Fancy carp pool and construction method thereof

Abstract

The invention relates to the technical field of pools, and provides a fancy carp pool and a construction method thereof.The fancy carp pool comprises a bottom wall, an outer wall of a closed curve structure is bricked on the outer edge of the bottom wall, an ornamental table is arranged on the inner concave face of the outer wall, the ornamental table comprises an arc brick wall, and the two ends of the arc brick wall and the outer wall form a closed structure; a seat is bricked on the inner wall of the arc brick wall, a prefabricated table is fixedly installed in the center of the arc brick wall, and an opening groove communicated with the interior of the arc brick wall is formed in the inner concave face of the outer wall. The outer wall adopts a bricking mode to form a closed curve structure, the bricking construction mode can greatly reduce the construction cost and the construction time, and the curve structure of the outer wall enables the wall surface to have certain tension, so that the outer wall can bear higher water pressure, and the stability of the outer wall is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water pools, and in particular to a koi fish pool and a construction method thereof. Background Art

[0002] The so-called ornamental fish pond is a fish pond that creates a natural environment for the harmonious growth of ornamental fish, algae, microorganisms, higher aquatic plants, and benthic animals from a professional and technical perspective. It includes fish ponds in high-end villas, landscape fish ponds in park communities, and self-built fish ponds. At present, the construction of ornamental fish ponds is mainly completed by integral concrete pouring.

[0003] For example, the Chinese patent publication number CN104895379B discloses "a reinforced concrete pool, comprising a pool bottom and a pool wall fixedly connected to the pool bottom, wherein the pool wall comprises an inner wall, an outer wall, and a group of vertical ribs connecting the inner wall and the outer wall, and a cavity is left between adjacent vertical ribs, and the outer wall comprises a group of prefabricated reinforced concrete slabs, wherein the prefabricated reinforced concrete slabs are fixedly connected in sequence from bottom to top in the vertical direction; and adjacent prefabricated reinforced concrete slabs are fixedly connected in the horizontal direction."

[0004] However, in the process of implementing the relevant technology, the above patents have some technical defects: The pool of the above patent adopts the method of integral casting, and the concrete casting structure not only has high construction cost, but also the curing time of the concrete casting process is too long, resulting in high economic and time costs of construction; During the construction of the above patent, the bottom wall of the pool adopts a cast concrete cushion layer. In order to ensure uniform water pressure in various areas inside the pool later, it is necessary to ensure that the bottom wall of the pool remains level. However, the construction site is generally uneven, which requires a lot of time to level the bottom wall of the pool, further slowing down the construction speed. In view of this, the present invention proposes a koi fish pond and a construction method thereof. Summary of the invention

[0005] The invention provides a koi fish pond and a construction method thereof, which solves the problem of high construction cost of integral casting and molding of the pond in the prior art.

[0006] The technical scheme of the present invention is as follows: a koi fish pond and a construction method thereof, comprising a bottom wall, an outer edge of the bottom wall being brick-built with an outer wall of a closed curve structure, the outer wall comprising a brickwork layer, the outer side of the brickwork layer being coated with a cement slurry base layer, the outer side of the cement slurry base layer being coated with a second mortar layer, the outer side of the second mortar layer being coated with a gravel slurry surface layer, the water-wading area of ​​the gravel slurry surface layer being coated with a waterproof layer, an observation platform being arranged on the inner concave surface of the outer wall, the observation platform being arranged in the concave area of ​​the bottom wall, the observation platform comprising an arc brickwork wall, the two ends of the arc brickwork wall forming a closed structure with the outer wall, the inner wall of the arc brickwork wall being brick-built with a sitting platform, a prefabricated table being fixedly installed at the center position of the arc brickwork wall, and an open groove communicating with the interior of the arc brickwork wall being opened on the inner concave surface of the outer wall.

[0007] Preferably, the bottom wall comprises a rammed earth layer, a drainage blind pipe is pre-buried inside the rammed earth layer, a concrete cushion layer is cast on the top surface of the rammed earth layer, and a water outlet pipe connected to the drainage blind pipe is pre-buried inside the concrete cushion layer.

