STUDY ON CRITICAL VELOCITY IN TUNNELS WITH CEILING BEAMS

Study on critical velocity in tunnels with ceiling beams

Ceiling beams at the top of tunnels are more common in actual projects.Under the influence of thermal buoyancy, the ceiling structure significantly affects the diffusion characteristics of fire smoke within the tunnel.This study investigated the influence of ceiling structural characteristics (beam height (hB) and beam spacing (dB)) on tunnel longi

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Translation of labor values and instructions in a modern family

In modern Russian science the role of various social institutions in shaping the labor values and attitudes of the younger generation is not sufficiently considered.A sociological study conducted by the author in 2018 by distributing questioning among university students in Nizhny Novgorod and their parents considers a wide range of issues related

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