System for differential control of ground water level

FIELD: construction.

SUBSTANCE: system includes supply drain lines 1, manifold 2, and storage well 3, in which siphon block 7 is mounted. The system is provided with self-regulating mechanism 4 of ground water level installed in well 3 and consisting of float chamber 6 rigidly fixed in the upper position above the ridge of siphon block 7 and connected by means of a rigid float drive through valve 8 with a blind section of pipe 13 on a descending branch of siphon block 7. The descending branch of siphon block 7 is connected to discharge pipe 14. Float chamber 6 is connected via hydraulic channel 12 to well 3. The lower part of well 3 is sealed, and above discharge pipe 14 it has outlet opening 15 with branch pipe 17, which is shut off with a level control by means of an additional float drive for control of gate 16. Float gate 16 has L-shaped lever 19 with flange 20, on which float 18 and horizontal plate 23 is fixed. Branch pipe 17 is connected to storage well 3 below the ridge of siphon block 7 by value Δh providing maximum design water filling of well 3 with further discharge to discharge pipe 14. Value Δh is calculated by the following formula: Δh=h1-h2. The self-regulating mechanism is connected to hydraulic channel 12 and well 3 as per a principle of communicating vessels. When the level of the ridge of siphon block 7 is achieved, a charging device is actuated and water discharge through siphon block 7 is performed in a pressure mode to the level of the inlet opening of its ascending branch. The level control in well 3 is actuated when maximum water level achieves the fixed restraining bracket 21, and opening of opening 15 with gate 16 is performed.

EFFECT: use of the invention will allow automating of a ground water level control process and maintaining correct soil humidity balance; automatic flushing of the well with pressure water flow.

2 cl, 1 dwg

 

The invention is intended for the implementation of new management practices in the regulation of the water regime for irrigation systems that allows to differentially control the groundwater level in the bilge-humidifier reclamation arrays.

A well-known regulator of the groundwater level, containing mounted on the tip drains are placed in the well, a stop valve with float actuator, it is provided with a tubular filter and located in the well chamber, the actuator of the locking device in the form of two pivotally connected with independently moving floats, one of which is placed in the chamber communicating through the tubular filter with groundwater above the regulator (inventor's certificate SU # 763519, CL. EV 11/00,1980).

The disadvantages of the regulator of the groundwater level is the fact that it cannot provide a constant discharge of water flow over the entire range of regulation under conditions of increased drainage when changing hydrological conditions, when the water flow is increased to the maximum values exceeding the throughput of the outlet pipe, for example, after prolonged rains, flooding areas. In addition, is rather time-consuming process of tracking the calculated groundwater levels and the inability of self-regulation. When it� the device is difficult to manufacture, siltation and sakrivanje gauge tubular filter is not provided with sufficient accuracy to maintain specified pressures in the well and may not work in all range of regulation of drainage water depending on fluctuations in water level in the drainage system. Furthermore, the design of the movable cylinder Poppet valve interconnected to move relative to each other in welded housing complex in operation and leads to significant efforts to overcome the hydrostatic pressure in the weld body, acting on the entire area of the gate when it is opened. These efforts reduce the reliability of operation of the device, and hence the reliability of its operation. On vertical rod due to friction of the rack there is no possibility to control the system to complete the trim lever of the device in two opposite directions, which leads to the randomness of the selection of its provisions.

Known vacuum drainage system that contains the outlet and inlet drains, storage tank communicating with the outlet drains through a siphon, it is provided with an observation well, in which is mounted a siphon, and a holding tank connected with the connecting tube well with float valve, placed in the well, and having poured�Oh pipe with non-return valve, the siphon is associated with float valve, flexible hose has a hole and located inside the float, overlapping the hole (inventor's certificate SU # 1381241, CL. EV 11/00, 1981).

The disadvantage of this system is that the structure containing a float connected with the valve and mounted on a rack with possibility of movement, does not possess sufficient sensitivity, which is related to the great friction of the float at the front in case of misalignment when the water pressure at the plane of the shutter at the fleeting change of water level in a storage tank, it is connected with the friction face. In addition, does not allow to reach large actuating force when a relatively small level in the well, designed to work only on the siphon, the bandwidth of which is limited by the hole, shutting off the float. These shortcomings reduce the reliability of operation of the device, and hence the reliability of operation, and the complexity of the design.

