FIELD: construction industry, running of railways in permafrost regions. SUBSTANCE: water-diversion ditch in permafrost soils, predominantly in mari with little run-off, has shape of rectangular trench with bottom and walls. Trench is filled with draining material to ensure natural thawing and subsequent compaction of thawed soil. Bosom between embankment and water- diversion ditch is filled with soil excavated from trench with inclination of embankment to form everfrost lock preventing penetration of water under base of embankment. EFFECT: enhanced efficiency of work and stability of water-diversion ditches in permafrost regions. 2 dwg
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