protective coal seam - Globe Thesis

Keyword [protective coal seam] Result: 1 - 20 \| Page: 1 of 2
1.	Deformation And Permeability Distribution Rule Of Overlying Outburst Seam In Exploiting Extra-Thin Protective Seam By Drilling Method And Its Application In Pressure Relief Gas Drainage
2.	Cooperative Control Of Gas Disaster During Mining Of Thin And Short Distance Upper Protective Coal Seam In Deep Coal Mine
3.	Study On The Depressurization Effect Produced By Exploitation Of Lower Distant Protective Coal Seam And Elimination Of Outburst Hazard Of The Protected Seams By Applying Gas Drainage With Surface Boreholes
4.	Study On Technology Of Bores Through Coal And Rock Seams Draining Long Distance Pressure Relief Gas In Bed Plate Tunnel
5.	Study On Technology Of Surface Drillings Draining Pressure Relief Gas Of Coal Seam By Protected
6.	Study On The Released Range And The Critical Interlayer Spacing Of Upper Protective Coal Seam With Closed Distance
7.	Study On The Technology Of Pingdingshan Twelve Mine Upper Protective Coal Seam Exploitation
8.	Study On Gas Migration For Extreme Close Range Upper Protective Coal Seam Exploitation In No.5 Mine, Pingdingshan
9.	Relief Features Development Of Underlying Coal Seam After Mining The First Coal Seam In The Hexi Coalmine
10.	Study On The Pressure-unloading Area And Effect For Far Distance Lower-protection Mining Of Xing Ji Coal Mine
11.	Investigation On Protection Range In Exploiting The Upper-protective Coal Seam Under The Igneous Rock
12.	Theory Of Coal And Gas Outburst Prevention During Mining And Key Technology Research In Upper Cover Of Hongling Coal Mine
13.	Research Of The Fracture Development And Gas Drainage Technology In Non-pillar Protective Coal Seam Mining
14.	Study On Multiple Pressure Relief Effect And Relief Methane Drainage In Coal Seam Group Exploitation
15.	Methane Flow Model Of The Near Distance Lower Protective Coal Seam Based On COMSOL
16.	Study On The Protected Range And The Law Of Gas Migration Of Upper Protective Coal Seam With Closed Distance
17.	Study On The Depressurization Effect Produced By Exploitation Of Lower Protective Coal Seam
18.	Mechanical Behavior Evolution Of Mining Stope And Gas Control Technology
19.	Damage&Permeability Development Of Unloading Coal Body During Mining The Protective Coal Seam
20.	Variation Law And Engineering Application Of Protected Range For Deeply Buried Upper-protective Layer Mining In Different Inclination Of Coal Seams
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