The transformation of underground pipe networks is an important task in urban renewal this year.
At present, various regions are constantly accelerating the progress of renovation, and various new technologies and new methods are widely used, driving the continuous upgrading of underground pipe network renovation technology and further expanding the market scale.
In the past two days, the drainage pipe network on Yubei Road in Shapingba District, Chongqing has been basically renovated and is awaiting acceptance.
As a project supported by the central government's special fund issuance of 1 trillion yuan in treasury bonds, this project will solve the waterlogging problem that has plagued surrounding residents for many years.
Zhou Hui, the person in charge of the waterlogging control project of the Nankai Crossing in Shapingba District, Chongqing: In the past, the pipe diameter was 0.6 to 0.8 meters. Now the largest diameter of the pipe is 1.8 meters, so its water passing capacity has been improved than before. Probably two or three times.
At present, there are 95 drainage pipe network renovation projects in Chongqing that have received special funds from the issuance of additional government bonds, and 46 of them have started construction.
Among them, in addition to the reconstruction of road sections prone to water accumulation, there are also the reconstruction of many safety hazard points.
This project in Dadukou District, Chongqing collapsed due to rain last year.
The reporter saw inside the pipe that the 3-meter-diameter rainwater pipe had been in operation for more than 10 years. More than 30 meters of the pipe had collapsed, and the remaining part was severely deformed, which could easily cause another collapse.
In order to better complete the transformation and avoid the impact of large-scale excavation on the lives of surrounding residents, various new technologies, new materials and pipeline robots are used on a large scale at this transformation site.
Chen Jianghaonan, technical director of Chongqing Tianan Cyber City Municipal Drainage Pipe Culvert Emergency Rescue Engineering: It is an integrated pipe mechanical spiral winding machine. It wraps a strip-shaped profile in the old pipe through this machine. into a new pipeline to achieve a repair purpose.
The technology is new and the level is high. There are now more than 5,000 companies in my country's underground pipe network reconstruction market, and the development speed is getting faster and faster.
In Xiamen, a company specializing in trenchless pipeline repair technology has been receiving trucks one after another these days. Recently, they have received 16 batches of customers.
Liao Baoyong, Chairman of Anyue Environmental Technology Co., Ltd.: We plan to double the output value in 2024 compared to 2023.
The current factory building is no longer sufficient, and construction of the new factory building should begin in the first half of this year.
From a national perspective, at the current rate of renovation, our country will still renovate more than 100,000 kilometers of underground pipe networks every year in the future. Especially this year, as cities at prefecture level and above comprehensively carry out urban physical examinations, pipe network problems discovered during physical examinations will be resolved at an accelerated pace. , will involve multiple industries such as design, construction, materials, equipment, monitoring and maintenance.
According to preliminary estimates, during the "14th Five-Year Plan" period, the investment in underground pipe network renovation nationwide will exceed one trillion yuan, and the industry has broad prospects for development.