隧道施工项目五装渣运输ProjectSlagloadin

Tunnelconstruction

隧道施工

项目五装渣运输Project5Slagloadingandtransportation任务一装渣运输方式Task1Modeofslagloadingandtransportation学习目标

Learningobjectives2知识目标通过本任务的学习，学生应掌握隧道装渣运输的几种方式，各种装渣运输方式的特点。KnowledgeobjectivesThroughthestudyofthistask,studentsshouldmasterseveralwaysoftunnelslagtransportationandthecharacteristicsofvariouswaysofslagtransportation.学习目标

Learningobjectives3能力目标通过本任务的学习，学生能应选择合理的装渣运输方式；具有安全意识。AbilityobjectivesThroughthestudyofthistask,studentscanchooseareasonablewayofloadingandtransportation;Havesafetyawareness.课程引入：隧道经过开挖作业后，目前处于的状态？Courseintroduction:Whatisthecurrentstateofthetunnelafterexcavation?初期支护Initialsupport装渣运输Slagloadingandtransportation一、装渣运输定义

Ⅰ.Definitionofslagloadingandtransportation将开挖下的石渣运出洞外卸掉。装渣运输三个环节：装渣、运输、卸渣。Transporttheexcavatedrockslagoutofthetunnelandunloadit.Therearethreelinksinloadingandtransportation:loading,transportationandunloading.二、装渣运输方式

Ⅱ.Transportationmodeofloadingslag1.有轨装渣—有轨运输就是坑道内靠近工作面一段用轨行式装渣机将石渣装在车辆内，编列成组，再用牵引机车沿着轨道运出洞外卸渣场。特点：污染小，速度慢。适合：小断面隧道1.Railloading-railtransportationInthesectionofthetunnelneartheworkingface,theballastisloadedintothevehiclebyrailtypeslagloader,arrangedintogroups,andthentransportedoutoftheslagunloadingyardalongthetrackbytractionlocomotive.Features:lowpollution,slowspeed.Suitablefor:smallsectiontunnel2.无轨装渣—无轨运输装渣采用铲斗轮胎式或履带式装岩机械，将石渣装在自卸汽车内运出洞外卸渣场特点：运输管理及调度工作也较为简单，速度快，干扰小。排出废气量大，污染洞内空气适用：中长隧道及短隧道2.TracklessslagloadingtracklesstransportationThebucketwheelorcrawlertyperockloadingmachineryisusedtoloadtherockslaginthedumptruckandtransportitoutoftheslagunloadingyardoutsidethetunnelFeatures:Transportationmanagementandschedulingworkisrelativelysimple,fast,smallinterference.Alargeamountofexhaustgasisdischarged,pollutingtheairinthetunnelApplication:Mediumandlongtunnelsandshorttunnels二、装渣运输方式

Ⅱ.Transportationmodeofloadingslag3.无轨装渣—有轨运输在离工作面20~30ｍ范围内不铺设轨道，装渣机械采用立爪装岩机，运输车辆梭式矿车和电瓶车牵引，沿着洞身轨道运出洞外卸渣场。特点：隧道污染小，速度较快适用：长隧道3.TracklessslagloadingrailtransportationNotrackislaidwithintherangeof20~30mfromtheworkingface.Theslagloadingmachineisverticalclawrockloader,hauledbytransportvehicleshuttlecarandbatterycar,andtransportedoutoftheslagunloadingyardalongthetunneltrack.Features:thetunnelpollutionissmallandthespeedisfastApplication:LongTunnel二、装渣运输方式

Ⅱ.Transportationmodeofloadingslag三、装渣运输方式特点

Ⅲ.Characteristicsofslagloadingtransportationmode装渣运输分类Classificationofslagtransportation运输速度Transportationspeed通风状况Ventilationconditions适用隧道Applicabletothetunnel有轨装渣—有轨运输Railloading-railtransportation慢slowly污染最小Minimumpollution小Shorttunnel无轨装渣—无轨运输Tracklessslagging--tracklesstransportation皮带运输beltconveyers快fast较快faster污染大Heavypollution污染较小Lesspollution较长Longertunnel长Longtunnel无轨装渣—有轨运输Tracklessslagloading-railtransportation较快faster污染较小Lesspollution长Longtunnel四、案例分析

