Technical Sessions

The 2019 International Conference on Ground Control in Mining is proud to present technical sessions hosted by some of the leading innovators and technology from around the world. To learn more about available technical sessions, please view the complete list below.

Please check back often for updates on technical sessions.


Tuesday, July 23, 2019

8:15 am - 8:30 am    Welcoming Remarks

8:30 am - 10:00 am    Opening Session: Coal Mine Ground Control – Session 1

Morgan Sears, NIOSH, Pittsburgh, PA
Zach Agioutantis, University of Kentucky, Lexington, KY

8:30 am: A Causation Mechanism for Coal Bursts During Roadway Development Based on the Major Horizontal Stress in Coal, Bvery Specific Structural Geology Causing a Localized Loss of Effective Coal Confinement, and Newton's Second Law: Russell Frith, Guy Reed and Aaron Jones, Mine Advice Pty Ltd

8:52 am: Application of the Ground Response Curve for Understanding the Overburden Load Transfer Mechanism: Ihsan Berk Tulu, Deniz Tuncay, Zhao Haochen, Cicek Sena, Department of Mining Engineering, West Virginia University, Morgantown, WV and Ted Klemetti NIOSH Pittsburgh Mining Research Division, Pittsburgh, PA

9:14 am: When Traditional Ground Support Techniques Aren't Enough - Chemical Injections Can Solve Complex Problems: Cody Hildreth, Frederick Cybulski, Colton Cook, Stephen C. Tadolini
9:36 am: Fracturing, Caving Propagation and Influence of Mining on Groundwater above Longwall Panels – A Review of Predictive Models: Bruce Hebblewhite, University of New South Wales

9:36am: Fracturing, Caving Propagation and Influence of Mining on Groundwater Above Longwall Panels – A Review of Predictive Models: Bruce Hebblewhite, University of New South Wales

10:00 - 10:30     Coffee Break

10:30 am – Noon     Longwall Mining Interactions with Oil and Gas Wells – Session 2

Greg Hasenfus, Barr Engineering
Eric Westman, Virginia Tech, Blacksburg, VA

10:30 am: Assessing Risks from Mining-Induced Ground Movements Near Gas Wells: Christopher Mark, and Gregory M. Rumbaugh, MSHA

10:52 am: Influence of Longwall Mining on the Stability of Gas Wells in Chain Pillars: Peter Zhang, Heather Dougherty, Daniel Su, and Jack Trackemas, NIOSH, Pittsburgh Mining Research Division

11:14 am: Longwall-induced Subsurface Deformations and Permeability Changes – Shale Gas Well Casing Integrity Implication: D. W.H. Su, P. Zhang, H. Dougherty, M. Van Dyke, T. Minoski (Ground Control Branch) and S. Schatzel, V. Gangrade, E. Watkins, J. Addis, C. Hollerich (Fires and Explosions Branch) CDC/NIOSH/PMRD, Bruceton, PA

11:36 am: The Impacts of Longwall Mining on Groundwater Systems: Xinzhi (Thomas) Du, Murray Energy Corporation

Noon - 1:00 pm     Lunch | REFLECTIONS BALLROOM

1:00pm - 2:50 pm     Geotechnical Characterization and Critical Factors for Emerging Conditions– Session 3

Gabriel Walton, Colorado School of Mines, Golden, Colorado
Daniel Su, NIOSH, Pittsburgh, PA

1:00 pm: Geologic Data Collection and Assessment Techniques: Mark Van Dyke, NIOSH, Pittsburgh, PA and Ted Klemetti, NIOSH, Pittsburgh, PA ad Joe Wickline, Coronado Global Resources Inc., Beckley, WV

1:20 pm: Loading Characteristics of Mechanical Rib Bolts Determined through Testing and Numerical Modeling: Khaled Mohamed, CDC NIOSH and Gamal Rashed, CDC NIOSH, Pittsburgh, PA and Zorica Radakovic-Guzina, ITASCA Consulting Group, Minneapolis, MN

1:40 pm: Numerical Investigation of Factors Involved in a Floor Heave Mechanism in a Bump-Prone Coal Mine: Bo-Hyun Kim and Mark K. Larson, CDC/NIOSH/SMRD

2:00 pm: Understanding Geologic and Mining Conditions for Mine Management Decisions: A Case Study: Scott Nelson, Marshall Miller & Associates and Terry Hamrick United Coal Company, LLC Metinvest Group and Kevin Andrews, Vice President/Supervisory Geologist, Marshall Miller & Associates


2:30 pm - 3:00 pm      Coffee Break

3:00 pm - 4:30 pm     Emerging Issues and Studies in Underground Stone Mines – Session 4

Brent Slacker, NIOSH, Pittsburgh, PA
Vincent Scovazzo, John T Boyd Co, Pittsburgh, PA

3:00 pm: The Effect and Measurement of Horizontal Stress in an Underground Limestone Mine: David Newman Appalachian Mining & Engineering, Inc.

