Title:
GRADING METHOD OF MINES/MINING AREAS FOR WATER-PRESERVED MINING
Document Type and Number:
WIPO Patent Application WO/2019/149146
Kind Code:
A1
Abstract:
A grading method of mines/mining areas for water-preserved mining, comprising: using a mine as a calculating unit to calculate the ton-coal water resource amount, and dividing the mine in a study area into different types according to the relationship between the distribution of the ton-coal water resource amount and the ton-coal water resource consumption amount, and forming a mine ton-coal water resource storage amount grade map; determining the thickness of a protective layer according to the relationship between the water leakage of a shallow surface layer and the water supply of the shallow surface layer, dividing the mine in the study area into different environmental engineering geological modes, and forming a mine environmental engineering geological mode distribution map; and finally, grading the mines/mining areas for water-preserved mining in the study area. The method is simple and practical, the water-preserved mining grade of the mines is divided visually, a basis for selecting a mining method in the mining area is provided, and a great significance for the water-preserved mining in fragile ecological environment areas in northwest China is achieved.
Inventors:
LI WENPING (CN)
WANG QIQING (CN)
FAN KAIFANG (CN)
LIU SHILIANG (CN)
WANG QIQING (CN)
FAN KAIFANG (CN)
LIU SHILIANG (CN)
Application Number:
PCT/CN2019/073155
Publication Date:
August 08, 2019
Filing Date:
January 25, 2019
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
International Classes:
E21C41/18
Foreign References:
| CN108316924A | 2018-07-24 | |||
| CN104504180A | 2015-04-08 | |||
| CN101070759A | 2007-11-14 | |||
| CN104612688A | 2015-05-13 | |||
| CN106640076A | 2017-05-10 | |||
| DE3537162A1 | 1987-04-23 |
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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