A gravel blind ditch for solving the problem of water accumulation in road base

Abstract

The application relates to the field of road construction, in particular to a gravel blind ditch for solving the problem of water accumulation in a road base layer, which comprises a first ditch body, a second ditch body and a water permeable pipe, the first ditch body is distributed along the extension direction of a road, the second ditch body is distributed along the width direction of the road, the second ditch body is communicated with the first ditch body, the water permeable pipe is a porous water permeable pipe, and the water permeable pipe is distributed in the first ditch body and the second ditch body. The application has the effect of reducing the problem of water accumulation in the road base layer.

Description

Technical Field

[0001] This application relates to the field of road construction, and in particular to a gravel blind drain for solving the problem of water accumulation in road base layers. Background Technology

[0002] With economic and social development, the mileage of highway construction has increased year by year, putting increasing pressure on maintenance departments. In particular, the repair and maintenance of pavement structures in certain sections adds considerable burden to maintenance departments, increasing the overall maintenance cost throughout the highway's life cycle. A portion of pavement damage occurs in low-lying sections with poor drainage. The underlying cause is primarily insufficient pavement structural strength due to poor drainage in the base course. Long-term water accumulation in the base course weakens its strength, making it unable to withstand the vehicle loads transmitted from the surface layer, leading to breakage. This manifests as breakage, damage, and settlement of the surface layer, resulting in structural damage to the pavement. To address the problem of poor drainage in the base course of existing roads, this plan proposes the design of blind drains in low-lying, poorly drained sections of existing roads. Utility Model Content

[0003] To reduce the problem of water accumulation in road base layers, this application provides a gravel blind drain for solving the problem of water accumulation in road base layers.

[0004] This application provides a gravel blind drain for solving the problem of water accumulation in road base layers, employing the following technical solution: A gravel drainage ditch for solving the problem of water accumulation in road base includes a first ditch body, a second ditch body, and a permeable pipe. The first ditch body is distributed along the extension direction of the road, the second ditch body is distributed along the width direction of the road, and the second ditch body is connected to the first ditch body. The permeable pipe is a porous permeable pipe, which is distributed in the first ditch body and the second ditch body.

[0005] By adopting the above technical solution, a first ditch and a second ditch are set under the road, and permeable pipes are installed in the first ditch and the second ditch. When there is water accumulation in the road base, the water will seep into the first ditch and the second ditch and be discharged through the water pipes, thus solving the problem of water accumulation in the road base.

[0006] Optionally, a waterproof geotextile is laid at the bottom of the first trench, and the waterproof geotextile covers the bottom and side walls of the first trench.

[0007] By adopting the above technical solution, waterproof geotextile is laid in the first trench, which is conducive to water accumulation in the first trench and discharge from the permeable pipe.

[0008] Optionally, a layer of crushed stone is laid in the first trench.

[0009] By adopting the above technical solution, a layer of crushed stone is laid in the first trench. On the one hand, the first trench is backfilled, and on the other hand, it is conducive to filtering sand and reducing the possibility of the permeable pipe being blocked by sand.

[0010] Optionally, the outer peripheral wall of the permeable pipe is surrounded by a first filter fabric layer.

[0011] By adopting the above technical solution, a first filter fabric layer is provided on the outer peripheral wall of the permeable pipe to facilitate the filtration of sand and soil, thereby reducing the possibility of the permeable pipe being blocked by sand and soil.

[0012] Optionally, a second filter fabric layer is laid on the upper part of the first trench body above the gravel layer, and a backfill layer is laid on the upper part of the first trench body above the second filter fabric layer.

[0013] By adopting the above technical solution, a second filter fabric layer is set on the crushed stone layer to filter impurities, and then a backfill layer is laid on top for backfilling.

[0014] Optionally, the sidewalls of the first trench are provided with support plates, and the upper part of the support plates is provided with guide plates. The width of the two guide plates gradually increases from bottom to top to form a flared section.

[0015] By adopting the above technical solution, a guide plate is provided, and the guide plate gradually expands from bottom to top to facilitate the guidance of accumulated water and make it easier for the accumulated water to flow into the first ditch.

[0016] Optionally, the waterproof geotextile extends to the guide plate to cover it.

[0017] Optionally, a sponge layer is provided between the two guide plates, the sponge layer being located above the second filter fabric layer.

[0018] By adopting the above technical solution, a sponge layer is provided on the guide plate to perform preliminary filtration of impurities.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. A first ditch and a second ditch are installed under the road, and permeable pipes are installed in the first ditch and the second ditch. When there is water accumulation in the road base, the water will seep into the first ditch and the second ditch and be discharged through the water pipes, thus solving the problem of water accumulation in the road base. 2. A guide plate is provided, and the guide plate gradually expands from bottom to top to guide the accumulated water and facilitate the flow of the accumulated water into the first ditch. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of Example 1; Figure 2 This is a schematic diagram showing the distribution of the first and second channels in Example 1; Figure 3 This is a schematic diagram of the internal structure of the first groove in Example 1; Figure 4 This is a schematic diagram of the internal structure of the first groove in Example 2.

