Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Single-cantilever construction combined bridge and construction method
The construction method comprises the steps that firstly, tunnel construction is conducted on the two sides of a V-shaped valley respectively, then a bottom plate of a tunnel portal section is excavated downwards, a working space is formed, pouring construction is conducted on a zero section, a balance weight section is constructed at the end, away from the V-shaped valley, of the zero section, and an anchoring device is constructed on the balance weight section; anchoring the counterweight section and the rock mass into a whole; the cantilever section is constructed section by section from the zero sections on the two sides of the V-shaped valley, and in the construction process, tensioning stiffening stay cables are installed to ensure the linearity of the cantilever section; then closure section construction is conducted; after the closure section is hardened, the hanging basket on the bridge is dismantled, and then stiffening steel truss construction is conducted on the bridge surface; and finally, auxiliary engineering of the bridge is constructed, and construction of the single-cantilever construction combined bridge of the V-shaped valley is completed. Single-cantilever pouring construction is achieved through the balance weight sections, the stay cables, the steel trusses and the anchoring devices, the span can reach 40-200 m, the construction period is shortened, and the influence on the environment is reduced.
本发明公开了一种单悬臂施工组合桥及施工方法，首先对V形沟谷两侧分别进行隧道施工，然后隧道洞口段底板向下开挖，形成工作空间并进行零号段浇注施工，零号段远离V形沟谷一端施工配重段，在配重段施工锚固装置，将配重段与岩体锚固为一体；从V形沟谷两侧的零号段开始，对悬臂段分节段施工，并在施工过程中，安装张拉加劲斜拉索保证悬臂段线性；之后进行合拢段施工；待合拢段硬化后，拆除桥上的挂篮，然后再桥面进行加劲钢桁架施工；最后对桥梁附属工程施工，完成V形沟谷的单悬臂施工组合桥的施工。本发明利用配重段、斜拉索、钢桁架和锚固装置实现了单悬臂浇筑施工，跨度可以达到40m～200m范围，缩短施工周期，降低对环境的影响。
Single-cantilever construction combined bridge and construction method
The construction method comprises the steps that firstly, tunnel construction is conducted on the two sides of a V-shaped valley respectively, then a bottom plate of a tunnel portal section is excavated downwards, a working space is formed, pouring construction is conducted on a zero section, a balance weight section is constructed at the end, away from the V-shaped valley, of the zero section, and an anchoring device is constructed on the balance weight section; anchoring the counterweight section and the rock mass into a whole; the cantilever section is constructed section by section from the zero sections on the two sides of the V-shaped valley, and in the construction process, tensioning stiffening stay cables are installed to ensure the linearity of the cantilever section; then closure section construction is conducted; after the closure section is hardened, the hanging basket on the bridge is dismantled, and then stiffening steel truss construction is conducted on the bridge surface; and finally, auxiliary engineering of the bridge is constructed, and construction of the single-cantilever construction combined bridge of the V-shaped valley is completed. Single-cantilever pouring construction is achieved through the balance weight sections, the stay cables, the steel trusses and the anchoring devices, the span can reach 40-200 m, the construction period is shortened, and the influence on the environment is reduced.
本发明公开了一种单悬臂施工组合桥及施工方法，首先对V形沟谷两侧分别进行隧道施工，然后隧道洞口段底板向下开挖，形成工作空间并进行零号段浇注施工，零号段远离V形沟谷一端施工配重段，在配重段施工锚固装置，将配重段与岩体锚固为一体；从V形沟谷两侧的零号段开始，对悬臂段分节段施工，并在施工过程中，安装张拉加劲斜拉索保证悬臂段线性；之后进行合拢段施工；待合拢段硬化后，拆除桥上的挂篮，然后再桥面进行加劲钢桁架施工；最后对桥梁附属工程施工，完成V形沟谷的单悬臂施工组合桥的施工。本发明利用配重段、斜拉索、钢桁架和锚固装置实现了单悬臂浇筑施工，跨度可以达到40m～200m范围，缩短施工周期，降低对环境的影响。
Single-cantilever construction combined bridge and construction method
一种单悬臂施工组合桥及施工方法
LI YONG (Autor:in) / FENG SHIYUAN (Autor:in) / ZHANG WENQIANG (Autor:in) / ZHANG YUQIAN (Autor:in) / SUN YANAN (Autor:in) / LI DUO (Autor:in) / ZHOU YICHAO (Autor:in) / LIU SHUANLONG (Autor:in) / WU TAO (Autor:in) / MA WENCHAO (Autor:in)
23.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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