RU1772306C - Method for construction of river embankment on weak ground - Google Patents

Abstract

Usage: in hydraulic engineering, in particular during the construction of alluvial structures. SUMMARY OF THE INVENTION: in the method for erecting a bunion ditch of an alluvial structure on low-strength soils, the dyke bunds are constructed from industrial wastes of organic and inorganic origin by layer-by-layer dumping of material of varying fineness with alternating dumping and alluvial. 4 ill.

Description

The invention relates to the field of hydraulic engineering construction, in particular, to methods for erecting dams of the bunding of alluvial structures: dumps of thermal power plants, tailing dumps, as well as slurry dumps.

The purpose of the invention is to reduce the cost of erecting a structure through the recycling of production waste.

In Fig.1 shows a plan map of the alluvium, in Fig. 2, 3, 4 are steps for forming a bun dam. Here 1 - parallel enclosing dams in the form of open sections, 2 - pulp discharge, 3 - inter-dam space, washed with ash and slag material, 4 - settling pond, 5 - spillway well in a settling pond, 4, 6 - clarified water collector, through which water is discharged, 7 - organic fine-grained material, dumped after washing the dams, 8 - load from the soil onto organic material 7.

An example of the method.

First, the enclosing dams 1 of coarse-grained organic material are arranged parallel to each other in the form of open sections located in the same plane or with a slope towards the rupture of the dam (Fig. 2).

The extent of open areas is determined by the length of the solid fraction from ash and slag pulp. The length of open sections of dams (Lo) is calculated by the formula for calculating the length of the clarification path:

cl

WITH

v | VI Yu W O

about

Lo

 2 N Wo

To Uo

where H is the depth of water at the spillway structure, m; Vo is the average pulp flow rate, m / s;

Uo is the percentage precipitation rate of the solid component of the ash pulp, m / s;

Claims (1)

K is the coefficient determined depending on the type of material of the dams, m. Then the ash and slag pulp is fed into the inter-damp space from the outlets 2 until it is filled with solid fraction (Fig. 3). After this, the washing into the inter-damp space 3 is stopped. From clarified pond 4, where clarified water is supplied from open sections of the enclosing dams 1, water is fed through a spillway 5 to the clarified water collector 6. Then, the blocking dams 2 are closed, the washing up is stopped and fine-grained organic material 7 is poured, which is then loaded with soil 8 (Fig. 4). After that, the alluvial structure is ready for operation and the pulp is fed to the alluvial map in the direction of the dams. SUMMARY OF THE INVENTION A method for constructing an embankment embankment dam Hd in low-strength soils, including map formation washing with enclosing dams, feeding pulp between the dams and layer-by-layer filling of material, characterized in that, in order to reduce the cost of construction constructions due to the secondary use of production waste, fencing dams are formed from organic coarse-grained material in the form of open sections located parallel to each other to a friend and at a distance equal to the width of the base of the embankment dam, and fill the space between the dams with a solid fraction to form a closed dam, then the lavage is stopped and dumped fine-grained material of organic origin, which is loaded with soil, then the pulp is fed towards the embankment dam, while the length of open sections of the enclosing dams are made equal to the length of the precipitation path of solid fractions from the washed pulp, b / S At Fie. / G7 Vk  ////// L Phase 2 7. / tttttt, Fig.Z FIG. 4