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Excavation and support construction method for foundation pit in limited space
The invention discloses a construction method for excavation and support of a foundation pit in a limited space. The method comprises the following steps that firstly, three adjacent side walls of the foundation pit are vertically excavated and supported in a sloping mode; 2, primary excavation of the inclined side wall of the foundation pit in the limited space; 3, secondary excavation of the inclined side wall of the foundation pit in the limited space; fourthly, the inclined side wall of the foundation pit in the limited space is excavated for the third time; fifthly, micro piles on the inclined side wall of the foundation pit in the limited space are constructed; and 6, excavating and supporting the vertical surface of the inclined side wall of the foundation pit in the limited space. The method is simple in step, reasonable in design and convenient to construct, excavation supporting of the inclined side wall of the foundation pit in the limited space is carried out after vertical and sloping excavation supporting of the three adjacent side walls of the foundation pit is completed, and the deep foundation pit supporting construction process can be simply, conveniently and rapidly completed.
本发明公开了一种受限空间基坑开挖支护施工方法，该方法包括以下步骤：一、基坑三个邻接侧壁垂直和放坡开挖支护；二、受限空间基坑倾斜侧壁的一次开挖；三、受限空间基坑倾斜侧壁的二次开挖；四、受限空间基坑倾斜侧壁的三次开挖；五、受限空间基坑倾斜侧壁的微型桩施工；六、受限空间基坑倾斜侧壁的垂直面开挖及支护。本发明方法步骤简单，设计合理且施工便捷，基坑三个邻接侧壁垂直和放坡开挖支护完成之后进行受限空间基坑倾斜侧壁的开挖支护，能简便、快速完成深基坑支护施工过程。
Excavation and support construction method for foundation pit in limited space
The invention discloses a construction method for excavation and support of a foundation pit in a limited space. The method comprises the following steps that firstly, three adjacent side walls of the foundation pit are vertically excavated and supported in a sloping mode; 2, primary excavation of the inclined side wall of the foundation pit in the limited space; 3, secondary excavation of the inclined side wall of the foundation pit in the limited space; fourthly, the inclined side wall of the foundation pit in the limited space is excavated for the third time; fifthly, micro piles on the inclined side wall of the foundation pit in the limited space are constructed; and 6, excavating and supporting the vertical surface of the inclined side wall of the foundation pit in the limited space. The method is simple in step, reasonable in design and convenient to construct, excavation supporting of the inclined side wall of the foundation pit in the limited space is carried out after vertical and sloping excavation supporting of the three adjacent side walls of the foundation pit is completed, and the deep foundation pit supporting construction process can be simply, conveniently and rapidly completed.
本发明公开了一种受限空间基坑开挖支护施工方法，该方法包括以下步骤：一、基坑三个邻接侧壁垂直和放坡开挖支护；二、受限空间基坑倾斜侧壁的一次开挖；三、受限空间基坑倾斜侧壁的二次开挖；四、受限空间基坑倾斜侧壁的三次开挖；五、受限空间基坑倾斜侧壁的微型桩施工；六、受限空间基坑倾斜侧壁的垂直面开挖及支护。本发明方法步骤简单，设计合理且施工便捷，基坑三个邻接侧壁垂直和放坡开挖支护完成之后进行受限空间基坑倾斜侧壁的开挖支护，能简便、快速完成深基坑支护施工过程。
Excavation and support construction method for foundation pit in limited space
一种受限空间基坑开挖支护施工方法
YANG HUAYUAN (author) / ZHANG ZHE (author) / LIU XIANGJIE (author) / DUAN WUYU (author) / YANG XIAOXIAO (author) / LYU XIAORU (author) / XUE SHENGWEN (author)
2022-03-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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