Group 1: Infrastructure Developments - The construction of the longest bridge under construction in the world, the Tongtaiyang Grand Bridge, has achieved a significant milestone with the successful closure of the cross-Yinjiang River cable-stayed bridge on July 1 [1][5] - The bridge spans 522.3 meters in total length, with a main span of 220 meters, and is the first cable-stayed bridge on the Tongtaiyang Grand Bridge to achieve closure [1][5] - The Shanghai-Chongqing-Chengdu high-speed railway, of which this bridge is a part, is a key national transportation corridor, covering approximately 2,100 kilometers across six provinces and cities, with a design speed of 350 kilometers per hour [5] Group 2: Transportation Enhancements - The Wuhu Longwan Yangtze River Tunnel, the first underwater tunnel in Anhui province, officially opened on July 1, significantly reducing travel time from the Jiangbei New District to Wuhu city center to just 5 minutes [6][10] - The tunnel, which is 6 kilometers long and designed for six lanes with a speed limit of 80 kilometers per hour, enhances cross-river transportation capacity and supports regional integration into the Yangtze River Delta [8][10] Group 3: Shipping and Logistics - The Three Gorges Hub reported a cargo throughput exceeding 80 million tons in the first half of the year, demonstrating the effective operation of its navigation structures [11] - The Three Gorges Ship Lock, which is the most complex inland ship lock in the world, has facilitated a cumulative cargo throughput of 2.24 billion tons since its opening in 2003, with an annual throughput consistently exceeding 100 million tons [14] Group 4: Renewable Energy Initiatives - The first unit of the Bala Hydropower Station, a key project in the western development initiative, was successfully connected to the grid on June 30, providing significant support for regional energy security [15] - The hydropower station, with a total installed capacity of 746,000 kilowatts, is expected to generate an average annual output of 2.553 billion kilowatt-hours, sufficient to meet the basic electricity needs of a city with a population of 1 million [15][19]

Core Viewpoint - The completion of the Wuhu Longwan Yangtze River Tunnel significantly enhances cross-river transportation capacity in Wuhu City and supports the economic development of the Anhui region and the integration of the Yangtze River Delta [1][2]. Group 1: Project Overview - The Wuhu Longwan Yangtze River Tunnel is the first underwater tunnel in Anhui Province, with a total length of 6 kilometers and designed as a dual six-lane urban expressway, allowing for a driving speed of 80 km/h [1]. - The construction utilized two large-diameter shield machines, "Wanjing Fendou" and "Wanjing Fuxing," to navigate through complex geological conditions, including over ten types of mixed strata [1]. Group 2: Technical Achievements - The project team developed over 20 key core technologies during construction, including optimizing excavation parameters and modifying the cutter head, which were crucial for successful tunneling under challenging conditions [1]. - The construction process was described as a "geological museum" due to the diverse geological challenges faced, making it one of the most complex and risky shield tunnel projects on the Yangtze River [1]. Group 3: Economic and Social Impact - The completion of the tunnel is expected to accelerate the development of the Wuhu Jiangbei New District and enhance the economic and social development of both banks of the Yangtze River in Anhui [2]. - The project contributes to the broader goal of integrating the Yangtze River Delta region, facilitating improved transportation and economic connectivity [2].

今天（7月1日）11时，安徽首条过江隧道芜湖龙湾长江隧道建成通车。自此，驾车从江北新区到芜湖大龙湾对岸市区，通行时间从40分钟缩短至5分钟。 芜湖龙湾长江隧道作为芜湖第四条跨江通道，该隧道的建成通车，将大幅度提升芜湖市跨江交通能力，对芜湖推动跨江发展，加快融入长三角一体化等具有 重要意义。 为了保障隧道安全运行，及时处理突发情况，隧道里搭建了一个"智慧大脑"——智慧综合管控平台。这个平台连接着136个智能监控设备，实现了隧道内外 的全程实时监控。还建立了高效消防系统，具备自动启动功能，并能与隧道内的指挥调度系统无缝对接，在发生火灾时提供迅速、有效的应急响应。同时， 为应对突发紧急情况，隧道每60米设置了一处安全逃生通道，不仅设置了常规疏散楼梯，还专门为行动不便的老人和儿童设计了疏散滑道。 大机 新闻 （总台记者 王利 任鑫玉） ct Key Super President Kell STAC 742 芜湖龙湾长江隧道是安徽省首条过江隧道，被誉为"八百里皖江第一隧"。隧道位于芜湖市长江大拐弯处，总长6公里，设计为双向六车道城市快速路，设计 时速80公里。其中4公里采用盾构法施工，由两台15.07米超大直径泥水平 ...

从江北入口进入隧道内部可以看到，右线隧道装饰装修、机电安装、逃生通道、沥青摊铺等已全部完 成，正在施划交通标线，三车道清晰可见，基本和通车时的轮廓无异。左线隧道内，沥青摊铺已完成 50%以上，工人们正在安装最后几块装饰板，预计6月10日前，沥青摊铺、交通标线等全部完成。 "可以说，隧道建设已进入最后的通车冲刺关键阶段。"据芜湖长江隧道公司副总工程师苗成介绍，目 前，左右双线、江南江北工作井、明挖段主体结构及装饰装修、机电安装已经施工完成，正在进行联调 联试；接线道路主体基本完成，只剩余部分路面摊铺；形似"小蛮腰"的江南风塔施工及调试已经完成， 江北风塔剩余部分装饰装修及机电安装将于6月中旬完成；收费大棚已经施工完成，正在进行设备调 试。 新京报讯 据"安徽发布"微信公众号消息，芜湖龙湾长江隧道建设进展一直备受关注，近日，左右线隧 道基本建成，整个隧道已进入联调联试阶段，计划7月建成通车。 作为安徽省首条长江隧道，芜湖龙湾长江隧道北接江北新区龙湾路，穿越长江后南至弋江区大工山路， 设计为双线双向六车道的城市快速路，设计时速80千米，全长约6000米。其中采用超大直径盾构机掘进 的右线隧道长3967米，左线隧道长 ...