摘要在施工中，所谓的盾构法就是使用盾构在地面以下开挖隧道的一种方法。随着时间的推移，到了上世纪末，伴随着我国的城市在地下空间的开发和利用率的提高与城市化进程的加快，盾构法作为一种既可以提高施工质量，又可以保护环境的施工方式，得到了政府和施工企业的大力推广和重视，所以，他们渐渐地开始大量的应用与引进这种先进的施工设备与技术。作为对盾构掘进效率和盾构掘进速度有着重要影响的盾构刀具，对于它的质量和选择就尤为重要。在国内，目前我们的盾构使用的刀具绝大部分依靠进口，这是因为第一，盾构在国内而言，是一种新型的设备，没有使刀具的研究人员和制造厂商所重视；第二，国内现有的一些道具不能够满足使用的要求。此文就主要对盾构刀具进行详细的介绍，希望能引起我国一些研究人员和有能力的刀具制造厂商的关注，使盾构刀具的国产化进一步加快。关键词：盾构；刀具；材料；发展趋势AbstractInconstruction,amethodofshieldmethodiscalledusingtheshieldexcavationtunnelinthebelowground.Withthepassageoftime,totheendofthelastcentury,withthedevelopmentofundergroundspaceinourcityandimproveutilizationrateofcityandurbanization,theshieldasacanimprovetheconstructionquality,constructionmethodsandcanProtectenvironment,thegovernmentandtheconstructionenterprisepromotionandattention,so,theygraduallybeganwiththeintroductionofalargenumberofapplicationsofthisadvancedconstructionequipmentandtechnology.Asforshieldtunnelingefficiencyandshieldtunnelingratehasimportantinfluenceofshieldcutter,isparticularlyimportantforitsqualityandchoice.InChina,thetoolcurrentlyusingourshield,thevastmajorityrelyonimports,thisisbecausethefirst,shieldinthedomestic,isakindofnewequipment,notthetoolforresearchersandmanufacturersattention;second,someofthepropsofdomesticexistingcannotmeettheuserequirements.Thispaperismainlyontheshieldcuttersareintroducedindetail,thehopecancausesomeChineseresearchersandtheabilityofthetoolmanufacturer'sattention,sothattheshieldcutterlocalizationtofurtheraccelerate.Keywords:shield;toolmaterial;developmenttrend目录摘要............................................................................................................1引言............................................................................................................1第一章盾构刀具使用环境.......................................................................2第二章盾构刀具的分类和配置...............................................................4第三章常用的盾构刀具材料...................................................................6第四章盾构刀具材料未来的发展趋势...................................................74.1优化刀具材料化学成分................................................................74.2改进热处理工艺充分挖掘材料潜力............................................94.3刀体材质的选用............................................................................94.4焊缝间隙的研究分析....................................................................94.5钎焊及热处理工艺研究..............................................................104.6抗冲击、耐磨、无裂纹的硬质合金刀头研制..........................104.7耐磨材料加强保护刀具基体......................................................11结论..........................................................................................................12参考文献..................................................................................................13致谢......................................................
