Source: Economic Daily
On the remote central control screen of the headquarters of China Railway 18th Bureau Group Co., Ltd. (hereinafter referred to as "China Railway 18th Bureau") in Jinnan District, Tianjin, the reporter saw that more than 1,600 builders stuck to the front line and were full of enthusiasm at the construction site of Xiaoqinghe Project in Zhuozhou, Hebei Province, hundreds of kilometers away. Thanks to the efforts of the construction staff, the construction of the 10-meter-high concrete retaining wall has been completed, and a flood control safety barrier has been built.
Since its establishment 66 years ago, China Railway 18th Bureau has given full play to the advantages of the whole industry chain and intensively cultivated in the field of infrastructure construction such as highways, railways, rail transit, urban pipe corridors, and airports. In particular, in the past 10 years since the implementation of the Beijing-Tianjin-Hebei coordinated development strategy, the company has continued to make efforts in the field of infrastructure, participated in the construction of nearly 180 kilometers of railways, more than 100 kilometers of urban rail transit, and nearly 120 kilometers of highways, and participated in the investment and construction of 2 airports and hundreds of livelihood projects, becoming a pioneer enterprise in the coordinated development of Beijing-Tianjin-Hebei.
Concentrate on protecting people's livelihood
Erwangzhuang Reservoir in Baodi District, Tianjin, the water surface is rippling, and the shore is full of greenery. In June last year, the Baodi River Water Supply Project of the Middle Route of the South-to-North Water Diversion Project, which was participated by the 18th Bureau of China Railway, officially passed the water acceptance. In the past year, Baodi District has realized the water supply from a single source of water to a dual water source of Luan and the river.
In the past, the towns in Baodi District were limited by water sources, and their water supply relied on local groundwater and some water sources for a long time. With the continuous advancement of the coordinated development of Beijing-Tianjin-Hebei, many enterprises have settled in the Beijing-Tianjin Zhongguancun Science and Technology City, and the water consumption has gradually increased, and in 2020, Tianjin invested 680 million yuan to start the Baodi River Water Supply Project of the middle line of the South-to-North Water Diversion Project.
"The biggest technical difficulty of the project is crossing the Luan Nullah. At that time, the distance between the top of the pipe jacking pipe and the bottom of the open channel was only more than 2 meters, and if the jacking was too fast, it was easy to cause water permeability; If the push is too slow, it is easy to cause collapse. In order to reduce geological disturbance and ensure safe operation, we strictly control the pushing speed and the direction of pipe jacking, and set up more than 10 monitoring points on both sides of the nullah to carry out real-time monitoring and early warning, and build a safe construction defense line. Wang Qiang, project manager of the Baodi River Water Supply Project of the South-to-North Water Diversion Project of the 18th Bureau of China Railway, said.
Since the start of the project, the project team of the fourth company of China Railway 18th Bureau has intensified its work to solve the problem of crossing 180 meters of DN1600 reinforced concrete casing at a depth of about 12.5 meters, and connecting the water supply pipeline to the Dongshan Water Plant plant area through the Luan Nullah and Baobai Highway in turn, ensuring the smooth water flow of the project.
"With the double water guarantee, the local people have realized the transformation from 'having water to eat' to 'eating good water', and their sense of happiness is getting stronger day by day, and at the same time, the ecological environment of the town has been greatly improved." Sun Fuli, a villager in Donglaokou Village, Dabai Town, Baodi District, said.
In the past 10 years, China Railway 18th Bureau has undertaken and participated in the construction of the largest rural vacuum negative pressure sewage centralized treatment system in the Beijing-Tianjin-Hebei region, Tianjin Zaojia Village Wetland Water Township Project, Ninghe District 2019 Rural Domestic Sewage Treatment Project, Binhai New Area Long-term Housing and Old Community Renovation and other hundreds of projects.
Technological progress solves problems
In 2023, focusing on the problem of the construction of the subway project of Xiawafang Station, Hexi District, Tianjin, the deepest subway station in the soft soil area, the construction team of China Railway 18th Bureau will work together to tackle the problem. "Shimowafang Station is a five-story underground island platform station. In the construction of the main body of the station, the project team used advanced technologies such as automatic analysis technology and ultrasonic testing to control the overall horizontal displacement and settlement of the station within millimeters, which provided successful experience for the construction of ultra-deep subway stations under the condition of large-scale soft soil foundation. Wang Chang, the person in charge of the Tianjin Metro Line 8 project of China Railway 18th Bureau, said that on January 30 this year, the main structure of Wafang Station under Tianjin Metro Line 8 was completed 30 days ahead of schedule, creating favorable conditions for ensuring that the line was opened and operated on schedule.
