Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Foundation pit structure for reducing displacement of cantilever pile foundation pit supporting system and construction method
The invention provides a foundation pit structure for reducing displacement of a cantilever pile foundation pit supporting system and a construction method. The foundation pit structure comprises a long-strip-shaped foundation pit with a retaining structure adopting cantilever supporting piles; the length of the long edge of the foundation pit is far larger than that of the short edge of the foundation pit, and the depth of the foundation pit is not greater than 8m; the two long edge supporting axes of the foundation pit retaining structure are arched towards the outer side of the foundation pit, and the arched long edge supporting axes are changed into a parabola from an original straight line; and the cantilever supporting piles on the long edge of the foundation pit retaining structureare arranged along the arched long edge supporting axes, and haunched triangular plate belts are arranged at the four corners of the foundation pit retaining structure correspondingly. According to the foundation pit structure for reducing displacement of the cantilever pile foundation pit supporting system and the construction method, the cantilever piles are arched, loads in the middles of the long edges of the foundation pit are transmitted to the corners, so that the stress mechanism of the supporting structure can be improved, the overlarge displacement, caused by space-time effect, of the middles of the long edges of the long-strip-shaped foundation pit is effectively limited, the reliability of the supporting structure is improved, no redundant supporting structure is additionally arranged, and a large amount of construction period is saved.
本发明提供一种减少悬臂桩基坑支护体系位移的基坑结构及施工方法。所述基坑结构包括围护结构采用悬臂支护桩的长条形基坑，该基坑的长边长度远大于短边长度，且深度不超过8m，所述基坑围护结构的两长边支护轴线朝向基坑外侧起拱，且起拱后的长边支护轴线由原始直线变成一条抛物线，基坑围护结构长边的悬臂支护桩沿着起拱后的长边支护轴线布置，并在基坑围护结构的四个角部分别设有加腋三角板带。本发明利用悬臂桩起拱，将基坑长边中部荷载传递到角部，不仅能够改善支护结构的受力机理，有效的限制长条形基坑长边中部因时空效应而产生的过大位移，提高支护结构可靠性，还能够不增加多余支护结构，节省大量工期。
Foundation pit structure for reducing displacement of cantilever pile foundation pit supporting system and construction method
The invention provides a foundation pit structure for reducing displacement of a cantilever pile foundation pit supporting system and a construction method. The foundation pit structure comprises a long-strip-shaped foundation pit with a retaining structure adopting cantilever supporting piles; the length of the long edge of the foundation pit is far larger than that of the short edge of the foundation pit, and the depth of the foundation pit is not greater than 8m; the two long edge supporting axes of the foundation pit retaining structure are arched towards the outer side of the foundation pit, and the arched long edge supporting axes are changed into a parabola from an original straight line; and the cantilever supporting piles on the long edge of the foundation pit retaining structureare arranged along the arched long edge supporting axes, and haunched triangular plate belts are arranged at the four corners of the foundation pit retaining structure correspondingly. According to the foundation pit structure for reducing displacement of the cantilever pile foundation pit supporting system and the construction method, the cantilever piles are arched, loads in the middles of the long edges of the foundation pit are transmitted to the corners, so that the stress mechanism of the supporting structure can be improved, the overlarge displacement, caused by space-time effect, of the middles of the long edges of the long-strip-shaped foundation pit is effectively limited, the reliability of the supporting structure is improved, no redundant supporting structure is additionally arranged, and a large amount of construction period is saved.
本发明提供一种减少悬臂桩基坑支护体系位移的基坑结构及施工方法。所述基坑结构包括围护结构采用悬臂支护桩的长条形基坑，该基坑的长边长度远大于短边长度，且深度不超过8m，所述基坑围护结构的两长边支护轴线朝向基坑外侧起拱，且起拱后的长边支护轴线由原始直线变成一条抛物线，基坑围护结构长边的悬臂支护桩沿着起拱后的长边支护轴线布置，并在基坑围护结构的四个角部分别设有加腋三角板带。本发明利用悬臂桩起拱，将基坑长边中部荷载传递到角部，不仅能够改善支护结构的受力机理，有效的限制长条形基坑长边中部因时空效应而产生的过大位移，提高支护结构可靠性，还能够不增加多余支护结构，节省大量工期。
Foundation pit structure for reducing displacement of cantilever pile foundation pit supporting system and construction method
一种减少悬臂桩基坑支护体系位移的基坑结构及施工方法
HU JIANWEI (Autor:in) / CHEN XUELONG (Autor:in) / LUO YI (Autor:in) / ZHAO XURONG (Autor:in) / LI QINGWEI (Autor:in) / ZHANG GUOYIN (Autor:in)
02.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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