渤海浅表土层剪切波速与埋深间的关联性
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摘要
剪切波速是场地重要的动力学参数。利用渤海浅表土层的剪切波速资料,研究建立了剪切波速与埋深的统计关系式。收集整理了渤海浅表土层的剪切波速资料,建立了相应的数据库,利用ORIGIN软件绘制了所有土类及按土类别的剪切波速与埋深间的散点图,结合散点图采用拟合优度为评价指标,选取了指数形式的回归方程,拟合给出了粉质粘土、粉砂、细砂、粉土、粘土这5种类别土的剪切波速与埋深间的回归系数,揭示了两者间的内在关联性。结果表明:渤海浅表土层剪切波速与埋深存在良好的指数关系,所得结果可直接供无剪切波速的场地参考使用。
Shear wave velocity is an important dynamic parameter of site.Based on the test data of shear wave velocity of the superficial soil layers in Bohai Sea,the statistical relations between shear wave velocity and depth of soil were established.The database of shear wave velocity was founded by collecting and sorting out the relative data of superficial soil layers in Bohai Sea.The scatter diagrams of soil shear wave velocity and depth were drawn,including all soil types and the various categories of soil and the regression equation of exponential form was selected by adopting the goodness-of-fit as evaluation index.The regression coefficients about shear wave velocity with depth of all soil types and five categories of soils,including silt clay,silt,fine sand,silt and clay were fitted.The results show that there is a good relationship in the exponential form between the shear wave velocity and depth of superficial soil layers in Bohai Sea and the obtained results can directly provide a reference to the field without shear wave velocity to use.
Shear wave velocity is an important dynamic parameter of site.Based on the test data of shear wave velocity of the superficial soil layers in Bohai Sea,the statistical relations between shear wave velocity and depth of soil were established.The database of shear wave velocity was founded by collecting and sorting out the relative data of superficial soil layers in Bohai Sea.The scatter diagrams of soil shear wave velocity and depth were drawn,including all soil types and the various categories of soil and the regression equation of exponential form was selected by adopting the goodness-of-fit as evaluation index.The regression coefficients about shear wave velocity with depth of all soil types and five categories of soils,including silt clay,silt,fine sand,silt and clay were fitted.The results show that there is a good relationship in the exponential form between the shear wave velocity and depth of superficial soil layers in Bohai Sea and the obtained results can directly provide a reference to the field without shear wave velocity to use.
引文
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[16]中华人民共和国国家标准.构筑物抗震设计规范(GB50191-93)[S].1993.GB50191-93 Design code for antiseismic of special structure[S].1993.
[2]李存志,李向新,姚明波等.昆明盆地剪切波速与地基特性相关分析研究[J].2006,22(3):1-5.LI Cunzhi,LI Xiangxin,YAO Mingbo.Correlation analyses between shear wave velocity and ground properties of Kunming basin[J].Journal ofKunming Metallurgy College,2006,22(3):1-5
[3]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):81-88.QIU Zhigang,BO Jingshan,LUO Qifeng.Statistical analysis of relationship between shear wave velocity and depth of soil[J].World EarthquakeEngineering,2011,27(3):81-88
[4]陶小三,杨伟林,高志兵等.南京河西地区岩土体剪切波速与土层深度的关系[J].防灾减灾工程学报,2009,29(3):320-324.TAO XiaoSan,YANG Weilin,GAO Zhibing.Relation between depth and shear wave speed of bedrocks and soil in he xi district of Nanjing city[J].Journal of Disaster Prevention and Mitigation Engineering,2009,29(3):320-324.
[5]刘艳春.山西大同市区剪切波速与土层岩性及深度关系的研究[J].山西地震,2011(2):39-41.LIU Yanchun.Study on the relationship between shear wave velocity and soil lithology and depth in datong city[J].Earthquake Research inShanxi,2011(2):39-41
[6]高玉峰,刘汉龙.合肥膨胀土剪切波速的特征分析[J].岩土工程学报,2003,25(3):371-373.GAO Yufeng,LIU Hanlong.Study on shear wave velocities in expansive soils of hefei[J].Chinese Journal of Geotechnical Engineering,2003,25(3):371-373.
[7]苏旭,杨丽萍,邹海宁.西宁市区土层剪切波速随深度变化特征[J].高原地震,2009,21(1):12-16.SU Xu,YANG Liping,ZOU Haining.Characteristics of shearing wave velocity changed with depth of soil layer in xining urban area[J].PlateauEarthquake Research,2009,21(1):12-16.
[8]齐文浩,刘德东,兰景岩等.西安阎良区土层剪切波速统计分析[J].防灾科技学院学报,2008,10(4):10-12.QI Wenhao,LIU Dedong,LAN Jingyan.Statistical analysis of soil layers’shear wave in yan liang,xi’an[J].Journal of Institute of Disaster-pre-vention Science and Technology,2008,10(4):10-12.
[9]齐静静,山东东营城区剪切波速回归分析及应用[J].勘察科学技术,2011,(2):23-26.QI Jingjing.Regressive analysis and application of shear wave velocity of dongying city area[J].Investigation of Science and Technology,2011(2):23-26.
[10]战吉艳,陈国兴,刘建达.苏州城区深软场地土剪切波速与土层深度的经验关系[J].世界地震工程,2009,25(2):11-17.ZHAN Jiyan,CHEN Guoxing,LIU Jianda.Empirical relationship between shear wave velocity and soil depth on deep soft sites in urban area ofSuzhou city[J].World Earthquake Engineering,2009,25(2):11-17.
[11]刘红帅,粘性土剪切波速不确定性的统计分析[J].世界地震工程,2010,26:99-103.LIU HongShuai,ZHENG Tong,BO Jingshan.Statistical analysis of uncertainty for shear wave velocities of cohesive soils[J].World EarthquakeEngineering,2010,26:99-103.
[12]齐鑫,丁浩.下辽河平原区剪切波速与土层埋深关系分析[J].世界地震工程,2012,28(3):151-156.QI Xin,DING Hao.Analysis of relationship between shear wave velocity and depth of soil layers in downstream liaohe river plain[J].WorldEarthquake Engineering,2012,28(3):151-156.
[13]周杨锐,董明明,吴海京等.渤海浅层沉积物剪切波速与深度的相关性分析[J].工程勘察,2011,(6):90-93.ZHOU Yangrui,DONG Minging,WU Haijing.Correlative analysis between shear wave velocity and depth of shallow sediments in bohai gulf[J].Geotechnical Investigation&Surveying,2011,(6):90-93.
[14]陈国光,徐杰,高战武.华北渤海湾盆地大震的构造特征[J].华北地震科学,2003,21(2):7-9.CHEN Guogang,XU Jie,Gao Zhanwu.Seismotectonic features of the bohai bay basin in north china[J].North China Earthquake Sciences,2003,21(2):7-9.
[15]兰景岩,刘红帅,吕悦军.渤海土类动力非线性参数及合理性[J].哈尔滨工程大学学报,2012,33(9):1079-1085.LAN Jingyan,LIU Hongshuai,LV Yuejun.Dynamic nonliner parameters of soil in the bohai sea and their rationality[J].Journal of Harbin Engi-neering University,2012,33(9):1079-1085.
[16]中华人民共和国国家标准.构筑物抗震设计规范(GB50191-93)[S].1993.GB50191-93 Design code for antiseismic of special structure[S].1993.
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