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东滩煤矿3_下煤巷道锚网、架棚联合支护技术分析
Title:TechnicalAnalysisofCombinedSupportusingAnchorNetandShedintheLowerCoalTunnelofDongtanCoalMine
Introduction:
Inrecentyears,thecoalminingindustryhaswitnessedanincreasingemphasisonsafetyandefficiency.Amongthemanychallengesfacedbycoalminers,ensuringthestabilityandsupportofundergroundtunnelsisofutmostimportance.ThisresearchpaperaimstoinvestigateandanalyzethetechnicalaspectsofcombinedsupportusinganchornetsandshedsinthelowercoaltunnelofDongtanCoalMine.Thisuniquesupporttechniquecombinesthebenefitsofbothanchornetsandshedstoenhancethestabilityandsafetyoftheundergroundtunnels.
1.Anchornetsupportsystem:
1.1Constructionprocess:
Theanchornetsupportsysteminvolvestheinstallationofsteelmeshanchoredtothesurroundingrocksofthetunnel.Drillholesaremadeatspecificdistances,andthesteelrodsorrockboltsareinserted.Theanchornetistheninstalledontotherodsandsecuredtightly,formingastableframeworkagainstrockfalls.
1.2Advantages:
Theanchornetsupportsystemoffersseveraladvantages,includingefficientcontrolofroofdeformation,enhancedstabilityofthetunnel,andimprovedlongevityofthesupportsystem.Theuseofanchornetsalsoallowsfortheeasyinstallationofothersupportelements,suchasshedsupports.
2.Shedsupportsystem:
2.1Constructionprocess:
Theshedsupportsysteminvolvestheinstallationofshedframesmadeofsteelbeamsandsupports.Theframesareinstalledalongthesidesofthetunnel,providingsupporttotheroofandpreventingcollapses.Theshedsupportsystemalsoincludestheinstallationofroofboltsorrockboltstofurtherenhancestability.
2.2Advantages:
Theshedsupportsystemprovidesstabilitybytransferringtheroofloadtothesidewallsofthetunnel.Itoffersexceptionalresistanceagainstrooffalls,improvingthesafetyoftheundergroundworkingenvironment.Moreover,theshedsupportsystemishighlyadaptableandcanbecustomizedtofitdifferenttunnelsizesandshapes.
3.Combinedsupportusinganchornetsandsheds:
3.1Constructionprocess:
Thecombinedsupporttechniqueinvolvestheinstallationofanchornetsastheprimarysupport,followedbytheinstallationofshedsupports.