Comparative analysis of methods for assessing the seismic resistance of structures of the lining of an underground structure

The article compares the methods for estimating stresses on the contour of the tunnel lining, resulting from the actions of a seismic load. The results of stress calculations were compared using the analytical method presented in SP 268.1325800.2016 «Transport facilities in seismic regions. Design Rules», and performed on the basis of finite element modeling in the Abaqus CAE software package. The paper compares the results of the action of seismic load on the lining of mine workings with different methods for solving this problem. Analytical calculations performed in the MathCAD software package are compared with the results of modeling in the Abaqus CAE software package for similar mining geomechanical models. The calculations performed in MathCAD reflect the quasi-static formulation, and computer simulations were carried out in the quasi-static and dynamic formulation. Analytical calculations and computer modeling made it possible to obtain stresses at characteristic points on the contour of the mine working lining and compare it’s values. The comparison is made for equivalent earthquake conditions (9 points on the Richter scale). Possible areas of application of the developed mining geomechanical model for analyzing the impact of seismic load in a dynamic formulation are considered, its advantages over analytical calculation are analyzed.

Keywords: stress-strain state of the massif, seismic resistance, quasi-static setting, dynamic setting, lining, mine working, mining geomechanical model, stress field.
For citation:

Tkhorikov A. I., Tulin P. K., Tretenkov I. V. Comparative analysis of methods for assessing the seismic resistance of structures of the lining of an underground structure. MIAB. Mining Inf. Anal. Bull. 2023;(9-1):270-287. [In Russ]. DOI: 10.25018/0236_1493_2023_ 91_0_270.

Acknowledgements:
Issue number: 9
Year: 2023
Page number: 270-287
ISBN: 0236-1493
UDK: 622.3
DOI: 10.25018/0236_1493_2023_91_0_270
Article receipt date: 01.07.2023
Date of review receipt: 09.08.2023
Date of the editorial board′s decision on the article′s publishing: 10.08.2023
About authors:

A.I. Tkhorikov1, Cand. Sci. (Eng.), Assistant Professor e-mail: Tkhorikov_AI@pers.spmi.ru, ORCID ID: 0000-0002-0404-5690,
P.K. Tulin1, Cand. Sci. (Eng.), Assistant Professor, e-mail: Tulin_PK@pers.spmi.ru, ORCID ID: 0000-0002-0820-4759,
I.V. Tretenkov1, Cand. Sci. (Geol. Mineral.), Assistant Professor, e-mail: Tretenkov_IV@pers.spmi.ru, ORCID ID: 0000-0002-1104-8080,
1 Saint-Petersburg Mining University, 199106, Saint-Petersburg, Russia.

 

For contacts:

A.I. Tkhorikov, e-mail: Tkhorikov_AI@pers.spmi.ru

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