April 27, 2025 is a milestone day for the construction of the Liuwu Railway. On this day, the DK35+670 repeater site, which was invested and constructed by Guangxi Transportation Investment Group, constructed by Liuzhou Construction Department of China Railway Nanning Bureau Group Co., Ltd., and undertaken by the project management department of LWZH-1 section of the newly-built Liuwu Railway of China Railway Third Group Electric Engineering Co., Ltd., was successfully completed with the last bolt tightened, and the first unit combination angle steel tower on the entire line was successfully built. The construction of this 40 meter tall "steel giant" is like a brilliant star, shining with a unique light in the construction journey of the Liuwu Railway, and has had a profound impact on the Liuwu Railway and even broader fields。

The impact on the construction of Liuwu Railway itself

• This marks a breakthrough in the construction of communication networks: Communication towers are the key infrastructure of railway intelligent communication networks. The completion of the first communication tower marks a new stage of comprehensive construction for the intelligent communication network construction of Liuwu Railway, from the planning and design stage. It is an important starting point for the construction of the three-level digital neural network of "station section hub" on the Liuwu Railway, providing a solid support platform for the installation and debugging of subsequent communication equipment, and laying the foundation for the integration of eight functional modules such as train dispatching system, disaster warning system, and passenger service system. It is a key step in building a new benchmark for intelligent operation and maintenance of railways in southwestern mountainous areas.

Provide samples and technical templates for subsequent tower construction: As a "sample project" for the construction of 31 communication towers in the LWZH-1 section of the Liuwu Railway, the tower body adopts BIM 3D modeling to optimize load distribution, and ensures millimeter level accuracy through factory prefabrication production. All components, from angle steel cutting to connecting plate drilling, are strictly processed according to high standards. Its innovative mortise and tenon connection structure is different from the traditional on-site welding process of iron towers. It achieves modular and rapid assembly through precise interlocking of prefabricated components, which not only improves construction efficiency by 40%, but also achieves industry-leading seismic and windproof performance. These advanced technologies and construction techniques provide a replicable "Liuwu Plan" for the subsequent construction of iron tower clusters, which helps to ensure the quality and efficiency of subsequent iron tower construction, reduce construction risks and costs.

Accelerate the construction progress of the Liuwu Railway communication project: The successful assembly of the first communication tower greatly boosted the morale of the construction team and provided valuable experience and confidence for the construction of the entire communication project. It enables builders to become more familiar with the construction process and technical points, better organize and coordinate resources, and optimize construction plans. At the same time, the completion of the first tower has also created favorable construction conditions for subsequent tower construction, such as the repair of construction access roads and the planning of material storage areas, which can be improved and optimized on the basis of the first tower construction, thereby accelerating the construction progress of the entire communication engineering and laying a solid foundation for the joint commissioning and testing of the Liuwu Railway next year.

The impact on railway communication system

• Improving the stability and reliability of communication systems: Railway communication systems are crucial for the safe operation of trains, and communication towers, as the supporting platform for wireless communication systems, directly affect the quality and performance of communication signal transmission. The first communication tower of Liuwu Railway adopts advanced design and construction technology, which has good seismic and windproof performance and stability, and can maintain stability in various harsh natural environments, providing a reliable installation foundation for communication equipment, reducing the risk of communication interruption or signal attenuation caused by tower shaking, tilting and other problems, thereby improving the stability and reliability of the entire railway communication system, ensuring that trains can receive and send various instructions and information in a timely and accurate manner during operation.

• Providing guarantee for high-speed data transmission: With the development of railway intelligence and informatization, higher requirements have been put forward for the data transmission capability of communication systems. The three-level digital neural network of "station section hub" being developed by Liuwu Railway Communication Engineering requires the transmission of a large amount of train operation data, video surveillance data, passenger information, etc. The completion of the first communication tower provides conditions for the installation of high-performance communication antennas and transmission equipment, which can support signal transmission at higher frequencies and larger bandwidths, meet the high-speed data transmission needs of railway communication systems, and provide strong communication support for intelligent train scheduling, disaster warning monitoring, passenger information services, and other functions.

• Optimize communication network coverage: The terrain along the Liuwu Railway is complex, and there may be sections such as mountainous bends, tunnels, and road cuts that are prone to forming weak communication fields and blind spots. The reasonable layout and construction of communication towers can effectively solve these problems. By constructing towers in suitable locations and installing directional or omnidirectional antennas, the coverage range of communication signals can be expanded, communication blind spots can be eliminated, and full coverage of wireless train dispatching field strength along the railway can be achieved. This ensures that trains can maintain good communication with the dispatching center at any location, improving the safety and efficiency of railway transportation.

