Journal of Shanghai Jiao Tong University

Journal of Shanghai Jiaotong University >

2020 , Vol. 54 >Issue 8: 866 - 872

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2019.106

Equation for Soil Shrinkage Curve of Clay Considering Soil-Water Adsorption Effect

Expand
  • 1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
    2. China Communications Urban and Rural Construction Planning and Design Research Institute Co., Ltd., Wuhan 430052, China
    3. Guilin University of Technology, Guilin 541004, Guangxi, China

Received date: 2019-01-04

  Online published: 2020-08-18

Fold

Abstract

Soil shrinkage occurs with the decrease of water content in soils under dry conditions, which has a great influence on soil cracking, bearing capacity, and slope stability. Hence, it is important to predict soil shrinkage effectively under the change of water content in soils. A novel mathematical equation is proposed for describing the soil shrinkage behavior within the full water content range considering the soil-water adsorption effect. The proposed equation can be used to characterize the soil shrinkage behavior of structural and non-structural clayey soils under dry conditions. An additional parameter is introduced into the proposed equation for characterizing the slope of soil shrinkage in low water content ranges, in which the effect of soil-water adsorption is considered. Only one equation is needed to predict the complete shrinkage behavior from saturated to zero water content conditions, especially for describing the volume change of soils under low water content. The proposed equation has been validated by comparing the results between the predicted curves using the proposed model and the measured data in literatures. Comparing with existing equations for soil shrinkage curve, the results show that the proposed equation can describe the non-zero shrinkage and non-zero shrinkage slope behaviors very well under low water content conditions. Furthermore, the results show that the soil-water adsorption effect is important and necessary for prediction of soil shrinkage behavior under low water content conditions.

Key words： soil shrinkage; volume change; dry conditions; shrinkage slope; unsaturated soil; structural clay

Cite this article

CHEN Pan, XIANG Rui, WEI Xiaoqi, WEI Changfu, WANG Jili . Equation for Soil Shrinkage Curve of Clay Considering Soil-Water Adsorption Effect[J]. Journal of Shanghai Jiaotong University, 2020 , 54(8) : 866 -872 . DOI: 10.16183/j.cnki.jsjtu.2019.106

