6月6日，四川泸定至石棉高速公路(简称泸石高速)紫和1号隧道6日双幅贯通，标志着泸石高速泸定段45 公里主线工程实现贯通。 当日贯通的紫和1号隧道位于四川甘孜藏族自治州泸定县田坝乡甘草村，隧道右线全长2503米、左线全 长2466米，最大埋深达627米。隧道三分之一为稳定性极差的V级围岩，松软的块石土层、富含地下水 的冰碛层、破碎的岩体相互交织，地质灾害风险极高。 该隧道施工负责人介绍，项目团队采用"预注浆加固－短进尺掘进－弱爆破开挖－快速支护封闭"的循环 作业模式，用直径近1米的高压旋喷桩，像"打针"一样将水泥浆注入岩体，形成立体加固网络，使松软 岩体的"抗压能力"提升120%。 泸石高速全长96.511公里，由蜀道集团投资建设，概算总投资约174.08亿元，是四川甘孜藏族自治州第 二条高速公路。该项目连接通往甘孜涉藏地区的雅康高速和通往凉山彝区的雅西高速，是中国藏彝走廊 的重要组成部分。该项目桥隧比达86.5%，隧道占比达69%，平行接近多条区域性活动大断裂带，地震 基本烈度为Ⅷ度(8度)。 泸石高速王岗坪互通至大杉树枢纽互通33公里已于2024年12月31日通车试运营，泸石高速泸定段将于今 年再通45公 ...

福州机场第二高速公路项目意义非凡，其桥隧比高达91.4%，其中隧道总长6588米，共3座。本次贯通 的潭头隧道是项目重要的控制性工程之一，全长2830米，为小净距双向六车道隧道。单洞开挖宽度达 17.5米，左、右线最小净距约9.5米，仅为单洞开挖宽度的0.5倍。更为复杂的是，该隧道线路下穿浮岐 水库、蒲竹寺建筑群，施工风险高、难度大，对施工技术和安全管理提出了极高要求，自施工伊始便备 受各方关注。 福州机场第二高速公路的建设，将进一步优化区域骨干路网布局，完善福州长乐国际机场集疏运体系， 使机场与周边区域的联系更加紧密高效。同时，对于促进闽东北协同发展区交通基础设施互联互通，服 务地方经济社会发展，推进福州城市"东进南下、沿江向海"的发展战略，着力构建福州大都市圈等都具 有不可估量的重要作用。 来源：环球网 随着福州机场第二高速公路项目的稳步推进，福州正以更加开放的姿态、更加坚实的步伐，向着现代化 国际城市的目标迈进。这条高速公路将成为福州发展的新动脉，为城市的经济腾飞和社会进步注入源源 不断地动力。我们期待着项目早日竣工，为福州的明天增添更加绚丽的色彩！（林晗、洪族智、陈宇） 6月5日，一声清脆的爆破声响， ...

Core Viewpoint - The construction of the Jinan Tunnel, part of the Jinan Ring Expressway expansion project, has officially entered a substantial construction phase, marking a significant milestone in highway infrastructure development in China [1][4]. Group 1: Project Overview - The Jinan Tunnel is the first in China's expressway sector to adopt an in-situ expansion construction method, which has strong demonstration significance [1]. - The project spans 34.324 kilometers and features a dual eight-lane design with a speed limit of 120 kilometers per hour [4]. Group 2: Environmental Considerations - The project is located within an ecological protection red line area, and measures have been taken to minimize the impact on the surrounding environment by limiting construction to the tunnel entrance area [4]. - The tunnel will include a light shielding canopy at the entrance and an upgraded lighting system inside, significantly enhancing driving safety and comfort [4]. Group 3: Construction Methodology - The project team has opted for blasting construction techniques after a comprehensive geological assessment, despite the proximity of tunnel structures, which poses risks to existing rock and structures [4]. - A fully closed traffic organization method will be implemented during blasting to ensure safety, as opposed to a non-blasting method that would extend the construction period to 7 years, exceeding the approved 3-year timeline [4]. Group 4: Technological Integration - An integrated intelligent construction platform has been established to enhance construction efficiency and safety management, incorporating geological forecasting, monitoring, testing, and construction control [4].

