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]国网能源新疆准东煤电有限公司,新疆昌吉831100 [2]中国矿业大学矿业工程学院,江苏徐州221116 [3]宁煤集团石炭井焦煤公司,宁夏石嘴山753000 [4]天地科技股份有限公司,北京100013
出 处:《煤炭工程》2012年第8期79-80,84,共3页Coal Engineering
基 金:"十二五"国家科技支撑计划资助项目(2012BAK04B08)
摘 要:通过对近距离大倾角综放工作面矿压实测数据的分析,获得工作面矿压显现的规律:工作面中部来压步距较小,来压强度较低,并进一步探析了内在的形成原因。由近距离大倾角工作面开采相互影响得知工作面中部和两端呈现两种不同的覆岩结构模型,中部主要承受静载荷的作用,两端承受动载荷的作用。With the analysis on the mine strata pressure measured data of the fully mechanized top coal caving mining face in high inclined seam with short distance neighbouring coal mining faces, the mine strata pressure behavior law of the coal mining face was obtained. The pressurized step at the middle of the coal mining face was small, the pressurized strength was low and the intrinsic formation cause was further discussed. The mutual mining influences of the coal mining faces in high inclined seam with short distance to each other showed that the middle and two ends of the coal mining face would have two different overburden strata structure model, the middle of the coal face would mainly take the static load function and the two end of the coal face would take the dynamic load function.
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:3.133.83.94