Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Active underpinning device for multiple-pile foundation of bridge
The invention belongs to the field of bridge construction, and particularly relates to an active underpinning device for a multi-pile foundation of a bridge. The tops of a plurality of new piles at the bottom of an apron piece penetrate through the top of the apron piece and extend to the positions above the apron piece, the tops of the plurality of new piles are fixedly installed at the bottom ofthe bridge, a plurality of jacking blocks fixedly installed at the top of the apron piece are located on the sides, close to each other, of two pile body main ribs correspondingly, two gas cylindersare fixedly installed on the inner wall of the bottom of a cavity of each jacking block, and the tops of two piston push rods in the two gas cylinders penetrate through the inner walls of the tops ofthe two gas cylinders correspondingly and extend into the cavities; and the tops of the two piston push rods penetrate through the inner wall of the tops of the cavities and extend to the positions above the jacking blocks, and two sliding plates which are symmetrically arranged are installed on the inner wall of the bottom of a cavity on a top clamping block of the two piston push rods in a sliding mode. Compared with a mode that only one underpinned pile can be operated once, according to the device, two underpinned piles can be replaced at the same time, and thus the multi-pile foundation active underpinning efficiency is greatly improved.
本发明属于桥梁施工领域，尤其是一种桥梁多桩基主动托换装置，承台梁底部多个新桩的顶部均贯穿承台梁的顶部并均延伸至承台梁的上方，且多个新桩的顶部均和桥梁的底部固定安装，承台梁的顶部固定安装的多个顶起块分别位于两个桩身主筋相互靠近的一侧，顶起块腔室的底部内壁上固定安装两个气瓶，两个气瓶内部两个活塞推杆的顶部分别贯穿两个气瓶的顶部内壁并延伸至腔室的内部，且两个活塞推杆的顶部均贯穿腔室的顶部内壁并均延伸至顶起块的上方，两个活塞推杆的顶部卡紧块上空腔的底部内壁上滑动安装有对称设置的两个滑板，本发明较之一次只能操作一个被托换桩的方式，可以同时对两个被托换桩进行替换，大大提高了多桩基主动托换的效率。
Active underpinning device for multiple-pile foundation of bridge
The invention belongs to the field of bridge construction, and particularly relates to an active underpinning device for a multi-pile foundation of a bridge. The tops of a plurality of new piles at the bottom of an apron piece penetrate through the top of the apron piece and extend to the positions above the apron piece, the tops of the plurality of new piles are fixedly installed at the bottom ofthe bridge, a plurality of jacking blocks fixedly installed at the top of the apron piece are located on the sides, close to each other, of two pile body main ribs correspondingly, two gas cylindersare fixedly installed on the inner wall of the bottom of a cavity of each jacking block, and the tops of two piston push rods in the two gas cylinders penetrate through the inner walls of the tops ofthe two gas cylinders correspondingly and extend into the cavities; and the tops of the two piston push rods penetrate through the inner wall of the tops of the cavities and extend to the positions above the jacking blocks, and two sliding plates which are symmetrically arranged are installed on the inner wall of the bottom of a cavity on a top clamping block of the two piston push rods in a sliding mode. Compared with a mode that only one underpinned pile can be operated once, according to the device, two underpinned piles can be replaced at the same time, and thus the multi-pile foundation active underpinning efficiency is greatly improved.
本发明属于桥梁施工领域，尤其是一种桥梁多桩基主动托换装置，承台梁底部多个新桩的顶部均贯穿承台梁的顶部并均延伸至承台梁的上方，且多个新桩的顶部均和桥梁的底部固定安装，承台梁的顶部固定安装的多个顶起块分别位于两个桩身主筋相互靠近的一侧，顶起块腔室的底部内壁上固定安装两个气瓶，两个气瓶内部两个活塞推杆的顶部分别贯穿两个气瓶的顶部内壁并延伸至腔室的内部，且两个活塞推杆的顶部均贯穿腔室的顶部内壁并均延伸至顶起块的上方，两个活塞推杆的顶部卡紧块上空腔的底部内壁上滑动安装有对称设置的两个滑板，本发明较之一次只能操作一个被托换桩的方式，可以同时对两个被托换桩进行替换，大大提高了多桩基主动托换的效率。
Active underpinning device for multiple-pile foundation of bridge
一种桥梁多桩基主动托换装置
FAN GUANGYU (Autor:in)
17.11.2020
Patent
Elektronische Ressource
Chinesisch
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