Grass planting ditch drainage structure

Abstract

The utility model discloses a grassed ditch drainage structure which comprises side slopes, a drainage channel and a drainage channel, the interception area is detachably connected with the side slope so as to prevent garbage from entering the grass planting ditch; the grass planting ditch is sequentially provided with first geotechnical cloth, slope protection bricks, a broken stone hardcore, a sand filter layer, a filler layer and a planting layer from bottom to top. Suspended matters and heavy metal pollutants in rainwater can be effectively filtered and adsorbed through the interception area and the filler layer, water flow scouring can be effectively resisted through the first geotechnical cloth and the slope protection bricks, the problems of collapse and sedimentation can be effectively solved, and the service life of the grassed swale is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of grassed ditch technology, and in particular to a grassed ditch drainage structure. Background Technology

[0002] The existing grassed swales have a simple filler layer structure, which is insufficient in filtering and adsorbing pollutants in rainwater. They cannot effectively remove pollutants such as suspended solids and heavy metals, which may cause the discharged water to pollute the receiving water body. Moreover, the swale wall has insufficient protective measures and is prone to collapse under long-term water flow, affecting the normal function and service life of the grassed swale. Based on this, a grassed swale drainage structure was designed. Utility Model Content

[0003] To overcome at least one of the defects described in the prior art, this utility model provides a grassed ditch drainage structure. Through the interception zone and filler layer, it can effectively filter and adsorb suspended solids and heavy metal pollutants in rainwater, and through the first geotextile and slope protection bricks, it can effectively resist water erosion and prevent collapse and settlement problems, thus extending the service life of the grassed ditch.

[0004] The technical solution adopted by this utility model to solve its problem is:

[0005] A grass-planted ditch drainage structure includes: a slope, with grass-planted ditches formed between the slopes; an interception zone, which is detachably connected to the slope to prevent garbage from entering the grass-planted ditch; wherein, the grass-planted ditch is provided with, from bottom to top, a first geotextile, slope protection bricks, a gravel cushion layer, a sand filter layer, a filler layer, and a planting layer.

[0006] By adopting the above scheme, the interception zone and filler layer can effectively filter and adsorb suspended solids and heavy metal pollutants in rainwater, and the first geotextile and slope protection bricks can effectively resist water erosion and prevent collapse and settlement problems, thus extending the service life of the grassed swale.

[0007] Furthermore, the slope is concave inward to form a groove, and the interception area has a locking block that is inserted into the groove.

[0008] By adopting the above solution, the detachable effect is achieved through the cooperation of the card slot and the card block.

[0009] Furthermore, the first geotextile is fixed to the wall of the grassed ditch by rivets or by adhesive.

[0010] By adopting the above scheme, a fixing effect is achieved, and the first geotextile plays a role in preliminary filtration and preventing soil erosion.

[0011] Furthermore, the slope protection bricks are connected by cement mortar.

[0012] By adopting the above solution, the connection is more secure, providing stable protection for the trench wall and preventing collapse.

[0013] Furthermore, the crushed stone cushion layer is laid on top of the slope protection bricks. The crushed stone cushion layer uses crushed stone with a particle size of 2-5 cm and a thickness of 10-15 cm.

[0014] By adopting the above scheme, a stable foundation is provided, and drainage is facilitated.

[0015] Furthermore, a permeable pipe is laid inside the crushed stone cushion layer, and a second geotextile is wrapped around the permeable pipe.

[0016] By adopting the above scheme, a second geotextile is installed to prevent mud and sand from entering the permeable pipe, and the two ends of the permeable pipe are connected to the inlet and outlet respectively, thereby accelerating the drainage speed.

[0017] Furthermore, the sand filter layer is laid on top of the crushed stone cushion layer, the sand filter layer is made of fine sand, and the thickness of the sand filter layer is 5-10 cm.

[0018] By adopting the above scheme, the sand filter layer can further filter fine particles in rainwater and work in conjunction with the permeable pipe.

[0019] Furthermore, the filler layer includes, from bottom to top, a volcanic rock particle layer, an activated carbon layer, and a soil amendment layer.

[0020] By adopting the above scheme, the filtering effect is achieved through multiple layers.

[0021] Furthermore, the interception zone employs a filter.

[0022] By adopting the above solution, the filtration effect is achieved by using a filter screen. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the planar structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the filler layer in an embodiment of the present invention;

[0025] Figure 3 for Figure 1 Enlarged view of point A;

[0026] The meanings of the labels in the attached drawings are as follows: 1. Slope; 11. Vegetated swale; 12. Trench; 2. Interception zone; 21. Block; 3. First geotextile; 4. Slope protection brick; 5. Crushed stone cushion layer; 51. Permeable pipe; 6. Sand filter layer; 7. Filler layer; 71. Volcanic rock particle layer; 72. Activated carbon layer; 73. Soil amendment layer; 8. Planting layer. Detailed Implementation

[0027] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.

