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

Pre-set space filling mining method without top column and bottom column

A technology of filling mining method and pre-set space, which is applied in ground mining, underground mining, special mining, etc. It can solve the problems of high mining cost, lagging filling work, high investment in filling system construction, and reduce ore loss rate and filling. The effect of cost and economic benefit improvement

Active Publication Date: 2015-06-03
CENT SOUTH UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The filling mining method can effectively solve the problems of goaf treatment and ground pressure management in underground mines, and provides a guarantee for safe mining in mines. High disadvantages reduce the economic benefits of mines, especially some mines are facing a lack of filling raw materials, which leads to a delay or stop of filling work, so that the goaf cannot be filled in time, which not only affects the smooth mining of adjacent ore bodies, but also affects the safety of mines. Production has left a major safety hazard

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
  • Pre-set space filling mining method without top column and bottom column
  • Pre-set space filling mining method without top column and bottom column
  • Pre-set space filling mining method without top column and bottom column

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] see figure 1 , figure 2 , image 3 and Figure 4 , excavating a horizontal vein-along roadway 11 in the surrounding rock of the ore body footwall, and excavating a vein-piercing roadway 1 to connect the stope and the horizontal vein-along roadway to form a transportation system in the mining area. When the stope is divided, the upper and middle stopes are staggered. Drill and cut the raised well 6 along one side of the stope, and use the cut raised well 6 as the blasting free surface to form a cutting groove, and use it as a blasting free surface for large-scale mining. Excavate the mining channel 3 in the surrounding rock of the footwall of the middle section, and excavate the ore-receiving trench 15 in the bottom area of ​​the middle section, and complete the bottom structure engineering of the middle section of the mine; enter the ore body from the vein-...

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 a pre-set space filling mining method without a top column and a bottom column. In the pre-set space filling mining method, the self-bearing capability of top and bottom plates and a surrounding rock is sufficiently utilized, and a filling manner of a pre-set space is used for filling a goaf in an allowable exposure area range of a stope; after the recovery of the stope is finished, a bottom structure is recycled immediately and high-strength concrete filling materials are used for filling a bottom plate region to be used as an artificial top column for exploiting an ore body of a next middle section; a barren rock cementing filling material is used for filling the goaf; the filling height and the filling volume are determined according to actual conditions of a goaf shape and the surrounding rock stability; the pre-set space and the goaf are in an incomplete top tight filling state. The pre-set space filling mining method is particularly suitable for mining underground mines by adopting the filling mining method under the conditions that raw materials are lacked or the raw materials are in short supply, and has the characteristics of being safe to work, high in production efficiency, low in ore loss, low in mining cost and the like.

Description

technical field [0001] The invention relates to a filling mining method for underground mines, in particular to a filling mining method without leaving a preset space for top and bottom pillars, which is suitable for the lack of filling materials or insufficient supply of underground mines, and the roof and floor of the ore body are relatively stable. Mining of inclined or sharply inclined ore bodies. Background technique [0002] The filling mining method can effectively solve the problems of goaf treatment and ground pressure management in underground mines, and provides a guarantee for safe mining in mines. High disadvantages reduce the economic benefits of mines, especially some mines are facing a lack of filling raw materials, which leads to a delay or stop of filling work, so that the goaf cannot be filled in time, which not only affects the smooth mining of adjacent ore bodies, but also affects the safety of mines. Production has left a major safety hazard. Content...

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): E21C41/18
Inventor 周科平李杰林李斌邓红卫胡建华杨念哥高峰
Owner CENT SOUTH UNIV
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