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Thesis pressurized tunnels2

McGill University GUIDELINES FOR PRELIMINARY DESIGN OF UNLINED PRESSURE TUNNELS By André J Rancourt Supervisor Prof Hani S Mitri A thesis submitted to the Faculty of Graduate Studies and Research in partial ful ?llment of the requirements for the degree of Doctor of Philosophy ? André J Rancourt CLibrary and Archives Canada Published Heritage Branch Wellington Street Ottawa ON K A N Canada NOTICE The author has granted a nonexclusive license allowing Library and Archives Canada to reproduce publish archive preserve conserve communicate to the public by telecommunication or on the Internet loan distrbute and sell theses worldwide for commercial or noncommercial purposes in microform paper electronic and or any other formats The author retains copyright ownership and moral rights in this thesis Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission In compliance with the Canadian Privacy Act some supporting forms may have been removed from this thesis While these forms may be included in the document page count their removal does not represent any loss of content from the thesis Bibliothèque et Archives Canada Direction du Patrimoine de l'édition rue Wellington Ottawa ON K A N Canada Your ?le Votre référence ISBN - - - - Our ?le Notre référence ISBN - - - - AVIS L'auteur a accordé une licence non exclusive permettant à la Bibliothèque et Archives Canada de reproduire publier archiver sauvegarder conserver transmettre au public par télécommunication ou par l'Internet prêter distribuer et vendre des thèses partout dans le monde à des ?ns commerciales ou autres sur support microforme papier électronique et ou autres formats L'auteur conserve la propriété du droit d'auteur et des droits moraux qui protege cette thèse Ni la thèse ni des extraits substantiels de celle-ci ne doivent être imprimés ou autrement reproduits sans son autorisation Conformément à la loi canadienne sur la protection de la vie privée quelques formulaires secondaires ont été enlevés de cette thèse Bien que ces formulaires aient inclus dans la pagination il n'y aura aucun contenu manquant CThe material world is a possible movement of consciousness and I am choosing moments out of these movements to bring my actual experience into manifestation A Goswani CABSTRACT Unlined pressure tunnels are used to convey water to hydroelectric powerhouses Usually each project has a forebay reservoir an intake a pressurized tunnel a surface or underground powerhouse and a tailrace tunnel or channel This thesis deals with the design of unlined pressure tunnels These were ?rst driven by the Norwegians in hard granitic rock masses which would constitute the ideal material for this type of structure However the increase in demand for electrical energy has pushed the industry to implement projects in sites with less favourable geological conditions all over the world For each pressure tunnel there are normally three di ?erent types of sections along its length the unlined section the semi- lined section and the lined section The unlined pressure tunnel is pervious to a certain extent even if