采矿与安全工程学报2011,Vol.28Issue(3):356-360,5.
泥化巷道底板控制技术研究
Floor Controlling Technology of Argillization Roadway
摘要
Abstract
In order to control floor heaving of argillization roadway efficiently, a numerical simulation study was applied to analyze the stress distribution and failure situation of the floor during roadway excavation in this paper, based on the engineering geological conditions and experimental tests of rock sample components in Panyidong coal mine, Huainan Mining Group, The results showed that the main mineral compositions of samples are kaolinite and quartz, and also with partly illite-montmorillonite mixed layer and slightly smectite, feldspar, calcite etc. We concluded the distribution characteristics of plastic zone in surrounding rock under the same stress condition during roadway excavation, proposed the inefficient reinforcement area and obtained reasonable reinforcing depth of the floor in argillization roadway. Meanwhile, an integrated technology of floor bolting and grouting was introduced and applied successfully in Panyidong coal mine. Floor deformation, layer separation and borehole monitoring results show that the integrated technology of floor bolting and grouting can efficiently control floor heaving and eliminate deformation instability of surrounding rock structure caused by serious floor deformation.关键词
泥化巷道/底板/加固深度/锚注一体化Key words
argillization roadway/ floor/ reinforcing depth/ intergreted technology of bolting and grouting分类
矿业与冶金引用本文复制引用
阚甲广,张农,李桂臣,梁国栋,陈亮,司光耀..泥化巷道底板控制技术研究[J].采矿与安全工程学报,2011,28(3):356-360,5.基金项目
国家自然科学青年基金项目(50904064) (50904064)
中央高校基本科研业务费专项资金资助(2010QNA29) (2010QNA29)
江苏高校优势学科建设工程资助项目 ()
煤炭资源与安全开采国家重点实验室开放研究基金项目(SKLCRSM09X03) (SKLCRSM09X03)