Halgier (SINTEF Rock & Soil Mechanics, Trondheim, Norway) Dahle 
In-Situ Rock Stress [PDF ebook] 
International Symposium on In-Situ Rock Stress, Trondheim, Norway, 19-21 June 2006

Understanding the stress state in the earth”s crust is crucial for engineers working in rock, particularly with regard to underground construction. Experience shows that an adequately high horizontal in-situ stress has a positive effect in stabilizing large span rock caverns close to the ground surface. On the other hand, high stresses resulting fr