A | 大连8月25日电 (记者 杨毅)全长11.6公里的海上超长钢栈桥25日在辽宁大连实现全线贯通,该栈桥为目前国内在建里程最长的海上钢栈桥。

Staff members secure aircraft at Hangzhou Xiaoshan International Airport to prepare for Typhoon Dolphin on August 9, 2026. Photo: VCG
Typhoon Dolphin made landfall in Taizhou, East China's Zhejiang Province, on Sunday afternoon, bringing strong winds up to 42 meters per second and heavy torrential rain to the coastal regions amid a red alert - the highest level in the country's typhoon warning system - issued for it earlier that day.
Authorities in East China's Fujian have relocated nearly 100,000 residents, while coastal provinces are suspending railway services and canceled flights, making an all-out effort to mitigate possible risks.
The NMC maintained orange rainstorm and blue severe convective weather alerts at 6 am on Sunday, forecasting exceptionally heavy rainfall of 250 to 440 millimeters in some areas along the eastern coast of Zhejiang, with heavy to torrential rains expected across Jiangsu, Zhejiang, Shanghai, and Anhui between Sunday morning and Monday morning, China Central Television (CCTV) reported.
In response to the typhoon, China's meteorological authority on Sunday upgraded its emergency response for severe meteorological disasters from Level III to Level II.
Fujian raised the emergency response level for typhoon prevention to Level II at 9 am on Sunday.
As Typhoon Dolphin gathers strength and approaches the coastal areas, Fujian's flood control authority, as of 6 pm on Saturday, deployed a total of 17,800 officials to and relocated 98,900 people from high-risk areas, Xinhua News Agency reported on Saturday.
Fujian has suspended all 115 marine engineering projects and moved 290 construction vessels to safe waters, while 55 passenger ferry routes in affected waters have been halted, chinanews.com reported.
Meanwhile, railway services in the affected regions including Fujian, Zhejiang, Shanghai have also been suspended from Sunday to Monday, according to chinanews.com.
Fujian authorities have urged stronger safety measures for returning vessels, offshore platforms and coastal and island tourism, as well as reinforcement of aquaculture facilities. They also called for timely evacuations from flood- and landslide-prone areas to guard against secondary disasters from the typhoon and heavy rain, chinanews.com reported.
In Zhejiang, Wenzhou city has closed all 85 A-level national tourist attractions, turned away more than 7,400 visitors and evacuated over 1,600, with the relocation effort ongoing, according to CCTV. Next, Wenzhou will next implement a "five suspensions" policy, halting outdoor group activities, classes, work, business operations and transportation.
All fishing vessels at Shitang Fishing Port in Wenling, Zhejiang, have returned to port, with all personnel evacuated ashore and maritime rescue teams on standby. Authorities urged vessels to stay off the sea during the typhoon.
In Shanghai, Pudong and Hongqiao airports operated at reduced capacity on Sunday, with nearly 60 percent of flights canceled. A total of 1,384 flights are scheduled to be canceled including 871 at Pudong and 513 at Hongqiao. Passengers are advised to check with their airlines for the latest updates and adjust travel plans accordingly, according to CCTV.
According to Hu Xiao, meteorological analyst at the NMC, the typhoon has several notable features, including its strong intensity and expansive circulation. The typhoon also has several unusual features. Forming unusually far east, near 180°E, it has traveled more than 7,200 kilometers, making its potential landfall in China a rare event and possibly the easternmost such landfall since 1951. Its 12-day lifespan is also well above the typical seven-to-10-day average, CCTV reported.
According to Ma Jun, director of the Institute of Public and Environmental Affairs, Typhoon Dolphin traveled a long distance and remained at typhoon or severe typhoon strength of its lifespan so far. Despite passing through some areas that were unfavorable to its development, its powerful inner core remained intact, while its extensive cloud system continued to absorb moisture and energy, fueling the potential for torrential rainfall.
The typhoon has remained at sea for more than 260 hours and experienced a rare "three rises and three falls" in intensity. Its unusually long lifespan has allowed it to absorb more moisture and energy, while repeated intensity fluctuations have complicated forecasts of its future track and intensity of wind and rainfall, according to CCTV.
After landfall, Typhoon Dolphin may move slowly, prolonging heavy rainfall and raising the risk of extreme precipitation and related disasters. Its track later in the week remains uncertain as it could interact with the southwest monsoon and cold air from the northwest, potentially broadening and intensifying its impacts, Ma told the Global Times on Sunday.
B | 但受潮汐、大风、大雾等多种自然因素限制,该地区海运每年有60多天无法通航,通航期间也无法实现24小时全天候通航,限制了海岛居民出行和经济社会发展。大连市长海(跨海)大桥项目(以下简称“长海大桥”)全长25.5公里,项目起点位于长海县大长山岛,横穿里长山海峡,于普兰店区皮口港东侧登陆。项目建成后,将终结长海县“朝发夕至、看天出岛”的交通困局。
C | 据介绍,长海大桥项目施工海域作业条件严苛,黄海海域风浪、潮汐变化频繁,施工干扰因素多,加之项目浅滩水域水深不足,常规施工船舶无法进场作业,存在施工效率低、安全风险高等问题,长期制约项目推进。
D | 为解决上述问题,项目团队决定建设钢栈桥为其核心配套施工设施。作为项目海上核心物料运输通道,钢栈桥承担建材转运、大型机械进场、人员通勤等重要职能,是名副其实的“海上施工生命线”。 据中建股份长海大桥三标段项目经理倪家明介绍,钢栈桥项目建设规模体量突出,累计完成沉桩3431根,总用钢量6.7万吨。针对极端海洋环境下栈桥结构安全、长效耐久等技术难题,项目团队依托科技赋能优化施工方案,全面提升施工效率、结构稳定性和工程服役年限,历时423天施工建设,最终提前10天完成贯通节点目标。
E | 中建八局大连长海大桥项目副总指挥宫宝凯表示,钢栈桥贯通有效解决了浅滩海域船舶作业难的行业痛点,大幅提升物资、人员通行效率,降低海上施工安全隐患。随着钢栈桥贯通,标志着长海大桥南侧施工区域正式转入主体基础施工阶段。