On January 19, 2022, the last pair of rails of the Maitreya-Mengzi high-speed railway was put into place smoothly, marking the completion of the track laying of the main line of the Mi-Meng-Meng Railway constructed by the China Railway Third Bureau, fulfilling the owner's node requirements one day ahead of schedule, and successfully completing the track The paving task also laid a solid foundation for the subsequent construction!
The newly built Maitreya-Mengzi Railway is located in the southeastern part of Yunnan Province, with a north-south trend as a whole. The main line is 106.826km long, and the bridge-tunnel ratio is 45.26%. There are Maitreya (existing), Zhuyuan, Pengpu, Kaiyuannan, Honghe, etc. There are 5 stations, of which Maitreya is the existing Yungui Line connecting station, and the rest are new intermediate stations. After completion, it will replace the Kunming-Yujiang Railway and the Yumeng-Mongolian Railway, and connect the Kunming to Maitreya section of the Nanning-Kunming Passenger Dedicated Line, becoming an important passenger passage connecting Kunming, the capital of Yunnan Province, Maitreya, Kaiyuan and Mengzi, the capital of Honghe Prefecture.
The Mi-Mongolia Railway is located in the plateau area, with many long slopes and great hidden dangers to transportation safety. Especially the Baishapo Tunnel with a total length of nearly 4 kilometers has a continuous downhill of 30‰ which is very representative. In the track laying process, Baishapo Tunnel is one of the major challenges. To achieve 0 km alignment of the track laying machine in the 30‰ ballast tunnel, it puts forward high technical requirements for the operation of drivers and car captains. In addition, due to the large ramp and many locomotives, the exhaust emissions of the locomotive and the track laying machine are correspondingly large, which will have a great impact on the respiratory system in a limited space. If the protective measures are not in place, it may even cause the risk of suffocation.
Since entering the site in July 2020, in accordance with the overall deployment of the superior company and the project department, the leaders of the branch and front-line employees have been united, closely united, and cooperated with brother units to clearly implement the main responsibilities in management and formulate new rewards and punishments. Measures to promote production and ensure safety. Under the heavy efforts, difficulties such as the Baishapo Tunnel were overcome, and the track laying task was successfully completed.
The main work in the next step is ballast unloading, rail welding, and machine maintenance, which greatly reduces transportation safety risks. As the New Year is approaching, all the staff of the Mimeng project of the branch will continue to maintain a rigorous and down-to-earth style, ensure the safety of transportation and production during the Spring Festival, take the responsibility of carrying forward the enterprise spirit and service tenet of the three bureaus, never forget the original intention, keep in mind the mission, and serve Contribute to the operation of the entire Mi-Mongolia high-speed rail line.
