CN219621905U - Sponge type ecological grass planting ditch - Google Patents

Abstract

The utility model relates to the technical field of grass planting ditches, in particular to a sponge type ecological grass planting ditch, which comprises a ditch body, wherein the ditch body comprises a planting soil layer, a sand layer, a gravel layer and a raw soil ramming layer which are sequentially arranged from a surface layer to an inner layer, vegetation is planted on the planting soil layer, a water outlet pipe is buried in the gravel layer, the water outlet pipe is arranged along the length direction of the ditch body, a plurality of overflow ports are formed in the side wall of the ditch body, the overflow ports are connected with the water outlet pipe through pipelines, a plurality of water blocking sills are arranged on the ditch body along the length direction, two ends of each water blocking sills are connected with the inner wall of the ditch body, and the overflow ports are higher than the top of each water blocking sills. This grass planting ditch can improve the purifying effect of vegetation to rivers, also can in time drain when the water level is higher.

Description

Sponge type ecological grass planting ditch

Technical Field

The utility model relates to the technical field of grass planting ditches, in particular to a sponge type ecological grass planting ditch.

Background

The sponge city is a new generation city rain and flood management concept, and the city has good elasticity in adapting to environmental changes and responding to natural disasters caused by rainwater, can effectively control the runoff of the rainwater, and realizes natural accumulation, natural permeation and natural purification. The method is particularly applied to urban roads, the water-permeable pavement of sidewalks, auxiliary parking lots and squares is implemented in proper municipal road engineering, the road cross section is reasonably arranged, the submerged green belt and the rainwater regulation and storage tank are properly built, the infiltration amount of surface water is increased, and the water collecting function of the road is exerted to the greatest extent.

The grass planting ditch refers to a surface ditch planted with vegetation, can collect, convey and discharge runoff rainwater, has a certain rainwater purification effect, and can be used for connecting other single facilities, urban rainwater pipe canal systems and out-of-standard rainwater runoff discharge systems.

The patent of the utility model with the publication number of CN207484629U discloses a sponge city ecological grass planting ditch, which comprises a ditch body, wherein the ditch body is sequentially provided with an aquifer, a covering layer, a planting soil layer, a sand layer and a gravel layer from top to bottom, the periphery of the pebble covering layer is provided with an overflow pipe, the gravel layer is provided with a flow through pipe, and the flow through pipe is communicated with an underground reservoir. This structure can play the purifying effect to water to a certain extent, but inflow grass planting ditch's water still can ooze down fast, flows into underground cistern through the cross flow pipe, and vegetation is relatively poor to the purifying effect of rivers.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, and provides a sponge type ecological grass planting ditch, which can improve the purifying effect of vegetation on water flow and can drain water in time when the water level is higher.

The utility model provides a sponge type ecological grass planting ditch, which comprises a ditch body, wherein the ditch body comprises a planting soil layer, a sand layer, a gravel layer and a raw soil ramming layer which are sequentially arranged from a surface layer to an inner layer, vegetation is planted on the planting soil layer, a water outlet pipe is buried in the gravel layer, the water outlet pipe is arranged along the length direction of the ditch body, a plurality of overflow ports are formed in the side wall of the ditch body and are connected with the water outlet pipe through pipelines, a plurality of water blocking terraces are arranged on the ditch body along the length direction, two ends of the water blocking terraces are connected with the inner wall of the ditch body, and the overflow ports are higher than the top of the water blocking terraces.

By arranging a plurality of water blocking sills in the ditch body, the water blocking sills can block and buffer water flow in the ditch body, so that the flow speed of the water flow is reduced, the water flow purifying effect of vegetation is improved, and the problem of loss of vegetation and soil layers caused by too high flow speed of the water flow is solved; through set up overflow mouth and the outlet pipe of being connected with the overflow mouth on the ditch body lateral wall, when the water level is higher, rivers accessible overflow mouth inflow outlet pipe prevent the internal rivers of ditch to the road surface.

Further, a water through hole is formed in the top of the water blocking sill.

The water flows through the water through hole of the water blocking sill, so that the water blocking sill has certain overcurrent capacity and the water level is prevented from rising too fast.

Further, the height of the water blocking sill is not lower than one third of the depth of the ditch body.

The enough water blocking sill height can improve the water blocking capability of the water blocking sill, can also better support the inner wall of the ditch body, ensures the stability of the ditch body structure and the pavement structure,

further, geotextiles are arranged on the upper surface and the lower surface of the gravel layer.

The geotextile can prevent the stone in the gravel layer from losing, maintain the structural functional integrity of the ditch body, and simultaneously do not influence the infiltration of moisture.

Further, a plurality of water seepage holes are formed in the pipe wall of the water outlet pipe.

For areas with more rainwater, if the overflow port cannot completely avoid water in the ditch body from flowing to the road surface, the problem that the water in the ditch body overflows to the road surface can be solved by arranging water seepage holes on the pipe wall of the water outlet pipe.