The objective of this decision is to increase the reliability of the regulation of ground water level in the bilge-humidifier systems in automatic mode.

The technical result is achieved in that the system of differential regulation of ground water level, including the inlet drains, inspection pit, in which is mounted with�background float valve, placed in the well, and a check valve, is provided mounted on the descending branch of the siphon self-regulating mechanism of the groundwater level, and self-regulating mechanism accommodated in the float chamber, which is connected by means of a rigid float-operated valve with a hollow portion of the pipe on the descending branch of the siphon, connected to the outlet pipe, while the camera is connected hydraulically to the structure in which the bottom is sealed, and above the outlet pipe has an outlet nozzle, shutting off level control float through additional actuator to control the shutter, in addition, the float which is freely suspended on the t-shaped lever with the possibility of adjunction his shelf to the bracket-the limiter is mounted in the upper part of the walls of the well, and the free end of the l-shaped lever has a rod attached to a horizontal plate.

In addition, the bracket-limiter is made not lower than the bottom of the float chamber, and the outlet connected to the well below the crest of the siphon on the magnitude of Δh, defined by the formula: Δh=h1-h2where h1- the depth of the water from the outlet to the bracket-stopper; h2- water depth from the crest of the siphon to the mounting bracket-limiter.

Proposed�may differentiable system of regulation of groundwater level aims to eliminate these drawbacks by design, which allows the variation of differential marks of holes in the ascending and descending branches of the siphon allows you to cease the dumping of water before its consumption reduced to a minimum, a threat to the overflow of the well. This is due in the event of a change in hydrological conditions of drainage, when the water flow is increased to the maximum values greater than the bandwidth of the siphon, especially after prolonged rains flooded areas. The process of accumulation and discharge of the well will continue until, until, the water discharge through the open hole with a socket in the wall of the well and while at the same time, the siphon will not take the water outlet in the blind tube, which is controlled by a float operated valve and a float rigidly connected with the rod is determined by the height Δh. When the intervals between the discharges is controlled by varying the bandwidth of siphon holes in the wall of the well. The positive factor of the horizontal plate mounted on the free end shelf l-shaped lever (rod) to the float. Moving horizontal plate with a float height of filling of water in the well water smooths the surface, indignant when entering the water from the drains. Resulting in a gradual opening of the shutter, W�fortified to G-shaped float arm on the free end of the flange in automatic mode on the discharge of water.

Comparative analysis of proposed technical solutions and prototype shows that the inventive combination of features part of essential features is new, therefore, the claimed solution meets the criterion of "novelty."

The system of differential regulation of ground water level is illustrated by a drawing material.

The drawing shows a system, longitudinal section.

The system of differential regulation of groundwater level includes drains 1, reservoir 2, the cumulative pit 3, which has a self-regulating mechanism 4 groundwater level 5, consisting of the float chamber 6, is rigidly fixed in the upper position, above the siphon 7. The siphon 7 has a charger in the form of an installed valve 8 connected to a rigid rod 9 to the float 10 to be secured to deadlift 9 installation bolt 11 in the float chamber 6 to change the setting of the self-regulating mechanism 4. Float chamber 6 are connected to the structure 3 by a hydraulic channel on the principle of communicating vessels. The size of the hydraulic channel 12 (holes) is calculated from the time of filling or emptying of the chamber 6. The charger consists of a valve 8 is placed over a hollow area of the tube 13, which is connected with the descending branch of the siphon 7. Descending branch of the siphon 7 is connected with the outlet Tr�fight 14. The system has in the lower part of the well 3 outlet 15, is equipped with a shutter 16 with waste pipe 17 and complete overlap of the openings in the automatic mode. Float shutter actuator 16, composed of a float 18, is pivotally connected to an l-shaped lever 19, with the possibility of adjunction his shelf 20 to the locking mechanism, made in the form of a rigidly mounted bracket-limiter 21 to the wall of the well 3 above the bottom of the float chamber 6. In addition, the l-shaped lever 19 (rod), approximately in the middle part has an additional lever 22, pivotally connected with a side wall of the well 3, and the free end of the shelf 20 is provided with a horizontal plate 23 and may be much closer to the body of the float chamber 6. Horizontal plate 23 serves for the elimination of excitement on the water surface and the influence of turbulent flow on the float 18 when moving it vertically in the well 3.

