CN210049321U

CN210049321U - Rainwater regulation instrument suitable for in park mountain forest environment

Info

Publication number: CN210049321U
Application number: CN201920677703.6U
Authority: CN
Inventors: 刘源; 周翔宇
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-02-11
Anticipated expiration: 2029-05-13

Abstract

The utility model discloses a rainwater regulation instrument suitable for in park mountain forest environment, including rainwater regulation pond and drainage system, the bottom of the pool of rainwater regulation pond is equipped with ground basic unit, middling screed-coat, first non-woven fabrics layer, waterproof coil stock layer, second non-woven fabrics layer and sandy soil layer from the bottom to the supreme in proper order, and the pool wall of rainwater regulation pond includes rubble building block retaining wall and natural stone in proper order from bottom to top and pushes up, and the pool wall height all around of rainwater regulation pond varies, and the hillside upper berth that high pool wall top and hillside link to each other and link to each other is equipped with the natural stone of massif, and the low pool wall top links to each other with drainage system; drainage system collects well lid and downspout including the rainwater, and the natural stone in the pool wall that hangs down is pressed the top and is equipped with the natural stone gap, and natural stone gap and rainwater regulation pond intercommunication, and collect well lid intercommunication with the rainwater, and the rainwater is collected well lid and downspout intercommunication. The utility model discloses can solve the rainwater regulation problem in the park massif environment, and have the view effect.

Description

Rainwater regulation instrument suitable for in park mountain forest environment

Technical Field

The utility model is used for the garden engineering field, concretely relates to rainwater regulation instrument suitable for in park mountain forest environment.

Background

At present, the landscape rainwater storage tank is widely applied to the construction of sponge cities, and plays a role in temporarily storing and regulating rainwater in flood seasons. The rainwater regulation and storage pool is a rainwater collection facility, and is mainly used for slowly discharging rainwater from the regulation and storage pool after the maximum flow rate is reduced in the peak flow rate temporary storage period of rainwater runoff.

However, in the mountain environment of the urban park, in the process that water in the peak period of rainwater runoff flows into a river channel or a water pool through a natural slope, the water on the mountain is often larger through surface runoff, and the rainwater runoff takes away a large amount of soil on a steep slope.

At present, two conventional methods of a rainwater storage tank are adopted, namely a first conventional method, water enters from the top of the bottom flow groove type storage tank, water exits from the bottom of the tank, water is not stored in the tank by the first conventional method, and the water storage capacity in the tank can be dynamically regulated and stored along with the change of the rainfall during rainfall. But the elevation of the water outlet pipe is about 2-5 m lower than that of the water inlet pipe, so that the water outlet pipe is suitable for places with low elevation requirements. And conventionally, water is fed into the top of the water pump lifting type storage tank, and the water is overflowed from the top of the tank after the storage tank is filled with water. The elevation of the water outlet pipe and the elevation of the water inlet pipe can be the same, and the water outlet pipe is suitable for places with higher elevation requirements of the water inlet pipe and the water outlet pipe, such as areas of a basement roof and the like. The storage amount is fixed during rainfall, and the rainwater treatment equipment is emptied or switched through the lifting pump after rainfall. However, the rainwater storage tanks prepared by the two conventional methods are not suitable for rainwater storage in mountain forest environments. Obviously in the mountain rainwater regulation and storage process, the slope of mountain itself is great, and the engineering degree of difficulty coefficient is high, consequently is more suitable for through the slope collect the rainwater and simply purify in the regulation and storage pond, then drop into park with the aquatic.

To sum up, at present, there is not a rainwater regulation instrument that can solve the rainwater regulation problem in city park massif environment, and can reach the view effect.

Disclosure of Invention

The utility model aims to solve the technical problem that the not enough rainwater regulation instrument that is applicable to in park mountain forest environment that provides to above-mentioned prior art, this rainwater regulation instrument in being applicable to park mountain forest environment can solve park mountain environment in the rainwater regulation control problem, can reduce rainwater pipe canal peak flow, and have the view effect.

