Abstract
Using high-strength steels for pressure shafts and tunnel liners and taking into account significant rock mass participation allows the design of comparatively thin steel liners in hydropower projects. Nevertheless, during emptying of waterways, these steel linings may be endangered by buckling. Compared with traditional measures such as increased steel liner thickness and stiffeners, pressure relief valves are a very economical solution for protection of steel liners against critical external pressure and therefore buckling during emptying. A calculation procedure has been developed for the design of the required number and arrangement of pressure relief valves, and this has been used successfully in practice. Systematic model tests enabled the assumptions of the design method to be verified.
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References
Amstutz E (1969) Das Einbeulen von Schacht–und Stollenpanzerungen. Schweizerische Bauzeitung 87(28):3–11
Bobet A, Nam SW (2007) Stresses around pressure tunnels with semi-permeable linings. Rock Mech Rock Eng 40(3):287–315
Finger W, Wieser H (1980) Zur Aufnahme des Aussendruckes bei Stollenpanzerungen. Neue Lösungen und ihre rechnerische Erfassung. Bauingenieur 55:241–251
Hachem FE, Schleiss AJ (2009) The design of steel-lined pressure tunnels and shafts. Hydropower Dams 16(3):142–151
Jacobsen S (1977) Buckling of circular rings and cylindrical tubes under external pressure. Water Power Dam Constr 29(12):460–467
Jacobsen S (1990) Recommendations on the design of steel linings for penstocks. Water Power Dam Constr 42(4):44–47
Johannesson P, Schleiss A, Korbin G (1988) Calaveras project high head pressure tunnel. Water Power Dam Constr 40(11):43–48
Louis C (1967) Strömungsvorgänge in klüftigen Medien und ihre Wirkung auf die Standsicherheit von Bauwerken und Böschungen im Fels. Veröffentlichung 30, Institut für Boden-und Felsmechanik, Universität, Karlsruhe
Rat M (1973) Ecoulement et répartition des pressions interstitielles autour des tunnels. Bull. Liaison Labo. Pont et Chaussées 68: 109–124 (ref. 1423)
Schleiss A (1985) Bemessung von Druckstollen. Teil I: Literatur, Grundlagen, Felshydraulik insbesondere Sickerströmungen durch Auskleidung und Fels. VAW-Mitteilung 78, Versuchsanstalt für Wasserbau, Hydrologie und Glaziologie, ETH Zürich
Schleiss AJ (1986) Design of previous pressure tunnels. Water Power Dam Constr 38(5):21–29
Schleiss A (1988) Design criteria applied for the lower pressure tunnel of the North Fork Stanislaus River Hydroelectric Project in California. Rock Mech Rock Eng 21(2):161–181
Schleiss A (1989) Analyse der Gebirgstragfähigkeit bei der Bemessung des Hochdruckstollen Collierville in Kalifornien, vol 38. Salzburger Kolloquium für Geomechanik, pp 73–80
Schleiss AJ (1997) Design of concrete linings of pressure tunnels and shafts for external water pressure. In: Proceedings of Tunneling Asia ’97, New Delhi, pp 291–300
Schleiss A (2002) Berücksichtigung des Restrisikos bei der Konzeption und Bemessung von hochbeanspruchten Druckschächten. Int. Symposium Moderne Methoden und Konzepte im Wasserbau, Versuchsanstalt für Wasserbau, Hydrologie und Glaziologie (VAW), VAW-Mitteilung 175, pp 385–394
Wyss U (2003) Dimensionnement des blindages drainés contre le voilement. Travail de diplôme, Laboratoire de constructions hydrauliques LCH, EPFL
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Schleiss, A.J., Manso, P.A. Design of Pressure Relief Valves for Protection of Steel-Lined Pressure Shafts and Tunnels Against Buckling During Emptying. Rock Mech Rock Eng 45, 11–20 (2012). https://doi.org/10.1007/s00603-011-0187-9
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DOI: https://doi.org/10.1007/s00603-011-0187-9