During his inspection in Jiangxi, the general secretary emphasized that "focusing on new requirements such as high-quality development, green development, and low-carbon development, emancipating the mind, forging ahead, making up for weaknesses, and consolidating the foundation and rejuvenating the new". The Lidong reconstruction and expansion project has always adhered to the concept of building a century-old quality project of Ping An, and has accelerated the construction of a strong transportation province with the goal of building a high-quality project that is innovatively led, intensive and efficient, safe and durable, green and low-carbon, intelligent sharing and coordinated development.
Construction, digital empowerment to improve quality and efficiency
Intelligent prefabricated production area, intelligent steel processing and distribution center, intelligent concrete distribution center, Lidong community, intelligent innovation and digital intelligence center. Digital production has made great changes in the former front line of project construction. At the site of the SSZ standard intelligent integrated prefabricated beam plant of the Lidong reconstruction and expansion project, Zhou Huadong of the first branch of the Lidong reconstruction and expansion SSZ standard introduced that the beam factory covers an area of 81 acres, undertakes the production of 2,808 beam plates, 25,906 tons of T-beam steel bar processing, and 90,364 square meters of concrete mixing and transportation. "At present, 8 sets of intelligent production lines have been set up to realize the circular production of steel bar binding, concrete pouring, steam curing, prestressed tensioning, grouting and beam moving prefabrication cycles. Zhou Huadong said. 
As the largest intelligent integrated precast beam factory in Jiangxi Province, compared with the single management mode of the traditional beam factory, SSZ standard intelligent integrated precast beam factory has achieved the improvement of various benefit indicators through efficient intelligent production lines, information collection, visual supervision and management, etc., including an 80% increase in water resource utilization, a 50% increase in the efficiency of various machinery and equipment, a 50% reduction in carbon emissions, a 40% reduction in site savings, a reduction of about 44% in the number of external molds, and a 50% reduction in the number of gantry cranes , the overall production efficiency is increased by about 70%.
The advanced intelligent means effectively make up for the shortcomings and shortcomings of traditional construction and management, and the intelligent integrated precast beam plant plays a positive role in boosting the quality and efficiency of the project.
Walking into the smart exhibition hall of the Lidong Reconstruction and Expansion Project Office, the on-site construction of 11 construction units on the whole line, the dynamic allocation of lane resources, the dynamic allocation of road network traffic flow, rapid rescue coordination, digital twin real-time traffic flow information, and the whole chain of digital management come into view, which is the first "full coverage" digital intelligence center in Jiangxi Province, the system integrates production management, quality control, personnel and equipment positioning, and monitoring, which is conducive to all-round command and dispatch of the project, and has real-time early warning, Analyze the role of construction management to make construction management more efficient.
The system uses core technologies such as the Internet of Things, BIM, big data, and AI to establish a remote data transmission and monitoring system for important and key sites such as intelligent integrated precast beam plants, concrete mixing stations, and steel processing plants. It can automatically monitor key processes, hidden projects and important structural parts, and collect, analyze and alarm relevant data in real time, so as to achieve the management goals of pre-control, in-process monitoring and post-event analysis, and build a "strongest brain" for the project management to summarize data in real time and fully grasp the production process.
Building an intelligent integrated precast beam factory and building a digital intelligence center is a microcosm of the Lidong reconstruction and expansion project's insistence on empowering the high-quality development of the project with digital construction. As the "No. 1 Development Project of Digital Economy in Jiangxi Province", in order to promote the construction of quality projects, the Lidong Reconstruction and Expansion Project adheres to the forefront of innovation and leadership, continues to explore new paths and new models for the construction of smart highways, and actively carries out micro-transformation of equipment, process and construction methods, providing a steady stream of internal power and reliable guarantee for accelerating the promotion of Ping An's centennial quality project.
Carbon reduction and emission reduction, green construction to protect mountains and water
Green is the most beautiful background color for high-quality development. The Lidong reconstruction and expansion project has always adhered to the concept of harmonious coexistence between highways and nature, minimized the interference of project construction on the ecological environment along the line, and taken multiple measures to create a green highway model project of "beauty casting nature, green future".
