Understanding roof deformation mechanics and parametric sensitivities of coal mine entries using the

• 作 者: Rami Abousleiman Gabriel Walto
• 机 构: DepartmentofGeologyandGeologicalEngineering
• 出 处: 矿业科学技术学报:英文版
• 发表日期: 2020年1期
• 关键词: Numerical modeling DISCRETE element method Coal mine ROOF rating ANALYSIS of ROO
• 基金项目: sponsored by the Alpha Foundation for the Improvement of Mine Safety and Health, Inc. (Alpha Foundation),the funding provided for this project by the Alpha Foundation,partially funded by the National

Although conventional coal mine designs are conservative regarding pillar strength,local failures such as roof-falls and pillar bursts still affect mine safety and operations.Previous studies have identified that discontinuous,layered roof materials have