A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for accurately positioning steel pipe column of urban bridge and subway co-construction pile foundation
The invention discloses a construction method for accurately positioning a steel pipe column of an urban bridge and subway co-construction pile foundation. The construction method comprises the following steps that a positioning disc with a steel pipe column embedded in a steel pipe pile hole is adopted, the center and the elevation of the positioning disc are quickly determined through an orificepositioning frame arranged at a top opening of a steel casing, and the levelness of the positioning disc is checked and adjusted by using a leveling instrument; and through the orifice positioning frame at the top opening of the steel casing and a cross-shaped positioning frame arranged at a top opening of the steel pipe column, deviation is adjusted through a jack on the outer side of the top opening of the steel pipe column, so that the steel pipe column of the co-constructed pile foundation can be quickly and accurately positioned and mounted. The construction method fully considers construction conditions and safety risks in a steel pipe pile, the center and the elevation of the steel pipe column can be rapidly positioned through simple tools such as the orifice positioning frame, thecross-shaped positioning frame of the steel pipe column, the jack, the leveling instrument and a plumb bob, operation is easy and convenient, and the problems that the steel pipe column in the steelcasing is not easy to install and operate, and the positioning precision is difficult to meet the design requirement are solved.
本发明公开了一种城市桥梁与地铁共建桩基础钢管柱精确定位的施工方法，它采用钢管桩孔内埋设钢管柱的定位盘，定位盘通过钢护筒顶口设置的孔口定位架快速确定定位盘的中心、标高，水平尺检查调整定位盘水平，通过钢护筒顶口的孔口定位架与钢管柱顶口设置的十字定位架，利用钢管柱顶口外侧的顶托进行调整偏位，这样共建桩基础的钢管柱就能够快速精确定位安装。本发明充分考虑钢管桩内的施工条件和安全风险，利用孔口定位架、钢管柱的十字定位架、顶托、水平尺及吊线锤等简便用具，能够快速定位钢管柱的中心及标高，操作简便，解决了钢护筒内的钢管柱安装操作不易，定位精度难以满足设计的难题。
Construction method for accurately positioning steel pipe column of urban bridge and subway co-construction pile foundation
The invention discloses a construction method for accurately positioning a steel pipe column of an urban bridge and subway co-construction pile foundation. The construction method comprises the following steps that a positioning disc with a steel pipe column embedded in a steel pipe pile hole is adopted, the center and the elevation of the positioning disc are quickly determined through an orificepositioning frame arranged at a top opening of a steel casing, and the levelness of the positioning disc is checked and adjusted by using a leveling instrument; and through the orifice positioning frame at the top opening of the steel casing and a cross-shaped positioning frame arranged at a top opening of the steel pipe column, deviation is adjusted through a jack on the outer side of the top opening of the steel pipe column, so that the steel pipe column of the co-constructed pile foundation can be quickly and accurately positioned and mounted. The construction method fully considers construction conditions and safety risks in a steel pipe pile, the center and the elevation of the steel pipe column can be rapidly positioned through simple tools such as the orifice positioning frame, thecross-shaped positioning frame of the steel pipe column, the jack, the leveling instrument and a plumb bob, operation is easy and convenient, and the problems that the steel pipe column in the steelcasing is not easy to install and operate, and the positioning precision is difficult to meet the design requirement are solved.
本发明公开了一种城市桥梁与地铁共建桩基础钢管柱精确定位的施工方法，它采用钢管桩孔内埋设钢管柱的定位盘，定位盘通过钢护筒顶口设置的孔口定位架快速确定定位盘的中心、标高，水平尺检查调整定位盘水平，通过钢护筒顶口的孔口定位架与钢管柱顶口设置的十字定位架，利用钢管柱顶口外侧的顶托进行调整偏位，这样共建桩基础的钢管柱就能够快速精确定位安装。本发明充分考虑钢管桩内的施工条件和安全风险，利用孔口定位架、钢管柱的十字定位架、顶托、水平尺及吊线锤等简便用具，能够快速定位钢管柱的中心及标高，操作简便，解决了钢护筒内的钢管柱安装操作不易，定位精度难以满足设计的难题。
Construction method for accurately positioning steel pipe column of urban bridge and subway co-construction pile foundation
一种城市桥梁与地铁共建桩基础钢管柱精确定位的施工方法
LI JIANG (author) / SUN FENGXIANG (author) / WANG XIAOMIN (author) / YE SHAOQI (author) / LYU XINYANG (author) / SUN ZHENG (author) / LI LEI (author)
2020-07-24
Patent
Electronic Resource
Chinese
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