[0008] Preferably, a special-shaped cushion layer is bricked in a low-lying area of ​​the concrete cushion layer, the special-shaped cushion layer is fitted with the inner wall of the exterior wall, and the outer side of the special-shaped cushion layer is coated with a first mortar layer.

[0009] Preferably, the thickness of the second mortar layer is 15-18 cm, and the thickness of the gravel slurry surface layer is 10-15 cm.

[0010] Preferably, the waterproof layer is a blue polymer cement waterproof coating layer, and the thickness of the waterproof layer is 2-3 cm.

[0011] Preferably, the viewing platform is arranged in a concave area of ​​the bottom wall to ensure that the bottom surface of the bottom wall is flat.

[0012] Preferably, a reinforcement platform is provided at the bottom end of the inner side of the outer wall, and the reinforcement platform includes a concave concrete layer, the concave concrete layer is fixedly connected to the bottom end of the inner wall of the outer wall, a convex concrete layer is cast on the outer side of the concave concrete layer through a formwork, a buffer cavity is opened between the concave concrete layer and the convex concrete layer, a plurality of water inlets communicating with the interior of the buffer cavity are opened at the top end of the convex concrete layer, and a plurality of water outlets communicating with the interior of the buffer cavity are opened at the bottom end of the convex concrete layer.

[0013] The present invention also provides a construction method of a koi fish pond, comprising the following steps: S1: Survey and lay out the scope of the construction area and the material storage area according to the survey control points. The scope of the construction area is slightly larger than the actual construction scope and is marked with white lime or colored flags; S2: Site cleaning: remove obstacles in and around the construction area, clean and level the original ground, remove all silt, tree roots, grass, humus, etc. on the original ground within the scope, and clean up the topsoil; S3: Backfill and tamp the soil. After pre-burying the drainage blind pipe, backfill the soil. Then use a manual tamping machine to tamp the foundation, especially the backfill of the drainage blind pipe, to ensure that the compaction coefficient is 93%; S4: Concrete cushion pouring: pour 10 cm thick commercial concrete on the rammed earth. In order to preserve the original ecology, the trees in the construction area are preserved. Before pouring, the cushion formwork and the formwork for the preserved trees are reinforced to ensure neat edges. S5: Secondary setting out: After the curing period of the concrete cushion is over, the setting out and positioning are carried out according to the actual situation of the number and location of the trees retained on site and the design drawings, and the special-shaped parts are marked with red spray paint; S6: Wall construction: first build the special-shaped bottom wall according to the marked auxiliary line, and then position and shape it to form a brickwork layer (21). The brick wall should be built inside and outside, with staggered joints. The brick joints should be horizontal and vertical. The thickness of the mortar joints should not be less than 8 mm and not more than 12 mm. The verticality deviation between each layer of wall should not exceed 5 mm. Apply cement slurry base to the outside of the brickwork layer to close the bottom. S7: Apply the surface layer. First, apply a layer of plain cement slurry on the base layer, then apply the bottom mortar layer by layer to form the second mortar layer. The bottom mortar should be scraped flat with a ruler and rubbed with a wooden crab. After the mortar is finally set, sprinkle water for maintenance. Then, scrape a layer of plain cement slurry on the second mortar layer, apply the gravel slurry in two layers from bottom to top, and then flatten and compact the gravel slurry layer to form the gravel slurry surface layer; S8: Waterproof construction, apply polymer cement waterproof coating on the water-wet part of the wall to form a waterproof layer. The specific steps are as follows: (1) Use 10-15 mm wide masking paper to paste the outline at the highest point of the water on the inner side of the wall according to the designed water depth; (2) Apply the first coat of emulsion to the area below the contour line, from top to bottom and from inside to outside, without missing any spots; (3) After drying for 24 hours, apply a second coat of emulsion to form a complete waterproof layer; S9: Water-tightness test: after drying for 24 hours, conduct a 24-hour water-tightness test. The water discharge height should not be less than 30 mm. It is qualified if there is no leakage within 24 hours.

