Assembled type four-combined-round-steel-pipe concrete inner support structure and manufacturing method

A technology in support structure and concrete, applied in basic structure engineering, excavation, construction, etc., can solve the problems of high cost, complicated concrete support construction, long construction period, etc., to save steel consumption, reduce concrete consumption, and ensure processing quality. Effect

Inactive Publication Date: 2017-01-25
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide a kind of rigidity big, reusable, reduce cost, be used as the inner support structure and the manufacturing method of four combined circular steel tube

Method used

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  • Assembled type four-combined-round-steel-pipe concrete inner support structure and manufacturing method
  • Assembled type four-combined-round-steel-pipe concrete inner support structure and manufacturing method
  • Assembled type four-combined-round-steel-pipe concrete inner support structure and manufacturing method

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Embodiment Construction

[0049] The basic idea of ​​the invention is to form a reusable internal support system with good integrity, high rigidity and good integrity by assembling and assembling circular steel tube concrete inner support members.

[0050] The technical scheme of the present invention will be further specifically described below through an embodiment of a subway station foundation pit in conjunction with the accompanying drawings. The standard excavation width in the middle of the foundation pit is 21.7m, and the excavation width in the expanded section at the end is 25.1m. In this example, according to the width requirements of the foundation pit, the standard straight brace is divided into three specifications: 1m, 2m, 3m, and 6m, and the length of the short straight brace is less than 1m.

[0051] Such as Figure 1-12 Shown, the prefabricated four combined circular steel tube concrete inner support structure of the present invention. There are 4 different types of standard braces,...

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Abstract

The invention relates to an assembled four-piece combined circular steel pipe concrete inner support structure and a manufacturing method, and belongs to the technical field of support and support in foundation pits of subway stations. The prefabricated four combined circular steel pipe concrete inner support structure includes different types of circular steel pipe concrete straight supports. Including short straight stay and standard straight stay. The straight supports are connected to each other by high-strength bolts. All components are composed of ultra-high-strength concrete filled round steel pipes, and the cross-sections of four round steel pipes are arranged in a square. The present invention satisfies the splicing needs of supports in foundation pits of different lengths by combining different forms of component lengths, and provides an assembled combined circle with high rigidity, reusability and low cost, which can be used as internal supports in the foundation pit or shaft enclosure structure system The inner support structure of concrete filled steel tube can effectively solve the problems of complex construction and high cost of concrete support. The comprehensive benefit is remarkable, and it has important engineering application value and development prospect.

Description

technical field [0001] The invention relates to an assembled composite circular steel pipe concrete inner support structure used for deep foundation pit or vertical well enclosure support structure and a manufacturing method, in particular to a kind with good integrity, which can strictly control the deformation of the enclosure structure and can be reused The invention discloses a prefabricated four-piece combined circular steel tube concrete inner support structure and a manufacturing method thereof, which belong to the technical field of inner support and support in foundation pits of subway stations. Background technique [0002] At present, the construction of urban rail transit has become an indispensable part of urban construction. Since rail transit lines are built deeper and deeper in order to realize transfers between lines, deformation needs to be strictly controlled during construction. Construction methods for subway construction mainly include open-excavation ...

Claims

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Application Information

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IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 张明聚王子田李少华
Owner BEIJING UNIV OF TECH
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