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A platform for research: civil engineering, architecture and urbanism
Foundation pit support structure and construction method thereof
According to the foundation pit support structure and the construction method thereof, firstly, optimization design is conducted on support piles, inner supports and earth cutting partition arrangement, and a soil reserving area larger than 50 square meters is arranged in a foundation pit through a pit dividing method to replace the large-area inner supports. And then earth excavation of the preceding area and construction of a foundation slab and a support changing structure are conducted. And then the horizontal inner support is dismantled. And then earth excavation, steel pipe pile recovery, foundation slab construction and maintenance and the like of the post-implementation area are carried out. And finally, back building of the basement structure and dismantling work of temporary support replacement are completed. The method has the following advantages that the construction quality is stable, and the pile foundation pile forming quality is good; construction is convenient, construction period is short, and construction progress is fast; the enclosure construction cost is low, a reserved soil area is utilized, and high economical efficiency is achieved; and the construction feasibility and operability are high, and the adaptability to the site and similar stratums is high.
本发明提供了一种基坑围护结构及其施工方法，本发明首先针对支护桩，内支撑和挖土分区布置进行优化设计，通过分坑的方法在基坑内设置大于50m见方的留土区以替代大面积内支撑。接下来再进行先行区的土方开挖、基础底板和换撑结构的施工。之后拆除水平内支撑。接下来进行后实施区的土方开挖、钢管桩回收和基础底板的施工和养护等工作。最后完成地下室结构的回筑和临时换撑的拆除工作。本发明具有如下优点：施工质量稳定、桩基成桩质量较好；施工便捷，工期短，施工进度快；围护造价低，利用预留土区域，具有较大的经济性；施工可行性、可操作性强，对本场地和类似地层的适应性强。
Foundation pit support structure and construction method thereof
According to the foundation pit support structure and the construction method thereof, firstly, optimization design is conducted on support piles, inner supports and earth cutting partition arrangement, and a soil reserving area larger than 50 square meters is arranged in a foundation pit through a pit dividing method to replace the large-area inner supports. And then earth excavation of the preceding area and construction of a foundation slab and a support changing structure are conducted. And then the horizontal inner support is dismantled. And then earth excavation, steel pipe pile recovery, foundation slab construction and maintenance and the like of the post-implementation area are carried out. And finally, back building of the basement structure and dismantling work of temporary support replacement are completed. The method has the following advantages that the construction quality is stable, and the pile foundation pile forming quality is good; construction is convenient, construction period is short, and construction progress is fast; the enclosure construction cost is low, a reserved soil area is utilized, and high economical efficiency is achieved; and the construction feasibility and operability are high, and the adaptability to the site and similar stratums is high.
本发明提供了一种基坑围护结构及其施工方法，本发明首先针对支护桩，内支撑和挖土分区布置进行优化设计，通过分坑的方法在基坑内设置大于50m见方的留土区以替代大面积内支撑。接下来再进行先行区的土方开挖、基础底板和换撑结构的施工。之后拆除水平内支撑。接下来进行后实施区的土方开挖、钢管桩回收和基础底板的施工和养护等工作。最后完成地下室结构的回筑和临时换撑的拆除工作。本发明具有如下优点：施工质量稳定、桩基成桩质量较好；施工便捷，工期短，施工进度快；围护造价低，利用预留土区域，具有较大的经济性；施工可行性、可操作性强，对本场地和类似地层的适应性强。
Foundation pit support structure and construction method thereof
基坑围护结构及其施工方法
SUN HAIZHONG (author)
2022-04-01
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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