考虑饱和黏土初始各向异性的循环边界面塑性模型
A cyclic bounding surface plasticity model for saturated clay with initial anisotropy
查看参考文献26篇
|
文摘
|
天然土体的初始各向异性通常可对其后继循环特性产生显著影响。现有考虑循环载荷作用的土体弹塑性模型,往往采用类似修正剑桥模型的椭圆形屈服面,已有研究表明,该椭圆形屈服面因其拉伸弹性区域偏大,针对天然 K_0_固结状态的土体,其计算精度较差。基于新近提出的广义各向同性硬化准则,在边界面方程中引入初始各向异性张量,并采用空间滑动面破坏准则(SMP)的变换应力法,建立了能考虑饱和黏土初始各向异性的循环边界面塑性模型。分别针对等压和偏压固结的饱和黏土静、动三轴试验进行模拟,结果表明,该模型能合理反映土体的初始各向异性及其后继循环动力特性。 |
|
其他语种文摘
|
The initial anisotropy of natural soft clay tends to have a significant influence on its subsequent cyclic behaviors. The current elastoplastic constitutive models for cyclic behaviors of saturated clay always adopt an elliptic yield surface similar to the one in the modified Cam-clay model. However, studies have demonstrated that these kinds of models which adopt an elliptic yield surface are not suitable for predicting the characteristics of K_0-consolidated soils under the extension state, due to its over-predicted elastic region. In this paper, within the framework of the generalized isotropic hardening rule, by introducing the initial anisotropic tensor to the formation of the bounding surface and combining with the transformed stress tensors which are based on the spatially mobilized plane (SMP) yield criterion, a new bounding surface plasticity model for saturated clay with initial anisotropy is proposed. The predicted results by the model for the monotonic and cyclic triaxial tests on both isotropically and anisotropically consolidated clays demonstrate that the bounding surface model can reasonably describe the initial anisotropy and the subsequent cyclic behaviors of saturated clay. |
|
来源
|
岩土力学
,2014,35(10):2807-2814,2830 【核心库】
|
|
关键词
|
边界面塑性模型
;
初始各向异性
;
变换应力法
;
循环载荷
;
饱和黏土
|
|
地址
|
1.
中国科学院力学研究所, 北京, 100190
2.
天津大学建筑工程学院, 天津, 300072
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-7598 |
|
学科
|
建筑科学 |
|
基金
|
国家自然科学基金
;
国家自然科学基金
|
|
文献收藏号
|
CSCD:5261927
|
参考文献 共
26
共2页
|
|
1.
Anderson K H. Cyclic and static laboratory tests on Drammen clay.
Journal of the Geotechnical Engineering Division,1980,106(5):499-529
|
CSCD被引
43
次
|
|
|
|
|
2.
Byrne B W. Experimental investigations of response of suction caissons to transient vertical loading.
Journal of Geotechnical and Environmental Engineering,2002,128(11):926-939
|
CSCD被引
13
次
|
|
|
|
|
3.
Byrne B W. Experimental investigations of response of suction caissons to transient combine loading.
Journal of Geotechnical and Geoenvironmental Engineering,2004,130(3):240-253
|
CSCD被引
21
次
|
|
|
|
|
4.
Hyodo M. Undrained cyclic shear behaviour of normally consolidated clay subjected to initial static shear stress.
Soils and Foundations,1994,34(4):1-11
|
CSCD被引
21
次
|
|
|
|
|
5.
Moses G G. Behavior of marine clay subjected to cyclic loading with sustained shear stress.
Marine Georesources Geotechnology,2007,25:81-96
|
CSCD被引
3
次
|
|
|
|
|
6.
Li S. Undrained long-term cyclic degradation characteristics of offshore soft clay.
Soil Dynamics and Earthquake Engineering, 2010, Jun 3-5;Shang Hai, China,2010:263-271
|
CSCD被引
1
次
|
|
|
|
|
7.
Cater J P. A critical state soil model for cyclic loading.
Soil Mechanics-Transient and Cyclic Loads,1982:219-252
|
CSCD被引
2
次
|
|
|
|
|
8.
Li T. Two-surface plasticity model for cyclic undrained behavior of clays.
Journal of Geotechnical and Geoenvironmental Engineering,2002,128(7):613-626
|
CSCD被引
31
次
|
|
|
|
|
9.
Yu H S. A unified plasticity model for cyclic behavior of clay and sand.
Mechanics Research Communications,2007,34:97-114
|
CSCD被引
13
次
|
|
|
|
|
10.
胡存. 适用于饱和黏土循环动力分析的新型边界面塑性模型.
水利学报,2011,42(10):1192-1200
|
CSCD被引
8
次
|
|
|
|
|
11.
Matsuoka H. The Cam-clay models revised by the SMP criterion.
Soils and Foundations,1999,39(1):81-95
|
CSCD被引
106
次
|
|
|
|
|
12.
孙德安. 基于SMP准则的双屈服面弹塑性模型的三维化.
岩土工程学报,1999,21(5):631-634
|
CSCD被引
12
次
|
|
|
|
|
13.
孙德安. 初始应力各向异性土的弹塑性模型.
岩土力学,2000,21(3):221-226
|
CSCD被引
2
次
|
|
|
|
|
14.
韩国城. 一个适用于深基坑开挖的三维各向异性模型.
水利学报,2002,33(11):14-19
|
CSCD被引
5
次
|
|
|
|
|
15.
王乃东. 基于变换应力方法的各向异性模型三维化.
岩土工程学报,2011,33(1):50-56
|
CSCD被引
11
次
|
|
|
|
|
16.
Sekiguchi H. Induced anisotropy and time dependency in clay.
Proceedings of Specialty session 9th International Conference on Soil Mechanics and Foundation Engineering,1977:229-238
|
CSCD被引
2
次
|
|
|
|
|
17.
皱博. 变换应力三维化方法在清华模型中的应用.
岩石力学与工程学报,2005,24(23):4303-4307
|
CSCD被引
1
次
|
|
|
|
|
18.
Yao Y P. UH model: Three dimensional unified hardening model for overconsolidated clays.
Geotechnique,2007:1-19
|
CSCD被引
1
次
|
|
|
|
|
19.
胡存. 考虑循环载荷下饱和黏土软化的损伤边界面模型研究.
岩土力学,2012,33(2):459-466
|
CSCD被引
6
次
|
|
|
|
|
20.
Yao Y P. Application of Lade's criterion to Cam-clay model.
Journal of Engineering Mechanics,2000,126(1):112-119
|
CSCD被引
60
次
|
|
|
|
|
了解气象卫星更多信息，请访问