Sewage interception type ecological channel multi-stage bank protection system

Abstract

The invention provides a sewage interception type ecological channel multi-stage bank protection system. The sewage interception type ecological channel multi-stage bank protection system comprises a reinforced concrete layer, a rock layer, an original soil layer, a first-stage filtering system, a second filtering system and a third-stage filtering system. Reinforced concrete layers and rock layers are sequentially arranged on the banks on the two sides of the river channel from bottom to top, and original soil layers are arranged on the rock layers; a first-stage filtering system, a second-stage filtering system and a third-stage filtering system are sequentially arranged on the original soil layer; the tops of the first-stage filtering system, the second-stage filtering system and the third-stage filtering system are lower than the height of the original soil layer; a water filtering main pipe is arranged between the rock layer and the original soil layer, water filtering branch pipes are arranged on the sides, close to the downhill, of the first-stage filtering system, the second-stage filtering system and the third-stage filtering system, the water filtering branch pipes are communicated to a river channel through the water filtering main pipe, and quick-release filtering nets are arranged at the tops of the water filtering branch pipes. The purification function of the ecological revetment is enhanced, exogenous pollution is prevented from entering a water body, through the strip-shaped design, the diversity of vegetation on the revetment is enriched, and the landscape effect is enhanced.

Description

Technical Field

[0001] The invention belongs to the field of waterway ecology, and in particular relates to a pollution interception type ecological waterway multi-level bank protection system. Background Art

[0002] In the construction of waterway revetments, traditional concrete revetments have been widely used. This type of revetment has serious ecological problems. Concrete revetments lack water and soil materials and energy exchange, making it difficult for water and nutrients in the soil to interact naturally with the water body, destroying the balance of the ecosystem. At the same time, it also cuts off the passage for amphibians and reptiles to enter and exit the water, seriously affecting the survival and reproduction of organisms. This single structural form not only destroys the natural ecological environment, but also makes the ecosystem around the waterway fragile.

[0003] As people's awareness of ecological environmental protection continues to increase, the limitations of traditional concrete revetments have become increasingly prominent, and the concept of waterway ecological revetments has been valued. Ecological revetments are a slope protection technology that integrates the basic knowledge of engineering mechanics, soil science, ecology, and botany to support slopes or slopes, forming a comprehensive slope protection system composed of plants or engineering and plants. Ecological revetments can promote soil and water conservation, increase biodiversity, improve the ecological environment, and provide good support for the ecosystem around the waterway.

[0004] However, existing ecological revetments mostly emphasize the ecology and landscape of the revetment itself, and focus on plant planting and landscape creation. In practical applications, this type of revetment is insufficient in intercepting pollutants from migrating into the river. Compared with traditional concrete revetments, ecological revetments have a worse ability to intercept pollutants. In the urban section of the river, due to frequent human activities and large amounts of pollutant emissions, this defect of ecological revetments can easily lead to problems such as eutrophication of the urban section of the river and its downstream after pollutants enter the river. This not only affects the ecological environment of the river, but also has an adverse impact on the quality of life of surrounding residents.

[0005] In view of the poor ecological performance of traditional concrete revetments and the shortcomings of existing ecological revetments in intercepting pollutants, it is particularly necessary to develop multi-level revetments for pollution-intercepting ecological waterways. This revetment technology should fully utilize the advantages of ecological revetments on the basis of ensuring the stability of the waterway slope, improve the ability to intercept pollutants, and achieve the dual goals of ecological protection and pollution prevention. At the same time, multi-level waterway ecological revetments should also focus on landscape design, improve the overall aesthetics of the waterway, and provide people with a comfortable water transportation and ecological environment. Summary of the invention

[0006] In view of this, the present invention aims to propose a pollution interception ecological waterway multi-level revetment system to strengthen the water collection and purification functions of the ecological revetment, prevent external pollution from entering the water body, and enrich the vegetation diversity on the revetment through a strip design to enhance its landscape effect.

