【摘要】 本文利用相似材料模拟试验的研究方法,对煤层岩石进行了两种实验。一种实验是保持压模尺寸不变,增加压力使岩石破坏;另一种实验是单独改变压模尺寸使岩石破坏。在此基础上研究了底板岩石的承载特性。更多还原

【Abstract】 Two kinds of experiments were made using model testing with equivalent materials to make the rock failure,one being by increasing pressure,and the other by changing the model footing size.On the foundation of the above,the rock bearing characteristics of floor in coal seam were also investigated.更多还原