为保障主塔楼地下室主体结构施工质量，项目团队在C80高标号混凝土浇筑过程中突破多重挑战。这是 中建一局在苏州首次使用C80高标号混凝土，其高强度特性对裂缝控制提出极为严苛要求。同时，地下 室结构体量庞大，1.9米直径外框柱与1.5米厚剪力墙均属大体积混凝土浇筑范畴，内部水化热控制成为 成败关键。此外，盛夏高温的施工环境进一步加剧高强混凝土水化热反应，温度与收缩裂缝风险尤为突 出。为此，项目团队构建"内降外保"综合技术体系，通过精细化配合比设计、自动化实时温度监测与动 态养护策略，精准控制并主动干预水化热效应，有效降低由水化热引发的裂缝风险，杜绝贯穿性与有害 收缩裂缝的产生，切实保障主塔楼主要受力构件的结构可靠性与耐久性，为主塔楼大底板浇筑并顺利冲 出"正负零"奠定坚实基础。 11月7日，中建一局承建的中海苏州超塔项目迎来重大节点，主塔楼顺利冲出"正负零"，项目正式进入 地上主体结构施工阶段。 作为城市新地标，苏州超塔项目建成后将集高端办公、酒店式公寓、公寓式酒店及塔冠商业等功能于一 体，成为推动苏州城市能级提升与区域经济发展的重要引擎。 为确保主塔楼在30.5米深的复杂基坑上拔地而起且笔直向上，项目团队运用中 ...

Core Insights - The report released by the China Satellite Navigation and Positioning Association indicates a strong growth trend in China's BeiDou industry in 2023, with a steady increase in the comprehensive index and expanding application penetration across multiple fields [1] Industry Overview - The comprehensive index for China's BeiDou industry is projected to reach 1579 points by 2025, reflecting a year-on-year increase of 10.34%. Compared to 2020, indices related to marketization, industrialization, and internationalization have all seen significant growth, exceeding 60% [1] Application and Innovation - The report highlights innovative applications of BeiDou technology, such as the digital installation of large components in the Chengdu-Deyang railway project, showcasing the use of high-precision positioning technology for a "real-life 3D puzzle" assembly [1] Market Value - The overall output value of the satellite navigation and positioning service industry, centered around BeiDou, is expected to reach 575.8 billion RMB in 2024, representing a year-on-year growth of 7.39% [1]