Slope drainage device and slope structure

Abstract

The utility model discloses a side slope drainage device, which comprises a slope surface component, a drainage component and a drainage component, the slope surface component comprises a drainage tank arranged on a slope surface along the inclination direction of the slope surface and filter drainage planting units arranged on two sides of the drainage tank; the in-slope assembly comprises a torrent pipe inserted into the slope shoulder and an inclined pipe arranged in the slope body in the inclination direction of the slope surface, the bottom of the torrent pipe is sealed, the top of the torrent pipe is open, and the top of the inclined pipe is communicated with the lower middle portion of the torrent pipe; the slope toe assembly comprises a drainage ditch excavated at the slope toe, the bottom of the drainage groove is communicated to the drainage ditch, and the drainage ditch is communicated with the bottom of the inclined pipe through a connecting pipe; the water filtering and draining planting unit is at least provided with a blind pipe communicated to the drainage ditch, a drainage pipe communicated with the drainage groove and a water guide pipe communicated with the inclined pipe. On the basis that the slope drainage effect is guaranteed, rainwater can be utilized, the rainwater can be drained in time, and the slope soil body can be protected.

Description

Technical Field

[0001] The utility model relates to the field of slope drainage, and more specifically, to a slope drainage device and a slope structure. Background Art

[0002] The slope is a slope with a certain slope built on both sides of the roadbed to ensure the stability of the roadbed. Since water exerts dynamic pressure, hydrostatic pressure and physical and chemical effects on the slope, it may weaken the strength of the slope, causing the slope to become unstable and slide. Therefore, in order to reduce the adverse effects of water scouring, soil erosion and landslides, it is often necessary to design a slope drainage structure (device).

[0003] Most of the existing slope drainage devices directly discharge rainwater into the drainage ditch, and cannot reasonably utilize rainwater on the basis of ensuring the slope drainage effect. For example, in the utility model patent with publication number CN113550398A and name Slope Drainage Structure and Method, a slope drainage structure is disclosed, which slows down the water flow by setting a water stop plate, reduces the scouring force of rainwater on the slope surface soil and maintains the possibility of soil loss on the slope surface during the slope drainage process, thereby improving the drainage effect of the slope. However, the rainwater flowing down the slope is directly discharged along the drainage ditch quickly, and the rainwater cannot be reasonably utilized. For example, in the utility model patent with publication number CN110552419A and name A Slope Drainage Device, a slope drainage structure is disclosed. Although it uses magnetic force as a driving force and can automatically adjust the slope rainwater discharge according to the amount of rainfall without consuming other energy, the rainwater is directly discharged into the river below through the drainage pipe, and the rainwater cannot be reasonably utilized either. Utility Model Content

[0004] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described below.

[0005] Another object of the utility model is to provide a slope drainage device, which can utilize rainwater on the basis of ensuring the slope drainage effect, can not only discharge rainwater in time, but also play a protective role on the slope soil.

[0006] In order to achieve these purposes and other advantages according to the utility model, a slope drainage device is provided, comprising:

[0007] A slope component, comprising a drainage ditch arranged on the slope along the slope inclination direction and drainage and filtering planting units arranged on both sides of the drainage ditch;

[0008] The in-slope component includes a rapid flow pipe inserted into the slope shoulder and an inclined pipe arranged in the slope body along the slope inclination direction. The rapid flow pipe has a sealed bottom and an open top, and the top of the inclined pipe is connected to the middle and lower part of the rapid flow pipe;

[0009] A slope foot assembly, comprising a drainage ditch excavated at the slope foot, the bottom of the drainage ditch being connected to the drainage ditch, and the drainage ditch being connected to the bottom of the inclined pipe through a connecting pipe;

[0010] Wherein, the drainage and filtration planting unit at least has a blind pipe connected to the drainage ditch, a drainage pipe connected to the drainage groove, and a water guide pipe connected to the inclined pipe.