3:15 pm: The Development of a Multiple Level Underground Limestone Mine from Geology through Mine Planning: Christopher Newman and David Newman, Appalachian Mining & Engineering, Inc., Lexington, Kentucky and Robert Dupuy, Rogers Group, Inc.

3:30 pm: Evaluation of Stress Control Layout at the Subtropolis Mine, Petersburg, OH: Anthony Iannacchione, Tim Miller, Gabriel Esterhuizen, Brent Slaker, Michael Murphy, Natalie Cope, and Scott Thayer

3:45 pm: Investigating Seismicity Surrounding an Excavation Boundary in a Highly Stressed Dipping Underground Limestone Mine: Gangrade, V. and Slaker, B., CDC NIOSH, Pittsburgh, PA, and Collins, D. and Braganza, S. ESG Solutions, Winfield, J., Graymont PA Inc., Pleasant Gap, PA

4:00 pm: A Case Study on the Efficacy of Different Roof Bolting Schemes in Lhoist North America's Crab Orchard Mine: Reece Kurre, Gabriel Walton, Stantec - Colorado School of Mines


4:45 pm- 5:45 pm     Panel Discussion: Issues related to the Interface of Coal Mining and Natural Gas Development


  • Seth Pelepko (DEP Oil and Gas, Environmental Program Manager, Division of Well Plugging and Subsurface Activities
  • Bureau of Oil & Gas Planning and Program Management
    Department of Environmental Protection)
  • Casey Saunders, (Manager Coal/Gas Coordination, CONSOL Energy
  • Adam Scarr, Engineer, EQT
  • Chris Mark, MSHA – Principal Roof Control Specialist, Technical Support
  • Daniel Su, Senior Service Fellow, NIOSH Pittsburgh Mining Research Division


Wednesday, July 24, 2019

8:30 am - 10:00 am      Case Studies Part 2 Dynamic Failure and Extreme Conditions– Session 5

Ihsan Berk Tulu, West Virginia University, Morgantown, WV
Christopher Mark, MSHA, Pittsburgh, PA

8:30 am: Exploration of Petrographic, Elemental and Material Properties of Dynamic Failure Prone Coals: Heather Lawson, NIOSH Spokane Mining Research Division (SMRD)

8:52 am: Simulation of Recovery of Upper Remnant Coal Pillar while Mining the Ultra-close Lower Panel Using Longwall Top Coal Caving: Guorui Feng, Pengfei Wang, College of Mining Engineering, Taiyuan University of Technology, Taiyuan China Chaparral Berry: Sean Warren and David Hanson, CDC/NIOSH/SMRD

9:14 am: Investigating the Correlation between Coal Geochemistry and Coal Bumps: Chaparral Berry, Sean Warren and David Hanson, CDC/NIOSH/SMRD

9:36 am: Fractal Characteristics of Temporal-spatial Distribution of Acoustic Emission during Coal Bursts: Xiaohan Yang, Ting Ren, Alex Remennikov1, Xueqiu He and Lihai Tan


10:00 - 10:30 am      Coffee Break

10:30 am - 10:40 am      2019 ICGCM China Introduction and IJMST

Mark Larson, NIOSH, Pittsburgh, PA
Thomas Du, Murray Energy Corp, St. Clairsville, OH


10:40 am – Noon      Fundamental Ground Control Studies I

10:40 am: A Study of the Load Transfer Behaviour of Fully Grouted Rock Bolts with Analytical Modelling: Jianhang Chen1*, Fulian, He and Shoubao Zhang

11:00 am: Failure Mechanism and Control Technology for Deep Inclined Rock Roadway with Weak Planes: Meng Wang

11:20 am: Mine Pillar Design using the Ground Reaction Curve Concept: Ravi Ray, and Zach Agioutantis and Kostas Kaklis

11:40 am: Characteristics of Drawing Body Shape in LTCC: Theoretical Model and Experimental Validation: Jiachen Wang, Jinwang Zhang, Yang Li, Weijie Wei, School of Energy and Mining Engineering, China University of Mining and Technology, Beijing 100083, China

12:30 - 1:30 pm      Box Lunch | GOVERNOR BALLROOM FOYER


Thursday, July 25, 2019

8:30 am - 10:00 am      Subsidence and Related Surface Issues– Session 7

Peter Zhang, NIOSH, Pittsburgh, PA
Anthony Iannachione, University of Pittsburgh, Pittsburgh, PA

8:30 am: Factors Affecting Subsidence Basin Formation and Associated Surface Impacts in the Pittsburgh Coalbed: 50 Years of Experience within the Commonwealth of Pennsylvania: Taylor DaCanal, Anthony Iannacchione and Benjamin Grunauer, University of Pittsburgh

