CSCEC(SH:601668) Qi Lu Wan Bao·2025-12-20 07:56Core Viewpoint - The completion of the shield tunnel for the Qihongtan vehicle section marks a significant milestone in the construction of the Qingdao Metro Line 15, which connects multiple districts and enters a new phase of construction [1][3]. Group 1: Project Overview - Qingdao Metro Line 15 is a key project in the city's third phase of rail transit planning, spanning approximately 31.5 kilometers with all underground construction and 17 stations [3]. - The first phase of the project starts at Xiaowangbu Station and ends at Sifang Factory Station, with the construction unit for the civil engineering section being China Construction [3]. Group 2: Construction Details - The recently completed section of the Qihongtan vehicle segment is approximately 1.28 kilometers long, featuring complex construction challenges such as crossing under commercial buildings and highways [5]. - The project team from China Construction has demonstrated professionalism and responsibility, ensuring precise management of excavation parameters and continuous monitoring of equipment to maintain stability during construction [5]. Group 3: Future Prospects - The completion of Line 15 is expected to alleviate traffic pressure in the main urban area and promote urban development by connecting various districts effectively [7]. - The project aims to achieve a standard of "zero accidents, zero pollution, zero defects," contributing to the high-quality development of Qingdao as an international metropolis [7].