A Simplified Numerical Method to Determine the Loads Acting on the Cutterhead of a Compound Shield

Fei Jiang He; Qiang Zhang; Zong Xi Cai

doi:10.4028/www.scientific.net/AMR.199-200.25

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 199-200A Simplified Numerical Method to Determine the...

A Simplified Numerical Method to Determine the Loads Acting on the Cutterhead of a Compound Shield

Abstract:

In order to determine the loads acting on the cutterhead of a compound shield, this paper aims at the large-scale and fully coupled system of the excavation face. Firstly, a new model is proposed to calculate the loads acting on a single cutter, in which the earth pressure of the chamber is taken into consideration. Then, by transforming the large-scale nonlinear contact problem into a smaller one, we set up the governing equations only including the penetration depth of cutters in the approach of the sub-structure condensation, to calculate the loads acting on the cutterhead. Finally, the relationship between the penetration per revolution and the total thrust and total torque acting on the cutters of the cutterhead of a compound shield is investigated.

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Periodical:

Advanced Materials Research (Volumes 199-200)

Pages:

25-31

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.199-200.25

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Online since:

February 2011

Authors:

Fei Jiang He, Qiang Zhang, Zong Xi Cai

Keywords:

Compound Shield, Loading, Nonlinear Contact

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