[0011] Preferably, the drainage and filtration planting unit includes a plurality of drainage and filtration sub-units, which are arranged in sequence from top to bottom along the inclination direction of the slope, and any drainage and filtration sub-unit includes a water storage tank and a planting box tightly arranged from top to bottom, the height of the water storage tank is lower than the height of the planting box, the planting box is provided with a blind pipe connected to the adjacent water storage tank, the bottom of the lowest planting box is provided with a blind pipe connected to the drainage ditch, a drainage pipe connected to the drainage ditch is provided on one side of any water storage tank close to the drainage ditch, a water guide pipe connected to the inclined pipe is provided in any water storage tank, and the water inlets of the drainage pipe and the water guide pipe are arranged higher than the blind pipe.

[0012] Preferably, the water inlet height of the water guide pipe is higher than the water inlet height of the drainage pipe.

[0013] Preferably, a fine sand layer, a fine crushed stone layer and a coarse crushed stone layer are sequentially arranged in the planting box from bottom to top, and the height ratio of the fine sand layer, the fine crushed stone layer and the coarse crushed stone layer is 3:4-6:2-3.

[0014] Preferably, the crushed stone particle size of the fine crushed stone layer is 5 to 15 mm, and the crushed stone particle size of the coarse crushed stone layer is 20 to 40 mm.

[0015] Preferably, a group of blind pipes is arranged near the upper water storage tank of the planting box, and one group of blind pipes is arranged facing the fine gravel layer and the fine sand and dust respectively, and the blind pipe of the planting box near the lower water storage tank is arranged facing the fine sand layer.

[0016] Preferably, a plurality of water storage tanks arranged on the top of the slope are connected to form a long water tank, the long water tank and the drainage tank form a T-shaped structure, and a drainage pipe is provided at the long water tank directly opposite to the drainage tank.

[0017] Preferably, a filter screen is provided on the top of the rapid flow pipe.

[0018] The utility model further claims to protect a slope structure, wherein the slope structure comprises the slope drainage device.

[0019] The utility model at least has the following beneficial effects:

[0020] First, the slope drainage device provided by the utility model comprises a slope surface component, an inner slope component and a slope foot component, wherein the slope foot component comprises a drainage ditch, wherein the slope surface component is used to drain the rainwater on the slope surface into the drainage ditch, and the inner slope component is used to drain the rainwater on the slope shoulder into the drainage ditch, thereby achieving the separate discharge of the rainwater on the slope surface and the rainwater on the slope shoulder, and improving the efficiency of slope drainage;

[0021] Secondly, the slope component of the slope drainage device provided by the utility model includes both a path directly connected to the drainage ditch and a path indirectly connected to the drainage ditch, thereby realizing a multi-path discharge mode of slope rainwater and further improving the efficiency of slope drainage;

[0022] Third, multiple slope drainage devices provided by the utility model are continuously arranged along the extension direction of the slope, that is, the slope drainage device provided by the utility model is arranged on a section of the slope, and each section of the slope has a drainage trough and filter and drainage planting units arranged on both sides of the drainage trough. The filter and drainage planting units use rainwater to plant slope protection plants and reasonably drain rainwater into the drainage ditch. On the basis of ensuring the drainage effect of the slope, rainwater is utilized, which can not only discharge rainwater in time, but also protect the slope soil.

[0023] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the slope drainage device described in one technical solution of the utility model;

[0025] Figure 2 This is a schematic diagram of the slope layout described in another technical solution of the utility model. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0027] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0028] like Figure 1 , 2 As shown, the utility model provides a slope drainage device, comprising:

[0029] The slope component includes a drainage groove 15 arranged on the slope along the slope inclination direction and drainage and filtering planting units arranged on both sides of the drainage groove 15;

[0030] The slope internal component includes a rapid flow pipe 4 inserted into the slope shoulder 3 and an inclined pipe 5 arranged in the slope body 1 along the slope inclination direction. The rapid flow pipe 4 has a sealed bottom and an open top. The top of the inclined pipe 5 is connected to the middle and lower part of the rapid flow pipe 4.

