摘要
为保证矿井正常生产和接续,结合3400采区建下压煤的具体情况,在综合分析经济、技术等因素的基础上,从四种开采方案中选定条带开采。借鉴该矿区以往条带开采成果,并结合国内外实践经验,计算出条带开采采留宽度及煤柱强度。根据确定出的岩移参数,利用概率积分法进行地表变形预计并进行经济效益分析发现,此方案可以在保护地表建筑物安全的前提下获得较大经济效益。
In order to ensure the mine normal production and continuous development,in combination with the certain conditions of the seam in the mining block under the building structures,base on the comprehensive analysis on the economic and technical factors,a strip mining was selected from the four mining alternatives.With the references of the previous strip mining achievements in the mining area,in combination with the practical experiences at home and abroad,the coal pillar width and strength of the strip mining were calculated.According to the rock displacement parameters determined,the probability integral method was applied to predict the surface ground deformation and to analyze the economic benefits.The mining alternative could obtain the high economic benefits on the premise of the safety protection of the surface ground building structures.
出处
《煤炭工程》
北大核心
2011年第8期4-7,共4页
Coal Engineering
关键词
建下压煤
条带开采
变形预计
效益分析
梁宝寺煤矿
seam under building structures
strip mining
deformation prediction
benefit analysis
liangbaosi mine
