沈佳高铁通化西牵引站外部供电工程提前投产

Core Viewpoint - The successful implementation of the 220 kV external power supply project for the Shenjia High-speed Railway's Tonghua West traction station demonstrates effective collaboration and innovative construction methods, ensuring timely progress despite challenging conditions [3][5][7]. Group 1: Project Overview - The Shenjia High-speed Railway is a crucial part of the national "eight vertical and eight horizontal" high-speed rail network, with Tonghua West station being the largest hub along the line, covering a total area of 30,000 square meters [3]. - The project involves the construction of 54.4 kilometers of new 220 kV lines, 150 new towers, and the expansion of three existing 220 kV substations, facing significant construction challenges due to its geographical location [3]. Group 2: Construction Management - The company established a "high-speed rail service special team" and implemented a "1+N" dedicated customer service system, actively engaging in project planning and conducting over 40 site surveys to ensure a solid foundation for the power supply scheme [3]. - Since the official start of construction in November 2024, the company has focused on "precise management, strong innovation, and quality improvement," enforcing strict control measures to enhance safety and quality throughout the construction process [3][5]. Group 3: Overcoming Challenges - The company has adopted a reverse scheduling approach and implemented a "weekly report, daily scheduling" mechanism to address challenges such as high altitude, low winter temperatures, and a short effective working period [5]. - Innovative transportation methods, including the use of "climbing tigers" and large drones, have improved material transport efficiency by 52%, while CO2 blasting technology has facilitated the excavation of frozen soil layers, completing the foundation work for 150 towers in just 80 days [5]. Group 4: Environmental Considerations - The project has minimized deforestation by over 10 hectares through a differentiated approach using "high-low foundations + high towers across trees," while also avoiding precious medicinal plants and ensuring compliance with environmental protection requirements [5].