Title:
MINING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/045440
Kind Code:
A1
Abstract:
A mining method comprises: dividing a mining area into multiple combined mining areas; carrying out open-pit mining in each combined mining area and forming a mining pit; carrying out underground mining on a side slope of the mining pit and forming multiple mined-out tunnels; and backfilling the mining pit in a previous combined mining area by using stripped wastes in a next combined mining area. The mining method benefits environment protection, saves costs, and has convenient operation and safe production.
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Inventors:
ZHAO XIA (CN)
Application Number:
PCT/CN2015/084749
Publication Date:
March 31, 2016
Filing Date:
July 22, 2015
Export Citation:
Assignee:
HAIXI BOAO PROJECT LTD (CN)
International Classes:
E21C41/26; E21C41/16; E21F15/00
Foreign References:
| CN104389606A | 2015-03-04 | |||
| CN102031972A | 2011-04-27 | |||
| CN102644464A | 2012-08-22 | |||
| CN102606160A | 2012-07-25 | |||
| CN102606161A | 2012-07-25 | |||
| CN103790589A | 2014-05-14 | |||
| US5782539A | 1998-07-21 |
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
北京英赛嘉华知识产权代理有限责任公司 (CN)
北京英赛嘉华知识产权代理有限责任公司 (CN)
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