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Keyword [Coal Pillars]
Result: 41 - 60 | Page: 3 of 3
41. Research On The Technology Of Small Coal Pillars And Pressure Relief To Protect Roadway For 6m Mining Height In Fusheng Coal Mine
42. Regularity And Control Of Mining Pressure Induced By Overlying Non-equal Width Coal Pillars In The Mining Process Of Middle Coal Seam With Composite Pillar Residual Areas
43. Study On Mechanism Of Overburden Fracture And Control Of Surrounding Rock Of Across Road Way Stope In Passing Abandoned Roadway
44. Study On The Influence Of Double-Section Coal Pillars Left Behind By The Short-Distance Protective Layer On The Protection Range Of The Protected Layer
45. Research On Reasonable Width Of Coal Pillars In Thick Coal Seam's Fully Mechanized Caving Face
46. Chain-Failure Mechanism And Control Of Residual Coal Pillars Under The Upward Mining-Induced Influence
47. Research On Reasonable Width And Stability Of Section Coal Pillars In Deep Fully Mechanized Caving Mining
48. Research On Optimization Of Coal Pillars In Section Of Fully Mechanized Mining Face In Near Shallow Buried Thick Bedrock "Three Hard" Coal Seams
49. Study On Reasonable Width And Stability Of Coal Pillars Adjacent To Goaf
50. Safety Evaluation Of 1026 Working Face DF68 Without Coal Pillars In Wugou Coal Mine
51. Flexible Anchorage Of Road Driving Along Goaf With Large Dip Angle Under Goaf Research And Application Of Supporting Technology
52. Study On Dynamic Instability Mechanism And Prevention Of Overlying Coal Pillars In Shallow Buried And Close Distance
53. Study On The Load Transfer Mechanism Of Overlying Coal Pillars Mined Out Of Shallow Buried Coal Seam Group
54. Optimization Of Fault Proof Coal (Rock) Column In The West Mining Area Of Jiegou Coal Mine
55. Study On The Failure Characteristics Of Coal And Rock And The Size Of Coal Pillars In Roadway Under Dynamic Load In Deep Well
56. Study On Pressure Relief Technology Of High Pressure Water Jet Of Residual Coal Pillar In Overlying Goaf In Close Seam Mining
57. Research On The Surface Movement Of Coal Pillars In The Strip Of Gangue Filling Mining
58. Study On Surrounding Rock Control Technology Of Goaf Floor Roadway Under The Condition Of Close Coal Seam Spacing And Several Coal Pillars
59. Research On Coal Pillars Retention Method And Safety Assurance Technology Of The Fully Mechanized Caving Face Under Complex Conditions
60. Research On Failure Characteristics And Control Ways Of Roadways Extremely Close Distance Coal
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