Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Arch bridge dismantling method
The invention relates to an arch bridge dismantling method which comprises the steps that at least one side of an arch bridge is filled with soil to form a cofferdam; a bridge deck is milled from one end to the other end of the arch bridge; guardrails on the two sides of the arch bridge are dismantled; two excavators are adopted to dismantle arch filling and web arch rings from the middle to the two ends of the bridge deck of the arch bridge; the excavators are stopped on the soil cofferdam, vault strip stones of the main arch ring are dismantled till the vault is broken to the soil cofferdam and the riverbed from the dismantling position, and dismantling continues to be conducted from the main arch position to the bridge abutment; and the two excavators are adopted to stop on the road surfaces at the two ends of the arch bridge to dismantle bridge abutments at the two ends of the arch bridge. By the adoption of the arch bridge dismantling method, arch bridge dismantling construction can be completed two days earlier than that of a direct impact crushing method, the aim of quickening the construction progress while construction machinery is saved is achieved, the construction efficiency is greatly improved, and meanwhile the danger of high-altitude operation is reduced.
本发明涉及一种拱桥拆除方法，包括:在拱桥至少一侧填土围堰；从拱桥一端向另一端铣刨桥面；拆除拱桥两侧的护栏；采用两台挖掘机从拱桥桥面中部向两端对拱上填充和腹拱圈进行拆除；将挖掘机停靠在土围堰上，拆除主拱圈的拱顶条石直至拱顶从拆除位置断裂至土围堰以及河床上，并从主拱位置向桥台继续拆除；采用两台挖掘机停靠在拱桥两端路面处分别对拱桥两端的桥台进行拆除。采用本发明的拱桥拆除方法，可以比直击破碎法提前2天完成了拱桥拆除施工，实现了在节约施工机械的同时加快了施工进度目标，大大提高了施工效率,同时减小了高空作业的危险性。
Arch bridge dismantling method
The invention relates to an arch bridge dismantling method which comprises the steps that at least one side of an arch bridge is filled with soil to form a cofferdam; a bridge deck is milled from one end to the other end of the arch bridge; guardrails on the two sides of the arch bridge are dismantled; two excavators are adopted to dismantle arch filling and web arch rings from the middle to the two ends of the bridge deck of the arch bridge; the excavators are stopped on the soil cofferdam, vault strip stones of the main arch ring are dismantled till the vault is broken to the soil cofferdam and the riverbed from the dismantling position, and dismantling continues to be conducted from the main arch position to the bridge abutment; and the two excavators are adopted to stop on the road surfaces at the two ends of the arch bridge to dismantle bridge abutments at the two ends of the arch bridge. By the adoption of the arch bridge dismantling method, arch bridge dismantling construction can be completed two days earlier than that of a direct impact crushing method, the aim of quickening the construction progress while construction machinery is saved is achieved, the construction efficiency is greatly improved, and meanwhile the danger of high-altitude operation is reduced.
本发明涉及一种拱桥拆除方法，包括:在拱桥至少一侧填土围堰；从拱桥一端向另一端铣刨桥面；拆除拱桥两侧的护栏；采用两台挖掘机从拱桥桥面中部向两端对拱上填充和腹拱圈进行拆除；将挖掘机停靠在土围堰上，拆除主拱圈的拱顶条石直至拱顶从拆除位置断裂至土围堰以及河床上，并从主拱位置向桥台继续拆除；采用两台挖掘机停靠在拱桥两端路面处分别对拱桥两端的桥台进行拆除。采用本发明的拱桥拆除方法，可以比直击破碎法提前2天完成了拱桥拆除施工，实现了在节约施工机械的同时加快了施工进度目标，大大提高了施工效率,同时减小了高空作业的危险性。
Arch bridge dismantling method
一种拱桥拆除方法
MENG HONGCHANG (Autor:in) / LOU ZHANLONG (Autor:in) / WU DANDAN (Autor:in)
18.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
Cofferdam-based tied-arch bridge dismantling structure and bridge dismantling method
| Europäisches Patentamt | 2021