The underground pipe network performed "minimally invasive surgery" and solved the problem of dripping dripping in 6 hours

The construction staff sent the soft tube into the pipeline. Reporter Yang Sihan Photo

The client of the Yangtze River Daily, July 19 (Reporter Yang Sihan Correspondent Guo Yujun) The underground pipe network restoration can also be completed without breaking the road. On the night of July 18th, a "minimally invasive surgery" under the intersection of Zhongshan Avenue and Sanyang Road in Jiang'an District and Sanyang Road was repaired to 6 hours of underground pipe network that originally needed for several days to effectively avoid the road opening. Dig, break the road.

At 10 pm, a multi -functional vacuum dirt -absorbing car drove a double flash and stopped at the intersection of Zhongshan Avenue and Sanyang Road. On behalf of the owner of the Jiang'an District Water and Lake Bureau, Gao Xiangzheng and the construction unit carried out dredging operations on the underground pipe network of the office to prepare for the pipeline of the night.

"In May of this year, the River Bank District of Wuhan launched the renewal and reconstruction project of drainage facilities in the historical style area. It was repaired for nine important drainage pipes including along the river, Lihuangpai Road, Jianjie Street, Dazhi Road, and Sanyang Road in the region." Gao Xiang said Because the underground pipelines of the nine roads are all involved in the main roads of transportation. If the traditional excavation repair mode is adopted, the road construction must be closed. It is time -consuming and laborious, and it will also have a great impact on citizens' travel. "In order to minimize the impact, this time we specifically introduced the technique of ultraviolet light curing restoration technology, and the Beijing Hubei Best Construction Co., Ltd., which has strong domestic construction capabilities, is responsible for implementation. The section to be repaired late belongs to Sanyang Road, with a length of about 32 meters and a diameter of 1 meter. The repair time is related to the diameter and length of the tube section. This section is expected to be about 6 hours. "

Robot shooting internal screens. Reporter Yang Sihan Photo

The traffic vehicles on Sanyang Road around 11 o'clock gradually decreased. In order to avoid traffic accidents during construction, Gao Xiang scheduled construction operators to support the protective fence on both sides of the construction area and surroundings, setting up a warning sign, and turning on the warning lights.

The dredging of the pipeline lasted for nearly an hour. At this time, the pipelines had been blocked and blocked to keep the space inside the pipeline in a relatively clean and dry environment. The construction staff then pulled the imported soft pipeline required for the curing of ultraviolet light to curing the ultraviolet light to prepare for repair.

Equipment vehicle. Reporter Yang Sihan Photo

"UV light curing repair process is pulled into an imported glass fiber lining in the old pipeline. The new pipes are swollen through the air pump inflatable, and the inner wall of the pipeline is tightly fitted. Fiber lining from flexible to rigid transformation, thereby repairing the damaged inner wall. "Xu Xin, the technical person in charge of the Wuhan Branch of Beijing Northern Volleyball Construction Co., Ltd., told the Yangtze River Daily that the new type of soft pipeline can be hardened by UV light. Effectively cause the old pipeline's corrosion, wrong mouth, disconnect, leakage and other issues to be cured. Not only will it improve after the strength and smooth coefficient repair, it also increases the speed of the water flow, which can play a positive role in flood control.

The reporter saw at the scene that the width of the soft pipeline was 1 meter and the thickness was about 1 cm. The construction staff needed to support it and cooperated with the relevant equipment to slowly send it into the tube. Wuhan, who lasted for many days, is still sultry and unbearable even at night. After a while, everyone's face was covered with sweat.

After all soft pipes entered, I saw two construction personnel wearing equipment such as protective clothing, protective masks, and slowly down from the port wells to seal and inflatable soft pipes. After the wall of the tube, put the ultraviolet light in it and fix it.

monitoring platform. Reporter Yang Sihan Photo

"All our inflatable, curing, monitoring and other equipment are integrated on the equipment car, and any situation in the tube can be feeded to our monitoring platform in real time through the camera of UV lamps." It also reduces the frequency of personnel to the well and improves construction security.

At 5 am, the sky was slowly lit. The soft pipelines of the section were all solidified. The construction staff put the robot in it for the final inspection. After confirming that it was correct, the pipe was removed, and the pipeline returned to normal drainage. A minimally invasive surgery ended, everything seemed to have nothing, and the fixed pipeline had a new beginning.

"The underground pipe network is the lifeline of the city, just like a spider web. It is densely distributed in the underground space. You can quickly repair the hidden danger to the hidden dangers without the "open belly" of the pavement. After the completion, at that time, it will effectively improve the ability to collect rainwater and sewage in the area and water drainage and waterlogging prevention capabilities.

【Edit: Wang Yujin】

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