Considerations about rock pressure and its effect on the headings of tunnels and big excavations in rock by blasting (in German) : Heltzen, A M Rock Mech, Suppl 6, 1978, P133–137 (paper to 25th Geomechanical Colloquium, Austrian Society for Geomechanics, Salzburg, 14–15 Oct 1976)

• Publisher: Elsevier Science
• Year: 1979
• Tongue: English
• Weight: 117 KB
• Volume: 16
• Category: Article
• ISSN: 0148-9062
• DOI: 10.1016/0148-9062(79)90393-0