In order to realize the technical purpose, the utility model discloses the technical scheme who takes does:

a rainwater storage tool suitable for a park mountain forest environment comprises a rainwater storage tank and a drainage system, wherein the rainwater storage tank is built on a mountain slope, the bottom of the rainwater storage tank is sequentially provided with a ground base layer, a medium sand leveling layer, a first non-woven fabric layer, a waterproof roll material layer, a second non-woven fabric layer and a sandy soil layer from bottom to top, the ground base layer is formed by rolling and compacting the mountain slope after leveling, the medium sand leveling layer is laid on the densely rolled ground base layer, the first non-woven fabric layer is laid on the medium sand leveling layer, the waterproof roll material layer is laid on the first non-woven fabric layer, the second non-woven fabric layer is laid on the waterproof roll material layer, and the sandy soil layer is laid on the second non-woven fabric layer; the wall of the rainwater storage tank sequentially comprises a rubble block retaining wall and a natural stone coping from bottom to top, a retaining wall foundation pit is excavated on a mountain slope around the bottom of the rainwater storage tank, the rubble block retaining wall is built in the retaining wall foundation pit, and the natural stone coping is laid on the upper surface of the rubble block retaining wall so as to form the wall of the rainwater storage tank; the heights of the peripheral pool walls of the rainwater storage pool are different, wherein the top of the high pool wall is connected with a hillside, mountain natural stones are paved on the connected hillside, and the top of the low pool wall is connected with a drainage system; the drainage system comprises a rainwater collection well cover and a rainwater pipe, wherein a natural stone overflow port is arranged on a natural stone pressing top in a pool wall at the lower part of the rainwater storage pool, one end of the natural stone overflow port is communicated with the rainwater storage pool, the other end of the natural stone overflow port is communicated with the rainwater collection well cover, the rainwater collection well cover is communicated with the rainwater pipe, and the rainwater pipe is laid below a road surface beside a mountain side slope.

As the utility model discloses further modified technical scheme, the thickness of well sand screed-coat is 50 mm.

As the technical proposal of the further improvement of the utility model, the first non-woven fabric layer and the second non-woven fabric layer are both 200g/m ²The nonwoven fabric of (1).

As the utility model discloses further modified technical scheme, rubble building block retaining wall adopts M10 cement mortar to build rubble building block retaining wall, natural stone bears down on one and passes through the upper surface that the grout bonds at rubble building block retaining wall.

As a further improved technical scheme of the utility model, waterproofing membrane layer adopts polymer from gluing glued membrane waterproofing membrane.

As a further improved technical scheme of the utility model, the thickness of sandy soil layer is 300 mm.

As the utility model discloses further modified technical scheme, the rainwater is collected the well lid and is adopted the aperture to collect the well lid for 60 mm's plain noodles bluestone rainwater, the thickness that the well lid was collected to the rainwater is 80 mm.

As the utility model discloses further modified technical scheme, the downspout adopts the downspout that the diameter is 300 mm.

As a further improved technical scheme of the utility model, the inside heavy water plant layer and/or view plant layer that is equipped with of rainwater regulation pond.

The utility model has the advantages that: the utility model discloses a rainwater regulation pond and drainage system can solve the rainwater regulation problem in the city park massif environment, have reduced rainwater pipe canal peak flow promptly, and the rainwater regulation pond locates and has the view effect in the park. The rainwater can be stored temporarily in the rainwater regulation pond, temporarily preserves the peak flow of rainwater runoff in the rainwater regulation pond promptly, treats that the rainwater is full of the back, slowly flows through the rainwater through the natural stone gap in the low pool wall and collects the well lid, and the rainwater is collected the well lid and is filtered the hillstone silt back through self aperture, gets into the downspout, finally discharges into municipal administration pipeline or flows into the lake outlet, realizes the rainwater regulation process. Wherein the mountain natural stone blocks are laid on the hillside higher than the rainwater storage tank, so that the water and soil loss of the hillside can be effectively prevented. The plant in the rainwater regulation pond and the aperture of rainwater collection well lid can play the purification effect of water effectively, and simultaneously, the rainwater regulation pond also can reach better ground view effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The following further description of the embodiments of the present invention is made with reference to fig. 1:

a rainwater regulation and storage tool suitable for the environment of park and mountain forest comprises a rainwater regulation and storage pool and a drainage system. The rainwater regulation and storage tank of this embodiment is built on the mountain slope of road surface side in park mountain forest environment, and drainage system builds between the road surface of rainwater regulation and storage tank and mountain slope side. The rainwater regulation pond stores rainwater in rainy season, overflows when the rainwater reaches a certain amount (namely, converges the water pond), and simply filters through a rainwater collection well cover 10 of a drainage system to enter a rainwater pipe 11 and finally converges into a lake area or connects with a municipal pipeline.

