Core Viewpoint - The construction of the Bise Bridge in Tunisia, the largest ongoing bridge project in the country, has officially entered the main structural construction phase with the drilling of the first permanent pile on July 18, 2023, marking a significant milestone for the project [2] Group 1: Project Overview - The Bise Bridge project spans a total length of 2070 meters, with a main span of 292.5 meters and a bridge deck width of 25 meters, accommodating four lanes of traffic and pedestrian pathways [2] - The project is funded by the European Investment Bank and the African Development Bank, with a signed contract amounting to approximately 1.42 billion RMB [2] - The construction is expected to take 38 months, with a completion date set for July 18, 2024, utilizing an EPC (Engineering, Procurement, and Construction) model [2] Group 2: Technical and Environmental Considerations - The project team has developed control process plans for key construction techniques, including high-altitude steel truss installation, long trestles, large platforms, and ultra-long pile foundations in the sea [2] - A comprehensive ecological baseline survey was conducted over three months to identify the ecological environment and biodiversity characteristics, laying the groundwork for ongoing ecological monitoring [2] - Advanced measures such as floating barriers to control suspended solids and mist cannons to suppress dust will be implemented to minimize environmental impact during construction [2] Group 3: Economic and Social Impact - The Bise Bridge will alleviate traffic congestion caused by the previous old bridge, which required scheduled closures for shipping, thus enhancing regional economic development and improving local residents' travel conditions [2]

Group 1 - The opening ceremony for the permanent pile drilling of the Bizerte Bridge in Tunisia, constructed by Sichuan Road and Bridge Group, marks the transition to the main structure construction phase [1][2] - The project is funded by the European Investment Bank and the African Development Bank, with a contract amount of approximately 1.42 billion RMB and a construction period of 38 months [4] - The Bizerte Bridge, spanning 2070 meters with a main span of 292.5 meters, will significantly improve local traffic conditions and enhance regional connectivity [4][7] Group 2 - The project aims to alleviate long-standing traffic issues caused by the old bridge, which frequently closes for ship passage, leading to significant delays for local residents [4][7] - The construction is expected to enhance the attractiveness and openness of the region, contributing positively to the socio-economic development of Tunisia [7]

记者在采访中了解到，比塞大大桥为钢桁架叠合梁桥，桥梁总长度2070米，主桥最大跨径近300 米，含四个深水基础，建成后将成为当地地标。该桥连接突尼斯A4高速公路和比塞大市，将提升该地 区的吸引力、开放性，对该地区乃至突尼斯社会经济发展具有重大意义。 然而，美景之下亦有隐忧。进入比塞大，必须穿越比塞达运河，而横跨运河的，只有一座建于上世 纪70年代的低矮活动桥。桥体年久失修，每日需定时关闭、升起，方能放行船只通过。这一设计严重制 约了地面交通，致使道路长期拥堵，动辄几公里的"车龙"一动不动，早已成为当地市民和游客的共同烦 恼。 如今，中国企业正在比塞大建造新的大桥，将从根本上打破这里的交通"瓶颈"。在施工现场，人民 网记者看到，各类工程机械隆隆作响，黄色挖掘机挥舞钢臂，在初夏阳光下犹如擘画未来的巨笔。工人 们和技术人员头戴安全帽，脚踏泥土地，在初起的基坑周围忙碌穿梭。钢筋像一根根骨架直刺天穹，混 凝土搅拌车缓缓旋转，吐出灰白色的"生命浆液"，为比塞大勾勒出一幅充满希望的蓝图...... 2024年3月，中国蜀道投资集团旗下四川公路桥梁建设集团有限公司（四川路桥）与突尼斯装备和 住房部正式签约，承建比塞大大桥项目 ...