[0014] Preferably, in S7, after applying the gravel slurry, it is necessary to use a brush dipped in water to brush off the surface cement slurry, re-compact and smooth it, and then repeatedly brush and press 3-4 times in sequence. When the surface layer begins to set, and the stone particles cannot be removed by brushing with water, one person can use a brush dipped in water to brush the cement slurry, and the other person can use a water pipe to spray water 20 cm from the ground surface. After the surface is rinsed clean and the stones are removed, the surface layer can be thoroughly rinsed with clean water and sealed. A special person is assigned to spray water for maintenance. If cement slurry residue is found on the surface of the stone after maintenance is completed, oxalic acid can be used to brush it off. Note that the oxalic acid residue must be diluted and discharged into the sewer in time, and it must not flow into the greening area.

[0015] Preferably, in S8, before the polymer cement waterproof coating is applied to the wall, the wall needs to be cleaned and the wall surface should be solid without sand, dust or hollows.

[0016] The working principle and beneficial effects of the present invention are: 1. The exterior wall is constructed by brickwork to form a closed curved structure. Compared with the steel structure casting, the brickwork construction method can greatly reduce the construction cost and construction time. The curved structure of the exterior wall 2 makes the wall surface have a certain tension, which enables the exterior wall to withstand the vertical pressure of high water pressure, thereby improving the compressive strength of the brickwork exterior wall to make up for the defect of insufficient vertical compressive strength of the flat brick wall; 2. A viewing platform is set up in the concave area of ​​the bottom wall, which not only allows tourists to watch the fish in the pool from a close distance, but also ensures that the bottom surface of the pool wall is flat, avoiding the problem of excessive local water pressure caused by water accumulation in the concave area of ​​the pool. The entire pool structure can be applied to different terrains, and there is no need to level the bottom wall during construction, which greatly reduces the construction difficulty and thus shortens the construction time; 3. The special-shaped cushion layer can raise the low-lying area of ​​the concrete cushion layer, so as to avoid the problem of high local water pressure caused by the formation of deep water areas in the low-lying areas of the concrete cushion layer. At the same time, the special-shaped cushion layer can improve the compressive resistance of the low-lying areas of the concrete cushion layer; 4. Since the water pressure at the bottom of the pool is the greatest, the concave concrete layer can improve the compressive resistance of the bottom of the outer wall. Water is introduced into the buffer cavity through the water inlet. At this time, the water inside the buffer cavity will exert pressure on the inner wall of the convex concrete layer. At the same time, the water outside the buffer cavity exerts pressure on the outer wall of the convex concrete layer. This makes the internal and external water pressures of the convex concrete layer offset each other, and the convex concrete layer can strengthen the overall strength of the outer wall, thereby further improving the compressive resistance of the outer wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a structural schematic diagram of a koi fish pond of the present invention; Figure 2 It is a structural schematic diagram of the viewing platform of the present invention; Figure 3 It is a schematic structural diagram of the bottom wall of the present invention; Figure 4 It is a structural schematic diagram of the exterior wall of the present invention; Figure 5 It is a structural schematic diagram of the reinforcement platform of the present invention.

[0019] In the figure: 1. bottom wall; 11. rammed earth layer; 12. concrete cushion layer; 13. outlet pipe; 14. drainage blind pipe; 15. special-shaped cushion layer; 16. first mortar layer; 2. exterior wall; 21. brickwork layer; 22. cement slurry base layer; 23. second mortar layer; 24. gravel slurry surface layer; 25. waterproof layer; 3. viewing platform; 31. arc brick wall; 32. sitting platform; 33. prefabricated table; 34. opening groove; 4. reinforcement platform; 41. concave concrete layer; 42. convex concrete layer; 43. water inlet; 44. water outlet; 45. buffer cavity. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1~Figure 5 As shown, this embodiment proposes a koi fish pond and a construction method thereof, comprising a bottom wall 1, an outer edge of the bottom wall 1 having an outer wall 2 with a closed curve structure made of bricks, the outer wall 2 comprising a brickwork layer 21, the outer side of the brickwork layer 21 being coated with a cement slurry base layer 22, the outer side of the cement slurry base layer 22 being coated with a second mortar layer 23, the outer side of the second mortar layer 23 being coated with a gravel slurry surface layer 24, the wading area of ​​the gravel slurry surface layer 24 being coated with a waterproof layer 25, the second mortar layer 23 having a thickness of 15-18 cm, the gravel slurry surface layer 24 having a thickness of 10-15 cm, the waterproof layer 25 being a blue polymer cement waterproof coating layer, and the thickness of the waterproof layer 25 being 2-3 cm; the aesthetics of the outer wall 2 can be improved by using a combination of a blue polymer cement waterproof coating layer and a gravel slurry surface layer 24.

