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Vol 195
Pages:
120
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Amount of explosive destruction zones for cracked rocks with different crack filler for example Mikhailovsky GOK

Authors:
M. G. Menchzhulin1
A. V. Fedoseev2
About authors
  • 1 — Saint Petersburg State Mining University
  • 2 — Saint Petersburg State Mining University
Date submitted:
2011-07-01
Date accepted:
2011-09-15
Date published:
2012-01-01

Abstract

Present at the Mikhailovsky GOK, as in most such enterprises, the problem of oversize output entails additional time and material costs of preparing the rock for  processing. Calculation of fracture zones to reach their contacts will give an  opportunity to improve the efficiency of blasting. In this paper we consider the size dependence of fracture zones of fractured rocks from the characteristics of stress waves. Changing characteristics, in  turn, caused the value of  the crack opening and characteristics of matter, they are filled. The calculation of fracture zones  for ferruginous quartzite. Received the recommended dimensions of the grid of wells, depending on the type of crack filler.

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References

  1. Волны напряжений в обводненном трещиноватом массиве / В.А.Боровиков, И.Ф.Ванягин, М.Г.Менжулин, C.B.Цирель. Л., 1989.
  2. Кутузов Б.Н. Методы ведения взрывных работ. Ч.2. Взрывные работы в горном деле и промышленности: Учебник для вузов. М., 2008.
  3. Ханукаев А.Н. Физические процессы при отбойке пород взрывом. М., 1974.
  4. Якобашвили О.П. Сейсмические методы оценки состояния массива горных пород на карьерах. М., 1992.

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