"Technological innovation is the core of the development of infrastructure enterprises. China Railway 18th Bureau has always adhered to the support and guidance of scientific and technological innovation, continued to promote technical research and product upgrading in advantageous professional fields, and built professional core technology advantages. At the same time, we will vigorously promote advanced technology, management experience and process construction methods, increase technical research, solve on-site construction difficulties and pain points, and continue to help the integrated development of Beijing-Tianjin-Hebei transportation with scientific and technological innovation. Yan Guangtian, Secretary of the Party Committee and Chairman of China Railway 18th Bureau Group, said.
Whether it is in the field of people's livelihood projects or road traffic infrastructure, technological innovation has provided strong support for China Railway 18th Bureau to break through various problems and safe production in construction. In recent years, the 18th Bureau of China Railway has actively played a driving role in scientific and technological innovation, increased investment in scientific and technological innovation and research and development in railways, bridges, mountain tunnels, urban rail transit, municipal, roads, public buildings and other fields, promoted the application of digital and intelligent technologies and equipment, and obtained a total of 171 technological innovation achievements and 2,077 patents, providing strong scientific and technological support for the coordinated development of Beijing-Tianjin-Hebei.
Intelligent construction improves efficiency
Intelligence and digitalization have played an important role in promoting the transformation and upgrading of China Railway 18th Bureau. On June 27 this year, Xiong'an High-speed Railway Co., Ltd. was responsible for the construction, and the first four bids weighing about 700 tons of box girders in front of the Hebei section of the Xiongxin High-speed Railway Station undertaken by China Railway 18th Bureau were successfully paved, marking the beginning of the construction of the bid section from the substructure construction to the superstructure construction, and officially entered the box girder laying stage.
Yu Lepeng, the person in charge of the four-standard paving in front of the Hebei section of the Xiongxin high-speed rail station of China Railway 18th Bureau Group, pointed to a red transport frame machine dozens of meters high and told reporters: "In the past, there was no such advanced equipment, and the box girder must be moved smoothly to the erection beam operation site by a crane, and then erected by workers, the construction difficulty is complex, and the efficiency is not high. With the all-in-one machine, man-hours are reduced by at least half. ”
In the process of prefabricating box girders, the project team of China Railway 18th Bureau also introduced a smart beam yard collaborative management platform system to comprehensively monitor the construction processes such as concrete control and automatic processing of steel bars, which greatly improved production efficiency.
Changcheng Zheng of the Xiongxin High-speed Railway Fuping Beam Yard of China Railway 18th Bureau Group introduced: The so-called smart beam yard is mainly through the integration of advanced technologies such as the Internet of Things, big data, and artificial intelligence to realize the intelligent and refined management of the whole process of prefabricated box girder production. The wisdom is mainly reflected in its digitalization, automation, intelligence, collaboration and data-driven aspects, which work together to improve the production efficiency of the prefabricated box girder and ensure the quality of the box girder.
In terms of promoting the digital transformation of the entire group company, China Railway 18th Bureau has been sparing no effort. Since 2018, China Railway 18th Bureau has established a research and development center for building information model technology. With the help of new digital and intelligent technologies, a total of 45 projects have been promoted in the fields of railways, bridges, tunnels, urban rail transit, municipal, roads, public buildings, etc., and a number of benchmark projects have been completed. After improvement and innovation, the R&D center has formed a relatively complete digital and intelligent application system, technology system, R&D system and talent system.
In recent years, China Railway 18th Bureau has made practical moves and achieved practical results in promoting digital, intelligent and intelligent management. By the end of 2023, the company has won a total of 77 national, provincial and industry awards in the field of digitalization and intelligence, and many project results have been released and exchanged in the industry.
Huang Xin, general manager of the Science and Technology Innovation and Digitalization Department of China Railway 18th Bureau, told reporters: "Intelligent construction is a new construction mode formed by the deep integration of modern information technology and advanced construction technology dominated by industrial construction. The 18th Bureau of China Railway is promoting informatization, digital construction, intelligent and less manpower production, promoting new processes, new construction methods and new tooling, and actively expanding the informatization and digital construction and application of construction and production lines, so as to empower the high-quality development of enterprises with the digital transformation of construction management. (Source of this article: Economic Daily Reporter: Zhou Lin)