Crab embankment passing channel and operation and maintenance method

Abstract

The invention provides a crab embankment passing channel and an operation and maintenance method. The crab embankment passing channel comprises a box culvert section, an inlet section and an outlet section. The box culvert section penetrates through the dike body. The inlet section is connected with one end of the box culvert section and communicated with the outer beach. The outlet section is connected with the other end of the box culvert section and communicated with the inner beach, and the dike body is located between the outer beach and the inner beach. The crab migration channel solves the problem that water in an existing crab migration channel is easy to evaporate and dissipate.

Description

Technical Field

[0001] The present application relates to the technical field of embankment ecological restoration, and in particular to a embankment passage for crabs and an operation and maintenance method. Background Art

[0002] Levees are water-retaining structures built along rivers, lakes, or low-lying areas. They are primarily used for flood control and to protect residents, farmland, and infrastructure within the levees. Levees can be categorized by their location as river levees, lake levees, seawalls, canal levees, and enclosure levees.

[0003] Crabs need to cross dikes to transition habitats for reproduction, foraging, and other life activities. Common sloped dike structures, with their hard surface protection and wave walls, block the natural pathways for crabs to migrate upstream, limiting their range and severely impacting their populations and ecological balance.

[0004] To facilitate crab migration, migratory channels can be set up. Existing migratory channels consist of obstacle-crossing channels and ecological blankets. The clinging medium is laid and fixed continuously along the road surface and inner slope of the project's landform. Baffles are installed on both sides of the obstacle-crossing channel to form a groove structure. The ecological blanket is set in the obstacle-crossing channel. Because the obstacle-crossing channel has an open groove structure, the moisture in the ecological blanket is easily evaporated and lost under sunlight. Therefore, the existing crab migratory channels have the problem of easy evaporation and loss of moisture. Summary of the Invention

[0005] The purpose of the present application is to provide a crab crossing embankment channel to solve the problem of easy evaporation and loss of water in the existing crab migration channel.

[0006] This application provides a crab crossing passageway, comprising a box culvert section, an inlet section, and an outlet section. The box culvert section is disposed through the dike. The inlet section is connected to one end of the box culvert section, communicating with the outer bank. The outlet section is connected to the other end of the box culvert section, communicating with the inner bank. The dike is located between the outer and inner banks.

[0007] Optionally, the box culvert section is arranged next to a dike-penetrating building, and the dike-penetrating building is arranged to pass through the dike body.

[0008] Optionally, the box culvert section includes a first structural layer and a soft paving layer, the first structural layer is tubular and passes through the embankment, and the soft paving layer is arranged on the first structural layer.

[0009] Optionally, the box culvert section further includes a water storage device, which is used to supply water to the space enclosed by the first structural layer.

[0010] Optionally, the crab crossing channel further includes a rainwater collection pipe, which is connected to the water storage device.

[0011] Optionally, the crab crossing channel further includes a lighting channel, which is connected to the first structural layer and is used to provide light to the space enclosed by the first structural layer.

[0012] Optionally, the soft paving layer includes a debris layer and a beach soil layer, the beach soil layer is laid on the first structural layer, and the debris layer is laid on the beach soil layer.

[0013] Optionally, the crab crossing channel further includes a gate, which is movably connected to the embankment body and is used to open or close the first structural layer.

[0014] Optionally, the inlet section includes a second structural layer and a soft paving layer, the second structural layer is groove-shaped, and the soft paving layer is arranged on the second structural layer;

[0015] and / or,

[0016] The outlet section includes a third structural layer and a soft paving layer, the third structural layer is groove-shaped, and the soft paving layer is arranged on the third structural layer.

[0017] The present application also provides an operation and maintenance method for a crab crossing dike channel, which is applied to the crab crossing dike channel and includes the following steps:

[0018] Regularly inspect and clear debris from crab crossing channels;

[0019] Keep the crab crossing channel open during the non-flood season; and

[0020] When encountering flood prevention tasks during the flood season, the crab crossing channel will be closed, and the crab crossing channel will be opened after the flood prevention tasks are completed.

[0021] The beneficial effects of this application lie in the following: by providing a box culvert section, an inlet section, and an outlet section. The box culvert section is installed through the dike. The inlet section is connected to one end of the box culvert section, which communicates with the outer beach. The outlet section is connected to the other end of the box culvert section, which communicates with the inner beach. The dike is located between the outer and inner beaches. Because the box culvert section is installed through the dike, sunlight is less likely to reach the box culvert section, preventing moisture from evaporating and dissipating, thereby reducing overall water loss in the crab crossing channel.

[0022] The above description is only an overview of the technical solution of this application. In order to more clearly understand the technical means of this application and implement it in accordance with the contents of the specification, the following is a detailed description of this application with the preferred embodiments of the application and in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a top view of the crab crossing channel in the first embodiment of the present application;

[0024] Figure 2 is a longitudinal sectional view of the crab crossing channel in the first embodiment of the present application;

[0025] Figure 3 is a cross-sectional view of the inlet section in the first embodiment of the present application;

[0026] Figure 4 is a cross-sectional view of a box culvert section in the first embodiment of the present application;

[0027] Figure 5 This is a cross-sectional view of the outlet section in the first embodiment of the present application.

