A Review of Progress of Key Technologies for Urban Lifeline Safety Engineering
The urban lifeline safety project is a major national livelihood project,which ensures the safe opera-tion of urban gas,water,electricity and other systems.Nowadays,the project is confronted with three types of difficulties:Difficulties in mechanism discovery and experimental reproduction;difficulties in risk detection and early identification,and difficulties in accurate early warning and collaborative prevention and control.In order to reveal the mechanism and reproduce the experiments,a full-size urban lifeline multi-hazard large-scale scientific device is firstly developed in the world,a series of dis-aster modes with 5 cate-gories and 169 kinds of disasters coupled are established,based on which a comprehensive risk dynamic as-sessment method coupled with underground pipelines and above-ground disaster-bearing body is presented.To improve the risk detection and early identification,highly sensitive gas sensing laser chip as well as de-tector with active grating and wavelength-biased are invented.We develop an intelligent ball for leakage lo-cated in water supply pipe network based on the inertial guidance,force balance,acoustic spectrum and Bei-Dou.Bridge overall modal(fingerprint)monitoring technology is break-through.In order to solve the prob-lem of accurate early warning and collaborative prevention and control,an urban lifeline safety risk physical heuristic artificial intelligence early warning technology is presented,based on which a monitoring and early warning system is developed with collaborative sensing,fusion monitoring,targeting early warning,linkage response and other functions.The related studies result in the development of the safety and emergency re-sponse industry,followed by the pioneering and substantial contributions to the prevention and control of urban lifeline risks.
urban lifelinesrisk assessmentelements-at-riskdisaster mechanismmonitoring and war-ning system
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