[0022] A viewing platform 3 is provided on the inner concave surface of the outer wall 2, and the viewing platform 3 is arranged in the concave area of ​​the bottom wall 1. The viewing platform 3 includes an arc brick wall 31, and the two ends of the arc brick wall 31 form a closed structure with the outer wall 2. The inner wall of the arc brick wall 31 is brick-built with a sitting platform 32, and a prefabricated table 33 is fixedly installed at the center position of the arc brick wall 31. An open groove 34 communicating with the interior of the arc brick wall 31 is opened on the inner concave surface of the outer wall 2. The bottom wall 1 includes a rammed earth layer 11, and a drainage blind pipe 14 is pre-buried on the inner side of the rammed earth layer 11. A concrete cushion layer 12 is cast on the top surface of the rammed earth layer 11, and a water outlet pipe 13 connected to the drainage blind pipe 14 is pre-buried on the inner side of the concrete cushion layer 12.

[0023] The outer wall 2 is constructed of a closed curved structure using brickwork. The brickwork construction method can greatly reduce construction costs and time compared to cast steel structures. The curved structure of the outer wall 2 gives the wall a certain tension, which enables the outer wall 2 to withstand high vertical pressure from water pressure, thereby improving the compressive strength of the brickwork outer wall to make up for the defect of insufficient vertical compressive strength of the flat brick wall. Furthermore, a viewing platform 3 is arranged in the concave area of ​​the bottom wall 1, which not only makes it convenient for tourists to watch the fish in the pool at close range, but also ensures that the bottom surface of the bottom wall 1 of the pool is flat, avoiding the problem of excessive local water pressure caused by water accumulation in the concave area of ​​the pool. The entire pool structure can be applied to different terrains. There is no need to level the bottom wall 1 during construction, which greatly reduces the construction difficulty and shortens the construction time.

[0024] Furthermore, a reinforcement platform 4 is provided at the bottom end of the inner side of the outer wall 2, and the reinforcement platform 4 includes a concave concrete layer 41, which is fixedly connected to the bottom end of the inner wall of the outer wall 2, and a convex concrete layer 42 is cast on the outer side of the concave concrete layer 41 through a formwork, and a buffer cavity 45 is opened between the concave concrete layer 41 and the convex concrete layer 42, and a plurality of water inlets 43 communicating with the interior of the buffer cavity 45 are opened at the top of the convex concrete layer 42, and a plurality of water outlets 44 communicating with the interior of the buffer cavity 45 are opened at the bottom end of the convex concrete layer 42.

[0025] Since the water pressure at the bottom of the pool is the greatest, the concave concrete layer 41 can improve the compressive resistance of the bottom end of the outer wall 2, and water is introduced into the buffer cavity 45 through the water inlet 43. At this time, the water inside the buffer cavity 45 will exert pressure on the inner wall of the convex concrete layer 42, and at the same time, the water outside the buffer cavity 45 exerts pressure on the outer wall of the convex concrete layer 42. This makes the internal and external water pressures of the convex concrete layer 42 offset each other, and the convex concrete layer 42 can strengthen the overall strength of the outer wall 2, thereby further improving the compressive resistance of the outer wall 2.

