写在引汉济渭二期工程北干线全线贯通之际

Core Viewpoint - The completion of the northern line of the Yinhang-Jiwei Phase II project marks a significant milestone in addressing water scarcity in the Weibei region, with the promise of providing Han River water to the local population by 2026 [2][6][7]. Group 1: Project Overview - The Yinhang-Jiwei Phase II project consists of a northern line and a southern line, with the northern line spanning 89.54 kilometers from Huangchigou water distribution hub to the Fenhe New City [4][6]. - The project aims to supply nearly 100 million cubic meters of water annually to the main urban area of Xianyang, benefiting approximately 2 million residents [6][7]. Group 2: Water Resource Challenges - Xianyang faces severe water shortages, with an average per capita water resource of 182 cubic meters, only 10% of the national average and 17% of the provincial average [6]. - The city currently relies heavily on a single water source, the Shitou River Reservoir, which poses risks during droughts and water safety incidents [7]. Group 3: Engineering Challenges and Innovations - The construction of the northern line faced significant technical challenges, including the need to tunnel through soft soil conditions and the requirement to safely cross major transportation routes [10][14]. - Innovative construction techniques, such as the combination of shield tunneling and conventional excavation, were employed to overcome these challenges, ensuring the safety of surface structures [12][14]. Group 4: Environmental and Economic Impact - The project emphasizes ecological sustainability, with measures in place to minimize environmental disruption and promote water conservation [18]. - The introduction of Han River water is expected to stabilize water quality for local industries, potentially reducing production costs significantly for companies reliant on water resources [17][18].