Blasting Excavation Induced Damage Caused to the Rock Mass Surrounding Tunnels | Zendy

Jinxing Lai | Zendy; Y C Wang | Zendy; Y Liu | Zendy

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Blasting Excavation Induced Damage Caused to the Rock Mass Surrounding Tunnels

Author(s) -

Jinxing Lai,

Y C Wang,

Y Liu

Publication year - 2021

Publication title -

iop conference series earth and environmental science

Language(s) - English

Resource type - Journals

eISSN - 1755-1307

pISSN - 1755-1315

DOI - 10.1088/1755-1315/814/1/012013

Subject(s) - rock blasting , excavation , rock mass classification , geotechnical engineering , geology , quantum tunnelling , mining engineering , constitutive equation , drilling and blasting , engineering , structural engineering , materials science , finite element method , optoelectronics

Multi-hole blasting is often used for tunneling, however, blasting can damage the surrounding rock. To study the effect of blasting on surrounding rock and the damage caused, this paper presents an equivalent load method and a damage constitutive model of surrounding rock, based on earlier works and existing literature. A numerical simulation method is adopted to predict the most vulnerable part of the surrounding rock in the tunnel under blasting load. The research results have certain guiding significance for tunnel construction.

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