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ID:22913566
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页数:18页
时间:2018-11-01
《探讨采矿专业毕业设计外文资料翻译》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、探讨采矿专业毕业设计外文资料翻译探讨采矿专业毕业设计外文资料翻译__千万吨级矿井综采工作面的导读:t:describingfaulteffectonminingneedsthreeindex,faultdensity-faultnumberinunitarea;faultlength-sumoffaultlengthinunitarea;faultfallexponent-ratiooffaultfallandseamthi5英文原文Fuzzyevaluationoncoalseamgeologicalconditionofcoalf
2、aceintenmilliontonMineAbstract:BasedoncoalseamgeologicalconditioninJisanMine,quantitativeevaluationonconcretecoalseamgeologicalconditionismadebyusingfuzzyevaluationiningandcoalfaceproduction.Theevaluationcontentanditsrealizationofcoalseamgeologicalcondition,thestructure
3、andtheindexsystemofevaluationfactor,themembershipfunctionsandodelandreliabilityareexpoundedindetail,eighty-tiningtechnologyandensureamingrunningefficiently,safelyandsteadily.Keyembershipfunction1INTRODUCTIONine.2CONDITIONSOFSEAMANDGEOLOGYTherearethreesectionsthatareexpl
4、oitedinJisanMine,i.e.northsection﹑eastsection﹑.SanxiacoalseamisatthebottomofShanxizu,meanthicknessofcoalseamis5.26metres,fromeasttoreducefrom5metresto3.5metre.Rockcharacterofroofissandrockorsiltite,rockcharacterofbottomissiltiteorthinsandrock.TherearemanyfaultsinJisanMi
5、ne,therearefourteenfaultsthattheirdropsarebiggerthantetres,andtherearemanysmallerfaults.Basedonthecoalseamgeologicalconditions,strikelonginingmethodinfullymechanizedcoalfaceisadopted.3FACTORSANDINDEXOFEVALUATION3.1STRUCTUREOFEVALUATIONFACTORSAccordingtotheprincipleofsys
6、tem,feasibilityandsimplicity,basedoncoalseamgeologicalcharacteristic,thestructureofevaluationfactorsisfigure3.1.Itconsistsofsevenpoundfactorsandelevensmallerfactors,thesefactorsarequantifiedbyfaultdensityq1﹑faultlengthexponentq2﹑faultfallexponentq3﹑variationofcoalseaman
7、dbandcoefficientγ﹑seamthicknessm﹑seamangleα﹑seamhardnessR﹑immediateroofhardnessσ﹑ratioofimmediateroofandseamminingthicknessN﹑falseroofthicknessh0﹑immediatebottomhardnessqc﹑coalfacelengthlandcoalfaceadvancelengths.Figure3-1structureofevaluationfactorsofcoalface3.2INDEXSY
8、STEMOFEVALUATIONExplanationofelevensmallerevaluationfactorsisasfolloiningneedsthreeindex,faultdensity-faultnum
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