Modeling of Shield Machine Tunneling Experiment by Discrete Element Method

Li Wu; Chang Liu

doi:10.4028/www.scientific.net/AMM.556-562.1200

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 556-562Modeling of Shield Machine Tunneling Experiment by...

Modeling of Shield Machine Tunneling Experiment by Discrete Element Method

Abstract:

To discover the interaction rules between the cutterhead of shield machine and the soils, the model experiment of shield machine tunneling is performed, and the particle discrete element model of the experiment is built. By adjusting the particle parameters, the simulated cutterhead torque is compatible with the experiment observed results. Then the displacement of soils in the front of the cutterhead, behind the cutterhead, and in the front of the chamber board is obtained. The soils in the front of the cutterhead try to flow into the nearest opening. However, the soils behind the cutterhead move toward the wall of out barrel. The movement of soils in front of the chamber board is in accordance with the rotation direction of the cutterhead.

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Periodical:

Applied Mechanics and Materials (Volumes 556-562)

Pages:

1200-1204

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.556-562.1200

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Online since:

May 2014

Authors:

Li Wu*, Chang Liu

Keywords:

Particle Discrete Element, Shield Machine, Simulation, Soils Movement, Tunneling Experiment

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* - Corresponding Author

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