Core Points - The construction of the Kezhu Expressway and the Su-Tai Expressway (Phase II) is progressing rapidly, with both projects expected to be completed and operational by 2025, thereby closing the last two gaps in the Hangzhou Second Ring Road [2][4] - The Hangzhou Second Ring Road, once completed, will significantly enhance traffic flow and economic connectivity within the Hangzhou metropolitan area, benefiting various local industries [5][6] Group 1: Project Progress - The main construction of the Kezhu Expressway includes 23 bridges and 7 tunnels, with asphalt paving currently underway [2] - The Su-Tai Expressway (Phase II) has also reached a critical stage, with the completion of the main line and the commencement of construction for the service area [2][4] Group 2: Economic and Traffic Impact - The completion of the Hangzhou Second Ring Road will alleviate congestion on the existing Hangzhou Ring Expressway, which has been experiencing high traffic volumes and frequent bottlenecks [5] - The new ring road will connect key urban nodes, enhancing economic ties and facilitating quicker access to major industrial areas, such as the pearl industry in Zhuji and the textile industry in Keqiao [5][6] Group 3: Future Developments - The Hangzhou Central Ring Road is also under construction, with plans for completion by 2027, further improving regional connectivity and supporting the city's goal of becoming an international transportation hub [6][7] - The overall transportation plan aims to achieve one-hour commuting within the Hangzhou metropolitan area and two-hour access to major cities in the Yangtze River Delta by 2027 [7]

Group 1 - The core investment in the Chongqing key projects, namely the Chengyu expansion and Dianfengwu projects, has reached 3.55 billion yuan, achieving 42% of the annual investment target for the first five months of the year [1] - The Chengyu expansion project is a collaborative investment by multiple central and state-owned enterprises, covering a total length of approximately 100 kilometers with an estimated total investment of about 19.3 billion yuan [2] - The project aims to enhance traffic capacity between the Chengdu-Chongqing economic circle, significantly improving connectivity and promoting regional economic integration [5] Group 2 - The Dianfengwu project spans approximately 160 kilometers with an estimated total investment of about 32.573 billion yuan, and is expected to reduce travel time significantly between various regions [5] - The completion of these projects is anticipated to boost local tourism, rural revitalization, and economic development, contributing to regional cooperation and the construction of new transportation corridors in the western region [5]

Core Points - The provincial transportation department is actively implementing the G331 border open tourism corridor project and several highway projects, achieving a 6.1% year-on-year increase in transportation infrastructure investment by the end of April, totaling 2.6 billion yuan [1] - The G331 project is prioritized as the "number one project," with a goal to complete the main line by October 1 and the entire project by the end of the year, having already invested 4.65 billion yuan, which is 49.7% of the total investment [2] - The Changchun urban area western ring highway project has completed 6.16 billion yuan in investment, with a projected completion date of October 2026, enhancing the highway network around Changchun [3] - Other highway projects, including Songjianghe to Changbai and Baishan to Linjiang, are progressing well, with significant investments and completion percentages, contributing to the goal of connecting all counties in the province with highways [3] - The transportation department is also planning to start two new highway projects in the second half of the year, which will further improve the road network in the eastern border area [3] - The department is focusing on supporting the development of the cultural tourism industry by enhancing transportation services and infrastructure, aiming to create new growth drivers for high-quality development in Jilin [4]

近年来，中阿两国合作硕果累累——中国企业在阿尔及利亚南部承建的光伏电站项目，助力当地成为北 非重要的清洁能源基地；中企参建的阿尔及利亚东西高速公路，大幅缩短沿海与内陆地区的交通时 间……阿尔及利亚空军老战士们即将踏上中国土地，他们心中不仅有对历史的回忆，更有对未来的期 许。正如一位老战士所说："中国人常说'兄弟同心，其利断金'。我们相信，只要阿中人民手牵手，任 何困难都能战胜，任何梦想都能实现。" 《 人民日报 》（ 2025年05月24日 03 版） (责编：岳弘彬、牛镛) 本报阿尔及尔5月23日电 （记者郝瑞敏）在中国退役军人事务部、中国驻阿尔及利亚大使馆、阿尔及利 亚老战士及相关权利者享有部共同推动下，部分曾在华接受培训的阿尔及利亚空军老战士将于当地时间 5月25日启程赴华，重温那段跨越半个多世纪的珍贵友谊。 上世纪50年代至60年代，两批共27名阿尔及利亚空军学员赴中国接受航空培训。这批学员是阿尔及利亚 第一代飞行员和技术人员，成为阿尔及利亚独立后推动本国空军快速发展的中坚力量。几十年来，阿尔 及利亚空军老战士们深切怀念像自己的父亲和兄长一样的中国教员，期待与这些曾并肩奋斗的中国战友 再度重逢。据他们 ...

