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
机构地区:[1]山东矿业学院矿压所 [2]徐州矿务局生产处
出 处:《矿山压力与顶板管理》1990年第4期11-17,68-73,共7页Ground Pressure and Strata Control
摘 要:文章介绍了一种可适用于一般地质条件下的采场顶板控制设计的ROOF咨询系统及确定系统参数的计算方法、步骤和专家知识。The author designed a roof con-sulting system, which used for roof control inworking face by use of single props under generalgeological conditions. The paper introduces themethods of evaluating roof and flour quality in coalseam under particular geological condition, also themethods of determinating the parameters aboutcaving interval of immediate and main roofs,structural form and muving interval, supportingstrength and supporting close fur roof control andcontrol roof space, etc.. as well as steps and ex-pert system. The application of this system is a im-portant aspect for realizing scientific roof control.At present, the system is trying out in Xuzhoumine district.
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:216.73.216.13