西部陆海新通道重点项目建设取得新进展 茅岭江特大桥连续梁合龙

Core Insights - The successful completion of the main span of the Maoling River Bridge marks significant progress in the construction of the Nanfang Railway's Qinzhou to Fangchenggang section, which is a key project in the Western Land-Sea New Corridor [1] Group 1: Project Overview - The Nanfang Railway Qin-Fang section is a vital transportation route for goods in Southwest and Central South China, currently operating on a single line [1] - The project aims to alleviate transportation bottlenecks due to increasing demand for rail-sea intermodal transport, with cargo volume at Fangchenggang Station expected to reach 45.255 million tons in 2025, a 10.5% increase year-on-year [1] - The Maoling River Bridge, a control project of the entire line, spans 1,087.94 meters and features 33 piers, with the maximum pier height reaching 22 meters [1] Group 2: Construction Details - The main span of the continuous beam is 88 meters, divided into 23 segments, with a three-tier control system established to ensure construction quality [2] - The project faced significant challenges due to the bridge's location over the Maoling River, which has a water depth of 8 to 12 meters and is subject to extreme weather conditions [2] - Innovative construction techniques, including the use of double-walled steel cofferdams and specific excavation methods, were employed to ensure safety during underwater construction [2] Group 3: Strategic Importance - The Nanfang Railway Qinzhou to Fangchenggang section, extending 53.33 kilometers, is part of the key transportation hub projects outlined in the overall plan for the Western Land-Sea New Corridor [3] - The project is expected to be completed and operational this year, significantly enhancing the transportation capacity of Guangxi's railway to the sea and improving port logistics in the Beibu Gulf region [3] - This development is crucial for promoting coordinated regional development and enhancing the international connectivity between Guangxi and Vietnam [3]