Reliability Analysis on Multiple Failure Modes of Underground Chambers Based on the Narrow Boundary Method

Huadong Yin (), Daobing Zhang (), Jiahua Zhang, Biao Yu and Xiaomeng Yuan
Additional contact information
Huadong Yin: School of Resource Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
Daobing Zhang: School of Resource Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
Jiahua Zhang: Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Hunan University of Science and Technology, Xiangtan 411201, China
Biao Yu: School of Resource Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
Xiaomeng Yuan: School of Resource Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China

Sustainability, 2022, vol. 14, issue 19, 1-20

Abstract: This paper proposes to study the stability of underground chambers while taking into account the nonlinear characteristics of geotechnical materials and pore water. According to the upper bound theorem of nonlinear limit analysis and the reliability theory, the failure mode and reliability model of underground chambers are established considering the pore water effect. The upper bound solution expression of the surrounding rock pressure in the underground chamber is deduced. The variation law of the surrounding rock pressure is analyzed under different parameters. At the same time, based on the narrow boundary method considering the correlation of multiple failure modes, the influence of different random parameters on the failure probability and reliability index of underground chambers is studied. The results show that the water-level line height, pore water pressure coefficient and Hoek-Brown failure criterion parameter have significant effects on the surrounding rock pressure and underground chamber reliability. In addition, the concept of the safety level is introduced, and the minimum-support force range of the underground chamber with safety level 1 is obtained under different random parameters. The research results can provide a theoretical basis and reference for the structural safety evaluation of underground chambers.

Keywords: underground chamber; surrounding rock pressure; reliability; narrow boundary method; pore water (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/14/19/12045/pdf (application/pdf)
https://www.mdpi.com/2071-1050/14/19/12045/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:19:p:12045-:d:923428

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().