[0026] Furthermore, the low-lying area of ​​the concrete cushion layer 12 is bricked with a special-shaped cushion layer 15, the special-shaped cushion layer 15 is in contact with the inner wall of the exterior wall 2, and the outer side of the special-shaped cushion layer 15 is coated with a first mortar layer 16. The special-shaped cushion layer 15 can raise the low-lying area of ​​the concrete cushion layer 12, so as to avoid the problem of high local water pressure caused by the formation of deep water areas in the low-lying area of ​​the concrete cushion layer 12, and at the same time, the special-shaped cushion layer 15 can improve the compressive resistance of the low-lying area of ​​the concrete cushion layer 12.

[0027] Further, the exterior wall 2 includes a brickwork layer 21, the outer side of the brickwork layer 21 is coated with a cement slurry base layer 22, the outer side of the cement slurry base layer 22 is coated with a second mortar layer 23, the outer side of the second mortar layer 23 is coated with a gravel slurry surface layer 24, the wading area of ​​the gravel slurry surface layer 24 is coated with a waterproof layer 25, the thickness of the second mortar layer 23 is 15-18 cm, the thickness of the gravel slurry surface layer 24 is 10-15 cm, the waterproof layer 25 is a blue polymer cement waterproof coating layer, and the thickness of the waterproof layer 25 is 2-3 cm; The aesthetics of the exterior wall 2 can be improved by using a blue polymer cement waterproof coating layer and a gravel slurry surface layer 24 .

[0028] The present invention also provides a construction method of a koi fish pond, comprising the following steps: S1: Survey and lay out the scope of the construction area and the material storage area according to the survey control points. The scope of the construction area is slightly larger than the actual construction scope and is marked with white lime or colored flags; S2: Site cleaning: remove obstacles in and around the construction area, clean and level the original ground, remove all silt, tree roots, grass, humus, etc. on the original ground within the scope, and clean up the topsoil; S3: Backfill and tamp the soil. After pre-burying the drainage blind pipe 14, backfill the soil. Then use a manual tamping machine to tamp the foundation range, especially the backfill of the drainage blind pipe 14, to ensure that the compaction coefficient is 93%; S4: Concrete cushion pouring: pour 10 cm thick commercial concrete on the rammed earth. In order to preserve the original ecology, the trees in the construction area are preserved. Before pouring, the cushion formwork and the formwork for the preserved trees are reinforced to ensure neat edges. S5: Secondary setting out: After the curing period of the concrete cushion is over, the setting out and positioning are carried out according to the actual situation of the number and location of the trees retained on site and the design drawings, and the special-shaped parts are marked with red spray paint; S6: Wall masonry: first build the special-shaped bottom wall according to the marked auxiliary line, and then position and shape it to form a brickwork layer (21) on the top. The brick wall should be built inside and outside, with staggered joints. The brick joints should be horizontal and vertical. The thickness of the mortar joints should not be less than 8 mm and not more than 12 mm. The verticality deviation between each layer of the wall should not exceed 5 mm. Apply a cement slurry base layer 22 on the outside of the brickwork layer 21 to close the bottom. S7: Apply the surface layer. First, apply a layer of plain cement slurry on the base layer, and then apply the bottom mortar layer by layer to form the second mortar layer 23. The bottom mortar should be scraped flat with a ruler and rubbed with a wooden crab. After the mortar is finally set, sprinkle water for maintenance. Then, scrape a layer of plain cement slurry on the second mortar layer 23, apply the gravel slurry in two layers from bottom to top, and then flatten and compact the gravel slurry layer to form a gravel slurry surface layer 24. After applying the gravel slurry, you need to use a brush dipped in water to brush off the surface cement slurry, re-compact and smooth it, and then brush it repeatedly in sequence. , press 3-4 times, when the surface layer begins to set, if the stone particles cannot be removed by brushing with water, one person can use a brush dipped in water to brush the cement slurry, and another person can use a water pipe to spray water 20cm from the surface. After the surface is rinsed clean and the stones are out, the surface layer can be thoroughly rinsed with clean water and sealed. A special person is assigned to spray water for maintenance. If cement slurry is found on the surface of the stone after maintenance, it can be removed by brushing with oxalic acid. Note that the residual oxalic acid should be diluted in time and discharged into the sewer, and it must not flow into the greening plot; S8: Waterproof construction, coating the water-resistant part of the wall with a polymer cement waterproof coating to form a waterproof layer 25, the specific steps are as follows: (1) Before applying polymer cement waterproof coating on the wall, the wall needs to be cleaned and the wall surface should be solid without sand, dust or hollows. Then use 10-15 mm wide masking paper to paste the outline at the highest point of the water inside the wall according to the designed water depth; (2) Apply the first coat of emulsion to the area below the contour line, from top to bottom and from inside to outside, without missing any spots; (3) After drying for 24 hours, apply a second coat of emulsion to form a complete waterproof layer; S9: Water-tightness test: after drying for 24 hours, conduct a 24-hour water-tightness test. The water discharge height should not be less than 30 mm. It is qualified if there is no leakage within 24 hours.

