Ecological grass planting ditch seepage flow system of adjustable storage
Technical Field
The utility model relates to the technical field of sponge cities and water and soil conservation, in particular to an adjustable ecological grass planting ditch seepage system.
Background
At present, an ecological grass planting ditch is a common sponge city measure, and as shown in fig. 2, a road structure is schematically shown, two sides of a traffic lane 15 are provided with ecological grass planting ditches 14, a permeable pipe 8 is buried at the bottom of the ecological grass planting ditches 14, and one end of the permeable pipe 8 is directly communicated with an inspection well 13. When raining, the rainwater penetrating through the soil body enters the permeable pipe 8 partially, and is directly and quickly discharged to the inspection well 13 through the permeable pipe 8.
Therefore, the structure of the conventional ecological grass planting ditch 14 is known to have no rainwater energy-regulating capability, rainwater can be directly discharged to the inspection well 13 by the permeable pipe 8, cannot be stored at ordinary times, provides moisture for soil, and cannot play a role in buffering and regulating when encountering large rainwater.
Disclosure of utility model
The utility model aims to provide an adjustable ecological grass planting ditch seepage system which can timely adjust the water storage volume of an ecological grass planting ditch according to local climate characteristics, can store rainwater for a long time in dry seasons, continuously provides water for soil, and can play a role in buffering and adjusting when the rainfall is large.
The aim of the utility model is achieved by the following technical scheme:
The ecological grass planting ditch seepage system with the adjustable storage is characterized by comprising a seepage pipe buried at the bottom of the ecological grass planting ditch and seepage-proofing films arranged on two side surfaces and the bottom surface of the ecological grass planting ditch, wherein a plurality of seepage-proofing holes are formed in the seepage pipe, one end of the seepage pipe is connected with an observation pipe, the upper end of the observation pipe extends to the upper surface of the ecological grass planting ditch, the other end of the seepage pipe extends to an inspection well or an overflow well, and a vertical upward overflow pipe is arranged at the end part of the seepage pipe extending to the inspection well or the overflow well.
Further, the ecological grass planting ditch is sequentially provided with a gravel water storage layer, a planting soil layer and a gravel water drainage layer from top to bottom, and the permeable pipe is transversely arranged at the bottom of the gravel water drainage layer.
Further, a reverse-filtering geotextile is arranged between the planting soil layer and the gravel drainage layer.
Further, the overflow pipe is a telescopic pipe which can be adjusted up and down.
Further, the three-way joint is further included, a first port of the three-way joint is connected with the end part of the permeable pipe, which extends out of the inspection well or the overflow well, a second port of the three-way joint faces upwards vertically, the overflow pipe is connected to the second port of the three-way joint, and a third port of the three-way joint is sealed through the sealing cover.
Further, the observation tube is disposed obliquely.
Further, an end cover is arranged at the upper end of the observation tube.
Compared with the prior art, the utility model has the following beneficial effects:
According to the utility model, rainwater can be stored in the ecological grass planting ditch through the impermeable membrane to provide water for soil and plants, meanwhile, the water storage capacity is regulated through the overflow pipe connected with the water permeable pipe, and when the water storage capacity exceeds the upper end of the water permeable pipe, the water in the ecological grass planting ditch can be discharged from the overflow pipe to the inspection well or the overflow well, so that the regulation and storage of the rainwater in the ecological grass planting ditch are realized. When the rainfall is great, through the energy regulation ability of ecological grass planting ditch, just can form buffering and regulation, avoid a large amount of rainwater to gush into inspection shaft or overflow well once, form the waterlogging.
The utility model has simple structure, can observe the internal water level and other conditions through the upper port of the observation tube in the use process, and is convenient to maintain.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a road with an ecological grass planting ditch according to the prior art.
The meaning of the reference numerals in the figures:
1-gravel water storage layer, 2-planting soil layer, 3-gravel drainage layer, 4-impermeable membrane, 5-reverse-filtering geotextile, 6-observation tube, 7-end cover, 8-water permeable tube, 9-water permeable hole, 10-three-way joint, 11-overflow tube, 12-transverse water tube, 13-inspection well, 14-ecological grass planting ditch, 15-traffic lane, 16-pavement and 17-traffic lane.
Detailed Description
The utility model is further described below with reference to examples.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Examples:
Fig. 1 shows an ecological grass planting ditch seepage system with adjustable storage, which comprises a water permeable pipe 8 buried at the bottom of the ecological grass planting ditch and seepage prevention films 4 arranged at the two side surfaces and the bottom surface of the ecological grass planting ditch.
