| In the photo you can see an exposure of rock excavated with the use of explosives. The bores used for the placement of the explosives are visible and are indicated with red arrows. When using explosives as a mean of excavation is important that the amount of explosives used must be enough to facilitate the excavation of rock with mechanical methods but not too much because this could result in severe shattering and reduce of the strength of the rock mass. The photo is taken by the construction field of the Auburn dam. References: Information collected during the field trip in the Sierra Nevada, as part of the "Engineering Geology" course curriculum, instructed by Professor N. Sitar, Department of Civil & Environmental Engineering, University of California at Berkeley. |
Use of explosives in excavation of rock
available by the geoengineer website
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