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List of products by author: Y. Kim
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Comparison of tunnel excavation cycle time for Norwegian and Korean tunnels
Abstract: Tunnel construction cost and time in a drill & blast tunnel are quite different from country to coun- try since they have been developed considering geological conditions, social regulations and eco- nomic situations of each country, although the design concept and general procedures of opera- tions are practically the same worldwide. Thus, every country has been trying to reduce construction...
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Numerical study on water jet fire extinguishing system for performance verification
Abstract: This paper describes numerical simulation on the water jet extinction system for systematic verification of its performance applied in double deck tunnel in great depth underground space. Numerical model applied is 2D Eulerian multiphase model, and its results is validated with the equation of motion and experiment. Simulation results show that volume fraction of water at all nozzle outlet...
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