[0028] To facilitate understanding of the embodiments of this utility model, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0031] See Figures 1-3 This utility model discloses a drainage structure for a grassed ditch 11, comprising a slope 1 and an interception zone 2, with the slope 1 forming a grassed ditch 11. The interception zone 2 is detachably connected to the slope 1 to prevent garbage from entering the grassed ditch 11. The grassed ditch 11, from bottom to top, is provided with a first geotextile 3, slope protection bricks 4, a crushed stone cushion layer 5, a sand filter layer 6, a filler layer 7, and a planting layer 8. The interception zone 2 and the filler layer 7 effectively filter and adsorb suspended solids and heavy metal pollutants in rainwater, while the first geotextile 3 and the slope protection bricks 4 effectively resist water erosion and prevent collapse and settlement, extending the service life of the grassed ditch 11.

[0032] In this embodiment, the interception zone 2 uses a filter screen to achieve the filtering effect.

[0033] The slope 1 is recessed inward to form a groove 12, and the interception area 2 has a block 21. The block 21 is inserted into the groove 12, and the detachable effect is achieved through the cooperation between the groove 12 and the block 21.

[0034] In this embodiment, the first geotextile 3 is fixed to the ditch wall of the grass ditch 11 by rivets or by adhesive to achieve a fixing effect, and the first geotextile 3 plays a role in preliminary filtration and preventing soil loss.

[0035] In this embodiment, the slope protection bricks 4 are connected by cement mortar, which makes the connection more secure, provides stable protection for the ditch wall, and prevents collapse.

[0036] In this embodiment, the crushed stone cushion layer 5 is laid on top of the slope protection bricks 4. The crushed stone cushion layer 5 uses crushed stone with a particle size of 2-5 cm and a thickness of 10-15 cm, providing a stable foundation and facilitating drainage. A permeable pipe 51 is laid inside the crushed stone cushion layer 5, and a second geotextile is wrapped around the permeable pipe 51. The second geotextile prevents mud and sand from entering the permeable pipe 51, and the two ends of the permeable pipe 51 are connected to the inlet and outlet respectively to accelerate the drainage speed.

[0037] In this embodiment, the sand filter layer 6 is laid on top of the gravel cushion layer 5. The sand filter layer 6 is made of fine sand and has a thickness of 5-10 cm. The sand filter layer 6 can further filter fine particles in rainwater and works in conjunction with the permeable pipe 51.

[0038] In this embodiment, the filler layer 7 comprises, from bottom to top, a volcanic rock particle layer 71, an activated carbon layer 72, and a soil amendment layer 73, achieving a filtration effect through multiple layers. The volcanic rock particle layer 71 has a large specific surface area, capable of adsorbing some pollutants in rainwater. The activated carbon layer 72 effectively adsorbs harmful substances such as heavy metals. The soil amendment layer 73 is composed of leaf mold, peat moss, and a suitable amount of organic fertilizer, providing favorable soil conditions for plant growth.

[0039] In this embodiment, the planting layer 8 can be planted with a variety of plants, such as herbaceous plants with well-developed root systems and wetland plants with water purification capabilities.

[0040] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A grass-planting ditch drainage structure, characterized in that, include: Slopes, with grassed ditches formed between the slopes; An interception zone, which is detachably connected to the slope, to prevent garbage from entering the grassed ditch; The grassed swale is provided with, from bottom to top, a first geotextile, slope protection bricks, a crushed stone cushion layer, a sand filter layer, a filler layer and a planting layer.

2. The grass-planting ditch drainage structure according to claim 1, characterized in that, The slope is concave inward to form a groove, and the interception area has a locking block that is inserted into the groove.

3. The grass-planting ditch drainage structure according to claim 2, characterized in that, The first geotextile is fixed to the wall of the grassed ditch by rivets or by adhesive.

4. The grass-planting ditch drainage structure according to claim 3, characterized in that, The slope protection bricks are connected by cement mortar.

5. The grass-planting ditch drainage structure according to claim 4, characterized in that, The crushed stone cushion layer is laid on top of the slope protection bricks. The crushed stone cushion layer uses crushed stone with a particle size of 2-5 cm and a thickness of 10-15 cm.

6. The grass-planting ditch drainage structure according to claim 5, characterized in that, A permeable pipe is laid inside the crushed stone cushion layer, and a second geotextile is wrapped around the permeable pipe.

7. The grass-planting ditch drainage structure according to claim 6, characterized in that, The sand filter layer is laid on top of the crushed stone cushion layer. The sand filter layer is made of fine sand and has a thickness of 5-10 cm.

8. The grass-planting ditch drainage structure according to claim 7, characterized in that, The filler layer includes, from bottom to top, a volcanic rock particle layer, an activated carbon layer, and a soil amendment layer.

9. The grass-planting ditch drainage structure according to claim 8, characterized in that, The interception zone uses a filter.

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