A Model of Shield Jack Thrust to Shield Attitude

The attitude of the shield tunneling machine （ or ＂shield＂ for short） during tunneling is important to tunnel excavation and construction quality, which results from a combination of jack thrust, ground displacement around the shield, and ground mechanics parameters, etc. A shield attitude model inv...

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Bibliographic Details
Published in东华大学学报（英文版） Vol. 28; no. 2; pp. 124 - 127
Main Author 郭正刚 孙伟 岳明
Format Journal Article
LanguageEnglish
Published School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China 2011
Subjects
attitude control
shield
ground displacement analysis
jack thrust
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ISSN1672-5220

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Summary:The attitude of the shield tunneling machine （ or ＂shield＂ for short） during tunneling is important to tunnel excavation and construction quality, which results from a combination of jack thrust, ground displacement around the shield, and ground mechanics parameters, etc. A shield attitude model involving elements above was proposed. In this model, ground displacement was taken to calculate the load around the shield. Ground mechanics parameters were involved. Based on the shield load model, the needed jack thrust for shield desired attitude was derived. The proposed method is validated using engineering data, and lays reliable foundation for shield attitude control.
Bibliography:31-1920/N
shield; ground displacement analysis; jack thrust; attitude control
The attitude of the shield tunneling machine （ or ＂shield＂ for short） during tunneling is important to tunnel excavation and construction quality, which results from a combination of jack thrust, ground displacement around the shield, and ground mechanics parameters, etc. A shield attitude model involving elements above was proposed. In this model, ground displacement was taken to calculate the load around the shield. Ground mechanics parameters were involved. Based on the shield load model, the needed jack thrust for shield desired attitude was derived. The proposed method is validated using engineering data, and lays reliable foundation for shield attitude control.
GUO Zheng-gang, SUN Wei, YUE Ming School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
ISSN:1672-5220