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Volume 43 Issue S2
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LEI Hua-yang, LIU Xu, SHI Fu-shuo, XU Ying-gang. Proportional optimization of polymer-modified bentonite slurry in pipe jacking[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S2): 51-55. DOI: 10.11779/CJGE2021S2012
Citation: LEI Hua-yang, LIU Xu, SHI Fu-shuo, XU Ying-gang. Proportional optimization of polymer-modified bentonite slurry in pipe jacking[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S2): 51-55. DOI: 10.11779/CJGE2021S2012
shu

Proportional optimization of polymer-modified bentonite slurry in pipe jacking

  • 1.

    School of Civil Engineering, Tianjin University, Tianjin 300350, China

  • 2.

    Key Laboratory of Coast Civil Structure Safety of Ministry of Education, Tianjin University, Tianjin 300350, China

  • 3.

    Key Laboratory of Earthquake Engineering Simulation and Seismic Resilience of China Earthquake Administration, Tianjin University, Tianjin 300350, China

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  • Received Date: August 18, 2021
  • Available Online: December 05, 2022
    Graphical Abstract
    • Abstract
  • The polymer-modified bentonite slurry has good rheological and thixotropic properties, which can adequately perform its functions of lubrication and support in pipe jacking construction. Therefore, it is widely used in construction due to its high efficiency. For different construction environments and geological conditions, it is difficult to form a unified slurry proportioning. Based on the requirements of slurry characteristics, the effects of sodium carboxymethyl cellulose (CMC), polyacrylamide (PAM) and guar gum on slurry characteristics are investigated. Within the suitable range of funnel viscosity and filtration loss, the prediction formula is proposed, and the correlation analysis is conducted, which can provide a reference for the preparation of slurry proportioning in engineering applications.
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    • References (14)
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