynamic compacted sandy soil foundation |
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| CHEN Ming-jie,SANG Deng-feng,NIU Wen-xuan and HU Xing-hao.Substituability analysis of test indexes in dynamic compacted sandy soil foundation[J].Port & Waterway Engineering,2019(2):138-144. |
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| Authors: | CHEN Ming-jie SANG Deng-feng NIU Wen-xuan and HU Xing-hao |
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| Institution: | CCCC Fourth Harbor Engineering Institute Co.,Ltd.,Guangzhou 510230,China; CCCC Key Lab of Environmental Protection & Safety in Foundation Engineering of Transportation,Guangzhou 510230,China,CCCC Fourth Harbor Engineering Institute Co.,Ltd.,Guangzhou 510230,China; CCCC Key Lab of Environmental Protection & Safety in Foundation Engineering of Transportation,Guangzhou 510231,China,CCCC Fourth Harbor Engineering Institute Co.,Ltd.,Guangzhou 510230,China; CCCC Key Lab of Environmental Protection & Safety in Foundation Engineering of Transportation,Guangzhou 510232,China and CCCC Fourth Harbor Engineering Institute Co.,Ltd.,Guangzhou 510230,China; CCCC Key Lab of Environmental Protection & Safety in Foundation Engineering of Transportation,Guangzhou 510233,China |
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| Abstract: | In order to solve the problems that the tip resistance of the cone is too large to be touched in the static sounding test of some strongly compacted sandy soil foundation,and how to choose correct dynamic compaction sand surface evaluation indexes,through the dynamic compacted sandy soil foundation reinforcement effect test results analysis and test results data regression methods,it is clear that the static penetration test and the standard penetration test are consistent in evaluating the effect of consolidation of compacted sand foundation,however,the correlation between the secondary deformation modulus and the test results of the foundation coefficient is poor and cannot be replaced. |
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