Research On Design Scheme Of Safety Monitoring And Evaluation System For Urban Subway

With the rapid development of urbanization in China,the subway has developed rapidly with its unique advantages of environmental protection,high efficiency and convenience.At the same time,the disaster accidents in the process of urban subway operation caused different degrees of life and property losses to passengers,and had a relatively bad social impact.Therefore,it is of great practical significance to carry out the research of urban subway safety monitoring and evaluation system,to monitor all kinds of potential risk factors in the process of subway operation,and to evaluate and forewarn the safety status according to the results of on-site monitoring and data analysis.For the operation stage of urban subway,safety work involves many factors such as structure,environment,vehicles and so on.At present,most of the research work of subway monitoring is carried out for local contents such as stations,tunnels,tracks,etc.There is less research on the construction of urban subway safety monitoring system with the whole subway line as the research object.The monitoring content of local monitoring system is relatively small,the monitoring data obtained is relatively limited,and each monitoring system is relatively scattered,so it is difficult to achieve a comprehensive grasp of the safety situation of one or several subway lines.In view of this problem,it is necessary to carry out the research on the safety monitoring and evaluation system that takes the whole line of urban subway as the research subject and includes multiple monitoring subsystems.The specific research work is as follows:In terms of urban subway operation safety,it involves many factors such as structure,environment,vehicles and so on.Most of the existing subway monitoring systems are focused on the stations,tunnels,tracks and other parts of the research,while the research on the whole subway line as the research object to build the urban subway safety monitoring system is less.In this paper,the whole line of a city subway is taken as the research object,and the safety monitoring and evaluation system of the city subway including multiple monitoring subsystems is studied.The specific research work is as follows:First of all,based on the analysis of the structural characteristics of subway station,tunnel and track,this paper systematically analyzes the potential risks in theprocess of subway operation,explores the design ideas(including design principles,design basis,overall objectives)of the urban subway safety monitoring and evaluation system,the structural characteristics of the system and the composition of each monitoring module,and puts forward The overall idea of the design of the safety monitoring and evaluation system of urban subway is defined,and the contents of the monitoring of the subway station,tunnel and track are defined.The design scheme of the safety monitoring and evaluation system of the whole subway line is proposed,including the layout and networking scheme of various sensors and hardware equipment,and the specific requirements of each functional module in the software design are put forward.Then,taking the subway project of a city in the north as an example,the whole scheme design of the whole line safety monitoring and evaluation system of the city subway is given,including the specific monitoring content,sensor selection and layout scheme,as well as the software function and requirements of the monitoring system.Finally,the routine monitoring content of subway operation management is studied,mainly from the two aspects of station and train.The conventional monitoring system and the urban subway safety monitoring and evaluation system are independent of each other,but the monitoring data are complementary to each other,which together provide technical support for the safe and stable operation of the urban subway.