[0031] A slope foot assembly, comprising a drainage ditch 7 excavated at the slope foot 2, the bottom of the drainage groove 15 is connected to the drainage ditch 7, and the drainage ditch 7 is connected to the bottom of the inclined pipe 5 through a connecting pipe 6;

[0032] The drainage and filtration planting unit at least comprises a blind pipe 92 connected to the drainage ditch 7 , a drainage pipe 142 connected to the drainage groove 15 , and a water guide pipe 11 connected to the inclined pipe 5 .

[0033] In the above technical solution, the slope drainage device is arranged in sequence along the extension direction of the slope. The length of the slope drainage device along the extension direction of the slope is 5 to 10 m. The slope drainage device includes a slope surface component, an inner slope component and a slope foot component, wherein the slope foot component includes a drainage ditch 7 excavated on the slope foot 2, the slope surface component is used to discharge rainwater on the slope surface to the drainage ditch 7, and the inner slope component is used to discharge rainwater on the slope shoulder 3 to the drainage ditch 7, and the rainwater is finally discharged from the slope through the drainage ditch 7.

[0034] In the above technical solution, the slope component includes a drainage ditch 15 arranged on the slope along the inclination direction of the slope and a filter drainage planting unit arranged on both sides of the drainage ditch 15. The filter drainage planting unit is arranged in different areas on both sides of the drainage ditch 15 and close to the drainage ditch 15. On the one hand, the slope rainwater is discharged in different areas, and on the other hand, the slope is divided into different planting areas to plant different slope protection plants 13, thereby realizing the diversification of the slope protection plants 13. The filter drainage planting unit has a blind pipe 92 connected to the drainage ditch 7. A part of the slope rainwater is directly discharged into the drainage ditch through the filter drainage planting unit, forming a first discharge path for the slope rainwater. The first discharge The path is located on the slope; the drainage planting unit also has a drainage pipe 142 connected to the drainage groove 15. When the accumulation of rainwater in the drainage planting unit reaches a first preset value, part of the rainwater accumulated in the drainage planting unit is discharged into the drainage ditch 7 through the drainage groove 15, forming a second discharge path for slope rainwater, which is also located on the slope; the drainage planting unit also has a water guide pipe 11 connected to the inclined pipe 5. When the accumulation of rainwater in the drainage planting unit reaches a second preset value, part of the rainwater accumulated in the drainage planting unit is discharged into the drainage ditch 7 through the inclined pipe 5, forming a third discharge path for slope rainwater, which is located inside the slope 1. The slope rainwater is provided with multiple discharge paths, which, on the one hand, improves the discharge efficiency of the slope rainwater, and on the other hand, creates a planting environment for the slope protection plants 13 in the drainage planting unit.

[0035] In the above technical scheme, the in-slope component includes a torrent pipe 4 inserted into the slope shoulder 3 and an inclined pipe 5 arranged in the slope body 1. The top of the inclined pipe 5 is connected to the middle and lower part of the torrent pipe 4. The torrent pipe 4 has the function of temporarily storing rainwater. Therefore, the bottom of the torrent pipe 4 is sealed and the top is provided with a water inlet. Preferably, the water inlet of the torrent pipe 4 is arranged with the same diameter as the torrent pipe 4. The volume of the torrent pipe 4 can be designed according to the local rainfall. Generally speaking, the greater the rainfall in the area, the larger the volume of the torrent pipe 4. The rainwater on the slope shoulder is discharged into the drainage ditch 7 through the torrent pipe 4, the inclined pipe 5 and the connecting pipe 6 in turn. There are two reasons why the shoulder and the slope surface rainwater are discharged into the drainage ditch 7 through the in-slope component and the slope surface component respectively. First, the amount of rainwater on the shoulder is large and needs to be directly discharged into the drainage ditch 7 to obtain a faster discharge speed. Part of the slope surface rainwater needs to be used in the planting of slope protection plants 13, and the discharge speed of the slope surface rainwater to the drainage ditch 7 needs to be controlled.