Core Points - The approval of the preliminary design for two national highway projects marks a significant step towards full construction [1] - The G4231 Nanjing to Jiujiang Highway and G9904 Nanjing Urban Circle Ring Highway projects are crucial for regional connectivity and development [4][6] Group 1: G4231 Nanjing to Jiujiang Highway - The G4231 highway segment from He County to Wuwei is 68.8 kilometers long, connecting various towns and enhancing transportation along the Yangtze River [2] - This project will create a second highway link between Wuhu and Nanjing, improving interconnectivity and supporting regional development [4] - It is the first highway in Wuhu to be constructed through a public-private partnership and is part of the broader highway planning in Anhui Province [4] Group 2: G9904 Nanjing Urban Circle Ring Highway - The G9904 highway is part of the national highway network and spans approximately 288 kilometers, connecting multiple cities in Jiangsu and Anhui provinces [5] - The specific segment from Tianchang to Yizheng is 17.2 kilometers long with a total investment of 3.146 billion yuan [5] - The advancement of these projects is essential for implementing the Yangtze River Delta integration strategy and enhancing the highway network [6]

Core Points - The successful completion of the Punan Tunnel marks the full connection of the Jiuzhai-Mianyang Expressway, laying a solid foundation for the highway to be fully operational this year [1][2] - The Jiuzhai-Mianyang Expressway is one of the most challenging highways under construction in Sichuan, and once completed, it will reduce the travel time from Chengdu to Jiuzhai Valley from 8 hours to 4 hours [2] Summary by Sections Project Completion - The Punan Tunnel is the last control project of the Jiuzhai-Mianyang Expressway, located in the Giant Panda National Park, with a left tunnel length of 2,747 meters and a right tunnel length of 2,719 meters [1] - The tunnel construction faced multiple challenges, including heavy rain, mudslides, and complex geological conditions [1] Construction Techniques - To ensure smooth project progress, the construction team utilized the already completed right tunnel to increase the working face through two vehicle passages and one expanded pedestrian passage [1] - During peak construction, six working faces were operated simultaneously, employing techniques such as "short advance, weak blasting, and strong support" along with "segmented deep hole grouting reinforcement" to address challenges in the mudflow section [1] Strategic Importance - The Jiuzhai-Mianyang Expressway, approximately 244 kilometers long, is a crucial segment of the G85 highway connecting Yinchuan to Kunming and serves as a major transportation route for Sichuan [2] - It is recognized as a typical demonstration project of a green highway by the Ministry of Transport and is significant for connecting Sichuan to Gansu, Qinghai, and Xinjiang [2]

两大特长隧道 ●海螺沟特长隧道全长4080米，地处泸定、得妥两大活跃断裂带之间，施工中遭遇突泥、涌水等地 质灾害10余次 ●胜利特长隧道右线长5290米，左线长5345米，穿越川西横断山脉及贡嘎山生态保护区，区域地质 活动频繁 "藏彝走廊" ●泸石高速全长96.511公里，概算总投资约174.08亿元，是甘孜州第二条高速公路，连接雅康、雅 西两条高速公路 ●泸定段将于今年再通45公里，泸石高速全线力争2026年建成通车，届时泸定至石棉的3小时车程 将缩短至约1小时 5月12日，四川泸定至石棉高速公路（简称泸石高速）海螺沟特长隧道、胜利特长隧道双幅贯通， 标志着泸石高速泸定段建设进入通车倒计时。 两座隧道是泸石高速重点工程，地质条件极其复杂。海螺沟特长隧道位于甘孜州泸定县得妥镇马列 村附近，全长4080米，昼夜温差大。隧道地处泸定、得妥两大活跃断裂带之间，并紧邻鲜水河断裂带， 与"9·5"泸定地震震中直线距离不足5公里。破碎的岩体、较高的地应力、潜伏的高压地下水，使施工中 遭遇突泥、涌水等地质灾害10余次。 胜利特长隧道位于泸定县泸桥镇咱里村附近，右线长5290米，左线长5345米。隧道穿越川西横断山 脉及贡嘎 ...