此次共有四家国际公司或联合体参与投标，报价如下（不含增值税）： ASHOKA BUILDCON LIMITED（印度）、Serneke International Group AB（瑞典）和Konkan Railway Corporation Limited（印度）联合体：7.8亿欧元 AFCONS INFRASTRUCTURE LIMITED（印度）：6.77亿欧元 DOĞUŞ İNŞAAT VE TİCARET A.Ş.（土耳其）：9.89亿欧元 Cengiz Insaat Sanayi ve Ticaret A.Ş.（土耳其）：报价 8.73亿欧元 杜戈塞洛-诺夫斯卡铁路现代化改造项目全长约83公里，工程总估值约6.2亿欧元，将通过欧盟基金提供部分资金支持。项目内容涵盖既有铁路全面翻修、 铁路复线工程、车站和停靠点改造、铁路平交道口改建或取消、以及电力、信号、控制系统的现代化升级。工程预计工期为5年零10个月，完工后列车运 行时速将提升至160公里，有望显著改善克罗地亚东西向铁路运输能力。 近日，克罗地亚国有铁路基础设施运营商HZ Infrastruktura宣布，克罗地亚史上规模最大的基础设施项目—— ...

Core Viewpoint - The completion of the main structure of the Xiaowangbu Station marks significant progress in the construction of the Qingdao Metro Line 2 Phase II, showcasing innovative construction techniques and addressing various challenges in the project [1][3]. Group 1: Project Overview - Xiaowangbu Station is the first station of the Qingdao Metro Line 2 Phase II, featuring a two-level underground structure with a total length of 282.8 meters and a maximum width of 53.6 meters, approximately double that of a standard station [1]. - The station is strategically located at the intersection of major traffic routes in Qingdao, facing challenges such as poor geological conditions, dense pipelines, and heavy traffic [1]. Group 2: Construction Innovations - The construction team employed a combination of "open-cut and half-width cover excavation" methods to ensure road traffic and construction could proceed simultaneously [3]. - A "three-stage pouring method" was developed to tackle the challenges of ultra-high concrete side wall construction, achieving "zero misalignment and zero leakage" in a limited operational space of 0.92 meters [3]. - The introduction of a semi-automatic mobile large-scale ultra-high steel formwork trolley increased the formwork turnover rate to 12 times, saving 0.15 cubic meters of concrete per meter and reducing carbon emissions by 18% [3]. Group 3: Construction Efficiency - During peak construction periods, 320 workers operated around the clock, achieving a maximum daily excavation volume of 3,300 cubic meters [3]. - The installation of 79 steel pipe columns, each weighing 12 tons, was optimized through techniques such as hole drilling and numerical control positioning, resulting in an installation precision error of less than 3 millimeters [3].

Core Viewpoint - The construction of the Xiongshan High-Speed Railway, particularly the Yellow River Grand Bridge, is a critical component of China's high-speed rail network, showcasing innovative construction techniques and addressing complex geological challenges [1][4]. Group 1: Project Overview - The Xiongshan High-Speed Railway spans approximately 552 kilometers, connecting Xiong'an Station to Shangqiu Station, with a design speed of 350 km/h [1]. - The Yellow River Grand Bridge is the only control project along the Xiongshan High-Speed Railway, measuring 40.82 kilometers in total length, with the main bridge being 1,600 meters long and utilizing 43,000 tons of steel [4]. Group 2: Construction Techniques - The project employs a "mobile formwork" system, referred to as the "aerial beam factory," which has reduced the construction cycle for each beam from 21 days to 15 days through innovative methods [4][5]. - Advanced technologies such as three-dimensional modeling and intelligent monitoring systems have been integrated to ensure high precision in construction, with errors controlled within millimeters [4][5]. Group 3: Geological Challenges - The construction faced significant challenges due to the complex hydrological conditions of the Yellow River, including high water levels and strong erosion [5]. - Specialized techniques, such as environmentally friendly mud circulation methods, were implemented to address these challenges during the construction of underwater piers [5][6]. Group 4: Project Management and Future Steps - The project team has emphasized continuous project management and personnel support to ensure the successful completion of the construction tasks [6]. - The experience gained from overcoming construction difficulties is expected to enhance the skills and capabilities of the team for future projects [6].

成渝一周观察【0501-0507】 1、成都AI产业实现"双突破"！ 日前，成都人工智能产业迎来双重突破。中国电子信息产业发展研究院《人工智能动态》2025年4月刊 将成都研发的"Raydiculous-1系统"列为当月全球五大前沿成果，工信部下属智库机构赛迪顾问于4月底 发布的"2025人工智能企业综合实力TOP100"榜单中，成都市华鲲振宇、创意信息、数之联、考拉悠 然、恒图科技5家企业上榜，数量排名全国第5。 这两项突破不仅印证了成都人工智能产业的硬核实力，更为中国参与全球人工智能竞争提供了西部支 点。 据成都市经信局市新经济委相关负责人介绍，近年来，成都人工智能与机器人产业成绩斐然。2024年， 成都市人工智能与机器人核心产业规模和企业数量实现"双千突破"，核心产业规模突破1000亿元、同比 增长约39%，相关企业突破1000家。成都人工智能产业先后入选四川省战略性新兴产业集群、先进制造 业集群和产业新赛道，机器人产业入选全省首批产业新赛道，综合实力排西部第一。随着产业载体、企 业培育、场景应用、产业生态的夯实，成都正朝着2025年全市人工智能核心产业规模1300亿的新坐标全 力进发。 2、打造"微波 ...