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开采工艺性评价.docx
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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开采工艺性评价
英文原文
FuzzyevaluationoncoalseamgeologicalconditionofcoalfaceintenmilliontonMine
Abstract：
BasedoncoalseamgeologicalconditioninJisanMine，quantitativeevaluationonconcretecoalseamgeologicalconditionismadebyusingfuzzyevaluationwiththeviewofcoalminingandcoalfaceproduction.Theevaluationcontentanditsrealizationofcoalseamgeologicalcondition，thestructureandtheindexsystemofevaluationfactor，themembershipfunctionsandweightsofevaluationfactor，evaluationmodelandreliabilityareexpoundedindetail，eighty-twocoalfacethatwillbeexploitedisclassified，Fuzzyevaluationisthebasalworktoselectcoalminingtechnologyandensureamingrunningefficiently，safelyandsteadily.
Keywords：
fuzzyevaluation；membershipfunction
1INTRODUCTION
Withthedevelopmentofmining，thedifferenceofcoalseamgeologicalconditionswillaffectthesuitabilityofcoalminingtechnologyandcoalfaceoutputs，i.e.qualificationandeconomicindicator.Toensureaminingrunningefficiently，safelyandsteadily，coalseamgeologicalconditionsmustbeknownroundlyanddetailed.Fuzzyevaluationoncoalseamgeologicalconditionsisaevaluationonconcretecoalseamgeologicalconditionwiththecomprehensiveviewofcoalmining.Themaincharacteristicofevaluationisthatacoalfaceisaevaluationcell.
TheaticletellsoffuzzyevaluationoncoalseamgeologicalconditionsinJisanMine.
2CONDITIONSOFSEAMANDGEOLOGY
TherearethreesectionsthatareexploitedinJisanMine，i.e.northsection﹑eastsection﹑westsection，theybelongstoSanxiacoalseam.SanxiacoalseamisatthebottomofShanxizu，meanthicknessofcoalseamis5.26metres，fromeasttowestinMine，thicknessofcoalseamreducefrom5metresto3.5metre.Rockcharacterofroofissandrockorsiltite，rockcharacterofbottomissiltiteorthinsandrock.TherearemanyfaultsinJisanMine，therearefourteenfaultsthattheirdropsarebiggerthantwentymetres，andtherearemanysmallerfaults.Basedonthecoalseamgeologicalconditions，strikelongwallminingmethodinfullymechanizedcoalfaceisadopted.
3FACTORSANDINDEXOFEVALUATION
3.1STRUCTUREOFEVALUATIONFACTORS
Accordingtotheprincipleofsystem，feasibilityandsimplicity，basedoncoalseamgeologicalcharacteristic，thestructureofevaluationfactorsisfigure3.1.
Itconsistsofsevencompoundfactorsandelevensmallerfactors，thesefactorsarequantifiedbyfaultdensityq1﹑faultlengthexponentq2﹑faultfallexponentq3﹑variationofcoalseamandbandcoefficientγ﹑seamthicknessm﹑seamangleα﹑seamhardnessR﹑immediateroofhardnessσ﹑ratioofimmediateroofandseamminingthicknessN﹑falseroofthicknessh0﹑immediatebottomhardnessqc﹑coalfacelengthlandcoalfaceadvancelengths.
Figure3-1structureofevaluationfactorsofcoalface
3.2INDEXSYSTEMOFEVALUATION
Explanationofelevensmallerevaluationfactorsisasfollows：
（1）faulteffect：
describingfaulteffectonminingneedsthreeindex，faultdensity-faultnumberinunitarea；faultlength-sumoffaultlengthinunitarea；faultfallexponent-ratiooffaultfallandseamthickness.
（2）variationofcoalseamandbandcoefficient：
ratioofseamthicknesssamplestandarddeviationandseamthicknessmean.
（3）Seamthickness：
seamsamplethicknessmean.
（4）Seamangle：
seamsampleanglemean.
（5）Seamhardness：
seamcompressionstrength.
