CN210519559U

CN210519559U - Bioretention tree pool structure based on modularization

Info

Publication number: CN210519559U
Application number: CN201921437318.0U
Authority: CN
Inventors: 程睿; 罗可嘉; 夏静; 韩丽
Original assignee: SHENZHEN RUYIN ECOLOGICAL ENVIRONMENT CONSTRUCTION CO Ltd
Current assignee: SHENZHEN RUYIN ECOLOGICAL ENVIRONMENT CONSTRUCTION CO Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-05-15
Anticipated expiration: 2029-08-29

Abstract

The utility model relates to a biological detention tree pool structure based on modularization, including planting a section of thick bamboo, sleeve, water-holding percolation layer, planting soil. Planting soil is filled in the planting cylinder to plant plants, and inner water permeable holes are distributed on the side wall of the planting cylinder to allow accumulated water in the planting cylinder to overflow outwards; the sleeve is sleeved on the outer ring of the planting cylinder, and outer water penetration holes are distributed on the side wall of the sleeve to enable accumulated water in the sleeve to overflow outwards; the water holding percolation layer is filled between the planting cylinder and the sleeve to enable accumulated water in the sleeve to sink and be discharged outwards. The modularized biological detention tree pool structure is beneficial to water to permeate into the soil outwards, when urban street trees are planted, normal growth of plant root systems is promoted, meanwhile, rainwater detention and storage are carried out to the maximum extent, rainwater infiltration surfaces are increased, urban underground water is supplemented, and the function of a cavernous body of the urban green street tree pool is exerted.

Description

Bioretention tree pool structure based on modularization

Technical Field

The utility model relates to a biological detention tree pond structure based on modularization.

Background

At present, in the rapid advancing urbanization process of China, the traditional urban construction mode leads to the increase of impervious areas of urban roads, building groups and the like.

The consequences that cause, runoff collects easily and causes surface ponding in the time of the heavy rain, increases urban drainage pressure, leads to urban waterlogging constantly. Secondly, the ground is hardened, rainwater is difficult to permeate underground to supplement underground water, and further deterioration of urban water environment is caused.

Therefore, the method makes full use of the limited natural ecosystem of the city, improves the rainwater retention, storage regulation and discharge capacity, becomes an effective means for relieving flood and peak shifting, solving urban waterlogging, supplementing underground water resources and improving urban water environment and microclimate environment, and has become the necessary requirement for building sponge cities in China.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in that, a biological detention tree pool structure based on modularization is provided.

The utility model provides a technical scheme that its technical problem adopted is: constructing a modularized bioretention tree pool structure, which comprises a planting cylinder, a sleeve, a water retention percolation layer and planting soil;

the planting soil is filled in the planting cylinder to plant plants, and inner water permeable holes are distributed on the side wall of the planting cylinder to allow accumulated water in the planting cylinder to overflow outwards;

the sleeve is sleeved on the outer ring of the planting cylinder, and outer water penetrating holes are distributed on the side wall of the sleeve to enable accumulated water in the sleeve to overflow outwards;

the water-holding percolation layer is filled between the planting cylinder and the sleeve, so that accumulated water in the sleeve can sink and be discharged outwards.

Preferably, the planting section of thick bamboo includes two piece at least circumference first prefabs of concatenation in proper order, the double-phase opposite sides of horizontal direction of first prefab are equipped with first block portion, second block portion respectively to let two the mutual block in concatenation limit of first prefab.

Preferably, the first prefabricated member is in a semicircular shape, the first clamping portion is a first clamping groove extending in the height direction of one vertical edge of the first prefabricated member, and the second clamping portion is a first clamping table extending in the height direction of the other vertical edge of the first prefabricated member;

the first clamping groove is a T-shaped groove, and the first clamping table is a T-shaped boss matched with the first clamping groove.

Preferably, the sleeve comprises at least two second prefabricated members which are sequentially spliced in the circumferential direction, and a third clamping portion and a fourth clamping portion are respectively arranged on two opposite sides of the second prefabricated member in the horizontal direction, so that the splicing edges of the two second prefabricated members are clamped with each other.

Preferably, the second prefabricated member is plate-shaped, and the sleeve comprises four second prefabricated members which are sequentially spliced in the circumferential direction.

