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Combined recoverable steel pipe post and deep foundation pit support method thereof

A steel pipe column and combined technology, applied in excavation, infrastructure engineering, construction, etc., can solve problems such as transportation difficulties, unfavorable reuse, and reduction of construction costs

Pending Publication Date: 2018-09-21
THE 3RD ENG CO LTD OF CHINA RAILWAY 18TH BUREAU GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Subway stations (deep foundation pits) usually use lattice columns or steel pipe columns as vertical auxiliary supports for monolithic structures with large lateral lengths. When foundation pits have large spans and the stiffness (bearing capacity) of lattice columns cannot meet the design requirements , using larger diameter steel pipe columns instead of lattice columns, using on-site welding will affect the construction progress, and at the same time, the length is too large to be difficult to hoist, etc., and the use of off-site overall welding will cause transportation difficulties, etc.
[0003] Integral steel pipe columns are difficult to manufacture and transport and costly, difficult to dismantle and not conducive to reuse, and not conducive to the reduction of construction costs

Method used

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  • Combined recoverable steel pipe post and deep foundation pit support method thereof
  • Combined recoverable steel pipe post and deep foundation pit support method thereof

Examples

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Embodiment

[0025] figure 1 It is a structural schematic diagram of an embodiment of a combined recyclable steel pipe column and its deep foundation pit support method according to the present invention, figure 2 It is a schematic diagram of the clamp-type corbel structure of an embodiment of a combined recoverable steel pipe column and its deep foundation pit support method of the present invention. As shown in the figure, the present invention provides a combined recyclable steel pipe column, including a lower section steel pipe 2 permanently inserted into the enclosure pile and floor structure 1, a middle section steel pipe 3 connected with the lower section steel pipe 2 and a middle section steel pipe 3 connected with the middle section The steel pipe 4 in the upper section connected by the steel pipe 3; the steel pipe 4 in the upper section and the steel pipe 3 in the middle section and the steel pipe 3 in the middle section and the steel pipe 2 in the lower section are all connecte...

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Abstract

The invention discloses a combined recoverable steel pipe post, which comprises a lower part section steel pipe, a middle part section steel pipe and an upper part section steel pipe, wherein the lower part section steel pipe is permanently inserted into a structure of a fender post and a bottom plate; the middle part section steel pipe is connected with the lower part section steel pipe; the upper part section steel pipe is connected with the middle part section steel pipe; the upper part section steel pipe and the middle part section steel pipe are connected through a steel pipe post flange;the middle part section steel pipe and the lower part section steel pipe are connected through a steel pipe post flange; the upper part of the steel pipe post flange is provided with a clamp hoop; asupport plate is arranged at the upper part of the clamp hoop; a connecting beam used for supporting a foundation pit horizontal supporter is arranged on the support plate; a rib plate is arranged atthe outer side of the clamp hoop; the top end of the upper part section steel pipe is connected with the concrete connecting beam through a flange. The combined recoverable steel pipe post of the structure is used; the field hanging, combination connection and dismounting, transferring and storage are convenient; meanwhile, the cyclic use is convenient; the construction cost is reduced; the construction risk is reduced.

Description

technical field [0001] The invention relates to the technical field of deep foundation pit construction, in particular to a combined recoverable steel pipe column and a deep foundation pit support method thereof. Background technique [0002] Subway stations (deep foundation pits) usually use lattice columns or steel pipe columns as vertical auxiliary supports for monolithic structures with large lateral lengths. When foundation pits have large spans and the stiffness (bearing capacity) of lattice columns cannot meet the design requirements , Use steel pipe columns with larger diameters to replace lattice columns, use on-site welding to affect the construction progress, and at the same time, the length is too large and it is difficult to hoist, etc. The use of off-site overall welding will cause transportation difficulties. [0003] The fabrication and transportation of integral steel pipe columns are difficult and costly, and difficult to dismantle, which is not conducive t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D5/52
CPCE02D5/523E02D5/526E02D17/04
Inventor 温法庆孙连勇门燕青崔新壮王忠仁王磊卢途李强
Owner THE 3RD ENG CO LTD OF CHINA RAILWAY 18TH BUREAU GRP
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