FIELD: construction industry.
SUBSTANCE: invention refers to construction industry and is meant for draining underground constructions where there are no hydraulic connections with water areas of rivers, seas and oceans. Drainage method of flooded underground construction includes device installed at lock chamber construction inlet, compressed air supply to construction, determination of location of connection strip and its tightness by means of air bubbles appearing on water area surface. During draining process, underground construction's inner surfaces shall be made water-proof by means of additional temporary ice lining, and then by means of cooling the above surfaces to temperatures below freesing and water vapour supply to construction.
EFFECT: providing waterproofness of underground construction during construction's rehabilitation and improving construction's rehabilitation processability.
1 dwg
