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适用于新疆场地的剪切波速液化判别公式

赵倩玉, 孙锐

赵倩玉, 孙锐. 适用于新疆场地的剪切波速液化判别公式[J]. 岩土工程学报, 2013, 35(zk2): 383-388.
引用本文: 赵倩玉, 孙锐. 适用于新疆场地的剪切波速液化判别公式[J]. 岩土工程学报, 2013, 35(zk2): 383-388.
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ZHAO Qian-yu, SUN Rui. A shear-wave velocity discrimination formula for liquefaction applicable to Xinjiang region[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 383-388.
Citation: ZHAO Qian-yu, SUN Rui. A shear-wave velocity discrimination formula for liquefaction applicable to Xinjiang region[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 383-388.
shu

适用于新疆场地的剪切波速液化判别公式  English Version

  • 中国地震局地震工程与工程振动重点实验室,中国地震局工程力学研究所,哈尔滨 150080

基金项目: 科技部地震行业专项项目（200708001）
详细信息
    作者简介:

    赵倩玉(1987- )，女，黑龙江大庆人，现为硕士研究生，主要从事土动力学研究。E-mail: wz_zqy@163.com。

  • 中图分类号: TU413.5

A shear-wave velocity discrimination formula for liquefaction applicable to Xinjiang region

  • Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, CEA, Harbin 150080, China

摘要

    摘要
  • 摘要: 2003年新疆巴楚—伽师地区发生了MS6.8级地震,地震伴随有大规模砂土液化现象发生。通过现场调查获取了44个场地的剪切波速数据,其中包含19个液化场地勘察点和25个非液化场地勘察点。使用现有两种典型剪切波速判别液化方法对新疆数据进行预测,结果表明该地区土性特殊,判别公式均不适用。据此,依据新疆场地实测数据提出了适用于新疆地区的剪切波速液化线性判别公式。建立的液化判别公式总成功率达84%,对液化和非液化场地回判成功率均为84%,公式形式简单明了,可靠度良好,可为新疆地区液化判别及相关地区性标准制订提供参考。
    Abstract: In 2003, an MS6.8 earthquake occurred in Bachu-Jiashi region of Xinjiang, causing large-scale liquefied phenomenon. 44 in-situ Vs records are collected, including 19 liquefied survey points and 25 non-liquefied points. The shear-wave velocity of the in-situ records is verified using two typical liquefaction prediction methods, and all the success discrimination ratios are not satisfied. So a discrimination formula for soil liquefaction applicable to the Xinjiang region is proposed. This formula is based on the Chinese code for seismic design of buildings (GB50011—2010), which is a linear model. The formula is brief and convenient, while the evaluation success ratio of the liquefied sites is 84% and that of the non-liquefied sites is 84%, with the total discrimination success ratio being 84%. Based on the real data analysis, the proposed discrimination method is quite reliable, and it may provide technical support for liquefaction prediction in Xinjiang and the relevant regions.
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    • 参考文献(10)
  • [1] 李兆焱. 基于巴楚地震调查的液化判别方法研究[D]. 哈尔滨: 中国地震局工程力学研究所, 2012. (LI Zhao-yan. A study into liquefaction discrimination methods based on surveys of the bachu earthquake[D]. Haerbin: Institute of Engineering Mechanics, 2012. (in Chinese))
    [2] ANDRUS R D, STOKOE II K H. Liquefaction resistance of soils from shear-wave velocity[J]. Journal of Geotechnical and Geoenviromental Engineering, ASCE, 2000, 126(11): 1015-1025.
    [3] YOUD T L, IDRISS I M. Liquefaction resistance of soils: report from the 1996 NCEER and 1998NCEER/NSF workshops on evaluation of liquefaction resistance of soils[J]. Journal of Geotechnical and Geoenviromental Engineering, ASCE, 2001, 127(4): 297-313.
    [4] GB50021—2001岩土工程勘察规范[S]. 北京: 中国建筑工业出版社, 2001. (GB0011-2001 Code for investigation of geotechnical engineering[S]. Beijing: China Architecture and Building Press, 2001. (in Chinese))
    [5] TBJ1—88 建筑地基基础设计规范[S]. 北京: 中国建筑工业出版社, 1993. (TBJ1—88 Code for design of building foundation[S]. Beijing: China Architecture and Building Press, 1993. (in Chinese))
    [6] 石兆吉, 郁寿松, 丰万玲. 土壤液化势的剪切波速判别方法[J]. 岩土工程学报, 1993, 15(1): 74-80. (SHI Zhao-ji, YU Shou-song, FENG Wan-ling. Shear wave velocity based soil liquefaction evaluation[J]. Chinese Journal of Geotechnical Engineering, 1993, 15(1): 74-80. (in Chinese))
    [7] DOBRY R, LADD R S. Discussion to “Soil liquefaction and cyclic mobility evaluation for level ground during earthquakes” by Seed H B and “Liquefaction potential: science versus practice” by Peck R B[J]. Journal of the Geotechnical Engineering Division, ASCE, 1980, 106(6): 720-724.
    [8] SYKORA D W. Creation of a data base of seismic shear wave velocities for correlation analysis (GL-87-26) [R]. Geotech Lab Misc, 1987.
    [9] ROBERTSON P K, WOELLER D J, FINN W D L. Seismic cone penetration test for evaluation liquefaction potential under cyclic loading[J]. Can Geotech J, 1992, 29(4): 686-695.
    [10] 谢君斐. 关于修改抗震规范砂土液化判别式的几点意见[J]. 地震工程与工程振动, 1984, 4(2): 95-126. (XIE Jun-fei. Some comments on the formula for estimating the liquefaction of sand in revised a seismic design code[J]. Journal of earthquake engineering and engineering vibration 1984, 4(2): 95-126. (in Chinese))
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出版历程
  • 收稿日期:  2013-06-06
  • 发布日期:  2013-11-24

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