（6）Immediateroofhardness：
immediateroofcompressionstrength.
（7）Mainroofholdingpower：
（8）Falseroofeffect：
falseroofthickness.
（9）Immediatebottomhardness：
immediateroofcompressionstrength.
（10）Coalfacelength
（11）Coalfaceadvance
3.3MEMBERSHIPFUNCTIONSOFEVALUATIONFACTORS
Themembershipfunctionofevaluationfactoristhequantitativedescriptiononfuzzyrelationshipbetweenthechangeofageologicalfactorandtheminingeffect.Membershipfunctionisthefoundationtobuildafuzzyevaluationmodel.
Adoptingstatisticanalogismmethod，methodofundeterminedcoefficientsandheterogeneousfuzzystatisticmethod，membershipfunctionsareobtainedasfollows：
（1）membershipfunctionoffaulteffect
μa=2/（1+exp（0.0018+0.042×q1+0.064×q2+0.00071×q3））
（2）membershipfunctionofvariationofcoalseamandbandcoefficient
（3）membershipfunctionofseamthickness
（4）membershipfunctionofseamangle
（5）membershipfunctionofseamhardness
（6）membershipfunctionofimmediateroofhardness
（7）mainroofholdingpower
（8）falseroofeffect
（9）immediatebottomhardness
（10）coalfacelength
（11）coaladvancelength
3.4WEIGHTSOFEVALUATIONFACTORS
Weightofevaluationfactorsisaquantitythatshowrelativeimportanceofperfactorinsystem，itisthekeytounifysystemicstructureandfunction.CoamseamgeologicalevaluationofcoalfaceascertainsweightsofevaluationfactorsbyAHP.
AHPisaeasymethodtoquantifythequanlitativeevent.AppliacationofAHPneedsfivesteps：
buildinghierarchicalmodel、constructingjudgementmatrix、singlehierarchycollationandconsistencycheck、totalhierarchycollation、consistencycheckoftotalhierarchycollation.
ComfirmatiomofjudgementmatrixisthekeytouseAHP，valueofjudgementmatrixisthequantitativedescriptiononrelativeimportanceofperfactor，thevalvesareonetonineandtheirreciprocals.Table1showsthevalue，Table2to4showjudgementmatrix，Table5showsweightsofevaluationfactors.
Figure1gradationandexplanationofjudgementmatrix
gradation
explanation
1
Thesameimportanceof2element
3
Oneelementislittlemoreimportantthananother
5
Oneelementisobviouslymoreimportantthananother
7
Oneelementismightlymoreimportantthananother
9
Oneelementisextremelymoreimportantthananother
2，4，6，8
midvlave
reciprocal
Reciprocalvalve
Figure2A~Bjudgementmatrix
A
B1
B2
B3
B4
B5
B6
B7
B1
1
6
5
7
8
7
7
B2
1/6
1
3
3
3
3
2
B3
1/5
1/3
1
3
3
4
3
B4
1/7
1/3
1/3
1
3
3
3
B5
1/8
1/3
1/3
1/3
1
2
2
B6
1/7
1/4
1/3
1/3
1/2
1
3
B7
1/7
1/3
1/3
1/3
1/2
1/3
1
Figure3B6~Cjudgementmatrix
B6
C6
C7
C8
C9
C6
1
3
2
3
C7
1/3
1
2
3
C8
1/2
1/3
1
3
C9
1/3
1/3
1/3
1
Figure4B7~Cjudgementmatrix
B7
C10
C11
C10
1
3
C11
1/3
1
Figure5calculationresultoffactorweight
Compoundfactorweight
Smallerfactorweight
plexdegreeofgeologicalstructure
0.4898
Faulteffect
0.4898
2.stabilizationdegreeofcoalseam
0.1557
Variabilityofcoalseam
0.1557
3.seamthickness
0.1289
Seamthickness
0.1289
4.seamangle
0.0861
Seamangle
0.0861
5.seamhardness
0.055
