南京工业大学岩土工程研究所,江苏,南京,210009
纸质出版:2021
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卜屹凡,陈国兴,周正龙,吴琪.动剪切模量与阻尼比的共振柱和动三轴对比试验研究∗[J].防灾减灾工程学报,2021,(2):343-349
Bu Yifan. Comparison Research on the Normalized Dynamic Shear Modulus and Damping Ratio by Resonant Column and Cyclic Triaxial Tests[J]. 2021, (2): 343-349.
利用 GCTS 共振柱试验仪和循环三轴试验仪分别对砂土和黏土进行了动剪切模量和阻尼比试验,研究了共振柱和动三轴试验得到的规准化动剪切模量比 G/Gmax和阻尼比 λ 随剪应变 γ 变化的规律,并考虑了土样类别以及深度对两种方法测得的 G/Gmax和 λ 的影响。试验结果表明,共振柱和动三轴两种试验得到的土体 G/Gmax和 λ 具有良好的一致性,且与土样的深度和类别无关,可将两种试验方法结合起来共同测定土体 10-6~10-2 应变范围内的 G/Gmax和 λ,从而为重大工程场地地震效应分析提供宽应变范围内的 G/Gmax和 λ 曲线。
One of the key issues in the deformation behavior of soil is the measurement of dynamic shear modulus and damping ratio. In order to fundamentally understand the measurement of dynamic shear modulus and damping ratio,using the resonant column apparatus and the cyclic loading triaxial testing system made by GCTS,the resonant column and cyclic triaxial tests on the variation characteristics of the normalized shear modulus(G/Gmax)and damping ratio(λ)with increasing shear strain (γ)were performed. It revealed that the variation trends of G/Gmax and λ with increasing γ obtained from resonant column tests were consistent with those obtained through cyclic triaxial tests,and the consistency was independent of the depth and soil type. Moreover,the two test methods can be combined to obtain the G/Gmax and λ of soil with a strain range of 10?6 to 10?2,which can provide reasonable curves of the G/Gmax and λ for nonlinear analysis on seismic site response of major projects.
孙静,岩土动剪切模量阻尼比试验及应用研究[D].哈尔滨:中国地震局工程力学研究所,2004.Sun J.Experiment and application studies on dynamic shear modulus and damping of geotechnical media[D].Harbin:Institute of Engineering Mechanics China Seis? mological Bureau,2004.(in Chinese)
徐存森,吴俊壁.用扭转单剪、共振柱仪测定空心试样土的动剪切模量[J].大坝观测与土工测试,1992,16(1):37-43.Xu C S,Wu J B.Determination of dynamic shear mod? ulus of hollow soil ample using stokoe type torsional simple/resonant column device[J].Dam Observation and Geotechnical Tests,1992,16(1):37-43.(in Chi? nese)
徐存森,吴俊壁.用扭转单剪、共振柱仪测定某核电站饱和原状砂的动剪切模量[J].大坝观测与土工测试.1996,20(5):36-39.Xu C S,Wu J B.Determination of dynamic shear mod? ulus of saturated and undisturbed sandy soil for the nu? clear power plant using stokoe type torsional simple shear/resonant column device[J].Dam Observation and Geotechnical Tests,1996,20(5):36-39.(in Chi? nese)
王炳辉,陈国兴,胡庆兴.南京细砂动剪切模量和阻尼比的试验研究[J].世界地震工程,2010,26(3):7-15.Wang B H,Chen G X,Hu Q X.Experiment of dynam? ic shear modulus and damping of Nanjing fine sand[J].World Earthquake Engineering,2010,26(3):7-15.(in Chinese)
董全杨.饱和砂土小应变动力特性试验研究[D].杭州:浙江大学,2014.Dong Q Y.Study on the small strain dynamic properties of saturated sand[D].Hangzhou:Zhejiang University,2014(.in Chinese)
孙田.围填海工程场地典型土动力学特性试验研究 [D].南京:南京工业大学,2015.Sun T.Some engineering behavior of cyclic triaxial tests on typical marine soils and sand-gravel mixtures for coastal reclamaionsite[D].Nanjing:Nangjing Tech University,2015.(in Chinese)
尹洪峰,薄景山,李平.核电厂软岩地基地震反应研究 [J].地震工程与工程振动,2015,35(1):44-49.Yin H F,Bo J Sh.Li P.Study on seismic responses of soft rock subgrade for a nuclear power plant[J].Earth? quake Engineering and Engineering Dynamics,2015,35(1):44-49.(in Chinese)
Standard Test Methods for the Determination of the Modulus and Damping Properties of Soils Using the Cy? clic Triaxial Apparatus:D3999—91[S].West Con? shohocken PA,USA:ASTM,2012.