[0007] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0008] A pollution interception ecological waterway multi-stage revetment system, comprising a reinforced concrete layer, a rock layer, an original soil layer, a primary filtration system, a secondary filtration system and a tertiary filtration system;

[0009] The banks on both sides of the river are successively set with reinforced concrete layer and rock layer from bottom to top, and the original soil layer is above the rock layer;

[0010] On the original soil layer, there are a primary filtration system, a secondary filtration system and a tertiary filtration system in sequence; the tops of the primary filtration system, the secondary filtration system and the tertiary filtration system are lower than the height of the original soil layer at that location;

[0011] A water filtration main pipe is arranged between the rock layer and the original soil layer. The primary filtration system, the secondary filtration system and the tertiary filtration system are all provided with water filtration branch pipes near the downhill side. The water filtration branch pipes are connected to the river channel through the water filtration main pipe. A quick-release filter screen is arranged on the top of the water filtration branch pipe.

[0012] Furthermore, the slopes of the reinforced concrete layer, the rock layer and the water filtration main pipe are all 3°-5°.

[0013] Furthermore, the primary filtration system, the secondary filtration system and the tertiary filtration system have the same structure, including a reinforced gabion mesh, a pebble ceramsite layer and a planting soil garnet layer.

[0014] A deep well is formed in the original soil layer, in which reinforced gabions are arranged. In the reinforced gabions, a pebble expanded clay layer and a planting soil garnet layer are arranged from bottom to top.

[0015] Further, the top of the planted soil garnet layer is concave and planted with wet plants;

[0016] The thickness ratio of the planting soil garnet layer to the pebble ceramsite layer is 1:1;

[0017] The particle size of the pebbles and expanded clay in the pebble expanded clay layer is 5-10 mm.

[0018] Furthermore, the upper part of the garnet is planting soil, the thickness of the planting soil is 15-180cm, and the particle size of the garnet is 2-4cm.

[0019] Furthermore, the water filter branch pipe is provided with a plurality of water permeable holes, and the diameter of the water permeable holes is 0.5-1 cm.

[0020] Further, the quick-release filter includes an upper mounting frame, a lower mounting frame, a quick-release part and a filter, and the filter is mounted on the upper mounting frame.

[0021] The installation lower frame is installed on the top of the water filter branch pipe, and the installation upper frame and the installation lower frame are connected by quick-release parts.

[0022] Furthermore, the quick-release component is a bead buckle.

[0023] Compared with the prior art, the pollution interception ecological waterway multi-level revetment system described in the present invention has the following advantages:

[0024] (1) The present invention provides a pollution interception ecological waterway multi-level bank protection system. By setting up a primary, secondary and tertiary filtration system, it can quickly absorb sewage flowing into the river through the bank protection. It has many large pores and is not easy to be blocked. It can efficiently absorb pollutants in the slope water flow, intercept pollutants from migrating into the river, improve the purification effect of the ecological bank protection, and avoid and reduce problems such as eutrophication of river water.

[0025] (2) The present invention provides a pollution interception ecological waterway multi-level bank protection system, in which different types of plants are planted on the top of the primary, secondary and tertiary filtration systems. This system can not only eliminate pollutants in sewage through root absorption and microbial degradation, but also enrich the ecological bank protection landscape effect and form a unique plant community belt and landscape. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 A schematic diagram of a pollution interception ecological waterway multi-level bank protection system according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the installation frame according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the installation lower frame described in an embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 1. Reinforced concrete layer; 2. Rock layer; 3. Original soil layer; 4. Primary filtration system; 41. Pebble expanded clay layer; 42. Planting soil garnet layer; 5. Secondary filtration system; 6. Tertiary filtration system; 7. Water filtration branch pipe; 8. Water filtration main pipe; 9. Quick-release filter; 91. Install the upper frame; 92. Install the lower frame; 93. Quick-release parts; 94. Filter. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0036] A pollution interception ecological channel multi-level bank protection system, such as Figure 1 As shown, it includes a reinforced concrete layer 1, a rock layer 2, an original soil layer 3, a primary filtration system 4, a secondary filtration system and a tertiary filtration system 6;

[0037] On the banks on both sides of the river, reinforced concrete layer 1 and rock layer 2 are arranged from bottom to top, and above the rock layer 2 is the original soil layer 3;

