SU705074A1 - Method of recovering finely-dispersed soil - Google Patents

Description

(54) METHOD FOR DEVELOPING SMALL DIFFERENT GROUND

one

The invention relates to hydromechanization in the mining industry, in particular, for subsea mining of sapropel deposits and other finely dispersed soils with dredgers, and their alluvium, in an area with large slopes and a surface of sloping dumps of an even layer.

Methods are known for the subsea development of sapropel deposits and its alluvium in checks and septic tanks, including the preparation of the area for alluvial by leveling the surface, the embankment device and the spillway well at the end of the check or septic tank 1.

Such methods require surface leveling, are characterized by a large uneven distribution of the soil along the length of the settling tank and cannot be used to put a uniform layer on an area with large slopes.

The closest to the invention is the method of developing and washing in fine soil in checks 2. This method is not applicable for washing in areas with large slopes, as erosion occurs in the soil surface and does not

a uniform layer of ground mass is achieved.

The purpose of the invention is to provide underwater mining of deposits, a uniform distribution of the soil mass, mainly in areas with large slopes.

This is achieved by pre-concentrating the pulp in the settling pond, which is placed in the upper part of the map, after which the thickened pulp is discharged into an area with a large slope. The clarified water from the top of the pond is discharged into the discharge channels, and the thickened pulp flows out of the settling pond over its entire width and evenly covers the inclined surface.

FIG. 1 given the scheme of development and alluvion, view in plan; in fig. 2 - the same, longitudinal section.

An embankment 1 is arranged in the area intended for flush, and in its upper part, a settling pond 2 with discharge wells 3. The sump is bounded from the main section by a dam 4 with bottom overflow pipes 5. From the alluvial slurry line B, pulp is fed into

Vi i; -ife. ;; .-,

one

G "

--.... .rfr..r -.

Claims (2)

, V (.. settling pond, where it is thickened by draining clarified water through water discharge wells. Condensed ground mass is produced across the entire width of the settling pond through the overflow pipes onto the surface of the washed area. The proposed method of developing and washing finely dispersed soils mainly on the area with large slopes allows to evenly distribute the soil mass and prevents erosion erosion. Claim 1. The method of developing finely dispersed soils by washing up the soil in areas with large clones, including the device map namgva soil and reset P} | SeMcnaj fld clarified water from the settling pond, characterized in that, in order to evenly distribute the ground mass, the alluvium is produced with a preliminary thickening of the pulp in the settling pond, which is placed in the upper part of the map, after which the thickened pulp is released onto the washed area . 2. A method according to claim 1, characterized in that the thickened pulp flows out of the settling pond throughout its width. Sources of information taken into account in the examination 1. Tsarevsky AM Hydromechanization of land reclamation. M., "Agricultural Publishing House, 1963, p. 75 2. Melaput D. A. Hydromechanization in irrigation and agricultural construction. M., “Stroyizddat, 19b7, p. 87