一批重点工程取得阶段性进展 为经济社会高质量发展提供强劲动能

Group 1 - The Beijing Subway Line 22 (Pinggu Line) has completed the construction of the lower bridge structure in the Hebei section, marking a significant milestone in the project [1] - The line is approximately 30 kilometers long and includes 5 stations and 6 sections, which will reduce commuting time from Langfang's northern three counties to Beijing's sub-center to as little as 9 minutes [1] - The construction faced challenges due to complex environmental conditions, including liquefied soil layers, but the project team successfully implemented advanced construction techniques [1] Group 2 - The Ningxia-Hunan ±800 kV UHVDC transmission project has officially commenced operation, representing a key project in China's 14th Five-Year Plan for power development [2] - This project is the first approved UHV transmission corridor primarily for transporting renewable energy from the "Shagehuang" wind and solar base, with a total investment of 28.1 billion yuan [2] - The project enhances Ningxia's external transmission capacity to 20 million kilowatts, significantly improving the region's ability to utilize renewable energy [2] Group 3 - The Yukun High-speed Railway's key control project, the Binghui Tunnel, has successfully been completed, marking the first tunnel over 20 kilometers to be finished on the line [2] - The tunnel, located in Yunnan Province, utilized innovative construction methods to manage complex geological conditions and reduce risks [2] - With the completion of the Binghui Tunnel, 85% of the tunnels in Yunnan for the Yukun High-speed Railway have been completed, which is a crucial part of China's "eight vertical and eight horizontal" high-speed rail network [2]