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《Chinese Journal of Underground Space and Engineering》 2012-01
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Research on Calculation of Thrust and Cutter Head Torque on Shield in Complex Strata

Chen Renpeng1,2,Liu Yuan1,2,Tang Lvjun1,2,Zhou Baogsheng3(1.Institute of Geotechnical Engineering,Zhejiang University,Hangzhou 310058,China; 2.MOE Key Laboratory of Soft Soil and Geoenvironmental Engineering,Hangzhou 310058,China; 3.Shenzhen Municipal Engineering Corp,Shenzhen,Guangdong 518034,China)  
Thrust and cutter head torque are controlling parameters in shield designing,manufacturing and driving.Based on the analysis of the interaction of shield and soil in the process of shield driving,the factors which influence the thrust and cutter head torque are analyzed.The modified formula of calculating thrust has taken the influence of the effect of cutter head compressing the front soil and pressure distribution pattern in soil chamber into consideration and the modified formula of calculating cutter head torque,which has taken accout of the composite influence of effect of cutter head compressing the front soil and permeability of soil,were deduced.Through the analysis of the measured data of Xiangxiang section in Shenzhen Metro Line No.2,the adaptability of these modified formulae in complex strata were proved.The modified formula will provide some positive guideline to design a better EPB machine and predict the driving parameters.
【Fund】: 国家重点基础研究发展计划(2007CB714001);; 教育部新世纪优秀人才支持计划资助项目(NCET-08-0491);; 浙江省151第一层次人才支持项目
【CateGory Index】: U455.39
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【Citations】
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【Co-citations】
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