可液化地基土性分类对比研究
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摘要
地震液化现场原位实测数据是地基液化判别方程建立的主要依据之一。在常见的可液化地基土中,粉土与砂土的液化特性差异较大,使用世界范围内不同地区的地震液化现场实测数据时,就存在土性分类标准的匹配问题。笔者搜集了世界范围内19次大地震106个场地共509组基于静力触探指标的地基液化现场实测数据,并将我国的基于静力触探指标的土性分类标准与通行于欧美的土性分类标准进行了对比分析。结果表明,二者在对可液化的粉土和砂土的区分上存在较高的一致性,为利用不同地区的地震液化现场实测数据进行液化标准的研究提供了理论依据,具有较强的工程实践意义。
The field testing liquefaction data is one of the major foundation data to establish a model of evaluating the liquefaction of soils.But the classification criterions of soils in different country differ from each other.Thus,when the field testing liquefaction data from the various areas around the world are simultaneously employed to build a model to access the soil liquefaction,a extremely crucial issue appears that whether the different criterion can be matching.On the basis of the field testing liquefaction data of cone penetration test from 19 strong earthquakes around the world,the two major classification criterions are compared with each other.The result indicates that the extreme consistency exists in them,which provides an important theoretic foundation to employ various field of testing liquefaction data around the world.
The field testing liquefaction data is one of the major foundation data to establish a model of evaluating the liquefaction of soils.But the classification criterions of soils in different country differ from each other.Thus,when the field testing liquefaction data from the various areas around the world are simultaneously employed to build a model to access the soil liquefaction,a extremely crucial issue appears that whether the different criterion can be matching.On the basis of the field testing liquefaction data of cone penetration test from 19 strong earthquakes around the world,the two major classification criterions are compared with each other.The result indicates that the extreme consistency exists in them,which provides an important theoretic foundation to employ various field of testing liquefaction data around the world.
引文
[1]孙悦,袁晓铭.第11届国际土动力学和地震工程会议及第13届地震工程会议砂土液化研究综述[J].世界地震工程,2006,22(4):15-20.
[2]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.
[3]周健,白冰,徐建平.土动力理论与计算[M].北京:中国建筑工业出版社,2001:124-125.
[4]Seed H.B,Tokimatsu K.The influence of SPTproce-dures in soil liquefaction resistance evaluations[J].Geotech.Engrg.Div,ASCE,1985,111(12):1425-1445.
[5]Youd T.L,Idriss I.M.Liquefaction resistance ofsoils:Summary report from the 1996 NCEER and 1998NCEER/NSF workshops on evaluation of liquefaction resist-ance of soils[J].Geotechnical and Geoenvironmental Engi-neering,ASCE,2001,(4):297-313.
[6]Lin,P.S,Chang T.S,Chang C.W.Application oflarge penetration tests in the evaluation of gravelly soil lique-faction potential[J].Proc.,Conf.on Comprehensive Evalua-tion of Soil Liquefaction Analysis on Chi-Chi Earthquake,Taichung,Taiwan,2002:121-124.
[7]C.H.Juang,David V Rosowsky.Reliability-basedmethod for assessing liquefaction potential of soils[J].Geotechnical and Geoenvironmental Engineering,ASCE,1999,
(3):378-387.
[8]Sheng-Yao La,Ping-Sien Lin.Regression modelfor evaluating liquefaction potential by discriminant analysis ofSPTN value[J].J Can,Geotech,2005,42(3):856-875.
[9]陈国兴,张克绪,谢君斐.以剪切波速为指标的液化判别方法及其适用性[J].哈尔滨建筑大学学报,1996,29(1):97-103.
[10]C.H.Juang,C.J.Chen.CPT liquefaction analysis,part 1:Determination of limit state function[J].Geotech-nique,2000,(5):583-592.[11〗C.H.Juang,C.J.Chen.CPT liquefaction analysis,part 2:Reliability for design[J].Geotechnique.2000,(5):593-599.
[12]江静贝,符圣聪.基于静力触探的液化势概率估计与判别标准[J].工程抗震与加固改造,2005,27(1):70-74.
[13]R.E.S.Moss,R.B.Seed.CPT-based probabilisticand deterministic assessment of in situ seismic soil liquefactionpotential[J].Geotechnical and Geoenvironmental Engineer-ing,ASCE,2006,(8):1032-1051.
[14]C.Hsein Juang,Haiming Yuan.Simplified cone pen-etration test-based method for evaluating liquefaction resist-ance of soils[J].Geotechnical and Geoenvironmental Engi-neering,ASCE,2003,(1):66-79.
[15]Sheng-Yao Lai,Wen-Jong Chang.Logistic re-gression model for evaluating soil liquefaction probability usingCPTdata[J].Geotechnical and Geoenvironmental Engineer-ing,ASCE,2006,(5):694-704.
