Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for dismantling overwater suspended arch bridge
The invention discloses a construction method for dismantling an overwater suspended arch bridge. A seventh span to a twelfth span are dismantled, ninth to twelfth spans are dismantled in a dismantling sequence from the twelfth span to the ninth span through the same process steps as a thirteenth span, sequential hole-by-hole removal is adopted, the distance between a long-arm gun machine and a dismantling hole meets the safety distance, an eighth span and a seventh span are dismounted according to the same process requirements, after the upper structure of each span of an approach bridge is dismantled, corresponding bridge piers are chiseled off, a foundation is enlarged, and scattered rock ballast and concrete materials in a site are cleared away and transported to a muck site so as to provide an operation site for subsequent span bridge chiseling. According to the overwater suspended arch bridge dismantling construction method, operation of mechanical equipment and personnel on an old bridge is avoided, the safety risk of dismantling the old bridge is reduced, the bridge dismantling construction process is simple and clear, operation and popularization are easy, meanwhile, the input amount of the mechanical equipment is small, consumables such as explosives are not needed, and the operation safety of the overwater suspended arch bridge dismantling construction method is improved.
本发明公开一种水上悬砌拱桥拆除施工方法，第7跨至12跨拆除，采用与第13跨相同的工艺步骤，拆除9‑12跨，拆除顺序为第12跨至第9跨，按顺序逐孔拆除，并保证长臂炮机距离拆除孔位满足安全距离，再按相同的工艺要求拆除8跨和7跨，拆完引桥每跨上部构造后，凿除相应的桥墩、扩大基础，并将场地内散落的石渣、混凝土材料清运至渣土场，以便给后续跨径桥梁凿除提供作业场地；本发明一种水上悬砌拱桥拆除施工方法，避免了机械设备及人员在旧桥上作业，降低拆旧桥的安全风险，该拆桥施工工艺简单明了，易于操作及推广，同时机械设备投入量少，不需要炸药等耗材，提升了其操作安全性。
Construction method for dismantling overwater suspended arch bridge
The invention discloses a construction method for dismantling an overwater suspended arch bridge. A seventh span to a twelfth span are dismantled, ninth to twelfth spans are dismantled in a dismantling sequence from the twelfth span to the ninth span through the same process steps as a thirteenth span, sequential hole-by-hole removal is adopted, the distance between a long-arm gun machine and a dismantling hole meets the safety distance, an eighth span and a seventh span are dismounted according to the same process requirements, after the upper structure of each span of an approach bridge is dismantled, corresponding bridge piers are chiseled off, a foundation is enlarged, and scattered rock ballast and concrete materials in a site are cleared away and transported to a muck site so as to provide an operation site for subsequent span bridge chiseling. According to the overwater suspended arch bridge dismantling construction method, operation of mechanical equipment and personnel on an old bridge is avoided, the safety risk of dismantling the old bridge is reduced, the bridge dismantling construction process is simple and clear, operation and popularization are easy, meanwhile, the input amount of the mechanical equipment is small, consumables such as explosives are not needed, and the operation safety of the overwater suspended arch bridge dismantling construction method is improved.
本发明公开一种水上悬砌拱桥拆除施工方法，第7跨至12跨拆除，采用与第13跨相同的工艺步骤，拆除9‑12跨，拆除顺序为第12跨至第9跨，按顺序逐孔拆除，并保证长臂炮机距离拆除孔位满足安全距离，再按相同的工艺要求拆除8跨和7跨，拆完引桥每跨上部构造后，凿除相应的桥墩、扩大基础，并将场地内散落的石渣、混凝土材料清运至渣土场，以便给后续跨径桥梁凿除提供作业场地；本发明一种水上悬砌拱桥拆除施工方法，避免了机械设备及人员在旧桥上作业，降低拆旧桥的安全风险，该拆桥施工工艺简单明了，易于操作及推广，同时机械设备投入量少，不需要炸药等耗材，提升了其操作安全性。
Construction method for dismantling overwater suspended arch bridge
一种水上悬砌拱桥拆除施工方法
LIU HONGBO (Autor:in) / LIU ZHIFENG (Autor:in) / CHEN YONGHUA (Autor:in) / QIAN XIAO'AN (Autor:in) / LI MINRU (Autor:in) / LIN WENXI (Autor:in)
16.10.2020
Patent
Elektronische Ressource
Chinesisch
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