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Rock burst

Added Tue, 11/10/2016
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Mountain strike is called brittle fracture an extremely hard part of the reservoir rocks (coal) adjacent to the mine workings that occur in conditions when the rate of change of the stress state in this part exceeds the speed limit stress relaxation in it (due to plastic deformation). In a mountain strike involved the elastic energy of the layer in the center of the punch and energy of the surrounding rock. This phenomenon is accompanied by a sharp sound; waste rock in mining production, dust and air waves. Elastic expansion of the rock mass adjacent to the focus of destruction creates seismic waves propagating in the mountain blow of great strength for hundreds of kilometers. The destruction of the avalanche and ends with the formation of the stable form of a cavity with backwater from the thrown rocks. The result of rockbursts be accidents in mines, coupled with the destruction of the lining and equipment, damage to health or death.

Often this phenomenon is associated with the mountain spirit or Shubin.

Translated by «Yandex.Translator»


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