Referring to fig. 1, the bottom of the rainwater storage tank of this embodiment is equipped with ground basic unit 4, medium sand screed-coat 5, first non-woven fabrics layer 6, waterproof roll material layer 7, second non-woven fabrics layer 8 and sandy soil layer 9 from supreme down in proper order, ground basic unit 4 is made level by original mountain slope and is rolled closely knit and form, medium sand screed-coat 5 is laid on rolling closely knit ground basic unit 4, first non-woven fabrics layer 6 is laid on medium sand screed-coat 5, waterproof roll material layer 7 is laid on first non-woven fabrics layer 6, second non-woven fabrics layer 8 is laid on waterproof roll material layer 7, sandy soil layer 9 is laid on second non-woven fabrics layer 8.

Referring to fig. 1, the wall of the rainwater storage tank of the embodiment sequentially comprises a rubble block retaining wall 2 and a natural stone coping 3 from bottom to top, a retaining wall foundation pit is excavated on a mountain slope around the bottom of the rainwater storage tank, the rubble block retaining wall 2 is built in the retaining wall foundation pit, and the natural stone coping 3 is laid on the upper surface of the rubble block retaining wall 2 so as to form the wall of the rainwater storage tank; the peripheral tank wall heights of the rainwater storage tank are different, mountain natural stone blocks 1 are paved on a mountain slope with the top of one high side tank wall connected with the mountain slope on the mountain slope and connected with the mountain slope, and the top of one low side tank wall is connected with a road surface beside the mountain slope through a drainage system.

Referring to fig. 1, the drainage system of this embodiment includes a rainwater collection well lid 10 and a rainwater pipe 11, the natural stone in a side wall of the rainwater storage tank is pressed against the top 3 and is equipped with a natural stone overflow (i.e. the natural stone is equipped with an overflow), wherein one end of the natural stone overflow is communicated with the rainwater storage tank, and the other end is communicated with the rainwater collection well lid 10, the rainwater collection well lid 10 is communicated with the rainwater pipe 11 (the rainwater collection well lid 10 is below wrapped with the rainwater pipe 11 by concrete, i.e. the rainwater pipe 11 is completely wrapped with concrete, and the end of the rainwater pipe 11 is completely embedded in the concrete, so as to protect the rainwater pipe 11, fix the rainwater pipe 11, and prevent the rainwater pipe 11 from floating up), and the rainwater pipe 11 is laid under the road surface beside the mountain.

In this embodiment, the thickness of the medium sand leveling layer 5 is 50 mm.

In this embodiment, 200g/m is used for the first nonwoven fabric layer 6 and the second nonwoven fabric layer 8 ²The nonwoven fabric of (1).

In this embodiment, the rubble block retaining wall 2 is constructed by using M10 cement mortar, and the natural stone coping 3 is bonded to the upper surface of the rubble block retaining wall 2 by cement mortar.

In this embodiment, the waterproof roll layer 7 is made of a polymer self-adhesive film waterproof roll.

In this embodiment, the thickness of the sandy soil layer 9 is 300 mm.

In this embodiment, the rainwater is collected well lid 10 and is adopted the aperture to collect the well lid for 60 mm's plain noodles bluestone rainwater, the thickness that well lid 10 was collected to the rainwater is 80 mm.

In this embodiment, the rain pipe 11 is a rain pipe with a diameter of 300 mm.

In this embodiment, the rainwater storage tank is internally provided with a submerged plant layer and/or a landscape plant layer. The rainwater storage tank can be simply purified by utilizing the submerged plant layer, and a better landscape effect is achieved by utilizing the landscape plant layer. Wherein the submerged plant layer is used for being fixedly connected with the bottom of the rainwater storage tank, and the landscape plant layer floats on the surface of the water body.

The embodiment can be suitable for the periphery of a slope at the upstream of the lake outlet of the rainwater pipe 11 in the mountain forest environment of the urban park, namely the rainwater pipe 11 is directly communicated into the lake through the ground below the road surface at the lake edge, and the rainwater in the rainwater storage pond is converged into the lake area; the rainwater pipe can also be suitable for the periphery of a side slope without a lake outlet beside a road surface, namely the rainwater in the rainwater pipe 11 is connected into a municipal pipeline through the ground lower part of the road surface; when a downward extending slope body is arranged on the other side of the road surface, crushed stones 16 (shown in figure 1) with the grain diameter of 50-100mm can be paved on the downward extending slope body, rainwater can flow into the ground through the crushed stones 16 with the grain diameter of 50-100mm, plants can also be planted around the crushed stones 16 with the grain diameter of 50-100mm, and rainwater in the rainwater pipe 11 can be directly gathered on the crushed stones to provide the irrigation function for the plants.

