Estimation of mechanical properties of complex roof rocks in mines of the Leningrad oil shale deposit
Abstract
The geological section of the roof of the Leningrad deposit is rather complex and is characterized by a great variety of lithological types (from weak clay shales to very strong limestones), their variability in terms of distance from the tundish roof and thickness. The most dangerous in terms of the possibility of collapse is a 90-centimeter layer of rocks, counting from the roof of the promplast, the section of which is the most complex and can be generalized in the following form.
Область исследования:
(Archived) Without section
References
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