Results 111 - 120 of 618

• Numerical Simulation of Roof Cavings in Several Kuzbass Mines Using Finite-difference Continuum Damage Mechanics Approach
  3/1/2020 - Peer reviewed journal articles
  An article describing how the finite-difference method and the continuum damage mechanics (CDM) approach were applied to simulate the stress-strain evolution of a rock mass with an underground opening during coal extraction.
• Analysis of ARMPS2010 Database with LaModel and an Updated Abutment Angle Equation
  1/1/2020 - Peer reviewed journal articles
  A paper presenting a new equation for calculating accurate abutment angles for deeper mining cases. The new equation was tested using both ARMPS2010 and LaModel for the entire case history database of ARMPS2010.
• Evaluation of Stress-control Layout at the Subtropolis Mine, Petersburg, Ohio
  1/1/2020 - Peer reviewed journal articles
  A paper detailing the positive aspects, as well as the challenges, of implementing a new stress-control mine layout.
• Geologic Data Collection and Assessment Techniques in Coal Mining for Ground Control
  1/1/2020 - Peer reviewed journal articles
  An article covering geologic exploratory methods, data organization, and the value of collecting and interpreting geologic information in coal mines to enhance safety and production.
• Influence of Longwall Mining on the Stability of Gas Wells in Chain Pillars
  1/1/2020 - Peer reviewed journal articles
  The article presents seven cases of conventional gas wells within chain pillars and discusses how numerical modeling can provide a more quantifiable approach to assess the stability of the gas wells.
• Loading Characteristics of Mechanical Rib Bolts Determined Through Testing and Numerical Modeling
  1/1/2020 - Peer reviewed journal articles
  A study of the loading characteristics of mechanical bolts (stiffness and capacity) installed in coal ribs at five underground coal mines.
• A Case Study of the Stability of a Non-typical Bleeder Entry System at a U.S. Longwall Mine
  1/1/2020 - Peer reviewed journal articles
  An article detailing observations of the non-typical bleeder entries of a moderate depth longwall panel, with a primary focus on the extent and magnitude of the abutment loading.
• Cemented Paste Backfill Geomechanics at a Narrow-Vein Underhand Cut-and-Fill Mine
  12/1/2019 - Peer reviewed journal articles
  An article describing an extensive in situ backfill instrumentation program designed to monitor long-term stope closure and induced backfill stress.
• A Field Study of Longwall Mine Ventilation Using Tracer Gas in a Trona Mine
  12/1/2019 - Peer reviewed journal articles
  An article describing a field study conducted to understand the role of gas dynamics in variable broken rock, as well as investigate airflow exchanges between the face and gob.
• The Design of a Laboratory Apparatus to Simulate the Dust Generated by Longwall Shield Advances
  12/1/2019 - Peer reviewed journal articles
  This paper outlines the design parameters for a shield dust simulator.