Accession Number:

ADA513723

Title:

Adit Debris Projection Due to an Explosion in an Underground Ammunition Storage Magazine

Descriptive Note:

Conference paper

Corporate Author:

NORWEGIAN DEFENCE RESEARCH ESTABLISHMENT KJELLER

Report Date:

1996-08-01

Pagination or Media Count:

13.0

Abstract:

The main hazards from accidental explosions in underground ammunition storage magazines are the air blast propagation and the structural debris projection exposing the terrain outside the tunnel exit. In this paper we focus on the adit debris projection part of the problem, which is not as thoroughly examined as the air blast propagation. The existing prediction methods for the adit debris quantity distance are based on a fairly small number of trials. The sparse test data available makes it difficult to establish reliable formulas for the maximum debris projection distance and the lethal debris density limit. Great care must be taken when analysing such a sparse set of data, because interpolation, and especially extrapolation, may lead to non-physical relations. In this paper we describe a method which combines theory and test data in order to extract as much knowledge as possible from the available trial results. Only the dominating physical processes are described by the model, using simple analytical formulas. Test data are used to describe the processes that can not be approximated analytically. The simulation results from a numerical code handling the required calculations are consistent with the available test data.

Subject Categories:

  • Explosions

Distribution Statement:

APPROVED FOR PUBLIC RELEASE