Frost heaving prevention protection channel for cold region

Abstract

The frost heaving prevention protection channel for the cold region comprises second geotechnical cloth which is evenly laid on the surface of the channel in an attached mode, a layer of first geomembrane is evenly laid on the upper surface of the second geotechnical cloth, and first geotechnical cloth is evenly laid on the upper surface of the first geomembrane. Protective frames are uniformly attached to the upper surface of the first geotechnical cloth, polyurethane protective layers are arranged on the upper surfaces of the protective frames, and frost heaving resistance layers are embedded in the protective frames; according to the technical scheme, the multiple layers of geotechnical cloth are arranged, the geotechnical membranes are arranged between the geotechnical cloth, the geotechnical cloth and the geotechnical membranes form an inverted filter layer and an anti-seepage layer, the frost heaving problem of the channel slope protection under the negative temperature effect is reduced, workers can adjust the number of the geotechnical cloth and the number of the geotechnical membranes according to the requirements of the workers, and the working efficiency is improved. And the frost heaving prevention capability is further adjusted.

Description

Technical Field

[0001] This utility model relates to the technical field of cold-region channel protection devices, specifically to a frost heave protection channel for cold regions. Background Technology

[0002] Frost heave damage and leakage in canals are common problems in water conservancy projects in cold regions of northern my country. Canal slopes in cold areas are prone to frost heave under sub-zero temperatures, with severe freeze-thaw cycles occurring daily. Simultaneously subjected to frost heave, ice loads, and water erosion, they are easily damaged.

[0003] Existing channels mainly use materials such as cement soil, concrete, asphalt concrete, and membrane materials as the antifreeze and anti-seepage layer. After multiple freeze-thaw cycles, the antifreeze and anti-seepage layer of the channel suffers significant damage from frost heave, which significantly increases the channel maintenance cost and affects the channel's operational efficiency. Therefore, there is an urgent need to design a structure that can effectively resist frost heave for channels in cold regions.

[0004] In view of the problems exposed in the current use of anti-frost heave protection channels in cold regions, it is necessary to improve and optimize the anti-frost heave protection structure of the channels. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a frost heave protection channel for cold regions, which has the characteristics of frost heave resistance, seepage prevention, and water flow erosion prevention.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a frost heave protection channel for cold regions, comprising a second geotextile uniformly laid on the channel surface, a first geomembrane uniformly laid on the upper surface of the second geotextile, a first geotextile uniformly laid on the upper surface of the first geomembrane, a protective frame uniformly placed on the upper surface of the first geotextile, a polyurethane protective layer on the upper surface of the protective frame, a frost heave resistance layer embedded inside the protective frame, and a plurality of hinges uniformly embedded on the frame on the side of the protective frame, wherein the plurality of protective frames are locked and fixed by locking nails when spliced ​​together.

[0007] As a preferred technical solution for frost heave protection channels in cold regions according to this utility model, the protective frame is a hollow frame component, and the frost heave resistance layer inside the protective frame is a porous foam board component or a porous plastic plate component, which is used to reduce the deformation of the channel surface during soil frost heave.

[0008] As a preferred technical solution for frost heave protection channels in cold regions according to this utility model, each of the four corners of the protective frame is provided with a recessed groove, and a sunken groove is also provided at each of the four corners of the protective frame. When the four protective frames are spliced ​​together, the recessed grooves can form a hollow cylindrical component to facilitate the passage of the locking pin. A locking ring can also be fitted on the locking pin. The locking ring is fitted on the sunken groove under the compression of the locking pin to lock and fix the protective frame.

[0009] As a preferred technical solution for frost heave protection channels in cold regions according to this utility model, the frame of the protective frame is also fitted with detachable reinforcing ribs, which are used to locally enhance the structural strength of the protective frame.

[0010] As a preferred technical solution for frost heave protection channels in cold regions according to this utility model, the first geotextile and the second geotextile can be made of the same components. The first geotextile, the first geomembrane and the second geotextile form a sandwich structure. The first geomembrane can also be provided with multiple layers, and the corresponding first geotextile is also provided with a corresponding number of layers.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This technical solution incorporates multiple layers of geotextile. By placing geomembranes between the geotextiles, the geotextiles and geomembranes form a filter layer and an anti-seepage layer, reducing the frost heave problem of the channel slope under negative temperatures. Workers can also adjust the number of geotextiles and geomembranes according to their needs, thereby further adjusting the frost heave resistance.