8:48 am: Behaviors of the Overburden Strata on Extra-thick Longwall Top Coal Caving Face in an Igneous Rock Intrusion Area: Jun Guo, Guorui Feng, Yuxia Guo, Tingye Qi, Pengfei Wang, JinWen Bai, Ruipeng Qian, XianJie Du, College of Mining Technology, Taiyuan, Shanxi, China

9:06 am: Investigations on Longwall Mining Subsidence Impacts on Pennsylvania Highway Alignments: Emily Adelsohn, Anthony Iannacchione, and Robert Winn, University of Pittsburgh

9:24 am: The Future of Underground Spatial Planning and the Resulting Potential Risks from the Point of View of Mining Subsidence Engineering: Carolina Bruecker and Axel Preusse, Institute for Mine Surveying, Mining Subsidence Engineering and Geophysics in Mining (IfM)

9:42am: Study on the optimization of filling ratio and parameters of strip filling


10:30 am – Noon      Mine Case Studies – Session 8

Jessica Wempen, University of Utah, Salt Lake City, UT
David Bartsch, American Energy Corp., Beallsville, OH

10:30 am: A Case Study of the Stability of a Non-typical Bleeder Entry System at a U.S. Longwall Mine: Klemetti, T.M., Van Dyke, M.A. NIOSH Pittsburgh Mining Research Division, Pittsburgh, PA, and Tulu, I.B. and Tuncay, D., West Virginia University, Morgantown, WV

10:52 am: Control of the Coal Roadway with Large Cross Section in Intense Fully Mechanized Caving Mining: Fulian He, Shoubao Zhang, Jianhang Chen, Dongdong Chen, China University of Mining and Technology

11:14 am: Analysis of ARMPS2010 Database with LaModel and an Updated Abutment Angle Equation: Tuncay, D. and Tulu, I.B. West Virginia University, Morgantown, WV and Klemetti Ted NIOSH Pittsburgh Mining Research Division, Pittsburgh, PA

11:36 am: Preventing Roof Falls in Weak Ground: Christopher Mark, and Ryan C. Stephan, Mine Safety and Health Administration


Noon - 1:00 pm      Lunch | Reflections Ballroom

1:00 pm - 2:30 pm      Fundamental Ground Control Studies II – Session 9

Gabriel Esterhuizen, NIOSH, Pittsburgh, PA
Keith Heasley, West Virginia University, Morgantown, WV

1:00 pm: Performance Analysis of Instruments Used to Measure Stress Change Resulting from Mining: Mark K. Larson and Bo-Hyun Kim, CDC, NIOSH, Spokane, WA

1:18 pm: Critical Failure Criteria of the Overlying Rock Strata due to High-intensity Longwall Coal Mining in China: GUO Wenbing, ZHAO Gaobo, MISHRA Brijes, BAI Erh

1:36 pm: Roof Control Technologies of Lower Layer Mining in Close Distance Coal Seams: Shoubao Zhang, Weixiang Meng, Zhao Song, Zhigao Liu, Ming Guo

1:54 pm: Understanding Roof Deformation Mechanics and Parametric Sensitivities of Coal Mine Entries Using the Discrete Element Method: Rami Abousleiman, Dr. Gabriel Walton, and Sankhaneel Sinha, Colorado School of Mines

1:12 pm: Application of Load Factors for Underground Structural Design: Xiaoting Li and John C. Stankus, Keystone Mining Services, LLC, an affiliate of Jennmar Corp.


2:15 pm - 2:45 pm      Coffee Break

3:00 pm - 4:00 pm      Ground Instrumentation and Monitoring Studies – Session 10

Bo Kim, NIOSH, Pittsburgh, PA
Russell Frith, Mine Advice Pty Ltd., Baresfield, NSW, Australia

4:00 pm: Shear Performance of Fully Encapsulated Cable Bolt in Reinforced Concrete Using the Newly Developed Double Shear Test Box: Guanyu Yang, Naj Aziz, Saman Khaleghparast, Jan Nemcik. University of Wollongong

4:15 pm: Secondary Support Instrumentation in Longwall Ventilation Entries: Benjamin Mirabile, Jennmar Corporation, Pittsburgh, PA and Erik Westman, Virginia Tech Department of Mining and Minerals Engineering, Blacksburg, VA

4:30 pm: Application of DInSAR for Short Period Monitoring of Initial Subsidence due to Longwall Mining in the Mountain West United States: Jessica M. Wempen, University of Utah

4:45 pm: An Improved Load Measuring Device for Underground Mining Standing Supports: Brandon Stables, Jennmar Corporation and Erik Westman, Virginia Polytechnic Institute and State University and Benjamin Mirabile Jennmar Corporation