[0036] In the above technical solution, the number of the torrent pipes 4, the inclined pipes 5 and the connecting pipes 6 is corresponding. For areas with particularly heavy rainfall, a plurality of the torrent pipes 4, the inclined pipes 5 and the connecting pipes 6 may be provided. In order to facilitate the connection between the inclined pipes 5 and the torrent pipes 4, the torrent pipes 4 are preferably positioned close to the slope 1. The drainage and filtration planting unit is provided with a plurality of water guide pipes 11 connected to different inclined pipes 5.

[0037] In the above technical solution, when encountering rainy weather, the rainwater on the slope shoulder is quickly discharged into the drainage ditch 7 through the rapid flow pipe 4 and the inclined pipe 5. Part of the rainwater on the slope is used by the drainage planting unit, and the other part is directly or indirectly discharged into the drainage ditch, which not only ensures the efficiency of slope drainage, but also can utilize part of the rainwater to play the role of slope protection.

[0038] like Figure 1 and Figure 2 It can be seen that in one of the technical solutions, the drainage and filtration planting unit includes a plurality of drainage and filtration sub-units, which are arranged in sequence from top to bottom along the inclination direction of the slope, and any drainage and filtration sub-unit includes a water storage tank 8 and a planting box 10 which are closely arranged from top to bottom, and the height of the water storage tank 8 is lower than the height of the planting box 10, and the planting box 10 is provided with a blind pipe connected to the adjacent water storage tank 8, and the bottom of the bottom planting box 10 is provided with a blind pipe 92 connected to the drainage ditch, and a drainage pipe 142 connected to the drainage ditch 15 is provided on one side of any water storage tank 8 close to the drainage ditch 15, and a water guide pipe 11 connected to the inclined pipe is provided in any water storage tank 8, and the water inlet of the drainage pipe and the water guide pipe is higher than the blind pipe setting.

[0039] In the above technical solution, the drainage planting unit is arranged in modules along the inclination direction of the slope, that is, the drainage planting unit includes a plurality of drainage planting sub-units arranged in sequence along the inclination direction of the slope, and adjacent drainage planting sub-units are closely arranged to prevent rainwater from entering the slope soil through the gaps between the drainage planting sub-units.

[0040] In the above technical scheme, the drainage and filtration planting sub-unit includes a closely arranged water storage tank 8 and a planting box 10. The water storage tank 8 and the planting box 10 are arranged on the slope in an implementation manner using existing technology. One implementation manner is as follows: a plurality of anchor rods inserted into the slope are arranged at the bottom of the water storage tank 8 and the planting box 10. The planting box 10 is used to plant slope protection plants 13. After the slope protection plants 13 are planted, part of the rainwater can be blocked. The planting box 10 is provided with a blind pipe connected to the adjacent water storage tank 8. In order to avoid the blind pipe from being blocked, a filter screen should be arranged at the water inlet and outlet of the blind pipe. In order to distinguish The blind pipe located near the upper water storage tank 8 of the planting box 10 is marked as 91, which is used to allow rainwater in the upper water storage tank 8 to infiltrate the planting box 10. The blind pipe located near the lower water storage tank 8 of the planting box 10 is marked as 92, which is used to discharge excess rainwater in the planting box 10 to the lower water storage tank 8. Multiple drainage and filtration planting sub-units are arranged to eventually discharge the slope rainwater into the drainage ditch 7. Preferably, the wall of the planting box 10 has a certain thickness to set the blind pipe. Generally speaking, the diameter of the blind pipe is set according to the local rainfall. The greater the rainfall in the area, the larger the diameter of the blind pipe.

[0041] In the above technical scheme, the water storage tank 8 on both sides of the drainage tank 15 is provided with a drainage pipe 142 connected to the drainage tank 15, and the water pipe 11 connected to the inclined pipe 5 is provided in the water storage tank 8 to prevent excessive water accumulation in the water storage tank 8. The water inlet heights of the drainage pipe 142 and the water pipe 11 should be higher than the blind pipe setting, that is, rainwater in the water storage tank 8 is preferentially used for planting slope protection plants 13 in the planting box 10. When the water level of the water storage tank 8 is higher than the water inlet of the drainage pipe 142 and the water pipe 11, it is discharged through the drainage pipe 142 and the water pipe 11 in time.

