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Browsing by Subject "safety factor"

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    Item type:Article, Access status: Open Access ,
    Обоснование ширины предохранительных целиков при сооружении подземного транспортного перехода под керченчким проливом
    (Wydawnictwa AGH, 2010) Sdvižkova, Elena Aleksandrovna; Hozâjkina, Nataliâ; Šašenko, Dmitrij
    The contract design of an underground channel construction under Kerch strait is stated in this paper. Underwater tunnels under the strait are important elements of transport channel. These tunnels should be placed in space as close to each other as possible. It provides smaller expenses for infrastructure creation. However the minimum distance between tunnels is limited by the width of pillars, which should have a certain long-term stability. The technique is developed to determine the pillar width at which long-term safe operation of underground channel is provided. Researches are executed concerning mining-geological conditions of Kerch strait bottom. The technique is based on use of numerical simulation, the phenomenological strength theory and an integrated safety factor definition.