The impact on the development of construction technology

• Promoting innovation in construction technology for railway communication towers: The first communication tower on the Liuwu Railway adopted various innovative technologies during the construction process, such as BIM 3D modeling to optimize load distribution, factory prefabrication production, and mortise and tenon connection structures. The application of these technologies not only played an important role in the construction of the Liuwu Railway, but also provided new ideas and directions for the development of railway communication tower construction technology. For example, the application of BIM technology in tower design can more accurately simulate the stress situation of the tower under different working conditions, optimize structural design, and improve the safety and economy of the tower; Prefabricated production in factories can ensure the machining accuracy and quality of components, reduce the workload and construction time of on-site construction, and improve construction efficiency; The innovation of mortise and tenon connection structure provides a more convenient and efficient way for the installation and disassembly of iron towers, while also improving the seismic and windproof performance of iron towers. The successful application of these technologies is expected to be widely promoted and applied in the future construction of railway communication towers, promoting continuous innovation and development of construction technology.

• Providing technical reference for similar projects: The construction experience of the first communication tower in LWZH-1 section of Liuwu Railway can provide valuable technical reference for other railway communication projects and similar high-rise structure construction. There are many aspects worth learning from, including design concepts, construction techniques, and quality control. For example, how to ensure the stability of the tower foundation and the overall performance of the tower when dealing with complex geological conditions and harsh natural environments; How to conduct quality inspection and acceptance when adopting new materials and technologies. These experiences can help other projects reduce technical risks, improve project quality, shorten construction cycles, and reduce construction costs.

Impact on local economic and social development

Promote economic development along the Liuwu Railway: Liuwu Railway is an important conventional railway channel from the southwest region to the Pearl River Delta in the national "Medium and Long term Railway Network Plan", and is a regional trunk railway that balances passenger and freight transportation. The completion of the first communication tower is an important progress in the construction of the Liuwu Railway, which will help promote the early completion and opening of the railway. After the completion of the railway, it will effectively alleviate the tight capacity of the national railway regional network, shorten transportation distance, reduce transportation costs, promote economic exchanges and cooperation between Guangxi and the Pearl River Delta region, drive resource development, industrial development, and tourism prosperity in the areas along the line, and inject new impetus into local economic development.

• Drive the development of related industries: The construction of communication towers involves multiple related industries, such as steel, building materials, communication equipment manufacturing, power supply, etc. The completion of the first communication tower will directly drive the development of these industries, increase the demand for related products and services, promote the coordinated development of upstream and downstream industries, and create more employment opportunities and economic benefits for the local area. For example, the construction of iron towers requires a large amount of steel and building materials, which will stimulate the production of local steel and building materials factories; The installation and debugging of communication equipment require professional technicians and equipment, which will drive the development of the communication equipment manufacturing and installation debugging industry; At the same time, the operation of the iron tower requires a stable power supply, which will also promote the development of the local power industry.

• Enhance the level of local infrastructure and social image: As an important component of modern communication infrastructure, the construction of communication towers will not only help improve the communication network along the Liuwu Railway, but also enhance the overall infrastructure level of the local area. Good communication infrastructure is an important condition for attracting investment, promoting economic development, and improving residents' lives. In addition, the first communication tower of Liuwu Railway adopts advanced design and construction technology, with high quality and appearance. Its completion will also become a landmark building in the local area, showcasing the achievements of local transportation infrastructure construction and technological innovation, and enhancing the local social image and reputation.

The construction of the first communication tower in the LWZH-1 section of the Liuwu Railway has significant impacts in multiple aspects. It is not only an important milestone in the construction of the Liuwu Railway, marking a breakthrough in communication network construction, providing a model and technical support for subsequent projects, and accelerating the progress of the project; At the same time, it plays an indispensable role in improving the performance of railway communication systems, promoting construction technology innovation, and fostering local economic and social development. With the successive construction of communication towers and the continuous improvement of communication networks, the Liuwu Railway will gradually become a modern intelligent railway, building a more convenient and efficient bridge for communication and cooperation between the Southwest region and the Pearl River Delta region, and making important contributions to regional economic development and social progress. We have reason to believe that with the support of infrastructure such as communication towers, the Liuwu Railway will usher in a better future, driving new leaps in economic prosperity and social development along the route.