Soil Engineering and Foundation

Soil Engineering and Foundation ›› 2023, Vol. 37 ›› Issue (2): 311-314.

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Laboratory Model Test Study of Side Friction Reduction Material for Concrete-Soil Interface

RAO Weisheng1,2,3,4， WANG Xinlong1， MA Chao1   

  1. (1.CCCC Second Harbor Engineering Co. Ltd., Wuhan 430040；
    2.Key Laboratory of Major Bridge Construction Technology and Transportation Industry, Wuhan 430040；
    〖JP2〗3.Transportation Infrastructure Intelligent Manufacturing Technology Research and Development Center of Transportation Industry, Wuhan 430040；
    4.CCCC Highway Major Bridge Construction National Engineering Research Center Co. Ltd., Wuhan 430040)
  • Received:2021-10-25 Revised:2021-11-02 Online:2023-04-30 Published:2023-04-20

Abstract: By wrapping the side friction reduction material outside the caisson, the side friction resistance of the caisson during sinking installation can be reduced. In order to study the side friction reduction effect of the different side friction reduction materials, namely, silica gel, rubber, polytetrafluoroethylene, iron sheet, were selected for the laboratory model test. With the contact material type as a single variable, the relative side friction between different friction reduction materials and the adjacent soil is obtained. The test results show that the side friction between PTFE, rubber and soil is similar, and the friction reduction effect is satisfactory, which has the engineering application value. The relevant research conclusions can provide basis for the selection of sinking aids for the caisson installation.

Key words: Contact Surface, Side Friction Reduction Material, Model Test

CLC Number: