Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Transverse dewatering structure construction method capable of achieving foundation pit supporting effect
The invention provides a construction method of a transverse dewatering structure with a foundation pit supporting function, which is applied to construction of a foundation pit group, the foundation pit group comprises a later-excavated foundation pit and a first-excavated foundation pit, the later-excavated foundation pit is separated from the first-excavated foundation pit through a common underground diaphragm wall, and the construction method comprises the following steps: when the first-excavated foundation pit is excavated to a preset supporting elevation position of the later-excavated foundation pit, the first-excavated foundation pit is excavated to a preset supporting elevation position of the second-excavated foundation pit; drilling towards the backward excavation foundation pit on the common underground diaphragm wall to form a sleeve hole; a transverse dewatering assembly is arranged in the sleeve hole, and pre-dewatering is conducted on the post-excavated foundation pit through the transverse dewatering assembly; and when excavation is conducted to the position where the transverse dewatering assembly is located, formwork erecting is conducted on the periphery of the transverse dewatering assembly, pouring is conducted, and the inner support located in the post-excavation foundation pit is formed. The method has the advantages that the transverse dewatering structure is constructed in advance, traditional dewatering well construction can be omitted, and the construction space is optimized; and the transverse dewatering structure can support the foundation pit while achieving dewatering, so that the construction time of the reinforced concrete support is effectively shortened, and the construction period is shortened.
本发明提供一种可兼顾基坑支撑作用的横向降水结构施工方法，应用于基坑群施工，基坑群包括后挖基坑和先挖基坑，后挖基坑通过共用地连墙与先挖基坑相隔，施工方法包括以下步骤：在先挖基坑开挖至后挖基坑的预设支撑标高位置时，在共用地连墙上朝向后挖基坑钻孔形成套管孔；在套管孔内安置横向降水组件，通过横向降水组件对后挖基坑进行预降水；在开挖至横向降水组件所在位置时，在横向降水组件外围立模并进行浇筑，形成位于后挖基坑内的内支撑。本发明的优点是：通过预先施作横向降水结构，可取消传统降水井施作，优化施工空间；并且横向降水结构在实现降水的同时可兼顾基坑支撑作用，从而有效缩短钢筋砼支撑施作时间，减少工期。
Transverse dewatering structure construction method capable of achieving foundation pit supporting effect
The invention provides a construction method of a transverse dewatering structure with a foundation pit supporting function, which is applied to construction of a foundation pit group, the foundation pit group comprises a later-excavated foundation pit and a first-excavated foundation pit, the later-excavated foundation pit is separated from the first-excavated foundation pit through a common underground diaphragm wall, and the construction method comprises the following steps: when the first-excavated foundation pit is excavated to a preset supporting elevation position of the later-excavated foundation pit, the first-excavated foundation pit is excavated to a preset supporting elevation position of the second-excavated foundation pit; drilling towards the backward excavation foundation pit on the common underground diaphragm wall to form a sleeve hole; a transverse dewatering assembly is arranged in the sleeve hole, and pre-dewatering is conducted on the post-excavated foundation pit through the transverse dewatering assembly; and when excavation is conducted to the position where the transverse dewatering assembly is located, formwork erecting is conducted on the periphery of the transverse dewatering assembly, pouring is conducted, and the inner support located in the post-excavation foundation pit is formed. The method has the advantages that the transverse dewatering structure is constructed in advance, traditional dewatering well construction can be omitted, and the construction space is optimized; and the transverse dewatering structure can support the foundation pit while achieving dewatering, so that the construction time of the reinforced concrete support is effectively shortened, and the construction period is shortened.
本发明提供一种可兼顾基坑支撑作用的横向降水结构施工方法，应用于基坑群施工，基坑群包括后挖基坑和先挖基坑，后挖基坑通过共用地连墙与先挖基坑相隔，施工方法包括以下步骤：在先挖基坑开挖至后挖基坑的预设支撑标高位置时，在共用地连墙上朝向后挖基坑钻孔形成套管孔；在套管孔内安置横向降水组件，通过横向降水组件对后挖基坑进行预降水；在开挖至横向降水组件所在位置时，在横向降水组件外围立模并进行浇筑，形成位于后挖基坑内的内支撑。本发明的优点是：通过预先施作横向降水结构，可取消传统降水井施作，优化施工空间；并且横向降水结构在实现降水的同时可兼顾基坑支撑作用，从而有效缩短钢筋砼支撑施作时间，减少工期。
Transverse dewatering structure construction method capable of achieving foundation pit supporting effect
一种可兼顾基坑支撑作用的横向降水结构施工方法
YANG TAO (Autor:in) / LUAN HUANQIANG (Autor:in) / LEE KEONWANG (Autor:in) / QI WENRUI (Autor:in) / DING YINPING (Autor:in) / GE XIUBAO (Autor:in) / YU QINGSONG (Autor:in)
22.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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