PL EN
Numerical Simulation Study On Fire Hazard Of A Coal Mine Transport Roadway
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Więcej
Ukryj
1
State Key Laboratory of High-Efficient Mining and Safety of Metal Mines (University of Science and Technology Beijing), Ministry of Education, Beijing 100083, China
 
2
School of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi Province, 710054, China
 
 
Autor do korespondencji
Zhian Huang   

State Key Laboratory of High-Efficient Mining and Safety of Metal Mines (University of Science and Technology Beijing), Ministry of Education, Beijing 100083, China
 
 
Mining Science 2022;29:33-52
 
SŁOWA KLUCZOWE
DZIEDZINY
STRESZCZENIE
Ze względu na szczególne struktury i otoczenie geograficzne głównej drogi transportowej podziemnych kopalń węgla, trudno jest radzić sobie z wypadkami i ratownictwem w przypadku pożaru i łatwo jest spowodować ofiary i uszkodzenia strukturalne jezdni. W tym badaniu ustalono model pożaru jezdni przy użyciu oprogramowania FDS na podstawie analizy teoretycznej. Dyfuzja dymu, rozkład temperatury i rozkład stężenia CO w okresie pożaru były symulowane w czterech warunkach pracy. Wyniki pokazały, że czas potrzebny na zejście warstwy dymu do wysokości oddechu człowieka był dodatnio skorelowany z odległością między pozycją a źródłem ognia. W najbardziej niesprzyjających warunkach dym osiągnął wysokość oddechu człowieka w odległości 15,11s i 100 m od źródła ognia. Po wybuchu pożaru temperatura otoczenia na jezdni gwałtownie wzrosła, a najwyższa temperatura w obszarze przylegającym do źródła ognia osiągnęła 340 °C. Im dalej od źródła ognia, tym niższa temperatura, ale nadal była wyższa niż optymalna temperatura ludzkiego ciała ( 25 °C) do 200 m. Wyniki tego badania mogą stanowić podstawę do przygotowania planów awaryjnych pożaru dróg.
 
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