关于软弱粉质粘土地震液化或震陷的判别标准
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摘要
文中简要介绍了判别细粒土地震液化分析方法的发展历程,指出了工程建设中考虑细粒土地震液化问题的必要性。基于已有研究成果,阐述了可用于工程设计的软弱粉质粘土地震液化简化判别方法,并对建筑抗震设计新规范中增加的相关条款进行了说明解释。
Liquefaction of low plasticity fine soils is observed during past earthquakes.It shall bear in mind at investigating seismic safety of engineering site that evaluation of liquefaction potential is carried out of the fine soils and the effective measure of liquefaction mitigation is taken.Based on recent earthquake discovery and research developments,the liquefaction criteria are suggested of the fine-grained soils to Chinese code for seismic design of buildings.
Liquefaction of low plasticity fine soils is observed during past earthquakes.It shall bear in mind at investigating seismic safety of engineering site that evaluation of liquefaction potential is carried out of the fine soils and the effective measure of liquefaction mitigation is taken.Based on recent earthquake discovery and research developments,the liquefaction criteria are suggested of the fine-grained soils to Chinese code for seismic design of buildings.
引文
[1]《汪闻韶院士土工问题论文集》编委会,汪闻韶院士土工问题论文集[M].北京:中国建筑工业出版社,1999,30-45.The committee of the selected works on geotechnical engineering of academician Wang Wenshao.Selected works on geotechnical engineering of a-cademician Wang Wenshao[M].Beijing:China Architecture&Building Press,1999.
[2]SDJ10-78水工建筑物抗震设计规范(试行)[S].SDJ 10-78 Specifications for Seismic Design of Hydraulic Structures[S].
[3]SL203-97水工建筑物抗震设计规范[S].SL 203-97 Specifications for Seismic Design of Hydraulic Structures[S].
[4]GB50287-99水利水电工程地质勘察规范[S].GB50287-99 Code for Water Resources and Hydropower Engineering Geotechnical Investigation[S].
[5]Seed,H.B.and Idriss,I.M..Ground motions and soil liquefaction during earthquakes[M].EERI Monograph,Berkeley,Calif,1982.
[6]Youd,T.L.and Idriss I.M..Summary report of the1996 NCEER workshop on evaluation of liquefaction resistance of soils[C]//Salt Lake City,Utah,1997.
[7]Bray,J.D.,Sancio,R.B..Liquefaction susceptibility of fine-grained soils[C]//11th ICSDEE&3th ICEGE,2004,655-662.
[8]Bray,J.D.,Sancio,R.B..Assessment of the liquefaction susceptibility of fine-grained soils[J]JGGE,ASCE,2006,1165-1177.
[9]Seed,R.H.,Recent advances in soil liquefaction engineering[C]//26th Annual ASCE Seminar,CA,2003.
[10]Andrew,D.A.,Martin,G.R..Criteria for liquefaction of silty soils[C]//Proc.,12th WCEE,NZ,Paper0312,2000.
[11]Boulanger,R.W.,Idriss,I.M..Evaluating the potential for liquefaction or cyclic failure of silts and clays[R].Rep.UCD,Calif,2004.
[12]辛鸿博,王余庆.大石河尾矿粘性土的动力变形和强度特征[J].水利学报,1995,11:56-62.XIN Hongbo,WANG Yuqing.Strength and deformation of Dashile slimes[J].Chinese Journal of Hydropower Engineering,1995,11:56-62.
[2]SDJ10-78水工建筑物抗震设计规范(试行)[S].SDJ 10-78 Specifications for Seismic Design of Hydraulic Structures[S].
[3]SL203-97水工建筑物抗震设计规范[S].SL 203-97 Specifications for Seismic Design of Hydraulic Structures[S].
[4]GB50287-99水利水电工程地质勘察规范[S].GB50287-99 Code for Water Resources and Hydropower Engineering Geotechnical Investigation[S].
[5]Seed,H.B.and Idriss,I.M..Ground motions and soil liquefaction during earthquakes[M].EERI Monograph,Berkeley,Calif,1982.
[6]Youd,T.L.and Idriss I.M..Summary report of the1996 NCEER workshop on evaluation of liquefaction resistance of soils[C]//Salt Lake City,Utah,1997.
[7]Bray,J.D.,Sancio,R.B..Liquefaction susceptibility of fine-grained soils[C]//11th ICSDEE&3th ICEGE,2004,655-662.
[8]Bray,J.D.,Sancio,R.B..Assessment of the liquefaction susceptibility of fine-grained soils[J]JGGE,ASCE,2006,1165-1177.
[9]Seed,R.H.,Recent advances in soil liquefaction engineering[C]//26th Annual ASCE Seminar,CA,2003.
[10]Andrew,D.A.,Martin,G.R..Criteria for liquefaction of silty soils[C]//Proc.,12th WCEE,NZ,Paper0312,2000.
[11]Boulanger,R.W.,Idriss,I.M..Evaluating the potential for liquefaction or cyclic failure of silts and clays[R].Rep.UCD,Calif,2004.
[12]辛鸿博,王余庆.大石河尾矿粘性土的动力变形和强度特征[J].水利学报,1995,11:56-62.XIN Hongbo,WANG Yuqing.Strength and deformation of Dashile slimes[J].Chinese Journal of Hydropower Engineering,1995,11:56-62.
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