PROCEEDINGS OF THE 39TH INTERNATIONAL CONFERENCE ON GROUND CONTROL IN MINING [electronic resource] : ICGCM 2020.

Cover -- Publisher Information -- Contents -- Preface -- Editors and Reviewers -- 2020 Organizing Committee -- 2020 Sponsors -- 2019 Syd S. Peng Ground Control in Mining Award -- Syd S. and Felicia F. Peng Ground Control in Mining Scholarships -- The Best of Ground Control in Mining -- FUNDAMENTAL GROUND CONTROL STUDIES -- Assessing Support Alternatives for Longwall Gate Roads Subject to Changing Stress -- Proactive Interburden Fracturing Using Underground Inseam Drilling with Validation Monitoring -- Investigating Different Methods Used for Approximating Pillar Loads in Longwall Coal Mines

Measurement and Analysis of Ground Movement and Load Redistribution at a Longwall Mine in Central Utah -- DYNAMIC FAILURE STUDIES IN COAL MINES -- Pillar Design and Coal Burst Experience in Utah Book Cliffs Longwall Operations -- Numerical Analysis for the Prediction of Bump Prone Conditions: A Southern Appalachian Pillar Coal Bump Case Study -- Ground Motion Characteristics in an Underground Burst-Prone Coal Mine -- Protecting Miners from Coal Bursts During Development Above Historic Mine Workings in Harlan County, Kentucky -- ADVANCEMENTS IN GEOTECHNICAL ANALYSIS METHODS

Monitoring and Evaluation of Ground Movements Above a Deep Longwall Mine in the Eastern United States -- Preliminary Rib Support Requirements for Solid Coal Ribs Using A Coal Pillar Rib Rating -- Analysis of Roof Failure at the Intersections in a Coal Mine -- Bleeder Entry Evaluation Using Condition Mapping and Numerical Modeling -- ADVANCES IN REMOTE SENSING -- New Opportunities and Challenges in Surveying Underground Cavities Using Photogrammetric Methods -- Toward a Mine-Wide, Real-Time, and Autonomous Geotechnical Change Detection, Monitoring, and Prediction Framework for Underground Mines

LiDAR Mapping of Ground Damage in a Heading Reorientation Case Study -- Measurement of Overburden Failure Zones in Close Multiple-Seam Coal Mining -- Quantifying Relationships Between Subsidence and Longwall Face Advance Using DInSAR -- THICK SEAM COAL MINING -- Several Scientific Issues on Ground Control in the Mining of Thick Coal Seams -- Investigation of Stability of an Unconventional Water-Obstruction Gate Pillar with a Curved Boundary in Mining Inclined Ultra-Thick Coal Seams -- Research on the Roof Advanced Breaking Position of Large Mining Height Working Face in Shallow Coal Seam

SURFACE STRUCTURE AND WATER PROTECTIONS -- Underground Mine Stream Crossing Assessment: A Multidisciplinary Approach -- Ground Control of Strip Backfilling Water Conservation Mining in Shallow Coal Seams -- SURFACE AND SUB-SURFACE SUBSIDENCE ISSUES -- The Current Perspective of the Pennsylvania 1957 Gas Well Pillar Study and Its Implications for Longwall Gas Well Pillars -- Longwall-Induced Ground Movement at a Shale Gas Well Site Located in a District Barrier Pillar-FLAC3D Modeling Results and Interpretation

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