Method for controlling floor heave through inverted arch anchoring beam

A technology of reverse bottom arch and anchoring beam, which is applied in the directions of bolt installation, earthwork drilling, wellbore lining, etc., can solve the problems that the bottom drum, the bottom beam and the anchoring can not be cooperatively carried, and the role of anchoring engineering is not considered, and achieves a large scale. The effect of support

Inactive Publication Date: 2013-01-02
CHINA UNIV OF MINING & TECH
View PDF5 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it still treats the floor of the roadway as a flat bottom, and does not consider applying the anchoring project to the anti-bottom arch beam to deal with the bottom pl

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
  • Method for controlling floor heave through inverted arch anchoring beam

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] The specific implementation of the present invention will now be described in conjunction with the method of controlling the bottom drum near the horse head gate of a certain mine using the inverted bottom arch anchor beam:

[0020] 1. Undercover. The floor brush expansion shape of the entire Matoumen area is inversely curved with a radius of 8300mm. Actually, it should be slightly over-excavated, but the maximum over-excavation amount should not exceed 200mm. When brushing the horizontal shaft within 10m of the north and south sides of the shaft, the 650mm thick side part of the horse head gate must be protected. After the wall foot is excavated, the formwork must be installed in time, and the reinforced concrete must be poured. The reinforcement layout requirements and the requirements of the concrete must be compared with the original horse. The head door design is the same.

[0021] 2. Bottom grouting. The grouting hole depth of the bottom plate is 2400mm, and each sec...

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

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for controlling a floor heave through an inverted arch anchoring beam. The method comprises the following steps of: constructing a grouting pipe, an anchor cable or a high-strength anchor rod and other prestressed anchorage systems on an inverted arch of a constructed tunnel, forming a bottom beam and an anchoring beam coupled through the prestressed anchoring function, cooperatively exerting the active and passive supporting functions, and fulfilling the aim of controlling the bottom plate for a long time. In addition, longitudinal reinforcing ribs are connected between the inverted arch beams, and concrete is poured, so that the whole control system can exert greater supporting functions. The floor heave can be effectively controlled in a developing entry with high dynamic pressure or a developing tunnel with long service time and heading engineering, and the application prospect is wide.

Description

technical field [0001] The invention relates to a method for controlling a floor drum by an anti-bottom arch anchor beam, and is especially suitable for the stability control of surrounding rocks or bottom plates of chambers in coal mines, metal mines, subways, civil air defense projects and underground space projects. Background technique [0002] The swelling of the floor of the roadway or chamber is a common problem encountered in coal mines, metal mines, subways, civil air defense projects and underground space projects. In particular, due to the influence of mining pressure during coal mining or secondary superimposed stress during roadway digging, the convergence deformation around the roadway or chamber is serious, and the bulge of the floor reaches more than half of the approaching amount of the roof and floor, or even reaches 90%. Roadways or chambers need to be repaired every 2 to 3 months, and the amount of repair work even exceeds the amount of newly excavated ro...

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
IPC IPC(8): E21D11/00E21D11/10E21D20/02E21D21/00
Inventor 郑西贵张农吴继忠窦红平赵金明杨高干
Owner CHINA UNIV OF MINING & TECH
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