Ditch-type evaporation pond and construction method

Abstract

The present application relates to the technical field of highway drainage facilities, and discloses a ditch type evaporation pond and a construction method, which comprises a ditch, the ditch is widened on the side away from the roadbed to form a ditch type evaporation pond, grass planting bricks are laid on the inner bottom surface of the ditch type evaporation pond and the side away from the roadbed, the grass planting bricks are provided with holes to enhance the underwater infiltration capacity, a check dam is arranged in the ditch type evaporation pond at intervals along the length direction at a certain distance, and inspection steps are arranged on the water inlet side of the check dam; the original ditch is modified, the side slope of the ditch away from the roadbed is excavated, the original ditch is widened, the ditch is fully utilized, and compared with separately arranging an evaporation pond, the newly added land occupation is reduced; the original ditch position can be directly modified, the land occupation line of the ditch type evaporation pond is linear, continuous and smooth, has little influence on local land planning, has a wide application range, and can be used in the setting of the ditch road section regardless of the terrain.

Description

Technical Field

[0001] This invention relates to the field of highway drainage facilities technology, and in particular to a side ditch-type evaporation pond and its construction method. Background Technology

[0002] While fulfilling the primary function of drainage, roadbed drainage design should conserve land, minimize farmland occupation, and ensure that the selected drainage facilities are in harmony with the surrounding natural landscape, creating a harmonious environment between the highway and nature. Surveys indicate that in plains areas and low-fill, shallow-cut road sections, there are often drainage-difficult sections of varying lengths where finding outlets is challenging due to terrain limitations.

[0003] Currently, during highway construction, evaporation ponds are often installed outside ditches for sections with drainage difficulties. However, traditional evaporation ponds have the following disadvantages: 1. They occupy a large area, which is not conducive to saving land; 2. The ponds are large and deep, posing a safety hazard to surrounding residents; 3. The evaporation and infiltration areas are relatively small, which cannot meet the requirements for timely infiltration and evaporation; 4. For long road sections in plains areas with drainage difficulties, multiple evaporation ponds need to be set up in a dispersed manner, resulting in irregular and jagged land acquisition lines, which affects local land planning; 5. They have high requirements for terrain and are difficult to set up when the terrain is steep. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a side-ditch type evaporation pond and construction method, which realizes the direct transformation of the original side ditch into a side-ditch type evaporation pond. This not only reduces the amount of additional land occupied and lowers safety hazards, but also improves the sustainable water storage capacity and expands the application scope.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] In a first aspect, a side ditch-type evaporation pond includes a side ditch, the side ditch being widened on the side away from the roadbed to form a side ditch-type evaporation pond, the bottom surface of the side ditch-type evaporation pond and the side away from the roadbed being paved with grass bricks, the grass bricks having holes to enhance water infiltration capacity, and water-retaining walls being set at predetermined intervals along the length direction inside the side ditch-type evaporation pond, with inspection steps set on the water-incoming side of the water-retaining walls.

[0007] Based on the renovation of the existing ditch, the slope on the side of the ditch away from the roadbed was excavated to widen the original ditch and make full use of it. Compared with setting up a separate evaporation pond, it reduces the additional land occupation. Compared with traditional evaporation ponds, the ditch-type evaporation pond is shallower and has inspection steps on the water-facing side of the water-retaining wall, reducing the safety hazards to surrounding residents.

[0008] As a further implementation, the slope of the ditch-type evaporation pond near the roadbed is paved with solid precast blocks using cement mortar.

[0009] As a further implementation, the top surface of the water-blocking wall gradually decreases along the direction of water flow.

[0010] As a further implementation, the height of the water-retaining wall is 20-30 cm less than the depth of the ditch.

[0011] As a further implementation, the slope ratio of the two sides of the ditch-type evaporation pond is 1:1.

[0012] As a further implementation, the inspection steps are of a stepped structure and are set on the slope of the ditch-type evaporation pond away from the roadbed.

