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The "black technology" in the construction of Chongqing rail transit they built a smart factory for the centralized processing of digital steel in the whole process

author:Hualong Net

Hualong Network - New Chongqing Client November 16, 15:50 (Reporter Dong Jin) In accordance with the requirements of the "Implementation Opinions on Promoting Intelligent Construction" issued by the Chongqing Municipal Housing and Urban-Rural Construction Commission, by 2025, the city's engineering projects will fully adopt the digital construction model, and the construction industry enterprises will fully realize digital transformation and cultivate a number of intelligent construction leading enterprises.

Hualong Network - New Chongqing client reporter learned from the general contracting department of the north extension project of Chongqing Rail Transit Line 18 of China Communications Construction that the automated and information-based steel centralized processing plant built by the project has been officially put into use, and the annual output can reach 100,000 tons. At present, it is the largest and most advanced steel processing plant in the field of rail transit in Chongqing.

The "black technology" in the construction of Chongqing rail transit they built a smart factory for the centralized processing of digital steel in the whole process

The centralized processing plant of automated and informatized steel for the north extension project of Chongqing Rail Transit Line 18 of CCCC has been officially put into use. Hualong Network - New Chongqing client reporter Li Yukun photo

Fast

Place a steel order in the morning and receive it in the evening

The north extension project of Chongqing Rail Transit Line 18 starts from Xiaoshizi Station in the east and reaches Fuhua Road Station (not included) of the first phase of Line 18 in the west, passing through Huguang Guild Hall, Kaixuan Road, Eighteen Ladders, Qixinggang and other places, with a total of 8 stations, all of which are underground stations.

Since the north extension of Line 18 is located in Yuzhong District and Jiulongpo District, crossing the traditional city center with dense buildings and dense skyscrapers, the construction sites are relatively narrow. In general, the construction site area of ordinary rail stations is about 3,000 square meters, while at Qixinggang Station, the narrowest of the northern extension of Line 18, the construction site is only more than 1,400 square meters.

The "black technology" in the construction of Chongqing rail transit they built a smart factory for the centralized processing of digital steel in the whole process

Intelligent steel reinforcement production management system. Hualong Network - New Chongqing client reporter Li Yukun photo

Due to the narrowness of the site, it is extremely difficult to perform high-standard steel processing on site. With the strong support of Chongqing Jiaokai Investment and Chongqing Rail Group, the management team of CCCC has built a digital steel centralized processing smart factory of more than 9,000 square meters in Tengyun Road, Longxing Town, Yubei District, for the deep processing and distribution of steel, profiles, pipes, components and other materials.

It is understood that the management personnel of each construction site place orders online in the morning, put forward demand, and can "receive goods" at night, and at the same time, they can also carry out order management, logistics inquiries and other operations through mobile phones, reducing communication costs and improving management quality.

The "black technology" in the construction of Chongqing rail transit they built a smart factory for the centralized processing of digital steel in the whole process

All finished products in the factory are stacked in detail and neatly according to the project lots. Hualong Network - New Chongqing client reporter Li Yukun photo

High efficiency

Smart device blessing Workers can "take one to ten"

Each bidding section can "receive the goods" in less than a day, which is due to the various domestic leading technologies and equipment selected by the factory, as well as the intelligent steel processing production line supporting the whole line.

Hualong Network - New Chongqing client reporter saw at the scene that in the huge factory, there are only 36 front-line workers and management personnel in total, which is three-quarters less than the previous personnel. Instead, it is intelligent equipment such as CNC rebar bending machine, CNC sawing sleeve grinding production line, CNC vertical rebar bending center and so on.

According to Li Yu, deputy general manager of the general contracting department of the north extension project of China Communications Construction Line 18, the steel centralized processing plant started from the technical upgrading of steel equipment and the whole life cycle control of informatization, and carried out targeted upgrading and optimization on the basis of conventional NUMERICAL control equipment, and the production link was unattended, and the mechanization and reduction effect was remarkable.

For example, steel mesh processing, previously need to rely on people to straighten, shear, lashing, welding and other work, often an assembly line needs seven or eight people to process at the same time; and now the use of CNC steel mesh welding production line, all links are replaced by intelligent equipment, only one person at the end of the production line to package the finished product.

The "black technology" in the construction of Chongqing rail transit they built a smart factory for the centralized processing of digital steel in the whole process

Intelligent and digital product processing improves efficiency and accuracy. Hualong Network - New Chongqing client reporter Li Yukun photo

More precise

Steel error from "cm" to "mm"

The use of intelligent equipment not only improves the efficiency of the centralized steel processing plant, but also makes the accuracy of the material have a "qualitative" change. In the past, by manual production, even if it was a skilled worker, often due to cutting, welding and other reasons, the steel produced also had many errors. Today's mechanized production can reduce the previous "centimeter" error to "5 mm".

The steel centralized processing plant relies on the intelligent control cloud of the Internet of Everything, with the cloud computing decision-making of the total control system, big data collection and analysis, and also realizes the digital management of the whole process of steel processing from production, materials, quality and equipment. Through the information network connection, the information overall scheduling platform is built, and the production and processing order management, the in-and-out management of steel raw materials, the management of incoming and outgoing warehouses of molded steel reinforcement, the analysis of report data and other aspects can be presented in digital form, the resource allocation is more scientific, the problem analysis is more accurate, and the operation management is more convenient.

The "black technology" in the construction of Chongqing rail transit they built a smart factory for the centralized processing of digital steel in the whole process

Workers experience learning site safety measures at the Safety Experience Center. Hualong Network - New Chongqing client reporter Li Yukun photo

In addition, following the principle of functional integration, simple and practical, high-quality and economical, the safety experience center and smart site monitoring center of the Line 18 North Extension Project have been co-ordinated with the steel centralized processing plant, which is divided into six functional divisions: CCCC Culture and Project Overview Comprehensive Exhibition Hall, Party Building Culture Exhibition Hall, Quality Technology Display, Assessment Center, Safety Experience Center, Safety Training Center, and Smart Site Monitoring Center. All workers must pass the safety construction theory and practical examinations such as safety first aid experience and fire extinguishing experience before taking up their posts, in order to obtain the induction certificate and finally hold the certificate.

(This article is from the new Chongqing client APP, please go to the major application markets to download)