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Vol 148 No 1
Pages:
210-213
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RUS
Research article
Without section

Explosion energy control during core charge excitation by shockwave action

Authors:
B. U. Raskildinov
About authors
  • Satbayev University
Date submitted:
2000-06-05
Date accepted:
2000-07-26
Date published:
2001-01-01

Abstract

One of the ways to improve the efficiency of drilling and blasting operations is to improve the design of borehole and borehole column-mounted charges during explosive blasting of solid minerals. The analysis of existing designs of explosive charges, used for stripping the rock mass at mining enterprises, allows to note that along with the widespread solid cylindrical column of explosives, quite a large number of more effective designs, allowing to actively manage the energy of the explosion in the destruction of the rock massif, has been developed. These designs are based on the extensive use of a number of factors: reducing the initial pressure of the explosion products, increasing the time of their impact on the massif, creating several groups of detonation waves in the charge, cumulation, etc. However, despite the advantage of dispersed charges compared with solid charges, they have not yet found wide application due to the significant material and time costs of charging boreholes or wells.

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References

  1. А.с. 1780 361 СССР. Способ отбойки крутопадающих тонких жил / Б.У.Раскильдинов. Х.А.Юсупов и др. 1992. (ДСП).
  2. Бипгимбаев М.Ж. Выбор рациональных параметров шпуровой отбойки при выемке пологопадаюших залежей / М.Ж.Битимбаев, С.Н.Бекбаев, Б.У.Раскильдинов и др. // Горный журнал. 1987. № 7.
  3. Патент 2298 РК. Е 21С 37/00. Способ отбойки горных пород / Б.У.Раскильдинов, Э.И.Альзамарова. Опубл. вБ.И. 1995. №3.
  4. Патент 2298 РК. Е 21С 37/00. Способ отбойки рудного массива / Б.У.Раскильдинов. Опубл. в Б.И. 1995. №3.
  5. Патент 3603 РК. Е 21С 37/00. Способ отбойки крутопадающих тонких жил / Б.У.Раскильдинов, Х.А.Юсупов и др. Опубл. в Б.И. 1996. № 2.
  6. Раскилъдинов Б. У. Определение расстояния передачи детонации между частями рассредоточенного воздушными промежутками колонкового заряда // Газодинамика взрывных и ударных волн, детонационного и сверхзвукового горения: Тезисы Всесоюз. симпозиума. Новосибирск, 1991.
  7. Раскилъдинов Б.У. Совершенствование конструкции рассредоточенных колонковых зарядов // Актуальные вопросы современной науки и техники. Алматы, 1994. 4.1.

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