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Foundation pit inclined throwing support supporting system without staged pouring of bottom plate and construction method of foundation pit inclined throwing support supporting system
The invention belongs to the field of geotechnical engineering, and relates to a foundation pit inclined throwing support supporting system without pouring a bottom plate by stages and a construction method. According to the technical scheme, horizontal connecting beams are arranged between vertical steel piles, the horizontal connecting beams are arranged close to the side walls of the vertical steel piles, the upper ends of inclined throwing supports are connected with a foundation pit support structure, and the lower ends of the inclined throwing supports are connected with the horizontal connecting beams; the center area of the foundation pit is excavated in a basin mode, soil is reserved on the edge of the foundation pit for slope making, the elevation of a reserved earthwork top platform is lower than the top end of the inclined throwing support, and a soil slope toe is reserved to the junction of the inclined throwing support and a foundation bottom plate to be poured. Furthermore, an isolation sleeve is additionally arranged in the contact area of the vertical steel pile and the foundation bottom plate, and an isolation medium is additionally arranged at the joint of the vertical steel pile and the horizontal connecting beam, so that full-pile-length whole-section recovery of the vertical steel pile of the inclined throwing supporting system is achieved. And meanwhile, an all-steel structure is convenient to construct, components can be recycled and reused in a large range, energy conservation and emission reduction are achieved to the maximum extent, and environmental protection is achieved.
本发明属于岩土工程领域的一种无需分期浇筑底板的基坑斜抛撑支护体系及施工方法。技术方案为：各所述竖向钢桩之间设置水平连梁，所述水平连梁靠所述竖向钢桩侧壁布置，所述斜抛撑的上端与所述基坑围护结构连接，下端与所述水平连梁连接；基坑中心区域采用盆式挖土，坑边留土放坡，预留土方顶部平台标高低于所述斜抛撑的顶端，留土坡脚至所述斜抛撑与待浇筑的基础底板交界处。进一步，通过竖向钢桩与基础底板接触区域增设隔离套管、与水平连梁连接处增设隔离介质，实现斜抛撑支护体系的竖向钢桩的全桩长整段回收。可以避免基础底板分次浇筑、分期养护，同时全钢结构施工便捷，构件可大范围回收重复利用，最大限度的节能减排，绿色环保。
Foundation pit inclined throwing support supporting system without staged pouring of bottom plate and construction method of foundation pit inclined throwing support supporting system
The invention belongs to the field of geotechnical engineering, and relates to a foundation pit inclined throwing support supporting system without pouring a bottom plate by stages and a construction method. According to the technical scheme, horizontal connecting beams are arranged between vertical steel piles, the horizontal connecting beams are arranged close to the side walls of the vertical steel piles, the upper ends of inclined throwing supports are connected with a foundation pit support structure, and the lower ends of the inclined throwing supports are connected with the horizontal connecting beams; the center area of the foundation pit is excavated in a basin mode, soil is reserved on the edge of the foundation pit for slope making, the elevation of a reserved earthwork top platform is lower than the top end of the inclined throwing support, and a soil slope toe is reserved to the junction of the inclined throwing support and a foundation bottom plate to be poured. Furthermore, an isolation sleeve is additionally arranged in the contact area of the vertical steel pile and the foundation bottom plate, and an isolation medium is additionally arranged at the joint of the vertical steel pile and the horizontal connecting beam, so that full-pile-length whole-section recovery of the vertical steel pile of the inclined throwing supporting system is achieved. And meanwhile, an all-steel structure is convenient to construct, components can be recycled and reused in a large range, energy conservation and emission reduction are achieved to the maximum extent, and environmental protection is achieved.
本发明属于岩土工程领域的一种无需分期浇筑底板的基坑斜抛撑支护体系及施工方法。技术方案为：各所述竖向钢桩之间设置水平连梁，所述水平连梁靠所述竖向钢桩侧壁布置，所述斜抛撑的上端与所述基坑围护结构连接，下端与所述水平连梁连接；基坑中心区域采用盆式挖土，坑边留土放坡，预留土方顶部平台标高低于所述斜抛撑的顶端，留土坡脚至所述斜抛撑与待浇筑的基础底板交界处。进一步，通过竖向钢桩与基础底板接触区域增设隔离套管、与水平连梁连接处增设隔离介质，实现斜抛撑支护体系的竖向钢桩的全桩长整段回收。可以避免基础底板分次浇筑、分期养护，同时全钢结构施工便捷，构件可大范围回收重复利用，最大限度的节能减排，绿色环保。
Foundation pit inclined throwing support supporting system without staged pouring of bottom plate and construction method of foundation pit inclined throwing support supporting system
一种无需分期浇筑底板的基坑斜抛撑支护体系及施工方法
LIANG ZHIRONG (author) / WEI XIANG (author) / LUO YUSHAN (author) / LIU JINGDE (author) / LI WEI (author) / LI CHENGWEI (author) / HUANG KAIYONG (author) / LIU KAN (author) / RUAN XIAOBO (author) / ZHAO JUN (author)
2023-07-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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