Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Well sealing method for relief well on large bottom plate of foundation pit
The invention discloses a well sealing method for a relief well on a large bottom plate of a foundation pit. The method comprises the following steps of 1.1, making preparatory work before well sealing and 1.2, sealing the relief well. The step 1.1 comprises the processes of lowering the water level of the foundation pit, excavating the foundation pit, completing a plurality of concrete supports of the foundation pit, gradually cutting off a well pipe of the relief well above an excavation surface, and continuously keeping a water pumping work condition of the relief well. The step 1.2 comprises the processes of making a well sealing valve assembly, installing the well sealing valve assembly, performing well sealing pouring twice and performing mortar closing-up. According to the invention, a large-diameter well mouth is changed into a small-diameter well mouth through the well sealing valve assembly, the last moment of well sealing of the relief well of the deep foundation pit is completed in an opening or closing state, an original dynamic well sealing and closing-up process is instantly changed into a static process, and an underground water source is cut off neatly. The method has the advantages of being simple in process, clear in operation procedure, greatly reduced in construction difficulty and good in well sealing effect.
本发明公开了一种基坑大底板减压井的封井方法，本发明包括步骤1.1、封井前的准备工作及步骤1.2、减压井的封井工序，其1.1、包括基坑水位的下降，基坑开挖，完成基坑的数道混凝土支撑，逐次截断开挖面以上的减压井井管，减压井继续保持抽水工况；其1.2、包括制作封井阀组件，安装封井阀组件，两次封井浇筑及砂浆收口；本发明采用封井阀组件将大口径井口改变为小口径井口，使深基坑减压井封井的最后瞬间以开关状态完成，将原先动态的封井收口过程瞬间变为静态的过程，干净利落的切断地下水源。本发明具有工艺简单，操作程序清晰，施工难度大幅度降低且封井效果好的优点。
Well sealing method for relief well on large bottom plate of foundation pit
The invention discloses a well sealing method for a relief well on a large bottom plate of a foundation pit. The method comprises the following steps of 1.1, making preparatory work before well sealing and 1.2, sealing the relief well. The step 1.1 comprises the processes of lowering the water level of the foundation pit, excavating the foundation pit, completing a plurality of concrete supports of the foundation pit, gradually cutting off a well pipe of the relief well above an excavation surface, and continuously keeping a water pumping work condition of the relief well. The step 1.2 comprises the processes of making a well sealing valve assembly, installing the well sealing valve assembly, performing well sealing pouring twice and performing mortar closing-up. According to the invention, a large-diameter well mouth is changed into a small-diameter well mouth through the well sealing valve assembly, the last moment of well sealing of the relief well of the deep foundation pit is completed in an opening or closing state, an original dynamic well sealing and closing-up process is instantly changed into a static process, and an underground water source is cut off neatly. The method has the advantages of being simple in process, clear in operation procedure, greatly reduced in construction difficulty and good in well sealing effect.
本发明公开了一种基坑大底板减压井的封井方法，本发明包括步骤1.1、封井前的准备工作及步骤1.2、减压井的封井工序，其1.1、包括基坑水位的下降，基坑开挖，完成基坑的数道混凝土支撑，逐次截断开挖面以上的减压井井管，减压井继续保持抽水工况；其1.2、包括制作封井阀组件，安装封井阀组件，两次封井浇筑及砂浆收口；本发明采用封井阀组件将大口径井口改变为小口径井口，使深基坑减压井封井的最后瞬间以开关状态完成，将原先动态的封井收口过程瞬间变为静态的过程，干净利落的切断地下水源。本发明具有工艺简单，操作程序清晰，施工难度大幅度降低且封井效果好的优点。
Well sealing method for relief well on large bottom plate of foundation pit
一种基坑大底板减压井的封井方法
FENG KEJUN (Autor:in) / FENG KELI (Autor:in) / FENG DENGLIANG (Autor:in) / HU LEILEI (Autor:in)
06.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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