Highway Tunnel Major Hazard Disaster Risk Assessment Study

In this paper, the characteristict,the reason and the harm of major hazard installations and the current situation of the research in road tunnel have been analyaed, with theory computation of the damage modle and the digital simulation-CFD, studying the evaluation of the major hazard installations in tunnel, analyzing the temperature field,the speed field and the distribution of the smoke flowing in fire of tunnel, analyzing the injury scope of the detonation and revelation, and making the suggestion about the corresponding countermeasure.The following work has been done:1. The standard and the model of the evaluation has been studied, based as the revision of theory about the evaluation, the model of evaluation about major hazard installations in tunnel has been established. Several kinds of the methods have been used to the evaluation in tunnel, to make the process of the evaluation more reasonable.2.The model of the evaluate about the dangerous chemical in fire of tunnel has been established, the hazardous nature has been studied, the temperature field,the speed field and the distribution of the smoke flowing in fire of tunnel has been analyzed .3. The model of evaluation about the explode and the revelation of the dangerous chemical in tunnel has been established, the injury scope about the cxplode and the revelation has been analyzed, its rule has been obtained.4.Focus on the situation of major hazard installations in tunnel, I suggest that we should establish a system to manage the risk, strengthen the evaluate of the risk and the construction of emergency and recovery and so on, to reduce the consequence and the influence scope of the disaster effectively.