从对"第二次机会"的呼唤，到中哥建交45载的互利合作，再到拥抱共建"一带一路"，哥伦比亚正以积极 的姿态描绘国家发展的新图景。站在新的历史起点上，哥伦比亚将乘着共建"一带一路"的东风，与中国 共同谱写互利共赢、共同发展的新篇章，为构建更加紧密的中拉命运共同体贡献力量。（据新华社电） 2022年8月，哥伦比亚总统佩特罗在其就职演说中引述了本国文学巨匠加西亚·马尔克斯所著《百年孤 独》的结尾："羊皮卷上所载一切自永远至永远不会再重复，因为注定经受百年孤独的家族不会有第二 次机会在大地上出现。"随即，他话锋一转，以充满力量的语调宣示："今天，这第二次机会已然开 启。" （文章来源：经济日报） 如今，哥伦比亚正式加入高质量共建"一带一路"大家庭，为这一深深期许注入了动能。牵手"一带一 路"，是中哥建交45周年之际两国战略伙伴关系持续发展的里程碑。 哥伦比亚对共建"一带一路"的热情，也根植于两国间日益密切且成果丰硕的经贸往来。中国已连续多年 成为哥伦比亚第二大贸易伙伴，哥伦比亚则是中国在拉美地区的第五大贸易伙伴。2024年中哥贸易规模 达1496.3亿元，同比增长13.1%。今年前4个月，中国对哥伦比亚进出口483.4 ...

Core Points - Beijing Subway Line 11 Phase II is a significant infrastructure project that extends the existing Line 11 from Xincheng Steel Station to Lize Business District Station, covering approximately 18.3 kilometers with 14 stations [1][3][6] - The project aims to improve transportation conditions in the surrounding areas, providing fast and high-capacity public transit services [6][8] - The first environmental impact assessment (EIA) has been publicly announced, with a second EIA expected to follow, which will provide more detailed information [3][5] Project Overview - The total length of Line 11 Phase II is approximately 18.3 kilometers, with 14 stations, including 5 transfer stations [3][9] - The line will serve key areas such as Xincheng High-end Industry Service Area, Lugu Qingtai Residential Group, Beijing West Station, and Lize Financial Business District [1][6] - The construction will be entirely underground, with a vehicle depot located in the southern area of Xincheng, covering about 33.8 hectares [3][8] Technical Specifications - The technical standards for Line 11 Phase II will be consistent with those of Phase I, with a maximum design speed of 100 kilometers per hour [7] - The project has undergone multiple revisions, with changes in the total length and number of stations during the planning phases [8][9] Public Participation - During the EIA process, the public is encouraged to submit opinions related to the environmental impact assessment through various channels [4]

Core Viewpoint - The successful installation of the last 22-meter track beam marks the completion of the track beam connection for the High-tech East District Yunba project, which is significant for enhancing transportation in the region [1] Group 1: Project Overview - The High-tech East District Yunba project spans 30.7 kilometers with 32 stations and one comprehensive yard, integrating with existing metro lines 2, 4, and 8 to facilitate transportation for residents and employees [3] - The project aims to connect industrial spaces in the High-tech East District with high-capacity rail transit, addressing the "last mile" issue to promote urban integration [3] Group 2: Safety Management - The installation faced challenges such as working under a 500kV high-voltage line and required meticulous coordination due to the varying lengths and weights of the beams, with the longest beam measuring 60 meters and weighing 120 tons [4] - A detailed inspection checklist was developed to ensure safety during the beam installation process, contributing to the project's rapid progress [6] Group 3: Technical Innovations - The project utilized integrated bridge and track design, demanding high precision in the placement of anti-fall beam anchor rods, with allowable height deviation not exceeding 10 millimeters over 90 meters [7] - A specialized tool was created to maintain anchor rod positioning, achieving a horizontal deviation of 15 millimeters and vertical deviation of 8 millimeters, enabling a monthly installation rate of 11,500 tons, surpassing the national average of 5,000 tons [9] Group 4: Construction Strategy - To meet the 2025 completion deadline, a "see the gap and insert the needle" strategy was employed, allowing for simultaneous operations at multiple points to ensure timely delivery of track beams [11] - All 32 stations have been capped, with ongoing decoration, equipment installation, and system testing to ensure readiness for operation by the end of the year [13]

Group 1 - The construction of the Jinan Metro Line 6 has achieved a significant milestone with the completion of the double-line connection between Dongcang Station and Shandong University Station, 15 days ahead of schedule, enhancing the overall construction efficiency [1] - The East section of the line spans 996.6 meters and faces complex geological conditions, including hard rock and high water pressure, presenting unique challenges for construction [4] - The project utilized innovative "high-pressure abrasive jet - mechanical combined rock breaking" shield tunneling technology, improving rock excavation efficiency by 30% and reducing noise and vibration by 50% compared to traditional methods [7] Group 2 - The construction progress has set new records for similar complex geological conditions, achieving daily advancements of 18 rings and 27 meters for a single line, and 28 rings and 42 meters for double lines [7] - The successful double-line connection not only marks a major breakthrough in the construction of Jinan Metro Line 6 but also provides valuable experience for future similar projects [13] - The company aims to continue applying intelligent construction technologies in metro construction to create high-quality projects and support the high-quality development of urban transportation in Jinan [13]

