Construction method of roadway confined concrete top-supporting and side-protecting system

A technology that constrains concrete and construction methods, which is applied in earthwork drilling, tunnels, tunnel linings, etc., can solve problems such as waste of resources, heavy weight, and high labor intensity, and achieve stability and reliability, effective installation and disassembly, The effect of improving construction efficiency

Active Publication Date: 2019-03-08
王琦 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the commonly used roof trim support, each group weighs about 5t, which is heavy and costly, requiring customization and a long processing cycle; for plain concrete columns, formwork, pouring and curing are required, and the construction is cumbersome and labor-intensive ;Other traditional axial load bearing devices have their own disadvantages
Moreover, supporting components such as U-shaped steel and steel mesh cannot be effectively recycled for secondary use, resulting in a huge waste of resources

Method used

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  • Construction method of roadway confined concrete top-supporting and side-protecting system
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  • Construction method of roadway confined concrete top-supporting and side-protecting system

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Embodiment Construction

[0039] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0040] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0041] As introduced in the background technology, there are deficiencies in the prior art. In order to solve th...

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Abstract

The invention discloses a construction method of a roadway confined concrete top-supporting and side-protecting system. The problems that in the prior art, the roadway supporting cost is high, and recycling cannot be achieved are solved; and the construction method has the technological means that the construction speed is high, and roadway supporting materials can be recycled. The construction method of the roadway confined concrete top-supporting and side-protecting system is characterized in that two or more sets of top-supporting columns, side-protecting pieces and longitudinal connectingpieces are included; the tops of the top-supporting columns are used for supporting the top of a roadway, and the side parts of the top-supporting columns are provided with shaft sleeves; the side-protecting pieces are connected with the corresponding two adjacent sets of top-supporting columns, and one or two sides of the side-protecting pieces are provided with pin shafts matched with the shaftsleeves; and the longitudinal connecting pieces are arranged on one or two sides of the side-protecting pieces and connected with the corresponding two adjacent sets of top-supporting columns, or theside-protecting pieces and the top-supporting columns are fastened through the longitudinal connecting pieces.

Description

technical field [0001] The invention relates to the field of roadway support, in particular to a construction method of a roadway restrained concrete roof support system. Background technique [0002] During roadway excavation, in order to prevent the gravel in the goaf from pouring into the entry retention and affect the coal mining process, it is necessary to carry out gangue support for the gravel in the goaf. At present, the commonly used gangue retaining measures are mainly U-shaped steel brackets and metal meshes to initially block the crushed stones along the side wall, and then adopt axial compression such as top-cutting support brackets and plain concrete columns on the outside of the U-shaped steels and metal meshes. The bearing device supports the roadway roof. [0003] Under this kind of support scheme, the sequential erection and installation of reinforcement mesh, U-shaped steel and axial pressure bearing device are required. For the commonly used roof trim s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F15/04E21D11/10E21D11/15E21D15/44
CPCE21D11/10E21D11/107E21D11/152E21D15/44E21F15/04
Inventor 王琦江贝曾昭楠
Owner 王琦
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