ライブラリ登録: Guest
Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集
International Journal for Multiscale Computational Engineering
インパクトファクター: 1.016 5年インパクトファクター: 1.194 SJR: 0.554 SNIP: 0.68 CiteScore™: 1.18

ISSN 印刷: 1543-1649
ISSN オンライン: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.2017020271
pages 239-264

A COUPLED COMPUTATIONAL APPROACH FOR THE SIMULATION OF SOIL EXCAVATION AND TRANSPORT IN EARTH-PRESSURE BALANCE SHIELD MACHINES

Thai Son Dang
Institute for Structural Mechanics, Ruhr-Universität Bochum
Nicola Wessels
Institute of Mechanics of Materials, Ruhr-Universität Bochum
Ngoc-Son Nguyen
GeM Institute, University of Nantes
Klaus Hackl
Ruhr University Bochum, Bochum, Germany
Günther Meschke
Institute for Structural Mechanics, Ruhr-Universität Bochum

要約

A prototype modeling framework for the coupled simulation of excavation processes at the tunnel face and the subsequent transport of the foam-soil mixture within the pressure chamber of EPB shield machines is proposed. The discrete element method is used for the modeling of soil excavation and the stabilized finite element method, using a non- Newtonian fluid model, is employed for the modeling of fluid transport. A variational approach is applied to directly obtain interparticle parameters of the DEM from a macroscopic strength criterion. A 2D numerical simulation model for a simplified representation of the cutting process at the tunnel face and the transport of the excavated soil-foam mixture is used to demonstrate the proposed coupled excavation-transport modeling approach. According to the proposed coupled DEM-FEM model, the mass flow obtained from the excavation simulation by means of the DEM serves as the input for the finite element flow simulation to generate the pressure distribution within the excavation chamber. It is shown that the proposed approach helps to obtain insight into the coupled excavation and transport processes at the tunnel face and the spatiotemporal distribution of the face pressure.


Articles with similar content:

UPSCALING OF DUAL-POROSITY MODELS FOR GAS TRANSPORT IN ORGANIC-RICH SHALES
Composites: Mechanics, Computations, Applications: An International Journal, Vol.7, 2016, issue 3
A. N. Vlasov, Alexey Talonov, Viktoria L. Savatorova
TUBE LEAKAGE EFFECT ON RADIATIVE HEAT FLUX IN BOILER
ICHMT DIGITAL LIBRARY ONLINE, Vol.7, 1995, issue
Daniel Rolph Schneider, Nikola Serman, Neven Duic, Naim Hamdia Afgan, Zeljko Bogdan
Numerical predictions of the heavy gas turbulent dispersion and its influence on a people crowd evacuation: an integrated approach
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2018, issue
S. Zwinkels, Sasa Kenjeres
DISTRIBUTION OF MASS FRACTIONS IN THE FREE JET OF HOT GAS MIXTURE
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, Vol.9, 2005, issue 1
I. Jakubova, Milan Hrabovsky, J. Senk, J. Gregor
GAS SIDE FOULING IN REFUSE-WASTE INCINERATORS. prediction of local deposition rates
Proceedings of an International Conference on Mitigation of Heat Exchanger Fouling and Its Economic and Environmental Implications, Vol.0, 1999, issue
M. C. van Beek, J. G. Wijers, Anton A. van Steenhoven, Camilo C. M. Rindt