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《巷道圍巖錨桿支護(hù)作用加固拱理論及應(yīng)用研究論文》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、關(guān)鍵詞：錨桿；加固拱；加固范圍；應(yīng)力分布；成拱荷載研究類型：應(yīng)用基礎(chǔ)研究Subject:TheoreticalandApplicationalStudyofAnchorReinforcedArchinRoadwaySurroundingRockSpecialty:GeotechniqueEngineeringName:WangBonan(Signature)Instructor:GuShuancheng(Signature)ABSTRACTWiththedevelopmentofboltingtechnologyandreinforcementt
2、heory,theboltinghasbeenwidelyusedinthecoalmines,tunnelsandotherundergroundworks.However,duetothemechanismactionofthesurroundingrockboltreinforcementiscomplex,theboltmechanismresearchisstillintheexploratorystageandseriouslaginpractice.Inthispaper，theexistingboltsupportingmecha
3、nismwereanalizedandthetheoryofreinforcementarchbeendepthstudied.Thenproposedthecircularreinforcedareaofthesinglebolt’smechanicalmodelbasingonoftheexistingresearchconclusions.Throughmechanicalanalysis,thereinforcementarch’smechanicalcharacteristicsofthedifferentformsincircular
4、,archedandrectangularroadwayhavebeenstudied.Finally,basedonofengineeringpractice,byanalyzingthesitemonitoringdataandproposingasupportoptimizationschemeoftheroadway.Throughthisstudy,obtainedthefollowingconclusions:1、Theexistingboltingtheoriesareanalyzed.Focusonthemechanismofre
5、inforcementarchtheoryandanalyzetheextrusionreinforcementeffectofboltsinsurroundingrock.2、Analyzedtheanchorageloadingmechanismandmechanicsofboltsonsurroundingrock.Basedontheexistingreinforcementmechanicalmodelofsinglebolt，proposedthecircularreinforcementareamechanicsmodel.Anal
6、yzedthethestressdistributionlawinreinforcementareaaccordancewiththetheoryofelasticityandderivedtherangeofthereinforcedarea’scalculationformulacombinedwithrockmechanicstheory.Obtainedtherelationshipbetweenthereinforcementarea,reinforcementloadandthesurroundingrock’sbyparametri
7、canalysis,andderivedcalculationformulaofthereinforcedarch’sthicknessbetweenboltlengthandinter-rowspacingbasedonthegeometryrelations.3、Studythearchingloadofboltsinformingthereinforcementarchintheroadwayandobtainformulathearchingloadbetweenboltlength,surroundingrockparametersan
8、dgroundstress,thengettherelationshipcurvesofthearchingloadandboltlen
