Article | REF: C5420 V2

Use of explosives in civil engineering

Authors: Alain BLANCHIER, Anne Charline SAUVAGE

Publication date: February 10, 2004 | Lire en français

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2. Shooting plan design

Designing a blast plan involves defining the drilling geometry, mine loading and initiation dates. Basically, it consists of ensuring :

$1$ the normal operation of the charges to provide them with a suitable free surface and clearance volume: this involves controlling the operation of the blast, mine by mine: this principle is governed by so-called efficiency rules. The processes of fragmentation (propagation of shockwaves and gases) and rock displacement (swelling of the massif) must have time to take place;
$2$ correct product operation, avoiding problems of explosive desensitization (inability to initiate);

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