[0013] 2. A protective frame is added to the channel slope protection, and a frost heave resistance layer is also set in the protective frame. The splicing structure of the protective frame makes it easy for workers to install it on the channel slope protection. The structure of the protective frame can reduce the deformation of the channel slope protection during repeated freeze-thaw cycles at sub-zero temperatures, reduce the damage to the channel slope caused by repeated freeze-thaw cycles, and thus effectively improve the channel's ability to resist frost heave, prevent seepage and water erosion. Attached Figure Description

[0014] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the channel structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the channel cross-section in this utility model;

[0017] Figure 3 This is a schematic diagram of the pad structure in this utility model;

[0018] Figure 4 In this utility model Figure 3 A front view structural diagram;

[0019] In the diagram: 1. Polyurethane protective layer; 2. Protective frame; 3. First geotextile; 4. First geomembrane; 5. Second geotextile; 6. Locking nail; 7. Reinforcing rib; 8. Frost heave resistance layer; 9. Hinge shaft; 10. Recessed groove; 11. Sinking groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] like Figure 1-4 As shown, the present invention discloses a frost heave protection channel for cold regions, comprising a second geotextile 5 uniformly laid on the channel surface, a first geomembrane 4 uniformly laid on the upper surface of the second geotextile 5, a first geotextile 3 uniformly laid on the upper surface of the first geomembrane 4, a protective frame 2 uniformly placed on the upper surface of the first geotextile 3, a polyurethane protective layer 1 on the upper surface of the protective frame 2, a frost heave resistance layer 8 embedded inside the protective frame 2, and uniformly fitted on the side frame of the protective frame 2. The system is equipped with several hinge shafts 9 and several protective frames 2, which are locked and fixed by locking nails 6 when spliced. The geomembrane used in this technical solution is a geosynthetic seepage prevention material made of plastic film as the seepage prevention base material and then composited with non-woven fabric. It has the characteristics of being impermeable to water and is used to initially isolate the water inside the channel from the surface of the channel slope, reduce the direct seepage of water into the channel slope, and avoid the channel sidewall cracking caused by excessive water content in the channel slope due to repeated freeze-thaw cycles when the temperature changes. This improves the lateral stability of the channel slope.

[0023] Specifically, the protective frame 2 is a hollow frame component, and the frost heave resistance layer 8 inside the protective frame 2 is a porous foam board component or a porous plastic plate component, which is used to reduce the deformation of the channel surface during soil frost heave. In this embodiment, the structure of the protective frame 2 is not limited to a rectangular frame structure, but can also adopt a triangular or hexagonal structure.

[0024] Specifically, each of the four corners of the protective frame 2 is provided with a recessed groove 10, and a recessed groove 11 is also provided at the four corners of the protective frame 2. When the four protective frames 2 are spliced ​​together, the recessed grooves 10 can form a hollow cylindrical component to facilitate the passage of the locking nail 6. A locking ring can also be fitted on the locking nail 6. The locking ring is fitted on the recessed groove 11 under the compression of the locking nail 6 to lock and fix the protective frame 2. In this embodiment, when a rectangular protective frame 2 is used, two protective frames 2 or four protective frames 2 can be spliced ​​together. When a triangular or hexagonal protective frame 2 is used, the workers can match the locking method according to the shape of the frame.

[0025] Specifically, the frame of the protective frame 2 is also fitted with a detachable reinforcing rib 7. The reinforcing rib 7 is used to locally strengthen the structural strength of the protective frame 2. In this embodiment, the reinforcing rib 7 is used to improve the structure of the protective frame 2 when the protective frame 2 does not need to be bent by the hinge shaft 9. The reinforcing rib 7 and the protective frame 2 can be connected by bolts or magnetic attraction.

[0026] Specifically, the first geotextile 3 and the second geotextile 5 can use the same components. The first geotextile 3, the first geomembrane 4 and the second geotextile 5 form a sandwich structure. The first geomembrane 4 can also be provided with multiple layers, and the corresponding first geotextile 3 is also provided with a corresponding number of layers. In this embodiment, the staff needs to select the appropriate number of layers of the sandwich structure according to the temperature change information of the hydrology at the work site.

