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.
Similar articles
Determination of operation modes of step mine drainage systems without intermediate water collectors
2008 O. V. Kabanov, D. A. Zadkov, S. O. Kabanov
Development and research of the arrangement of the executive body of the tunneling complex for the mines of OJSC Metrostroy
2008 D. A. Jungmeister, S. A. Ignatiev, A. Ya. Burak, S. A. Konovalov
Determination of quantity of coal grains by equations of total characteristic of coarseness
2008 A. B. Nezametdinov
Modern methods of controlling the work of powerful excavator-automobile complexes at quarries
2008 A. A. Kuleshov