粉土层液化可能性判断的地震反应分析法
|
摘要
通过对上海粉土层的有效应力地震反应分析,对粉土层的液化势进行了预测。当从50m深度输入唐山地震波时,在地面加速度峰值为0 1g条件下,粉土层不会发生液化;在0 15g和0 2g条件下,粉土层有液化的可能性。当从280m输入唐山地震波时,在0 1g、0 15g和0 2g条件下,粉土层均不会发生液化。
The authors predicted liquefaction potentials of silt in Shanghai area by employing the seismic response analysis with effective stress method. If the Tangshan seismic wave was input at the depth of 50m below the ground level, the silt would not liquefy under the case of ground acceleration peak value of 01g and would potentially liquefy under the cases of ground acceleration peak values of 015g and 02g. If the Tangshan seismic wave was input at the depth of 280m below the ground level, the silt would not liquefy under the three cases above.
The authors predicted liquefaction potentials of silt in Shanghai area by employing the seismic response analysis with effective stress method. If the Tangshan seismic wave was input at the depth of 50m below the ground level, the silt would not liquefy under the case of ground acceleration peak value of 01g and would potentially liquefy under the cases of ground acceleration peak values of 015g and 02g. If the Tangshan seismic wave was input at the depth of 280m below the ground level, the silt would not liquefy under the three cases above.
引文
[1] 石兆吉,郁寿松,王余庆,杨石红.饱和轻亚粘土地基液化可能性判别[J].地震工程与工程振动,1984,4(3):71-81.
[2] HwangJH,YangCW.VerificationofcriticalcyclicstrengthcurvebyTaiwanChi Chiearthquakedata[J].SoilDynamicsandEarthquakeEngineering,2001,21(3):237-257.
[3] 曹宇春,王天龙.上海粉土液化特性及孔压模型的试验研究[J].上海地质,1998,(3):60-64.
[4] 曹宇春.循环荷载作用下粉土孔压上升模型的试验研究[D].上海:同济大学,1999.
[5] SeedHB,IdrissIM,LeeKL,MakdisiFI.DynamicanalysisoftheslideintheLowerSanFernandodamduringtheearthquakeofFebruary9,1971[J].JGeotechEngrgDiv,ASCE,1975,101(GT9):889-911.
[6] 徐志英,沈珠江.地震液化的有效应力二维动力分析方法[J].华东水利学院学报,1981a,(3):1-13.
[7] 徐志英,沈珠江.土坝地震孔隙水压力产生、扩散和消散的有限单元法动力分析[J].华东水利学院学报,1981b,(4):1-12.
[8] 周健,徐志英,土(尾矿)坝的三维有效应力动力反应分析[J].地震工程与工程振动,1984,4(3):60-70.
[9] 徐志英,周健.土坝地震孔隙水压力产生、扩散和消散的三维动力分析[J].地震工程与工程振动,1985,5(4):57-72.
[10] 徐志英,周健.奥罗维尔土坝三维排水有效应力分析[J].水利学报,1991,(6):19-27.
[11] 周健,吴世明,曾国熙.土石坝三维两相动力分析[J].岩土工程学报,1991,13(5):64-69.
[12] 徐志英.奥罗维尔土坝三维简化动力分析[J].岩土工程学报,1996,18(2):82-87.
[13] GuoT,PrakashS.Liquefactionofsiltsandsilt claymixtures[J].JGeotech.GeoenvirEngrg,ASCE,1999,125(8):706-710.
[14] PrakashS,SandovalJA.Liquefactionoflowplasticitysilts[J].SoilDynamicsandEarthquakeEngineering,1992,11(7):373-379.
[15] YamamuroJA,CovertKM.Monotonicandcyclicliquefactionofveryloosesandswithhighsiltcontent[J].J.Geotech.GeoenvirEngrg,ASCE,2001,127(4):314-324.
[16] ArulanandanK,ScottRF.ProjectVELACS controltestresults[J].JGeotech.Engrg,ASCE,1993,119(8):1276-1292.
[17] DuncanJM,ChangCY.Nonlinearanalysisofstressesandstraininsoils[J].JSoilMechFoundDiv,ASCE,1970,96(SM5):1629-1653.
[18] 谢定义.土动力学[M].西安:西安交通大学出版社,1988.
[19] 吴世明,等.土动力学[M].北京:中国建筑工业出版社,2000.
[2] HwangJH,YangCW.VerificationofcriticalcyclicstrengthcurvebyTaiwanChi Chiearthquakedata[J].SoilDynamicsandEarthquakeEngineering,2001,21(3):237-257.
[3] 曹宇春,王天龙.上海粉土液化特性及孔压模型的试验研究[J].上海地质,1998,(3):60-64.
[4] 曹宇春.循环荷载作用下粉土孔压上升模型的试验研究[D].上海:同济大学,1999.
[5] SeedHB,IdrissIM,LeeKL,MakdisiFI.DynamicanalysisoftheslideintheLowerSanFernandodamduringtheearthquakeofFebruary9,1971[J].JGeotechEngrgDiv,ASCE,1975,101(GT9):889-911.
[6] 徐志英,沈珠江.地震液化的有效应力二维动力分析方法[J].华东水利学院学报,1981a,(3):1-13.
[7] 徐志英,沈珠江.土坝地震孔隙水压力产生、扩散和消散的有限单元法动力分析[J].华东水利学院学报,1981b,(4):1-12.
[8] 周健,徐志英,土(尾矿)坝的三维有效应力动力反应分析[J].地震工程与工程振动,1984,4(3):60-70.
[9] 徐志英,周健.土坝地震孔隙水压力产生、扩散和消散的三维动力分析[J].地震工程与工程振动,1985,5(4):57-72.
[10] 徐志英,周健.奥罗维尔土坝三维排水有效应力分析[J].水利学报,1991,(6):19-27.
[11] 周健,吴世明,曾国熙.土石坝三维两相动力分析[J].岩土工程学报,1991,13(5):64-69.
[12] 徐志英.奥罗维尔土坝三维简化动力分析[J].岩土工程学报,1996,18(2):82-87.
[13] GuoT,PrakashS.Liquefactionofsiltsandsilt claymixtures[J].JGeotech.GeoenvirEngrg,ASCE,1999,125(8):706-710.
[14] PrakashS,SandovalJA.Liquefactionoflowplasticitysilts[J].SoilDynamicsandEarthquakeEngineering,1992,11(7):373-379.
[15] YamamuroJA,CovertKM.Monotonicandcyclicliquefactionofveryloosesandswithhighsiltcontent[J].J.Geotech.GeoenvirEngrg,ASCE,2001,127(4):314-324.
[16] ArulanandanK,ScottRF.ProjectVELACS controltestresults[J].JGeotech.Engrg,ASCE,1993,119(8):1276-1292.
[17] DuncanJM,ChangCY.Nonlinearanalysisofstressesandstraininsoils[J].JSoilMechFoundDiv,ASCE,1970,96(SM5):1629-1653.
[18] 谢定义.土动力学[M].西安:西安交通大学出版社,1988.
[19] 吴世明,等.土动力学[M].北京:中国建筑工业出版社,2000.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心