Preferably, the third clamping portion is a second clamping groove formed in the second prefabricated member and extending along the height direction at one vertical edge of one side, close to the planting cylinder, of the second prefabricated member, and the fourth clamping portion is a second clamping table formed in the second prefabricated member and extending along the height direction at the other vertical edge of the second prefabricated member.

Preferably, the upper edge of the planting cylinder is lower than the upper edge of the sleeve, the height of the planting soil is not higher than the upper edge of the planting cylinder, and the planting soil is in a concave shape with a lower center and a higher periphery.

Preferably, the water holding infiltration layer comprises a gravel layer, a sand layer and a ceramsite layer which are distributed from bottom to top.

Preferably, the water-holding percolation layer further comprises a drain pipe which is buried in the gravel layer and used for draining water, and the drain pipe is connected with a pipe network.

Preferably, the artificial soil also comprises a gravel layer covering the ceramic particle layer and the upper side of the planting soil, and a rainwater grate covering the upper side of the gravel layer.

Implement the utility model discloses a based on modularized bioretention tree pond structure has following beneficial effect: the modularized biological detention tree pool structure is beneficial to water to permeate into the soil outwards, when urban street trees are planted, normal growth of plant root systems is promoted, meanwhile, rainwater detention and storage are carried out to the maximum extent, rainwater infiltration surfaces are increased, urban underground water is supplemented, and the function of a cavernous body of the urban green street tree pool is exerted.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a schematic cross-sectional view of a modular based bioretention tree pool structure in an embodiment of the invention;

FIG. 2 is a schematic top view of the modular based bioretention tree pool structure of FIG. 1;

FIG. 3 is a schematic structural view of the first preform of FIG. 2;

fig. 4 is a schematic structural view of the second preform of fig. 2.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in figure 1, the structure of the module-based bioretention tree pool in the preferred embodiment of the invention comprises a planting cylinder 1, a sleeve 2, a water-holding infiltration layer 3 and planting soil 4.

Referring to fig. 1 and 2, planting soil 4 is filled in the planting pot 1 to plant trees 5, flowers, plants and the like. The side wall of the planting cylinder 1 is provided with inner permeable holes 11, so that water in the sleeve 2 can enter the planting cylinder 1, accumulated water in the planting cylinder 1 can overflow to the water-holding percolation layer 3, and accumulated water on the surface of the planting soil 4 can not be caused.

2 covers of sleeve enclose and establish in planting a 1 outer lane of section of thick bamboo, and it has outer hole 21 that permeates water to distribute on 2 lateral walls of sleeve, lets the ponding in the sleeve 2 outwards spill over, lets the water in the sleeve 2 can ooze outside entering into the soil in, replenish groundwater.

The water holding percolation layer 3 is filled between the planting cylinder 1 and the sleeve 2, so that accumulated water in the sleeve 2 can sink and be discharged outwards, and then enters the soil to replenish underground water.

Adopt the utility model discloses a because modular bioretention tree pool structure is favorable to during the outside infiltration soil of water, when planting urban street tree, when promoting plant roots normal growth, the at utmost is detained and is stored the rainwater to increase the rainwater infiltration face, supply urban groundwater, performance urban green way tree pool cavernosum function.

The top edge of planting a section of thick bamboo 1 is less than the top edge of sleeve 2, and the top edge of planting a section of thick bamboo 1 is not higher than to the height of planting soil 4, and plants soil 4 and be the center low concave surface form high all around, is favorable to collecting water to let the underwater infiltration. Generally, the height of the filled soil after the trees 5 are planted is not higher than that of the planting cylinders 1, and the filled soil is in a concave shape with a lower center and a higher periphery.

Referring to fig. 1 to 3, the planting tube 1 includes two first prefabricated members 12 sequentially spliced in the circumferential direction, and two opposite sides of the first prefabricated member 12 in the horizontal direction are respectively provided with a first clamping portion 121 and a second clamping portion 122, so that the splicing edges of the two first prefabricated members 12 are clamped with each other. The number of the first prefabricated members 12 can also be more than two, and the first prefabricated members are sequentially spliced along the circumferential direction.

First prefab 12 is semicircle annular, and first block portion 121 is the first draw-in groove that extends the setting at a vertical border direction of height of first prefab 12, and second block portion 122 is the first ka tai that extends the setting at another vertical border direction of height of first prefab 12, and first draw-in groove, the mutual block of first ka tai of adjacent first prefab 12 are fixed.

