衡水市岩土体剪切波速与土层深度的关系
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中国地震局地壳应力研究所 地壳动力学重点实验室,中国地震局地壳应力研究所 地壳动力学重点实验室,中国地震局地壳应力研究所 地壳动力学重点实验室

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P642

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中国地震局地壳应力研究所中央级公益性科研院所基本科研业务专项(ZDJ2012-01、ZDJ2010-10); 衡水城市活断层探查项目


Empirical relationship between shear wave velocity and depth of soils in urban area of Hengshui city
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Key Laboratory of Crustal Dynamics,Institute of Crustal Dynamics,CEA,Key Laboratory of Crustal Dynamics,Institute of Crustal Dynamics,CEA

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    摘要:

    土体剪切波速在岩土地震工程中应用广泛。本文选取衡水市城区82个典型钻孔的岩土体剪切波速资料,采用三种数学模型进行统计回归分析,利用拟合优度R2值检验回归方程对观测数据的拟合程度。统计结果表明,该地区各类岩土体剪切波速与埋深存在明显的线性相关关系。分别给出了不分土体类别和区分土体类别两种情况下最优统计关系式。利用实际工程钻孔进行剪切波速预测与检验,检验结果表明,文中给出的各类岩土体的剪切波速与埋深经验关系是可靠的,可用于衡水市城区地下100m深度范围内的剪切波速计算。

    Abstract:

    The shear wave velocity of soils is widely used in the field of geotechnical earthquake engineering. We select the data of shear wave velocity of soils from 82 typical boreholes in urban area of Hengshui city for regressive statistic analyses with three mathematical models. The correlation coefficient R2 was used to verify the linear correlation between the shear wave velocity and depth. The regressive statistic analyses show that the shear wave velocity and depth of soils in the district is remarkably correlated linearly. According to two cases with and without considering soil classification,the fittest function between the shear wave velocity and depth of soils in urban area of Hengshui city are obtained. The estimation of the shear wave velocity of soils from a testing borehole has shown that the empirical relation between the shear wave velocity and depth of soils in the district is reliable. We draw a conclution that the empirical relations between the shear wave velocity and depth of soils of Hengshui city in this paper are reliable, which can be used to predict the shear wave velocity of urban area of Hengshui city in the range of 100m depth.

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何仲太,马保起,卢海峰. 衡水市岩土体剪切波速与土层深度的关系[J]. 科学技术与工程, 2014, 14(35): .
HE Zhong-tai, MA Bao-qi, LU Hai-feng. Empirical relationship between shear wave velocity and depth of soils in urban area of Hengshui city[J]. Science Technology and Engineering,2014,14(35).

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  • 收稿日期:2014-08-06
  • 最后修改日期:2014-08-06
  • 录用日期:2014-08-25
  • 在线发布日期: 2014-12-15
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