李永强,景立平,梁海安,等.土体动剪切模量测定及非线性拟合方法研究[J].世界地震工程,2010,26(增):247-252.Li Y Q,Jing L P,Liang H A,et al.Testing and non? linear fitting of dynamic shear modulus of soil[J].World Earthquake Engineering,2010,26(Sup):247-252.(in Chinese)
Khan Z,Naggar M H EI,Cascante G.Frequency de? pendent dynamic properties from resonant column and cyclic triaxial tests[J].Journal of The Franklin Insti? tute,2011,348:1363-1376.
黄博,陈云敏,殷建华,等.粉土的动力特性及液化势研究[J].工程勘察,2001(2):7-9,17.Huang B,Chen Y M,Yin J H,et al.Research on dy? namic characteristics and liquefaction potential of silt [J].Geotechnical Investigation and Surveying,2001(2):7-9,17.(in Chinese)
Ishihara K,Yoshida N,Tsujino S.Modelling of stressstrain relations of soils in cyclic loading[C]∥Proceed? ings of International Conference on Numerical Methods in Geomechanics,Nagoya,Japan:[s.n.],1985:373-380.
Chen G X,Zhou Zh L,Pan H,et al.The influence ofundrained cyclic loading patterns and consolidation states on the deformation features of saturated fine sand over a wide strain range[J].Engineering Geology,2016,204:77-93.
Kondner R L.Hyperbolic stress strain response:cohe? sive soils[J].Journal of Soil Mechanics and Founda? tions,ASCE,1963,89(1):115-143.
Kondner R L,Zelasko J S.A hyperbolic stress-strain formulation of sands[C]∥ Proceedings of the 2nd PanAmerican Conference on Soil Mechanics and Founda? tion Engineering,Silo Paulo,Brazil:Brazilian Associa? tion of Soil Mechanics,1963:289-324.
Hardin B O,Drnevich V P.Shear Modulus and damp? ing in soils[J].Journal of Soil Mechanics and Founda? tions,ASCE,1972,98(7):667-692.
Ishihara K,Yoshida N,Tsujino S.Modelling of stressstrain relations of soils in cyclic loading[C]//Interna? tional Conference on Numerical Methods in Geome? chanics 1985:373-380.
Seed H B,Wong R T,Idriss I M,et al.Moduli and damping factors for dynamic analyses of cohesionless soils[J].Journal of Geotechnical Engineering,ASCE,1986,112(11):1016–1032.
Rollins K M,Evans M D,Diehl N B,et al.Shear modulus and damping relationships for gravels[J].Jour? nal of Geotechnical and Geoenvironmental Engineering,ASCE,1998,124(5):396-405.
Vucetic M,Dobry R.Effect of soil plasticity on cyclic response [J].Journal of Geotechnical Engineering,ASCE,1991,117(1):89-107.
Electric Power Research Institute.Guidelines for deter? mining design basis ground motions[R].Palo Alto CA,USA:EPRI,1993.
Zhang J F,Andrus R D,Juang C H.Normalized shear modulus and material damping ratio relationships[J].Journal of Geotechnical and Geoenvironmental Engi? neering,ASCE,2005,131(4):453-464.
Chen G X,Liu X Zh.The preliminary study on dynam? ic characteristics of deposited soils in southern area of Ji? angsu province,China[C]∥ Proceedings of the Interna? tional Symposium on Innovation and Sustainability of Structures in Civil Engineering,Nanjing,China:Southeast University Presss,2005.
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