The impermeable film 4 can prevent the penetration of moisture in the ecological grass planting groove to both sides and the ground, so that the moisture can be stored in the ecological grass planting groove, thereby providing moisture for soil and plants.
The ecological grass planting ditch is provided with a gravel water storage layer 1, a planting soil layer 2 and a gravel drainage layer 3 from top to bottom in sequence, and a water penetrating pipe 8 is transversely arranged at the bottom of the gravel drainage layer 3. The gravel aquifer 1 of this example had a thickness of 20cm, the gravel drainage layer 3 had a thickness of 30cm, and the water permeable tube 8 had a specification of DN160.
The soil and sand filtering geotechnical cloth 5 is arranged between the planting soil layer 2 and the gravel water drainage layer 3, the soil and sand of the planting soil layer 2 can be blocked on the soil and sand filtering geotechnical cloth 5 through the water, so that the water can permeate into the gravel water drainage layer 3, and the soil and sand of the planting soil layer 2 is prevented from entering the gravel water drainage layer 3.
Wherein, be equipped with a plurality of holes 9 that permeate water on the pipe 8 that permeate water, moisture can get into the pipe 8 that permeate water through the hole 9 that permeates water. One end of the water permeable pipe 8 is connected with an observation pipe 6, the observation pipe 6 is obliquely arranged, the upper end of the observation pipe 6 extends to the upper surface of the ecological grass planting ditch, and an end cover 7 is arranged at the upper end of the observation pipe 6. The upper port of the observation tube 6 can be used as an observation port or a cleaning port, and in the use process, the conditions such as the internal water level can be observed through the upper port of the observation tube 6, and the inside can be cleaned through the observation tube 6, so that the maintenance is convenient.
The other end of the water permeable pipe 8 extends into the inspection well 13 or the overflow well. The embodiment is further provided with a three-way joint 10, a first port of the three-way joint 10 is connected with an end part of the water permeable pipe 8 extending into the inspection well 13 or the overflow well, a second port of the three-way joint 10 faces vertically upwards, an overflow pipe 11 is connected to the second port of the three-way joint 10, and a third port of the three-way joint 10 is sealed through a sealing cover. When overhauling, can unscrew the closing cap, dredge the clearance to the water pipe 8 to it is more convenient to make the maintenance.
The overflow pipe 11 is vertically upwards, and the overflow pipe 11 can make the water in the pipe 8 that permeates water can not directly arrange to inspection shaft 13 or overflow well in, only when the water storage volume of ecological grass planting ditch exceeds the upper end of the pipe 11 that permeates water, the water in the ecological grass planting ditch can be discharged to inspection shaft 13 or overflow well from overflow pipe 11 to make ecological grass planting ditch can hold water, and can adjust the water storage volume.
The overflow pipe 11 of the embodiment adopts the telescopic pipe which can be adjusted up and down, and the water storage capacity in the ecological grass planting ditch can be adjusted by adjusting the height through the telescopic pipe, so that the ecological grass planting ditch can be better adapted to different conditions. The overflow pipe 11 adopts a conventional telescopic structure, for example, the overflow pipe 11 is divided into a plurality of sections of sleeves in the drawing, the sections of sleeves are sleeved together in sequence, the sleeves are limited by buckles, and the sleeves can also be locked and limited by bolts.
In the use of this embodiment, the rainwater can permeate gravel aquifer 1, planting soil layer 2, permeate to gravel drainage layer 3, when the rainwater is not too much, the rainwater will be stored in ecological grass planting ditch, when the rainwater is more, and rise to when exceeding overflow pipe 11's upper end, the part of exceeding will be discharged to inspection shaft 13 or overflow well from overflow pipe 11, inspection shaft 13 or overflow well's bottom is connected with the horizontal water pipe 12 of DN300, and horizontal drain pipe 12 meets with municipal rainwater inspection shaft for discharge of rainwater.
The above-mentioned embodiments of the present utility model are not intended to limit the scope of the present utility model, and the embodiments of the present utility model are not limited thereto, and all kinds of modifications, substitutions or alterations made to the above-mentioned structures of the present utility model according to the above-mentioned general knowledge and conventional means of the art without departing from the basic technical ideas of the present utility model shall fall within the scope of the present utility model.