[0029] The above are only preferred embodiments of the present invention and are 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 koi pond, comprising a bottom wall (1), characterized in that: The outer edge of the bottom wall (1) is brick-built with an outer wall (2) of a closed curve structure, the outer wall (2) comprising a brickwork layer (21), the outer side of the brickwork layer (21) is coated with a cement slurry base layer (22), the outer side of the cement slurry base layer (22) is coated with a second mortar layer (23), the outer side of the second mortar layer (23) is coated with a gravel slurry surface layer (24), the water-related area of ​​the gravel slurry surface layer (24) is coated with a waterproof layer (25), and the inner concave surface of the outer wall (2) is provided with a viewing An observation platform (3) is provided in a concave area of ​​a bottom wall (1), the observation platform (3) comprises an arc brick wall (31), both ends of the arc brick wall (31) and an outer wall (2) form a closed structure, the inner wall of the arc brick wall (31) is brick-built with a sitting platform (32), a prefabricated table (33) is fixedly installed at the center of the arc brick wall (31), and an opening groove (34) communicating with the interior of the arc brick wall (31) is provided on the inner concave surface of the outer wall (2).

2. A koi fish pond according to claim 1, characterized in that: The bottom wall (1) comprises a rammed earth layer (11), a drainage blind pipe (14) is pre-buried inside the rammed earth layer (11), a concrete cushion layer (12) is cast on the top surface of the rammed earth layer (11), and a water outlet pipe (13) connected to the drainage blind pipe (14) is pre-buried inside the concrete cushion layer (12).

3. A koi fish pond according to claim 2, characterized in that: A special-shaped cushion layer (15) is brick-laid in a low-lying area of ​​the concrete cushion layer (12); the special-shaped cushion layer (15) is in contact with the inner wall of the exterior wall (2); and the outer side of the special-shaped cushion layer (15) is coated with a first mortar layer (16).

4. A koi fish pond according to claim 3, characterized in that: The thickness of the second mortar layer (23) is 15-18 cm, and the thickness of the gravel slurry surface layer (24) is 10-15 cm.

5. A koi fish pond according to claim 4, characterized in that: The waterproof layer (25) is a blue polymer cement waterproof coating layer, and the thickness of the waterproof layer (25) is 2-3 cm.

6. A koi fish pond according to claim 5, characterized in that: The viewing platform (3) is arranged in a concave area of ​​the bottom wall (1) to ensure that the bottom surface of the bottom wall (1) is flat.

7. A koi fish pond according to claim 1, characterized in that: A reinforcement platform (4) is provided at the bottom end of the inner side of the outer wall (2), the reinforcement platform (4) comprising an inner concave concrete layer (41), the inner concave concrete layer (41) being fixedly connected to the bottom end of the inner wall of the outer wall (2), an outer convex concrete layer (42) being casted on the outer side of the inner concave concrete layer (41) through a formwork, a buffer cavity (45) being provided between the inner concave concrete layer (41) and the convex concrete layer (42), a plurality of water inlets (43) communicating with the interior of the buffer cavity (45) being provided at the top end of the convex concrete layer (42), and a plurality of water outlets (44) communicating with the interior of the buffer cavity (45) being provided at the bottom end of the convex concrete layer (42).

