A positioning device and construction method for a permanent steel pipe column with a cover-excavation method
A technology of positioning device and construction method, which is applied in artificial islands, water conservancy projects, infrastructure projects, etc., can solve the problems of difficulty in getting on and off the steel casing, high cost investment, cumbersome process, etc., to solve the safety risks of excavation operations, The effect of saving construction costs and improving economic benefits
Active Publication Date: 2022-06-28
襄阳市中铁诚达工程检测有限公司 +2
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Problems solved by technology
The current steel pipe column positioning mostly adopts manual positioning with steel sleeves, which is cumbersome and time-consuming, and it is not easy for personnel to get on and off the steel sleeves; while using the HPE hydraulic vertical insertion machine, the process is simple and fast, but the cost is high. bigger
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[0029] In the description of the present invention, it should be noted that for orientation words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", " Width, Thickness, Top, Bottom, Front, Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inside ", "outside", "clockwise", "counterclockwise" and other indications of orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.
[0030] In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relativ...
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A positioning device and construction method for a permanent steel pipe column with a cover-and-excavation method. The steel casing is hoisted into the hole of the vertical pile by a crane, and a positioning cross-sight plate is installed at the bottom of the steel casing, and the synchronous traction motor on the work platform is used. ,Put the positioning device into the steel casing, and send the detected verticality information to the computer through the positioning cross sight plate front sight and the laser plummet on the work platform, and the computer sends the electric driver in the double-rod synchronous electric push rod in the positioning device Send out an instruction, the electric driver receives the instruction to drive the inner and outer push rods, and after the precise positioning of the steel pipe column, concrete is poured into the steel pipe column; the device and construction method can quickly and conveniently realize automatic and accurate positioning of the steel pipe column in the steel casing, effectively It solves the safety risk of foundation pit excavation in soft ground, the cumbersome and time-consuming positioning process of steel pipe columns, speeds up the installation progress of steel pipe columns, saves construction costs, and improves the economic benefits of enterprises.
Description
technical field [0001] The invention belongs to the technical field of underground space construction, and in particular relates to a permanent steel pipe column positioning device and a construction method with a cover and excavation reverse method. Background technique [0002] For the construction of large subway stations currently under construction, the use of cover and excavation inverse method can effectively solve the problem of ground traffic relief, and for some weak foundation pits, it can reduce the safety risks and support costs of foundation pit excavation operations. As a permanent structural column, the steel tube column of the subway station bears the vertical load in the construction stage and the use stage. The construction process has very strict requirements on the installation accuracy including the column elevation, plane position and verticality. The installation of intermediate permanent steel pipe columns is the key to the quality and structural saf...
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IPC IPC(8): E02D29/055E02D15/08E02D13/04E02D5/38
CPCE02D29/055E02D15/08E02D13/04E02D5/38E02D2250/0023
Inventor 孙浩林姚海涛梁水斌刘永林赵晶马杰王传斌
Owner 襄阳市中铁诚达工程检测有限公司