Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pier column permanent steel casing construction method
The invention relates to a pier column permanent steel casing construction method which comprises the following steps: after excavation construction is carried out to a designed-level slope, drilling is carried out to form a pile hole with a designed depth; a pile casing construction platform is installed at a hole opening of the pile hole, then a steel pile casing with the designed length is lowered into the pile hole and connected with the pile casing construction platform, and meanwhile the designed height difference exists between the bottom of the steel pile casing and the inner bottom wall of the pile hole; and a gap between the outer wall of the steel casing and the wall of the pile hole is filled, and then operation of lowering a reinforcement cage and pouring concrete is conducted in sequence, so that the drilled pile is formed. The length and height of the bored pile are changed and adjusted through design, the bored pile can be constructed in advance when the slope is excavated to the top of the grade slope, the steel casing is additionally arranged and is lowered to the designed position to be fixed, and the steel casing and concrete poured in the later period form a permanent structure together, so that the earliest starting time of construction of the lower structure of the platform bridge is advanced, and the construction efficiency is improved. And the existing communication keeping problem is also solved.
本申请涉及一种墩柱永久钢护筒施工方法，由于在开挖施工至设计级别边坡后，钻孔形成设计深度的桩孔；在桩孔的孔口处安装护筒施工平台，然后将设计长度的钢护筒下放至桩孔内，并与护筒施工平台连接，同时使钢护筒的底部与桩孔的内底壁之间具有设计高度差；将钢护筒的外壁和桩孔壁之间的间隙填实，然后依次进行下放钢筋笼和浇筑混凝土操作，以形成钻孔桩。通过设计变更调整钻孔桩桩长及墩高长度，在边坡开挖至级坡顶时就可以即可提前施工钻孔桩，并且增加钢护筒，在下放到设计位置进行固定，将钢护筒和后期浇筑的混凝土一起形成永久性结构，使天桥下部结构施工最早开始时间提前，也解决了既有保通问题。
Pier column permanent steel casing construction method
The invention relates to a pier column permanent steel casing construction method which comprises the following steps: after excavation construction is carried out to a designed-level slope, drilling is carried out to form a pile hole with a designed depth; a pile casing construction platform is installed at a hole opening of the pile hole, then a steel pile casing with the designed length is lowered into the pile hole and connected with the pile casing construction platform, and meanwhile the designed height difference exists between the bottom of the steel pile casing and the inner bottom wall of the pile hole; and a gap between the outer wall of the steel casing and the wall of the pile hole is filled, and then operation of lowering a reinforcement cage and pouring concrete is conducted in sequence, so that the drilled pile is formed. The length and height of the bored pile are changed and adjusted through design, the bored pile can be constructed in advance when the slope is excavated to the top of the grade slope, the steel casing is additionally arranged and is lowered to the designed position to be fixed, and the steel casing and concrete poured in the later period form a permanent structure together, so that the earliest starting time of construction of the lower structure of the platform bridge is advanced, and the construction efficiency is improved. And the existing communication keeping problem is also solved.
本申请涉及一种墩柱永久钢护筒施工方法，由于在开挖施工至设计级别边坡后，钻孔形成设计深度的桩孔；在桩孔的孔口处安装护筒施工平台，然后将设计长度的钢护筒下放至桩孔内，并与护筒施工平台连接，同时使钢护筒的底部与桩孔的内底壁之间具有设计高度差；将钢护筒的外壁和桩孔壁之间的间隙填实，然后依次进行下放钢筋笼和浇筑混凝土操作，以形成钻孔桩。通过设计变更调整钻孔桩桩长及墩高长度，在边坡开挖至级坡顶时就可以即可提前施工钻孔桩，并且增加钢护筒，在下放到设计位置进行固定，将钢护筒和后期浇筑的混凝土一起形成永久性结构，使天桥下部结构施工最早开始时间提前，也解决了既有保通问题。
Pier column permanent steel casing construction method
一种墩柱永久钢护筒施工方法
ZHENG KANG (Autor:in) / MA JUNWEI (Autor:in) / LI YONG (Autor:in) / CHEN LONGLONG (Autor:in) / WANG PENG (Autor:in) / HAN SHENGLI (Autor:in) / SUN YONGLEI (Autor:in) / XU WEIZHEN (Autor:in) / LI BIN (Autor:in) / YAN YINQUAN (Autor:in)
26.03.2024
Patent
Elektronische Ressource
Chinesisch
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