On the side of Changbin Road, a building with two floors underground and two floors above ground is rarely visited. This is the main hub of Haikou underground pipe gallery-Haikou underground common ditch main monitoring center. The reporter walked into the center and the connected underground pipe gallery to uncover the mysterious underground pipe gallery.
There are not many staff in the main monitoring center of Haikou underground common ditch, and there is no expected busy scene of people coming and going. In the main monitoring room, a large screen composed of dozens of monitoring windows displays high-definition pictures in different positions in real time, and the staff can monitor the operation of the pipe gallery in high-definition all day and deal with emergencies quickly in the first time.
Hao Qiang, manager of Haikou Underground Pipe Gallery Project Department of China Railway Fourth Bureau, introduced that the main monitoring center of Haikou underground common ditch is located as the municipal control center of the whole city, which is not only responsible for the state monitoring, operation and maintenance of the pipe gallery system in the region and surrounding areas, but also undertakes the comprehensive operation and management tasks of the underground common ditch in the whole city. At present, the first batch of underground pipe gallery connections run in real time.
Wang Jungang, Chairman and General Manager of Haikou Underground Common Trench Investment Management Co., Ltd. introduced that the underground common trench safety monitoring system in Haikou City is divided into three levels: municipal monitoring center-district monitoring center-road monitoring room, which can form a monitoring network for the safe operation of pipe corridors.
He introduced that the monitoring of the pipe gallery requires the overall environmental safety, that is, the pipeline safety and the overall safety of the pipe gallery, and the pipeline safety is tested by each gallery-entering unit. The overall security of the pipe gallery is divided into security systems, including video monitoring and automatic control.
Alarm, high-voltage cable abnormal alarm, infrared collision alarm to prevent outsiders from invading, water supply pipeline pressure alarm, etc. The drainage system shall ensure that the pipes and pumps are kept dry. The ventilation system is equipped with a ventilator in the fire area. fire brigade
The system divides a fire zone every 200 meters to monitor the cable temperature, and the pipe gallery adopts a hot aerosol fire extinguishing device. When a fire breaks out in an area, the fire door can be closed and then sprayed to extinguish the fire.
Walking down the stairs from the main monitoring center of the underground common ditch, we walked into the Changbin section of the underground common ditch in Haikou City. Different from the narrow and dirty pipes in the previous impression, the underground pipe gallery here is spacious and bright, neat and orderly, and the wide driveway will use inspection vehicles in the future. The reporter is underground, but he doesn't feel depressed. According to the staff, the underground pipe gallery is only used for work, so the cell phone signal has not been opened yet.
Hao Qiang told reporters that the pipe gallery of Changbin Road was designed for three warehouses, namely, a comprehensive warehouse, a high-pressure warehouse and a gas warehouse. In the comprehensive warehouse, power cables, communication cables and water pipes are all wired separately, so it is clear at a glance whether there are any problems. The gas bin and the high-pressure bin are set separately to ensure safe operation. It is understood that among the pilot cities in the country, Haikou City is the first to realize the gas pipeline into the corridor.
Liu Guangqi, a senior engineer of China Urban Planning and Design Institute, told the reporter that with the continuous expansion of urban scale, pipe corridors will play an increasingly important role. First of all, it can solve the traffic congestion caused by pipeline maintenance, and the location of pipeline problems can be quickly determined, and maintenance personnel can carry out maintenance in the pipe gallery, which not only facilitates the maintenance and management of pipeline units, but also avoids the traffic problems on the ground.
Secondly, to solve the problem of "road zipper", due to the lack of coordination between government departments, there are often management problems and repeated excavation, which not only causes waste, but also affects the credibility of the government. After the completion of the pipe gallery, the government's ability to manage public facilities will be greatly enhanced, and the government's credibility will also be greatly improved.
Thirdly, the pipe gallery is also of great benefit to the protection of urban life. In the typhoon-prone area of Haikou City, compared with the problem of bare telephone poles, high-voltage boxes, gas pipelines and water pipes being cut off in bad weather, the water and electricity pipelines will be effectively protected after entering the corridor, and citizens will no longer worry about water and electricity cuts.
Walking out of the underground pipe gallery, there is almost no trace of it on the city horizon, which is slightly different from ordinary roads. The central green belt of Changbin Road is slightly wider, which is the intersection of underground pipe gallery and above-ground road.
Hao Qiang introduced that the central green belts are not far apart, and there are ventilation openings, feeding openings, personnel escape openings, facilities maintenance openings and other facilities. Among them, the height of the vent from the ground is 1.5 meters, which will be combined with greening and municipal administration in the future; The feed inlet will be closed after all projects are completed; Provide hydraulic manhole cover for personnel to escape; After the project is completed, the facility manhole will also be closed.
Wang Jungang said that considering Haikou is a tourist city, the ground nodes of underground common ditches in important urban areas all consider the landscaping effect, and the combination of pipe gallery vents with bus kiosks, lounges, street sketches and billboards not only meets the functional requirements of the pipe gallery, but also takes into account the urban landscape and the use of citizens.
Zhou Jian, director of Haikou Municipal Administration Bureau, introduced that Changbin Road in Haikou City is a demonstration project of sponge transformation of municipal roads by using underground utility tunnel. 60% of the rainwater left on the rainy road surface will be absorbed by the grass planting ditch, and the remaining 40% will be recovered by the underground drainage pipe network, so as to maximize the rainwater collection function of the sponge green space during rainfall.