[0042] In one of the technical solutions, the water inlet height of the water guide pipe 11 is higher than the water inlet height of the drainage pipe 142. When the water level in the water storage tank 8 reaches a first preset value, rainwater is preferentially discharged from the drainage trough 15 set on the slope to the drainage ditch through the drainage pipe 142. When the water level in the water storage tank 8 reaches a second preset value, rainwater can also be discharged from the inclined pipe 5 set in the slope to the drainage ditch through the water guide pipe 11.

[0043] In one of the technical solutions, a fine sand layer, a fine crushed stone layer and a coarse crushed stone layer are sequentially arranged in the planting box 10 from bottom to top, and the height ratio of the fine sand layer, the fine crushed stone layer and the coarse crushed stone layer is 3:4-6:2-3. The coarse crushed stone layer is conducive to the rapid penetration of rainwater into the lower layer, the fine crushed stone layer is conducive to the fixation of the slope protection plants 13, and the fine sand layer is conducive to the extension of the root system of the slope protection plants 13. The fine sand layer has a good air permeability layer. When the rainwater in the upper water storage tank 8 passes through the fine sand layer and the fine crushed stone layer, it will not cause root rot. At the same time, the fine sand layer and the fine crushed stone layer also play a certain filtering role.

[0044] In one of the technical solutions, the crushed stone particle size of the fine crushed stone layer is 5-15 mm, and the crushed stone particle size of the coarse crushed stone layer is 20-40 mm. The fine crushed stone layer is used to fix the slope protection plants 13, and the coarse crushed stone layer is conducive to the rapid infiltration of rainwater into the lower layer and downward discharge through the blind pipe.

[0045] In one of the technical solutions, a group of blind pipes are arranged near the upper water storage tank of the planting box 10, and one group of blind pipes are arranged facing the fine gravel layer and the fine sand and dust respectively, so as to speed up the downward discharge of rainwater in the planting box 10 and avoid excessive water accumulation in the planting box 10 due to heavy rain. The blind pipe of the planting box 10 near the lower water storage tank 8 is arranged facing the fine sand layer to ensure the moisture of the roots of the slope protection plants 13.

[0046] In one of the technical solutions, a plurality of water storage tanks 8 arranged at the top of the slope are connected to form a long water tank 81, and the long water tank 81 forms a T-shaped structure with the drainage tank 15. A drainage pipe 141 is provided at the long water tank 81 directly opposite the drainage tank 15. The continuous arrangement of the water storage tanks 8 at the top of the slope can isolate the rainwater on the slope and the rainwater on the shoulder of the slope, and discharge them into the drainage ditch 7 through different paths.

[0047] In one of the technical solutions, a filter net is provided on the top of the rapid flow pipe 4 to prevent debris on the slope shoulder from entering the rapid flow pipe 4 and causing blockage of the rapid flow pipe 4.

[0048] The utility model further claims to protect a slope structure, wherein the slope structure comprises the slope drainage device, and the inclined pipe, the connecting pipe and the rapid flow pipe can be pre-buried in the slope structure during construction.

[0049] As described above, according to the present invention, the present invention at least includes the following beneficial effects:

[0050] First, the slope drainage device provided by the utility model comprises a slope surface component, an inner slope component and a slope foot component, wherein the slope foot component comprises a drainage ditch, wherein the slope surface component is used to drain the rainwater on the slope surface into the drainage ditch, and the inner slope component is used to drain the rainwater on the slope shoulder into the drainage ditch, thereby achieving the separate discharge of the rainwater on the slope surface and the rainwater on the slope shoulder, and improving the efficiency of slope drainage;

[0051] Secondly, the slope component of the slope drainage device provided by the utility model includes both a path directly connected to the drainage ditch and a path indirectly connected to the drainage ditch, thereby realizing a multi-path discharge mode of slope rainwater and further improving the efficiency of slope drainage;

