CN216379408U

CN216379408U - Channel concrete seepage prevention structure

Info

Publication number: CN216379408U
Application number: CN202123066419.1U
Authority: CN
Inventors: 吕荣英; 何卫安
Original assignee: Sinohydro Bureau 9 Co Ltd
Current assignee: Sinohydro Bureau 9 Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-04-26
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses a channel concrete seepage-proofing structure, which belongs to the technical field of channel seepage-proofing and comprises a soil foundation and a backflow pipeline, wherein three soil layers are arranged on two sides of the top of the soil foundation, a sand cushion layer is arranged in the middle of the top of the soil foundation, geomembranes are arranged on the three soil layers and the top of the sand cushion layer, channel side concrete lining plates are arranged on two sides of the top of the geomembrane, a channel bottom concrete lining layer is arranged in the middle of the top of the geomembrane, and a first gap is formed between the channel side concrete lining plates; according to the utility model, the first drainage pipeline, the second drainage pipeline, the backflow pipeline and the check valve are additionally arranged at the gap of the canal bed structure, so that a water source seeping downwards at the concrete gap on the canal bed can be efficiently recovered, the accumulation of the water source in the internal anti-seepage structure is reduced, and the loss of the anti-seepage structure is reduced.

Description

Channel concrete seepage prevention structure

Technical Field

The utility model relates to canal seepage prevention, in particular to a canal concrete seepage prevention structure, and belongs to the technical field of canal seepage prevention construction.

Background

Canal seepage prevention is an engineering measure for reducing the leakage loss of canal water delivery. Not only can save irrigation water, but also can reduce the underground water level and prevent the secondary salinization of soil; the erosion and collapse of the channel are prevented, the flow rate is accelerated, the water delivery capacity is improved, and the section of the channel and the size of a building are reduced; the occupied area is saved, and the engineering cost, the maintenance and management cost and the like are reduced.

The seepage-proofing treatment of the gap between the canals of the existing channel seepage-proofing structure is less, the connecting material at the gap is easy to expand with heat and contract with cold in winter and summer, so that the water source is accelerated to enter the interior of the protective layer, more water source is stored in the interior of the protective layer for a long time, and the protective layer is accelerated to be damaged.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a canal concrete seepage-proofing structure.

The purpose of the utility model can be achieved by adopting the following technical scheme:

the utility model provides a channel concrete seepage prevention structure, includes soil matrix and backflow pipeline, soil matrix top both sides are provided with the three layers of soil, soil matrix top middle part is provided with the sand cushion layer, the three layers of soil with the sand cushion layer top all is provided with the geomembrane, geomembrane top both sides are provided with canal limit concrete lining board, geomembrane top middle part is provided with concrete lining layer at the bottom of the canal, the shaping has first gap between the concrete lining layer at the edge of the canal, canal limit concrete lining board with the shaping has the second gap between the concrete lining layer at the bottom of the canal, set up bonding slurry and first drainage pipeline in the first gap, be provided with bonding slurry and second drainage pipeline in the second gap, be provided with on the wall of second drainage pipeline bottom the backflow pipeline.

Preferably, the three-joint soil layer with the connection is pour to the soil matrix, the sand cushion layer with the connection is pressed to the soil matrix card, the geomembrane with the three-joint soil layer and the equal cementing of sand cushion layer, canal limit concrete lining board with the concrete lining layer of canal base all with the geomembrane is glued joint.

Preferably, the bonding slurry with canal limit concrete lining board and the equal cementing in canal bottom concrete lining layer, first drainage pipeline card is pressed in first gap bottom and is wrapped up by the geomembrane, second drainage pipeline card is pressed in second gap bottom and is wrapped up by the geomembrane.

Preferably, the backflow pipeline with the second drainage pipe intercommunication, the backflow pipeline top runs through the bottom of a canal concrete lining layer, the last valve joint of backflow pipeline has the check valve.

Preferably, the two sides of the top end of the canal side concrete lining plate are glued with canal top concrete fixing plates, and the water collecting net plates are clamped and pressed in the sand cushion layer.

Preferably, one side of the water collecting net plate is communicated with a flow guide pipe, the flow guide pipe is communicated with the backflow pipeline, and the geomembrane, the sand cushion layer and the three-layer soil layer jointly form an anti-leakage assembly.

