Core Points - The Huajiang Grand Canyon Bridge is the tallest bridge in the world at 625 meters and has the longest main span of 1420 meters, making it the highest and the largest canyon span bridge globally [3][4][38] - The bridge was completed and opened to traffic on September 28, 2025, after a construction period of 3 years and 8 months [9][16] - The bridge is a critical component of the Liuzhi to Anlong Expressway, which serves as a major transportation route in Guizhou province, connecting the central and southwestern regions [15][32] Infrastructure and Engineering - Guizhou province has built and is constructing over 32,000 bridges, with nearly half of the world's top 100 tallest bridges located there [12] - The bridge's construction faced significant challenges due to complex geological conditions, strong winds, and high-altitude work requirements [50] - Innovative technologies were employed, including a smart cable system and high-strength steel wires, resulting in 21 patented technologies and contributions to national bridge construction standards [53][62] Economic and Social Impact - The completion of the bridge significantly reduces travel time, cutting the journey from 2 hours to just 2 minutes across the canyon, and from 3 hours to 1.5 hours between Liuzhi and Anlong [65] - The bridge not only serves as a transportation facility but also integrates various commercial and recreational functions, transforming it into a "cloud-based complex" [68][71] - The bridge's design includes a viewing platform, a geological cultural museum, and various entertainment options, enhancing its role as a tourist attraction [71][74]

为了掌握风的规律，开建前，建设团队就启动了峡谷风数据监测。通过在大桥桥位区应用多普勒激 光雷达，获取桥位区域的风速、风向、风攻角等海量风场数据，以洞悉风的流动模式，进而开展风洞实 验找到最优的大桥结构形式和抗风措施。 大桥建设期间，多普勒激光雷达测风系统24小时值守捕捉风的"脉搏"，如同为大桥安装全天候"天 气眼"，为施工人员筑起一道安全屏障。如遇强风袭击，系统能够提前预警，指导施工人员采取避险措 施，有效避免安全事故的发生。 为了让大桥结构更能抗风，施工团队设计的流线型钢桁梁具有独特的水滴形截面，能显著降低风荷 载。在此基础上，桥梁上下弦增设的稳定板，如同为大桥装上了一对"平衡翼"，可抑制绝大多数横向风 振。"它不能改变风，但能改变风作用的方向。"贵州交通投资集团有限公司副总经理、总工程师韩洪举 说。 贵州省交通运输厅党委书记、厅长张胤表示，花江峡谷大桥的建成，标志着我国在复杂艰险的喀斯 特峡谷地带桥梁建造技术稳居世界领先水平，彰显中国建造的卓越实力。 新华社贵阳9月26日电（记者周芷若）国庆前夕，新的世界第一高桥——贵州花江峡谷大桥即将正 式通车。这项超级工程实现了多项技术突破，其中抗风设计尤为突出。 全 ...