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Information × Registration Number 0219U005270, 0117U006810 , R & D reports Title Analytical conformities to the law of the tensed and deformed state of hoisting shaft support during conducting of the special works popup.stage_title Head Tiutkin Olexiy, Доктор технічних наук Registration Date 25-07-2019 Organization Dniepropetrovsk National University of Railway Transport named after Academician V. Lazaryan popup.description2 Hoisting shaft finite elements model has been developed. The model is based upon actual geometry and results of laboratory studies. Three blocking types (i.e. reinforced-concrete blocks, gray cast-iron tubbings, and modified gray castiron tubbings) and two soil types (i.e. sand and clayish soil at +8°С temperature) in terms of different freezing temperatures (i.e. (-2, -6 and -10°С) were analyzed numerically. Results of the research have helped identify dependences concerning formation of a stress state of the multilayer neighbourhood rock mass - frozen soil - hoisting shaft frame system while varying properties of the listed types of a frame, neighbourhood rock mass, and ice-soil blocking. Regularities of the stressed state components deepening upon the frozen soil elasticity modulus, corresponding to its certain temperature, and elasticity modulus of a hoisting shaft frame have been obtained. The regularities connect changes in the stress of a hoisting shaft blocking in the context of specific freezing process. Product Description popup.authors Дубінчик Ольга Іванівна Мірошник Віталій Анатолійович Петренко Володимир Дмитрович Петросян Наталія Костянтинівна popup.nrat_date 2020-04-02 Close