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

Mining method for steep-inclination unstable thin ore body

A mining method and thin ore body technology, applied in the field of steeply inclined and unstable thin ore body mining, can solve problems such as ore body caving and safety hazards, achieve high efficiency, improve ore falling efficiency, and simple process

Inactive Publication Date: 2019-04-16
NORTHWEST RES INST OF MINING & METALLURGY INST
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the ore retention method is used to mine steeply inclined and unstable thin ore bodies, local ore body caving often occurs in the process of leveling large-area exposed spaces, rock drilling, and charging, causing great safety hazards

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
  • Mining method for steep-inclination unstable thin ore body
  • Mining method for steep-inclination unstable thin ore body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for mining steeply inclined unstable thin ore bodies, comprising the following steps:

[0018] A. The ore body is divided into ore blocks, the height of the ore block is 45m, and the width of the ore block is 60m; there is no spacer and top pillar in the ore block, only the bottom pillar 1, and the thickness of the bottom pillar 1 is 5m;

[0019] B. Mining and cutting: First, excavate the pedestrian patio 2, which is arranged at the footwall of the ore body 10m away. The pedestrian patio 2 is excavated from the pedestrian patio 2 at intervals of 5m to excavate the footwall layered along the vein transportation lane 3, and the footwall is layered along the vein The transportation roadway 3 excavates layered rock drilling piercing veins 4 every 6m to the middle of the ore body, and the adjacent layered rock drilling piercing veins 4 are arranged in a staggered manner. The space between the bodies also provides blasting compensation space for the first stratified ...

Embodiment 2

[0024] A method for mining steeply inclined unstable thin ore bodies, comprising the following steps:

[0025] A. Divide the ore body into ore blocks, the height of the ore block is 80m, and the width of the ore block is 100m; there is no spacer and top pillar in the ore block, only the bottom pillar 1, and the thickness of the bottom pillar 1 is 10m;

[0026] B. Mining and cutting: First, excavate the pedestrian patio 2, which is arranged at the footwall of the ore body 15m away. The pedestrian patio 2 is excavated from the pedestrian patio 2 at intervals of 10m to excavate the footwall layered along the vein transportation lane 3, and the footwall is layered along the vein The transportation roadway 3 excavates layered rock-drilling veins 4 every 10m to the middle of the ore body, and the adjacent layered rock-drilling veins 4 are arranged in a staggered manner. The space between the bodies also provides blasting compensation space for the first stratified recovery work;

...

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
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a mining method for a steep-inclination unstable thin ore body. The method comprises the following steps of A, dividing the ore body into ore blocks; B, conducting stope preparation and cutting; C, conducting stoping and ore removal on the ore blocks; D, conducting base pillar stoping, wherein after the work of conducting stoping and ore removal on the ore blocks is finished, waste rock is poured into a goaf, and the stoping work of ore block base pillars in the last stage is completed in a space between the waste rock and the ore block base pillar in the last stage. Bymeans of the mining method, when a traditional shallow hole shrinkage stoping method is adopted for mining the steep-inclination unstable thin ore body, the problem that the safety of personnel is poor during stoping work in a large-area exposed space is solved, and the method has the advantages of being simple in process and high in efficiency.

Description

technical field [0001] The invention relates to the technical field of underground mining methods, in particular to a method for mining steeply inclined unstable thin ore bodies. Background technique [0002] Compared with other major mining countries in the world, my country's mineral resources are obviously relatively insufficient in bulk mineral resources such as copper and iron, and rich in rare mineral resources such as tungsten and antimony in small amounts; there are few large and super-large deposits, and small and medium-sized deposits Many other features. The special resource occurrence status in my country determines that inclined thin veins have always been the main target of my country's mining technology research. Under normal circumstances, the mining of steeply inclined thin veins mostly adopts two mining methods: shallow hole retaining method and wall cutting and filling method. Among them, the wall cutting and filling method is mostly used for mining gold, ...

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): E21C41/22
CPCE21C41/22
Inventor 刘财林张海磊张睿周矿兵张亭孟慧媚周健强高志荣焦满岱严文炳
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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