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Method for erecting screw-type supporting structure
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Plant for erection of piles
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Valve gate
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Device for soil sampling
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Pile driver
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Fish conservation works gate
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Fish protection structure
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Fish-ladder for water-power development
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Airlift device for working trenches in boulder-pebble ground
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Apparatus for drilling boreholes
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Well screen
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Auger drill
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Drilling bit
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SU1717711A1
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Embankment erecting method
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Method for determining strength and strain parameters of rocks and materials
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Arrangement for reinforcing rock-and-earth dam
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Method of determination of soil strain characteristics
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Rock testing method
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Fish protecting structure
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Dredger
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