今年2月，我们给大家推送了今年北京市轨道交通建设计划，今年北京计划新开工建设2条线路，分别是19号线二期（北延及北延 支线）、R4线一期北段。 这两条线路的新进展来了。 近日，北京市公共资源交易服务平台发布了这两条线路的施工资格和监理资格的预审公告。公告显示，19号线北延及支线的7个 合同段以及R4线一期北段的2个合同段已经获批建设，此次进行公开招标，有意向的施工和监理企业可以提出资格预审申请。 而且在公告中也表示，本次10个合同段同批发布招标公告，而且同时施工。包括19号线二期北延及支线土建施工的01至07合同 段、R4线一期北段的03和10合同段，以及M101线的05合同段。 其中最受关注的肯定是19号线二期（北延及北延支线）。 19号线二期北延线路南起19号线一期既有牡丹园站，北至生命谷站，全长约17.1公里，设站7座（其中换乘站4座），分别为北沙 滩站、上清桥南站、清河小营桥站、西三旗站、新龙泽站、生命科学园南站、生命谷站。 t北京地铁19号线二期(北延及北延支线) 二三星线路示意图片 生命谷 生命科学园南 MJ3 M13 第77 IT M13 西三旗 清河站 清河小营桥 > M13 8 84 0 百 ...

5月14日，随着右线最后一方混凝土浇筑完成，天津市轨道交通Z4线矮塔斜拉桥全线顺利合龙，项目建 设取得重大阶段性进展，为全线通车运营按下"加速键"。作为国内首座轨道交通波形钢腹板矮塔斜拉 桥，其顺利合龙为全线轨道铺设及通车运营奠定坚实基础。 作为天津市滨海新区"十大工程"轨道交通系统建设的重点项目之一，Z4线建成后将有效打通滨海新区核 心区与双城发展轴的快速通道。 施工过程中，泰达城轨公司充分发挥建设管理职能，多次组织召开现场生产会及技术交底会，组织行业 专家充分讨论并不断优化桥梁施工方案，反复模拟试验，制定综合应急专项预案，为桥梁施工提供了充 足的技术指导。施工单位中铁上海工程局项目部抽调专业人员组成科研团队，开发大跨度、小曲线矮塔 斜拉桥波形钢腹板线性施工控制工法，建立动态资源管理台账，由专人随时监控物资设备及劳动力配置 情况。定期开展全员安全培训与应急演练，涵盖高空作业、起重吊装等各方面，确保每位施工人员熟悉 安全操作规程、掌握应急处置技能，高效推进工程建设。?? 该桥位于滨海新区黄海路和集疏港公路交叉路口，上跨京津高速、集疏港公路。主桥为波形钢腹板混凝 土结合箱梁，桥塔采用塔梁固结形式的钢筋混凝土结构 ...

技能水平；聚焦盾构掘进参数控制、管片拼装、螺栓复紧等关键环节严加管控，多措并举保障隧道外观 及实体质量，"三阶段验收"多次获评"A"级，整体隧道不渗不漏，顺利完成贯通任务。 下一步，青岛地铁8号线支线各项目团队将深入践行绿色低碳高质量发展理念，以创新为引擎，通过优 化施工工艺、强化质量管控，全面推进"双一流"地铁建设，着力打造安全可靠、低碳环保的品质工程， 持续为城市高质量发展注入新动能。 齐鲁晚报.齐鲁壹点赵波 在青岛市市政公用工程质量安全监督站、青岛地铁集团第三建设分公司及中国交建（601800）8号线支 线项目经理部的大力支持下，中交一航局项目团队克服软土地层易造成地表沉降等问题，通过超前地质 预报、地面及隧道专人监测、严格控制出土量确保土压稳定、严密开展同步注浆及二次注浆等措施确保 盾构掘进安全稳定；以班组建设为抓手广泛开展拼装手、防水材料粘贴等技能比武，持续提升作业人员 日前，青岛地铁8号线支线少海北站-太湖路站区间(以下简称"少太区间")左线隧道顺利贯通，标志着8号 线支线起点至站前大道站9.3公里区间盾构施工任务圆满完成。 少太区间全长721.8米，主要穿越粉质黏土、粗砂、强风化泥岩、强风化泥质 ...

