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- Title
NEW TYPES OF LAMINATED PROFILES FOR THE CONSTRUCTION OF SLIDING METALLIC SUPPORT REINFORCEMENTS.
- Authors
MIHAI, RADU SORIN; IOEL, VERES; VALERIU, PLEŞEA
- Abstract
The present construction of the sliding metallic supports used in underground excavations supposes the connection of components (the beam and the two props) with openings between the shoulders of the laminated profiles, which gives to the system during loading the effect of decalibration of the construction by compressing the superior element (the beam) and splitting the inferior element (the prop) with all the unfavourable events to follow regarding the seize up (jam) at the level of the clamps of the sliding of the elements and the stiffening of the support. Considering the improvement of the construction and increasing its safety as well as the malleability of the metallic support, the paper brings forward new laminated profiles for the execution of support elements, i.e. safer and more performant elements regarding the cross section and the connection, which together with the proper binding elements may contribute to meeting the competition objectives by creating a modern and competitive equipment in order to increase the efficiency of the execution and operation of underground excavations. The new construction of the presented laminated profiles implies the change of the shape of the actual laminate and the increase of its resistance characteristics while carrying out the binding and the complete and permanent contact between the elements for the entire sliding race.
- Subjects
LAMINATED materials; ARCHAEOLOGICAL excavations; SYSTEMS design; MECHANICAL loads; STIFFNESS (Mechanics)
- Publication
Annals of 'Constantin Brancusi' University of Targu-Jiu. Engineering Series / Analele Universităţii Constantin Brâncuşi din Târgu-Jiu. Seria Inginerie, 2016, Issue 2, p56
- ISSN
1842-4856
- Publication type
Article