China News Service, Huainan, Anhui, September 11 (Liu Honghe and Feng Jia) "In my impression, the factory area that uses concrete and steel as raw materials must be a scene of dust on a sunny day and mud on a rainy day, but it is very clean. Neat." On September 10, Zhang Suqin, Director of Civilization Creation and Guidance Office of Hefei City, Anhui Province, visited Liugang Town, Huainan City, Anhui Province while visiting the shield segment manufacturing base of China Railway Fourth Bureau Urban Rail Company.
According to reports, as a “benchmarking” member company of the world’s top 500 companies-China Railway Corporation Limited, China Railway Fourth Bureau has always been keeping up with the trend of industrialization, focusing on promoting the transformation and upgrading of production and construction methods, and fully implemented operation standardization, construction mechanization, and construction mechanization. The "five modernizations" management of production factoryization, management informationization, and green process.
At present, it is the only fully enclosed shield tunnel segment water-cultivation pond in Anhui Province.
Photo by Liu Yucai
"In recent years, with the transformation and development of the national industrial system and the deep integration of the industrial structure, the trend of industrial factoryization, automation, and intensification has become increasingly prominent, and the adoption of new technologies and new processes in the construction industry has shown rapid changes. As engineering construction An important part of the shield segment is low mechanization, low production efficiency, high processing cost, high labor intensity, difficult control of processing quality and time schedule, high waste of materials and energy, many potential safety hazards, large footprint, and noise Large shortcomings have restricted the improvement of project quality to a certain extent." said Wang Zhicheng, deputy general manager of China Railway Fourth Bureau Group, "The start of the shield segment manufacturing base created the construction of rail transit in Hefei, and the concentration of shield segments on the whole line." The new model of "Intelligent Manufacturing" has important strategic significance for Hefei Rail Transit Line 8 and the entire Hefei subway construction."
It is understood that the shield tunnel segment manufacturing base of China Railway Fourth Bureau is located in Liugang Town, Huainan, Anhui, covering an area of 56666 square meters. Area, finished product storage area, etc.
It can produce pipe joints, pipe corridors, subway track slabs and auxiliary concrete precast products.
The picture shows an intelligent wiping robot.
Photo by Liu Yucai
"The subway has the characteristics of fast speed, large transportation volume, safety, etc., and it is a key livelihood project in urban construction. As the'first safety barrier of the subway'-the quality of the shield segment has become the safety of the subway tunnel. Strong support.” said Tang Shu, general manager of the Urban Rail Branch of China Railway Fourth Bureau, “At present, our automated production line is equipped with 24 sets of segment grinding tools, and the annual production capacity reaches 18,000 ring shield segments. The arc surface automatic wiper robot greatly improves the work efficiency while greatly reducing the damage rate of the finished shield tube segment."
The "prefabricated components intelligent manufacturing information management system" adopted by the base gives each prefabricated component a unique ID card (RFID + two-dimensional code + NFC), monitors every link of production, intelligently collects production quality data, and effectively improves product quality assurance data organization Efficiency, to achieve product quality control and traceability throughout the process.
The visual big data brain center and the WeChat official account information push center provide technical support for the construction of smart factories with automatic data collection and intelligent production management, and greatly improve the market competitiveness of enterprises.
A staff member is welding the steel bars of the segment.
Photo by Liu Yucai
"At present, we have increased the production efficiency of tube segments by about 4 times through a large number of intelligent equipment, saving about 60% of labor force, about 50% of intelligence rate, and 100% of qualified rate of tube segment quality." Tang Shu said, "this time The 2021 “Quality Month” theme event held by the Hefei Railroad Quality Safety Station Party Building Alliance of “Intelligence Leading Quality for the Future” is to control production safety and quality, build the “first safety barrier” of Hefei Metro Rail Transit, and help Hefei The rapid development will benefit all Hefei citizens." (End)