DOI QR코드

DOI QR Code

Reliability analysis of anti-seismic stability of 3D pressurized tunnel faces by response surfaces method

  • Zhang, Biao (School of Civil Engineering, Hunan University of Science and Technology) ;
  • Ma, Zongyu (School of Resource and Environment and Safety Engineering, Hunan University of Science and Technology) ;
  • Wang, Xuan (School of Civil Engineering, Central South University) ;
  • Zhang, Jiasheng (School of Civil Engineering, Central South University) ;
  • Peng, Wenqing (School of Resource and Environment and Safety Engineering, Hunan University of Science and Technology)
  • 투고 : 2019.10.11
  • 심사 : 2019.12.26
  • 발행 : 2020.01.10

초록

The limit analysis and response surfaces method were combined to investigate the reliability of pressurized tunnel faces subjected to seismic force. The quasi-static method was utilized to introduce seismic force into the tunnel face. A 3D horn failure mechanism of pressurized tunnel faces subjected to seismic force was constructed. The collapse pressure of pressurized tunnel faces was solved by the kinematical approach. The limit state equation of pressurized tunnel faces was obtained according to the collapse pressure and support pressure. And then a reliability model of pressurized tunnel faces was established. The feasibility and superiority of the response surfaces method was verified by comparing with the Monte Carlo method. The influence of the mean of soil parameters and support pressure, variation coefficients, distribution type and correlation of c-φ on the reliability of pressurized tunnel faces was discussed. The reasonable safety factor and support pressure required by pressurized tunnel faces to satisfy 3 safety levels were presented. In addition, the effects of horizontal seismic force, vertical seismic force and correlation of kh-kv on the reliability of pressurized tunnel faces were also performed. The method of this work can give a new idea for anti-seismic design of pressurized tunnel faces.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Hunan Provincial Education Department, Natural Science Foundation of Hunan Province

All authors thank the financial support by the National Natural Science Foundation of China (51804113, 51674115 and 51974118), Scientific Research Fund of Hunan Provincial Education Department (17B095) and Natural Science Foundation of Hunan Province (2019JJ40082) for this research work.

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피인용 문헌

  1. Reliability Analysis of Seismic Stability of Shield Tunnel Face under Multiple Correlated Failure Modes vol.25, pp.8, 2020, https://doi.org/10.1007/s12205-021-2174-3
  2. Upper bound limit analysis of blow-out failure mode of excavation face of shield tunnel considering groundwater seepage vol.26, pp.3, 2020, https://doi.org/10.12989/gae.2021.26.3.227