泸石高速泸定49公里通车段桥梁荷载试验完成 成都至海螺沟景区将实现全程高速

Core Insights - The Luzhou-Shi Expressway, specifically the 49-kilometer section connecting core areas of Luding County to the Hailuo Valley scenic area, is set to significantly reduce travel times and alleviate traffic congestion in the region [3][4]. Group 1: Project Overview - The Luzhou-Shi Expressway has a total length of approximately 96.5 kilometers, with an estimated total investment exceeding 17.4 billion yuan, designed as a dual four-lane highway with a speed limit of 80 km/h [5]. - The project connects the Yakan and Yaxi expressways, starting from the Sangangping interchange in Luding County and ending at the Dashanshu interchange in Shimen County, Yaan [5]. Group 2: Traffic Impact - Once operational, the travel time from Luding to Hailuo Valley will decrease from 1.5 hours to 50 minutes, while the journey from Chengdu to Hailuo Valley will be reduced from 4 hours to approximately 3.5 hours [4]. - The new expressway is expected to divert 80% of the traffic from the original provincial road, effectively alleviating traffic congestion in the western Sichuan tourism area [4]. Group 3: Engineering and Safety - The 49-kilometer section features over 60 bridges, with bridge and tunnel structures accounting for 86.5% of the total project [3]. - A comprehensive load test was conducted on 23 different types of bridges, assessing key metrics such as displacement and vibration, with all indicators meeting design and regulatory requirements [3].