采矿与安全工程学报Issue(3)：323-330,8.
浅埋近距离煤层出煤柱开采压架防治对策
Prevention measures for support crushing while mining out the upper coal pillar in close distance shallow seams
摘要
Abstract
Aiming at the universal support crushing disasters during mining out the upper coal pillars in close distance shallow seams, the prevention measures for the disaster were proposed on the basis of the inherent mechanism of the support crushing by theoretical analysis and simulation experiments. The results showed that, while mining out the upper coal pillar, the three hinged structure of the key blocks above the coal pillar was unstable, whose relative rotary movement would cause the key stratum structure between the two seams to lose its balance because of overload. Thus the support crushing accident in the mining face jammed. Therefore, the key to the disaster prevention was to regulate the key blocks’ rotary movement. Hereby, the disaster prevention measures of the support crushing were proposed by prompting the key blocks to rotate in advance, preventing and destroying their rotation. All the prevention measures were verified by the similar material simulation experiments with a notable field application effect.关键词
浅埋煤层/近距离煤层/煤柱/关键层/压架防治Key words
shallow seam/close distance seam/coal pillar/key stratum/support crushing prevention分类
矿业与冶金引用本文复制引用
鞠金峰,许家林..浅埋近距离煤层出煤柱开采压架防治对策[J].采矿与安全工程学报,2013,(3):323-330,8.基金项目
国家“十二五”科技支撑计划项目（2012BAK04B06）；国家自然科学基金和神华集团有限公司联合资助项目（51174288）；江苏高校优势学科建设工程项目 （）
