The system is mainly used for monitoring and warning of natural disasters (wind, rain, earthquakes) and foreign material incursions that endanger the safety of railway operation, and provides information such as disaster warning, speed limit, and outage, and provides a basis for train operation management at the dispatcher. Through signal interlocking and train control system or vehicle scheduling commands, automatic or manual control of vehicle speed is achieved to improve the safety of high-speed train operation.
It is understood that the disaster prevention safety monitoring system has been adopted in high-speed railways and passenger specialties that have opened at speeds of more than 250 kilometers per hour, but the tunnel entrance anti-foreign invasion monitoring network has been installed on only a few sections. The Xiangxi-Chongqing Railway has a total length of about 630 km, of which 21 are tunnels, 290 km long and 172 km long. Of these, there are only 66 special bridges, and the total length of the bridges and tunnels accounts for 73% of the total. The unique geography of the mountains, bridges, and tunnels connected to each other makes the installation of the tunnel entrance prevention and detection system the highlight of the entire disaster prevention and security monitoring system project.
The three companies of the China Railway Electrification Bureau introduced to the chief engineer of the Disaster Prevention and Safety Monitoring Project Department in Fujian. Fujian's “landless terrain†nature has become a roadblock for installation and construction.
Because the tunnel entrance is built on the mountain and the terrain is undulating, the anti-foreign matter invasion and restriction monitoring network designed on the hillside above the tunnel entrance must follow the change of the terrain to change the installation level. In order to ensure the installation accuracy of the anti-foreign invasion monitoring network on the bumpy slopes, engineers and technicians specially designed a measurement and positioning tool to ensure that the installation technology of the tunnel entrance anti-overmold monitoring network meets the standards and ensures the safety of driving.
With the rapid development of national railway construction, the speed of trains continues to increase, people pay more attention to safety topics, and the importance of railway disaster prevention and security monitoring systems has become increasingly prominent.
Turn on disaster prevention monitoring function across Xiangyu Railway
At present, the functional testing of the disaster prevention safety monitoring system under construction by the China Railway Electrification Bureau's three companies (in the Henan unit) is intensifying. The newly-built (Tang) Yutian (Tian) Railway has entered the joint debugging joint trial and is expected to be integrated in late July. Comprehensive debugging of all systems across the board.