A super-large cantilever structure support system across a foundation pit support and a construction method thereof
By hardening and sealing the earthwork, using steel beams for load-bearing and converting the support frame, and utilizing existing shear walls as support points, the problems of underground structure obstruction and backfilling in the construction of cantilever structures were solved, and efficient and safe construction of ultra-large cantilever structures was achieved.
CN122406767APending Publication Date: 2026-07-17SHANGHAI BAOYE GRP CORP
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-21
- Publication Date
- 2026-07-17
Smart Images
Figure CN122406767A_ABST
Abstract
本发明公开了一种跨越基坑支护的超大悬挑结构支撑体系及施工方法，属于建筑工程施工技术领域。该体系包括土方硬化封闭层、钢梁架空受力系统及支撑架体转换系统，通过将钢梁垂直于坡道走向布置并搁置在两侧既有剪力墙顶面，形成跨越障碍区域的架空受力通道，上部支撑架体立杆通过可调底座坐落在钢梁上实现高度自适应调节。施工方法包括土方回填硬化、钢梁安装、架体搭设、悬挑结构施工及体系拆除步骤，利用既有剪力墙作为支撑点，避免土方二次开挖。本发明通过三系统功能互补的协同工作，解决了悬挑下方存在地下结构时支撑无法落地的难题，工期较传统回填方案缩短40%以上，实现超大悬挑结构的无障碍施工。
Need to check novelty before this filing date? Find Prior Art