土压平衡盾构机刀盘刀具布置方法研究（可编辑）

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1、土压平衡盾构机刀盘刀具布置方法研究?*?蒲毅刘建琴郭伟裴瑞英?天津大学机械工程学院天津?300072?摘要：研究土压平衡Earth?Pressure?Balanced,?EPB盾构机刀盘刀具的布置方法，目的是为了确保刀具结构布置的合理性和实用性。依据刀具磨损的等寿命原则，提出确定刀具数量的磨损系数法和掘进系数法；针对具体施工问题，可预测盾构在开挖区间，刀具的磨损量以及许用磨损情况下刀具的掘进距离，为保障工程的安全顺利进行提供参考；基于阿基米德螺旋线布置方法，计算了以刀具磨损的等寿命原则下，主切削刀的布置曲线；提出刀具平面对称布局原则，分析刀具的切削过程，得到了单把

2、刀具的实际切深；建立了EPB盾构刀盘上先行刀的立体布局方法，计算得到先行刀的超前量；结合南京地铁二号线TA07?标段，验证了刀具布置方法的正确性。研究内容和研究方法可为EPB盾构机刀盘的设计和选型奠定理论基础。关键词：土压平衡盾构机等寿命原则刀具布置主切削刀先行刀中图分类号：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