Excavation unloading‐induced fracturing of hard rock containing different shapes of central holes affected by unloading rates and in situ stresses

Excavation unloading‐induced fracturing of hard rock containing different shapes of central holes affected by unloading rates and in situ stresses

Abstract Slabbing failure and strain rock burst are the main failure patterns during the excavation and construction phases of deep tunnels in hard and brittle rock, which cause unexpected equipment damage and casualties. This study presents a numerical simulation with an unloading central hole with...

Full description

Bibliographic Details
Main Authors: Fan Feng, Shaojie Chen, Diyuan Li, Wanpeng Huang, Kang Peng, Chuanwei Zang
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Energy Science & Engineering
Subjects:
crack propagation
excavation unloading
FEM/DEM
in situ stresses
sectional shape
unloading rate
Online Access:https://doi.org/10.1002/ese3.486

Internet

https://doi.org/10.1002/ese3.486

Similar Items