Subgrade drainage ditch structure

Abstract

The utility model provides a kind of roadbed drainage side ditch structure, comprising: side ditch main body, cover ditch plate, precast block, transverse drainage component and filter component;The side ditch main body is cast-in-place concrete side ditch with top opening;The cover ditch plate is C30 concrete prefabricated cover plate, cover is located in the top of the side ditch main body;The precast block is set in cover ditch plate side and with cover ditch plate side wall is inlay, for fixed cover ditch plate;The transverse drainage component includes drain pipe and catch basin;The drain pipe is installed in side ditch main body inner wall, wherein one end is connected with catch basin, other end is communicated with side ditch main body inside;The filter component is located in the top opening of the side ditch main body, and is below cover ditch plate;The filter component includes grating and filter screen, the grating is detachably connected in the top opening of side ditch main body;The filter screen is fixedly connected below the grating;The utility model can prevent blockage, drainage efficiency is high, and stability is good.

Description

Technical Field

[0001] This utility model belongs to the field of roadbed drainage construction technology, specifically relating to a roadbed drainage ditch structure. Background Technology

[0002] In highway subgrade engineering, the drainage system in excavated sections is a key component in ensuring the stability and service life of the subgrade. Existing subgrade drainage ditches have the following shortcomings in practical applications: 1. High risk of blockage: The inlet of the side ditch directly receives water from the roadbed slope. The gravel, mud, weeds and other impurities carried by the water flow can easily enter the side ditch, causing blockage of the transverse drainage pipe or siltation at the bottom of the ditch, affecting drainage efficiency, requiring frequent manual cleaning and high maintenance costs. 2. Insufficient reinforcement stability: When the slope of the ditch bottom in soil sections is greater than 3%, relying solely on dry-laid rubble masonry, mortar-laid rubble masonry, or plastering for reinforcement can easily lead to rubble falling off and plaster cracking after long-term water erosion, resulting in poor durability of the reinforced structure. 3. Lack of ecological function: The existing ditches only focus on drainage function and do not take into account the needs of road ecological construction. The space above the ditch cover is not utilized, and additional ecological benefits such as greening and soil and water conservation cannot be achieved. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a roadbed drainage ditch structure that combines efficient drainage, stable reinforcement, and ecological greening.

[0004] The objective of this utility model is achieved through the following technical solution: A roadbed drainage ditch structure includes: a ditch body, a cover slab, precast blocks, a transverse drainage assembly, and a filter assembly; the ditch body is a cast-in-place concrete ditch with an open top; the cover slab is a C30 concrete precast cover slab, covering the top of the ditch body; the precast blocks are disposed on the side of the cover slab and fit against the side wall of the cover slab for fixing the cover slab; the transverse drainage assembly includes a drainage pipe and a collection ditch; the drainage pipe is installed on the inner wall of the ditch body, with one end connected to the collection ditch and the other end communicating with the inner side of the ditch body; the filter assembly is disposed at the top opening of the ditch body and located below the cover slab; the filter assembly includes a grid and a filter screen, the grid being detachably connected to the top opening of the ditch body; the filter screen is fixedly connected below the grid.

[0005] The cross-section of the main body of the ditch is rectangular or shallow saucer-shaped.

[0006] The inlet of the drainage pipe is wrapped with permeable geotextile, and the outlet is wrapped with galvanized wire mesh.

[0007] The filter screen is made of stainless steel, and the filter screen and the grille are detachably connected by bolts.

[0008] It also includes an ecological planting trough; the ecological planting trough is located on the upper surface of the ditch cover plate; the ecological planting trough extends along the length of the main body of the side ditch; the interior of the ecological planting trough is filled with planting soil; the thickness of the planting soil is 8-10cm.

[0009] The walls of the ecological planting trough are made of permeable concrete; the opening of the ecological planting trough is covered with an openable permeable cover; and the permeable cover has several permeable holes.

[0010] When the slope of the bottom of the main body of the ditch is greater than 3%, the bottom and inner wall of the main body of the ditch are provided with a reinforcement layer; the reinforcement layer includes dry-laid rubble or mortar-laid rubble of the base layer, and a geogrid placed on the base layer; the geogrid is closely attached to the base layer.

