四川引大济岷工程：“智慧+生态”谱写现代化水网建设新篇章

Core Insights - The Yindaji Min Project, the largest inter-basin water diversion project in Sichuan's history, has officially commenced construction, benefiting 34.13 million people across 8 cities and 43 counties [1][3] Group 1: Project Overview - The project will take water from the Dadu River Luding Hydropower Station and create a water delivery system with a total length of 261 kilometers, including a main line of 133 kilometers, a southern branch of 103 kilometers, and a northern branch of 25 kilometers [3] - The project features over 58% of its length as tunnels, which are referred to as the "Underground Water Supply Great Wall" [3] Group 2: Technical Challenges - The project faces three core technical challenges: deep-buried long tunnels in complex geological conditions, high flow and high drop energy dissipation, and large-diameter pressurized pipelines [3] - During the preliminary research phase, 48 technical studies were completed, including TBM selection for deep-buried tunnels and groundwater control in complex geological environments [3] Group 3: Ecological Considerations - The project aims to achieve a balance between construction and ecological protection by optimizing routes to avoid core areas, using tunnel boring to minimize surface disturbance, and constructing fish passages [4] - The core strategy includes "avoidance, mitigation, restoration, and compensation" to minimize ecological disruption and enhance environmental restoration [4] Group 4: Smart Management - A digital twin-based lifecycle management system will be established, integrating information technology throughout the project from design to operation, creating a "smart water conservancy" demonstration project [4]