The utility model has the beneficial technical effects that:

1. according to the utility model, the first drainage pipeline, the second drainage pipeline, the backflow pipeline and the check valve are additionally arranged at the gap of the canal bed structure, so that a water source seeping downwards at the concrete gap on the canal bed can be efficiently recovered, the accumulation of the water source in the internal anti-seepage structure is reduced, and the loss of the anti-seepage structure is reduced;

2. according to the utility model, the water collecting screen plate and the flow guide pipe are additionally arranged at the bottom of the channel bed, so that the underground water is collected, the underground water level is reduced, the phenomenon of reverse osmosis when the underground water level is higher than the channel bottom is avoided, and the integrity of the cement structure of the channel bed is effectively protected.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of a canal concrete impermeable structure according to the present invention;

FIG. 2 is a schematic view showing the connection relationship of a first drainage pipe, a second drainage pipe, a return pipe, a flow guide pipe and a water collecting net plate in a preferred embodiment of a canal concrete impermeable structure according to the present invention;

fig. 3 is a front sectional view of a preferred embodiment of a canal concrete impermeable structure according to the present invention;

FIG. 4 is a top view showing a connection relationship between a trench-side concrete lining panel and a first drainage pipe in a preferred embodiment of a canal concrete seepage prevention structure according to the present invention;

fig. 5 is a schematic view showing the connection relationship of a canal side concrete lining board, a canal bottom concrete course and a second drainage pipeline in a preferred embodiment of the canal concrete seepage prevention structure according to the utility model.

The reference numerals are explained below:

1-a canal side concrete lining board; 2-a concrete lining layer at the bottom of the canal; 3-concrete fixing plate of canal top; 4-a leak-proof assembly; 5-a soil base; 6-geomembrane; 7-a sand cushion layer; 8-a first gap; 9-a first drainage pipeline; 10-a second water drain pipeline; 11-a return line; 12-bonding the slurry; 13-a second gap; 14-a three-layer soil layer; 15-a check valve; 16-a water collecting net plate; 17-a flow guide pipe.

Detailed Description

In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1-5, the channel concrete seepage-proofing structure provided by this embodiment includes a soil foundation 5 and a backflow pipeline 11, three soil layers 14 are disposed on two sides of the top of the soil foundation 5, a sand cushion layer 7 is disposed in the middle of the top of the soil foundation 5, geomembranes 6 are disposed on the top of the three soil layers 14 and the sand cushion layer 7, trench-edge concrete lining boards 1 are disposed on two sides of the top of the geomembrane 6, a trench-bottom concrete lining layer 2 is disposed in the middle of the top of the geomembrane 6, a first gap 8 is formed between the trench-edge concrete lining boards 1, a second gap 13 is formed between the trench-edge concrete lining boards 1 and the trench-bottom concrete lining layer 2, a bonding slurry 12 and a first drainage pipeline 9 are disposed in the first gap 8, a bonding slurry 12 and a second drainage pipeline 10 are disposed in the second gap 13, and a backflow pipeline 11 is disposed on the bottom wall of the second drainage pipeline 10.

The soil layer 14 is connected with the soil foundation 5 in a pouring mode, the sand cushion layer 7 is connected with the soil foundation 5 in a clamping and pressing mode, the geomembrane 6 is connected with the soil layer 14 and the sand cushion layer 7 in an adhesive mode, the concrete lining plate 1 on the edge of the canal and the concrete lining layer 2 on the bottom of the canal are connected with the geomembrane 6 in an adhesive mode, the soil layer 14 is a building material consisting of lime, clay and fine sand, has certain strength and water resistance and is mainly used for foundations or road cushion layers of buildings.

Bonding slurry 12 all splices with canal limit concrete lining board 1 and canal bottom concrete lining layer 2, and first drainage pipe 9 blocks presses in first gap 8 bottom and by geomembrane 6 parcel, and second drainage pipe 10 blocks presses in second gap 13 bottom and by geomembrane 6 parcel, and geomembrane 6 uses plastic film as prevention of seepage substrate, and they are the flexible material of polymer chemistry, and the proportion is less, and the extensibility is stronger, and the adaptability is out of shape can the height, and is corrosion-resistant, low temperature resistant, and freezing resistance is good.

Backflow pipeline 11 and second drainage pipe 10 intercommunication, backflow pipeline 11 top run through the bottom of a canal concrete lining layer 2, and backflow pipeline 11 is gone up the valve and is connect check valve 15, and the back flow is used for inside infiltration water source's outwards to be derived.

The ditch 1 top both sides of canal limit concrete lining board have the ditch top concrete fixed plate 3 of cementing, and the card is pressed there is catchment otter board 16 in the sand cushion layer 7, and catchment otter board 16 can be favorable to the collection of the groundwater in the sand cushion layer 7, derives from backflow pipeline 11 in the lump, avoids the reverse infiltration bed structure of groundwater.

