SU1393876A1 - Amelioration system - Google Patents

Abstract

The invention relates to land reclamation and can be used in draining heavy soils. The purpose of the invention is to increase the reliability and performance of mole drains. Above the mole drainage 4 meliorative system there is a prism 5 of loosened soil with a concave bottom. At the bottom of the prism 5, which is placed in the zone of probable collapse of the arch of the mole drain, a permeable screen 8 of synthetic material is laid. The screen 8 along the edges has a rough surface and covers the probable width of the collapse arch. Water from prism 5 of loosened soil is directed into slot 9 due to the concave bottom 6 and the presence of screen 9. Water drains into slot 9 from the lower point of the sagging screen 8. The ground immediately adjacent to slot 9 is exposed to water flow. With increasing width slit 9 this effect weakens and the destruction of the arch of the drain caused by the flow of water fades. 2 hp f-ly, 2 ill. i (I C 00 w co 00 sj O) 2

Description

The invention relates to the field of Agricultural land reclamation and can be used for draining F soils. ,

The purpose of the invention is to increase the reliability and efficiency of mole drains and increase the adhesion to the soil.

Figure 1 shows ameliorative (System, section; figure 2 shows mole drainage, cross section. I To drainage charge 1 with tubular pottery drainage 2, sprinkled with good filtering material 3, connection H mole mole drain A, above which (A prism of 5 unglaced soil was distributed by a concave bottom 6. A perpendicular shield 8, covering the spruce 9, formed by the vertical no-drim mixer nozzle, is placed in the zone 7 of the probable collapse of the worm's arch.

; The meliorative system works as follows ..

I Excessive water from the soil surface from the root layer is diverted to prism 5 of loosened soil and through screen 8 and slit 9 enters blood drain 4. From there water enters tubular pottery drain 2 through filtering material 3 backfilling tran- pei 1. Water from prism 5 of loosened Soil is directed to slot 9 due to the bent bottom shape 6 and the presence of a water permeable screen 8. Water drains out S slot 9 from the bottom point of the sagging screen 8, i.e. from the bottom forming the bottom prism of loosened t pyHTa. A stream of water is under pressure nt, directly adjoining the gap 9. When the width of the gap 9 increases, this effect weakens Water drops from the sagging part of the screen 8 into the cavity of the mole drain 4. The destruction of the arch of the mole drain 4, which is caused by the flow of water, fades.

However, the vault drainage is affected by machinery and the weight of the ground-lying soil. The cavity of the mole drain 4 is shifted upwards and reaches the screen 8. Its walls acquire an inception close to the foundation of a natural repose.

Claims (3)

1. The ameliorative system, including tubular horizontal drains and connected to them in the upper part and having a vertical water intake slot, mole drains, over each of which in the subsurface layer there is a prism of loosened soil, so as to increase the reliability of the mole’s drains, the prism of loosened soil above the mole drains is made with a concave bottom, On which, in the zone of probable collapse of the vault above the vertical water intake slot, a permeable screen is laid. 2. The system of claim 1, wherein, in order to increase the adhesion strength of the screen with the primer, it has a rough surface along the edges and overshadows the probable width of the collapse arch. , 3. The system according to claim 1, characterized in that the water-permeable screen is made of synthetic material, for example, polyethylene shell. . /