| With the rapid development of the National Expressway,more and more long and downhilland highway tunnel groups have been built in China.But the tunnel group,especially the long and downhill tunnel group,has brought great danger to the safety of the road operation.Vehicles running in these sections are prone to traffic accidents such as rear end and rollover,which can easily lead to casualties,tunnel fires,hazardous materials and other disasters.It causes great loss to the people’s life and property which should be paid attention to.The section has complex geographical conditions,large traffic volume and more special vehicles.It is easy to take all kinds of disasters and the safety situation is more dangerous.Based on the research at home and abroad,based on the characteristics of this section,combined with the research status of tunnel group operation disasters and protection measures at home and abroad,the safety measures of tunnel group and long downgrade section are analyzed and studied,and the disaster prevention system and emergency system management model of this section are elaborated in detail.Through analyzing the traffic safety characteristics of the long and downhill tunnel group,we get the characteristics of the accident,the influencing factors of the traffic accident and the driving characteristics of the driver.The safety design measures of the section of the maudyazaki tunnel are put forward,including the design of the safe lane design,the mark line safety equipment design,the design of the monitoring and control,the design of the fire alarm,the design of the ventilation and fire protection,the electrical and electrical design of the power supply lighting and so on.In the design,the vehicle induction mode,which combines the long downhill tunnel group security facilities sign and the variable information sign,is used to induce the driver many times in advance.And the accident occurs effectively by the design of the long downslope whole course video monitoring and the intelligent mode of the escape lane.In the management,through the study of the principle of emergency plan,the classification of emergency plan system and the existing problems at present,the emergency plan of tunnel group safety management is worked out,and the measures of fire emergency plan for maudyazaki tunnel group are put forward to effectively reduce the occurrence of safety accidents.In view of the characteristics of special sections of long downhill tunnel group,we take emergency management measures before and after.Before the incident,the road vehicle induction and other related design guarantee measures are strengthened from the design point of view.And the emergency management is ensured to be active,fast and effective through the contingency system compiled afterwards.These research results and the measures taken have theoretical significance and practical application value for similar engineering practice in the future. |
