Cover-excavation top-down method permanent steel pipe column positioning device and construction method
A technology for positioning devices and steel pipe columns, 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: 2021-08-10
襄阳市中铁诚达工程检测有限公司 +2
View PDF11 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
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. larger
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[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", " The orientation and positional relationship indicated by "inner", "outer", "clockwise", "counterclockwise" etc. 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 It is not to be construed as limiting the specific protection scope of the invention that a device or element referred to must have a specific orientation, be constructed and operate in a specific orientation.
[0030] In addition, terms such as "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or imply...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a cover-excavation top-down method permanent steel pipe column positioning device and a construction method. According to the cover-excavation top-down method permanent steel pipe column positioning device and the construction method, a crane is used for hoisting a steel sleeve into a vertical pile column hole, a positioning cross front sight plate is arranged at the bottom of the steel sleeve, a synchronous traction motor on an operation platform is used for installing a positioning device into the steel sleeve, detected perpendicularity information is sent to a computer through a front sight of the positioning cross front sight plate and a laser plumb aligner on the operation platform, the computer sends an instruction to an electric driver in a double-rod synchronous electric push rod in the positioning device, the electric driver receives the instruction to drive an inner push rod and an outer push rod, and the steel pipe column is accurately positioned; and then concrete is poured into the steel pipe column. According to the positioning device and the construction method, the steel pipe column can be automatically and accurately positioned in the steel sleeve quickly and conveniently, the problems of safety risk of soft stratum foundation pit excavation operation, tedious steel pipe column positioning process and long consumed time are effectively solved, the installation progress of the steel pipe column is accelerated, the construction cost is saved, and the economic benefits of enterprises are improved.
Description
technical field [0001] The invention belongs to the technical field of underground space construction, and in particular relates to a positioning device and a construction method for a permanent steel pipe column in a cover-and-excavation method. Background technique [0002] For the construction of large-scale subway stations currently under construction, the cover-excavation method can effectively solve the problem of ground traffic relief, and for some foundation pits in weak ground, it can reduce the safety risk and support cost of foundation pit excavation. As a permanent structural column, the steel pipe column of the subway station bears the vertical load during 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. Therefore, during the cover-excavation method, The installation of the permanent steel pipe column in the middle is the k...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
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