METHOD FOR RECULTIVATION OF INWASH TAILINGS POND ADJACENT TO SLOPE Russian patent published in 2010 - IPC E21C41/32 E02B7/06 

FIELD: construction.

SUBSTANCE: method consists in formation of recultivation body over filled pond from wastes with specified convex shape of external surface required for water drain, increase of pond capacity and improvement of esthetic value of landscape, and in coverage of external surface of recultivation body with a layer of soil. At least lower part of recultivation body is formed in tiers, every of which is washed under protection of barrier element by means of dispersed pulp discharge from pulp line to create a setting pond adjacent to slope and beach, with width specified by safety condition around barrier element, which provides, within the limits of tier height, giving recultivation body specified shape of external surface, afterwards upper part of recultivation body is formed. To obtain all of this, at least one water intake bucket is made on slope in the form of canal, which connects overtile to settling pond, and its sides are formed by means of excavation and/or backfill and exceed water level in settling pond. Upper part of recultivation body is formed by means of settling pond washing by wastes of settling pond with water displacement into canal done through dispersed discharge of pulp from pulp line at the side of slope. Length of canal section that varies in process of wastes washing from inlet threshold formed by wastes to overtile l_o by means of canal extension towards settling pond is brought in compliance with the following condition: l_o≥(h_s-h_t)/i_under, where h_s - specified depth of water upstream overtile; h_t - depth of water at inlet threshold of canal; i_under - average inclination of surface in underwater washing-in of wastes.

EFFECT: simplified erection of new overtile, increased reliability of pond and quality of water clarification.

5 cl, 5 dwg