Guifeng Scenic Area is 1 km away from our bid section, and the road and bridge are built near the national 5A scenic spot, which requires stricter environmental protection measures and higher ecological protection requirements for our construction. "Lidong reconstruction and expansion project B1 bid Wang Jiaozheng said, "Our project department will unswervingly take the road of ecological priority and green development, and persistently promote green development and emission reduction and carbon reduction." 
With a total length of 201 kilometers, the Lidong reconstruction and expansion project passes through many national scenic spots, crosses large rivers such as the Xinjiang River many times, and has dense villages and towns along the route with a relatively high degree of urbanization.
Practice the concept of green and low-carbon, and grasp it from the source. The Lidong reconstruction and expansion project attaches great importance to the ecological site selection of the comprehensive station, and in accordance with the requirements of the construction of the station of "intensive, factory, and informatization", it will build a green and low-carbon industrial center integrating the project site, a new environmentally friendly asphalt mixing center, a fully enclosed concrete mixing center, a dust-removing and environmentally friendly water-stabilized mixing center, an intelligent steel processing and distribution center, a construction site laboratory, a green and low-carbon digital intelligence center, and a Lidong community. 
In order to reduce the pollution caused by production wastewater to the surrounding environment, the sewage treatment system of the innovative plant area separates the concrete into sand, stone, water and dry material through the combination of sand and gravel separator and filter press, and the sand and gravel can be used, and the extruded dry material is used to build the construction road, and the clean water is recycled again to realize the recycling of concrete tailings.
The concept of green environmental protection is not only reflected in the green and low-carbon industrial center, but also in the construction line, the measures of timely regreening after excavation, mud separator, roadbed ecological protection, soft foundation curing technology, carbon dioxide blasting, and the green construction technology is highly integrated into the construction of Meilu Expressway. At the same time, since the project entered the site, more than 40 kilometers of hardened construction auxiliary roads have been built, reconstructed or expanded with the "combination of eternal arrival" as the main starting point, so as to further reduce the occupation of land resources and environmental impact, and create a quality project with internal and external beauty.
During this year's National Day, the average daily traffic volume of the Liyuan to Dongxiang section of the Shanghai-Kunming Expressway was 16More than 560,000 vehicles, the maximum daily cross-sectional flow is 6With more than 760,000 vehicles, it is the high-speed section with the largest traffic volume and the highest proportion of heavy-duty traffic in the province, and it is difficult to ensure safety and traffic at the same time. The safety management office of the Lidong reconstruction and expansion project should be introduced.
In order to effectively solve the traffic safety maintenance work, the project organized all participating units to set up a traffic organization leading group, compacted responsibilities layer by layer, and clarified the responsibilities of each unit, as well as the responsibilities of the full-time person in charge of traffic maintenance and the full-time safety officer. At present, 10 professional traffic maintenance teams, 9 professional maintenance teams, 11 emergency rescue points have been set up, and more than 100 vehicles such as loaders, cranes, and inspection and maintenance vehicles have been set up for traffic safety maintenance work, so as to fully guarantee the normal development of traffic organization and the good traffic environment for the reconstruction and expansion of expressways.
Safety education is an important carrier for the construction of "safe construction site", and the Lidong reconstruction and expansion project has always taken the improvement of personnel's political position and safety awareness as an important part of safety management, regularly studied and judged the safety production situation, and took the Lidong community as the carrier, and vigorously carried out safety education and training through the Lidong lecture hall, safety experience hall, new safety law knowledge competition, safety consultation day, etc., so as to comprehensively improve the safety quality of all employees and create a strong safety atmosphere.
At present, the construction of the Lidong reconstruction and expansion project is in a critical period, and the builders have always practiced the mission of "building transportation that satisfies the people", went all out to promote the construction of the project with a high sense of political responsibility, and made unremitting efforts to accelerate the construction of a strong transportation province.