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Geotechnical and Geological Engineering

Erschienen in:

09.01.2019 | Original Paper

Numerical Study of Damage Evolution Law of Coal Mine Roadway by Particle Flow Code (PFC) Model

verfasst von: Wan-rong Liu, Xiao Wang, Chuan-ming Li

Erschienen in: Geotechnical and Geological Engineering | Ausgabe 4/2019

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Abstract

Deformation and destruction of roadway surrounding rock is one of the main causes of coal mine accidents. In this paper, the horseshoe-shaped roadway model was established by particle flow code firstly and then analyzed the roadway damage process through the contact force chain, deformation displacement and distribution of micro-cracks. The research result show that the parallel bond model can well simulate the damage process of the coal mine roadway. The surrounding rock can be divided into four zones from the roadway side to the deep rock mass. The micro-contact force chain is the force transmission path and the principal stress is the macroscopic reflection of the micro-contact force chain.

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Titel: Numerical Study of Damage Evolution Law of Coal Mine Roadway by Particle Flow Code (PFC) Model
verfasst von: Wan-rong Liu
Xiao Wang
Chuan-ming Li
Publikationsdatum: 09.01.2019
Verlag: Springer International Publishing
Erschienen in: Geotechnical and Geological Engineering / Ausgabe 4/2019
Print ISSN: 0960-3182
Elektronische ISSN: 1573-1529
DOI: https://doi.org/10.1007/s10706-019-00803-6

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