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作者:

Tao, Lian-Jin (Tao, Lian-Jin.) (学者:陶连金) | Zhang, Yu (Zhang, Yu.) | Zhao, Xu (Zhao, Xu.)

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EI Scopus

摘要:

There are several well-established jacking force empirical models available for predicting the jacking force. However, the jacking force calculated by different empirical formulas have big difference and the face resistance is difficult to measure directly. These factors constrain the prediction of the jacking force in design stage. This paper introduces a pipe jacking technology with non-over excavation. The data of jacking force and steel pipe stress were recorded and analyzed in the process of pipe jacking. According to field monitoring data and the finite element numerical simulation results, the face resistance and the friction resistance can be obtained by back analysis. And the face resistance obtained is compared with the empirical value. The results show that JMTA and P-K models have practical significance in calculating face resistance F0, while Ma Baosong model underestimates the value of face resistance in silty sand formation. This research can provide a theoretical basis for the selection of jacking force prediction model. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词:

Geomechanics Steel pipe Forecasting Sand Predictive analytics Excavation Jacks

作者机构:

  • [ 1 ] [Tao, Lian-Jin]The Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing, China
  • [ 2 ] [Zhang, Yu]The Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing, China
  • [ 3 ] [Zhao, Xu]The Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing, China

通讯作者信息:

  • [zhang, yu]the key laboratory of urban security and disaster engineering, ministry of education, beijing university of technology, beijing, china

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来源 :

ISSN: 2366-2557

年份: 2021

卷: 125

页码: 285-294

语种: 英文

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