SU1125327A1 - Method of making leakage-proof screen on canal and arrangement for effecting same (modifications) - Google Patents

Abstract

1. A method of creating an impervious screen on a channel, including laying a flexible perforated pipeline, distributing a solution along the slopes and bottom of the channel that reduces the water permeability of the soil followed by compaction and displacement of the pipeline in order, in order to reduce labor costs for the construction of the impervious screen and increase its operational reliability, the solution is distributed by layer-by-layer injection into the soil from separate injection chambers neous with the layer backfilling and compaction of soil from both sides of the flexible conduit, wherein the overpressure is maintained .; 2. A device for creating an anti-filtration screen on a channel, comprising a flexible perforated pipeline and an injection device for supplying a solution that reduces the water resistance of the soil, characterized in that the flexible pipeline is arranged with placed to reduce the labor costs for erecting the anti-filtration crane in its internal cavity, elastic injection chambers equipped with separate rigid brackets, the pipeline perforation along the lines ECTION inekI tional chambers which are connected to a delivery device. 3. A device for creating an anti-filtration screen on a channel, containing a flexible perforated pipeline and an injection device for supplying a solution that reduces the water resistance of the soil, characterized in that with elastic perforated injection chambers placed along the outer surface of the device connected to the injection device .

Description

The invention relates to hydraulic structures and can be used to create anti-filter screens both in the construction of canals and in their reconstruction.

A method of creating a filter screen is known, which includes the following operations: construction of the earth channel; loosening the soil of the slopes and diagonal by an earth-moving body in the form of a screw with simultaneous injection of a solution that reduces the permeability of the channel of the earth channel; consolidation of slopes and bottom of channel I.

The disadvantage of this method is the impossibility of injecting by the pillbox reducing the permeability of the channel of the earth channel (i.e., creating an anti-friction screen) at the same time as dumping and compacting the soil of the dams and the channel.

channel.

. ; . . ;

A device for constructing a progavofiltration screen is known, comprising a base machine with an earth-moving body made in the form of an auger having a hollow shaft (piping) with perforated walls connected to the supply pipe of the magnetic pump {).

However, this device does not provide for the creation of a protivofiltration screen at the same time as dumping and compaction of dams and channel slopes.

In addition, a back-up screen is required for a basic machine with a special earth-moving body for loosening the soil and temporarily inducing the bottom and slopes of the earth channel, which leads to an increase in the cost of work.

Nanbopee close to iso (Retenu by tehShgcheskoy essence and achieved rezultatu it is a method for producing nporosofiltratskoinogo screen on the channel vkl1ochayuschy gasket flexible perforirshv LES pipelines oestrus distribution RO ogkoevm and bottom solution channel snizhzyuifego soil permeability with posleduknpym egz seal and the moving pipe on the alignment 2 .

The disadvantages of the known method are 11activity of pacreopoMv soil reducing the watering of the ground channel of the earth channel (i.e. creating a protmofiltration screen) simultaneously with filling and compaction with the device ate the canal, as well as poor quality and short life of the FPA, as well as low quality and short combi-faction screen. the soil is made by self-penetration of the solution, which reduces the water permeability of the soil, and not under pressure.

The closest to the invention according to the technical solution is a device for creating an anti-friction screen on a channel, containing a flexible perforated pipeline and an injection device for feeding a solution that reduces the water permeability of the soil {2 |.

However, the known device does not provide a solution simultaneously with the application (filling and compaction of the soil of the dams and the channel of the channel, since the flexible pipeline has a continuous perforation, and not divided in riverine. Therefore, the solution of the bottom channel and slopes of the earth channel is possible only after the channel channel i.e., after the compaction of the channel bed soil, that the internet quality is reduced and the service life of the filter screen is reduced.

The purpose of the invention is to reduce labor costs for the erection of the anti-diffraction technology "(n: o the screen and increase its operational reliability).

To achieve the goal, according to the method of creating an anti-filter screen on a channel, including laying a nest cerfori-ary pipe, the distribution along the slopes and channel bottom of the solution reduces the water permeability of the soil followed (nm compaction and displacement of the pipeline from separate injecting cells at the same time with layer-by-layer dumping and compaction of soil on both sides of the flexible 1 pipeline, in which they support huts The exact pressure.

The stated goal , equipped with a section 1 now hard (workplace, nfaneM perforation pipe | gadfly, in Russian is divided into new cameras, which are connected to an injection device ..