The location of the bottom of the float chamber 6, which is rigidly secured to the wall of the well 3 above descending branch of the siphon 7 by the amount Δh, defined by the formula: Δh=h1-h2where h1- the depth of the water from the output pipe to bracket; h2- water depth from the crest of the siphon to the mounting bracket.

Thus, self-regulating mechanism 4 in the float chamber 6 is separated from the influence of the water level in the well 3 that dismantle�range the influence of the turbulent flow of water, flowing through the collector 2, and the float 18 with an l-shaped lever 19.

The operation of the system of differential regulation of ground water level shown in the drawing.

In dry mode, charging the siphon 7 begins with the opening of the charging device in the form of a valve 8 on the blank tube 13 and extends through the descending branch of the siphon 7 is connected to the outlet pipe 14. Collector 2 set the water level, preventing the lowering of groundwater levels, which transfers the system of differential regulation of ground water level in humidifier mode. Upon reaching the crest of the siphon 7 is triggered charger (lifting force of the float 10 through the rod 9 lifts the valve 8 and opens the access of water into the downward branch of the siphon 7). With a sharp increase in the inflow of drainage water into the well 3 is filled with water until such time as the float 18 will not rise, and the chamber 6 is filled with water through the hydraulic passage 12 connected to the structure 3, and the system of differential regulation of ground water level goes to maximum release of water from the well 3 due to opening of the valve 16 to the float 18 and a horizontal plate 23 to the upper position before pressing to the bracket-limiter 21 of the shelf 20 l-shaped lever 19. Excess water exits through the discharge pipe 17 in �tadawul pipe 14. The lowering of the water level in the well 3, and hence in the float chamber 6. Chamber 6 is emptied before the water level to the crest of the siphon 7 under its own weight of the float 10 with a rigid rod 9, the valve 8 closes the solid pipe 13.

At the end of the reset cycle of the excess water regulation in automatic mode, the level in the reservoir 2 and pit 3 is lowered to restore the required level, which eliminates excess water in the drainage system. The decrease of water in the well comes up to the mark on the value of Δh between the crest of the siphon 7 and bracket-clamp 21. Specifies the parameter groundwater levels in the drains 1 is determined by the technological requirements of agricultural production. When the level of groundwater regulatory process is repeated.

Thus, the variation of the differential elevations of the openings of the upward and downward branches of the siphon 7, and given the operation of the shutter 16, allows you to cease the dumping of water before its consumption will decrease to minimum values, which remains in the reservoir 2 for possible soil moisture drains through 1 above the required distance from buildings, the system will accumulate water in the well, and the excess is discharged into the outlet pipe.

Application of the system allows to use the proposed design of the facilities, primarily on systems vertical �of renage (dewatering) with siphon spillway mode of diversion of excess water which is characterized by a gradual decrease costs during the growing period with a maximum flow during floods, for example, after prolonged rains, flooding the property.

The execution of the shutter 16, the float 18 and the horizontal plate 23 on the t-shaped lever 19 to increase the reliability of the self-regulating mechanism 4 in the float chamber 6 during the joint operation of the siphon 7, placed in the well 3, as the siphon operates in a predetermined mode generated by opening and closing its branches downward.

The use of this system, which includes the proposed construction, allows you to create a self-regulating system of wastewater with high speed from the reservoir into the well, which also allows for ecolotree space, increasing the flow to drains and speeding up the opportunity, the process of draining topsoil is samopomich the bottom of the well discharge water current.

The simplicity of construction of the proposed drainage systems and low cost of its constituent parts allows you to use the system with sufficient high accuracy of stabilization of water levels in drainage wells and automatic opening of the float valve, when in the well a sufficient amount of level difference and supported pryvilnyansk moisture in the soil.

