METHOD FOR RIVER BED CLEANUP, DEEP DREDGING AND STRAIGHTENING Russian patent published in 2012 - IPC E02B3/02 E02B15/00 

Abstract RU 2450101 C2

FIELD: construction.

SUBSTANCE: method includes erection of bulkhead structures 4 with discharge openings 5 at river bed 1. At that water is accumulated in ponds and water reservoirs at level higher than location of bulkhead structures 4 by opening of discharge openings 5 in structures 4. Bulkhead structures 4 are created by ice-cakes freezing in winter period in pits 3 made in silty areas 2 in autumn. Space under ice-cake serves as discharge opening 5. At that ice-cake 4 cis shifted by water flow along the stream until it thrusts into soil and rises at bottom height. Ice-cake 4 creates water accumulation in volume and water head down-stream. At areas where river made meanders pit 3 is made with entry to side of river bed straightening with calculation of intense flow channel closure by ice-cake 4 towards old river bed. Straightened section will create cut-off meander 7.

EFFECT: method allows recovery of natural river bed, preservation of ichthyofauna and reduce consumption of resources.

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RU 2 450 101 C2

Authors

Ovchinnikov Aleksandr Andreevich

Dates

2012-05-10Published

2010-07-07Filed