The natural stone roof pressing 3 (namely the left natural stone roof pressing 3 in fig. 1) in the high side pool wall of this embodiment stabilizes the soil body on one side of the rainwater storage pool as the slope protection, so that the soil body can not collapse into the rainwater storage pool due to height difference. The polymer self-adhesive film waterproof roll can prevent rainwater infiltration, and the non-woven fabric can filter silt stones in water, so that the waterproof roll layer 7 is protected from being scraped.

The rainwater of this embodiment is stored temporarily in rainwater regulation pond, overflows rainwater regulation pond when the rainwater, collects well lid 10 through the natural stone gap (being the natural stone gap on the natural stone on the right side in fig. 1 and pressing top 3) in the pool wall that hangs down and flows through the rainwater, and after the rainwater was collected well lid 10 and is filtered mountain stone silt, get into downspout 11, finally arrange into municipal administration pipeline or flow into lakeoutlet.

The construction mode at the bottom of the rainwater regulation pond of this embodiment does: the method comprises the steps of firstly leveling and rolling the foundation of the original mountain slope, stabilizing pressure by using static pressure of a vibratory roller for the first time in the rolling process, and then vibrating and compacting, wherein the rolling times are about 6-8 times, so that the rolling compactness of the foundation is not less than 93%. After compaction, the foundation can be further processed, a 100mm thick gravel cushion layer is laid, the effect of diffusion stress can be played, meanwhile, the effect of drainage can be played, and consolidation and settlement of a lower soil layer are accelerated. Is laid completelyCompacting the broken stone for 2-3 times after the formation to ensure the stability; thereby forming the ground layer 4 (of course, a 100-thick gravel cushion may not be laid). And paving medium sand with the thickness of 50mm on the compacted ground base layer 4 for leveling to form a medium sand leveling layer 5. Rear pavement 200g/m ²Forming a first nonwoven layer 6 protecting the waterproof web layer 7. In order to ensure the water resistance of the pool, a high-molecular self-adhesive film waterproof coiled material is laid, and a waterproof coiled material layer 7 is formed by single-layer laying. And a non-woven fabric of 200g/m2 is further laid on the waterproof layer to protect the waterproof layer, so that the second non-woven fabric layer 8 is formed. Finally, a sandy soil layer with the thickness of 300mm is paved.

The rainwater regulation pond pool wall of this embodiment adopts M10 cement mortar to build rubble building block retaining wall 2, and natural stone roof pressing 3 is as the bank protection, stabilizes the pool wall wherein. The mountain natural stone blocks 1 are laid on a slope connected with the top of a high side pool wall, as shown in fig. 1, and the mountain natural stone blocks 1 can effectively prevent water and soil loss of the slope. And directly setting the soil foundation of the retaining wall foundation pit for masonry by slurry. The foundation is built out of the ground and then backfilled and tamped, and top drainage and seepage-proofing facilities are made to prevent the foundation from being soaked and softened. When the landslide is possibly induced by the comprehensive excavation of the retaining wall foundation pit, the segmental excavation is adopted, wherein one section is excavated firstly, and the next section is excavated after grouting and backfilling. The back filling of the wall is backfilled according to design requirements, the back filling is tamped layer by layer, the inclined retaining wall is raised, when the strength of the masonry reaches 70% of the design strength, the back filling is immediately tamped layer by layer, and attention is paid to the fact that the wall body is not affected by tamping, so that the stability of the wall body in the construction process is guaranteed.

As shown in fig. 1, the lateral wall of the road surface beside the mountain slope of this embodiment is provided with a dry-inserted stone retaining wall 12 and a smooth surface bluestone road edge stone 13, the smooth surface bluestone edge stone 13 is laid above the dry-inserted stone retaining wall 12, the natural stone block of the lateral pool wall at the lower part of the rainwater storage pool is pressed against the top 3 and is connected with the smooth surface bluestone edge stone 13 of the lateral wall of the road surface through the rainwater collection well cover 10, the rainwater collection well cover 10 is communicated with a rainwater pipe 11 below, and the rainwater pipe 11 is located in the underground part of the road surface. The corresponding above-ground portion comprises, from bottom to top, a 150mm thick natural graded sand mat 14 and a 60mm thick C15 sand-free macroporous concrete pavement 15. Wherein the mortarless retaining wall 12, the smooth faced cordierite road edge stone 13 and the 60mm thick C15 sand-free macroporous concrete pavement 15 are part of the pavement described in this embodiment.

