矿井巷道摩擦阻力系数模糊查询系统-研究

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1、万方数据AbstractThefoundationandkeyofminenetworksettlementistodeterminethecoefficientoffrictionalresistance．Thisarticlelaunchestheresearchfromtheaspectsofdeterminationoffrictioncoe伍cientandSOon．Thecalculationformulaofcoe伍cientoffrictionalresistanceiSsummarizedaccordi

2、ngtodifferentroadway．Throughmultipleregressionequationtocountthefrictionalresistancecoefficientformulaoftheroadway．Relativelyaccuratemethodisprovidedtoestablishthefrictioncoefficientofthemineroadway．Inthecompletelyturbulentarea，coefficientoffrictionalresistanceis

3、associated、析tlltherelativeroughnessofpipelineratherthanReynoldsnumber．Forcomplexmineventilationconditions，determinationofcoefficientoffrictionalresistancetospendalotofhumanandmaterialresources，andtherelativeerrorisbigger．Inthispaper，accordingtothecharacteristicso

4、fthedatabase，thequerytechnologyoftheexpansionfuzzydatabasesystemisappliedtotheminepredictionoffrictionalresistancecoefficient．Byfuzzyquerycoalmininghistoryoffrictionalresistancecoefficientmeasurementdatatogetthehighmatchingdegreesametypeofthefrictionalresistancec

5、oefficientorsimilartypesoffrictionalresistancecoefficient．ThenecessaryparametersandrelativelyaccuratebasisiSprovidedforthemineventilationnetworksolution．KeyWords：mineventilation；frictionalresistancecoefficient；fuzzyquery；roadwaytype；万方数据目录1绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

6、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1研究目的和意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11．2研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21．2．1矿井巷道摩擦阻力系数国内外研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯．．21．2．2模糊数学的国内外研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．31．2．3基于数据库的模糊查询技术的国内外研究现状⋯⋯⋯⋯⋯⋯⋯31．3研究内容与研究技术路线⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．41．3．1研究内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯41．3．2研究技术路线⋯⋯⋯⋯⋯⋯⋯⋯⋯

7、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．42．相关理论研究⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯62．1计算摩擦阻力系数的基本理论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．62．1．1矿井通风阻力测量⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯62．1．2测定结果计算⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．72．1．3风流流态基本理论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯92．1．4矿井巷道沿程阻力系数影响因素分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯lO2．1．5巷道断面与周界⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．112．1．6风流沿程阻力

8、系数的确定⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯112．1．7紊流状态巷道壁面粗糙度对沿程阻力系数的影响⋯⋯⋯⋯⋯．132．2水平巷道的摩擦阻力⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．142．2．1不支护巷道的摩擦阻力⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．142．2．2混凝土或砖砌筑的巷道的摩擦阻力⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯152．2