1. The system of differential regulation of ground water level, including the inlet drains, inspection pit, in which is mounted siphon float valve, placed in the well, and a check valve, characterized in that it is provided mounted on the descending branch of the siphon self-regulating mechanism of the groundwater level, and self-regulating mechanism accommodated in the float chamber, which is connected by means of a rigid float-operated valve with a hollow portion of the pipe on the descending branch of the siphon, connected to the outlet pipe, while the camera is connected hydraulically to the structure in which the lower part is made waterproof and above the outlet pipe has an outlet nozzle, shutting off level control float through additional actuator to control the shutter, in addition, the float of which is freely suspended on the t-shaped lever with the possibility of adjunction his shelf to the bracket-the limiter is mounted in the upper part of the walls of the well, and the free end of the l-shaped lever has a rod attached to a horizontal plate.

2. A system according to claim 1, characterized in that the bracket-limiter is made not lower than the bottom of the float chamber, and the outlet connected to the well below the crest of the siphon on the magnitude of Δh, defined by p� the formula
Δh=h1-h2
where h1- the depth of the water from the outlet to the bracket-limiter;
h2- water depth from the crest of the siphon to the mounting bracket-limiter.



 

Same patents:

FIELD: agriculture.

SUBSTANCE: in the drain well 1 a chamber 11 is located, communicated with the outlet orifices 12 and 25, and a container 13. In the chamber 11 a float articulation linkage is placed, the rod 18 of which is passed through the orifice 12 into the container 13, in which the cone valve 14 with the load 15 is placed. The container 13 through the pipeline 16 is connected to the outlet drain 4. The bottom of the chamber 11 is communicated with the drain well 1 by the inlet opening 17 and is made in the form of a valve 23 and a float sensor 22 interconnected with the rod with the ability of axial displacement. The inlet opening 17 of the float sensor 22 is formed with projections-limiters 24 with windows. The housing 10 of the shut-off device has a recess in which a pipe 26 with a spring 27 with a screw 28 is placed. The spring 27 is placed in the cavity of the flexible sleeve 29, which serves as protection from clogging with debris and deposits. The sensing element in the form of a spring 27 supports the valve 3 in opening and closing the opening 9 in the seat of the housing 10, which eliminates the shock loading of the valve on the seat in the housing 10. Closing the opening of the shut-off device is carried out only after emptying of the float chamber. As a result of this the work of the float drive is balanced by moments of forces from the minimum to the maximum water level in the well 1.

EFFECT: improved reliability of the device, improved accuracy of regulation and enhanced range of technical means for regulation of the water level in the closed drainage systems.

3 cl, 1 dwg

FIELD: agriculture.

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Drain regulator // 2528210

FIELD: construction.

SUBSTANCE: regulator comprises a body 1, made in the form of a nozzle of rectangular cross section, into the ends of which drainage pipes 2 are inserted into the ends of which at both sides. Inside the body 1 on the horizontal axis of rotation 4 there is a valve 3 installed. The valve 3 is made in the form of a cover 7 equipped with a large float 8 with a canopy 9. The body 1 is equipped with a cross rod with a roller 11, via which a flexible thread 10 is thrown, which connects the valve 3 with a bottom lower gate 12. The gate 12 is balanced additionally with a float of smaller size 14, rigidly connected with the lower part of the gate at the side of the supply drain. Side walls of the body 1 have cantilever longitudinal stops-limiters 5 and inclined stops-limiters 6 at the angle 30…45°, between which there is the valve 3, the large float 8 and canopy 9. In the initial position the valve 3 with the large float 8 and the canopy 9 lie on stops-limiters 5 in the horizontal position, and the lower bottom gate 12 is closed due to its retention in the vertical position via a flexible thread 10.

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2 cl, 2 dwg

FIELD: construction.

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FIELD: oil and gas industry.

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FIELD: construction.

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Water lift unit // 2318956

FIELD: irrigation systems, particularly ones to be used with opened water streams using energy source, for instance hydraulic level drop at retaining structures.

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EFFECT: possibility to create pressure difference enough for water lifting along with possibility to retain desirable structure throughput.

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FIELD: hydraulic engineering, particularly means to close water-discharge weir or dam orifices and to regulate water level in water storage pond.

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FIELD: agriculture.

