close distance coal seam - Globe Thesis

Keyword [close distance coal seam] Result: 21 - 40 \| Page: 2 of 3
21.	Study On Gas Migration Law And Control Method Of Working Face Of First Mining Upper Protected Seam In Close Distance Coal Seam Group
22.	Research On Multi-field Coupling Effect Of Hydraulic Punching In Close Distance Coal Seam And Evaluation Of Pressure Release Gas Extraction Effect
23.	Study On Prevention And Control Technology System For Spontaneous Combustion In Shallow And Close Distance Coal Seam Group Of Suan Cigou Coal Mine
24.	Research On The Layout Of Mining Laneway And The Ventilation Corridor's Prevention In The Downward Mining Process Of The Group Of The Close Distance Coal Seam Easy To Burn
25.	Evolution Of The Mining Pressure Mechanism Surrounding Gob-side Entry And Control Method Of Close Coal Seams In Haishiwan Mine
26.	Study On Fire Prevention And Extinguishing Technology Of Close Distance Coal Seam Group Under The Influence Of Gas Drainage In Shanmushu Mine
27.	The Movement Of Upper Strata And The Pressure Behavior Of Close Distance Coal Seam Mining
28.	Lane Layers Arranged Level Gas Drainage Roadway On Upward Mining Of Close Distance Coal Seam Group
29.	Study On Layout And Support Technologyof Mining Roadway In Coal Seam Under Short Distance
30.	Recearch On Feasibility Of Upward Mining And Reasonable Location Of Roadway In Yongning Coal Mine
31.	Study On The Structural Characteristics Of Overlying Strata And Supporting Resistance In Fully Mechanized Mining Face Under Goaf Of Close Distance Coal Seam
32.	Research On Prevention And Control Technology Of Harmful Gas Intrusion In Close-up Coal Seam Under Fire Area
33.	Study On Layout And Support Design Of Track Lane Under Working Face In Extremely Close Distance Of Coal Seam Goaf In South Nine Mining Area Of Duerping Mine
34.	Research On The Law Of Fissure Air Leakage And Coal Spontaneous Combustion In The Mining Of Shallow Buried Close Distance Coal Seam Group
35.	Study On Layout Of Mining Roadway And Surrounding Rock Control Technology In Close Coal Seam Of Sanjiaohe Coal Mine
36.	Study On The Failure Law And Control Of Surrounding Rock Of Withdrawal Passage Under Close Goaf
37.	Research On Roof And Floor Crack Development Law Of Short Wall Filling Mining In Close Distance Coal Seam
38.	Study On The Spontaneous Combustion Characteristics And Prevention Of Close-Distance Coal Seam Group Mining In Xutuan Coal Mine
39.	Study On Surrounding Rock Control Technology Of Goaf Floor Roadway Under The Condition Of Close Coal Seam Spacing And Several Coal Pillars
40.	Study On Bolt Support Technology Of Roadway Under Goaf In Close Distance Coal Seam
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