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Volume 35 Issue zk2
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DING Jian-wen, LIU Tie-ping, CAO Yu-peng, YANG Rui-min, WANG Gang. Unconfined compression tests and strength prediction method for solidified soils of dredged clays with high water content[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 55-60.
Citation: DING Jian-wen, LIU Tie-ping, CAO Yu-peng, YANG Rui-min, WANG Gang. Unconfined compression tests and strength prediction method for solidified soils of dredged clays with high water content[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 55-60.
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Unconfined compression tests and strength prediction method for solidified soils of dredged clays with high water content

  • 1. Institute of Geotechnical Engineering, School of Transportation, Southeast University, Nanjing 210096, China; 2. Institute of Engineering Investigation and Design of Liaoning Province, Jinzhou 121000, China

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  • Received Date: August 07, 2013
  • Published Date: November 24, 2013
    Graphical Abstract
    • Abstract
  • A consideriable amount of dredged clays are inevitably produced during dredging of rivers and lakes and construction of ports. A number of unconfined compression tests on solidified soils are performed in connection with the flow-solidification method for dredged clays at high water content. The main influence factors and variation laws of the unconfined compressive strength are analyzed through a lot of laboratory tests. Three types of failure modes of the treated soils are summarized, and the mechanism of an optimum addition content of phosphogypsum as an industrial waste for solidifying treatment is studied. Both the addition content of solidification agent and the initial water content of dredged clays approximately have linear relationship with the unconfined compressive strength of the treated soils, and the relationship between strength and aging exhibits a logarithmic increasing law. Based on the laws derived from laboratory tests, the quantitative relationship between the strength at different ages and the strength at 28 days is established. Finally, a prediction method for the unconfined compressive strength is proposed for the solidified soils of dredged clays with high water content. It is useful for predicting strength of solidified soils from dredged clays in engineering applications.
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    • References (15)
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