1. Explosive demolition methods

1.1 Methods used

Until 1986, the engineer had only 2 options for blasting buildings:

• slow lightning (figure 1 a ), which involves collapsing the building in on itself in about ten seconds;

• the tilting of the building by means of a low hinge (figure 1 b ), after opening a front corner with an explosive (like a woodcutter cutting the bottom of a tree with an axe).

Since 1986, CEBTP-CEMEREX has developed the following 5 other methods whose accuracy is no longer in doubt:

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