Seamhardness
0.055
6.seamroofandbottomcondition
0.0468
Immediateroofhardness
0.0209
Roofholdingpower
0.012
Falseroof
0.0094
Bottomeffect
0.0044
7.coalface
0.0377
（1）Coalfacelength
（2）Coalfaceadvence
0.0283
0.0094
sum
1.0
sum
1.0
3.5FUZZYEVALUATIONMODEL
Coalseamgeologicalconditionsaremultilayeredevaluatedbyfuzzyevaluationmodel，fuzzyevaluationmodelimagessinglefactorevaluationvaluetototalevaluationvaluebycertainalgorithm，whetherpropertisofevaluationsampleisbadorgoodareassuredbytotalevaluationvalve，inordertocomprehesivelyconsidereffectdegreeofperfactor，weightedavarageevaluationmodelisused，themodel：
Infomula：
bj——evaluationvalve；
Wi——weightmatrix。
3.6RELIABILITYOFFUZZYEVALUATION
Becausecoalseamgeologicalconditionsarenotaccuratelydescripted，evaluationondrillinformationhassomeaberrations，theratioofpre-miningevaluationvalveandafter-miningevaluationvalveinthesamecoalfaceistheindexvalvetojudgepre-miningevaluationreliabilityofcoalseam.I.e.evaluationreliabilityofcoalfacejispj，then
informula：
bj
（1）——after-miningevaluationvalveofcoalseamj；
bj
（2）——pre-miningevaluationvalveofcoalseamj；
pre-miningevaluationvalveofunquarriedcoalseamisamendedbypj.
Table6isevaluationreliabilityofseveralsectioncoalfaceinJisanMine.
Table6evaluationreliabilityofseveralsectioncoalfaceinJisanMine
block
63下01
13下04
43下00
13下02
reliability
0.915718
0.965236
0.903159
0.934375
4CLASSIFICATIONRESULTOFEVALUATION
Basedonfuzzyevaluation，coalfacesthatwillbeminedinten~fiftyyeasareclassified.Table7istheclassificationresultstable.
Table7coalfaceclassification
grade
evaluationvalue
description
one
>0.80
better
two
0.70~0.80
good
three
0.60~0.70
general
four
<0.60
bad
Theclassificationresultsof82coalfaceinJisanMineconsistofzerobettercoalfaces﹑seventysevengoodcoalfaces﹑fivegeneralcoalfacesandzerobadcoalfaces..
Goodcoalfacesoccupy93.97%oftotalcoalfacesand95.07%ofreserves，generalcoalfacesliein6.03%oftotalcoalfacesand4.93%.
5MAINCONCLUSIONS
（1）Membershipfunctionisthefoundationtobuildfuzzyevaluationmodel，themembershipfunctionofevaluationfactoristhequantitativedescriptiononfuzzyrelationshipbetweenthechangeofageologicalfactorandtheminingeffect.
（2）Theclassificationresultsof82coalfaceinJisanMineconsistofzerobettercoalfaces﹑seventysevengoodcoalfaces﹑fivegeneralcoalfacesandzerobadcoalfaces..Goodcoalfacesoccupy93.97%oftotalcoalfacesand95.07%ofreserves，generalcoalfacesliein6.03%oftotalcoalfacesand4.93%.Withthedevelopmentofrunning，goodcoalfacewillreduce，generalcoalfaceandbadcoalfacewillincrease.
中文译文
千万吨级矿井综采工作面的开采工艺性评价
摘要：
依据济三煤矿的煤层赋存条件与开采技术特点，采用模糊综合评价方法，从采矿的角度和工作面开采的总体方面，对具体煤层地质条件适于开采工艺的程度进行整体的定量评价。
从煤层地质条件评价的因素结构及指标体系构成、评价因素隶属函数与权重确定、评价模型建立与评价可靠性分析等方面进行了详细论述，对济三煤矿未来开采的114个综采工作面进行了类别划分，为未来工作面工艺方式选择及千万吨级矿井的持续开采提供了理论依据。
关键词：
模糊综
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