Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Overhead mining face roadway system and construction method thereof

A technology of working face and roadway, which is applied in tunnels, tunnel linings, mining equipment, etc., can solve the problems of slow drainage speed, limited water release, and water accumulation in goafs of working faces, so as to achieve rapid drainage and prevent water damage accidents , to avoid the effect of a large amount of water

Pending Publication Date: 2021-12-31
CHINA ENERGY GRP NINGXIA COAL IND CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during mining, there will still be a large amount of water gushing out suddenly during the mining of the working face, causing a large amount of water in the goaf of the working face and even causing water damage accidents
[0003] In the prior art, the roof gushing water is discharged by drilling holes, the drilling construction period is long, and the drilling on site is affected by the diameter of the drilling hole, the amount of released water is limited, and the drainage speed is slow

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
  • Overhead mining face roadway system and construction method thereof
  • Overhead mining face roadway system and construction method thereof
  • Overhead mining face roadway system and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

[0054] like Figure 1-14 As shown, the roadway system of an upward mining face provided by an embodiment of the present invention includes a cutting eye 1, a transportation roadway 2 connected with the cutting eye 1, a drainage roadway 3 connected with the transportation roadway 2, and a boundary drainage roadway connected with the drainage roadway 3. Water Lane 4.

[0055] Along the direction from the front to the rear, the heights of the drainage lane 3 and the tran...

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 discloses an upward mining working face roadway system and a construction method thereof. The purpose of rapid drainage is achieved by reserving a roadway conveying drainage ditch and a drainage roadway. When the water inflow of the transportation roadway top plate is small, water can flow into the drainage roadway along a transportation roadway drainage ditch and a drainage roadway drainage ditch; when the water inflow of the transportation roadway top plate is large, the water can directly flow into the drainage roadway; sand and stones are blocked through a retaining wall; the water reaches the position of the sealing wall after overflowing the retaining wall; and then, the water is drained into a boundary drainage roadway through the drainage pipe. Water is drained through the boundary drainage roadway, rapid drainage can be achieved, a large amount of water is prevented from being accumulated in a working face goaf, and water damage accidents are effectively prevented.

Description

technical field [0001] The invention relates to the technical field of coal mining, in particular to a roadway system and a construction method of an upward mining face. Background technique [0002] The upward mining working face is the working face that advances up the hill during coal mining or mining, and its boundary area is low and the advancing direction is high. The working face is threatened by aquifer water damage during mining. In order to ensure the safe production of the working face, it is necessary to drain the water on the roof in advance. However, there will still be a large amount of water gushing out suddenly during the mining of the working face during mining, causing a large amount of water in the goaf of the working face and even causing water damage accidents. [0003] In the prior art, the roof gushing water is discharged by drilling holes, and the drilling construction period is long. The drilling on site is affected by the diameter of the drilling...

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 Applications(China)
IPC IPC(8): E21F16/00E21F17/00E21D11/15E21D11/00
CPCE21F16/00E21F17/00E21D11/003E21D11/152Y02A30/60
Inventor 马智马兴华张刚张学文鲍子荣胡秋萍
Owner CHINA ENERGY GRP NINGXIA COAL IND CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com