SU1441018A1 - Drying and moisturizing system - Google Patents

Abstract

The invention relates to land reclamation and can be used in areas with significant gradients. The purpose of the invention is to provide uniform subsoil moistening throughout the ameliorated area with a significant slope by creating the same pressure at the junction of closed drains with the collector. The system comprises drains 1 communicated with a collector 2 via a connection unit 3. The connection unit 3 is made in the form of a vertically installed pipe with a hermetically closed upper end and a flexible diaphragm. A flexible diaphragm blocks the outlet of the drain 1 to the collector 2. The supra-diaphragmatic cavities of the pipes are interconnected by pipeline 7. Pipeline 7 is connected to groundwater through a filter 8. Filter 8 is placed in the middle of the strip between channel 9 and drainage 1 located at the highest point of the ameliorated area at the depth of the drainage opening - 1. The lower end of the pipeline 7 is located at the lowest point of the site at the depth of the latter along the slope of the drain and is equipped with a valve J. The valve 10 is located in the well 11, which also has a valve 12 to block the outlet of the collector 2. At the upper and lower boundaries of the site are open channels 9, designed to drain water during drying and to supply water to the collectors 2 when wet. 3 il.

Description

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ABOUT

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The invention relates to land reclamation and can be used in areas with significant gradients.

The aim of the invention is to provide uniform subsoil moistening throughout the ameliorated area with a significant inclination by creating the same head at the junction of closed drains with the collector.

FIG. 1 shows a reclaimed area, a plan view; in fig. 2 - the same, a section along the collector; in fig. 3 - regulating device, cut.

The system comprises drains 1 communicated with a collector 2 via a connection unit 3. The joint unit 3 is made in the form of a vertically installed pipe 4 with a hermetically closed upper end and a flexible diaphragm 5 blocking the outlet of the drain 1 to the collector 2 (in an inoperative state). The over-diaphragm cavities 6 of the pipes 4 are interconnected by a pipeline 7 communicated with groundwater through a filter 8 placed in the middle of the strip between channel 9 and the drain located at the highest point of the reclaimed area at the depth of the drain, and the lower end of the pipeline 7 is located at the lowest point of the site at the depth of the last slope of the drain and is equipped with a valve 10 located in the well 11, which also has a valve 12 for blocking the exit of the collector 2. At the upper and lower borders of the site open channels 9, designed to drain water during drainage and water supply to the collectors 2 of the downstream area when wet.

The system works as follows.

In the drying mode, the valves 10 and 12 are open. Since the valve 10 is open, Supra-diaphragm cavities 6 regulating devices are emptied. The water filtered through the drains 1 bends the diaphragm 5 and enters the collector 2 (dashed arrows in Fig. 3), and from there, into the open channel 9, located at the lower boundary of the site, it is diverted outside the system. After the ground water level (GWL) has decreased to the drainage rate (average GWP 13), the valves 10 and 12 are closed. The system is switched to the subsoil moisture regime. For moistening, channel 9, located at the upper boundary of the site, is filled with water up to level H, water enters collector 2 and, by flexing flexible diaphragm 5, enters drains I (solid arrows in Fig. 3) and moisten the soil. At the same time, groundwater through the filter 8 and pipeline 7 fills the Supra-diaphragm cavities 6 of the regulating devices and exerts pressure on the diaphragm 5, which is equal to the height of the water column a -} - b. Pressure is transferred to the diaphragm from the manifold; equal to the height of the water column, since they act in opposite directions, the difference between them will be h - the same pressure at which water from the collector enters the drains. The same head / I ensures the same water flow from the collector to drains, regardless of the location of the drains.

With small slopes of the device can be installed on a group of drains.

Claims (1)

Invention Formula A dehumidification and wetting system, including closed drains, collectors, open channels and a drain connection with a collector, characterized in that, in order to evenly subsoil wetting throughout the ameliorated area with significant slopes by creating the same head in areas of drainage with a collector, The drain connection to the collector assembly is made in the form of a vertically installed pipe with a hermetically closed upper end and a flexible diaphragm blocking the drain outlet to the collector, while the diaphragm cavities are b interconnected by a pipeline, the upper end of which is connected to the groundwater by means of an m filter placed in the middle of the strip between the channel and the drain that occupies the highest position in the reclaimed area at the drainage depth, and the lower end of the pipeline is equipped with a valve placed in the lowest point plot at a depth below the last slope of the drain. 9 i I  J srig.1