FIELD: disposal of radioactive wastes.
SUBSTANCE: proposed method for building radioactive waste disposal structure involves formation of horizontal helical system of round-section transport and room tunnels penetrated by single mechanized tunneling machine including erection of grade-crossing elimination structures. Helical system of tunnels is made in the form of ellipse with variable distance between adjacent tunnels of helical system. Grade-crossing elimination structures are erected at two diametrically opposite points of system where each pair of tunnels is joined to form single tunnel communicating with adjacent coupled tunnel through crossover. Tunnel-to-tunnel distance is predetermined at several points by simulation including heat and radiation load on soil mass.
EFFECT: enhanced radiation safety and reduced construction charges.
1 cl, 2 dwg
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