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Guide pipe for steel stand column guide insertion construction

A technology of guide pipe and steel column, applied in the field of one column and one pile, can solve the problem that the verticality of construction can only reach 1/300, and achieve the effect of simple structure, high guiding precision and high vertical precision

Active Publication Date: 2017-02-22
上海开普天岩土科技集团有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current one-column-one-pile construction method can only reach 1 / 300 of the construction verticality

Method used

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  • Guide pipe for steel stand column guide insertion construction
  • Guide pipe for steel stand column guide insertion construction
  • Guide pipe for steel stand column guide insertion construction

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the drawings and embodiments.

[0020] Such as figure 1 As shown in 2, the guide pipe used for the guide insertion construction of the steel column of the present invention is made of a square steel pipe 20, the height H of the square steel pipe 20 is 3000-20000mm, the cross-sectional inner diameter of the square steel pipe 20 is 500-2000mm, and the square steel pipe 20 is A buoy verticality measuring device 21 is provided on one side.

[0021] Such as image 3 , As shown in 4, the buoy verticality measuring device 21 includes a water pipe 23 and a floating ball 22. The length of the water pipe 23 is L=6m, the inner diameter is Φ24mm, the lower end of the water pipe 23 is closed, the floating ball 22 is placed in the liquid in the water pipe 23, and is connected to the center of the lower end of the water pipe 23 by a rope 24. The measurement accuracy of the buoy verticality measuring device 21 is 1 / 7...

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Abstract

The invention relates to a guide pipe for steel stand column guide insertion construction. The guide pipe is manufactured by a square steel pipe; the height H of the square steel pipe is 3000-20000 mm; the section inner diameter of the square steel pipe is 500-2000 mm; and a buoy perpendicularity measuring device is arranged on one side of the square steel pipe. The buoy perpendicularity measuring device includes a water pipe and a floating ball; the length L of the water pipe is 6 m; the inner diameter is phi 24 mm; the lower end of the water pipe is closed; and the floating ball is positioned in liquid in the water pipe, and is connected to the center of the lower end of the water pipe through a rope. The measuring precision of the buoy perpendicularity measuring device is 1 / 700-1 / 1000. The guide pipe is used for a steel stand column guide insertion process, can guarantee high precision of one-column one-pole perpendicularity of at least above 1 / 600, and reduces later engineering problems caused by vertical deviations of steel stand columns.

Description

Technical field [0001] The invention relates to a one-pillar one-pile used for super deep and super large foundation pits, top-down top-down foundation pits, and subway transfer station foundation pits, in particular to a guiding pipe used for guiding and inserting steel columns. Background technique [0002] One column and one pile are widely used in ultra-deep and large foundation pits, top-down top-down foundation pits, and subway transfer station foundation pits. The verticality requirements for construction are much higher than that of ordinary engineering piles, and the general requirements are controlled at 1 / 500~1 / 600. The current one-pillar one-pile construction method can only achieve 1 / 300 verticality. How to ensure the high accuracy of the verticality of one column and one pile, at least 1 / 600 or more, and reduce the later engineering problems caused by the vertical deviation of the steel column? There is an urgent need for a steel column guide tube insertion method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42E04C3/32E04G21/00
Inventor 卢礼顺胡晓虎
Owner 上海开普天岩土科技集团有限公司
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