[0011] The inner wall of the ditch body corresponding to the wet section of the excavated road is also provided with drainage holes; a PVC pipe is inserted into the drainage hole; one end of the PVC pipe extends into the interior of the ditch body, and the other end extends into the interior of the roadbed slope, and the end of the PVC pipe located inside the roadbed slope is wrapped with permeable geotextile.

[0012] The mesh size of the grille is 1-2 cm; the mesh size of the filter is 0.3-0.5 cm.

[0013] It also includes a flow-guiding protrusion; the flow-guiding protrusion is located at the bottom of the main body of the side ditch; the flow-guiding protrusion extends along the water flow direction of the main body of the side ditch; the cross-sectional shape of the flow-guiding protrusion is triangular.

[0014] The beneficial effects of this utility model are: 1. Anti-clogging: Through the gradation filtration of the filter components with grilles and screens, it can effectively intercept large impurities and small particles of silt in the water flow, avoid siltation in the side ditches and blockage of the horizontal drain pipes, reduce the frequency of manual cleaning, and lower maintenance costs; moreover, the filter components are detachable, making cleaning or replacement convenient.

[0015] 2. Improved drainage efficiency: The guide protrusions can guide the water flow in an orderly manner, accelerate the water flow speed, and ensure smooth drainage of the side ditch.

[0016] 3. Enhanced stability: For road sections with a slope greater than 3%, a geogrid reinforcement layer is added to work in conjunction with the original dry-laid / mortar-laid rubble base layer to improve the scour resistance of the ditch, prevent damage to the reinforcement structure, and extend the service life of the ditch.

[0017] 4. Ecological function: The ecological planting troughs above the ditch cover can realize road greening, conserve water sources, improve the ecological environment along the road, meet the development needs of modern highway "ecological construction", and have both functionality and ecology. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] Figure 1 This is a structural diagram of the present invention. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0021] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. It should be noted that the terms "comprising," "including," or any other variations are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0023] like Figure 1 As shown, a roadbed drainage ditch structure includes: a ditch body 1, a ditch cover 2, a precast block 3, a transverse drainage component, a filter component, an ecological planting trough, and a flow guiding protrusion 7.

[0024] The main body 1 of the ditch is a cast-in-place concrete ditch with an open top; the cross-section of the main body 1 of the ditch is rectangular or shallow saucer-shaped; when the bottom slope of the main body 1 of the ditch is greater than 3%; the bottom and inner wall of the main body 1 of the ditch are provided with a reinforcement layer; the reinforcement layer includes dry-laid rubble or mortar-laid rubble as the base layer, and a geogrid placed above the base layer; the geogrid is tightly fitted to the base layer; the inner wall of the main body 1 corresponding to the wet section of the excavated road is also provided with a drainage hole; a PVC pipe is inserted into the drainage hole; one end of the PVC pipe extends into the interior of the main body 1 of the ditch, and the other end extends into the interior of the roadbed slope, and the end of the PVC pipe located inside the roadbed slope is wrapped with a permeable geotextile.

[0025] The ditch cover 2 is a C30 precast concrete cover slab, which is placed on top of the main body of the side ditch 1; The precast block 3 is disposed on the side of the trench cover 2 and is attached to the side wall of the trench cover 2 for fixing the trench cover 2. The transverse drainage assembly includes a drainage pipe 5 and a water collection ditch 4; the drainage pipe 5 is installed on the inner wall of the side ditch body 1, with one end connected to the water collection ditch 4 and the other end connected to the inner side of the side ditch body 1; the inlet of the drainage pipe 5 is wrapped with permeable geotextile and the outlet is wrapped with galvanized wire mesh.

[0026] The filter assembly is located at the top opening of the side ditch body 1 and below the cover plate 2; the filter assembly includes a grid and a filter screen 6, the grid is detachably connected to the top opening of the side ditch body 1; the filter screen 6 is fixedly connected to the bottom of the grid; the filter screen 6 is made of stainless steel and is detachably connected to the grid by bolts; the grid mesh size is 1-2cm; the filter screen 6 has a mesh size of 0.3-0.5cm.

[0027] The ecological planting trough is located on the upper surface of the ditch cover plate 2; the ecological planting trough extends along the length of the main body of the side ditch 1; the interior of the ecological planting trough is filled with planting soil; the thickness of the planting soil is 8-10cm; the wall of the ecological planting trough is made of permeable concrete; the opening of the ecological planting trough is covered with an openable permeable cover plate; the permeable cover plate has several permeable holes.

