An in-situ reinforcement method for "U-shaped steel bracket"

A type of steel, in-situ technology, applied in the field of in-situ reinforcement of U-shaped steel brackets, can solve the problems of U-shaped steel bracket replacement construction difficulties, small underground roadway space, and increased support costs, so as to save economic costs, improve overall rigidity and The effect of strength and support performance improvement

Inactive Publication Date: 2020-01-07
CHINA UNIV OF MINING & TECH (BEIJING)
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the narrow space of the underground roadway, it is very difficult to replace the U-shaped steel support
In addition, U-shaped steel brackets or concrete-filled steel tube brackets with higher support strength are often used for replacement components. The original U-shaped steel brackets are discarded, resulting in waste of materials and a significant increase in support costs.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An in-situ reinforcement method for "U-shaped steel bracket"
  • An in-situ reinforcement method for "U-shaped steel bracket"
  • An in-situ reinforcement method for "U-shaped steel bracket"

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0022] The present invention provides a "U-shaped steel bracket" in-situ reinforcement method. In order to make the purpose, technical solution and effect of the invention more clear and definite, the schematic diagram of this invention is used below to further describe its implementation in detail. It should be understood that the illustrations of the invention described here are only used to explain the invention, not to limit the invention. The specific implementation is as follows:

[0023] An in-situ reinforcement method for a "U-shaped steel bracket" is divided into the following steps: the U-shaped steel bracket (6) to be reinforced remains stationary, and two "["-shaped reinforcement devices ( 1), inject concrete (7) from the bolt hole (3) of the "["-shaped reinforcement device (1) to the gap formed between the "["-shaped reinforcement device (1) and the U-shaped steel bracket (6), and finally use the bolt ( 5) and "凵" shaped fixing device (2) fix two "[" shaped reinf...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technical field of roadway reinforced supporting. U-shaped steel supports are common supporting members of roadways, but are often damaged in application and need to be reinforced. The invention discloses an in-situ reinforcing method for a U-shaped steel support. The in-situ reinforcing method for the U-shaped steel support comprises the steps that a U-shaped steel support to be reinforced is kept still, two reinforcing devices in the shape of [ are arranged symmetrically on both sides of the U-shaped steel support to be reinforced in an inlaid mode, concrete is injected into hole gaps between the reinforcing devices in the shape of [ and the U-shaped steel support to be reinforced, and finally, the two reinforcing devices in the shape of [ are fixed as a whole by bolts and a U-shaped fixing device. According to the in-situ reinforcement method for the U-shaped steel support, the problem that the U-shapes steel support is difficult to reinforce is solved,and the in-situ reinforcement method for the U-shaped steel support has the advantages of being convenient and fast to construct, safe and reliable, good in supporting performance, and detachable andreusable.

Description

technical field [0001] The invention belongs to the technical field of roadway reinforcement and support, and relates to an in-situ reinforcement method for U-shaped steel supports. [0002] technical background [0003] Coal is the most important energy consumption in our country, and the rapid and efficient mining of coal must be maintained for a long time to come. In recent years, with the depletion of shallow coal resources, the mining depth of coal is increasing. However, with the increase of mining depth, various problems become increasingly prominent, among which the effective support of the roadway is the most important problem. As far as the current roadway support methods are concerned, there are mainly anchor net support, anchor spray support, anchor net spray support, anchor cable support, anchor net cable support, U-shaped steel support, U-shaped steel support and anchor support. Net cable joint support, etc. Among these supports, U-shaped steel bracket is a m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/18
CPCE21D11/18
Inventor 刘德军左建平刘海雁李猛李英杰张堂亮
Owner CHINA UNIV OF MINING & TECH (BEIJING)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap