RESEARCHES REGARDING THE USE OF LAMINATED PROFILES FOR THE SUPPORT OF JIU VALLEY MINE GALLERIES IN ORDER TO INCREASE THEIR OPERATIONAL PERFORMANCES.

The paper brings forward the issue of the determination of the physical and mechanical characteristics of the laminated profile used for the support of galleries in the coal industry in order to improve the constructive and functional solutions of the support of the gallery cross-section during their lifespan. The comparative results derived from the equivalence of the laminated profiles used in the Jiu Valley Coal Basin are also presented. [ABSTRACT FROM AUTHOR]