[0028] The mesh size of the grille is 1-2 cm; the mesh size of the filter is 0.3-0.5 cm.

[0029] The flow guiding protrusion 7 is located at the bottom of the side ditch body 1; the flow guiding protrusion 7 extends along the water flow direction of the side ditch body 1; the cross-sectional shape of the flow guiding protrusion 7 is triangular.

[0030] The working principle of this utility model: The main body of the ditch 1 is used for primary drainage. Water from one side of the mountain is discharged into the main body of the ditch 1 through the collection ditch 4 and the drainage pipe 5. Permeable geotextile and wire mesh are installed to prevent the drainage pipe 5 from being blocked. A filter component is installed at the opening at the top of the main body of the ditch 1, i.e. the water inlet, to prevent silt, mud and sand from clogging it. The ecological planting trough above the ditch cover can realize road greening, conserve water sources and improve the ecological environment along the road.

[0031] The scope of protection of this utility model is not limited to the technical solutions disclosed in the specific embodiments. Any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical essence of this utility model shall fall within the scope of protection of this utility model.

Claims

1. A roadbed drainage ditch structure, characterized in that, include: The ditch body (1), cover plate (2), precast block (3), transverse drainage component and filter component; the ditch body (1) is a cast-in-place concrete ditch with an open top; the cover plate (2) is a C30 concrete precast cover plate, which is placed on the top of the ditch body (1); the precast block (3) is set on the side of the cover plate (2) and fits against the side wall of the cover plate (2) for fixing the cover plate (2); the transverse drainage component includes a drain pipe (5) and a water collection ditch (4); the drain pipe (5) is installed on the inner wall of the ditch body (1), one end of which is connected to the water collection ditch (4), and the other end is connected to the inner side of the ditch body (1); the filter component is set at the top opening of the ditch body (1) and located below the cover plate (2); the filter component includes a grid and a filter screen (6), the grid is detachably connected to the top opening of the ditch body (1); the filter screen is fixedly connected to the bottom of the grid.

2. The roadbed drainage ditch structure according to claim 1, characterized in that: The cross-section of the main body of the ditch (1) is rectangular or shallow saucer-shaped.

3. The roadbed drainage ditch structure according to claim 1, characterized in that: The inlet of the drainage pipe (5) is wrapped with permeable geotextile, and the outlet is wrapped with galvanized wire mesh.

4. The roadbed drainage ditch structure according to claim 1, characterized in that: The filter screen (6) is made of stainless steel, and the filter screen (6) is detachably connected to the grille by bolts.

5. A roadbed drainage ditch structure according to claim 1, characterized in that: It also includes an ecological planting trough; the ecological planting trough is located on the upper surface of the ditch cover plate (2); the ecological planting trough extends along the length direction of the side ditch body (1); the interior of the ecological planting trough is filled with planting soil; the thickness of the planting soil is 8-10cm.

6. A roadbed drainage ditch structure according to claim 5, characterized in that: The walls of the ecological planting trough are made of permeable concrete; the opening of the ecological planting trough is covered with an openable permeable cover; and the permeable cover has several permeable holes.

7. A roadbed drainage ditch structure according to claim 1, characterized in that: The bottom and inner wall of the main body of the ditch (1) are provided with a reinforcement layer; the reinforcement layer includes dry-laid rubble or mortar-laid rubble of the base layer, and geogrid above the base layer; the geogrid is closely attached to the base layer.

8. A roadbed drainage ditch structure according to claim 1, characterized in that: The inner wall of the ditch body (1) corresponding to the wet section of the excavated road is also provided with a drainage hole; a PVC pipe is inserted into the drainage hole; one end of the PVC pipe extends into the interior of the ditch body (1), and the other end extends into the interior of the roadbed slope, and the end of the PVC pipe located inside the roadbed slope is wrapped with a permeable geotextile.

9. A roadbed drainage ditch structure according to claim 1, characterized in that: The mesh size of the grille is 1-2 cm; the mesh size of the filter is 0.3-0.5 cm.

10. A roadbed drainage ditch structure according to claim 1, characterized in that: It also includes a flow guiding protrusion (7); the flow guiding protrusion (7) is located at the bottom of the side ditch body (1); the flow guiding protrusion (7) extends along the water flow direction of the side ditch body (1); the cross-sectional shape of the flow guiding protrusion (7) is triangular.

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