梁波

The study on Tunnels and underground engineering risk analysis and assessment is a relatively short history, especially the shield tunnel project, also part of the country has just started, but have gained more and more attention. However,The Comprehensive Disaster Treatment System in tunnel construction is infancy. Therefore, it is particularly important and great significance to expand the study on the tunnel and underground engineering risk assessment and disaster response Treatment of system integration, while China's tunnels and underground engineering construction scale continues to expand.This paper summarizes the present common types of disasters that appears shield tunnel construction period, including the out of holes Stage 4 kinds of common disasters and shield stages of 11 kinds of common disasters, which are incorporated into risk analysis and assessment model, and conducte a comprehensive evaluation and discussion. At the same time, the information of these disasters is the important basic information in shield tunnel Integrated Treatment System for Disaster.The analytical work In this paper as follows:First, focus on the risks arising from the mechanism, risk analysis and assessment of the models, as well as the project's overall risk assessment. Fully exploit the predecessors of the research data and research results, has been the probability of various types of risk the possibility of accident. The introduction of risk values and risk indicators as a risk assessment indicators and targets are given a risk-based standards for risk rating.Second, summed up all kinds of common characteristics of shield tunnel disaster, focusing on the 15 kinds of disasters, the occurrence of the phenomenon, the causes, prevention measures and Treatment program.Third, risk assessment based on the shield tunnel construction under the conditions of disaster Treatment composition and content of the database system was discussed and disaster risk management software and Treatment of the various modules of the system preliminary design.The research results in this paper include:â‘ A comprehensive summary of the shield tunnel construction phase of 15 kinds of disasters and accidents. Respectively, the phenomenon of disaster, causes, preventive measures and Treat measures were summarized for the Comprehensive Disaster Treatment System .â‘¡make full use of existing research data and research results, promote the value of using risk assessment and risk indicators two indicators of disaster shield tunnel quantitative evaluation methods.â‘¢with a view to develop more efficient, more versatile and more practical value software, proposed to integrate the risk assessment system and disaster emergency response system.