8. A method for constructing a koi pond according to claim 6, characterized in that: The steps include: S1: Survey and lay out the scope of the construction area and the material storage area according to the survey control points. The scope of the construction area is slightly larger than the actual construction scope and is marked with white lime or colored flags; S2: Site cleaning: remove obstacles in and around the construction area, clean and level the original ground, remove all silt, tree roots, grass, humus, etc. on the original ground within the scope, and clean up the topsoil; S3: backfill and tamp the soil, bury the drainage blind pipe (14) and then backfill, and then use a manual tamping machine to tamp the foundation range, especially the backfill of the drainage blind pipe (14), to ensure that the tamping coefficient is 93%; S4: Concrete cushion pouring: pour 10 cm thick commercial concrete on the rammed earth. In order to preserve the original ecology, the trees in the construction area are preserved. Before pouring, the cushion formwork and the formwork for the preserved trees are reinforced to ensure neat edges. S5: Secondary setting out: After the curing period of the concrete cushion is over, the setting out and positioning are carried out according to the actual situation of the number and location of the trees retained on site and the design drawings, and the special-shaped parts are marked with red spray paint; S6: Wall masonry: first build the special-shaped bottom wall according to the marked auxiliary line, and then position and shape it to form a brickwork layer (21). The brick wall should be built inside and outside, with staggered joints. The brick joints should be horizontal and vertical. The thickness of the mortar joints should not be less than 8 mm and not more than 12 mm. The verticality deviation between each layer of the wall should not exceed 5 mm. Apply a cement slurry base layer (22) on the outside of the brickwork layer (21) to close the bottom. S7: Apply the surface layer. First, apply a layer of plain cement slurry on the base layer, then apply the bottom mortar layer by layer to form a second mortar layer (23). The bottom mortar should be scraped flat with a ruler and rubbed with a wooden crab. After the mortar is finally set, sprinkle water for curing. Then, scrape a layer of plain cement slurry on the second mortar layer (23), apply stone slurry in two layers from bottom to top, and then flatten and compact the stone slurry layer to form a stone slurry surface layer (24). S8: Waterproofing construction, applying a polymer cement waterproof coating to the water-wet part of the wall to form a waterproof layer (25), the specific steps are as follows: (1) Use 10-15 mm wide masking paper to paste the outline at the highest point of the water on the inner side of the wall according to the designed water depth; (2) Apply the first coat of emulsion to the area below the contour line, from top to bottom and from inside to outside, without missing any spots; (3) After drying for 24 hours, apply a second coat of emulsion to form a complete waterproof layer; S9: Water-tightness test: after drying for 24 hours, conduct a 24-hour water-tightness test. The water discharge height should not be less than 30 mm. It is qualified if there is no leakage within 24 hours.

9. The method for constructing a koi pond according to claim 8, characterized in that: In S7, after applying the gravel slurry, you need to use a brush dipped in water to brush off the cement slurry on the surface, re-compact and smooth it, and then brush and press it repeatedly for 3-4 times. When the surface layer begins to solidify, if the stone particles cannot be removed by brushing with water, one person can use a brush dipped in water to brush the cement slurry, and the other person can use a water pipe to spray water 20 cm from the ground surface. After the surface is rinsed clean and the stones are removed, the surface layer can be thoroughly rinsed with clean water and sealed. Send a special person to spray water for maintenance. If cement slurry residue is found on the surface of the stone after maintenance is completed, it can be removed by brushing with oxalic acid. Note that the residual oxalic acid must be diluted and discharged into the sewer in time, and it must not flow into the greening area.

10. The method for constructing a koi pond according to claim 8, characterized in that: In S8, before applying polymer cement waterproof coating on the wall, the wall needs to be cleaned and the wall surface should be solid without sand, dust or hollows.

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