[0013] Secondly, a construction method for a side-ditch type evaporation tank, characterized by comprising the following steps:

[0014] Excavate the side of the ditch away from the roadbed according to the set dimensions to increase the width of the ditch;

[0015] Water-retaining walls are poured at intervals along the length of the ditch, and inspection steps are constructed on the water-facing side of the water-retaining walls. Then, grass is planted and grass bricks are laid on the bottom surface of the ditch and the slope away from the roadbed, ultimately forming a ditch-type evaporation pond.

[0016] As a further implementation method, during excavation, the slope of the ditch on the side closer to the roadbed remains unchanged, and only the side of the ditch away from the roadbed is excavated to widen it, thereby widening the bottom and top of the original ditch. The slope ratio of the excavated slope is consistent with the slope ratio of the ditch on the side closer to the roadbed.

[0017] As a further implementation, the top surface of the water-retaining wall decreases sequentially along the water flow direction, and the water-retaining wall is constructed using C30 cast-in-place concrete.

[0018] As a further implementation method, the solid precast blocks on the slope of the ditch near the roadbed are retained. During excavation, the solid precast blocks on the bottom surface of the ditch and the slope surface away from the roadbed are broken off, leveled, and then replanted with grass and laid with grass pavers.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. This invention is based on the modification of the existing side ditch. The slope of the side ditch away from the roadbed is excavated to widen the original side ditch and make full use of the side ditch. Compared with setting up a separate evaporation pond, it reduces the additional land occupation. Compared with traditional evaporation ponds, the side ditch evaporation pond is shallower and inspection steps are set on the water-facing side of the water-retaining wall, which reduces the safety hazards to the surrounding residents.

[0021] 2. The present invention lays grass bricks in the excavated side ditch, which increases the evaporation area and infiltration area of ​​the side ditch-type evaporation pond, which is conducive to improving the sustainable water storage capacity. At the same time, the solid precast blocks on the side of the side ditch close to the roadbed are retained, which can effectively reduce the roadbed damage caused by rainwater in the side ditch and prevent rainwater in the side ditch from seeping into the roadbed while saving costs.

[0022] 3. This invention increases the size of the side ditches in road sections with poor drainage, and sets up water-blocking walls at certain intervals in the enlarged side ditches to achieve the effect of water storage and evaporation. It can be directly modified in the original location of the side ditches. The side ditch-type evaporation pond has a regular, continuous and smooth land line shape, which has little impact on local land planning. It has a wide range of applications and can be used in road sections with side ditches, regardless of the terrain. Attached Figure Description

[0023] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0024] Figure 1 This is a longitudinal sectional view of the side-ditch type evaporation tank in an embodiment of the present invention.

[0025] Figure 2 yes Figure 1 Cross-sectional view of the AA (side ditch type evaporation pond).

[0026] Figure 3 yes Figure 1 Cross-sectional view of BB (side ditch type evaporation tank - inspection steps).

[0027] Figure 4 yes Figure 1 Cross-sectional view of CC (side ditch type evaporation pond-water barrier wall).

[0028] Figure 5 This is a detailed drawing of the grass bricks in an embodiment of the present invention.

[0029] Figure 6 This is a large-scale drawing of the solid precast block in an embodiment of the present invention.

[0030] Figure 7 It is to check the step normal projection diagram.

[0031] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0032] The components include: 1. Water-retaining wall; 2. Side ditch-type evaporation pond; 3. Maximum water storage surface; 4. Grass pavers; 5. Solid precast blocks; 6. Cement mortar; 7. Original ground surface; 8. Slope protection road; 9. Excavated side; 10. Inspection steps. Detailed Implementation

[0033] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0034] Example 1

[0035] In a typical embodiment of the present invention, reference is made to Figures 1-6 As shown, a side ditch-type evaporation pond includes a side ditch. The side ditch is widened on the side away from the roadbed to form a side ditch-type evaporation pond 2. Grass pavers 4 are laid on the bottom surface of the side ditch-type evaporation pond 2 and on the side away from the roadbed. The grass pavers 4 have holes to enhance water infiltration capacity. Water-retaining walls 1 are set at fixed intervals along the length of the side ditch-type evaporation pond. Inspection steps 10 are set on the water-incoming side of the water-retaining walls 1 for staff to inspect and maintain, and also to reduce safety hazards.

