银百高速陕渝段全线通车

Core Viewpoint - The opening of the Ankang to Liangbao section of the Yinxian Expressway (G69) significantly reduces travel time from Ankang to Chongqing from 140 minutes to approximately 40 minutes, enhancing transportation connectivity in the southern Shaanxi region and promoting economic development along the route [3]. Group 1: Infrastructure Development - The Ankang to Liangbao section of the Yinxian Expressway has a total length of 88.554 kilometers, with the newly opened Liangbao to Shaanxi-Chongqing border section measuring 41.14 kilometers [3]. - The expressway features a dual four-lane design with a speed limit of 80 km/h, and it has a high bridge-tunnel ratio of 96%, making it the expressway with the highest bridge-tunnel ratio in the mountainous areas of Shaanxi [3]. Group 2: Construction Challenges and Innovations - The construction faced challenges such as complex geological conditions and high environmental protection requirements, leading to the implementation of advanced technologies like tunnel information management platforms and three-dimensional exploration [3]. - The project team emphasized standardized construction and process assessment to ensure safety and quality while accelerating construction progress [3]. Group 3: Economic and Social Impact - The completion of the expressway enhances the national highway network layout, connecting the Chengdu-Chongqing economic circle with the Guanzhong Plain urban agglomeration [3]. - The expressway is expected to promote deep integration of "transportation + tourism" and boost the sales of local specialty agricultural products [3].