片理状岩体是一种特殊的岩体结构类型,其破坏形式主要为结构破坏。受控于该种岩体结构的采场随着上采高度增加,上盘岩体片帮严重,造成二次贫化,威胁回采安全。本文主要利用数值计算、相似模拟等试验结果,成功在片理状岩体采场回采过程中预留原生矿柱,维护了上盘围岩的稳定性,增加了采场回采高度,确保了回采过程的安全性。
Schistosity rock is special rock mass structures,its main failure form is structural failure.Upward rock for easy rib fall with the mining height for schistosity rock stope,thus cause secondary dilution and affect safety mining.Through numerical simulation test and similar simulation test,pre-setting ore pillar in schistosity rock stope,the results of the research increased mining height and ensured safety mining.