|
SU1666775A1
|
|
Draining device of water engineering turnnel
|
|
SU1686173A1
|
|
Lining of underground structure
|
|
SU1654420A1
|
|
Pipe under embankment
|
|
SU1666741A1
|
|
Method of construction of near-entrance section of tunnel
|
|
SU1638246A1
|
|
Method for construction of hydraulic tunnel under earth
|
|
SU1666742A1
|
|
Intersection of tunnels of various heights
|
|
SU1613627A1
|
|
Mine working support for active tectyonic rupture area
|
|
SU1576476A1
|
|
Method of laying track for travelling crane
|
|
SU1441016A1
|
|
Steel-ferroconcrete tunnel lining
|
|
SU1448066A1
|
|
Junction of pressuse-free tunnels
|
|
SU1393872A1
|
|
Method of constructing water spillway in the body of earth dam
|
|
SU1346723A1
|
|
Deep water intake of hydraulic power plant
|
|
SU1346727A1
|
|
Contact drain of concrete structure
|
|
SU1357494A1
|
|
Lining of hydraulic engineering tunnel
|
|
SU1326734A1
|
|
Lining of underground structure vault
|
|
SU1423679A1
|
|
Water spillway path of hydraulic power station
|
|
SU1298300A1
|
|
Lining of hydraulic tunnel
|
|
SU1305246A1
|
|
Lining of hydraulic tunnel and method of producing same
|
|
SU1335630A1
|
|
Water duct closure
|
|
SU1271932A1
|
|
Method of constructing tunnel spillway for construction and operation purposes
|
