CRCC(SH:601186) Zhong Guo Xin Wen Wang·2025-09-30 12:04Core Viewpoint - The completion of the Sanguoshui Grand Bridge marks a significant milestone in the construction of the Yukun High-Speed Railway, which is expected to enhance transportation efficiency and promote economic development along the route [1][3]. Group 1: Project Details - The Sanguoshui Grand Bridge, located in Yunnan Province's Zhaotong City, features a main span of 168 meters and a total length of 546 meters, making it a large-span high-pier bridge [3]. - The bridge construction faced complex geological conditions due to its location in a mountainous canyon area, presenting significant challenges [3]. - The project utilized advanced construction techniques, including precise measurement and special drilling methods to ensure the stability of the bridge foundation under difficult terrain [3]. Group 2: Technological Innovations - Hydraulic climbing formwork technology was employed for efficient and safe high-altitude operations, ensuring the quality and progress of the pier construction [3]. - An intelligent temperature control system was implemented during the concrete pouring process to maintain the quality of the large-volume concrete [3]. Group 3: Project Significance - With the completion of the Sanguoshui Grand Bridge, the overall bridge construction for the Yukun High-Speed Railway is now 97% complete [3]. - The Yukun High-Speed Railway spans approximately 700 kilometers, with the Yunnan section measuring 388.6 kilometers and designed for a speed of 350 kilometers per hour, making it the first high-speed railway in Yunnan to reach this speed [3]. - Once operational, the railway will significantly reduce travel time between Chongqing and Kunming, contributing to the establishment of a new development pattern and promoting high-quality economic and social development in the surrounding areas [3].