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1、土壓平衡盾構(gòu)機刀盤刀具布置方法研究?*?蒲毅劉建琴郭偉裴瑞英?天津大學(xué)機械工程學(xué)院天津?300072?摘要：研究土壓平衡Earth?Pressure?Balanced,?EPB盾構(gòu)機刀盤刀具的布置方法，目的是為了確保刀具結(jié)構(gòu)布置的合理性和實用性。依據(jù)刀具磨損的等壽命原則，提出確定刀具數(shù)量的磨損系數(shù)法和掘進(jìn)系數(shù)法；針對具體施工問題，可預(yù)測盾構(gòu)在開挖區(qū)間，刀具的磨損量以及許用磨損情況下刀具的掘進(jìn)距離，為保障工程的安全順利進(jìn)行提供參考；基于阿基米德螺旋線布置方法，計算了以刀具磨損的等壽命原則下，主切削刀的布置曲線；提出刀具平面對稱布局原則，分析刀具的切削過程，得到了單把
2、刀具的實際切深；建立了EPB盾構(gòu)刀盤上先行刀的立體布局方法，計算得到先行刀的超前量；結(jié)合南京地鐵二號線TA07?標(biāo)段，驗證了刀具布置方法的正確性。研究內(nèi)容和研究方法可為EPB盾構(gòu)機刀盤的設(shè)計和選型奠定理論基礎(chǔ)。關(guān)鍵詞：土壓平衡盾構(gòu)機等壽命原則刀具布置主切削刀先行刀中圖分類號：U25?The?Research?of?CuttingTool?LayoutMethod?of?EarthPressureBalanced?Shield?PUYi?LIUJianqin?GUOWei?PEI?Ruiying?College?of?Mechanical?Engineering,?
3、TianJinUniversity,?TianJin300072?Abstract:?To?ensure?rationality?and?practicability?of?the?cutter?configuration,?it?is?necessary?to?propose?the?method?of?cutting?tool?layout?of?Earth?Pressure?Balanced?EPB?shield.?According?to?the?equal-life?principle?of?tool?wear,?the?approach?of?the?
4、wear?coefficient?and?tunneling?coefficient?is?set?up,?which?can?carry?out?the?number?of?tools??When?it?comes?to?a?specific?construction,?it?also?can?predict?tool?wear?condition?and?the?tunneling?distance?under?the?allowable?attrition?in?the?range?of?the?shield?tunnel?excavation,?which
5、?offer?a?reference?for?the?safety?of?project??Based?on?Archimedes?spiral?layout?method,?the?arrangement?curve?of?drag?bits?on?cutter?headshould?be?calculated?according?withtheequal-life?principle?of?tool?wear?In?order?to?obtain?theactual?depth?of?a?cutting?tool,?the?rule?of?plane?symm
6、etry?layout?of?the?cutting?tool?is?put?forward,?and?cutting?process?is?analyzed?briefly??the?first?knife's?three-dimensional?arrangement?method?of?the?EPB?shieldisestablished,the?amount?of?advance?about?first?tools?is?gained?The?accuracy?of?the?cutting?tool?layout?theory?above?is?inve
7、stigated?with?the?example?of?TA07?of?Nanjing?Metro?number?two?line.?The?context?and?method?ofresearch?have?laid?a?theoretical?foundation?for?theEPBshield?cutterselection?anddesign?theory.?Key?words:?Earth?Pressure?BalancedEPB?Principlesoftheequal-life?Cutter?configuration?Drag?bits?Fi
8、rstto