SUBSTANCE: method consists in creating a closed water area in the form of a storage pond 8 with the area of accumulation of sludge from liquid flows. The storage pond 8 is a water area with a levee 12, in which body the inlet water intake hole is made, and the opposite - a water receiver 9 of the water intake pipeline 22. According to the first embodiment of the method, at the bottom of the storage pond 8 the closed air-injecting devices 14, 15 are mounted to form a number of beams diverging from the device as horizontal perforated pipelines 16 in the direction of the base of the upper slope of the dam 12. The perforated pipelines 16 end with a dead end. The air-injecting devices 14, 15 are connected to the central supply pipeline 17, 18 connected to a source of compressed air. With the increase in the accumulation of sediment in the form of sludge in the zones of the storage pond 8 the air supply in portions into the air-injecting devices 14, 15 is resumed with brief connection of the compressor 19 on the command of the time relay 20 on the air duct in the intake pipeline of the closed air-injecting device. Breaking through the holes of the perforated pipeline 16, the compressed air loosens and roils the sludge, with simultaneous saturation of manure flow with it, and transports it to the discharge water intake pipeline 22. As the reduction in the sludge layer in the storage pond 8 the air supply into the air-injecting devices 14, 15 is stopped. According to the second embodiment of the method, in the storage pond a floating platform is placed, on which a compressor is located, connected to the pressure hose air duct. The nozzle of the pressure hose air duct is made in the form of a metal trunk with a perforation in its end part, attached to the rod with graduations in height and in the section of sludge residual accumulation, the end of which is inserted into the precipitate formation. The floating platform is attached on both sides of the dam using a rope and block system in the areas of erosion of the sediment of sludge precipitation.

EFFECT: increased efficiency of transport capacity of roiled manure flow coming from the livestock complex, and increased in functional capabilities of the storage pond with possible disposal of flows on irrigated fields of reclamation.

2 cl, 6 dwg

FIELD: agriculture.

SUBSTANCE: method comprises treatment of soil with simultaneous formation of soil ridges. After summer deep tillage before planting herbs the levelling and compacting is carried out in a single pass with smooth water-filled rollers. Planting is carried out with a mixture of stand of grass growing naturally on sod-podzol sandy loam soils with band stripes. Overseeding of tall-stem cultivated crop of corn is carried out with simultaneous formation of the ridges between the bands, and inter-row processing is not carried out. The tall-stem cultivated crop of corn, which has not reached its complete ripeness, is left for winter. The harvesting is carried out on the second year in spring before the vegetation of grass with grinding and removal of the stems with leaves from the field for dry feed with the subsequent feed additive. In addition, overseeding grass between the band stripes is carried out into mechanically damaged ridges, and top dressing of grass is carried out, which is harvested during the complete vegetation season. The distance between the stripes is taken as 20-25 m, and the row spacing of corn is 70 cm.

EFFECT: creation of an optimal snow cover which protects plants from freezing, and the accumulation of moisture in the spring period for plant development.

2 cl

Drainage system // 2547406

FIELD: agriculture.

SUBSTANCE: drainage system comprises a collector 1 connected with the drains 2 entering into it, vertical tubes 3 and a device for flushing of sediments. The device for flushing is made of perforated pipes 4 in the form of air outlets 7 arranged inside the drains 2 attached to the upper part of the pipes above the bottom. The perforated pipe 4 by the metal barrel 6, placed in the tube 3 is connected to the pressure hose 8, which inlet is connected to the discharge pipe 9 with the valve 10 of the receiver 11. The receiver 11 is connected to the compressor 12 generating the compressed air. The compressor 12 is connected to the timing relay. The invention increases the transporting capacity of disturbance sediments and other compounds in the drain cavity and accelerates their removal into the open channel 17.

EFFECT: increased efficiency of flushing and increased drainage term by air exposure to sediments.

2 cl, 2 dwg

FIELD: agriculture.

SUBSTANCE: in the drain well 1 a chamber 11 is located, communicated with the outlet orifices 12 and 25, and a container 13. In the chamber 11 a float articulation linkage is placed, the rod 18 of which is passed through the orifice 12 into the container 13, in which the cone valve 14 with the load 15 is placed. The container 13 through the pipeline 16 is connected to the outlet drain 4. The bottom of the chamber 11 is communicated with the drain well 1 by the inlet opening 17 and is made in the form of a valve 23 and a float sensor 22 interconnected with the rod with the ability of axial displacement. The inlet opening 17 of the float sensor 22 is formed with projections-limiters 24 with windows. The housing 10 of the shut-off device has a recess in which a pipe 26 with a spring 27 with a screw 28 is placed. The spring 27 is placed in the cavity of the flexible sleeve 29, which serves as protection from clogging with debris and deposits. The sensing element in the form of a spring 27 supports the valve 3 in opening and closing the opening 9 in the seat of the housing 10, which eliminates the shock loading of the valve on the seat in the housing 10. Closing the opening of the shut-off device is carried out only after emptying of the float chamber. As a result of this the work of the float drive is balanced by moments of forces from the minimum to the maximum water level in the well 1.

