Implementing FLAC3D model for simulating deformation mechanism of steel frame support set by actual profile
Purpose. The problem of simulating steel frame irreversible deformation and displacement remains unsolved. The purpose of this research was to develop a new approach to simulation of frame yield support. Methods. We used combination of different methods, namely FLAC3D model, benchmark tests and ma...
Збережено в:
Видавець: | УкрНДМІ НАН України, Інститут геотехнічної механіки НАН України |
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Дата: | 2016 |
Автори: | , |
Формат: | Стаття |
Мова: | English |
Опубліковано: |
УкрНДМІ НАН України, Інститут геотехнічної механіки НАН України
2016
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Назва видання: | Розробка родовищ |
Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/104715 |
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Цитувати: | Implementing FLAC3D model for simulating deformation mechanism of steel frame support set by actual profile / V. Nazymko, V. Griniov // Розробка родовищ: Зб. наук. пр. — 2016. — Т. 10, вип. 1. — С. 57- 62. — Бібліогр.: 13 назв. — англ. |
Репозиторії
Digital Library of Periodicals of National Academy of Sciences of UkraineРезюме: | Purpose. The problem of simulating steel frame irreversible deformation and displacement remains unsolved. The
purpose of this research was to develop a new approach to simulation of frame yield support.
Methods. We used combination of different methods, namely FLAC3D model, benchmark tests and materialistic
frames profile in the form of primitive proxies in place of standard structural elements, for instance, beams, which
are actually mathematical lines that have abstract geometrical characteristics of the frame profile.
Findings. The research focused on the interaction of steel frame supports and the surrounding rocks during tail entry
maintenance behind the longwall face to provide direct flow of air, which reduces methane explosion hazard.
Originality. The proposed profile model can be helpful as a practical tool that can assist in frame support improvement
during complex interaction of rock massif with frame support in difficult geological and geomechanical
conditions.
Practical implications. Owing to this approach, we were able to obtain practically all patterns of the actual frame
profile behavior: frame turn and displacement, plastic hinge in coffering, longitudinal twisting and splitting, lateral
bending, breakage and sliding in yield joints. Surprisingly, frame support behavior in computer model was extraordinary
realistic despite primitive approximation of the frame profile, which demonstrates originality of the
new approach. |
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