Separation of drilled cylindrical billet from rock massif
About authors
- 1 — G.V. Plekhanov Saint Petersburg Mining Institute
- 2 — G.V. Plekhanov Saint Petersburg Mining Institute
Abstract
The cylindrical stone blocks of large diameters (300-800 mm) are used as shafts of papermaking machines, which set up exclusive standards to fissuring of stone. The present paper describes a special device for separation of cylindrical stone blocks from the bottom without destruction of the surrounding rock mass shutting out appearance of fissuring in the stone.
References
- Борисович В.Т. Подрезка керна при бурении шурфо-скважин и стволов шахт // Изв. вузов. Геология и разведка. 1968. № 12.
- Карасев Ю.Г. Процессы и технология горных работ на карьерах стенового и облицовочного камня. М.: Недра, 1996.
- Моделирование процесса отделения керна при бурении скважин большого диаметра / В.Т.Борисович, Л.Г.Грабчак, В.А.Плохих, О.Н.Михайлов // Изв. вузов. Геология и разведка. 1968. № 12.
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