EFFECT: improved reliability of the device, improved accuracy of regulation and enhanced range of technical means for regulation of the water level in the closed drainage systems.

3 cl, 1 dwg

FIELD: construction.

SUBSTANCE: body of a water-diversion ditch comprises two substantially identically formed surface blocks, namely: a bottom block and a substantially identically formed cover block, which with the help of spacing elements are connected to each other at the mounting distance. Surface blocks are proposed to be made substantially as capable of engagement when laid into stacks, so that the mounting distance of the surface blocks is considerably more than their distance when laid into a stack. Spacing elements are substantially shaped in the form of a truncated cone or a truncated pyramid, with a limited surface of the cross section, which with increased distance from the surface blocks becomes less. The first alternative version may include placement of the spacing elements on the surface units so that bottom blocks and bottom covers are laid as overlapping each other according to the type of stonework tying. The second alternative version may provide for overlapping connection of the bottom blocks and the cover blocks to each other according to the type of stonework tying.

EFFECT: high stability simultaneously with the possibility to save area during storing and transportation.

14 cl, 23 dwg

FIELD: agriculture.

SUBSTANCE: method comprises twisting the device for drain formation in the ground or soil to the desired depth. The device consists of dual hollow tubes. The outer tube has uniformly spaced protrusions of constant rectangular section rigidly fixed on the lateral cylindrical surface along the helical line with a constant pitch. After reaching the desired depth by the device, the inner tube together with the cohesive soil is removed from the outer tube to form a hollow space. The soil is removed from the inner tube. Then the inner tube is wrapped with anti-suffusion material and placed back into the hollow space of the outer tube. Then filter material is poured. The dual outer and inner tubes as filled with the filter material are twisted using a handle.

EFFECT: increased efficiency and productivity in the construction of vertical drains in cohesive soils.

4 cl, 7 dwg

FIELD: construction.

SUBSTANCE: method for horizontal draining of waterlogged structures on pile foundations relates to construction, namely to the construction of drainage systems for the protection of structures on pile foundations against ground water logging. As per the proposed method, dewatering of a waterlogged object is achieved due to the fact that from one radial drain well developed along the outer wall outside the structure normally to rows of the load-carrying piles and equipped with a filter there passed are additional side drain wells between the rows of piles. Drilling of additional shafts is performed by means of a downhole motor and diverting devices out of the above said radial well. The steadiness of walls of the additional wells at drilling is provided by the application of hydrolysed polyacrylonitrile or other self-decomposed drill fluids. After driving of the side additional shafts is completed, the drill tool is disconnected and used for the shutoff of the well bottom, and the motor together with drill pipes is removed through a filter pipe that was drawn by means of the downhole motor.

EFFECT: proposed drainage system allows solving a problem of protection against waterlogging of structures on pile foundations.

2 dwg

FIELD: agriculture.

SUBSTANCE: mouth of the drain manifold comprises a shut-off valve 32 with the float drive 23 and the rod 31 mounted on the drain headwall, located in the drainage well 16. The mouth of the drain manifold comprises a plug-ended pipe 1 and is equipped with two chambers 10 and 11. The lower chamber 10 is connected to the upper chamber 11. The chambers 10, 11 through the inlet openings 12, 13 with the pipes 14, 15 are connected through the side wall 16 of the well mounted in the channel 17, and constitute a hydraulic switch, in which the water levels are recorded by the flap valves 19, 20. The upper chamber 11 is connected with a water-filled container 27 with a float 23 connected by the hinged-lever drive with a valve 19 and rigidly through the rod 31 with the shut-off valve 32. The lower chamber 10 is connected through the check valve 7 with the gate 6 with the drain tube 5 connected to the Venturi tube 4 of the drain 3. The outlet opening 18 at the bottom of the chamber 11 is provided with a flat flap valve 19, and the tube 14 - with the flap valve 20. The flap valve 20 through the hinges with the rod 21 is connected with the flap valve 19 which is connected by the hinged-lever drive through the fixed hinge 22 with a float 23. The water-filled container 27 with a calibrated water outlet opening 33 has a float movement limiter made in the form of the level retainers 24.

