METHOD OF ERECTION OF IMPERVIOUS MEMBRANE OF BULK SOIL DAM

摘要

FIELD: construction.;SUBSTANCE: invention falls within the domain of hydraulic engineering, namely, to the technological methods of erection of a bulk soil dam of an impervious membrane. The method includes the formation of a cavity in the form of a trench located within the limits of thickness of a waterproof element of the impervious membrane between two rows of sheathing blocks, filling of this cavity with material of a waterproof element, stacking in lateral prisms of a dam of the sequential layers of ground, extraction of sheathing blocks and formation of transition layer-filters of a waterproof element by filling in of fractional material. As sheathing blocks, inventory metallic cases with hinged vibrators located on their internal partitions and without bottoms are used. The formation of transitional layer-filters of a waterproof element is accomplished by filling in of fractional bulk material into cases, simultaneously compacting it by means of hinged vibrators. In this case firstly, the transitional layer-filters with temporarily strung between themselves the end walls of the inventorial metallic cases are formed. After stacking into the lateral prisms of the dam of the sequential layers of ground, the cavity is filled in the form of a trench, formed between two rows of metal cases with a material of waterproof element. After this, are separated the end walls of the inventorial metallic cases and the last are alternatively extracted when the hinged vibrators are switched on.;EFFECT: ensures an increase in the filtration strength of the impervious membrane and economy of the material of its transition layer - filters.;1 dwg