Core Viewpoint - The successful acceptance of the underground section of the Shenzhen Metro Line 8 Phase III project marks the completion of the largest underground excavation tunnel structure currently under construction in China, with plans to open this line within the year, providing direct access to Dapeng for citizens [1][2]. Group 1: Project Overview - The Line 8 Phase III project is a crucial transportation artery for Shenzhen's "Eastward Strategy," stretching approximately 3.7 kilometers from Xiaomeisha Station to Xiyong Station in Dapeng New District [1]. - The project includes one station, one section, and one vehicle depot, specifically Xiyong Station, the section from Xiaomeisha Station to Xiyong Station, and the corresponding entry and exit lines [1]. Group 2: Technical Details - The accepted underground tunnel section is considered the "throat" of the Line 8 Phase III project, characterized by high difficulty and technical complexity [1]. - The tunnel comprises three parts: entry and exit lines, connection lines, and extraction lines, all constructed using the mining method (drilling and blasting) [1]. - The entry and exit line tunnel is particularly complex, measuring approximately 490 meters in length and featuring multiple cross-section transitions, involving 15 different lining types [1]. - The core section of the single-hole three-line tunnel has an excavation span of 23.78 meters, a height of 18.13 meters, and a single-span excavation area of 334.18 square meters, setting a record for the largest cross-section of underground excavation tunnels in China [1][2]. Group 3: Impact and Connectivity - As the first metro line extending to Dapeng New District, Line 8 Phase III is expected to open this year and will connect with existing Metro Line 2 and the first two phases of Line 8, creating a major transportation corridor across Nanshan, Futian, Luohu, and Yantian to Dapeng New District [2]. - This project will significantly enhance daily commuting for residents along the route, alleviate traffic pressure in the eastern region, and provide strong transportation support for the development of tourism in the eastern coastal area, contributing to the establishment of Dapeng New District as a global marine center and a world-class coastal ecological tourism resort [2].

Group 1: Subway Construction and Operations - Wang Yandong, a shield driver, has been working in subway construction since 2015, operating in various cities across China, including Beijing, where he is currently involved in the construction of Line 22 [3][4] - The construction of the Beijing Subway Line 22 spans approximately 81.82 kilometers and connects key areas such as the CBD core, urban sub-center, and neighboring regions, enhancing connectivity and urban development [4] - The shield tunneling operation is continuous, requiring drivers to monitor various parameters and coordinate with over sixty personnel on the surface [3][4] Group 2: Xiong'an New Area and High-Speed Rail - The Xiong'an Intercity Station is under construction in the Xiong'an New Area, designed as a fully underground station with a total building area of 173,000 square meters [7][8] - The station will feature four platforms and six tracks, integrating with the urban development of Xiong'an and serving as a key transportation hub for travelers [7][8] - Advanced construction technologies, including drones and automated systems, are being utilized to ensure quality and efficiency in the project [8] Group 3: River Management and Ecological Restoration - The Yongding River improvement project aims to enhance flood control capabilities and restore ecological balance along a 73-kilometer stretch, addressing damages caused by flooding [11][12] - The project includes the reconstruction of damaged water facilities and the implementation of protective measures for nearby villages, contributing to the overall health of the river ecosystem [11][12] - The successful restoration of the Yongding River has led to increased tourism and local economic development, showcasing the benefits of ecological management [12] Group 4: Forest Conservation Efforts - The Zhangjiakou Xuanhua Forest Farm, managed by Yang Fugui, covers 118,000 acres with a 97% vegetation coverage rate, demonstrating significant reforestation efforts over 24 years [15][16] - Advanced monitoring technologies, including drones and surveillance cameras, have been implemented to enhance forest protection and fire prevention measures [17] - Yang Fugui emphasizes the importance of hands-on management and regular inspections to ensure the health and growth of the forest [17]

Group 1: Energy Projects - The construction of the China Green Development Ginta Multi-Energy Complementary Power Station in Gansu is accelerating, with the molten salt liquefaction process nearing completion during the May Day holiday. The power station is expected to generate 1.45 billion kilowatt-hours annually upon completion [1] - In Jiangsu, the Guodian Investment Binhai 2×1 million kilowatt thermal power expansion project is underway, with 410 workers actively engaged. Once operational, it will supply 10 billion kilowatt-hours of electricity to the Yangtze River Delta each year [1] - The Qingyu DC Phase II 100 MW solar thermal power station in Qinghai is preparing for grid connection testing, with over 100 workers involved in pipeline and heliostat inspections. This project is part of the world's first long-distance renewable energy transmission corridor and is expected to generate 227.1 million kilowatt-hours annually [1] Group 2: Civil Engineering Projects - The Kunming Changshui International Airport expansion project in Yunnan is progressing rapidly, utilizing advanced distributed IoT management to create a smart terminal [2] - The Jinan Metro Line 4 has achieved a significant breakthrough with the completion of a 589-meter underground tunnel, paving the way for its operation by the end of the year [2] - The Longyun Irrigation District project in Guangxi is over 85% complete, with the construction of three remaining dams underway. Once finished, it will improve irrigation for 514,000 acres and produce an average of 32,400 tons of grain annually [2] - The Dianzhong Water Diversion Project, the largest water resource allocation project in Southwest China, has over 2,000 workers focused on tunnel excavation. The project aims to alleviate water supply issues in urban areas and improve local ecological conditions [2]