Three-dimensional peridynamics modeling of rock cutting considering disc cutter rolling motion

IF 5.6 1区工程技术 Q1 ENGINEERING, GEOLOGICAL

Acta Geotechnica Pub Date : 2025-03-13 DOI:10.1007/s11440-025-02595-x

Xiaonan Shang, Jian Zhou, Fushen Liu, Yicheng Jiang, Xingchuan Liao

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Abstract

In this work, we utilize the peridynamics method, known for its advantages in addressing fracture problems, to simulate the three-dimensional rock-cutting process employed by tunnel boring machines (TBMs). The approach decomposes the rolling motion of disc cutters into rotation and advancement, allowing us to separately analyze linear and rotary rolling motions within the computational framework. We introduce a novel contact model designed to exert stable normal contact force and appropriate rolling contact force experienced by the disc cutter as it rolls. Our simulations of linear and rotary cutting tests provide insights into the typical fragmentation patterns of the rock and the dynamic trends of contact forces on the disc cutter. Additionally, we discuss methods to estimate the wear depth and volume on the disc cutter as it operates, enhancing the prediction of cutter lifespan and efficiency. This paper presents a dependable method for analyzing the interaction between the disc cutter and rock during the cutting process.

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来源期刊

Acta Geotechnica ENGINEERING, GEOLOGICAL-

CiteScore

9.90

自引率

17.50%

发文量

297

审稿时长

4 months

期刊介绍： Acta Geotechnica is an international journal devoted to the publication and dissemination of basic and applied research in geoengineering – an interdisciplinary field dealing with geomaterials such as soils and rocks. Coverage emphasizes the interplay between geomechanical models and their engineering applications. The journal presents original research papers on fundamental concepts in geomechanics and their novel applications in geoengineering based on experimental, analytical and/or numerical approaches. The main purpose of the journal is to foster understanding of the fundamental mechanisms behind the phenomena and processes in geomaterials, from kilometer-scale problems as they occur in geoscience, and down to the nano-scale, with their potential impact on geoengineering. The journal strives to report and archive progress in the field in a timely manner, presenting research papers, review articles, short notes and letters to the editors.