Study on stress wave propagation and failure characteristics of key parts in tunnel under blasting load
Jichao Duan, Qi Zong, Haibo Wang, Bing Cheng, Pengfei Gao · 2024
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Description
Jichao Duan, Qi Zong, Haibo Wang, Bing Cheng, and Pengfei Gao study in a 2024 paper how blast waves harm tunnels. Blasts near a tunnel send stress waves through rock that can crack key parts of the structure. Knowing how those waves move helps engineers judge risk.
A lab model made of cement mortar stood in for rock, with blasts set at varied heights above the tunnel. Strain gauges and fast cameras caught wave motion and crack growth in real time. Peak strain rose as blast points drew closer, and damage grew with it. Computer models matched the lab strains well, which backs their use. Lower blasts also raised pressure, speed, and shake at points inside the tunnel.
Catalog record
| CREATOR | Jichao Duan, Qi Zong, Haibo Wang, Bing Cheng, Pengfei Gao |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 52 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |