A stepped urban lakeside ecological restoration system

Abstract

The utility model relates to the technical field of water ecological restoration, and in particular to a stepped urban lake shore zone ecological restoration system, comprising a first step, a second step and a third step, wherein the third step comprises a base, an ecological gabion and mortar-laid blocks, wherein the base is cast on the ground of a lake area; the ecological gabion is placed on the top of the base; the mortar-laid blocks are laid on the top of the ecological gabion, and a slope is arranged on the side of the mortar-laid blocks close to the lake area, and the upper end of the slope is inclined toward the direction of the lake area; the utility model proposes a stepped urban lake shore zone ecological restoration system, which is convenient for guiding water waves to the lake area through the slope by arranging a slope on the side of the mortar-laid blocks close to the lake area, so as to reduce the impact of water waves on the soil between the steps, and is not prone to soil and water loss, which is beneficial to the protection of the soil between the steps.

Description

Technical Field

[0001] The utility model relates to the technical field of water ecological restoration, in particular to a stepped urban lake shore ecological restoration system. Background Art

[0002] The lakeside belt is an important part of the urban lake water ecosystem. It not only has landscape functions, but also has ecological protection functions such as biodiversity protection, bank protection and slope consolidation, and water purification. It is a natural barrier to protect the lake water ecosystem. Restoration of the lakeside belt is one of the effective methods to manage and protect the lake water environment. If its structure is damaged and its ecological function is destroyed, it will not only destroy the lakeside ecosystem, but also threaten the lake water ecology and water environment safety.

[0003] For example, the utility model with publication number CN214993523U discloses a stepped purification isolation zone, comprising n stepped purification modules, the purification modules comprising gabion blocks and filling modules, the gabion blocks and the filling modules abutting against each other, the gabion blocks of the upper level are close to the filling modules of the lower level, the filling modules comprise a planting soil layer, a cinder layer, a limestone layer and a block stone layer laid in sequence from top to bottom, the gabion blocks comprise mortared block stones and Binge gabions, the mortared block stones are arranged directly below the Binge gabions, the upper surface of the mortared block stones is flush with the upper surface of the block stone layer, and the Binge gabions are flush with the upper edge of the planting soil layer.

[0004] As for the technical solution mentioned above, its focus is on intercepting and purifying surface pollution, but it ignores soil and water conservation. When the water waves are large, the soil between the steps close to the lake water is easily impacted by the water waves and soil loss occurs, which is not conducive to the protection of the soil between the steps. Utility Model Content

[0005] In view of this, the utility model proposes a stepped urban lake shore ecological restoration system, which arranges a slope on the side of the mortar-laid block stone close to the lake area, so as to facilitate directing water waves to the lake area through the slope, thereby reducing the impact of water waves on the soil between the steps, not easily causing soil erosion, and being beneficial to the protection of the soil between the steps.

[0006] The technical solution of the utility model is achieved in this way:

[0007] The utility model provides a stepped urban lakeside ecological restoration system, comprising a first step, a second step and a third step.

[0008] The first step, the second step and the third step are arranged in sequence from the shore to the lake area, and the elevations decrease in sequence;

[0009] The third step includes a base, an ecological gabion and mortar blocks, wherein:

[0010] The base is poured on the ground in the lake area;

[0011] The ecological gabion is placed on top of the base;

[0012] The mortar-laid blocks are laid on the top of the ecological gabion, and a slope is arranged on the side of the mortar-laid blocks close to the lake area, and the upper end of the slope is inclined toward the direction of the lake area.

[0013] On the basis of the above technical solution, preferably, the lower end of the slope is vertically aligned with the side of the ecological gabion close to the lake area.

[0014] On the basis of the above technical solution, preferably, the base includes a plain concrete cushion layer and a steel concrete foundation, wherein:

[0015] The plain concrete cushion layer is poured on the ground;

[0016] The steel concrete foundation is poured on top of the plain concrete cushion layer;

[0017] The ecological gabion is arranged on the top of the steel concrete foundation.

[0018] On the basis of the above technical solution, preferably, concrete is filled between the ecological gabion and the reinforced concrete foundation.

[0019] On the basis of the above technical solution, preferably, the third step also includes planting soil, wherein:

[0020] The planting soil is filled between the mortar blocks and the second step.

[0021] On the basis of the above technical solution, preferably, the third level ladder also includes terrestrial plants, wherein:

[0022] The terrestrial plants are planted on the planting soil.

[0023] On the basis of the above technical solution, preferably, it also includes emergent plants, wherein,

[0024] The emergent plants are arranged on the side of the base and planted on the ground of the lake area.

[0025] On the basis of the above technical solution, preferably, the third step also includes geotextile, wherein:

[0026] The geotextile is laid on a surface of the mortar-laid block stone close to the planting soil.

[0027] On the basis of the above technical solution, preferably, the third step further includes stress relief piles, wherein:

[0028] A plurality of stress relief piles are fixedly arranged on the top of the planting soil and close to one side of the second step;

[0029] A plurality of the stress relief piles are parallel to the mortar-laid blocks.

[0030] On the basis of the above technical solution, preferably, the second step and an adjacent stress relief pile are mutually supported.

[0031] The utility model has the following beneficial effects compared with the prior art:

[0032] (1) By setting a slope on the side of the mortar-laid block stone close to the lake area, and with the upper end of the slope tilted toward the lake area, it is convenient to guide the water waves toward the lake area through the slope, thereby reducing the impact of the water waves on the soil between the steps, and not easily causing soil erosion, which is beneficial to the protection of the soil between the steps.

[0033] (2) By planting emergent plants on the lake ground on the side of the base, it is convenient to disperse and slow down the speed of water flow through the emergent plants, which helps to reduce waves and turbulence on the lake surface and is beneficial to the protection of the soil between the steps.

[0034] (3) By arranging the lower end of the slope to be vertically aligned with the side of the ecological gabion close to the lake area, it is beneficial for water waves to flow on the slope and improves the guiding effect of the slope on water waves.

[0035] (4) By laying geotextile on the side of the mortar masonry stone close to the planting soil, the mortar masonry stone can be separated from the planting soil, which can diffuse, transfer and decompose the concentrated stress, prevent the soil from being damaged by external forces, and protect the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 This is a schematic diagram of the structure of a stepped urban lakeside ecological restoration system of the utility model;

[0038] Figure 2 It is a partial structural schematic diagram of a stepped urban lakeside ecological restoration system of the utility model;

[0039] In the figure: 1. First step; 2. Second step; 3. Third step; 4. Emergent plants; 31. Base; 32. Ecological gabion; 33. Mortared block stone; 34. Planting soil; 35. Land plants; 36. Geotextile; 37. Stress relief piles; 301. Slope; 311. Plain concrete cushion; 312. Steel concrete foundation. DETAILED DESCRIPTION

[0040] The following will be combined with the specific implementation of the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] like Figure 1-2 As shown, the utility model is a stepped urban lake lakeside ecological restoration system, comprising a first step 1, a second step 2 and a third step 3, wherein the first step 1, the second step 2 and the third step 3 are arranged in sequence from the shore to the lake area, and the elevations decrease in sequence, wherein the height between the steps is 200-300 mm, the step width is set to 1.2 m, and the height of the third step 3 is greater than or equal to the highest water level of the lake area.

[0042] For example, CN214993523U discloses a stepped purification isolation zone. When there are waves on the lake surface, the waves will hit the soil near the lake area, causing soil erosion. To solve this problem, the utility model provides a stepped urban lake shore ecological restoration system with a diversion structure to redirect the waves into the lake area and reduce the impact of the waves on the soil between the steps.

