乌尉高速公路通车 | 崔华新：我在天山“打”隧道

Core Viewpoint - The completion of the Uwei Expressway, which includes the world's longest highway tunnel, represents a significant achievement in overcoming geographical challenges and showcases the dedication of the construction team [1][16]. Group 1: Project Overview - The Uwei Expressway is set to break the geographical barrier of the Tianshan Mountains, fulfilling a long-held aspiration [1]. - The project has involved extensive efforts from builders who have faced extreme cold and high altitudes, successfully addressing complex geological conditions [1]. Group 2: Engineering Achievements - The team led by engineer Cui Huaxin has spent over five years in a high-altitude, uninhabited area, achieving a world record with the construction of the deepest highway shaft, which reaches a depth of 707 meters, equivalent to 236 stories [4][6]. - The use of a TBM (Tunnel Boring Machine) has been pivotal in the project, allowing for efficient excavation in hard rock conditions, which is essential for mountain tunnel construction [9]. Group 3: Challenges and Solutions - The construction faced significant challenges, including 16 geological fault zones, with the F-6 Bo'a fault being a major obstacle that could potentially halt progress [10][14]. - The team implemented a single shield steel pipe support excavation method to quickly seal collapses and ensure safety, completing the passage through the F-6 fault in 80 days, half the originally planned time [14][16]. Group 4: Innovations and Efficiency - The project marked the first application of TBM technology in highway tunnel construction, leading to a 40% increase in efficiency in broken strata excavation and reducing the planned construction period from 10 years to just over 4 years [16]. - The cumulative progress in tunnel excavation is measured in millimeters, demonstrating the meticulous and persistent efforts of the construction team [18].