METHOD FOR ERECTING HYDROENGINEERING CONSTRUCTION Russian patent published in 1995 - IPC

FIELD: hydraulic engineering. SUBSTANCE: internal and external shells are dipped into base ground down to a design deep upon installation onto the bottom of a reservoir when erecting hydroengineering construction. Cavity of internal shell is then filled with backfill ground in part. Backfill ground are mixed with base ground in the cavity of the internal shell, and below the level of its lower face at design level, and formed ground mixture is compressed simultaneously using vibrator for deep compression of grounds. Annular cavity between walls of internal and external shells is filled with backfill ground then, where base ground is mixed with backfill ground down to the same deep by the same way, and formed ground mixture is compressed. Base ground wash out around internal shell is prevented at the expense of the fact, that external shell is dipped into base ground. Since common bed of compressed ground mixture is generated in construction base under lower end of both shells, the magnitude of stresses in construction base are decreased and possibility of considerable settlements horizontal shifts in the construction is decreased under action external loads on the construction. Cavity of internal shell is filled and compressed layer-by-layer. Installation of upper structure on upper part of internal shell is the final operation. EFFECT: possibility to build a structure on weak soils. 2 dwg