In this embodiment, the first clamping groove is a T-shaped groove, the first clamping table is a T-shaped boss matched with the first clamping groove, and the first clamping groove and the first clamping table extend along the whole edge where the first clamping groove and the first clamping table are located. The inner diameter of the first preform 12 is preferably 80 to 150cm, the height is 50 to 100cm, the thickness is preferably 30 to 50mm, and the inner water permeable holes 11 are preferably 15 to 30mm in diameter and 50 to 100mm apart.

Referring to fig. 1, 2 and 4, in some embodiments, the sleeve 2 includes four second preforms 22 which are sequentially spliced in the circumferential direction, and in this embodiment, the second preforms 22 are plate-shaped and are spliced to form the square sleeve 2. The number of the second preform 22 may also be two or other number depending on the shape of the second preform 22.

The two opposite sides of the second prefabricated member 22 in the horizontal direction are respectively provided with a third engaging portion 221 and a fourth engaging portion 222, so that the splicing edges of the two second prefabricated members 22 can be engaged with each other.

The third engaging portion 221 is a second engaging groove extending along the height direction at one vertical edge of the second preform 22 close to the planting tube 1, and the fourth engaging portion 222 is a second engaging platform extending along the height direction at the other vertical edge of the second preform 22. In this embodiment, the second slot is a T-shaped slot, the second clamping table is a T-shaped boss matched with the second slot, and both the second slot and the second clamping table extend along the whole edge where the second slot and the second clamping table are located.

The inner edge length of the second preform 22 is always 15-20cm longer and 10-15cm higher than the outer diameter of the first preform 12. The thickness is preferably 30-50 mm. The diameter of the outer water penetration holes 21 is preferably 15-30mm, and the distance between the outer water penetration holes is preferably 50-100 mm.

Referring to fig. 1 and 2, the center of the sleeve 2 coincides with the center of the planting cylinder 1, so that a space with a vertical distance of 7.5-10cm is kept between the outer wall of the planting cylinder 1 and the four sides of the sleeve 2, and the water-holding percolation layer 3 is filled.

In some embodiments, the water-holding percolation layer 3 comprises a gravel layer 31, a sand layer 32 and a ceramic grain layer 33 which are distributed from bottom to top. The thickness of the bottom gravel layer 31 is preferably 10-15cm, the thickness of the sand layer 32 is preferably 5-10cm, and the height position of the filling of the ceramsite layer 33 is kept flush with the upper edge of the planting cylinder 1.

The ceramsite is a light material with a plurality of microporous structures and certain mechanical strength from the outside to the inside, and the particle size is preferably 1.0-2.0 cm. The ceramsite has good water absorption and return performance, has the functions of water storage, permeation promotion, filtration and purification, and has the function of an overflow channel.

The water-holding percolator layer 3 further comprises a drain pipe 34 embedded in the gravel layer 31 for draining water, the drain pipe 34 preferably being of size DN 40-60. The drain 34 is connected to a nearby rain water recovery pipe network or municipal drain 34 network.

Further, the artificial wetland comprises a gravel layer 6 covering the ceramic particle layer 33 and the upper side of the planting soil 4, and a rainwater grate 7 covering the upper side of the gravel layer 6. The macadam is preferably common macadam with the thickness of 10-15mm, the paving thickness of the macadam is preferably 5-7.5cm, and further, the height of the macadam layer 6 from the ground is reserved to be 5-7.5 cm. The rainwater grate 7 is laid on the crushed stone layer 6, and the rainwater grate 7 is various grid-shaped grates commonly seen in the market.

Biological detention tree pool, its recessed formula setting can be when heavy rain, and the road surface runoff ponding sinks into the tree pool after 7 preliminary screens of rainwater grates, plays temporary detention regulation effect. After the rainwater in the tree pool is filtered by the gravel layer 6, one part of the rainwater directly seeps into the soil of the tree pool. A part of the rain water can directly enter the water-holding percolation layer 3. The ceramsite in the water-holding percolation layer 3 can rapidly absorb water, and part of rainwater is retained and stored in the ceramsite layer 33.

