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Volume 43 Issue S2
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WANG Jing-zhou, DING Xuan-ming, JIANG Chun-yong, FANG Hua-qiang. Laboratory tests on vacuum preloading and electro-osmotic consolidation of calcareous soft soil[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S2): 36-40. DOI: 10.11779/CJGE2021S2009
Citation: WANG Jing-zhou, DING Xuan-ming, JIANG Chun-yong, FANG Hua-qiang. Laboratory tests on vacuum preloading and electro-osmotic consolidation of calcareous soft soil[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S2): 36-40. DOI: 10.11779/CJGE2021S2009
shu

Laboratory tests on vacuum preloading and electro-osmotic consolidation of calcareous soft soil

  • 1.

    College of Civil Engineering, Chongqing University, Chongqing 400045, China

  • 2.

    Key Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University, Chongqing 400045, China

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  • Received Date: August 16, 2021
  • Available Online: December 05, 2022
    Graphical Abstract
    • Abstract
  • The calcareous soft soil mainly with fine particle content is distributed in the South China Sea and countries along the the Belt and Road. How to drain and consolidate is a subject worthy of study. Taking the remolded calcareous soft soil as the research object, the vacuum preloading and electro-osmotic consolidation tests are carried out with electro-kinetic geosynthetic (EKG) electrode. The apparent phenomena of the tests, the relationship between drainage and water content of soil, the relationship between current and ions during the electro-osmotic consolidation tests and the one-dimensional compression characteristics of soil samples after vacuum preloading are obtained. The applicability of the two reinforcement methods in drainage consolidation of the calcareous soft soil is discussed. The results show that compared with the electro-osmotic consolidation, the vacuum preloading consolidation is a drainage consolidation method with high efficiency, uniform treatment effect and significantly improved bearing capacity of the calcareous soft soil after treatment.
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    • References (11)
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