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| 土壤剪切波速与埋深关系的统计分析 | |
| 引用本文： | 邱志刚,薄景山,罗奇峰.土壤剪切波速与埋深关系的统计分析[J].世界地震工程,2011,27(3). |
| 作者姓名： | 邱志刚 薄景山 罗奇峰 |
| 作者单位： | 1. 同济大学结构工程与防灾研究所,上海,200092 2. 防灾科技学院,河北三河065201;中国地震局工程力学研究所,黑龙江哈尔滨150080 3. 间济大学上海防灾救灾研究所,上海,200092 |
| 基金项目： | 国家自然科学基金项目(51078273) |
| 摘 要： | 为解决工程中剪切波速测试不能达到工作要求深度的问题,文中根据大量黑龙江地区的地震安全性评价资料,运用主要的经验公式:线性拟合Y=a+bX;多项式拟合Y=a+bX+cX2;指数拟合Y=aXb,分别统计了土壤剪切波速与埋深之间的关系,给出回归参数及适用深度。结果表明:(1)剪切波速与杂填土土层深度无论采用何种方式回归,都得不到令人满意的结果;(2)除粗砂多项式拟合方式略好于线性拟合方式外,各土类剪切波速与土层深度的关系采用线性拟合方式要优于多项式和指数拟合方式;(3)采用多项式和指数拟合方式也可以得到比较令人满意的结果;(4)除粘土(可塑、软塑)外,采用多项式拟合方式要略优于指数拟合方式。结果可为今后黑龙江地区工程场地分类,抗震设防小区化提供参考依据。 |
| 关 键 词： | 剪切波速 土壤埋深 经验公式 统计分析 |
Statistical analysis of relationship between shear wave velocity and depth of soil |
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| QIU Zhigang,BO Jingshan,LUO Qifeng.Statistical analysis of relationship between shear wave velocity and depth of soil[J].World Information On Earthquake Engineering,2011,27(3). | |
| Authors: | QIU Zhigang BO Jingshan LUO Qifeng |
| Institution: | QIU Zhigang1,BO Jingshan2,3,LUO Qifeng4(1.Institute of Structural Engineering and Disaster Reduction,Tongji University,Shanghai 200092,China,2.Institute of Disaster Prevention,Sanhe 065201,3.Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,4.Shanghai Institute of Disaster Prevention and Relief,China) |
| Abstract: | Measuring shear wave velocity often can not reach the standard required depth in engineering.To cope with this problem,based on seismic safety evaluation data of Heilongjiang,three relationships between shear wave velocities and soil depths are analyzed.The primary empirical formule are the linear fitting Y=a+bX,polynomial fitting Y=a+bX+cX2 and exponential fitting Y=aXb,and the regression parameters and applicable depths were provided.The results show that(1)it is not satisfied by whatever means of regress... |
| Keywords: | shear wave velocity soil depth empirical formule statistical analysis |
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