新京报讯（记者裴剑飞）11月27日，长达1760米108新线高速河东村隧道出京方向正式贯通，它也是108 新线高速首条实现贯通的隧道，这条隧道所在的位置正是房山溶洞群，项目团队通过开展超前地质预报 确保了施工安全。 河东村隧道位于房山区河北镇西侧的半山腰上，是108新线高速公路的控制性工程，由东向西穿越三福 村、河东村和檀木港村。 在山谷间，一座座桥墩已经立起，未来这里将建成东庄子大桥。108新线高速将与建设中的国道108三期 工程在此处交会。两条道路将由匝道桥相连，通车后市民驾车经过此处，向北可以前往潭柘寺和门头沟 城区，向东南可以前往青龙湖和良乡城区，向西可以前往霞云岭乡方向。 在北京"23·7"暴雨后，北京市交通委员会编制了灾后恢复重建交通专项规划，提出西部山区"三横三 纵"生命线主通道规划，108新线高速公路作为"三横三纵"生命安全干线通道中的一条横向干线通道， 在"十五五"期间建成后，将有效提高西部山区的抗灾能力与路网韧性，对于深入推进京津冀协同发展交 通一体化、提升首都地区防汛抗洪能力、带动沿线地区经济社会发展具有重要意义。 108新线高速公路位于北京市房山区中北部，与G108共走廊，路线呈东西走 ...

Core Viewpoint - The construction of the 108 New Line Expressway is progressing rapidly, aiming to enhance transportation in the western mountainous region of Beijing and improve disaster resilience and economic development in the area [2][8]. Group 1: Project Overview - The 108 New Line Expressway spans approximately 60 kilometers, connecting G5 Jingkun Expressway and traversing various national parks and scenic areas, ultimately reaching Hebei [2]. - The project features a challenging terrain with 41 bridges, 20 tunnels, and 9 interchanges, resulting in a bridge-tunnel ratio of 88% [2][8]. - The construction is being managed by Shoufa Group's Shoufa Construction Company, with full-scale operations currently underway [2]. Group 2: Construction Challenges - The construction site is characterized by steep terrain and complex geological conditions, necessitating the use of anti-slip chains on construction vehicles [5]. - The West Dadi Bridge is highlighted as a key engineering challenge, with significant depth and height requirements for its foundation [8]. - The project includes multiple crossings over rivers and railways, emphasizing the engineering difficulties faced during construction [7][8]. Group 3: Economic and Social Impact - The expressway is designed to improve connectivity for local towns, facilitating travel for residents and promoting local economic growth [7][8]. - Upon completion, the expressway is expected to alleviate congestion in the Beijing western corridor and enhance the rapid accessibility of tourism destinations in the region [8]. - The project is part of the national comprehensive transportation network plan, contributing to the broader connectivity between the Beijing-Tianjin-Hebei region and the Chengdu-Chongqing area [8].

Core Viewpoint - The construction of the 108 New Line Expressway, a key transportation route in the western mountainous area of Beijing, is being led by the Shoufa Group, with the 7th section (Fozizhuang section) undertaken by China Railway 14th Bureau [2][4][6][8][11] Group 1 - The total length of the 7th section is 4.3 kilometers, with a bridge-tunnel ratio exceeding 70% [2][4][6][8][11] - During the May Day holiday, over 600 workers worked day and night, utilizing 200 pieces of equipment to advance the construction [2][4][6][8][11] - The project focuses on overcoming challenging engineering tasks, including the construction of the Heilongguan tunnel group [2][4][6][8][11]

Group 1 - The construction of the 108 New Line Expressway is progressing rapidly, with significant developments such as the initial formation of tunnel entrances and the establishment of bridge piers [1] - During the "May Day" holiday, over 400 workers continued construction efforts, with project manager Kong Yongming overseeing daily plans and safety checks [1] - The project includes key structures like the Dongzhuangzi Bridge and the Jiangjun Tuo Interchange, which are crucial for connecting to National Highway 108 Phase III [1] Group 2 - The only service area along the route, Fozizhuang Service Area, is being constructed using tunnel spoil to fill the rugged terrain, with a total area of 2.4 hectares [2] - The 108 New Line Expressway spans approximately 60 kilometers, with a bridge-tunnel ratio of about 88%, indicating a complex construction environment [2] - The project is expected to enhance disaster resilience and transportation integration in the western mountainous region, contributing to the economic and social development of the area [2]