Numerical simulation and damage analysis of fissure field evolution law in a single coal seam mining

• 作 者: Feng Gao Xingguang Liu Chaofen
• 机 构: State
• 出 处: 矿业科学技术学报：英文版
• 发表日期: 2012年6期
• 关键词: Single COAL SEAM DAMAGE FISSURE RUPTURE FINITE element Single coal seam Damage F
• 基金项目: supported from the State Key Basic Research Program of China(Nos.2010CB226804 and 2011CB201200)

Based on the different deformation and failure laws of coal and rock materials under tensile or compressive loads,the damage variable was defined to divide three phases from the damage and rupture point of view in order to reveal the fissured field evolut