The city lifeline ensures safe operation

"One network management" lifeline

Monitoring equipment such as level, acceleration sensor and strain sensor are installed under the viaduct bridge body. Once serious congestion occurs on the viaduct, causing safety problems such as bridge partial load, the monitoring equipment will issue an alarm. The monitoring equipment under the viaduct can also monitor various early warning events such as vehicle impact, support anomaly and expansion joint anomaly. The gas sensor is installed in the gas valve well on the surface, and once the combustible gas is detected, the sensor will immediately alarm.

Viaduct monitoring equipment and gas sensors are all monitoring facilities installed by Hefei City in promoting the lifeline safety project of urban infrastructure. It is understood that Hefei is a pilot city for the urban infrastructure lifeline safety project. Hefei's intelligent urban lifeline safety operation monitoring system covers eight fields: gas, bridge, water supply, drainage, heat, fire protection, water environment, and integrated pipeline corridor, and systematically builds a intelligent urban lifeline safety operation monitoring system. Up to now, about 85,000 sets of front-end sensing equipment such as gas, Bridges and water supply have been deployed, covering 137 Bridges and 7,316 kilometers of pipelines. The data of the front-end sensing equipment is uniformly transmitted to the safe operation monitoring center of Hefei Urban Lifeline Project. Once the data is abnormal, the monitoring center can quickly deal with it.

The person in charge of the Hefei Urban and Rural Construction Bureau said that since the operation of the system, the risk investigation efficiency has increased by about 70%, the accident rate has decreased by about 60%, and the city's "lifeline" has become a "safety belt" for development. The urban infrastructure lifeline safety project has realized the fundamental transformation of urban safety operation management from invisible to visible, from investigation and disposal after engagement to early warning in advance, from passive response to active prevention and control, significantly improved risk prevention and control capabilities, and continued to improve urban safety resilience.

The lifeline safety project of urban infrastructure, which will soon be fully launched, is an important part of urban renewal and the construction of new urban infrastructure. Ni Hong introduced that in the process of promoting the project, China will carry out a general survey of urban infrastructure, establish an urban infrastructure database covering the ground and underground, identify the risk sources and risk points of urban infrastructure, and compile a list of urban safety risks. Promote the construction of supporting iot intelligent sensing equipment, and gradually realize the comprehensive perception, automatic collection, monitoring and analysis of the operation data of urban infrastructure lifeline, and early warning and reporting; Accelerate the integration of urban infrastructure supervision information systems, build a comprehensive urban infrastructure safety operation supervision platform on the urban operation management service platform, and promote the operation of urban infrastructure lifeline "one network management"; We will improve the procedures and methods for emergency response to risks and hidden dangers, fulfill our responsibilities, establish and improve working mechanisms, and effectively prevent and defuse risks.

Tamped digital base

The urban infrastructure lifeline security project is supported by information technologies such as the Internet of Things, cloud computing, and big data to build monitoring Internet of Things, establish a monitoring operation system, and form core capabilities such as regular monitoring, dynamic early warning, accurate traceability, and collaborative disposal. To realize scientific prevention of major safety risks of urban infrastructure lifeline such as gas explosion, bridge collapse, urban waterlogging, pipe network leakage, road collapse, and urban fire.

In the construction of lifeline safety engineering of urban infrastructure, the construction of digital base map is an important premise. Shanghai has focused on strengthening the collection and application of urban infrastructure operation data, continuously promoting the construction of urban management theme databases, and constantly consolidating the digital base for infrastructure operation safety supervision. According to the relevant person in charge of the Shanghai Municipal Housing and Urban and Rural Construction Management Committee, Shanghai relies on the urban information model, integrates a number of technologies such as building information model, geographic information system and Internet of things, promotes the "one map convergence" of urban infrastructure element information, and forms a three-dimensional base map of the fine work information platform of urban management. Basically realized the overall construction of the digital base map of Shanghai's urban infrastructure lifeline.