Title:
COMBINED MINING METHOD FOR UNDERGROUND MINE
Document Type and Number:
WIPO Patent Application WO/2023/142303
Kind Code:
A1
Abstract:
A combined mining method for an underground mine, comprising: constructing a hanging-wall strike drift (10) on an ore body hanging wall, constructing a foot-wall strike drift (1) on an ore body foot wall, constructing a hanging-wall cross drift (11) on the ore body hanging wall, constructing a foot-wall cross drift (2) on the ore body foot wall, constructing a ventilation man raise (12) and a sublevel drilling tunnel (13) in a hanging-wall ore body, constructing a medium-length hole (17) in the hanging-wall ore body, and transporting blasted ores out of a stope by means of a sublevel open-stoping method room ore outlet route (16) of a sublevel open-stoping method room (A); and after the sublevel open-stoping method room is stoped and filled, mining a stage open-stoping method room (C) located on a foot-wall ore body, downwards constructing a downward deep hole (6) in a drilling chamber (4), and transporting the blasted ores out of the stope by means of a stage open-stoping method room ore outlet route (5). The method has the advantages of being good in safety, easy to construct, high in resource recovery rate and the like, and is particularly suitable for popularization and application in underground mines of thick and large steeply inclined ore bodies where surrounding rocks are very broken.
Inventors:
LI XIAOGANG (CN)
ZHAO YUNTAO (CN)
YU LIUPING (CN)
HAO XUERAN (CN)
WEI BINGBING (CN)
XU CUIYUN (CN)
TANG ZHI (CN)
ZHAO YUNTAO (CN)
YU LIUPING (CN)
HAO XUERAN (CN)
WEI BINGBING (CN)
XU CUIYUN (CN)
TANG ZHI (CN)
Application Number:
PCT/CN2022/092444
Publication Date:
August 03, 2023
Filing Date:
May 12, 2022
Export Citation:
Assignee:
SINOSTEEL MAANSHAN GENERAL INSTITUTE OF MINING RES CO LTD (CN)
HUAWEI NATIONAL ENGINEERING RES CENTER OF HIGH EFFICIENT RECYCLE AND UTILIZATION FOR METALLIC MINERA (CN)
HUAWEI NATIONAL ENGINEERING RES CENTER OF HIGH EFFICIENT RECYCLE AND UTILIZATION FOR METALLIC MINERA (CN)
International Classes:
E21C41/16
Domestic Patent References:
| WO2021236000A1 | 2021-11-25 |
Foreign References:
| CN114396281A | 2022-04-26 | |||
| CN114396280A | 2022-04-26 | |||
| CN108894785A | 2018-11-27 | |||
| CN111852478A | 2020-10-30 | |||
| CN111927452A | 2020-11-13 | |||
| CN107939402A | 2018-04-20 | |||
| CN107989614A | 2018-05-04 | |||
| CN106121648A | 2016-11-16 | |||
| US3712677A | 1973-01-23 |
Attorney, Agent or Firm:
MA'ANSHAN CITY JINQIAO PATENT AGENT LTD. (CN)
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