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Multiple Choice

What term describes a subsurface detonation that creates a void beneath the pavement?

Camouflet describes a subsurface detonation that leaves a hollow cavity beneath the surface. In blasting terms, the energy of the explosion creates a void underground rather than primarily throwing material to the surface. The overlying pavement may appear largely intact at first, but the underlying void can lead to ground instability or collapse later. This is different from a crater, which is a surface depression formed by surface or near-surface explosive action; spall, which is the fragmentation of material caused by shock-wave reflections at a free surface; and a bomblet, which is a small submunition rather than an underground cavity.

Camouflet describes a subsurface detonation that leaves a hollow cavity beneath the surface. In blasting terms, the energy of the explosion creates a void underground rather than primarily throwing material to the surface. The overlying pavement may appear largely intact at first, but the underlying void can lead to ground instability or collapse later. This is different from a crater, which is a surface depression formed by surface or near-surface explosive action; spall, which is the fragmentation of material caused by shock-wave reflections at a free surface; and a bomblet, which is a small submunition rather than an underground cavity.