[0038] On the original soil layer 3, there are a primary filtration system 4, a secondary filtration system 5 and a tertiary filtration system 6 in sequence; the tops of the primary filtration system 4, the secondary filtration system 5 and the tertiary filtration system 6 are lower than the height of the original soil layer 3 at that location;

[0039] A water filtration main pipe 8 is provided between the rock layer 2 and the original soil layer 3, and a water filtration branch pipe 7 is provided near the downhill side of the primary filtration system 4, the secondary filtration system 5 and the tertiary filtration system 6. The water filtration branch pipe 7 is connected to the river channel through the water filtration main pipe 8, and a quick-release filter screen 9 is provided on the top of the water filtration branch pipe 7;

[0040] When the precipitation is heavy, the rainwater on the bank will first enter the water filtration branch pipe 7 when flowing downward. By setting up the primary filtration system 4, the secondary filtration system 5 and the tertiary filtration system 6, the scouring of rainwater is gradually reduced, further playing the role of preventing soil erosion and protecting the ecological environment.

[0041] Preferably, the slopes of the reinforced concrete layer 1, the rock layer 2 and the water filter main 8 are all 3°-5°.

[0042] Preferably, the primary filtration system 4, the secondary filtration system 5 and the tertiary filtration system 6 have the same structure, including a reinforced gabion mesh, a pebble ceramsite layer 41 and a planting soil garnet layer 42.

[0043] The original soil layer 3 forms a deep well, in which a reinforced gabion mesh is arranged, and in which a pebble ceramsite layer 41 and a planting soil garnet layer 42 are arranged in sequence from bottom to top.

[0044] Preferably, the top of the planting soil garnet layer 42 is concave, and wet plants are planted. Different vegetation is planted according to different situations, including but not limited to windmill grass, pennywort, and spatholobi, and local native wet plants are planted first;

[0045] The thickness ratio of the planting soil garnet layer 42 to the pebble ceramsite layer 41 is 1:1;

[0046] The particle size of the pebbles and expanded clay in the pebble expanded clay layer 41 is 5-10 mm; the upper part of the garnet is planting soil, the thickness of the planting soil is 15-180 cm, and the particle size of the garnet is 2-4 cm, which can quickly absorb rainwater, has many large pores, is not easy to be blocked, and can efficiently absorb pollutants in rainwater, thereby improving the purification effect of the ecological revetment.

[0047] Preferably, the planting soil can be artificially mixed with natural planting soil, domestic peat soil, cooked chicken manure, etc. in a certain proportion to form artificial planting soil. The proportion and amount of each matrix are as shown in the following table:

[0048] Table 1 Volume ratio of each matrix in artificial planting soil

[0049]

[0050] Preferably, the water filter branch pipe 7 is provided with a plurality of water permeable holes, and the diameter of the water permeable holes is 0.5-1 cm.

[0051] Preferably, Figure 2 Figure 3 As shown, the quick-release filter 9 includes an upper mounting frame 91, a lower mounting frame 92, a quick-release part 93 and a filter 94. The filter 94 is mounted on the upper mounting frame 91.

[0052] The lower installation frame 92 is installed to the top of the water filter branch pipe 7, and the upper installation frame 91 and the lower installation frame 92 are connected by a quick release part 93; the quick release part 93 is a bead buckle, which is a commercially available part and can achieve the purpose of stability and quick release, quickly remove the debris of concern, prevent blockage, reduce the workload of staff, and improve work efficiency.

[0053] When this ecological waterway multi-level bank protection system is applied in actual projects, it should be combined with the overall design of canal projects and river bank protection projects, and integrated into the infrastructure such as embankment roads, horse paths, upper and lower steps, membrane bag concrete bank protection foundations, etc. in actual projects to achieve overall coordination.

[0054] Preferably, the selection of vegetation and the space for landscaping are combined with the cross-sectional forms of different sections of the canal project. The dike garden road of the canal project is combined to create a waterfront viewing trail, the natural slopes of the landscape are combined with nodes to create a landscape step leisure platform, and the dike top road is combined with the waterfront roads along the line to create a leisure greenway.

