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- Principles and Practices for Underground Coal Mining - Springer
It establishes the basic elements of risk management and the fundamental principles of ground behaviour and then applies these to the essential building blocks of any underground coal mining system, comprising excavations, pillars, and interactions between workings
- Principles and practices for underground coal mining - SearchWorks catalog
It establishes the basic elements of risk management and the fundamental principles of ground behaviour and then applies these to the essential building blocks of any underground coal mining system, comprising excavations, pillars, and interactions between workings
- TRG Pillar extraction - resources. nsw. gov. au
There have been numerous fatalities associated with pillar extraction, including incidents involving attempts to retrieve remote control continuous miners Appropriate planning and design and risk assessment is crucial to manage the real and significant risks associated with pillar extraction
- Ground Engineering: Principles and Practices for Underground Coal Mining
The main challenge in underground coal mining is the stability of underground workings, mainly during pillar extraction (Galvin 2016; Vinay et al 2022) The pillars are designed to ensure
- Ground control during pillar recovery with continuous miners
The large number of roof fall fatalities during pillar recovery led to major ground control research efforts in both Australia and the US (Galvin, 2016, Mark and Gauna, 2016) The implementation of the results of this research has saved many lives
- Principles and Practices for Underground Coal Mining - Google Books
It establishes the basic elements of risk management and the fundamental principles of ground behaviour and then applies these to the essential building blocks of any underground coal mining
- Failure Propagation of Pillars and Roof in a Room and Pillar Mine . . .
Underground mining using the room and pillar method leaves pillars to support the overlying strata When longwall mining is used to extract a lower coal seam beneath the room and pillar mine, the bending of the interburden strata can induce pillar failure and roof caving
- An assessment of coal pillar system stability criteria based on a . . .
This paper will argue that there are valid technical reasons to bring w h ratio into system stability criteria (other than its influence on pillar strength), as it is related to the post-failure stiffness of the pillar, as measured in situ, and its interaction with overburden stiffness
- Ground control during pillar recovery with continuous miners - ResearchGate
In the Central Appalachian coalfields of the US, mines that practice pillar extraction account for about 75% of the room-and-pillar production (Mark and Gauna, 2016) Pillar extraction
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