This goal is achieved by the fact that, for a protruding screen on the channel (according to the second variant), the flexible pipeline was made located along the Rush) K) eip external overhead panel. perforated injection chambers, with “dnennenn” with injection system | 1LESS.

FIG. 1-3 shows the device according to the first embodiment for the previously performed; lagamy way; on fng. 4 - the same as

the second option; in fig. 5 and 6 - protnvofnltratsnony screen on the channel.

Example. A flexible perforated piping 1 is laid along the channel path. With the help of an injection device, the flexible piping is filled with working medium under excess pressure (Fig. 1). After that, the first layer of soil is poured from both sides of the flexible pipeline and, simultaneously with the compaction of the canal dams, layered by injecting the solution reduces the water permeability of the soil, which is fed into the first Russian elastic leakage chambers (Fig. 2). Then, the subsequent layers of soil are poured and, simultaneously with their hatching, they carry out an injected soil solution, which is fed by an injection device into elastic injection chambers.

2 subsequent Rus (Fig. 3 and 4) and so on. The injection chambers in the device in the first embodiment are placed inside the flexible pipeline (Fig. 1-3); and in the second, on the upper surface of the flexible pipe (Fig. 4).

After creating a protivofiltration screen 3 in the first section of the irrigation canal, the expansion pipeline I is emptied and moved along the alignment of the route — the technological sequence repeats.

For a regular flow rate of the solution, the permeability of the soil is reduced, when injecting and creating the optimum thickness of the protrusion screen.

3 elastic injection chambers 2, placed in the internal cavity of the pipeline 1, are provided with separate rigid brackets 4 (Fig. 3). Injection chambers 2 can be placed on the outer surface of the flexible pipeline (FNG 4), which also controls the pressure regulation of the injection chambers in depending on

the degree of compacted soil (clay, loam, peg, sand) is independent of the pressure in the flexible pipe 1.

As a result, we obtain a stable, with increased operational reliability, an anti-optical screen (grui-polymer, of the required thickness) on the irrigation channel of the cnn-wave outline (fng. 5 and 6).

The proposed method of creating counter-optical screens can be used in reconstructing the earth oro. rich channels. To do this, in places of supporting the pipeline, a channel is plowed through the soil loosening, then a flexible pipe 1 is laid along the channel channel. The pipeline is filled with working medium under overpressure with the help of an injection device, and then simultaneously with a partial filling of the flexible pipe with compaction layer-by-layer injection of the soil is carried out with a solution that reduces its water permeability, from the Russian located injections {| ion chambers 2. As a result, the irrigation channel is olineynogo with orotivofiltratszhzhnym contours of the screen (gruntopolimernym screen).

The proposed method will allow reducing costs, increasing the labor productivity of creating an anti-seepage screen and improving its operational reliability, since injection work, filling and sealing of channel dams and the channel bed are performed simultaneously.

In addition, the proposed method does not require additional special tools and mechanisms, which will also greatly reduce the cost of construction work.

The economic effect from the application of the invention will be 226 thousand rubles. in year.

Claims (3)

METHOD FOR CREATING AN ANTIFILTRATION SCREEN ON A CHANNEL AND A DEVICE FOR CREATING AN ANY-FILTER SCREEN ON A CHANNEL (ITS OPTIONS). (57) 1. A method of creating an anti-filtration screen on a channel, including laying a flexible perforated pipeline, distributing a solution along the slopes and the bottom of the channel that reduces the water permeability of the soil, followed by compaction and moving the pipeline along the alignment, characterized in that, in order to reduce the construction effort anti-filter screen and increase its operational reliability, the distribution of the solution is carried out by its layer-by-layer injection in the soil from separate injection chambers Belt with layer-by-layer filling and compaction of soil on both sides of a flexible pipeline in which excessive pressure is maintained. 2. A device for creating an anti-filter screen on the channel, containing a flexible perforated pipe and an injection device for supplying a solution that reduces the water resistance of the soil, characterized in that, in order to reduce labor costs for the construction of an anti-filter crane and increase its operational reliability, the flexible pipe is arranged with in its internal cavity, elastic injection chambers equipped with separate rigid brackets, and the perforation of the pipeline tiered section It is injected with chambers that are connected to a discharge device. 3. A device for creating an anti-filter screen on the channel, containing a flexible perforated pipe and an injection device for supplying a solution that reduces the water resistance of the soil, characterized in that, in order to reduce labor costs for the construction of the anti-filter screen and increase its operational reliability, the flexible pipe is arranged with a belt on its outer surface, elastic perforated injection chambers connected to a discharge device.