SU1500717A1 - Method of hydraulic deposition of earth structure - Google Patents

Description

The invention relates to hydraulic construction. purpose

2

inventions - reducing the material consumption of the structure by reducing the volume of embankment dams and improving the quality of the prism. A pipe 2 is laid on the raised embankment dam 1 with slit pulp outlets 3 on supports 4. The pulp is produced in a vertical direction, then at various angles to the vertical, resulting in alluvial layers 5. On the washed surface, ridges 6 are formed parallel to the embankment 1.

After the outer slope 8 has reached the upper base of the dam, the embankment of the first layer, and later on the top 7 of the ridge of the previous layer, you

start pulp stop and start /

its at a large angle to the vertical.

2 Il. WITH

figure 1

3

four

150071

The invention relates to hydraulic construction, in particular dams, dams, water dumps, tailings, etc. from sandy and granular granular soils containing sand or gravel fractions.

The purpose of the invention is the reduction of the material of the structure due to

reduce the volumes of embankment dams and improve the quality of the resistant prism.

Figure 1 shows the peripheral part of the alluvial structure, a vertical section, in figure 2 - a portion 15 of the alluvium, top view.

The method is as follows.

They arrange the embankment dam 1, lay the pipe 2 with slit pulp-20 overflows 3 on the supports 4. Then produce the pulp production, first in the vertical direction and later at different angles to the vertical, resulting in 25 alluvial layers 5.

In places of pulp effusion on the washed surface, ridges 6 are formed parallel to the embankment dam 1 due to the deposition of the largest 30 fractions of the washed soil. The tops of the 7 ridges 6 are the highest points of the precoat layer. When the outer slope 8 of the overlying ridge reaches the upper base of the embankment dam ^ 5 of the first layer, and subsequently the tops of the 7 ridge of the previous layer, the pulp production is stopped and started again at a greater angle to the vertical. 40

As a result of successive changes in the angle of pulp production, a tier 9 is formed, consisting of several layers 5, with the embankment dam being built only for the first layer, i.e. its height is significantly less than the height of the tier. For the remaining layers

tiers as the embankment of the embankment serve the washed ridges of the previous layers, which together form the external slope of the structure 10. The pulp is produced from the slit pulp outlets 3 located in the end pipe.

To change the angle of production of the pulp, the pipe is turned around its longitudinal axis at a certain angle, which is determined by calculation or graphically depending on the height of the tier, the flight distance of the jet, the height of the washed crest, the angle of the external slope of the structure, the layer thickness.

Claims (1)

Claim The method of washing the soil structure, including the release of pulp from holes in the pipeline, located on supports above the surface of the alluvium, along the external contours of the structure, the device of embankment dams on each tier, which is aimed at reducing the material consumption of the structure by reducing the volumes of embankment embankments and improve the quality of the stop prism, release the pulp first down in the vertical direction, continuing it until the period when the washed soil reaches the level of the embankment dam crest, then the pulp directed at an angle to the vertical, inwardly namyvaet structures in the limit by increasing the angle to a value corresponding to a maximum flight range of pulp jets from the pulp line, wherein each subsequent iz ¹ Menenius release angle upon reaching the pulp produced namyvaet ground mark the crest formed in the previous layer, in the place of pulp effusion on the washed surface. 1500717