Further, the height of the water outlet pipe is higher than the bottom of the planting soil layer.

Guarantee that the height of outlet pipe is higher than planting soil layer's bottom, can avoid rivers to get into behind the ditch body and flow away through the infiltration hole of outlet pipe rapidly, be favorable to improving the purifying effect of vegetation root system to water.

Further, a filtering structure is arranged on the overflow port.

The filter structure is arranged at the overflow port to avoid the blockage caused by the entry of impurities into the permeation tube and the water outlet tube.

In some embodiments, the outside of the ditch body is connected with the road surface, and an impermeable film is arranged between the ditch body and the road surface.

The anti-seepage film can prevent water in the ditch from penetrating under the road surfaces at two sides to influence the stability of the road surface structure.

Further, both sides of the ditch body are connected with the road surface, an abutment for connecting the road surfaces at both sides is arranged in the ditch body, and a culvert is arranged at the bottom of the abutment.

Through set up the abutment in constructing the body for construct the body and be connected on road surface, guarantee the traffic demand on road surface, also play the effect of buffering that blocks water simultaneously, set up the culvert and make the internal rivers of ditch pass through.

Further, the two sides of the ditch body are provided with protective rails.

The protective railing is arranged to prevent pedestrians and vehicles from falling into the ditch.

The beneficial effects of the utility model are as follows: according to the utility model, the water blocking sill is arranged in the ditch body, so that the water flow in the ditch body can be blocked and buffered, the flow speed of the water flow is reduced, the water purification effect of vegetation on the water flow is improved, and the problem of loss of vegetation and soil layers caused by too high flow speed of the water flow is solved; through set up overflow mouth and the outlet pipe of being connected with the overflow mouth on the ditch body lateral wall, when the water level is higher, rivers accessible overflow mouth inflow outlet pipe prevent the internal rivers of ditch to the road surface.

Drawings

FIG. 1 is a cross-sectional view of the present utility model;

FIG. 2 is a top view of the present utility model;

FIG. 3 is a schematic view of the structure of the water outlet pipe of the present utility model;

fig. 4 is a schematic structural view of the protective rail according to the present utility model.

Reference numerals: a planting soil layer 1; a sand layer 2; a gravel layer 3; geotextile 301; a raw soil ramming layer 4; a ditch body 5; a water blocking sill 6; a water passage port 7; an overflow port 8; a filtering structure 9; a pipe 10; a water outlet pipe 11; a weep hole 111; a barrier film 12; a bridge abutment 13; a culvert 14; a guard rail 15; road surface 16.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1, the grass planting ditch is arranged between two roads, water on the roads can flow into the grass planting ditch, the drainage pressure of hard ground is reduced, flooding is avoided, an impermeable membrane 12 is arranged between two sides of the ditch body 5 and the road surface 16, and the impermeable membrane 12 is arranged to prevent water from penetrating under the road surface 16 at two sides, so that the structural stability of the road surface 16 is avoided being influenced.

This grass planting ditch includes the ditch body 5, and the ditch body 5 includes planting soil layer 1, sand layer 2, gravel layer 3, the former soil ramming layer 4 that set gradually by top layer to inlayer, and the compactness of former soil ramming layer 4 is not less than 90%, sets gradually sand layer 2, gravel layer 3, former soil ramming layer 4 and guarantees the looseness and the gas permeability of vegetation root soil, guarantees vegetation root growth needs. The gradient of the ditch body 5 along the length direction is 1% -4%, if the gradient is less than 1%, water is easy to accumulate at the bottom of the ditch, and the construction control difficulty is high; if the gradient is greater than 4%, a flow blocking wall (small permeable short dam) is required to be arranged, so that the water flow speed is slowed down and the water flow is distributed at the bottom of the whole ditch, the reaction of runoff and vegetation is enhanced, and the vegetation and deposited pollutants are prevented from being scoured.

The planting soil layer 1 is inwards sunken to form an inverted trapezoid groove for water passing, the angles of the two sides of the groove are 15-30 degrees, the stability of the structure of the ditch body 5 is facilitated, and meanwhile, the drainage capacity of the ditch body 5 is guaranteed; the grooves may also be arcuate or square. The planting soil layer 1 is used for planting various plants to purify water in the ditch body 5.

The thickness of gravel layer 3 is 10cm, buries in the gravel layer 3 has outlet pipe 11, and outlet pipe 11 arranges along ditch body 5 length direction, and a plurality of infiltration holes 111 have been seted up on the pipe wall of outlet pipe 11 as shown in fig. 3, and the high upper surface that planting soil layer 1 is located ditch body 5 bottom part that outlet pipe 11 arranged can avoid rivers to get into behind the ditch body 5 and flow away through the infiltration hole 111 of outlet pipe 11 rapidly, is favorable to improving the purifying effect of vegetation root system to water. Geotextile 301 is arranged on the upper surface and the lower surface of the gravel layer 3, and the geotextile 301 can prevent stones in the gravel layer 3 from losing, keep the structural functional integrity of the ditch body 5, and meanwhile, do not influence the infiltration of moisture.

