Influences of Semi-transverse Ventilation on Smoke Spread Rule of Urban Traffic Link Tunnel

摘要

The fire smoke movement of urban traffic link tunnel (UTLT) under the semi-transverse ventilation was studied by Fire simulation software (FDS). With the method of theoretical analysis and numerical simulation, 3 fire scenarios have been designed to obtain the fire smoke movement. The analytical results show that: Semi-transverse ventilation can effectively control the spread of fire smoke. Exhaust port interval of 20 m and 50 m has little effect on function of smoke control. This result provides references for the design of smoke control measures.