Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-interference construction method for small-clear-distance bridge and tunnel combined structure
The invention relates to the technical field of bridge and tunnel construction, in particular to an anti-interference construction method for a small-clear-distance bridge and tunnel combined structure. The bridge and tunnel combined structure comprises a bridge and a tunnel which are arranged in parallel in the axial direction. The tunnel comprises a tunnel vertical excavation section for firstly sloping and then vertically excavating a tunnel foundation pit and a tunnel sloping excavation section for excavating the tunnel foundation pit in a multi-stage sloping manner; the bridge comprises a bridge slope excavation section for excavating a bearing platform foundation pit in a slope manner and a bridge vertical excavation section for vertically excavating the bearing platform foundation pit; the anti-interference construction method comprises the steps that S1, the slope excavation depth of a tunnel foundation pit is set to be larger than the bearing platform burial depth of a bridge slope excavation section, and after the tunnel foundation pit is excavated and stabilized, a bridge pile foundation is constructed; s2, after bridge pile foundation construction is completed, tunnel main body structure construction and bearing platform construction of a bridge slope excavation section are synchronously conducted; and S4, after tunnel foundation pit backfilling is completed, construction of the residual structure of the bridge is conducted, preposed construction of the bearing platform of the slope excavation section of the bridge is achieved, and the construction speed is increased.
本申请涉及桥隧施工技术领域，特别涉及一种小净距桥隧组合结构防干扰施工方法。桥隧组合结构包括沿轴向并列设置的桥梁和隧道；隧道包括采用先放坡、后垂直开挖隧道基坑的隧道垂直开挖段与多级放坡开挖隧道基坑的隧道放坡开挖段；桥梁包括采用放坡开挖承台基坑的桥梁放坡开挖段与垂直开挖承台基坑的桥梁垂直开挖段；防干扰施工方法包括：步骤S1，设置隧道基坑放坡开挖的深度大于桥梁放坡开挖段的承台埋深，隧道基坑开挖、稳定后，施工桥梁桩基；步骤S2，在桥梁桩基施工完成后，同步进行隧道主体结构施工及桥梁放坡开挖段的承台施工；步骤S4，隧道基坑回填完成后，进行桥梁剩余结构的施工，实现桥梁放坡开挖段承台施工的前置，提升施工速度。
Anti-interference construction method for small-clear-distance bridge and tunnel combined structure
The invention relates to the technical field of bridge and tunnel construction, in particular to an anti-interference construction method for a small-clear-distance bridge and tunnel combined structure. The bridge and tunnel combined structure comprises a bridge and a tunnel which are arranged in parallel in the axial direction. The tunnel comprises a tunnel vertical excavation section for firstly sloping and then vertically excavating a tunnel foundation pit and a tunnel sloping excavation section for excavating the tunnel foundation pit in a multi-stage sloping manner; the bridge comprises a bridge slope excavation section for excavating a bearing platform foundation pit in a slope manner and a bridge vertical excavation section for vertically excavating the bearing platform foundation pit; the anti-interference construction method comprises the steps that S1, the slope excavation depth of a tunnel foundation pit is set to be larger than the bearing platform burial depth of a bridge slope excavation section, and after the tunnel foundation pit is excavated and stabilized, a bridge pile foundation is constructed; s2, after bridge pile foundation construction is completed, tunnel main body structure construction and bearing platform construction of a bridge slope excavation section are synchronously conducted; and S4, after tunnel foundation pit backfilling is completed, construction of the residual structure of the bridge is conducted, preposed construction of the bearing platform of the slope excavation section of the bridge is achieved, and the construction speed is increased.
本申请涉及桥隧施工技术领域，特别涉及一种小净距桥隧组合结构防干扰施工方法。桥隧组合结构包括沿轴向并列设置的桥梁和隧道；隧道包括采用先放坡、后垂直开挖隧道基坑的隧道垂直开挖段与多级放坡开挖隧道基坑的隧道放坡开挖段；桥梁包括采用放坡开挖承台基坑的桥梁放坡开挖段与垂直开挖承台基坑的桥梁垂直开挖段；防干扰施工方法包括：步骤S1，设置隧道基坑放坡开挖的深度大于桥梁放坡开挖段的承台埋深，隧道基坑开挖、稳定后，施工桥梁桩基；步骤S2，在桥梁桩基施工完成后，同步进行隧道主体结构施工及桥梁放坡开挖段的承台施工；步骤S4，隧道基坑回填完成后，进行桥梁剩余结构的施工，实现桥梁放坡开挖段承台施工的前置，提升施工速度。
Anti-interference construction method for small-clear-distance bridge and tunnel combined structure
一种小净距桥隧组合结构防干扰施工方法
LIU FEI (Autor:in) / HOU CHAO (Autor:in) / DU MEI (Autor:in) / ZHANG LEIJUN (Autor:in) / AN GANGJIAN (Autor:in) / LU CHANGQING (Autor:in) / LI SHAOFEI (Autor:in) / GAO YI (Autor:in) / ZHAO HONGFEI (Autor:in) / YAO FEIFEI (Autor:in)
27.02.2024
Patent
Elektronische Ressource
Chinesisch
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