|
2024
|
Invention
|
Method for dewatering coal mine goaf by crossing neighboring goaf. A method for dewatering a coal... |
|
|
Invention
|
Method for constructing fixed monitoring pile for mining area with high phreatic water level. A m... |
|
|
Invention
|
Method for screening key stratum for overburden separation grouting in coal mine.
A method for s... |
|
2023
|
Invention
|
Intelligent gas mining method for closed working face of high-gas coal seam. An intelligent gas m... |
|
|
Invention
|
Method for methane extraction and closed-loop carbon fixation in stacked coal seams using hot flu... |
|
|
Invention
|
2 storage in unworkable seam. 22222222222 is stored. |
|
|
Invention
|
2 in partitioned sections. 222222 gas may be achieved. |
|
|
Invention
|
Method for draining water of coal mine goafs by crossing adjacent goaf. Disclosed in the present ... |
|
|
Invention
|
Water resource investigation method and system for mining subsidence waterlogged area. A water re... |
|
|
Invention
|
Pile arrangement method for fixed monitoring pile for use in high-groundwater-level mining area. ... |
|
|
Invention
|
Identification method and system for subsidence water area in mining region. Provided are an iden... |
|
|
Invention
|
Method and system for rapid updating of topographic map of mining area. The present invention pro... |
|
|
Invention
|
Key stratum screening method for overburden-separation grouting in a coal mine. Disclosed in the ... |
|
|
Invention
|
Level for surveying and mapping of mining subsidence area in coal-mining area, and surveying and ... |
|
|
Invention
|
Method and system for remotely measuring gas content in coal seam. 1221223212233, so as to measur... |