[0043] The diversion structure is arranged in the third step 3. Specifically, the third step 3 includes a base 31, an ecological gabion 32 and a mortar-laid block stone 33. The base 31 is cast on the ground of the lake area, the ecological gabion 32 is placed on the top of the base 31, the mortar-laid block stone 33 is built on the top of the ecological gabion 32, and a slope 301 is arranged on the side of the mortar-laid block stone 33 close to the lake area. The upper end of the slope 301 is inclined toward the direction of the lake area, and the lower end is vertically aligned with the side of the ecological gabion 32 close to the lake area, such as Figure 2 As shown, the cross section of the mortar-laid block stone 33 is in the shape of an inverted right-angled trapezoid, with the hypotenuse of the right-angled trapezoid facing the lake area. When water waves hit the mortar-laid block stone 33, the water waves flow along the inclined surface 301 of the mortar-laid block stone 33 under the guidance of the inclined surface 301, so that the water waves are away from the soil between the steps, thereby reducing the impact of the water waves on the soil between the steps, which is beneficial to soil and water conservation. Furthermore, a number of protrusions are arranged on the surface of the inclined surface 301 to reduce the force of the water waves and to cut the water waves to reduce the destructive power of the water waves.

[0044] In order to improve the stability of the third step 3, the third base 31 includes a plain concrete cushion layer 311 and a steel concrete foundation 312, wherein the plain concrete cushion layer 311 is cast on the ground, and its construction thickness can be 100 mm, and the corresponding prefabricated steel concrete foundation 312 can be a 300 mm thick C20 steel concrete building; the steel concrete foundation 312 is cast on the top of the plain concrete cushion layer 311; the ecological gabion 32 is arranged on the top of the steel concrete foundation 312; the mortar block stone 33 is cast on the top of the ecological gabion 32. Specifically, concrete is filled between the ecological gabion 32 and the steel concrete foundation 312, and the ecological gabion 32 is fixed to the top of the steel concrete foundation 312 by concrete. When the third step 3 is fixed, the structure is relatively firm.

[0045] In the above structure, the ecological gabion 32 can enhance the soil retaining and drainage effects of the third step 3, and avoid the occurrence of instability of the embankment slope.

[0046] In order to further protect the water and soil and beautify the environment, the third-level terrace 3 also includes planting soil 34 and land plants 35, wherein the planting soil 34 is filled between the mortar block stone 33 and the second-level terrace 2, and the land plants 35 are planted on the planting soil 34. The land plants 35 can be Lythrum salicaria. By planting the land plants 35, the impact of water waves on the planting soil 34 can be effectively reduced. At the same time, during the rainy season, the impact of water flow on the planting soil 34 can also be reduced, which is beneficial to water body protection.

[0047] In addition, a plurality of stress relief piles 37 are fixedly arranged on the top of the planting soil 34 and on one side close to the second step 2, wherein Figure 2 As shown, the stress relief piles 37 are parallel to the mortar-laid blocks 33 and are arranged in two rows. The second step 2 and an adjacent stress relief pile 37 are mutually supported. During the rainy season, the stress relief piles 37 are used to buffer the water flow, which is beneficial to the protection of the water body.

[0048] At the same time, emergent plants 4, such as cattail and pickerel grass, are planted on the ground in the lake area on the side of the base 31. The height of the planted emergent plants 4 is greater than the water depth, that is, the tops of the emergent plants 4 are exposed above the water surface. The emergent plants 4 are used to reduce waves and turbulence on the lake surface, which is beneficial to the protection of the soil between the steps.

[0049] In addition, a geotextile 36 is laid on the side of the mortar-laid stone 33 close to the planting soil 34, that is, a geotextile 36 is set between the mortar-laid stone 33 and the planting soil 34. The mortar-laid stone 33 and the planting soil 34 are separated by the geotextile 36, which can diffuse, transfer and decompose the concentrated stress, thereby preventing the soil from being damaged by external forces and protecting the soil.

[0050] In the above structure, the structures of the first step 1, the second step 2 and the third step 3 are similar, except that the mortar blocks 33 in the first step 1 and the second step 2 are rectangular blocks, and the green plants planted thereon can be the above green plants or other types of green plants, such as Figure 2 As shown, a bevel is provided at the sharp corner of one end of the rectangular block near the stress relief pile 37, and a V-shaped water flow channel is formed between the bevel and the corresponding stress relief pile 37. During the rainy season, when water flows from the upper step to the lower step, the water first passes through the V-shaped water flow channel and then flows onto the planting soil 34, thereby achieving force buffering, reducing the impact of water flow on the soil, and being beneficial to soil and water conservation.

