Тип публикации: статья из журнала
Год издания: 2012
Ключевые слова: Splitting off, borehole electroblast, electroblast cartridge, efficiency of destruction, Capillary discharge
Аннотация: The research data of concrete disintegration and splitting off the free surface by borehole electroblast with discharge initiation by wire explosion have been presented. The wire was placed in different transfer media. We determined the effectiveness of splitting off and disintegration of concrete depending on different combinationПоказать полностьюs of the transfer media used including gel, water, and polyethylene. It is shown that long mode of energy release (T 0,5 = 36 ?s) is better than short mode (T 0,5 = 18 ?s) for splitting off. The combined usage of capillary discharge in the polyethylene and in the gel leads to the most effective disintegration of the samples. The critical electric field of E cr = 2 kV/cm leading to a breakdown of the metal vapor produced by the explosion of 0,15 mm diameter wire in 0,37 mm diameter capillary was determined. The process of disintegration of rocks and concrete blocks with an electroexplosive polyethylene cartridge and the gel is investigated. It is shown that when the stored energy is approximately 30 kJ, the electroblast splitting off of the free surface of 15x15x30 nm rock and concrete specimens takes place.
Журнал: Известия высших учебных заведений. Физика
Выпуск журнала: Т. 55, № 10-3
Номера страниц: 125-128
ISSN журнала: 00213411
Место издания: Томск
Издатель: Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Национальный исследовательский Томский государственный университет