What does the underground pipe gallery look like?

Vehicles shuttle back and forth along the several-kilometer section of Changbin Road in Haikou New Town. The driver can hardly imagine that there is a huge underground world under his wheels. In this space, there are electricity, communications, gas, water supply, Five types of pipelines necessary for urban life including sewage.

On the side of Changbin Road, a building with two floors underground and two floors above ground does not attract much attention. This is the main hub of Haikou Underground Pipe Gallery - Haikou Underground Comprehensive Pipe Gallery Main Monitoring Center , reporters walked into the center and the connected underground pipe corridors to unveil the mysterious underground pipe corridors.

The main monitoring center of Haikou Underground Comprehensive Pipe Gallery has only a small number of staff, and there is no busy scene of people coming and going as expected. In the main monitoring room, a large screen composed of dozens of monitoring windows displays high-definition images of different locations in real time. Staff can monitor the operation of the pipe gallery in high-definition around the clock and quickly deal with emergencies as soon as possible.

Hao Qiang, manager of the Haikou Underground Pipe Gallery Project Department of China Railway Fourth Bureau, introduced that the main monitoring center of Haikou City’s underground comprehensive pipe gallery is positioned as the municipal control center for the city’s underground comprehensive pipe gallery. It is not only responsible for the area and surrounding management It monitors, operates, and maintains the status of the corridor system, and is also responsible for the comprehensive operation and management tasks of the city’s underground comprehensive pipeline corridors. Currently, the first batch has access to the real-time operation status of 6 underground pipeline corridors.

Wang Jungang, chairman and general manager of Haikou Underground Comprehensive Pipe Gallery Investment Management Co., Ltd., introduced that the safety monitoring system of Haikou City’s underground comprehensive pipe gallery is divided into three levels: Municipal-level monitoring center—District-level monitoring center— —The section-level monitoring room can form a monitoring network for the safe operation of the pipe gallery.

He introduced that pipe gallery monitoring requires overall environmental safety, that is, pipeline safety and overall safety of the pipe gallery. Pipeline safety shall be tested by each unit entering the corridor. The overall security of the pipe gallery is divided into security systems, including video surveillance, automatic alarms, high-voltage cable abnormality alarms, infrared collision alarms to prevent outsiders from intruding, water supply pipeline pressure alarms, etc. The drainage system should ensure that the pipes and water pumps are kept dry. The ventilation system is equipped with ventilators in the fire protection zone. The fire protection system is divided into fire zones every 200 meters to monitor the temperature of the cables. The pipe gallery uses a hot aerosol fire extinguishing device. If a fire occurs in an area, the fire door can be closed and the fire is sprayed to extinguish the fire.

Going down the stairs from the main monitoring center of the underground comprehensive pipe gallery, you will enter the Changbin section of the underground comprehensive pipe gallery in Haikou City. Different from the narrow and dirty pipes in the previous impression, the underground pipe gallery here is It is spacious, bright, clean and orderly, and the wide driving lane will be used for inspection vehicles in the future. The reporter did not feel depressed while being underground. The staff said that because it is only for work use, the underground pipe gallery has not yet opened a mobile phone signal.

Hao Qiang told reporters that the Changbin Road pipe corridor is 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 routed separately. No problem at a glance. The gas warehouse and high-pressure warehouse are set up separately to ensure operational safety. It is understood that among the pilot cities across the country, Haikou City took the lead in realizing the introduction of gas pipelines into the corridor.

Liu Guangqi, a senior engineer at the China Urban Planning and Design Institute, told reporters that as cities continue to expand, pipe corridors will play an increasingly important role. They can first solve the traffic congestion problem caused by pipeline maintenance. , pipeline problems can be quickly determined and the maintenance personnel can repair them in the pipeline gallery. This not only facilitates the maintenance and management of pipeline units, but also avoids traffic problems on the ground.

Secondly, to solve the "road zipper" problem, due to the lack of coordination among government departments, management problems often occur and repeated excavations not only cause waste, but also affect the government's credibility. The construction of the pipe gallery will greatly enhance the government's ability to manage public facilities, thereby effectively enhancing the government's credibility.

Thirdly, pipe galleries are also of great benefit to the protection of urban life. In the typhoon-prone area of ??Haikou City, compared with the problems of exposed telephone poles, high-voltage electrical boxes, gas pipelines, and water pipes being cut off in severe weather, water, electricity and other pipelines will be effectively protected after being installed in the corridor, and citizens no longer have to worry Water and electricity were cut off.

When you walk out of the underground pipe gallery, you can hardly see any trace of it on the city horizon. It is slightly different from ordinary roads. The central green belt of Changbin Road is slightly wider. This is where the underground pipe gallery and the above-ground road meet. meeting point.

Hao Qiang introduced that facilities such as ventilation openings, feeding openings, personnel escape openings, and facility maintenance openings are set up not far apart in the central green belt. Among them, the ventilation outlet is 1.5 meters high from the ground and will be integrated with greening and municipal administration in the future; the feeding port will be closed after completion; the personnel escape port will be equipped with a hydraulic manhole cover; and the facility maintenance port will also be closed after the completion of the project.

Wang Jungang said that considering Haikou as a tourist city, the ground nodes of underground comprehensive pipe corridors in important areas of the city all consider the landscaping effect, and the pipe corridor vents and bus booths, rest halls, street sketches, billboards, etc. The combination not only meets the functional requirements of the pipe corridor, but also takes into account the urban landscape and citizen use.

Zhou Jian, director of the Haikou Municipal Administration Bureau, introduced that Haikou Changbin Road is a demonstration project for implementing sponge transformation on a municipal road with an underground comprehensive pipe gallery. The rainwater retained in the road area on rainy days passes through the grass-planted ditch. After 60% is absorbed, the remaining 40% will be recycled through the underground drainage pipe network to maximize the rainwater collection function of the sponge green space during rainfall.