# [1]施建勇,雷国辉,宋雄伟,等.初始应力各向异性的边界面方程[J].东南大学学报(自然科学版),2004,34(3):379-381.[doi:10.3969/j.issn.1001-0505.2004.03.022] 　Shi Jianyong,Lei Guohui,Song Xiongwei,et al.Bounding surface equation of initial stress anisotropy[J].Journal of Southeast University (Natural Science Edition),2004,34(3):379-381.[doi:10.3969/j.issn.1001-0505.2004.03.022] 点击复制 初始应力各向异性的边界面方程() 分享到： var jiathis_config = { data_track_clickback: true };

34

2004年第3期

379-381

2004-05-20

## 文章信息/Info

Title:
Bounding surface equation of initial stress anisotropy

Author(s):
Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China

Keywords:

TU4
DOI:
10.3969/j.issn.1001-0505.2004.03.022

Abstract:
Since the initial stress state in a soil is non-symmetrical, the shape of the bounding surface of the soil is not symmetrical about the axis of the mean normal stress in p-q space, unlike that in the Cam-clay model. The plastic works induced respectively by the volumetric and deviatoric(frictional)deformations are defined in this paper. A weighted coefficient C is introduced to derive the bounding surface equation of the soil under non-symmetrical initial stress condition, based on the equilibrium equation of plastic energy. By comparing the calculated results with the experimental results, it has been found that friction and volumetric plastic work are the main theme in contraction and extension of the soil respectively. Suggestions for determining the weighted coefficient are also proposed.

## 参考文献/References:

[1] Smith P R,Jardine R J,Hight D W.The yielding of Bothkennar clay [J]. Geotechnique, 1992,42(2):257-274.
[2] Hight D W,Boese R,Butcher A P,et al.Disturbance of the Bothkennar clay prior to laboratory testing [J]. Geotechnique, 1992,42(2):199-217.
[3] Wong P K K,Mitchell R J.Yielding and plastic flow of sensitive cemented clay [J].Geotechnique, 1975,25(4):763-782.
[4] Atkinson J H,Richardson D,Robinson P J.Compression and extension of K00 normally consolidated kaolin clay [J]. Journal of Geotechnical Engineering, 1986,113(12):1468-1481.
[5] 孙德安,姚仰平,殷宗泽.初始应力各向异性土的弹塑性模型 [J].岩土力学,2000,21(3):222-226.
Sun Dean,Yao Yangping,Yin Zongze.An elasto-plastic model for soil with initially stress-induced anisotropy [J]. Rock and Soil Mechanics, 2000,21(3):222-226.(in Chinese)
[6] 施建勇,赵维炳,Lee Fouk-hou,等.软粘土各向异性和小应变条件下的本构模型 [J].岩土力学,2000,21(3):209-212.
Shi Jianyong,Zhao Weibing,Lee Fouk-hou,et al.A constitutive model for anisotropic and small-strain behaviour of soft clay [J]. Rock and Soil Mechanics,2000,21(3):209-212.(in Chinese)

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