[0021] Explanation of reference numerals in the attached drawings: 1. Road; 2. Drainage ditch; 3. First ditch body; 31. Waterproof geotextile; 32. Crushed stone layer; 33. Second filter fabric layer; 34. Backfill layer; 4. Second ditch body; 5. Permeable pipe; 51. First filter fabric layer; 6. Support plate; 61. Guide plate; 62. Sponge layer. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] Example 1: Embodiment 1 of this application discloses a gravel blind drain for solving the problem of water accumulation in road base layers. (Refer to...) Figure 1 and Figure 2 The system includes a first ditch 3, a second ditch 4, and permeable pipes 5. Both the first ditch 3 and the second ditch 4 are located below the base layer of the road 1. The first ditch 3 is distributed along the extension direction of the road 1, and the second ditch 4 is distributed along the width direction of the road 1. Several second ditch 4s are correspondingly provided for each first ditch 3. One end of each second ditch 4 is connected to the first ditch 3, and the other end is connected to the drainage ditches 2 on both sides of the road 1. The permeable pipes 5 are porous permeable pipes, distributed within the first ditch 3 and the second ditch 4.

[0024] Reference Figure 3 In this embodiment, the first ditch 3 and the second ditch 4 are identical in structure except for their distribution location. Therefore, this embodiment takes the first ditch 3 as an example. A waterproof geotextile 31 is laid and installed at the bottom of the first ditch 3, covering the bottom and side walls of the first ditch 3. The permeable pipe 5 is located on the upper surface of the waterproof geotextile 31. This facilitates water accumulation in the first ditch 3 and drainage from the permeable pipe 5.

[0025] A layer of crushed stone 32 is laid inside the first trench 3 to backfill the first trench 3, and on the other hand, it helps to filter the sand and reduce the possibility of the permeable pipe 5 being blocked by sand and soil. A second filter fabric layer 33 is laid on the first trench 3 above the crushed stone layer 32, and a backfill layer 34 is laid on the first trench 3 above the second filter fabric layer 33.

[0026] The outer periphery of the permeable pipe 5 is fixedly connected with a first filter fabric layer 51, and both the first filter fabric layer 51 and the second filter fabric layer 33 are filter geotextiles.

[0027] The implementation principle of Embodiment 1 of this application is as follows: A first ditch 3 and a second ditch 4 are provided below the road 1, and a permeable pipe 5 is provided in the first ditch 3 and the second ditch 4. When there is water accumulation in the base layer of the road 1, the water will seep into the first ditch 3 and the second ditch 4 and be discharged through the permeable pipe, thus solving the problem of water accumulation in the base layer of the road 1.

[0028] Example 2: The difference between Example 2 and Example 1 is that, referring to Figure 4 The sidewalls of the first trench 3 are all fixedly installed with support plates 6. The support plates 6 are vertically arranged. The upper part of the support plate 6 is fixedly connected with a guide plate 61. The width of the two guide plates 61 gradually increases from bottom to top to form a flared part. The waterproof geotextile 31 extends upward to cover the side of the support plate 6 near the other support plate 6 and the side of the guide plate 61.

[0029] Reference Figure 4 A sponge layer 62 is laid between the two guide plates 61, and the sponge layer 62 is located above the second filter fabric layer 33.

[0030] Reference Figure 4 The bottom wall of the first ditch 3 is inclined from both sides to the middle in a vertically downward direction, and the permeable pipe 5 is located in the middle of the first ditch 3.

[0031] The implementation principle of Example 2 is as follows: a guide plate 61 is provided, and the guide plate 61 gradually expands from bottom to top to guide the accumulated water and facilitate the flow of the accumulated water into the first ditch 3.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A gravel blind drain for solving the problem of water accumulation in road base layers, characterized in that: It includes a first ditch (3), a second ditch (4), and a permeable pipe (5). The first ditch (3) is distributed along the extension direction of the road (1), the second ditch (4) is distributed along the width direction of the road (1), the second ditch (4) is connected to the first ditch (3), and the permeable pipe (5) is a porous permeable pipe (5). The permeable pipe (5) is distributed in the first ditch (3) and the second ditch (4).

2. A gravel blind drain for solving the problem of water accumulation in road base layers according to claim 1, characterized in that: The bottom of the first trench (3) is covered with a waterproof geotextile (31), which covers the bottom and side walls of the first trench (3).

3. A gravel blind drain for solving the problem of water accumulation in road base layers according to claim 1, characterized in that: The first trench (3) is lined with a layer of crushed stone (32).

4. A gravel blind drain for solving the problem of water accumulation in road base layers according to claim 1, characterized in that: The outer periphery of the permeable pipe (5) is surrounded by a first filter fabric layer.

5. A gravel blind drain for solving the problem of water accumulation in road base layers according to claim 2, characterized in that: The first trench (3) is located above the gravel layer (32) and a second filter fabric layer is laid on it. The first trench (3) is located above the second filter fabric layer and a backfill layer (34) is laid on it.

6. A gravel blind drain for solving the problem of water accumulation in road base layers according to claim 5, characterized in that: The first trench (3) is provided with a support plate (6) on its side wall. The upper part of the support plate (6) is provided with a guide plate (61). The width of the two guide plates (61) gradually increases from bottom to top to form a flared part.

7. A gravel blind drain for solving the problem of water accumulation in road base layers according to claim 6, characterized in that: The waterproof geotextile (31) extends to the guide plate (61) to cover the guide plate (61).

8. A gravel blind drain for solving the problem of water accumulation in road base layers according to claim 7, characterized in that: A sponge layer (62) is disposed between the two guide plates (61), the sponge layer (62) being located above the second filter fabric layer.

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