One side of the water collecting net plate 16 is communicated with a flow guide pipe 17, the flow guide pipe 17 is communicated with the backflow pipeline 11, and the geomembrane 6, the sand cushion layer 7 and the three-layer soil layer 14 jointly form the anti-leakage assembly 4.

As shown in fig. 1 to fig. 3, the working process of the canal concrete seepage-proofing structure provided by this embodiment is as follows:

step 1: when the device works specifically, canal water circulates on the canal edge concrete lining board 1 and the canal bottom concrete lining layer 2, and can seep downwards at the canal edge concrete lining board 1, the canal bottom concrete lining layer 2, the first gap 8 and the second gap 13, wherein the water source seeping downwards at the surface layers of the canal edge concrete lining board 1 and the canal bottom concrete lining layer 2 is effectively blocked by the geomembrane 6, the sand cushion layer 7 and the tri-layer soil layer 14 in the impermeable layer assembly, so that the water source is prevented from entering the soil foundation 5 and damaging the foundation of the canal;

step 2: water sources at the first gap 8 and the second gap 13 seep downwards from the bonding slurry 12 and are directly recycled into the first drainage pipeline 9 and the second drainage pipeline 10, and because the first drainage pipeline 9 and the second drainage pipeline 10 are of a conduction structure, the two water sources are gathered together, enter the backflow pipeline 11 and are discharged to the top of the concrete lining layer 2 at the bottom of the channel, so that the seeped water at the positions is prevented from entering the impermeable layer assembly, and the loss of the impermeable structure is reduced;

and step 3: in addition, when 2 bottom groundwater in the bottom of a canal concrete lining layer is for being higher than the bottom of a canal, groundwater seepage from catchment otter board 16 in sand bed course 7 enters into honeycomb duct 17, joins with the water in return line 11, derives to 2 tops in the bottom of a canal concrete lining layer in the lump, avoids the phenomenon that takes place the hyperfiltration when groundwater level is higher than the bottom of a canal, the effectual completion of protecting the bed cement structure.

The above are only further embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and its concept within the scope of the present invention.

Claims

1. The utility model provides a channel concrete seepage prevention structure which characterized in that: including soil base (5) and backflow pipeline (11), soil base (5) top both sides are provided with three and close soil horizon (14), soil base (5) top middle part is provided with sand cushion layer (7), three close soil horizon (14) with sand cushion layer (7) top all is provided with geomembrane (6), geomembrane (6) top both sides are provided with canal limit concrete lining board (1), geomembrane (6) top middle part is provided with canal bottom concrete lining layer (2), the shaping has first gap (8) between canal limit concrete lining board (1), canal limit concrete lining board (1) with the shaping has second gap (13) between canal bottom concrete lining layer (2), set up bonding mortar (12) and first row (9) in first gap (8), be provided with bonding mortar water pipeline (12) and second drainage pipe (10) in the second gap (13), the bottom wall of the second drainage pipeline (10) is provided with the backflow pipeline (11).

2. The channel concrete impermeable structure of claim 1, wherein: three close soil layer (14) with soil matrix (5) are pour and are connected, sand cushion layer (7) with soil matrix (5) card is pressed and is connected, geomembrane (6) with three close soil layer (14) and sand cushion layer (7) all splice, canal side concrete lining board (1) with concrete lining layer (2) all with geomembrane (6) splice.

3. The channel concrete impermeable structure of claim 2, wherein: bonding slurry (12) with canal limit concrete lining board (1) and at the bottom of the canal concrete lining layer (2) all splice, first drainage pipe (9) card is pressed in first gap (8) bottom and is wrapped up by geomembrane (6), second drainage pipe (10) card is pressed in second gap (13) bottom and is wrapped up by geomembrane (6).

4. The channel concrete impermeable structure of claim 3, wherein: backflow pipeline (11) with second drainage pipe (10) intercommunication, backflow pipeline (11) top runs through canal bottom concrete lining layer (2), backflow pipeline (11) are gone up the valve and are connect check valve (15).

5. The channel concrete impermeable structure of claim 4, wherein: the ditch limit concrete lining board (1) top both sides cementing have ditch top concrete fixing plate (3), catchment otter board (16) have been pressed to the card in sand cushion layer (7).

6. The channel concrete impermeable structure of claim 5, wherein: one side of the water collecting net plate (16) is communicated with a flow guide pipe (17), the flow guide pipe (17) is communicated with the backflow pipeline (11), and the geomembrane (6), the sand cushion layer (7) and the three-layer soil layer (14) jointly form an anti-leakage assembly (4).