EFFECT: reliability of operation in transient conditions, depending on the position of water level in the channel is provided by the presence of hydraulic relay consisting of two chambers, interconnected by the valves, and the container, in particular the calibrated opening in it, calculated from the condition that the water level in the retainer of closing of the shut-off device is slower.

3 cl, 1 dwg

FIELD: construction.

SUBSTANCE: previously they make a horizontal circular drainage 1 with a tubular drain having gravel fill and wrapped in geotextile. Then a bed drain 3 is arranged under the bottom of the basement with filtering fill from crushed stone. A sink 4 is equipped with fill from coarse-grained sand. Walls 6 and the bottom 7 of the basement are hydraulically insulated. Piles 8 are driven, and a groove-and-tongue wall 9 is arranged. Perpendicularly to the horizontal drains 1 tightly to the groove-and-tongue wall 9 at the rated distance they arrange vertical perforated plastic pipes 2. Vertical collectors 2 are wrapped by a protective filtering material and are combined into a single system. For quick reduction of ground water level they apply forced pumping of water by a pump 10 from vertical collectors 2 with its further discharge into the horizontal circular drainage 1.

EFFECT: increased efficiency of drainage operation.

2 cl, 1 dwg

FIELD: agriculture.

SUBSTANCE: drainage-humidification system comprises a supply 1 and a discharge 2 closed irrigation pipelines interconnected with water distribution executive unit. The water distribution executive unit consists of a vertical pipe 3 mounted on the supply pipeline 1 and the working chamber 4 of pressure with separation from it by the membrane 5 with the rod 6. The water distribution executive unit, the valve gear 19, the container 24 with the float 23, and the rotary valve 44 with the control pipeline are located in series. The cavity 11 of the chamber 4 is connected via the hydraulic pipeline 64 provided with a valve 65, with the switch 27, the shank of which is fixed pivotally with one end of the lever 50 to the rod 22. Movement of the upper lever 50 is limited by the upper stop 58, and the lower lever 51 - by the lower stop 59 above and below the threshold level in the storage container 24. The valve gear 19 is made in the form of a cylinder and has a double piston 20 which is pivotally coupled to the rod 22 of the float actuator. The valve gear 19 is connected to the supply irrigation pipeline 1 through the control pipeline 34 to the valve 35 and is respectively connected to the manifold 42 with drains-humidifiers 43. The storage container 24 with a siphon 28 communicates through the rotary valve 44 to the control pipelines 31, 34, respectively, with valves 32, 35 and with the supply pipeline 1.

EFFECT: system enables to create closed automated systems in land reclamation, to save water resources, to obtain the necessary productivity of agricultural products with the effective use of land.

6 cl, 3 dwg

FIELD: hydraulic structures, particularly to consolidate slopes or inclinations to be eroded by ground waters.

SUBSTANCE: method for slope protection against landslide by diverting ground water with the use of drainage mine tunnel, through filters and upward dewatering wells involves excavating mine tunnel beginning from lower point of original ground under water-bearing horizons with tunnel elevation for water gravity flow, wherein mine tunnel extends parallel to direction of water flow from water-bearing horizons; excavating mine tunnel in different directions perpendicular to above flow direction; performing drilling vertical venting wells at tunnel ends beginning from original ground; drilling upward dewatering wells in water-bearing horizons; drilling vertical wells from original ground used as through filters crossing all water-bearing horizons; connecting thereof with cross-headings excavated from mine tunnel; installing valves at through filter ends; providing filtering members at place of intersection between upward dewatering wells and vertical wells with water-bearing horizons; forming water removal channel in mine tunnel and connecting thereof with original ground; drilling hydraulic observing wells beginning from original ground along line of through filters to control water level in water-bearing horizons.

EFFECT: increased reliability; possibility of diverting 85-90% of water contained in water-bearing horizons.

3 dwg

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