The rainwater is through inside the 1 flow direction rainwater regulation pond of mountain natural stone on the mountain slope, mountain natural stone 1 is laid on the mountain slope, can effectually prevent the soil erosion and water loss of mountain slope, rainwater regulation pond rainwater overflows the back, collect well lid 10 through the rainwater of flowing through of the natural stone gap in the pool wall that hangs down, rainwater is collected well lid 10 and is filtered after the mountain stone silt, get into downspout 11, the rainwater flows into on the rubble 16 that the particle size is 50-100mm from downspout 11 at last, partly infiltration underground irrigation plant, another part can flow into the lake outlet or connect municipal rainwater pipeline.

The storage that this embodiment can solve rainwater in the park massif environment is collected and is recycled the problem. Meanwhile, the water purification effect is effectively achieved, and a better landscape effect is achieved.

The protection scope of the present invention includes but is not limited to the above embodiments, the protection scope of the present invention is subject to the claims, and any replacement, deformation, and improvement that can be easily conceived by those skilled in the art made by the present technology all fall into the protection scope of the present invention.

Claims

1. The utility model provides a rainwater regulation instrument suitable for in park mountain forest environment, is including building rainwater regulation pond and drainage system on the mountain side slope, its characterized in that:

the rainwater storage tank is characterized in that a ground base layer, a middle sand leveling layer, a first non-woven fabric layer, a waterproof roll material layer, a second non-woven fabric layer and a sandy soil layer are sequentially arranged at the bottom of the rainwater storage tank from bottom to top, the ground base layer is formed by leveling a mountain slope and rolling compactly, the middle sand leveling layer is laid on the compactly rolled ground base layer, the first non-woven fabric layer is laid on the middle sand leveling layer, the waterproof roll material layer is laid on the first non-woven fabric layer, the second non-woven fabric layer is laid on the waterproof roll material layer, and the sandy soil layer is laid on the second non-woven fabric layer;

the wall of the rainwater storage tank sequentially comprises a rubble block retaining wall and a natural stone coping from bottom to top, a retaining wall foundation pit is excavated on a mountain slope around the bottom of the rainwater storage tank, the rubble block retaining wall is built in the retaining wall foundation pit, and the natural stone coping is laid on the upper surface of the rubble block retaining wall so as to form the wall of the rainwater storage tank; the heights of the peripheral pool walls of the rainwater storage pool are different, wherein the top of the high pool wall is connected with a hillside, mountain natural stones are paved on the connected hillside, and the top of the low pool wall is connected with a drainage system;

the drainage system comprises a rainwater collection well cover and a rainwater pipe, wherein a natural stone overflow port is arranged on a natural stone pressing top in a pool wall at the lower part of the rainwater storage pool, one end of the natural stone overflow port is communicated with the rainwater storage pool, the other end of the natural stone overflow port is communicated with the rainwater collection well cover, the rainwater collection well cover is communicated with the rainwater pipe, and the rainwater pipe is laid below a road surface beside a mountain side slope.

2. The rainwater storage tool suitable for use in park mountain forest environment of claim 1, wherein: the thickness of the medium sand leveling layer is 50 mm.

3. The rainwater storage tool suitable for use in park mountain forest environment of claim 2, wherein: the first non-woven fabric layer and the second non-woven fabric layer are both 200g/m ²The nonwoven fabric of (1).

4. The rainwater storage tool suitable for use in park mountain forest environment of claim 3, wherein: the rubble block retaining wall is built by M10 cement mortar, and the natural stones are pressed and bonded on the upper surface of the rubble block retaining wall through cement mortar.

5. The rainwater storage tool suitable for use in park mountain forest environment of claim 4, wherein: the waterproof roll layer is made of a high-polymer self-adhesive film waterproof roll.

6. The rainwater storage tool suitable for use in park mountain forest environment of claim 5, wherein: the thickness of the sandy soil layer is 300 mm.

7. The rainwater storage tool suitable for use in park mountain forest environment of claim 1, wherein: the rainwater is collected the well lid and is adopted the aperture to be 60 mm's plain noodles bluestone rainwater collection well lid, the thickness that the well lid was collected to the rainwater is 80 mm.

8. The rainwater storage tool suitable for use in park mountain forest environment of claim 7, wherein: the rainwater pipe is 300mm in diameter.

9. The rainwater storage tool suitable for use in park mountain forest environment of claim 1, wherein: and a submerged plant layer and/or a landscape plant layer are/is arranged in the rainwater storage tank.