Experimental Study on Propagation Regulation of Gas Explosive Shock Wave at Turning Point of Tunnel

In order to study the propagation regulation of the air shock-wave in the tunnel turning point after the gas exploded, it processed the experiment on the different turning point and analysis. The system used the gas quantity whose length changed participates in the response to change the initial overpressure of the shock-wave, obtained the overpressure change curve of the explosive shock wave in the different tunnel turning.point angles. The result show that, along with the initial overpressure's increase, the overpressure attenuation coefficient of shock wave increases gradually; along with the aggrandizement of the turning point angle, the overpressure attenuation coefficient of shock wave has also slightly increases. The experimental result has enriched the propagation regulation of gas explosion shock-wave in complex tunnel, and has the positive significance to prevent and control the shock-wave destruction and injury function.