Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Combined construction method for road bridge
The invention discloses a combined construction method for a road bridge, which comprises the following steps: S1, drilling a pile: after geological exploration and selection are carried out according to the construction position of a bridge, a pile casing is buried in a soil layer by adopting a corresponding rotary drilling rig and a circulating drilling rig, prepared slurry is used in a drilled hole, the drilling process comprises two steps of centering and drilling, and the drilling process comprises two steps of centering and drilling; wherein the slurry is used for the drilling step, finally, a drilled hole is cleared and checked, then the prepared reinforcement cage is put into the drilled hole, and concrete is poured and formed. During construction, the foundation bearing capacity of the widening bridge is improved, and the pile foundation bearing capacity of the widening bridge is improved by adopting a cast-in-place pile post-grouting technology; the integral cast-in-place layer is arranged at the splicing seam between the existing bridge superstructure and the widened bridge superstructure, so that the settlement of the newly-built widened bridge can be effectively reduced, and the pavement settlement difference of the road bridge is reduced.
本发明公开了一种道路桥梁组合式施工方法，包括以下步骤：S1：钻孔桩：根据桥梁的施工位置进行地质勘探和选取后，采用相应的旋挖钻机及循环钻机，将护筒埋设于土层内，将制备好的泥浆在钻孔中使用，钻孔中包括对中和钻进两步，其中泥浆用于钻进步骤，最后将钻孔清除检查，然后在钻孔内将制备好的钢筋笼放入，混凝土灌注成型。本发明施工时提升拼宽桥梁的基础承载力，采用灌注桩后注浆技术提高拼宽桥梁的桩基承载力；在现有桥梁上部结构和拼宽桥梁上部结构之间的拼接缝处设置整体现浇层，能够有效减小新建拼宽桥梁的沉降，减小道路桥梁的路面沉降差。
Combined construction method for road bridge
The invention discloses a combined construction method for a road bridge, which comprises the following steps: S1, drilling a pile: after geological exploration and selection are carried out according to the construction position of a bridge, a pile casing is buried in a soil layer by adopting a corresponding rotary drilling rig and a circulating drilling rig, prepared slurry is used in a drilled hole, the drilling process comprises two steps of centering and drilling, and the drilling process comprises two steps of centering and drilling; wherein the slurry is used for the drilling step, finally, a drilled hole is cleared and checked, then the prepared reinforcement cage is put into the drilled hole, and concrete is poured and formed. During construction, the foundation bearing capacity of the widening bridge is improved, and the pile foundation bearing capacity of the widening bridge is improved by adopting a cast-in-place pile post-grouting technology; the integral cast-in-place layer is arranged at the splicing seam between the existing bridge superstructure and the widened bridge superstructure, so that the settlement of the newly-built widened bridge can be effectively reduced, and the pavement settlement difference of the road bridge is reduced.
本发明公开了一种道路桥梁组合式施工方法，包括以下步骤：S1：钻孔桩：根据桥梁的施工位置进行地质勘探和选取后，采用相应的旋挖钻机及循环钻机，将护筒埋设于土层内，将制备好的泥浆在钻孔中使用，钻孔中包括对中和钻进两步，其中泥浆用于钻进步骤，最后将钻孔清除检查，然后在钻孔内将制备好的钢筋笼放入，混凝土灌注成型。本发明施工时提升拼宽桥梁的基础承载力，采用灌注桩后注浆技术提高拼宽桥梁的桩基承载力；在现有桥梁上部结构和拼宽桥梁上部结构之间的拼接缝处设置整体现浇层，能够有效减小新建拼宽桥梁的沉降，减小道路桥梁的路面沉降差。
Combined construction method for road bridge
一种道路桥梁组合式施工方法
FANG YU (Autor:in) / CHEN ZETENG (Autor:in)
21.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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