Research On The Estabilishment And Ealuation Of Monitoring System During Metro Hields Construction Of Disaster

In the 21st century, with the continuous progress of science and technology, China's urban rail traffic attracts large and medium cities more than 80% of passenger with high-speed, on-time, low energy consumption, less pollution, safety, comfort and other features. Major cities metro has into the rapid construction period. With the diversity, cross-cutting nature, complexity and particularity of the construction environment of the construction technology, construction accidents are also on the increase, it lets people attach importance to construction planning and safe construction methods and technology, actively carry out the metro construction disaster prevention and control.In order to achieve the purpose of construction safety better, this literature used review method, on-site survey method, questionnaire survey method and others, based on analyzing the previously metro construction disaster monitoring system, use of extension theory establish the shield construction disaster monitoring system, analysis monitoring indicators, quantitative analysis, the ultimate realization of accurate monitoring, reducing accidents. The contents are as followed:1. It analyzed of monitoring indicators and project monitoring of metro Shield. Based on the theoretical overview, this paper analyzed the monitor risk factors in the various stages of shield construction to determine the process of metro shield construction monitor and through the monitoring process identified the monitor indicators and the association rules during key monitoring indicators, in order to lay the foundation for later Extension Analysis of indicators.2. Using field research methods, it empirical researches on metro construction disaster monitoring indicators Using of expert interviews on the problem of metro construction monitoring with a predictive analysis. By field research, historical data and relevant documentation analysis metro construction, such as an analysis of monitoring indicators, and through mining technology of extension association rules analysis metro construction monitoring risk indicators and classification, and the metor shield construction of indicators for monitoring structure is divided into nine first-order items,37 second-order item, and then extension matter-element analysis, carry out an index to quantify, so let risk indicators more clearly monitored.3. Through a case studies of a metro construction segment shield construction, it used extension theory's mining method to analysis monitoring indicators. It established extension monitoring model to find key monitoring indicators from metro construction. Determine the monitoring project, and extension analysis of it, quantitative monitoring indicators, and thus it has anaccurate monitoring about the construction of a metro shield.4. Through the establishment of metro construction monitoring system, this paper will use the G1 method to conduct a comprehensive evaluation of its research, use G1 method's advantages, evaluate monitoring indicators, identify the system's deficiencies, greater risk factors that affects metro construction and timely modification, laying the foundation of risk prevention measures; and then filter out the monitoring risk factors that brought about the construction of the shield more important risks, provide the basis and decision-making for metro construction units and the owners.