[0052] Third, multiple slope drainage devices provided by the utility model are continuously arranged along the extension direction of the slope, that is, the slope drainage device provided by the utility model is arranged on a section of the slope, and each section of the slope has a drainage groove and a drainage and filtration planting unit arranged on both sides of the drainage groove. The drainage and filtration planting unit not only uses rainwater to plant slope protection plants, but also reasonably drains rainwater into the drainage ditch. On the basis of ensuring the drainage effect of the slope, the rainwater is utilized, which can not only discharge the rainwater in time, but also protect the slope soil;

[0053] Fourthly, the slope drainage device and slope structure provided by the utility model do not require any power drive and can meet the slope drainage requirements by relying on their own structure.

[0054] The number of devices and processing scales described here are used to simplify the description of the utility model. The application, modification and variation of the slope drainage device and slope structure of the utility model are obvious to those skilled in the art.

[0055] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described here.

Claims

1. Slope drainage device, characterized in that: include: A slope component, comprising a drainage ditch arranged on the slope along the slope inclination direction and drainage and filtering planting units arranged on both sides of the drainage ditch; The in-slope component includes a rapid flow pipe vertically inserted into the slope shoulder and an inclined pipe arranged in the slope body along the slope inclination direction. The rapid flow pipe has a sealed bottom and an open top, and the top of the inclined pipe is connected to the middle and lower part of the rapid flow pipe; A slope foot assembly, comprising a drainage ditch excavated downward at the slope foot, the bottom of the drainage ditch being connected to the drainage ditch, and the drainage ditch being connected to the bottom of the inclined pipe through a connecting pipe; Wherein, the drainage and filtration planting unit at least has a blind pipe connected to the drainage ditch, a drainage pipe connected to the drainage groove, and a water guide pipe connected to the inclined pipe.

2. The slope drainage device according to claim 1, characterized in that: The drainage and filtration planting unit includes a plurality of drainage and filtration sub-units, which are arranged in sequence from top to bottom along the inclination direction of the slope. Any drainage and filtration sub-unit includes a water storage tank and a planting box which are closely arranged from top to bottom. The height of the water storage tank is lower than the height of the planting box. The planting box is provided with a blind pipe connected to the adjacent water storage tank. The bottom of the lowest planting box is provided with a blind pipe connected to the drainage ditch. A drainage pipe connected to the drainage ditch is provided on one side of any water storage tank close to the drainage ditch. A water guide pipe connected to the inclined pipe is provided in any water storage tank. The water inlets of the drainage pipe and the water guide pipe are arranged higher than the blind pipe.

3. The slope drainage device according to claim 2, characterized in that: The water inlet height of the water guide pipe is higher than the water inlet height of the drainage pipe.

4. The slope drainage device according to claim 3, characterized in that: A fine sand layer, a fine crushed stone layer and a coarse crushed stone layer are arranged in sequence from bottom to top in the planting box, and the height ratio of the fine sand layer, the fine crushed stone layer and the coarse crushed stone layer is 3:4-6:2-3.

5. The slope drainage device according to claim 4, characterized in that: The crushed stone particle size of the fine crushed stone layer is 5 to 15 mm, and the crushed stone particle size of the coarse crushed stone layer is 20 to 40 mm.

6. The slope drainage device according to claim 5, characterized in that: A group of blind pipes is arranged near the upper water storage tank of the planting box, and one group of blind pipes is arranged facing the fine gravel layer and the fine sand and dust respectively, and the blind pipe of the planting box near the lower water storage tank is arranged facing the fine sand layer.

7. The slope drainage device according to claim 6, characterized in that: A plurality of water storage tanks arranged on the top of the slope are connected to form a long water tank, the long water tank and the drainage tank form a T-shaped structure, and a drainage pipe is arranged at the position of the long water tank facing the drainage tank.

8. The slope drainage device according to claim 7, characterized in that: A filter screen is arranged on the top of the rapid flow pipe.

9. A slope structure, characterized in that: The slope structure includes the slope drainage device described in any one of claims 1 to 8.

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