Unnecessary rainwater not only can see through the interior hole 11 of permeating water on planting section of thick bamboo 1 and plant soil 4 infiltration to the tree pool rapidly, promotes tree pool soil retaining, can see through the outer hole 21 of permeating water on the sleeve 2 moreover and diffuse the infiltration all around to the tree pool rapidly, supplyes city groundwater, the conservation groundwater. After the ceramsite layer 33 holds water and is saturated, the rainwater is filtered and purified through the ceramsite layer 33 and the bottom sand layer 32, and then is discharged to a nearby rainwater recovery pipe network or municipal pipe network through a drain pipe 34 in the gravel layer 31 for direct utilization or discharge.

The biological detention tree pool structure has multiple functions of 'seeping, storing, detention, purification, using, discharging' and the like, can effectively absorb and absorb rainwater runoff on the urban underlying surface, flood-fighting and peak-shifting, and can directly recycle rainwater after being filtered, purified and recycled for many times. Secondly, the utility model provides a tree pool prefab can be based on modular design in a large amount of prefabricated production nearby, has production, transportation convenience, and the field assembly is simple, and advantages such as construction process is simple and convenient high-efficient.

Can be used in places such as roadside, square, parking lot, park, building periphery, etc., and utilize the functions of 'seeping, storing, stagnating, cleaning, using and discharging', etc. to absorb and utilize the biological detention tree pool of urban underlying surface rainwater runoff.

In example 1: a construction method of a stagnant water infiltration promoting tree pool structure based on a modular design comprises the following steps of selecting a site nearby at a construction site, modeling, casting a first prefabricated member 12 and a second prefabricated member 22 for later use. Wherein the second preform 22 is 115cm high, 115cm long and 4cm thick, and the first preform 12 is 100cm high, 100cm diameter and 4cm thick.

And (4) carrying out field measurement, excavating a tree pit and leveling the bottom. The size of the tree pit is slightly larger than the prefabricated part in the form of a square lattice, and the depth of the tree pit is not smaller than the height of the first prefabricated part 12. The second prefabricated parts 22 are sequentially embedded into each other in the tree pit to assemble the sleeve 2, and the sleeve 2 is not higher than the ground. In the sleeve 2, the two first prefabricated members 12 are mutually embedded and assembled into the planting cylinder 1.

The center of the planting cylinder 1 and the center of the sleeve 2 are coincided as much as possible, the space with the vertical distance of 7.5cm is kept between the four sides of the planting cylinder 1 and the sleeve 2, and the water-holding percolation layer 3 is filled. A gravel layer 31 of 10cm thickness is first laid on the bottom, and a drain pipe 34 of DN50 size is buried in the gravel layer 31, and the drain pipe 34 is connected to a network of nearby municipal drain pipes 34 or a rainwater collection pipe network. A sand layer 32 of 10cm thickness is then laid over the gravel layer 31. An 80cm ceramsite layer 33 is arranged above the sand layer 32 and keeps the same height with the planting cylinder 1. Planting soil 4 is filled in a planting pond formed by the planting cylinders 1, and trees 5 are planted. The height of the planting soil 4 of the trees 5 after planting is not higher than that of the planting cylinders 1, and the trees are in a concave shape with a low center and high peripheries. A gravel layer 6 with the thickness of 7.5cm is laid on the top layer of the tree pool, and a rainwater grate 7 is covered.

In example 2: a water-retention infiltration-promotion type tree pool structure based on modular design and a construction method thereof comprise the following steps:

within the prefabrication plant, the first preform 12 and the second preform 22 are modeled and cast. Wherein the second prefabricated member 22 is 100cm high, 100cm side long and 3.5cm thick, the first prefabricated member 12 is 85cm high, 80cm diameter and 3.5cm thick, and is transported to the construction site for standby.

And (5) measuring in a construction site, excavating a tree pit and flattening the bottom. The size of the tree pit is slightly larger than that of the sleeve 2, and the depth of the tree pit is not smaller than that of the sleeve 2. And sequentially embedding and assembling four second prefabricated parts 22 into each other in the tree pit to form the sleeve 2, wherein the structural parts are not higher than the ground. In the sleeve 2, the two first prefabricated members 12 are mutually embedded and assembled into the planting cylinder 1.

