悬臂爬升模板系统在某三代核电站APC壳墙体施工中的应用
Application of Cantilever Jumping Formwork in APC Shell Construction of a Third Generation Nuclear Power Plant
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摘要:
某三代核电站一期工程核岛APC壳是钢筋混凝土壳体结构，该壳体结构的主要功能是抵抗飞机的撞击，以保护核电站核心部位核岛的厂房安全。APC壳体结构跨度大，墙体厚度大且无水平和纵向支撑，因此混凝土浇筑施工质量要求严格。根据APC壳工程结构和质量要求，在实际施工中，利用悬臂爬升模板技术组织砼施工浇筑，据此开发了一套悬臂爬升模板系统工艺技术。通过采用这一技术，保证了APC壳墙体混凝土的施工质量和表面的平整度，加快了墙体施工进度，同时节省了大量的人力物力，具有良好的经济和社会效益。 Abstract:The first phase of a nuclear power plant APC shell structure is made of reinforced concrete pouring, it can resist the impact of the plane, and protects the security of nuclear power plant factory. APC shell structure span is large, and having greater thickness of the wall with no horizontal and vertical support, thus the pouring of concrete quality requirement is strict. According to the APC shell structure quality requirements, the cantilever jumping formwork for concrete pouring construction is used and a construction technology of cantilever climbing formwork system is developed. By using this technique, it can ensure the pouring concrete quality and the surface flatness of the concrete wall of APC shell, and speeds up the construction progress of the wall and save a lot of manpower and resources at the same time. It has good economic and social benefits.
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