[0036] like Figure 1 As shown, since the bottom surface of the original ditch has a certain slope, which facilitates water flow from high to low, the top surface of the water-blocking wall 1 in this embodiment should gradually decrease along the water flow direction. The actual height of each water-blocking wall 1 is the same. Figure 1 In the view, the left side of the side-ditch type evaporation tank 2 is higher than the right side.

[0037] like Figure 1 As shown, the height of the water-retaining wall 1 is 20-30cm less than the depth of the ditch. The depth of the side ditch evaporation pond 2 and the design spacing of the water-retaining wall 1 should be determined comprehensively based on the capacity of the evaporation pond, the longitudinal slope of the ditch bottom, etc. The top of the water-retaining wall is the maximum water storage surface 3 of the side ditch evaporation pond 2. The slope ratio of the two sides of the side ditch evaporation pond 2 is 1:1.

[0038] like Figure 2 As shown, the slope of the ditch-type evaporation pool 2 near the roadbed is covered with solid precast blocks 5 by cement mortar 6. Since the original ditch cross section is an inverted trapezoid, solid precast blocks 5 are laid in the ditch by cement mortar 6 to facilitate drainage.

[0039] The inspection step 10 is a stepped structure, which is set on the slope of the evaporation pond 2 away from the roadbed. The inspection step 10 is located on the water-coming side of the water-retaining wall 1. The inspection step 10 facilitates manual dredging and reduces safety hazards.

[0040] This embodiment is based on the modification of the original side ditch. The slope of the side ditch away from the roadbed is excavated, that is, the slope of the side ditch away from the slope protection road 8 is excavated. By excavating the original ground 7 at the excavation side 9, the original side ditch is widened, and the side ditch is fully utilized. Compared with setting up an evaporation pond separately, the additional land occupation is reduced.

[0041] Compared with traditional evaporation ponds, the side ditch type evaporation pond 2 has a shallower ditch depth and an inspection step 10 is set on the water inlet side of the water-retaining wall 1, which reduces the safety hazards to the surrounding residents.

[0042] like Figure 2 As shown, in this embodiment, after the ditch is excavated, the solid precast blocks on the side of the ditch closest to the roadbed are retained. The excavation achieves the rightward shift of the right slope of the ditch and widens the bottom of the ditch. The solid precast blocks 5 and cement mortar 6 at the bottom of the ditch and at the excavation side 9 are broken and leveled, and grass is planted and grass pavers are laid.

[0043] like Figure 5 As shown, the grass pavers have holes, and the bottom and right slope of the ditch are covered with grass pavers, which increases the evaporation and infiltration area of ​​the ditch-type evaporation pond, thus improving the sustainable water storage capacity. At the same time, the solid precast blocks on the side of the ditch near the roadbed are retained, which can effectively reduce roadbed damage caused by rainwater in the ditch and prevent rainwater in the ditch from seeping into the roadbed while saving costs.

[0044] Enlarging the size of the side ditches in sections of road with poor drainage, and setting up water-retaining walls at certain intervals within the enlarged side ditches to achieve the effect of water storage and evaporation. In this embodiment, the existing side ditches are widened to form a side ditch-type evaporation pool. The original side ditch can be directly modified at the location of the side ditch. The side ditch-type evaporation pool 2 has a regular, continuous, and smooth land line shape, which has little impact on local land planning. It has a wide range of applications and can be used in road sections with side ditches, regardless of the terrain.

[0045] Example 2

[0046] A construction method for a side-ditch type evaporation tank includes the following steps:

[0047] The dimensions of the ditch-type evaporation pond should be determined based on the drainage calculation results and the required evaporation pond capacity. It is recommended that the bottom width of the ditch-type evaporation pond for highways be 2.0m, the depth be 2.0m, and the slope ratio of the ditch be 1:1. The ditch should be excavated on the side away from the roadbed according to the above-mentioned dimensions to increase the width of the ditch.

