Intelligent robot performs "minimally invasive operation" for underground network management, the largest drainage network repair project in China, and new technology overcomes the construction problem of "rifling"

Fuzhou, Jan. 3 (Wu zhenzeng Haibo reports) in the largest drainage pipe network restoration project in China - Fuzhou urban rainwater and sewage pipe network restoration project, the construction and installation company of China Railway 18th Bureau Group solved the construction problem of "rifling and breaking belly" by using intelligent robots to perform "minimally invasive operation" on the sewage pipe network.

rainwater and sewage pipe network restoration project in four main urban areas of Fuzhou City reaches 2522km, mainly for the investigation, transformation and restoration of rainwater and sewage connection port and municipal drainage pipe network in Fuzhou City. Among them, the rainwater and sewage pipes in Lianban area, which are constructed by China Railway 18th bureau group, are about 480km in total, which is the largest construction area and the highest construction intensity among the five bid sections. Hong Tao, project manager of Fuzhou pipe network of construction and installation company of

China Railway 18th bureau group, introduced that in order to practice "green water and green mountains are golden mountains and silver mountains", they changed the old "rifling and breaking belly" type road sealing and large excavation and pipe replacement, and actively used new technology and new technology to carry out "minimally invasive operation" on urban underground pipe network. Through the introduction of a small, mobile and flexible pipeline closed-circuit television detection system, a micro intelligent "robot" is drilled into the narrow and dark drainage network to conduct a comprehensive "physical examination" of the pipeline. Then according to the characteristics of "disease source", relying on the domestic leading CIPP UV curing, local resin curing, expansion tube replacement method, etc., the "point-to-point" precise positioning is carried out, and the "Zero Excavation" repair of the pipeline is carried out by using the expansion tube replacement method, local field curing and other new technologies. A 6031 a 6031 "micro robot" shows its strength in the narrow and densely distributed underground pipe network, removes obstacles such as tree roots through "cutting artifact", pulls the expansion air bag with special fiber cloth into the pipe, solidifies the fiber cloth at the leakage place, pastes "repair sticker", and realizes accurate repair. It can not only reduce the quantities and construction risks brought by pipeline excavation, but also can be adjusted and controlled at any time, and the construction process is greatly simplified. " Li Ming, deputy general manager of Jian'an company of China Railway 18th bureau group, said in an image. This technology not only occupies a small construction area and has little impact on road traffic, but also greatly shortens the construction period, prolongs the service life of the lining pipe and makes the quality more reliable.

through the trenchless repair technology, the "focus" of the pipe network has been effectively removed, which solves the problem of "black and smelly water body" blocking and leakage caused by the rupture and deformation of the previous underground pipe network. The environmental quality of the urban area has been significantly improved, which provides a strong guarantee for Fuzhou to promote the comprehensive treatment project of water system. Fuzhou will basically complete the repair of drainage pipe network in four urban areas by 2020.