Overflow ports 8 are formed in two sides of the planting soil layer 1, the overflow ports 8 are connected with a water outlet pipe 11 through pipelines 10, and the overflow ports 8 are used for draining water when the water level in the ditch body 5 is high. As shown in fig. 2, the overflow port 8 is provided with a filtering structure 9, the filtering structure 9 comprises a metal cover plate, a plurality of holes and grooves are formed in the metal cover plate, the metal cover plate with the holes and grooves is arranged at the overflow port 8, impurities in the ditch body 5 are blocked, and the impurities are prevented from blocking the permeation tube and the water outlet tube 11. The metal cover plate is of a galvanized steel structure, and the shape of the overflow port 8 corresponds to the shape of the metal cover plate.

As shown in fig. 1 and 2, an installation groove is formed in the ditch body 5, a water blocking sill 6 is installed in the installation groove, the water blocking sill 6 is perpendicular to the length direction of the ditch body 5, the water blocking sill 6 is connected with the inner wall of the ditch body 5 into a whole, water flow in the ditch body 5 can be blocked and buffered, the flow rate of the water flow is reduced, the purifying effect of vegetation on the water flow is improved, the problem of loss of vegetation and soil layers due to the too fast flow rate of the water flow is solved, a water through hole 7 is formed in the top of the water blocking sill 6, the water flows through the water through hole 7 of the water blocking sill 6, the water blocking sill 6 has certain overcurrent capacity, and the too fast rise of the water level is avoided; the height of the water blocking sill 6 is not lower than one third of the depth of the ditch body 5, the water blocking capacity of the water blocking sill 6 is guaranteed, the inner wall of the ditch body 5 can be well supported, and the stability of the ditch body 5 structure and the road surface 16 structure is guaranteed.

As shown in fig. 2, an abutment 13 for connecting road surfaces 16 on both sides is provided in the ditch body 5, and a culvert 14 is provided at the bottom of the abutment 13. The bridge abutment 13 is arranged in the structure body to facilitate connection of the structure body and the road surface 16, ensure traffic requirements of the road surface 16, simultaneously play a role in water blocking and buffering, and the culvert 14 is arranged to enable water flow in the ditch body 5 to pass through.

The two sides of the culvert 14 can be provided with protective nets, so that the problem that the culvert 14 is easy to block is avoided.

As shown in fig. 4, the two sides of the ditch body 5 are also provided with guard rails 15. The guard rail 15 is provided to prevent pedestrians and vehicles from falling into the ditch body 5.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model.

Claims (10)

1. A sponge type ecological grass planting ditch is characterized in that: including ditch body (5), ditch body (5) are including planting soil layer (1), sand layer (2), gravel layer (3) and former soil tamp layer (4) that set gradually by top layer to inlayer, plant vegetation has been planted on planting soil layer (1), buries outlet pipe (11) in gravel layer (3), outlet pipe (11) are arranged along ditch body (5) length direction, a plurality of overflow mouth (8) have been seted up on ditch body (5) lateral wall, overflow mouth (8) are connected with outlet pipe (11) through pipeline (10), ditch body (5) are provided with multichannel water blocking sill (6) along length direction, the both ends and ditch body (5) inner wall connection of water blocking sill (6), overflow mouth (8) are higher than the top of water blocking sill (6).

2. The sponge type ecological grass planting groove as claimed in claim 1, wherein: a water through hole (7) is formed in the top of the water blocking sill (6).

3. The sponge type ecological grass planting groove as claimed in claim 1, wherein: the height of the water blocking sill (6) is not lower than one third of the depth of the ditch body (5).

4. The sponge type ecological grass planting groove as claimed in claim 1, wherein: geotextile (301) is arranged on the upper surface and the lower surface of the gravel layer (3).

5. A sponge type ecological grass planting ditch as claimed in any one of claims 1 to 4, wherein: a plurality of water seepage holes (111) are formed in the pipe wall of the water outlet pipe (11).

6. The sponge type ecological grass planting groove as set forth in claim 5, wherein: the height of the water outlet pipe (11) is higher than the bottom of the planting soil layer (1).

7. The sponge type ecological grass planting groove as claimed in claim 1, wherein: and a filtering structure (9) is arranged on the overflow port (8).

8. The sponge type ecological grass planting groove as claimed in claim 1, wherein: the outside of the ditch body (5) is connected with a road surface (16), and an impermeable film (12) is arranged between the ditch body (5) and the road surface (16).

9. The sponge type ecological grass planting groove as claimed in claim 1, wherein: both sides of the ditch body (5) are connected with the road surface (16), an abutment (13) for connecting the road surfaces (16) at both sides is arranged in the ditch body (5), and a culvert (14) is formed in the bottom of the abutment (13).

10. The sponge type ecological grass planting groove as claimed in claim 1, wherein: the two sides of the ditch body (5) are provided with protective rails (15).