METHOD OF FORMING A CUTTING CAVITY BY CHARGES WITH A CUMULATIVE EFFECT,

Abstract

The object of the invention is a method of forming a cutting cavity by charges of cumulative action. To increase the efficiency of the blast hole and to lower the expenditure of explosives, the blast holes for the cumulative charges are arranged more or less in a circle, and more or less in the center there is located the blast hole for the regular charge. The cumulative charges in the blast holes are mainly arranged from the coal face to the middle of the length of the blast hole, and the regular charge from the middle up to the mouth of the blast hole. The cumulative charges are exploded at the same time and with a delay with relation to the explosion of the center blast hole.

Document Details

Document Type
Technical Report
Publication Date
Mar 22, 1965
Accession Number
AD0613454

Entities

People

  • V. F. Vedutin

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Efficiency
  • Explosions
  • Explosives
  • Intellectual Property
  • Inventions
  • Patents

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Electrical Engineering
  • Environmental Impact Assessment (EIA) of Proposed Air Force Base Actions.