Shield vertical shaft assembling type concrete-filled steel tube inner support system and construction method thereof

A technology of concrete filled steel tube and support system, which is applied to shaft equipment, earthwork drilling, wellbore lining, etc., can solve the problems of complicated concrete support construction, poor overall stability, internal corrosion, etc., to save erection time, process quality assurance, and control The effect of shaft deformation

Inactive Publication Date: 2014-01-29
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the deficiencies in the existing shield shaft engineering support technology, the present invention provides a shield shaft assembly type concrete filled steel pipe inner support system and its construct

Method used

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  • Shield vertical shaft assembling type concrete-filled steel tube inner support system and construction method thereof
  • Shield vertical shaft assembling type concrete-filled steel tube inner support system and construction method thereof
  • Shield vertical shaft assembling type concrete-filled steel tube inner support system and construction method thereof

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Embodiment

[0048] A shield shaft is 22.8m long, 15.9m wide, and 30.77m deep. The support form of the enclosure structure adopts the fabricated steel pipe concrete inner support system. Including the shield shaft and the concrete-filled steel tube inner support system The concrete-filled steel tube inner support system is composed of a multi-layer concrete-filled steel tube inner support frame 14, including the concrete-filled steel tube purlin and the concrete-filled steel tube inner support, all of which are assembled from rectangular concrete-filled steel tube components. The rectangular concrete-filled steel tube member includes a rectangular concrete-filled steel tube standard straight brace 1, a rectangular concrete-filled steel tube right angle 2, a rectangular concrete-filled steel tube tee 3, and a rectangular concrete-filled steel tube short-circuit straight brace 4. The surrounding rectangular concrete-filled steel pipe standard straight brace 1, rectangular concrete-filled stee...

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Abstract

The invention relates to a shield vertical shaft assembling type concrete-filled steel tube inner support system and a construction method thereof and belongs to the technical field of shield vertical shaft inner support. The system comprises multiple layers of concrete-filled steel tube inner support frames. Each concrete-filled steel tube inner support frame is spliced by four kinds of rectangular concrete-filled steel tube components including standard rectangular concrete-filled steel tube straight supports, rectangular concrete-filled steel tube straight corners, rectangular concrete-filled steel tube tee joints and rectangular concrete-filled steel tube short connection straight supports. Fast component connection is completed by high-strength bolts. Each component is formed by filling micro-expansion concrete into steel tubes with rectangular sections. Assembling construction of the inner support system is achieved, the problems that steel support is poor in overall stability and small in rigidity and has internal rust are solved, the problems that concrete support is complex in construction and high in manufacturing cost are solved, and the concrete-filled steel tube inner support system is good in integrity and reusable, and capable of strictly controlling structural deformation.

Description

technical field [0001] The invention relates to a shield shaft assembled concrete-filled steel tube inner support system and a construction method thereof, in particular to a reusable steel tube concrete inner support system with good integrity, which can strictly control structural deformation, and belongs to the shield shaft inner support support technology. Background technique [0002] At present, the development of underground space has become an indispensable part of urban construction. There are more and more applications of shield tunneling. Steel support and concrete support are widely used in the construction of shield shaft engineering. The main problems in the application process of steel support are: the connection between the steel support and the waist (crown) beam is not reliable, and the overall stability is poor; the steel support has a small rigidity, and when the foundation pit span is large, the steel support will be unstable due to excessive deflection ...

Claims

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Application Information

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IPC IPC(8): E21D5/12
Inventor 张明聚郭雪源
Owner BEIJING UNIV OF TECH
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