中文摘要：

针对石槽村井田2-2煤层安全性开采,本文以FLAC^3D数值模拟为主,辅以经验公式法、莫尔-库伦破坏准则法、下四带理论法三法综合确定2-2煤层底板破坏深度。计算结果显示,四种方法计算数值结果相近,但FLAC3D数值模拟更为直观准确,因此采取数值模拟结果作为2-2煤层底板破坏深度。据此对石槽村2-2煤层安全性开采做出理论依据。

英文摘要：

In this paper, aiming at the 2-2 coal mining in shicaochun coal mine, based on the FLAC3 D numerical simulation, and supplemented three method of the empirical formula method, the Mohr-Coulomb failure criterion method, the under four band theory to determine the damage depth of 2-2 coal seam. The results show that the numerical results are close to the four methods, but the FLAC3 D is more intuitive and accurate, so the numerical simulation results are taken as the damage depth of 2-2 coal seam. Based on the theory of the safe mining of 2-2 coal seam in stone trough village.