Waterproof U-shaped groove structure

Abstract

The utility model relates to the field of U-shaped grooves, and discloses a waterproof U-shaped groove structure which comprises a U-shaped groove body, a water collecting groove and waterproof geotechnical cloth, and a plurality of drainage pipes penetrating through retaining walls are pre-buried in the retaining walls on the two sides of the U-shaped groove. The water collecting tank is buried in soil outside the retaining wall, the upper end of the water collecting tank is covered with water permeable bricks for blocking the soil, and the water collecting tank is communicated with the drainage pipe; the waterproof geotechnical cloth is obliquely buried in soil on the outer side of the retaining wall, and the lower side of the waterproof geotechnical cloth extends into the water collecting tank; in the waterproof U-shaped groove structure, the waterproof geotechnical cloth divides the soil outside the retaining wall into the shallow upper-layer soil and the majority of the lower-layer soil, and accumulated water infiltrated in the upper-layer soil can be guided into the water collecting groove along the waterproof geotechnical cloth and finally discharged along the water discharging pipe; the lower soil layer is covered by the waterproof geotechnical cloth, so that the lower soil layer is not easy to permeate by rainwater even in a rainy season, the risk of deformation and collapse of the soil due to rainwater permeation is reduced, and the structural safety of the U-shaped groove is improved.

Description

Technical Field

[0001] The utility model relates to the field of U-shaped grooves, in particular to a waterproof U-shaped groove structure. Background Art

[0002] When constructing an underpass of a railway or highway, the terrain of the road surface is lower than the surrounding ground. Therefore, enclosures are required on both sides of the road surface, that is, the road surface and the enclosures on both sides form a U-shaped trough structure.

[0003] At present, the enclosures on both sides of the U-shaped trough structure are basically built with reinforced concrete structures. Rainwater on the surrounding surface is discharged into the gutter through drainage holes pre-buried in the enclosure structure. However, if the drainage holes are silted up and blocked, and the concrete has poor permeability, the water seeping inside the soil above the outer side of the enclosure is difficult to discharge and gradually penetrates into the soil at the bottom of the outer side of the enclosure. In seasons with more rain, the soil outside the enclosure accumulates more water and is prone to deformation or even collapse, threatening the safety of the U-shaped trough structure. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the background technology and provide a waterproof U-shaped groove structure.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A waterproof U-shaped groove structure, comprising:

[0007] The U-shaped trough body comprises a structural bottom plate and two sets of retaining walls arranged on both sides of the structural bottom plate, wherein a plurality of drainage pipes penetrating the retaining wall are pre-buried in the retaining wall;

[0008] A water collecting trough is buried in the soil outside the retaining wall, the upper end of the water collecting trough is covered with a permeable brick to block the soil, and the water collecting trough is connected to the drainage pipe; and

[0009] A waterproof geotextile is buried obliquely in the soil outside the retaining wall, and a lower side of the waterproof geotextile extends into the water collection tank.

[0010] Furthermore, in any cross section perpendicular to the length direction of the water collecting trough, the cross section of the water collecting trough includes a V-shaped groove section opening upward and a straight groove section with the same width as the opening of the V-shaped groove section, the straight groove section is located at the upper end of the V-shaped groove section, and the permeable brick is arranged in the straight groove section.

[0011] Furthermore, a pad with a horizontal upper end surface is provided in the V-shaped groove section, a plurality of water-permeable holes are provided in the pad, and the permeable brick is supported above the pad.

[0012] Furthermore, in any cross section perpendicular to the length direction of the sump, the cross-sectional profile of the cushion block is in the shape of an isosceles trapezoid, and the waistline matches the sideline profile of the V-shaped groove segment.

[0013] Furthermore, a plurality of columnar protrusions are evenly arranged on the upper end surface of the cushion block to form a drainage cavity between the cushion block and the permeable brick.

[0014] Furthermore, the plurality of drainage pipes are arranged obliquely, and the higher ends of at least some of the drainage pipes are connected to the bottom of the V-shaped groove section.