[0055] The preferred principles for vegetation selection and greening design of the multi-level revetment system of the ecological waterway are as follows: (1) Respect the current status of the site: the original vegetation greening maintenance along the river is good, and the greening design respects the current status, retains the plant species with good status, and redesigns the greening for local areas; (2) Restore vegetation greening and create a beautiful landscape: the existing slope has exposed loess, and the greening design restores the greening of the slope to create a beautiful river slope greening landscape. (3) Open the plant sight corridor: open the plant sight corridor, reasonably sort out the plants that block the view, try to retain the setting of the existing large-scale tree site and the opening of the sight space, try to avoid large trees, and if they cannot be avoided, transplant them to other sites within the red line nearby, sort out the plants along the line, and introduce the river view into the urban landscape. (4) Create characteristic tree species: the greening base along the river is good, but lacks color. The greening design adds flowering tree species and palm trees, creates red, yellow, pink and coastal style landscape segments, and highlights the greening characteristics of the coast.

[0056] Preferably, three greening color vegetation planting plans are provided, namely, red, yellow, and pink, to create a canal humanistic landscape culture with corresponding colors. Yellow flower series "Yellow Catkins": Yellow flowers are full of hope and vitality, making people feel happy and peaceful. They also represent the rising sun, the color of brilliance and hope, and the yearning for a better life. Pink flower series "Pink Clusters": The pink flower series is warm and romantic, implying facing the sea and spring flowers. Red flower series "Red Makeup Flames": It implies that the overall development of the canal will be prosperous in the future after its completion.

[0057] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pollution interception ecological waterway multi-level bank protection system, characterized by: It includes reinforced concrete layer, rock layer, original soil layer, primary filtration system, secondary filtration system and tertiary filtration system; The banks on both sides of the river are successively set with reinforced concrete layer and rock layer from bottom to top, and the original soil layer is above the rock layer; On the original soil layer, there are a primary filtration system, a secondary filtration system and a tertiary filtration system in sequence; the tops of the primary filtration system, the secondary filtration system and the tertiary filtration system are lower than the height of the original soil layer at that location; A water filtration main pipe is arranged between the rock layer and the original soil layer. The primary filtration system, the secondary filtration system and the tertiary filtration system are all provided with water filtration branch pipes near the downhill side. The water filtration branch pipes are connected to the river channel through the water filtration main pipe. A quick-release filter screen is arranged on the top of the water filtration branch pipe.

2. The pollution interception ecological waterway multi-level bank protection system according to claim 1 is characterized by: The slopes of the reinforced concrete layer, the rock layer and the water filtration main pipe are all 3°-5°.

3. The pollution interception ecological waterway multi-level revetment system according to claim 1 is characterized by: The primary filtration system, the secondary filtration system and the tertiary filtration system have the same structure, including reinforced gabion mesh, pebble ceramsite layer and planting soil garnet layer. A deep well is formed in the original soil layer, in which reinforced gabions are arranged. In the reinforced gabions, a pebble expanded clay layer and a planting soil garnet layer are arranged from bottom to top.

4. The pollution interception ecological waterway multi-level revetment system according to claim 3 is characterized by: The top of the planted soil garnet layer is concave and planted with wet plants; The thickness ratio of the planting soil garnet layer to the pebble ceramsite layer is 1:1; The particle size of the pebbles and expanded clay in the pebble expanded clay layer is 5-10 mm.

5. The pollution interception ecological waterway multi-level revetment system according to claim 3 is characterized by: The upper part of the garnet is planting soil, the thickness of the planting soil is 15-180cm, and the particle size of the garnet is 2-4cm.

6. The pollution interception ecological waterway multi-level bank protection system according to claim 1 is characterized by: The water filter branch pipe is provided with a plurality of water permeable holes, and the aperture of the water permeable holes is 0.5-1 cm.

7. The pollution interception ecological waterway multi-level bank protection system according to claim 1 is characterized by: The quick-release filter includes an upper mounting frame, a lower mounting frame, a quick-release part, and a filter. The filter is mounted on the upper mounting frame. The installation lower frame is installed on the top of the water filter branch pipe, and the installation upper frame and the installation lower frame are connected by quick-release parts.

8. The pollution interception ecological waterway multi-level revetment system according to claim 7 is characterized by: The quick release part is a bead buckle.

Images