;学习目标
Learningobjectives;学习目标
Learningobjectives;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;一、装渣运输定义
Ⅰ.Definitionofslagloadingandtransportation;二、装渣运输方式
Ⅱ.Transportationmodeofloadingslag;2.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.Tracklessslagloadingtracklesstransportation
Thebucketwheelorcrawlertyperockloadingmachineryisusedtoloadtherockslaginthedumptruckandtransportitoutoftheslagunloadingyardoutsidethetunnel
Features:Transportationmanagementandschedulingworkisrelativelysimple,fast,smallinterference.Alargeamountofexhaustgasisdischarged,pollutingtheairinthetunnel
Application:Mediumandlongtunnelsandshorttunnels
;3.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.Tracklessslagloadingrailtransportation
Notrackislaidwithintherangeof20~30mfromtheworkingface.Theslagloadingmachineisverticalclawrockloader,hauledbytransportvehicleshuttlecarandbatterycar,andtransportedoutoftheslagunloadingyardalongthetunneltrack.
Features:thetunnelpollutionissmallandthespeedisfast
Application:LongTunnel
;三、装渣运输方式特点
Ⅲ.Characteristicsofslagloadingtransportationmode;四、案例分析
Ⅳ.Caseanalysis;四、案例分析——装渣运输方式选择
Ⅳ.Caseanalysis--Selectionoftransportationmodeforloadingslag;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,sotrack