太原西山供水隧道全隧贯通

Core Viewpoint - The successful completion of the Taiyuan Xishan Water Supply Tunnel, after 1036 days of construction, marks a significant advancement in ensuring water supply safety and improving the quality of life for residents in Taiyuan [1] Group 1: Project Overview - The Taiyuan Xishan Water Supply Tunnel spans 13,248 meters, with China Railway Third Bureau responsible for the construction of 7,256 meters of the main tunnel [3] - The project faced complex geological conditions, including areas of loose loess, fault zones, and karst development, which posed high risks such as roof collapse and water inflow [3] Group 2: Construction Techniques and Innovations - The project team implemented intelligent monitoring techniques using total stations and convergence meters to analyze settlement data and establish a tiered early warning system, keeping tunnel settlement within safe limits [4] - Various construction methods, including the three-step seven-step excavation method and CD method, were employed to enhance the stability of the support structure [4] - Innovative technologies such as an intelligent blasting vibration monitoring system were utilized to control vibration speed within 2.0 cm/s, allowing for a "minimally invasive" crossing of the Tai Gu Expressway [5] Group 3: Achievements and Impact - The project has received multiple awards, including a provincial-level construction method and several patents, providing a solid technical foundation for the tunnel's completion [6] - The tunnel's completion will transport water from the Yellow River and the upper reaches of the Fen River to meet the water needs of 590,000 residents, promoting groundwater conservation and ecological improvement in the region [8]