[0027] The working principle and usage process of this utility model: In the implementation process of this utility model, the workers first level the channel foundation, lay a crushed stone cushion layer of five to ten centimeters on the surface of the channel, and after leveling the crushed stone cushion layer, the geotextile construction work is carried out on the channel. First, a second geotextile 5 is laid on the surface of the channel to form the basic filter layer of the soil. Then, a first geomembrane 4 is laid on the upper surface of the second geotextile 5 to form an anti-seepage layer. Then, a first geotextile 3 is laid on the upper surface of the first geomembrane 4. The function of this first geotextile 3 is to provide an outer layer protection for the bottom first geomembrane 4. In the actual operation, the workers can also adjust the number of layers of the first geomembrane 4 according to their own needs. When the number of layers of the first geomembrane 4 is adjusted, the number of layers of the first geotextile 3 is also adjusted accordingly.

[0028] Afterwards, the workers laid the protective frame 2 on the upper surface of the first geotextile 3. The frost heave resistance layer 8 inside the protective frame 2 is used to absorb and reduce the deformation of the channel surface. During the laying of the protective frame 2, the workers nailed locking nails 6 at the four corners of the protective frame 2. The bottom of the locking nails 6 is inserted deep into the soil to fix the protective frame 2. At the same time, the structure below the protective frame 2 is fixed.

[0029] During the implementation of the technical solution, the staff will also put a locking ring on the locking pin 6. When the locking ring is locked, it will fit into the sinker 11 to further improve the stability of the structure.

[0030] The protective frame 2 is equipped with several hinges 9. The function of the hinges 9 is to facilitate the bending of the protective frame 2 itself at a suitable angle in the bending area of ​​the channel, so that the protective frame 2 can be laid directly without the need for workers to cut or trim it again.

[0031] Then, a polyurethane protective layer 1 is laid on the upper surface of the protective frame 2 to protect the anti-freeze structure, improve the stability of the structure, so that the anti-freeze structure of the channel will not freeze under negative temperature conditions, and can withstand the effects of freezing, ice load, water flow scouring and other effects when the temperature changes severely.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to further limit the present utility model. All equivalent changes made based on the description and drawings of the present utility model are within the protection scope of the present utility model.

Claims

1. A frost heave protection channel for use in cold regions, characterized in that, The system includes a second geotextile (5) that is evenly laid on the surface of the channel. A first geomembrane (4) is evenly laid on the upper surface of the second geotextile (5). A first geotextile (3) is then evenly laid on the upper surface of the first geomembrane (4). A protective frame (2) is evenly placed on the upper surface of the first geotextile (3). A polyurethane protective layer (1) is provided on the upper surface of the protective frame (2). A frost heave resistance layer (8) is embedded inside the protective frame (2). Several hinge shafts (9) are evenly embedded on the skeleton on the side of the protective frame (2). When several protective frames (2) are spliced ​​together, they are locked and fixed by locking nails (6).

2. The anti-frost heave protection channel for cold regions according to claim 1, characterized in that: The protective frame (2) is a hollow frame component. The frost heave resistance layer (8) inside the protective frame (2) is a porous foam board component or a porous plastic plate component, which is used to reduce the deformation of the channel surface during soil frost heave.

3. The anti-frost heave protection channel for cold regions according to claim 1, characterized in that: The protective frame (2) is provided with a recess groove (10) at each of its four corners, and a sinking groove (11) is also provided at each of its four corners. When the four protective frames (2) are spliced ​​together, the recess groove (10) can form a hollow cylindrical component to facilitate the passage of the locking nail (6). A locking ring can also be fitted on the locking nail (6). The locking ring is fitted on the sinking groove (11) under the compression of the locking nail (6) to lock and fix the protective frame (2).

4. A frost heave protection channel for cold regions according to claim 1, characterized in that: The protective frame (2) is also fitted with a detachable reinforcing rib (7), which is used to locally strengthen the structural strength of the protective frame (2).

5. A frost heave protection channel for cold regions according to claim 1, characterized in that: The first geotextile (3) and the second geotextile (5) can be made of the same components. The first geotextile (3), the first geomembrane (4) and the second geotextile (5) form a sandwich structure. The first geomembrane (4) can also be provided with multiple layers, and the corresponding first geotextile (3) is also provided with a corresponding number of layers.

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