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The Constitution of Georgia provides the main principles of protection of employees and employers at job places, concerning healthy and safety conditions. The paper reviews the new Laws of Georgia pertinent to labor safety, elaborated and approved during the last years. These Laws regulate social-economical, technical, hygienic and other conditions of work of employees at job places. These are Laws, destination of which to secure the workers health and safety in the present, future and must not have a negative inf...

The paper presents the pattern of variation of critical velocity during longitudinal downward ventilation in an inclined road tunnel with its slope varying within 0-8 degrees. The results of both full-scale numerical modelling and laboratory experiments for a 1:10 scale tunnel models are presented. The effect of fire on the critical velocity and gradient factor was studied on the models. During the numerical modelling, the seat of fire, fans and tunnel portals were modelled with 0.1*0.1*0.1 m cells, while the cell...