Ⅳ.Caseanalysis4.皮带运输将石渣铲装在皮带运输机上，经由皮带运输到洞外石渣仓，再以重型翻斗车运至指定的卸渣场所。特点：隧道污染小，速度较快适用：长隧道4.BelttransportationTheslagshovelisloadedonthebeltconveyor,transportedtotheslagbinoutsidethetunnelbybelt,andthentransportedtothedesignatedslagunloadingplacebyheavydumptruck.Features:thetunnelpollutionissmallandthespeedisfastApplication:LongTunnel四、案例分析——装渣运输方式选择

Ⅳ.Caseanalysis--Selectionoftransportationmodeforloadingslag案例1：某双线铁路隧道，隧道全长912m，隧道净宽12.26m，净高8.55m，采用钻爆法施工。该隧道采用哪一种装渣运输方式，为什么？隧道短，通风条件好，可以选择无轨装渣无轨运输。Case1:Adoubletrackrailwaytunnelwithatotallengthof912m,aclearwidthof12.26mandaclearheightof8.55mwasconstructedbydrillingandblastingmethod.Whichmodeofslagloadingandtransportationisadoptedinthetunnelandwhy?Thetunnelisshortandtheventilationconditionisgood,sotracklessslagloadingandtracklesstransportationcanbeselected.案例2：某两座单线分离式特长隧道隧道，隧道全长16590m，隧道净宽7.0m，净高8.55m，采用钻爆法施工。该隧道采用哪一种装渣运输方式，为什么？隧道长，通风条件差，选择污染小的运输方式，因此选择无轨装渣有轨运输。Case2:Twosingletrackseparatedsuperlongtunnels,withatotallengthof16590m,anetwidthof7.0mandanetheightof8.55m,wereconstructedbydrillingandblastingmethod.Whichmodeofslagloadingandtransportationisadoptedinthetunnelandwhy?Thetunnelislong,theventilationconditionispoor,andthetransportationmodewithlesspollutionisselected,sotracklessslagloadingandrailtransportationareselected.四、案例分析——装渣运输方式选择

Ⅳ.Caseanalysis--Selectionoftransportationmodeforloadingslag案例3：某单线分离式特长隧道，隧道全长28.236km，出口端内轮廓直径为8.9m圆形断面，采用TBM掘进机法施工。该隧道采用哪一种装渣运输方式，为什么？隧道采用TBM掘进机施工，施工速度快，通风条件差，渣量大，为避免运输相互干扰，因此选择皮带运输。Case3:Asingletrackseparatedsuperlongtunnelwithatotallengthof28.236kmandacircularsectionof8.9mindiameterattheexitendisconstructedbyTBM.Whichmodeofslagloadingandtransportationisadoptedinthetunnelandwhy?TBMtunnelingmachineisusedintunnelconstruction,whichhastheadvantagesoffastconstructionspeed,poorventilationconditionandlargeamountofslag.Inordertoavoidmutualinterference,belttransportationisselected.四、案例分析——装渣运输方式选择

Ⅳ.Caseanalysis--Selectionoftransportationmodeforloadingslag五、无轨运输和有轨运输选择

Ⅴ.Selectionoftracklesstransportationandrailtransportation隧道施工中装渣运输方式应根据隧道长度、断面大小、施工方法、机械设备及施工进度等要求综合考虑。双线隧道，独头掘进长度在3000m以下时可采用无轨运输；单线隧道长度在1000m以下时，宜采用无轨运输；长度大于1500m时，宜采用有轨运输。Thetransportationmodeofloadingslagintunnelconstructionshouldbecomprehensivelyconsideredaccordingtotherequirementsoftunnellength,sectionsize,constructionmethod,mechanicalequipmentandconstructionprogress.Fordoubletracktunnel,tracklesstransportationcanbeadoptedwhenthesingleheadinglengthislessthan3000m;Whenthelengthofsingletracktunnelislessthan1000m,trackles