今年底建成后，广州中心城区至湛江通行时间将缩短至1.5小时，承担连接珠三角与粤西的重要作用， 助力"轨道上的大湾区"建设。 在汕头，9月25日，随着牵引车将一对500米长钢轨稳稳铺设在汕头湾海底隧道左线无砟轨道板上，汕汕 高铁汕头南至汕头段正式进入铺轨施工阶段，为年底具备通车条件奠定了坚实基础。汕汕高铁是国 家"八纵八横"高铁网沿海通道重要组成部分，全线通车后，运输能力将从目前日均24对列车提升至50对 以上。在未来，汕汕高铁将与在建的漳汕高铁连接，进一步提升珠三角、海西、长三角等经济区间的南 北向客运能力。 9月29日，随着最后一方混凝土浇筑完成，长（春）深（圳）高速扩建工程新层大桥上跨京九铁路连续 梁主跨顺利合龙，标志着工程全线桥梁主体工程完工，目前长深高速扩建工程全线已全面转入桥面系、 路面及附属施工阶段，向全线通车发起最后冲刺。 中国发展网讯 石培璋 黄思程 记者罗勉从广东省有关方面了解到，国庆前夕，广东省多个重大项目迎来 关键突破，跑出建设"加速度"。 广湛高铁佛山站站房主体结构施工完成、汕汕高铁汕头南至汕头段启动铺轨、大湾区大学（滨海湾校 区）一期一标段工程顺利封顶…… 近日，广州白云站开通运营一 ...

Group 1 - The construction of the main structure of the Foshan Station for the Guangzhan High-speed Railway has been completed, with the project now entering the decoration and renovation phase [1] - The Guangzhan High-speed Railway is in the final stages of preparation for operation, significantly reducing travel time from Guangzhou to Zhanjiang to 1.5 hours upon completion by the end of this year [1] - The Shantou South to Shantou section of the Shanshan High-speed Railway has officially entered the track-laying phase, aiming to enhance transportation capacity from an average of 24 pairs of trains per day to over 50 pairs [2] Group 2 - The Changshen Expressway expansion project has completed the main bridge construction, transitioning to the final stages of road surface and ancillary works, with a total length of approximately 116.6 kilometers [2] - The expansion project is a key initiative under Guangdong's 14th Five-Year Plan, aimed at strengthening connections between the Guangdong-Hong Kong-Macao Greater Bay Area and central regions like Jiangxi [2] - The first phase of the Bay Area University (Binhaiwan Campus) has successfully topped out, marking significant progress in higher education infrastructure in the Greater Bay Area [3] Group 3 - The Bay Area University project will cover an area of approximately 67,000 square meters, addressing the shortage of high-level engineering education resources in the region [3] - The Guangzhou Baiyun Station's TOD integrated transport hub has completed the construction of four towers, which will serve as a key driver for regional economic development [3]

汕头湾海底隧道是汕汕高铁全线控制性工程，最大坡度达29‰。当前，汕汕高铁汕头南至汕头段进入冲 刺阶段，广汕铁路公司牵头组建了保开通现场工作专班，联合参建各方压实责任、精准施策，及时调配 各类生产资源。 汕汕高铁全线通车后，运输能力将从目前日均24对列车提升至50对以上。在未来，汕汕高铁将与在建的 漳汕高铁连接，进一步提升珠三角、海西、长三角等经济区间的南北向客运能力，为汕头等沿线城市融 入大湾区、连接华东地区提供重要通道。 汕汕高铁始于汕头站，途经汕头市、揭阳市、汕尾市，终至汕尾站，全长162.368公里，设计时速350公 里，该项目汕尾至汕头南段已于2023年12月开通运营。本次铺轨作业由汕头至汕头南段，全长19.8公 里，包含汕头湾海底隧道9.7公里，共需铺设长钢轨32公里。 近日，随着牵引车将一对500米长钢轨稳稳铺设在汕头湾海底隧道左线无砟轨道板上，汕汕高铁汕头南 至汕头段正式进入铺轨施工阶段，为年底具备通车条件奠定了坚实基础。 ...

9月21日凌晨3点，在世界首条时速350千米的单洞双线高铁海底隧道——汕汕高铁汕头湾海底隧道内， 随着最后一块无砟轨道道床板成功浇筑，汕汕高铁全线无砟轨道工程全面完工，这也为后续铺轨、验收 及开通奠定了坚实基础。 汕汕高铁是国家"八纵八横"沿海高速铁路通道的重要组成部分，也是广东省重点工程。项目全线建成 后，将与在建的漳汕高铁相衔接，共同构筑串联珠三角与长三角之间的南北向快速客运通道，对促进沿 线城市融入粤港澳大湾区、强化与华东地区的联系具有重要意义。 ...

Group 1 - Multiple major engineering projects in China are accelerating, contributing to high-quality development [3] - The Xingtong 200,000 kW wind power project in Inner Mongolia has achieved full-capacity grid connection, generating 560 million kWh of clean energy annually, enough to power approximately 670,000 people for a year [6] - The Shantou Bay underwater tunnel of the Shanshan High-speed Railway has successfully completed its construction, with a total length of 9,781 meters, significantly increasing train capacity from 24 pairs to over 50 pairs daily [8] Group 2 - The "Jiaolong" manned submersible has completed its first sea trial after technical upgrades, achieving a record number of descents with four descents in one day, validating key technical performance indicators [10] - The domestically developed shield machine "Cangyuan" has been launched in Jiangsu, set to undertake the underwater shield tunnel project of the longest highway, with a diameter of 16.66 meters and a domestic technology localization rate exceeding 98% [12] - The Haitaichangjiang Tunnel will effectively alleviate traffic on the Sutong Yangtze River Bridge, playing a significant role in the integrated development of the Yangtze River Delta region and the national strategy for the Yangtze River Economic Belt [13]