吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (3): 661-667.doi: 10.13229/j.cnki.jdxbgxb201403013

• Orignal Article • Previous Articles     Next Articles

Experiment on mechanical properties of stabilized soft dredger fill

YANG Ai-wu1,2,ZHOU Jin3,KONG Ling-wei1   

  1. 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071,China;
    2.Key Laboratory of Soft Soil Engineering Character and Engineering Environment of Tianjin,Tianjin Chengjian University ,Tianjin 300381, China;
    3.CCCC Fourth Harbor Engineering Institute Co.,Ltd, Guangzhou 510230,China
  • Received:2012-12-05 Online:2014-03-01 Published:2014-03-01

Abstract: The mechanical characteristic of the soft dredger fill, which is stabilized by the CJDS07 agent, is studied in Tianjin new area. The results show that the compression modulus, shear strength and structure of the stabilized soft dredger fill increase with the curing age. The stabilized soil gradually changes from high compressibility to middle compressibility. The stress and strain relationship of the stabilized soil is highly influenced by the confining pressure, that when the confining pressure is smaller than a certain value, the relationship is tend to be strain softening, otherwise, it is strain hardening. Based on the above research results and Dun-Chang model, the stress-strain relationship model suitable for the stabilized dredger fill is established.

Key words: civil construction engineering, solidified soil, compression characteristic, shear strength characteristic, stress-strain relationship

CLC Number: 

  • TU472
[1] 杜东菊,杨爱武,刘举,等. 天津滨海吹填土[M]. 北京:科学出版社,2010.
[2] Kaniraj S R, Havanagi V G. Compressive strength of cement stabilized fly ash-soil mixtures[J]. Cement and Concrete Research, 1999, 29(5): 673-677.
[3] 汤怡新,刘汉龙,朱伟. 水泥固化土工程特性试验研究[J]. 岩土工程学报,2000,22(5):549-554.
Tang Yi-xin, Liu Han-long, Zhu Wei. Study on engineering properties of cement-stabilized soil[J]. Chinese Jounal of Geotechnical Engineering, 2000,22(5):549-554.
[4] 徐日庆,郭印,刘增永. 人工制备有机质固化土力学特性试验研究[J]. 浙江大学学报:工学版,2007,41(1):109-113.
Xu Ri-qing, Guo Yin, Liu Zeng-yong. Experimental study on mechanical properties of stabilized artificial organic soil[J]. Journal of Zhejiang University(Engineering Science), 2007,41(1):109-113.
[5] 刘焕存. 夯实水泥土变形特性试验研究[J]. 岩土工程技术,1997(1):19-24.
Liu Huan-cun. Studies on the tests of the deformation properties of compacted soil-cement[J]. Geotechnical Engineering Technique, 1997(1):19-24.
[6] 梁仁旺,张明,白晓红. 水泥土的力学性能试验研究[J]. 岩土力学,2001,22(2):211-213.
Liang Ren-wang, Zhang Ming, Bai Xiao-hong. Analysis of laboratory test results of cemented soil[J]. Rock and Soil Mechanics, 2001,22(2):211-213.
[7] 李建军,梁仁旺. 水泥土抗压强度和变形模量试验研究[J]. 岩土力学,2009,30(2):473-477.
Li Jian-jun, Liang Ren-wang.Research on compression strength and modulus of deformation of cemented soil[J]. Rock and Soil Mechanics, 2009,30(2):473-477.
[8] 童小东,龚晓楠,蒋永生. 水泥土的弹塑性损伤试验研究[J]. 土木工程学报,2002,35(4):82-85.
Tong Xiao-dong, Gong Xiao-nan, Jiang Yong-sheng. Experimental study on elasto plastic damage of cemented soil[J]. China Civil Engineering Journal,2002,35(4):82-85.
[9] 王军, 丁光亚, 潘林有, 等. 静三轴试验中水泥土力学特性及本构模型研究[J]. 岩土力学, 2010,31(5):1407-1412.
Wang Jun, Ding Guang-ya, Pan Lin-you, et al. Study of mechanics behavior and constitutive model of cemented soil under static triaxial tests[J]. Rock and Soil Mechanics, 2010, 31(5):1407-1412.
[10] Duncan J M, Chang C Y. Nonlinear analysis of stress and strain in soils[J]. Journal of the Soil Mechanics and Foundations Division, 1970, 96(5):1629-1653.
[11] 方安平,叶卫平. origin 8.0实用指南[M].北京:机械工业出版社,2010.
[1] WANG Teng, ZHOU Ming-ru, MA Lian-sheng, QIAO Hong-xia. Fracture grouting crack growth of collapsible loess based on fracture theory [J]. 吉林大学学报(工学版), 2017, 47(5): 1472-1481.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!