Core Insights - The construction of the Xixiang Expressway, which connects Xichang to Shangri-La, is making significant progress with the completion of over 1000 meters of tunneling in both the Jinhe Tunnel and Hanpoling Tunnel, indicating a strong advancement towards timely project completion [1][2] Group 1: Project Significance - The Xixiang Expressway is crucial for the economic development of Liangshan, serving as a vital transportation route that connects key tourist attractions and supports the region's infrastructure goals [2] - The expressway is part of a broader initiative to enhance transportation networks in Liangshan, with a total of seven expressway projects currently under construction, exceeding 1200 kilometers in total length [2] Group 2: Investment and Infrastructure Development - Liangshan has invested over 150 billion yuan in expressway construction since the start of the 14th Five-Year Plan, with plans to complete over 41 billion yuan in road and waterway investments this year, leading the province [2] - The recently signed investment agreement for the Panyan Expressway, estimated at approximately 34.96 billion yuan, highlights ongoing infrastructure development efforts, with construction expected to begin in the third quarter of 2025 [3]

转自：推广 5月31日，由蜀道集团投资建设（蜀道高速集团主导投资、四川省公路院设计、四川路桥承建）的西香 高速雅砻江特大桥香格里拉岸索塔双幅承台顺利完成浇筑，标志着大桥两岸承台浇筑完成，桥梁建设全 面进入索塔施工阶段。 砻江特大桥效果图（图片左侧为西昌岸，右侧为香格里拉岸） 雅砻江特大桥是西香高速"九大超级工程"之一，位于四川省凉山彝族自治州盐源县金河镇，横跨长江一 级支流雅砻江，连接盐源和西昌两地，为全长1482.5米、主跨1200米的双塔单跨钢桁梁悬索桥。值得一 提的是，雅砻江特大桥在设计中采用高韧性混凝土组合桥面板与钢桁梁组成板桁结合结构，这种设计在 跨度超过一千米的悬索桥里，属世界首创，它最大的好处是简化钢结构构造，能降低桥面板厚度，改善 桥面铺装的耐久性，提高使用寿命。 雅 西香高速起点位于西昌市小庙乡，途经盐源县，止于长柏乡川滇省界处，线路总长233.13公里，隧道 131公里/32座，桥梁39公里/131座，桥隧比73.4%。项目跨越3大地质断裂带和7处生态敏感区，控制性 工程主要为3座悬索桥、5座10公里级隧道、1座全地下枢纽互通。概算总投资587.38亿元，单公里造价 2.51亿，批复工期6 ...