• 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引(EI)收录期刊
  • Scopus数据库收录期刊
SHEN Yang, LI Hai-long, FEI Zhong-qiu, LIU Han-long. Secondary consolidation properties of dredger fill with over liquid limit at primary consolidation stage[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 522-527.
Citation: SHEN Yang, LI Hai-long, FEI Zhong-qiu, LIU Han-long. Secondary consolidation properties of dredger fill with over liquid limit at primary consolidation stage[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 522-527.

Secondary consolidation properties of dredger fill with over liquid limit at primary consolidation stage

More Information
  • Received Date: July 16, 2013
  • Published Date: November 24, 2013
  • One-dimensional consolidation experiments are performed to study the secondary consolidation properties of remolded dredger soft soils from Wenzhou. The results show that the secondary consolidation occurs at the primary stage, and is influenced by both effective stress and pore pressure potential. When the moisture content is rather low, the former is the dominatant element, However, when the moisture content is much higher than the liquid limit, the latter is the dominatant element. The development of the secondary consolidation promoted by high pore pressure is further verified through the consolidation tests with different back pressure levels. Therefore, the secondary consolidation has different influences on the evolution of pore pressure and deformation. It causes the distinction between the consolidation degrees of pore pressure and deformation, as well as the compressive modulus changing with the effective stress.
  • [1]
    余湘娟, 殷宗泽, 董卫军. 荷载对软土次固结影响的试验研究[J].岩土工程学报, 2007, 29(6): 913-916. (YU Xiang-juan, YIN Zong-ze, DONG Wei-jun. Influence of load on secondary consolidation deformation of soft soils[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(6): 913-916. (in Chinese))
    [2]
    廖红建, 苏立君, 白子博明, 等. 次固结沉降对压缩时间曲线的影响研究[J]. 岩土力学, 2002, 23(5): 536-540. (LIAO Hong-jian, SU Li-jun, SHIRAKO Hiroaki, et al. Research on influence of secondary consolidation on compression time curve[J]. Rock and Soil Mechanics, 2002, 23(5): 536-540. (in Chinese))
    [3]
    陈晓平, 周秋娟, 朱鸿鹄, 等. 软土蠕变固结特性研究[J].岩土力学, 2007, 28(增刊): 1-10. (CHEN Xiao-ping, ZHOU Qiu-juan, ZHU Hong-hu, et al. Research on creep and consolidation characteristics of soft soil[J].Rock and Soil Mechanics, 2007, 28(S0): 1-10. (in Chinese))
    [4]
    MESRI G, AJLOUNI M A, FENG T W, et al. Surcharging of soft ground to reduce secondary settlement[C]// LEE C C, LAU C K, NG C W W, et al. Proc 3rd Int Conf on Soft Soil Engineering. Hong Kong: Balkema, 2001: 55-65.
    [5]
    MESRI G, STARK T D, AJLOUNI M A, et al. Secondary compression of peat with or without surcharging[J]. Geotechnical Engineering, ASCE, 1997, 123(5): 411-421.
    [6]
    MITCHELL J K. Fundamentals of soil behavior[M]. New York: Wiley, 1976.
    [7]
    BURLAND J B. On the compressibility and shear strength of natural clay[J]. Géotechnique, 1990, 40(3): 329-378.
    [8]
    殷宗泽, 张海波, 朱俊高, 等. 软土的次固结[J]. 岩土工程学报, 2003, 25(5): 521-526. (YIN Zong-ze, ZHANG Hai-bo, ZHU Jun-gao, et al. Secondary consolidation of soft soils[J]. Chinese Journal of Geotechnical Engineering, 2003, 25(5): 521-526. (in Chinese))
    [9]
    冯志刚, 朱俊高. 软土次固结变形特性试验研究[J].水利学报, 2009, 40(5): 583-588. (FENG Zhi-gang, ZHU Jun-gao. Experimental study on secondary consolidation behavior of soft soils[J]. Journal of Hydraulic Engineering, 2009, 40(5): 583-58. (in Chinese))
    [10]
    WAHLS H E, Analysis of primary and secondary consolidation[J]. Discussions, 1962, ASCE, 88(SM6) : 207-231.
    [11]
    ROBINSON R G. A Study on the beginning of Secondary Compression of soils[J]. Journal of Testing and Evaluation, 2003, 31(5): 388-397.

Catalog

    Article views (260) PDF downloads (397) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return