Steel pipe stake positioning and plumbing device for underground architecture

Abstract

The invention relates to an underground steel tube pile positioning vertical adjusting device, when constructing subway station or other underground buildings, wherein it is characterized in that: it is formed by ground positioning platform, steel protective cylinder, jack, slide track, steel tube post, steel ring, incline testing system, and jack vertical adjusting control system; the steel tube post is arranged inside the steel protective cylinder; the jack is arranged between the steel protective cylinder and the steel tube post; the bottom of jack is sliding connected to the slide track at the inner wall of steel protective cylinder; the steel tube post is fixed with incline testing sensor and connected to the incline testing displaying system; the jack is connected to the jack vertical adjusting control system. The invention has the advantages that: only 1 / 3 of whole depth is arranged with steel protective cylinder, to save steel proactive cylinder, and reduce the extended length of steel tube post, with high automatic degree.

Description

technical field [0001] The invention belongs to building construction operation devices, in particular to a positioning and vertical adjustment device for underground building steel pipe columns when a subway station or other underground buildings are constructed using the cover-excavation method. Background technique [0002] When using the cover-excavation method to construct a subway station, the underground indoor column should be a steel pipe column, and the lower end of the steel pipe column is connected to the foundation concrete pouring pile. The construction method of cover-excavation method is to first make the outer wall of the underground building and the concrete pouring pile, and then send the steel pipe column to the dark hole of the pouring pile full of mud, and dock with the upper end of the pouring pile. Since the steel pipe column is a structural column, the requirements on its positioning and verticality are very strict. However, when installing a steel p...

AI Technical Summary

Problems solved by technology

Its disadvantages are that when the hole is artificially lowered to a depth of tens of meters, the air does not circulate, the manual operation in the hole is noisy, and the temperature change is difficult to control. When the steel casing and the concrete pouring pile are not tightly connected, groundwater enters the casing The safety risk of the workers in the hole is high, and the cost of installing a steel casing for the full hole depth is high, which is not suitable for areas with high groundwater levels and strong groundwater; the upper corrective frame method: install a certain height above the pile hole ground The steel frame, the steel pipe column is fixed in the middle of the steel frame and inserted into the pile hole. After the bottom surface of the steel frame is positioned, the verticality of the steel pipe is adjusted by adjusting the upper end of the steel frame. The disadvantage is that the steel pipe column needs to increase the length above the ground, and the steel pipe consumption is large. ; When the underground steel pipe column is more than 30 meters deep, the upper rectification frame is short and the vertical adjustment error of the steel pipe column is large.

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