Positioning and verticality adjusting device for rectangular latticed column of foundation pit by reverse construction method

A technology of rectangular grid and reverse method, which is applied in the direction of foundation structure engineering, underwater structures, water conservancy projects, etc., and can solve problems such as easily disturbed lattice columns, affecting the final forming effect of engineering piles, foundation pit engineering construction quality, etc.

Pending Publication Date: 2019-07-16
CHINA RAILWAY CONSTR ENG GROUP
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  • Abstract
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Problems solved by technology

At present, the technology of lattice column positioning is relatively mature and the effect is good, but there are still major defects in constructability, especially in the process of pouring and tamping

Method used

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  • Positioning and verticality adjusting device for rectangular latticed column of foundation pit by reverse construction method
  • Positioning and verticality adjusting device for rectangular latticed column of foundation pit by reverse construction method
  • Positioning and verticality adjusting device for rectangular latticed column of foundation pit by reverse construction method

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and typical embodiments.

[0032] exist figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Figure 6 Among them, the positioning and vertical adjustment device of the rectangular lattice column of the foundation pit by the reverse method of the present invention is characterized in that the main body includes a base 1, a frame body 2, a top operating platform 3, a walking ladder 4, a bottom support adjustment bracket 5 and a vertical adjustment bracket 6, in:

[0033] The base 1 is fixed on the foundation foundation, and is served by on-site concrete pouring parts or prefabricated parts, and an extension hole 11 with a diameter slightly larger than the diameter of the corresponding engineering pile 8 of the lattice column 7 is arranged in the middle;

[0034] The main body of the frame body 2 is in the shape of a solid rectangular frame, and is composed of ...

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Abstract

The invention relates to a positioning and verticality adjusting device for a rectangular latticed column of a foundation pit by a reverse construction method. The positioning and verticality adjusting device comprises a base and a rigid frame body. An extending hole for an engineering pile is formed in the base, the frame body is formed by interconnecting the end parts of vertical upright rods, transverse connecting rods and inclined connecting rods, the bottom, the lower part and the upper part of the frame body are respectively provided with a bottom supporting and adjusting bracket capableof adjusting and limiting the verticality of the frame body and upper and lower positioning brackets capable of accurately adjusting limiting the latticed column in a vertical state by virtue of theframe body, the top of the frame body is provided with an operation platform which comprises an operation platform surface, a guard fence, a protection door, a hopper bracket and a hopper and is convenient for safely and vertically pouring concrete, the poured concrete naturally falls along with a pouring guide pipe at the axis position of the latticed column to be poured, impact disturbance on the latticed column is avoided, the positioning accuracy of the positioning and perpendicularity adjusting device cannot be affected, construction is convenient and efficient, the final forming effect of the poured engineering pile and the construction quality of foundation pit engineering can be guaranteed, and high practicability is achieved.

Description

technical field [0001] The invention relates to the technical field of foundation pit engineering construction facilities, in particular to a positioning vertical adjustment device for a rectangular lattice column of a foundation pit by an upside-down method. Background technique [0002] With the development of my country's building construction technology and the shortage of land resources in central cities, urban buildings are developing towards super high-rise buildings and deep foundation pits. In order to reasonably shorten the construction period of deep foundation pit buildings, it is undoubtedly the best choice to adopt the reverse method construction technology. Engineering pile + lattice column is a relatively common form of vertical support members of underground structures in the reverse method. Since lattice columns can be used as temporary vertical support members during earthwork excavation, they can also be used as formal structural columns during structure ...

Claims

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Application Information

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IPC IPC(8): E02D29/055E02D35/00
CPCE02D29/055E02D35/005
Inventor 刘培伟吴超杜建兵刘建男伍梁军车彦丰朱良智张涛刘磊李明伟牟咸骏熊贻飞王佳玺杨满
Owner CHINA RAILWAY CONSTR ENG GROUP
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