Interaction of cutting disc with heterogeneous ground

  • In this contribution, the peridynamic theory [1] is utilized to analyze the interaction of cutting disc of a Tunnel Boring Machine (TBM) with mixed (heterogeneous) ground conditions. Peridynamic formulations, in contrast to classical continuum theory, do not contain spatial derivatives [1,2], which makes it a preferable tool for modeling phenomena involving discontinuities, such as complex fracture and fragmentation processes [3]. The model was initially used to simulate a full-scale Linear Cutting Machine (LCM) test for various penetration levels [4]. The cutting forces obtained were in agreement with the experiment [5]. Excavation process in mixed ground conditions is analyzed using simulations in which a cutting disc moves from a soft ground (soil, weathered rock or soft rock) region into a hard rock region. There is a sudden increase in the force on the cutting disc as it moves from a soft to hard ground, this abnormal peak in force is further investigated with respect to various tool penetrations.

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Author:Sahir ButtORCiDGND, Günther MeschkeORCiDGND
Parent Title (English):Proceedings in applied mathematics & mechanics
Place of publication:Weinheim
Document Type:Article
Date of Publication (online):2024/03/08
Date of first Publication:2021/01/25
Publishing Institution:Ruhr-Universität Bochum, Universitätsbibliothek
Issue:1, Artikel e202000060
First Page:e202000060-1
Last Page:e202000060-2
Dieser Beitrag ist auf Grund des DEAL-Wiley-Vertrages frei zugänglich.
Institutes/Facilities:Lehrstuhl für Statik und Dynamik
Dewey Decimal Classification:Technik, Medizin, angewandte Wissenschaften / Ingenieurbau, Umwelttechnik
open_access (DINI-Set):open_access
faculties:Fakultät für Bau- und Umweltingenieurwissenschaften
Licence (English):License LogoCreative Commons - CC BY 4.0 - Attribution 4.0 International