Upward fan-shaped medium-length hole ore breaking subsequent filling mining method for gently inclined medium-thickness ore body

By using the mining method of dropping ore into fan-shaped medium-deep holes and then filling on gently inclined medium-thick ore bodies, the problems of low mining efficiency and poor safety are solved, and efficient and safe ore body mining and ground pressure control are achieved.

CN120592628APending Publication Date: 2025-09-05CENT SOUTH UNIV +2
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Patent Information

Application Number
CN202510977825.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-16
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

The existing mining methods for gently inclined medium-thick ore bodies have problems such as low mining efficiency, poor operation safety and difficulty in controlling ground pressure.

Method used

The mining method of upward fan-shaped medium-deep hole dropping and subsequent backfilling is adopted for gently inclined medium-thick ore bodies, including dividing the ore body into stages in the vertical direction, arranging transportation tunnels and veins, dividing vertical strips and disk areas along the strike, using medium-deep hole blasting and trackless scrapers to mine, combined with return air connecting roads and subsequent backfilling to form an independent mining operation space.

Benefits of technology

It improves production efficiency, enhances operation safety, effectively controls ground pressure, and realizes intelligent mining.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an upward fan-shaped medium-length hole ore breaking subsequent filling mining method for a gently inclined medium-thickness ore body, which is realized through the following technical scheme: arranging a stage haulage roadway, a mining preparation slope ramp, a transverse drift, an ore removal connection way and an ore receiving roadway on a footwall of the ore body, and dividing the ore body into parallel vertical strip blocks along the trend; an ore body is divided into panels in the trend, stage draw shafts and air return courtyards are arranged in the panels, the panels are divided into mining areas, studs are reserved between the mining areas, and air return connection ways are arranged in the studs; therefore, a relatively independent stoping operation space is formed, good air flow penetration is achieved, an ore removal line is fixed, a drill jumbo can be used for drilling a medium-length hole for ore breaking, a charging jumbo can be used for charging, and a trackless carry-scraper can be used for ore removal, so that the production operation efficiency is greatly improved, and intelligent mining is conveniently realized; the problems of low mining efficiency, poor operation safety, high ground pressure control difficulty and the like in the existing gently inclined medium-thick ore body mining process are effectively solved.
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