SU1390295A1 - Drainage system - Google Patents

Abstract

This invention relates to agriculture. The purpose of the invention is the uniform discharge of surface runoff and its distribution. The drainage system includes a continuous drain 1 laid horizontally on the ground, radial drains 2. The coils of the drain 1 in plan are connected to a collector 3 located in the geometric center of the system. The outer turn of the drain 1 is equipped with a dam 4 with a trench 5 filled with drainage material 6. Underground dam 4 is laid to a depth determined by the mechanical composition of the soil. The collector 3 is equipped with a vertical bore 7 with a pipe 8 for better absorption of the flow. To prevent silting up of water-absorbing soil, the pipe 8 is equipped with a filter 9. The continuous form of the drain 1 provides a uniform height discharge of groundwater and thus creates optimal conditions for the development of plants. 3 il. with S (L

Description

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The invention relates to agriculture, in particular to drainage systems for sloping lands.

The purpose of the invention is the uniform discharge of surface runoff and its distribution.

Fig, 1 shows a system, front view, section; Fig 2 is the same, top view; FIG. 3 is an example of the placement of the Q system.

The system includes a continuous drain 1 laid horizontally, radial drains 2, by means of which the drain coils 1 in plan are connected to a collector 3 located in the geometric center of the system s. The outer turn of the drain 1 is equipped with an underground dam 4 with a trench 5 filled with drainage material 6. 20 The underground dam 4 is laid to a depth determined by the mechanical composition of the soil, 70-100 cm. The collector 3 has a vertical well 7 for better absorption of the flow. 8, To prevent silting up of the water-absorbing soil (sand, gravel, limestone), the pipe 8 is provided with a filter 9.

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The drainage system is laid as follows.

At the outer turn, the drains 1 form a trench 5 with an underground dam 4. At the same time, the height of the underground dam 4 is laid along the contour of the flooded hollow, t, n, horizontally, and trench 5 - at an angle of 0.5-3.0 to the horizontal. This ensures the flow of water along the trench and maintaining the same level of groundwater recharge around the underground dam 4. Trench 5 prevents flooding of the basin from the surface runoff flowing into it, and underground dam 4 prevents drainage of the area located above trench 5, the underground dam 4 is laid to a depth that provides an optimal level of groundwater in the zone lying above trench 5, and at the same time it does not allow flooding of the depression by groundwater lying above trench 5, The following coils of continuous drainage are placed at the same angle as the trench 5, and connected to a pipe placed in the well 7.

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In the example of the laying of the drainage system in natural conditions (Fig. 3), the contours of the basin are visible by the nature of the contour lines on a specific area. The distance between the turns of continuous drainage is determined by the mechanical composition of the soil and the steepness of the slopes. The heavier the soil texture and the greater the steepness of the slopes, the smaller the distance between the turns of the continuous drain.

Radial drains 2 are installed in the intersection zone of thalwegs of the hollows with trench 5, in the flooded area they are laid at the same depth, continuous drain 1, and near the trench they are raised and connected to the latter in the middle of its height,

The drainage system works in a DUUP5 IM manner.

The surface runoff formed on the slopes lying above the flooded depression, due to snow or rainfall, intercepts trench 5, drain I, and groundwater dam 4 does not allow seeping down the slope of the groundwater 4, draining into surface trench 5. material 6 cleans it from oozy particles. After that, the purified water flows down the inner coils of the drain 1 along the bottom of the trench 5, and from it through the collector 3 after repeated cleaning by the filter 9 is discharged into the pipe 8 of the bore 7, In the case of an intensive flow of water into the trench 5, it is emergency radial drains 2.

Claims (1)

Invention Formula The drainage system is mainly for sloping lands, including a collector and drains with a common geometric center, characterized in that, in order to evenly discharge surface runoff and its distribution, the drainage system is designed as a continuous drain laid horizontally across the terrain, while the system is equipped with a drain - a grabbing trench filled with drainage material and a drain located along the outer coil, and radial drains connected to the trench. Cuttmum Ritz Eremo roftUJOHHia emram6 9 mv Razialm / nronin Fi.3