摘要
针对某矿地质采矿条件,根据相似理论,对其综放采场围岩破坏高度与形态、底板支撑压力的变化规律、关键层破断特征、覆岩结构演化过程进行相似材料模拟实验,分析关键层的上覆荷载和覆岩结构类型,研究覆岩结构演化规律与冲击矿压的相关性,揭示覆岩结构破断失稳诱发冲击矿压发生的机理。结合现场的实际情况,提出治理该矿冲击矿压的一些有效措施。
For mining and geological conditions in a mine, based on the similarity theory, the study used similar material simulation ex- periment to reveal mechanized caving stope wall rock failure height and forms, the variation laws of floor abutment pressure, key stra- tum breaking characteristics, the evolution process of overlying strata structure, the paper analyzed the key stratum overlying load and types, overlying strata structure evolution laws, and revealed the structure of the overlying strata destruction and instability induced by rockburst. Combining with the actual situation of the scene, the paper proposed some effective measures to control mine rockburst.
出处
《煤矿安全》
CAS
北大核心
2014年第3期31-34,共4页
Safety in Coal Mines
关键词
综放开采
冲击矿压
关键层
覆岩结构
相似材料模拟
fully - mechanized caving mining
rockburst
key stratum
overburden structure
similar material simulation