Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for excavating foundation pit close to subway
The invention discloses a method for excavating a foundation pit close to a metro. The method comprises the steps that a foundation pit to be excavated is divided into a plurality of small foundation pits relatively close to the metro and a plurality of large foundation pits relatively far away from the metro; sequentially excavating a plurality of large foundation pits according to the excavation principle that the foundation pit with the designed shallow excavation depth is firstly excavated and then the foundation pit with the designed deep excavation depth is excavated; each small foundation pit is excavated in a layered excavation mode, and the layered excavation mode comprises the steps that when a current layer of soil body is excavated, an excavation operation face is excavated downwards in advance; after the excavation of the current layer of soil body is completed, firstly moving excavation equipment to the excavation operation surface, and then carrying out foundation pit supporting at the excavated position of the current layer; and after supporting is completed, the next layer of soil body excavation is started from the current excavation operation face, the next excavation operation face is reserved, the operation is repeated till the current small foundation pit excavation is completed, and the construction efficiency is improved while the foundation pit excavation stability is improved through the excavation method.
本发明公开了一种紧邻地铁的基坑开挖方法，包括步骤：将所述待开挖基坑分隔成相对靠近地铁的多个小基坑以及相对远离地铁的多个大基坑；依照先开挖设计开挖深度较浅的基坑再开挖设计开挖深度较深的基坑的开挖原则，依次开挖多个所述大基坑；以分层开挖方式开挖每个所述小基坑，且所述分层开挖方式包括步骤：在开挖当前层土体时，预先下挖出一个开挖操作面；在当前层土体开挖完毕后，先将挖掘设备移动至所述开挖操作面，再在当前层已开挖的位置处进行基坑支护；支护完毕后，以当前开挖操作面开始进行下一层土体开挖并预留下一开挖操作面，如此反复，直到当前小基坑开挖完毕，通过所述开挖方法提高了基坑开挖稳定性的同时还提高了施工效率。
Method for excavating foundation pit close to subway
The invention discloses a method for excavating a foundation pit close to a metro. The method comprises the steps that a foundation pit to be excavated is divided into a plurality of small foundation pits relatively close to the metro and a plurality of large foundation pits relatively far away from the metro; sequentially excavating a plurality of large foundation pits according to the excavation principle that the foundation pit with the designed shallow excavation depth is firstly excavated and then the foundation pit with the designed deep excavation depth is excavated; each small foundation pit is excavated in a layered excavation mode, and the layered excavation mode comprises the steps that when a current layer of soil body is excavated, an excavation operation face is excavated downwards in advance; after the excavation of the current layer of soil body is completed, firstly moving excavation equipment to the excavation operation surface, and then carrying out foundation pit supporting at the excavated position of the current layer; and after supporting is completed, the next layer of soil body excavation is started from the current excavation operation face, the next excavation operation face is reserved, the operation is repeated till the current small foundation pit excavation is completed, and the construction efficiency is improved while the foundation pit excavation stability is improved through the excavation method.
本发明公开了一种紧邻地铁的基坑开挖方法，包括步骤：将所述待开挖基坑分隔成相对靠近地铁的多个小基坑以及相对远离地铁的多个大基坑；依照先开挖设计开挖深度较浅的基坑再开挖设计开挖深度较深的基坑的开挖原则，依次开挖多个所述大基坑；以分层开挖方式开挖每个所述小基坑，且所述分层开挖方式包括步骤：在开挖当前层土体时，预先下挖出一个开挖操作面；在当前层土体开挖完毕后，先将挖掘设备移动至所述开挖操作面，再在当前层已开挖的位置处进行基坑支护；支护完毕后，以当前开挖操作面开始进行下一层土体开挖并预留下一开挖操作面，如此反复，直到当前小基坑开挖完毕，通过所述开挖方法提高了基坑开挖稳定性的同时还提高了施工效率。
Method for excavating foundation pit close to subway
紧邻地铁的基坑开挖方法
SONG YOUQIAN (Autor:in) / WANG DONGLEI (Autor:in)
15.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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