韩江榕江练江水系连通后续优化工程全线隧洞贯通 建成后将惠及850万人

Core Viewpoint - The completion of the shield tunnel for the Hanjiang, Rongjiang, and Lianjiang water system connectivity project marks a significant milestone in addressing water scarcity issues in the eastern Guangdong region, with a total investment of 10.119 billion yuan [1][2]. Group 1: Project Overview - The project involves a total water conveyance pipeline length of approximately 72 kilometers, with a total estimated investment of 10.119 billion yuan [1]. - The project is a major water resource allocation initiative planned by the Guangdong provincial government, aimed at solving resource and engineering-related water shortages in the eastern Guangdong region [1]. - The project will facilitate the transfer of Hanjiang water resources to various districts, including Chaoyang, Chaoshan, and Puning, benefiting a population of 8.5 million [2]. Group 2: Engineering Challenges - The construction faced challenges, particularly with the "Yuedong 2" shield machine, which encountered a "solitary stone group" during excavation, leading to innovative modifications to the machine [2]. - The project includes approximately 34 kilometers of shield tunnels, TBM tunnels, and drill-blast tunnels, all of which have now been completed [1][2]. - Following the completion of the shield tunnel, construction efforts are now focused on lining the tunnels and building associated pumping stations [2].