FIELD: laying or reclaiming pipes.
SUBSTANCE: wells are made from the surface by heating with the use of jet heat-generating members up to the distortion of the bounds between soil particles and their mixing. The explosive is inserted into the wells and exploded. Each well is provided with at least one local divergence. A given mass of explosive is inserted under the local divergence. The explosive is exploded after the freezing of pulp in the well.
EFFECT: improved breaking of soil.
4 cl, 6 dwg
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