检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:张运海[1] 吴祥[1] 孙西学[1] 刘军[1] 李新华[1]
出 处:《煤炭科学技术》2008年第9期19-21,共3页Coal Science and Technology
摘 要:为了保证矿井生产持续高效,根据侵入体的特定矿物成分及岩性特征,采取超前打钻、注水软化侵入体的方法,使工作面不搬家即可推过火成岩墙,根据岩浆侵入体的侵入规律和特殊的矿压显现规律,确定了合理的终采位置,多回收了3600余t的煤炭资源。In order to ensure the mine production to be kept in high efficiency, according to the special mineral contents and rock features of the intrusive mass, a pilot borehole drilling and in advanced water injection were applied to soften the intrusive mass to allow the coal mining face pass through the igneous rock wall without a mining face removing. According to the intrusive law of the magma intrusive mass and the special strata behavior law, a rational mining terminal location was set up and over 3 600 t coal resources were recovered in addition.
分 类 号:TD713.33[矿业工程—矿井通风与安全]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.15