About rock pressure loads on tunnel linings constructed using trenchless method
- 1 — Ph.D., Dr.Sci. advisor of general director in research scientific work OJSC NIPII «Lenmetrogiprotrans»
- 2 — Ph.D. deputy general director in research scientific work OJSC NIPII «Lenmetrogiprotrans»
Abstract
Data contained in requirements documents concerning recommended methods of loads calculation on tunnel linings and results of field studies of stress-strain state of the system «tunnel linings – rock» obtained during geotechnical monitoring when tunnels were constructed in various geological engineering conditions were considered in this paper. Recommendations about using methods of calculation on the basis of roof arch are provided by requirements documents regarding calculation of tunnel linings; at the same time natural stress field and stress-train performance of soil body, which influence to a great extent on stress-strain state of linings and supports are usually not taken into account. According to the results of field studies that were led in the framework of geotechnical monitoring during transport tunnels construction using technologies providing avoidance of tunnel face front and tunnel contour displacements, soil continuity is preserved and thus, a possibility of aching is avoided. Also this concerns water-saturated quaternary deposits during construction of running and escalator tunnels of underground rapid transit system of Saint-Petersburg with the help of hydraulic and earth-pressure balance-tunnel boring machines. In many cases of tunnels construction for different purposes when soil body displacements do not influence on continuity the calculations of linings and supports should be made with the help of continuum mechanics methods.
References
- Bezrodnyi K.P., Lebedev M.O. Mining and ecological monitoring during construction and exploitation of transport tunnels of North Caucasus. Internet-zhurnal «Naukovedenie». 2014. N5 (24). Available at: URL: www.naukovedenie.ru/sbornik5/24.pdf (in Russian).
- Bulychev N.S., Fotieva N.N., Strel'tsov E.V. Design and calculation of support of permanent workings. M.: Nedra, 1986, р.288 (in Russian).
- Bezrodnyi K.P., Protosenya A.G., Lebedev M.O. Interaction between lining and rock body during construction of running tunnels of deep-laid underground systems. Gornyi zhurnal. 2002. N9, p.30-33 (in Russian).
- Bezrodnyi K.P., Lebedev M.O., Markov V.A., Starkov A.Yu. Geotechnical provision during construction of two-lane running tunnel by means of earth-pressure balance-tunnel boring machines. Metroitonneli. 2015. N5, p.16-18 (in Russian).
- Lebedev M.O., Egorov G.D. Stress-strain state of linings of inclined tunnels constructed using different technological schemes. Izvestiya TulGU. Tekhnicheskie nauki. Iss.8. Part2. 2015, p. 18-26 (in Russian).
- Protosenya A.G., Ogorodnikov Yu.N., Demenkov P.A., Karasev M.A., Lebedev M.O., Potemkin D.A., Kozin E.G. Mechanics of underground structures. Structural models and monitoring. St.Petersburg: Izd-vo SPGGU-MANEB, 2011, р.355 (in Russian).
- Maslak V.A., Bezrodnyi K.P., Lebedev M.O., Gendler S.G. New technical and technological solutions for tunnels construction of underground system in megalopolis conditions.Gornyi zhurnal. 2014. N5, p. 57-60 (in Russian).
- Protosenya A.G., Lebedev M.O. Calculation of loads on linings of underground system constructed in physically-nonlinear soil mass. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh. 2002. N5, p.41-44 (in Russian).
- Protosenya A.G. Development of numerical model of forecast of mass limit state using strength criterion of Stavrogin. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh. 2015. N1, p. 3-7 (in Russian).
- Fotieva N.N., Bulychev N.S., Bezrodnyi K.P., Sil'vestrov S.N., Kasapov R.I. Ways of support safety increase and tunnels linings material consumption keeping. Mekhanika podzemnykh sooruzhenii, Tul'skii politekhnicheskii institut. Tula, 1986, p.3-10 (in Russian).
- Kulagin N.I., Bezrodnyi K.P., Golitsynskii D.M. et al. Washing-out. History of overcoming. St.Petersburg: TA Inzhiniring, 2005,р. 119 (in Russian).
- Bezrodny K. Construction of Escalator Tunnels of the St. Petersburg Subway / K.Bezrodny, M.Lebedev, G.Yegorov // SEE Tunnel:Promoting Tunneling in SEE Region: ITA WTC 2015 Congress and 41st General Assembly, May 22-28, 2015, Dubrovnik, Croatia. P. 20-22.
- Protosenya A.G. Elastoplastic problem for noncircular openings under Coulombs criterion / A.G.Protosenya, M.A.Karasev, N.A.Belyakov // Journal of Mining Science. 2016. Vol. 52. № 1. P. 53-61.
- Protosenya A.G. Investigating mechanical properties of argillaceous grounds in order to improve safety of development of megalopolis underground space / A.G.Protosenya, M.A.Karasev, D.N.Petrov // International Journal of Applied Engineering Research. Research India Publications. 2016. Vol. 11. № 16. P. 8949-8956.