Numerical and theoretical study on the jacking force prediction of slurry pipe jacking traversing frozen ground

研究成果: Contribution to journalArticle査読

抄録

Jacking force is a controlling factor in design and construction of pipe jacking. To date, there is few researches focused on prediction of jacking force in frozen ground. Therefore, this paper investigates the main geotechnical issues, including the jacking force and pipe-soil interaction of pipe jacking in frozen ground. Firstly, a series of numerical simulations and comparative analyses with theoretical solutions were conducted to discuss the surface friction force. Then, a new calculation model of jacking force under different pipe-soil interactions and characteristics of the frozen ground was proposed by considering the impact of temperature and the static friction rather than sliding friction. Finally, compared with the measured data obtained from pipe jacking operation in frozen ground in Japan, the jacking force predicted by using the proposed calculation model agreed well with the measured data. The new calculation model can simulate the jacking force in frozen ground more precisely than the conventional ones. The conclusions of this paper would provide reference for prediction of pipe jacking force in frozen soil area.

本文言語英語
論文番号104076
ジャーナルTunnelling and Underground Space Technology
115
DOI
出版ステータス出版済み - 9 2021

All Science Journal Classification (ASJC) codes

  • 建築および建設
  • 地盤工学および土木地質学

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