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国际多尺度计算工程期刊

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ISSN 打印: 1543-1649

ISSN 在线: 1940-4352

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.4 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 2.2 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00034 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.46 SJR: 0.333 SNIP: 0.606 CiteScore™:: 3.1 H-Index: 31

Indexed in

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

卷 15, 册 3, 2017, pp. 239-264
DOI: 10.1615/IntJMultCompEng.2017020271
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摘要

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.

对本文的引用
  1. Meschke G., From advance exploration to real time steering of TBMs: A review on pertinent research in the Collaborative Research Center “Interaction Modeling in Mechanized Tunneling”, Underground Space, 3, 1, 2018. Crossref

  2. Bal Abdiel Ramon Leon, Dang Thai Son, Meschke Günther, A 3D particle finite element model for the simulation of soft soil excavation using hypoplasticity, Computational Particle Mechanics, 7, 1, 2020. Crossref

  3. Li Xingchun, Yang Yi, Li Xinggao, Su Weilin, Liu Zhi, Fu Yue, Study on the Mechanical Characteristics of the Screw Driving Torque during the Emptying of the Shield Soil Bin, Journal of Physics: Conference Series, 2101, 1, 2021. Crossref

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