[16]C.H.Juang,C.J.Chen.CPT liquefaction analysis,part 1:Determination of limit state function[J].Geotech-nique,2000,(5):583-592.
[17]C.H.Juang,C.J.Chen.CPT liquefaction analysis,part 2:Reliability for design[J].Geotechnique.2000,(5):593-599.
[18]C.Hsein Juang,Tao Jiang.Assessing probability-based methods for liquefaction potential evaluation[J].Geotechnical and Geoenvironmental Engineering,ASCE,2002,(6):580-589.
[19]C.Hsein Juang,Sunny Ye Fang.First order reliabili-ty method for probabilistic liquefaction trigging analysis usingCPT[J].Geotechnical and Geoenvironmental Engineering,ASCE,2006,(5):337-350.
[20]Youd T.L,Idriss I.M.Liquefaction resistance ofsoils:Summary report from the 1996 NCEER and 1998NCEER/NSF workshops on evaluation of liquefaction resist-ance of soils[J].Geotechnical and Geoenvironmental Engi-neering,ASCE,2001,(4):297-313.
[2]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.
[3]周健,白冰,徐建平.土动力理论与计算[M].北京:中国建筑工业出版社,2001:124-125.
[4]Seed H.B,Tokimatsu K.The influence of SPTproce-dures in soil liquefaction resistance evaluations[J].Geotech.Engrg.Div,ASCE,1985,111(12):1425-1445.
[5]Youd T.L,Idriss I.M.Liquefaction resistance ofsoils:Summary report from the 1996 NCEER and 1998NCEER/NSF workshops on evaluation of liquefaction resist-ance of soils[J].Geotechnical and Geoenvironmental Engi-neering,ASCE,2001,(4):297-313.
[6]Lin,P.S,Chang T.S,Chang C.W.Application oflarge penetration tests in the evaluation of gravelly soil lique-faction potential[J].Proc.,Conf.on Comprehensive Evalua-tion of Soil Liquefaction Analysis on Chi-Chi Earthquake,Taichung,Taiwan,2002:121-124.
[7]C.H.Juang,David V Rosowsky.Reliability-basedmethod for assessing liquefaction potential of soils[J].Geotechnical and Geoenvironmental Engineering,ASCE,1999,
(3):378-387.
[8]Sheng-Yao La,Ping-Sien Lin.Regression modelfor evaluating liquefaction potential by discriminant analysis ofSPTN value[J].J Can,Geotech,2005,42(3):856-875.
[9]陈国兴,张克绪,谢君斐.以剪切波速为指标的液化判别方法及其适用性[J].哈尔滨建筑大学学报,1996,29(1):97-103.
[10]C.H.Juang,C.J.Chen.CPT liquefaction analysis,part 1:Determination of limit state function[J].Geotech-nique,2000,(5):583-592.[11〗C.H.Juang,C.J.Chen.CPT liquefaction analysis,part 2:Reliability for design[J].Geotechnique.2000,(5):593-599.
[12]江静贝,符圣聪.基于静力触探的液化势概率估计与判别标准[J].工程抗震与加固改造,2005,27(1):70-74.
[13]R.E.S.Moss,R.B.Seed.CPT-based probabilisticand deterministic assessment of in situ seismic soil liquefactionpotential[J].Geotechnical and Geoenvironmental Engineer-ing,ASCE,2006,(8):1032-1051.
[14]C.Hsein Juang,Haiming Yuan.Simplified cone pen-etration test-based method for evaluating liquefaction resist-ance of soils[J].Geotechnical and Geoenvironmental Engi-neering,ASCE,2003,(1):66-79.
[15]Sheng-Yao Lai,Wen-Jong Chang.Logistic re-gression model for evaluating soil liquefaction probability usingCPTdata[J].Geotechnical and Geoenvironmental Engineer-ing,ASCE,2006,(5):694-704.
[16]C.H.Juang,C.J.Chen.CPT liquefaction analysis,part 1:Determination of limit state function[J].Geotech-nique,2000,(5):583-592.
[17]C.H.Juang,C.J.Chen.CPT liquefaction analysis,part 2:Reliability for design[J].Geotechnique.2000,(5):593-599.
[18]C.Hsein Juang,Tao Jiang.Assessing probability-based methods for liquefaction potential evaluation[J].Geotechnical and Geoenvironmental Engineering,ASCE,2002,(6):580-589.
[19]C.Hsein Juang,Sunny Ye Fang.First order reliabili-ty method for probabilistic liquefaction trigging analysis usingCPT[J].Geotechnical and Geoenvironmental Engineering,ASCE,2006,(5):337-350.
[20]Youd T.L,Idriss I.M.Liquefaction resistance ofsoils:Summary report from the 1996 NCEER and 1998NCEER/NSF workshops on evaluation of liquefaction resist-ance of soils[J].Geotechnical and Geoenvironmental Engi-neering,ASCE,2001,(4):297-313.
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