Seismic explosion
Seismic blasting is used to generate seismic waves , which are evaluated in the context of scientific questions using seismic methods .
Explosives used
For seismic blasting, gelatinous explosives are mostly used, which are particularly sensitized in order to be able to detonate optimally even under high pressures. A seismic wave should consist of a well-defined shock wave. This requires special requirements for a uniform detonation. Therefore z. B.
- Rioseis (formerly Seismoplast)
- Donarit S.
Supplied in screwable plastic cartridges.
Ignition means used
Special seismic detonators are required to trigger precise detonations. Normal detonators usually have an accuracy of a few milliseconds. This is not sufficient for seismic blasting. Therefore, there are special detonators that trigger with high precision.
execution
To carry out a seismic blast, one or more boreholes are drilled, the explosive is introduced with the detonators and detonated. The waves that arise and are reflected on the layers of the earth are then registered and evaluated. Refraction and reflection seismic evaluation methods are among the standard methods of geophysical investigations.
swell
- ^ Seismic Explosives. DynaEnergetics, accessed on May 4, 2017 (English).
- ↑ Austin Powder GmbH (ed.): Technical data sheet gelatin Donarit S . St. Lambrecht ( austinpowder.at [PDF]).