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:樊利军 刘天宇 FAN Li-jun;LIU Tian-yu(Ventilation Department,Yangquan Coal Industry Group,Yangquan,Shanxi,045000)
出 处:《煤炭科技》2020年第4期22-24,共3页Coal Science & Technology Magazine
摘 要:以新元煤矿31004工作面评价区域为工程背景,制定并实施了煤层预抽瓦斯等措施,并对工作面消突效果进行了评价。实测表明,31004工作面煤层残余瓦斯含量、残存瓦斯压力及D值均低于临界值,工作面消突效果明显,保证了正常回采作业。Taking the evaluation area of 31004 working face in Xinyuan Coal Mine as the engineering background,measures such as pre-drainage of coal seam were formulated and implemented,and the outburst elimination effect of the working face was evaluated.The actual measurement showed that the residual gas content,residual gas pressure and D value of 31004 working face are lower than the critical value,and the outburst elimination effect of the working face is obvious,which has ensured the normal mining operation.
分 类 号:TD713[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:18.218.60.55