盾构构造与操作维护-盾构教研室-1733412648620.pptx

盾构构造与操作维护盾构教研室——盾构机刀具CuttersofShieldMachine

1盾构机刀具CuttersofShieldMachine1.1盾构机刀具的分类ClassificationofCutters2Softsoil软土地层Sandypebble砂卵石地层Hardrock硬岩地层

3盾构机及TBM刀具根据其作用机理可分为三类：切削类刀具、滚动类刀具和辅助类刀具。CuttersforshieldmachinesandTBMscanbeclassifiedintothreetypesaccordingtotheirworkingmechanism:peelingcutters,rollingcuttersandauxiliarycutters.切削类刀具Peelingcutter滚动类刀具Rollingcutter辅助类刀具Auxiliarycutter1盾构机刀具CuttersofShieldMachine1.1盾构机刀具的分类ClassificationofCutters

4切削类刀具仅随刀盘旋转，通常用语强度较低的地层。切削类刀具种类众多，目前较为常用的有：切刀、先行刀等。其中，先行刀又可分为：贝壳刀、齿刀和撕裂刀。Peelingcuttersrotatewithcutterheadonlyandisgenerallyusedinstratumswithlowerstrength.Therearemanytypesofpeelingcutters.Atpresent,thecommonlyusedtypesarescraper,dragpickax,etc.Fordragpickax,therearethreemainforms:shell-shapedcutter,serratedcutterandripper.切刀scraper先行刀Dragpickax齿刀Serratedcutter贝壳刀Shell-shapedcutter撕裂刀ripper1盾构机刀具CuttersofShieldMachine1.2切削类刀具Peelingcutters

1.3滚动类刀具Rollingcutters5滚动类刀具既可自转亦可随刀盘公转，通常用于硬岩地层。根据其形状，可分为两类：楔形滚刀和盘型滚刀。Rollingcutterrotateswithbothitsshaftandthecutterhead,usuallyappliedinhardrockstratums.Classifiedbytheshapeofthecutters,itcanbedividedintotwotypes:taperrolleranddisccutter.楔形滚刀Taperrollerwithdifferentteeth盘型滚刀Disccutterwithandwithoutteeth1盾构机刀具CuttersofShieldMachine

6不同种类的滚刀Differenttypesofrollingcutters1.3滚动类刀具Rollingcutters1盾构机刀具CuttersofShieldMachine

7单刃滚刀Single-disccutter如下图所示为单刃滚刀、双刃滚刀及三刃滚刀。Thepicturesbelowaresingle-disccutter,double-disccutterandtriple-disccutter.双刃滚刀Double-disccutter三刃滚刀Triple-disccutter1.3滚动类刀具Rollingcutters1盾构机刀具CuttersofShieldMachine

8Forsingle-disccutteranddoubledisccutter,whichonedoyouthinkiswithhigherrockbreakingability?1.3滚动类刀具Rollingcutters1盾构机刀具Cutters