饱和黏土静力及循环稳定弹塑性分析

doi:10.13722/j.cnki.jrme.2017.0483

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Abstract

In order to evaluate the stability of clay foundation under the structural weight，wind and wave loading， an kinematic hardening elastoplastic model is modified in the framework of critical state theory，and the mechanical behaviors of saturated clay are simulated under static and cyclic loading. In the present work，the hardening rule of the existing model is modified to characterize the undrained response of saturated clay under not only static but also cyclic loading. Similar to the yield surface equation of modified Cambridge model，a new bounding surface equation is established according to the isotropic and kinematic hardening rule. The radial mapping law and moving mapping center are adopted to simulate the hysteresis of stress-strain curves，and a plastic modulus interpolation function is suggested for predicting the cyclic shakedown behavior of saturated clay under low stress levels. The validity of the modified model is verified through both the undrained monotonic and cyclic triaxial test data，and the results show that the modified model can realistically simulate the static and cyclic shakedown behaviors of saturated clay.

Key words： soil mechanics static loading cyclic loading kinematic hardening rule cyclic shakedown clay

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	YAO Haihui1
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	WANG Jianhua1
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Cite this article:

YAO Haihui1,2,WANG Jianhua1, et al. Elastoplastic analysis for static and cyclic shakedown behaviors of saturated clay[J]. , 2017, 36(S2): 4251-4258.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2017.0483 OR https://rockmech.whrsm.ac.cn/EN/Y2017/V36/IS2/4251

[1]	ROSCOE K H，BURLAND J B. On generalized stress-strain behavior of wet clay[M]. London：Cambrige University Press，1968：535-609.
[2]	PRASAD Y V S N，RAO S N. Experimental studies on foundations of compliant structures-II under cyclic loading[J]. Ocean Engineering，1994，21(1)：15-27.
[3]	MCMANUS K J，KULHAWY F H. Cyclic axial loading of drilled shafts in cohesive soil [J]. Journal of Geotechnical Engineering，1994，120(9)：1481-1497.
[4]	WANG J H，YANG H M. Model tests and numerical simulation on bearing capacity of bucket foundations in soft clay under vertical static and cyclic loads[C]//The 17th International Offshore and Polar Engineering Conference. California：ISOPE，2007：1 547-1558.
[5]	MROZ Z. On the description of anisotropic workhardening[J]. Journal of the Mechanics and Physics of Solids，1967，15(3)：163-175.
[6]	MROZ Z，NORRIS V A，ZIENKIEWICZ O C. An anisotropic hardening model for soils and its application to cyclic loading[J]. International Journal for Numerical and Analytical Methods in Geomechanics，1978，2(3)：203-221.
[7]	PREVOST J H. Mathematical modelling of monotonic and cyclic undrained clay behavior[J]. International Journal for Numerical and Analytical Methods in Geomechanics，2010，1(2)：195-216.
[8]	PREVOST J H. Anisotropic undrained stress-strain behavior of clays[J]. Journal of the Geotechnical Engineering Division，1978，104(8)：1075-1090.
[9]	DAFALIAS Y F，HERRMANN L R. Bounding surface formulation of soil plasticity[C]//PANDE G N，ZIENKIEWICZ O C. Soil Mechanics-Transient and Cyclic Loads. Chichester：John Willey andSons，1982：253-282.
[10]	BANERJEEP K，YOUSIF N B. A plasticity model for the mechanical behaviour of Anisotropically consolidated clay[J]. International Journal for Numerical andAnalytical Methods in Geomechanics，1986，10(5)：521-541.
[11]	LIANG R. Y，MA F. Anisotropic plasticity model for undrained cyclic behavior of clays. I：theory[J]. Journal of Geotechnical Engineering，1992，118(2)：229-245.
[12]	LIANG R Y，MA F. Anisotropic plasticity model for undrained cyclic behavior of clays. II：verification[J]. Journal of Geotechnical Engineering，1992，118(2)：246-265.
[13]	SEIDALINOV G，TAIEBAT M. Bounding surface Saniclay plasticity for cyclic clay behavior[J]. International Journal for Numerical and Analytical Methods in Geomechanics，2014，38(7)：702-724.
[14]	黄茂松，刘明，柳艳华. 循环荷载下软黏土的各向异性边界面模型[J]. 水利学报，2009，40(2)：188-193.(HUANG Maosong，LIU Ming，LIU Yanhua. Anisotropic bounding surface model for saturated soft clay under cyclic loading[J]. Journal of Hydraulic Engineering，2009，40(2)：188-193.(in Chinese))
[15]	LI T，MEISSNER H. Two-surface plasticity model for cyclic undrained behavior of clays[J]. Journal of Geotechnical and Geoenvironmental Engineering，2002，128(7)：613-626.
[16]	胡存，刘海笑. 适用于饱和黏土循环动力分析的新型边界面塑性模型[J]. 水利学报，2011，42(10)：1192-1200.(HU Cun，LIU Haixiao. A new type of bounding surface plasticity model for cyclic behavior of saturated clay[J]. Journal of Hydraulic Engineering，2011，42(10)：1192-1200.(in Chinese))
[17]	HU C，LIU H X，HUANG W. Anisotropic bounding-surface plasticity model for the cyclic shakedown and degradation of saturated clay[J]. Computers and Geotechnics，2012，44(3)：34-47.
[18]	JIANG W. New kinematic hardening model[J]. Journal of Engineering Mechanics，1994，120(10)：2201-2222.
[19]	DAFALIAS Y F. The concept and application of the bounding surface in plasticity theory[M]. Springer Berlin Heidelberg：Physical Non-linearities in Structural Analysis，1981：56-63.
[20]	DAFALIAS Y F，HERRMANN L R. Bounding surface plasticity. ii：application to isotropic cohesive soil[J]. Journal of Engineering Mechanics，1986，112(12)：1263-1291.
[21]	BANERJEE P K，STIPHO A S. Associated and non-associated constitutive relations for undrained behaviour of isotropic soft clays[J]. International Journal for Numerical and Analytical Methods in Geomechanics，1978，2(1)：35-56.
[22]	SANGREY D A，HENKEL D J，ESRIG M I. The effective stress response of a saturated clay soil to repeated loading[J].Journal of Canada Geotechnical，1969，6(3)：241-252.