[0051] The use method of the stepped urban lakeside ecological restoration system of the utility model is as follows:

[0052] Before construction, dredging machinery is used to dredge the construction site, clean up the silt on the ground and tidy up the mud surface line after dredging, such as Figure 1 As shown, the mud surface line is arranged into a stepped shape and extended to the lake area, and then the first step 1, the second step 2 and the third step 3 are cast respectively. Then, according to the shape of the mud surface line, clay is backfilled on the mud surface line and compacted. After compaction, the base 31 is in the clay, and backfill soil is filled between the second steps 2 and between the second steps 2 and the third steps 3. Planting soil 34 is filled on the backfill soil, and planting soil is filled on the first step 1. After that, the corresponding plants are planted.

[0053] When laying the mortar-laid blocks 33, the side of the mortar-laid blocks 33 facing the lake surface is laid in an inclined shape to form a slope 301. When there are waves on the lake surface, the waves impact the mortar-laid blocks 33. Under the guidance of the slope 301, the waves flow along the slope 301 of the mortar-laid blocks 33, so that the waves re-enter the lake area and then stay away from the soil between the steps. This can reduce the impact of the waves on the soil between the steps, which is beneficial to soil and water conservation.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stepped urban lakeside ecological restoration system, comprising a first step (1), a second step (2) and a third step (3), in, The first step (1), the second step (2), and the third step (3) are arranged in sequence from the shore to the lake area, and their elevations decrease in sequence; The third step (3) comprises a base (31), an ecological gabion (32) and mortar-laid blocks (33), wherein: The base (31) is cast on the ground in the lake area; The ecological gabion (32) is placed on top of the base (31); The mortar-laid blocks (33) are built on the top of the ecological gabion (32), and a slope (301) is provided on the side of the mortar-laid blocks (33) close to the lake area, and the upper end of the slope (301) is inclined toward the direction of the lake area.

2. The stepped urban lakeside ecological restoration system according to claim 1, characterized in that: The lower end of the inclined surface (301) is vertically aligned with the side of the ecological gabion (32) close to the lake area.

3. A stepped urban lakeside ecological restoration system as claimed in claim 2, characterized in that: The base (31) includes a plain concrete cushion layer (311) and a steel concrete foundation (312), wherein: The plain concrete cushion layer (311) is poured on the ground; The steel concrete foundation (312) is poured on top of the plain concrete cushion layer (311); The ecological gabion (32) is arranged on the top of the reinforced concrete foundation (312).

4. A stepped urban lakeside ecological restoration system as claimed in claim 3, characterized in that: Concrete is filled between the ecological gabion (32) and the reinforced concrete foundation (312).

5. The stepped urban lakeside ecological restoration system according to claim 1, characterized in that: The third step (3) further comprises planting soil (34), wherein: The planting soil (34) is filled between the mortar block stone (33) and the second step (2).

6. A stepped urban lakeside ecological restoration system as claimed in claim 5, characterized in that: The third level ladder (3) also includes land plants (35), wherein: The terrestrial plants (35) are planted on the planting soil (34).

7. The stepped urban lakeside ecological restoration system according to claim 1, characterized in that: Also included are emergent plants (4), wherein: The emergent plants (4) are arranged on the side of the base (31) and planted on the ground in the lake area.

8. The stepped urban lakeside ecological restoration system according to claim 5, characterized in that: The third step (3) further comprises a geotextile (36), wherein: The geotextile (36) is laid on a surface of the mortar-laid block stone (33) close to the planting soil (34).

9. The stepped urban lakeside ecological restoration system according to claim 5, characterized in that: The third step (3) further comprises a stress relief pile (37), wherein: A plurality of stress relief piles (37) are fixedly arranged on the top of the planting soil (34) and close to one side of the second step (2); A plurality of stress relief piles (37) are parallel to the mortar-laid blocks (33).

10. The stepped urban lakeside ecological restoration system according to claim 9, characterized in that: The second step (2) and an adjacent stress relief pile (37) are mutually supported.

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