Reliability Analysis of Shield Tunnel Excavation Face Based on Copula Theory
- 10.2991/msmi-18.2018.25How to use a DOI?
- Shield tunneling, Supporting pressure, Surface subsidence, Copula function, Monte Carlo method, Reliability analysis.
Shield excavation technology is widely used in subway tunnel construction. There are complex risk factors in the process of tunnel excavation, and there is a certain correlation between them. The traditional reliability analysis is difficult to characterize the coupling relationship. In this paper, the Copula theory can accurately describe the characteristics of the correlation between parameters, and build the joint distribution function between support pressure and surface settlement. The correctness of this method is verified by engineering examples. Finally, the results show that the Frank function of Archimedean Copula with single parameter is the best Copula function. It can well characterize the joint distribution function between support pressure and surface settlement, and realize the random simulation more accurately. Combining with Monte Carlo simulation, more reasonable reliability results can be obtained. There is a strong negative correlation between the two parameters, neglecting this negative correlation will overestimate the failure probability of the parameter.
- © 2018, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Wen-Wei QIN AU - Li-Mao ZHANG AU - Xian-Guo WU AU - Wei ZHANG PY - 2018/04 DA - 2018/04 TI - Reliability Analysis of Shield Tunnel Excavation Face Based on Copula Theory BT - Proceedings of the 2018 5th International Conference on Management Science and Management Innovation (MSMI 2018) PB - Atlantis Press SP - 137 EP - 142 SN - 2352-5428 UR - https://doi.org/10.2991/msmi-18.2018.25 DO - 10.2991/msmi-18.2018.25 ID - QIN2018/04 ER -