Different kind tunnels.
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https://www.nature.com/articles/s41598-023-29803-6
The Karadon mine, where field studies were carried out, is located in the north west of Turkey and is considered to be a highly gaseous coal mine. Explosives and ignition systems used in underground coal mines are determined by laws, statutes,...
https://www.nature.com/articles/s41598-023-29803-6
Drilling and blasting designs for parallel hole cut and V-cut method in excavation of underground coal mine galleries
www.nature.comThe Karadon mine, where field studies were carried out, is located in the north west of Turkey and is considered to be a highly gaseous coal mine. Explosives and ignition systems used in underground coal mines are determined by laws, statutes,...