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Patent Searching and Data


Title:
WATER-PRESERVING MINING METHOD FOR CLOSE-DISTANCE COAL SEAM GROUP
Document Type and Number:
WIPO Patent Application WO/2016/086602
Kind Code:
A1
Abstract:
A water-preserving mining method for a close-distance coal seam group. A defining range for all the parameters capable of realizing water-preserving mining is obtained according to fixed parameters, including coal seam burying depth and the distance between two coal seams of close-distance coal seams and the mining depths of the upper and lower coal seams. The parameters provided by the method are concise, which can provide guidance for the water-preserving mining of the similar close-distance coal seams in western mine areas and have very strong practicability.

Inventors:
MA LIQIANG (CN)
QIN BOTAO (CN)
WANG HUI (CN)
SUN HAI (CN)
JIN ZHIYUAN (CN)
Application Number:
PCT/CN2015/078730
Publication Date:
June 09, 2016
Filing Date:
May 12, 2015
Export Citation:
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Assignee:
UNIV CHINA MINING (CN)
International Classes:
E21C41/16
Foreign References:
CN104453903A2015-03-25
CN102505943A2012-06-20
CN1963148A2007-05-16
CN101021154A2007-08-22
CN102767371A2012-11-07
CN103790586A2014-05-14
US6672674B22004-01-06
Attorney, Agent or Firm:
NANJING RUIHONG PATENT AND TRADEMARK OFFICE (GENERAL PARTNERSHIP) (CN)
南京瑞弘专利商标事务所(普通合伙) (CN)
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