摘要
考虑到回采巷道所处煤层群中的空间位置,综合分析上下煤层、邻近工作面及煤柱留设对巷道的影响,对崔家寨煤矿503工作面机巷以及相邻的505工作面机巷出现的冒顶等一系列巷道失稳问题进行了分析研究,对巷道的布置,煤柱宽度的留设及锚杆支护参数进行了分析,并给出了合理的建议,为今后现场施工提供了依据。
Considering the spatial positions of mining roadway, the influence on the roadway which were cause by upper and lower coal seam,adjacent mining Face and coal pillar＇s width are comprehensive analyzed .Based on the analysis and research of series of roadway unstability problems ,such as roof falling accident ,which occurred in the roadway 503face and its adjacent mining face 505 in Cuijiazhai coal mine,the arrangement of roadways, coal pillar＇s width and bolting support parameter are analyzed ,and reasonable suggestion is given .The basis have been provided for future field construction.
出处
《煤炭科技》
2009年第1期11-14,共4页
Coal Science & Technology Magazine
关键词
冒顶失稳
底板巷道
煤柱
采动影响
锚杆
roof falling instability
floor roadway
coal pillar
dynamic influence
bolting