[0048] During excavation, the slope of the ditch on the side closest to the roadbed remains unchanged. Only the side of the ditch away from the roadbed is excavated and widened, so that the bottom and top of the original ditch are widened. The slope ratio of the excavated slope is consistent with the slope ratio of the ditch on the side closest to the roadbed.

[0049] Within the side ditch, C30 concrete retaining walls 1, spaced 1.8m apart along the length direction, are poured (e.g., Figure 4 As shown), inspection steps 10 are constructed on the water-facing side of the water-retaining wall 1 for inspection, maintenance, or emergency rescue of people who have fallen into the water. The top surface of the water-retaining wall 1 decreases sequentially along the water flow direction. The height of the water-retaining wall 1 is generally 20-30cm lower than the depth of the ditch. In this embodiment, the water-retaining wall 1 is constructed using C30 cast-in-place concrete.

[0050] Then, grass is planted on the bottom of the ditch and the slope away from the roadbed, and grass pavers 4 are laid. Solid precast blocks 5 and cement mortar 6 (6cm thick solid precast slab + 0.3cm cement mortar) on the slope of the ditch near the roadbed are retained. During excavation, the solid precast blocks 5 on the bottom of the ditch and the slope away from the roadbed are broken, leveled, and grass is replanted and 6cm thick grass pavers 4 are laid.

[0051] When it rains, rainwater is intercepted by the retaining wall 1 and trapped in the ditch, thus acting as an evaporation pond to collect rainwater from the road surface and slopes. The collected rainwater is then drained through evaporation and infiltration under the grass pavers. Solid precast blocks 5 are retained on the slope side of the ditch closest to the roadbed, effectively reducing the possibility of roadbed damage caused by rainwater in the ditch. The cement mortar 6 and solid precast blocks 5 retained on the inner side of the ditch prevent rainwater from seeping into the roadbed and also save on construction and renovation costs.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A construction method for a side-ditch type evaporation tank, characterized in that, Includes the following steps: Excavate the side of the ditch away from the roadbed according to the set dimensions to increase the width of the ditch; Water-retaining walls are poured at intervals along the length of the ditch, and inspection steps are constructed on the water-incoming side of the water-retaining walls. Then, grass is planted and grass bricks are laid on the bottom surface of the ditch and the slope on the side away from the roadbed, thus forming a ditch-type evaporation pond. Among them, the slope of the ditch on the side closer to the roadbed remains unchanged, and only the side of the ditch away from the roadbed is excavated and widened to widen the bottom and top of the original ditch. The slope ratio of the excavated slope is consistent with the slope ratio of the ditch on the side closer to the roadbed. The obtained ditch-type evaporation pond structure includes a ditch, which is widened on the side away from the roadbed to form a ditch-type evaporation pond. Grass pavers are laid on the bottom surface and the side away from the roadbed of the ditch-type evaporation pond. The grass pavers are perforated to enhance water infiltration capacity. Water-retaining walls are set at set intervals along the length of the ditch-type evaporation pond. The height of the water-retaining walls is less than the depth of the ditch. The top surface of the water-retaining walls decreases sequentially along the water flow direction. Inspection steps are set on the water-incoming side of the water-retaining walls.

2. The construction method of a side-ditch type evaporation tank according to claim 1, characterized in that, The slope of the ditch-type evaporation pond near the roadbed is paved with solid precast blocks using cement mortar.

3. The construction method of a side-ditch type evaporation tank according to claim 1, characterized in that, The slope ratio of the two sides of the ditch-type evaporation pond is 1:

1.

4. The construction method of a side-ditch type evaporation tank according to claim 1, characterized in that, The inspection steps are of a stepped structure and are located on the slope of the ditch-type evaporation pond away from the roadbed.

5. The construction method of a side-ditch type evaporation tank according to claim 1, characterized in that, The top surface of the water-retaining wall gradually decreases along the direction of water flow, and the water-retaining wall is constructed using C30 cast-in-place concrete.

6. The construction method of a side-ditch type evaporation tank according to claim 5, characterized in that, Solid precast blocks on the slope of the ditch near the roadbed are retained. During excavation, solid precast blocks on the bottom of the ditch and the slope away from the roadbed are removed, leveled, replanted with grass, and paved with grass bricks.

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