The center of the planting cylinder 1 is coincident with the center of the sleeve 2 as far as possible, so that the four sides of the planting cylinder 1 and the sleeve 2 keep a 10cm vertical distance space, and the water-holding percolation layer 3 is filled. A gravel layer 31 of 10cm thickness is first laid on the bottom, and a drain pipe 34 of DN60 size is buried in the gravel layer 31, and the drain pipe 34 is connected to a network of nearby municipal drain pipes 34 or a rainwater collection pipe network. A sand layer 32 of 5cm thickness is then laid over the gravel layer 31. A 70cm ceramsite layer 33 is arranged above the sand layer 32 and keeps the same height with the planting cylinder 1. Planting soil 4 is filled in a planting pond formed by the planting cylinders 1, and trees 5 are planted. The height of the planting soil 4 of the trees 5 after planting is not higher than that of the planting cylinders 1, and the trees are in a concave shape with a low center and high peripheries. A gravel layer 6 with the thickness of 7.5cm is laid on the top layer of the tree pool, and a rainwater grate 7 is covered.

It is to be understood that the above-described respective technical features may be used in any combination without limitation.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A modularized bioretention tree pool structure is characterized by comprising a planting cylinder (1), a sleeve (2), a water retention percolation layer (3) and planting soil (4);

the planting soil (4) is filled in the planting cylinder (1) to plant plants, and inner water permeable holes (11) are distributed on the side wall of the planting cylinder (1) to allow accumulated water in the planting cylinder (1) to overflow outwards;

the sleeve (2) is sleeved on the outer ring of the planting cylinder (1), and outer water penetration holes (21) are distributed on the side wall of the sleeve (2) to enable accumulated water in the sleeve (2) to overflow outwards;

the water-holding percolation layer (3) is filled in the planting cylinder (1) and between the sleeves (2) so as to lead accumulated water in the sleeves (2) to sink and be discharged outwards.

2. The modular bioretention tree pond structure according to claim 1, wherein the planting cylinder (1) comprises at least two first prefabricated members (12) which are sequentially spliced in the circumferential direction, and two opposite sides of the first prefabricated members (12) in the horizontal direction are respectively provided with a first clamping portion (121) and a second clamping portion (122) so as to clamp the splicing edges of the two first prefabricated members (12) with each other.

3. The modular bioretention tree pond structure according to claim 2 wherein the first prefabricated member (12) is semi-circular, the first engaging portion (121) is a first engaging groove extending in height along one vertical edge of the first prefabricated member (12), and the second engaging portion (122) is a first engaging platform extending in height along the other vertical edge of the first prefabricated member (12);

4. The bioretention tree pond structure based on modularization of claim 1, characterized in that the sleeve (2) includes at least two second prefabricated members (22) which are sequentially spliced in the circumferential direction, and two opposite sides of the second prefabricated members (22) in the horizontal direction are respectively provided with a third clamping portion (221) and a fourth clamping portion (222) so as to clamp the splicing edges of the two second prefabricated members (22) with each other.

5. The modular-based bioretention tree pool structure according to claim 4 wherein the second prefabricated members (22) are plate-like and the sleeve (2) comprises four circumferentially consecutive second prefabricated members (22).

6. The bioretention tree pool structure according to claim 5 wherein the third engaging portion (221) is a second engaging groove extending in height direction at one vertical edge of the second pre-form (22) adjacent to the planter (1) and the fourth engaging portion (222) is a second engaging ledge extending in height direction at the other vertical edge of the second pre-form (22).

7. The modular bioretention tree pond structure according to claim 1 characterized in that the planting pot (1) has an upper edge lower than the upper edge of the sleeve (2), the planting soil (4) has a height not higher than the upper edge of the planting pot (1), and the planting soil (4) is concave with a low center and a high periphery.

8. The modular based bioretention tree pond structure according to any one of claims 1-7, characterized in that the water holding percolation layer (3) comprises from bottom to top a gravel layer (31), a sand layer (32), a haydite layer (33).

9. The modular based bioretention tree pool structure according to claim 8 wherein the water holding percolation layer (3) further includes a drainage pipe (34) embedded in the gravel layer (31) for drainage, the drainage pipe (34) being connected to a pipe network.

10. The module-based bioretention tree pond structure according to claim 8 further including a gravel layer (6) covering the ceramic grain layer (33), the upper side of the planting soil (4) and a rain grate (7) covering the upper side of the gravel layer (6).