References

[1] HAINES W B. The volume-changes associated with variations of water content in soil[J]. The Journal of Agricultural Science, 1923,13(3):296-310.
[2] 唐朝生, 崔玉军, TANG Anh-Minh, 等. 土体干燥过程中的体积收缩变形特征[J]. 岩土工程学报, 2011,33(8):1271-1279.
[2] TANG Chaosheng, CUI Yujun, TANG Anh-Minh, et al. Volumetric shrinkage characteristics of soil during drying[J]. Chinese Journal of Geotechnical Engineering, 2011,33(8):1271-1279.
[3] 张校通, 郑东生, 夏小和, 等. 非均质饱和-非饱和土的变形特性[J]. 上海交通大学学报, 2012,46(10):1544-1547.
[3] ZHANG Xiaotong, ZHENG Dongsheng, XIA Xiaohe, et al. Deformation characteristics of non-homogeneously saturated-unsaturated soils[J]. Journal of Shanghai Jiao Tong University, 2012,46(10):1544-1547.
[4] 程演, 张璐璐, 张磊, 等. 基于随机场的非饱和土固结分析[J]. 上海交通大学学报, 2014,48(11):1528-1535.
[4] CHENG Yan, ZHANG Lulu, ZHANG Lei, et al. Coupled consolidation in unsaturated soils based on random field theory[J]. Journal of Shanghai Jiao Tong University, 2014,48(11):1528-1535.
[5] 刘平, 张虎元, 严耿升, 等. 土建筑遗址表部土体收缩特征曲线测定[J]. 岩石力学与工程学报, 2010,29(4):842-849.
[5] LIU Ping, ZHANG Huyuan, YAN Gengsheng, et al. Determination of soil shrinkage characteristic curve of surface soil on ancient earthen architectures[J]. Chinese Journal of Rock Mechanics and Engineering, 2010,29(4):842-849.
[6] 汪贤恩, 谭晓慧, 辛志宇, 等. 膨胀土收缩性质的试验研究[J]. 岩土工程学报, 2015,37(Sup.2):107-114.
[6] WANG Xianen, TAN Xiaohui, XIN Zhiyu, et al. Experimental study on shrinkage properties of expansive soils[J]. Journal of Geotechnical Engineering, 2015,37(Sup.2):107-114.
[7] LIU X F, BUZZI O. Use of hand-spray plaster as a coating for soil bulk volume measurement[J]. Geotechnical Testing Journal, 2014,37(3):522-528.
[8] SRIDHARAN A, RAO G V. Effective stress theory of shrinkage phenomena[J]. Canadian Geotechnical Journal, 1971,8(4):503-513.
[9] 唐朝生, 施斌, 崔玉军. 土体干缩裂隙的形成发育过程及机理[J]. 岩土工程学报, 2018,40(8):1415-1423.
[9] TANG Chaosheng, SHI Bin, CUI Yujun. Behaviors and mechanisms of desiccation cracking of soils[J]. Journal of Geotechnical Engineering, 2018,40(8):1415-1423.
[10] BRAUDEAU E, COSTANTINI J M, BELLIER G, et al. New device and method for soil shrinkage curve measurement and characterization[J]. Soil Science Society American Journal, 1999,63:525-535.
[11] CORNELIS W M, CORLUY J, MEDINA H, et al. Measuring and modelling the soil shrinkage characteristic curve[J]. Geoderma, 2006,137(1/2):179-191.
[12] 邢旭光, 马孝义, 康端刚. 盐阳离子类型及浓度对土壤持水及干缩开裂的作用效果[J]. 农业工程学报, 2016,32(9):115-122.
[12] XING Xuguang, MA Xiaoyi, KANG Duangang. Impacts of type and concentration of salt cations on soil water retention and desiccation cracking[J]. Transactions of the Chinese Society of Agricultural Engineering, 2016,32(9):115-122.
[13] LEONG E C, WIJAYA M. Universal soil shrinkage curve equation[J]. Geoderma, 2015,237:78-87.
[14] FREDLUND M D, WILSON G W, FREDLUND D G. Representation and estimation of the shrinkage curve[C]//Proceedings of the Third International Conference on Unsaturated Soils. Florida: CRC Press, 2002: 145-149.
[15] PENG X, HORN R. Modeling soil shrinkage curve across a wide range of soil types[J]. Soil Science Society America Journal, 2005,69:584-592.
[16] BOIVIN P, GARNIER P, VAUCLIN M. Modeling the soil shrinkage and water retention curves with the same equations[J]. Soil Science Society American Journal, 2006,70(4):1082-1093.
[17] 戴明月, 陈勇, 王智炜. 不同初始状态下膨胀土体收缩变形拟合模型[J]. 人民长江, 2018,49(8):83-87.
[17] DAI Mingyue, CHEN Yong, WANG Zhiwei. A fitting model for shrinkage of expansive soil in different initial states[J]. Yangtze River, 2018,49(8):83-87.
[18] OLSEN P A, HAUGEN L E. A new model of the shrinkage characteristic applied to some Norwegian soils[J]. Geoderma, 1998,83:67-81.
[19] LU N, DONG Y. Correlation between soil shrinkage curve and water-retention characteristics[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2017,143(9):04017054.
[20] CHEN P, LU N. Generalized equation for soil shrinkage curve[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2018,144(8):04018046.
[21] MARINHO F A. Fundamentals of soil shrinkage[C]// Second Pan American Conference on Unsaturated Soils Conference Proceedings. Virginia: ASCE Press U.S., 2017: 198-222.
[22] THYAGARAJ T, THOMAS S R, DAS A P. Physico-chemical effects on shrinkage behavior of compacted expansive clay[J]. International Journal of Geomechanics, 2017,17(2):06016013.
Options
Outlines

/

〈 〉