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

A support structure and a technology in concrete, which is applied in basic structure engineering, excavation, construction, etc., can solve problems such as long construction period, high cost, and complicated concrete support construction, and achieve processing quality assurance, saving steel consumption, and reducing concrete consumption 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 the assembly type three combined circ

Method used

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  • Assembled type three-combined-round-steel-pipe concrete inner support structure and manufacturing method
  • Assembled type three-combined-round-steel-pipe concrete inner support structure and manufacturing method
  • Assembled type three-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 21.1m, and the excavation width in the expanded section at the end is 24.6m. 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 As shown, the prefabricated three combined circular steel pipe concrete inner support structure of the present invention. There are 4 different types of standard bra...

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Abstract

The invention relates to an assembled three-piece combined circular steel pipe concrete inner support structure and a manufacturing method, which belong to the technical field of support and support in foundation pits of subway stations. The prefabricated three 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 the three round steel pipes are arranged in an inverted triangle. The present invention satisfies the splicing needs of supports in foundation pits of different lengths through the combination of different forms of component lengths, and provides a high rigidity, reusable, cost-reduced assembly-type combined circle 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 three-piece combined circular steel pipe concrete inner support structure and a manufacturing method thereof, which belong to the technical field of 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 metho...

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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