[0015] Furthermore, drainage grooves close to the inner side of the retaining wall are laid on both sides of the structural bottom plate, and the drainage grooves are located below the side of the water collecting trough; the water collecting trough and the drainage groove are connected through the drainage pipe.

[0016] Furthermore, a cover plate is provided above the drainage trough, and one end of the cover plate is hinged to the retaining wall.

[0017] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0018] In the waterproof U-shaped trough structure of the utility model, a waterproof geotextile is buried in the soil outside the retaining wall to divide the soil outside the retaining wall into a shallow upper layer of soil and a lower layer of soil that occupies the vast majority. The accumulated water that seeps down in the upper layer of soil can be introduced into the sump along the waterproof geotextile and finally discharged along the drainage pipe. Since the lower layer of soil is covered by the waterproof geotextile, it is not easily penetrated by rainwater even in the rainy season, which reduces the risk of soil deformation and collapse due to rainwater penetration and improves the structural safety of the U-shaped trough. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the waterproof U-shaped groove structure of the utility model;

[0020] Figure 2 It is a partial enlarged view of the waterproof U-shaped groove structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the cushion block structure in one embodiment of the utility model;

[0022] Icons: 1-U-shaped trough body, 10-structural bottom plate, 11-retaining wall, 12-drainage pipe, 2-collecting trough, 20-straight trough section, 21-V-shaped trough section, 22-permeable brick, 3-waterproof geotextile, 4-drainage trough, 40-cover plate, 5-pad, 50-permeable hole, 51-columnar protrusion. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Reference Figures 1 to 3 The utility model discloses a waterproof U-shaped trough structure, which includes a U-shaped trough body 1, a water collecting trough 2, a waterproof geotextile 3, a drainage trough 4 and a cushion block 5.

[0025] Among them, refer to Figure 1 The U-shaped trough body 1 includes a structural bottom plate 10, and a group of retaining walls 11 are respectively arranged on the left and right sides of the structural bottom plate 10, and the two groups of retaining walls 11 are arranged opposite to each other. A drainage ditch 4 is also arranged on the structural bottom plate 10 below the opposite side of each group of retaining walls 11 to discharge the accumulated water entering the U-shaped trough.

[0026] Reference Figure 2 A cover plate 40 is also provided above each set of drainage grooves 4, one end of the cover plate 40 is hinged to the retaining wall 11, and during dredging operations, one side of the free end of the cover plate 40 can be conveniently flipped up to make it stand against the retaining wall 11.

[0027] Among them, refer to Figure 1 A number of drainage pipes 12 penetrating the retaining wall 11 are pre-buried in the retaining wall 11. The drainage pipes 12 are all buried at an angle, and the lower ends are all facing the inside of the U-shaped trough body 1; the higher ends of some drainage pipes 12 extend to above the soil surface outside the retaining wall 11, so as to facilitate timely discharge of accumulated water on the soil surface and reduce the penetration of rainwater into the soil.

[0028] Reference Figure 2 The water collecting trough 2 is buried in the soil outside the two sets of retaining walls 11. In any cross section perpendicular to the length direction of the water collecting trough 2, the cross section of the water collecting trough 2 includes a V-shaped groove section 21 opening upward and a straight groove section 20 with the same width as the opening of the V-shaped groove section 21. The straight groove section 20 is arranged at the upper end of the V-shaped groove section 21. Permeable bricks 22 are arranged in the straight groove section 20. The permeable bricks 22 can block the soil to prevent the soil from falling into and blocking the V-shaped groove section 21 below. The bottom of the V-shaped groove section 21 is connected to the drainage trough 4 through a part of the drainage pipe 12.

[0029] In addition, refer to Figure 2The waterproof geotextile 3 is buried obliquely in the soil outside the retaining wall 11, and the maximum burial depth of the waterproof geotextile 3 does not exceed 1.5m, that is, the waterproof geotextile 5 is in a shallow buried state, and the lower side of the waterproof geotextile 3 extends into the sump 2; the reason why the waterproof geotextile 5 is shallowly buried can prevent rainwater from penetrating into the deep soil, and can also avoid directly laying the waterproof geotextile 5 on the soil surface, which makes the waterproof geotextile 5 easily damaged and weathered by wind and sun, thereby extending the service life of the waterproof geotextile 5.

