METHOD FOR TIER STOCKING OF GRAIN WASTES INTO SLUDGE POND DRAINED NEAR BASE OF BEACH ZONE Russian patent published in 2011 - IPC E02B7/06 

FIELD: construction.

SUBSTANCE: invention relates to hydraulic engineering and is intended to tier stocking of grain wastes into sludge ponds drained near base of beach zone. Method includes creation of reservoir of the first tier by erection of primary dam, inwash of wastes into reservoir of the first tier with arrangement of beach zone upstream primary dam, and a settling pond is developed at the distance, serial creation of reservoirs of upper tiers by erection of previous tier of raised dam each time on the inwash beach, and inwash of wastes into tier reservoir every time with arrangement of beach zone and preservation of settling pond. At least in front of one raised dam a fore apron is created, which provides for creation of aerated zone between itself and base of beach zone in wastes, specified under the conditions of dimensions safety. Fore apron is created from inwash wastes by means of water permeable fabric made of geotextile material. Fabric is laid in serial sections onto inwash beach in specified area of fore apron creation after termination of wastes inwash on the section, erection of another raised dam and immediately before recovery on inwash section. Rated diameter of water conducting (filtering) openings of water permeable fabric D₀ ^rn provides first for creation of transition layer directly in front of water permeable layer from wastes, where particles of wastes are arranged according to principle of return filter, and then for creation of antifiltration layer in front of this transition later, within the limits of which the pore space in wastes is mudded with fine particles.

EFFECT: savings of funds and simplification of works.

2 cl, 1 dwg