[0030] The accumulated water seeping from the surface soil can be introduced into the water collection tank 2 through the waterproof geotextile 3 and discharged into the drainage tank 4 through the drainage pipe 12.

[0031] Reference Figure 2 In one embodiment, a pad 5 with a horizontal upper end surface is further provided in the V-shaped groove section 21, and the upper end surface of the pad 5 is as wide as the straight groove section 20. In any cross section perpendicular to the length direction of the sump 2, the cross-sectional profile of the pad 5 is an isosceles trapezoid, and the waistline matches the edge profile of the V-shaped groove section 21, so that the pad 5 can be easily installed in the V-shaped groove section 21; wherein, a plurality of water-permeable holes 50 are opened in the pad 5, and the permeable bricks 22 are supported on the pad 5, so that the permeable bricks 22 can be neatly stacked.

[0032] In one embodiment, a plurality of columnar protrusions 51 are evenly arranged on the upper end surface of the cushion block 5 to form a drainage cavity between the cushion block 5 and the permeable brick 22, so that rainwater seeping from the permeable brick 22 can flow rapidly into the permeable hole 50 along the cavity, and rainwater flowing out of the permeable hole 50 is discharged into the drainage groove 4 along the drainage pipe 12 at the bottom of the V-shaped groove section 21.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A waterproof U-shaped groove structure, characterized in that: include: A U-shaped trough body (1) comprises a structural bottom plate (10) and two sets of retaining walls (11) arranged on both sides of the structural bottom plate (10), wherein a plurality of drainage pipes (12) penetrating the retaining walls (11) are pre-buried in the retaining walls (11); A water collecting trough (2) is buried in the soil outside the retaining wall (11), the upper end of the water collecting trough (2) is covered with a permeable brick (22) to block the soil, and the water collecting trough (2) is connected to the drainage pipe (12); and A waterproof geotextile (3) is buried obliquely in the soil outside the retaining wall (11), and a lower side of the waterproof geotextile (3) extends into the water collection tank (2).

2. The waterproof U-shaped groove structure according to claim 1, characterized in that: In any cross section perpendicular to the length direction of the water collecting trough (2), the cross section of the water collecting trough (2) includes a V-shaped groove section (21) opening upward and a straight groove section (20) having the same width as the opening of the V-shaped groove section (21), the straight groove section (20) being located at the upper end of the V-shaped groove section (21), and the permeable brick (22) being arranged in the straight groove section (20).

3. The waterproof U-shaped groove structure according to claim 2, characterized in that: A cushion block (5) with a horizontal upper end surface is also provided in the V-shaped groove section (21), a plurality of water-permeable holes (50) are provided in the cushion block (5), and the water-permeable brick (22) is supported above the cushion block (5).

4. The waterproof U-shaped groove structure according to claim 3, characterized in that: In any cross section perpendicular to the length direction of the water collecting trough (2), the cross-sectional profile of the cushion block (5) is in the shape of an isosceles trapezoid, and the waistline matches the sideline profile of the V-shaped groove section (21).

5. The waterproof U-shaped groove structure according to claim 3 or 4, characterized in that: The upper end surface of the cushion block (5) is also evenly arranged with a plurality of columnar protrusions (51) to form a drainage cavity between the cushion block (5) and the permeable brick (22).

6. The waterproof U-shaped groove structure according to claim 2, characterized in that: The plurality of drainage pipes (12) are arranged obliquely, and the higher ends of at least some of the drainage pipes (12) are connected to the bottom of the V-shaped groove section (21).

7. The waterproof U-shaped groove structure according to claim 1, characterized in that: Drainage grooves (4) close to the inner side of the retaining wall (11) are also laid on both sides of the structural base plate (10), and the drainage grooves (4) are located below the side of the water collecting trough (2); the water collecting trough (2) and the drainage grooves (4) are connected through the drainage pipe (12).

8. The waterproof U-shaped groove structure according to claim 7, characterized in that: A cover plate (40) is also provided above the drainage trough (4), and one end of the cover plate (40) is hinged to the retaining wall (11).

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