[0028] Wherein, the reference numerals:

[0029] 100 box culvert section

[0030] 1000 First structural layer

[0031] 1001 Water Storage Device

[0032] 101 Import Section

[0033] 1010 Second structural layer

[0034] 102 Exit Section

[0035] 1020 Third structural layer

[0036] 103 Embankment

[0037] 104 Embankment Road

[0038] 105 Buildings crossing the dike

[0039] 106 soft layer

[0040] 1060 Debris Layer

[0041] 1061 Tidal Flat Soil Layer

[0042] 107 Rainwater collection pipe

[0043] 108 Lighting Channel

[0044] 109 Gate DETAILED DESCRIPTION

[0045] The following describes the implementation of the present application through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0046] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of this application will be clearly and completely described below in combination with the drawings in the embodiments of this application. Obviously, the described embodiments are only embodiments of a part of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0047] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0048] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0049] First embodiment

[0050] like Figure 1 As shown, in this embodiment, a crab crossing channel is provided, comprising a box culvert section 100, an inlet section 101, and an outlet section 102. The box culvert section 100 is disposed through the dike body 103. The inlet section 101 is connected to one end of the box culvert section 100, and the inlet section 101 is connected to the outer beach. The outlet section 102 is connected to the other end of the box culvert section 100, and the outlet section 102 is connected to the inner beach. The dike body 103 is located between the outer and inner beaches. Because the box culvert section 100 is disposed through the dike body 103, sunlight is difficult to penetrate the box culvert section 100, making it difficult for moisture in the box culvert section 100 to evaporate and dissipate, thereby reducing the overall moisture loss in the crab crossing channel.

[0051] Crabs, belonging to the order Decapoda, class Molluscs, are a highly representative group of arthropods. Encased in a hard shell and possessing distinctive chelicerae and legs, they primarily inhabit aquatic environments such as oceans, rivers, and wetlands. Based on their habitat and morphology, crabs can be divided into marine crabs, river crabs, stream crabs, and land crabs. Crabs typically migrate from water to land for breeding and foraging, often covering distances of several kilometers if unobstructed.

[0052] Please also refer to Figure 1 and Figure 2 The box culvert section 100 is a rectangular tubular structure constructed of reinforced concrete. To meet flood control and closure requirements, the floor of the box culvert section 100 must be elevated as high as possible. The box culvert section 100 is located below the embankment road 104, which is used for flood control vehicles.

[0053] Please also refer to Figure 1 and Figure 2 The embankment 103 is preferably an earth embankment, stone embankment, earth-rock mixed embankment, concrete embankment, or ecological embankment. The inlet section 101 is preferably a U-shaped trough structure. It can be constructed of reinforced concrete or masonry. The inlet section 101 is tilted, with the top of the inlet section 101 connected to the box culvert section 100. The outer ends (e.g., the right end) of the inlet section 101 and the box culvert section 100 are connected with concrete.

[0054] Please also refer to Figure 1 and Figure 2 , the outer beach is preferably the outer beach. The outlet section 102 is preferably a U-shaped trough structure. The outlet section 102 can adopt a reinforced concrete structure or a masonry structure. The outlet section 102 is set at an angle, and the top of the outlet section 102 is connected to the box culvert section 100. The outlet section 102 and the inner end (for example, the left end) of the box culvert section 100 are connected with concrete. The inner beach is preferably the inner Suitang River beach. The box culvert section 100 is located between the inlet section 101 and the outlet section 102. The direction of the inlet section 101, the box culvert section 100 and the outlet section 102 after connection is a trapezoidal shape with a high middle and low sides.

[0055] like Figure 1 As shown, the box culvert section 100 can optionally be positioned adjacent to a dike-penetrating structure 105, which is positioned within the dike 103. This arrangement allows the box culvert section 100 to be opened or closed simultaneously with the dike-penetrating structure 105, thus reducing the operational burden on the box culvert section 100. The box culvert section 100 is preferably positioned close to the dike-penetrating structure 105, with a split structure positioned between them.

[0056] like Figure 1As shown, the embankment 103 blocks the flow of water on both sides of the embankment. Typically, there are functional lands such as development plots or farmland on the inner side of the embankment that require drainage or water diversion. Therefore, functional structures 105 such as culverts, sluice gates, sluice gates, pumping stations, or pipe culverts are installed at regular intervals along the embankment 103 as needed.

[0057] Please also refer to Figure 2 and Figure 4 Optionally, the box culvert section 100 includes a first structural layer 1000 and a soft paving layer 106. The first structural layer 1000 is tubular and extends through the embankment 103, while the soft paving layer 106 is disposed within the first structural layer 1000. The first structural layer 1000 separates the box culvert section 100 from the embankment 103, preventing damage to the embankment 103 structure caused by the burrowing behavior of crabs. The soft paving layer 106 also effectively connects the mudflats on both sides and guides crab migration.

[0058] Please also refer to Figure 2 and Figure 4 The first structural layer 1000 is preferably in the shape of a rectangular parallelepiped tube and is constructed of reinforced concrete. A soft pavement 106 is laid on the inner bottom surface of the first structural layer 1000. The soft pavement 106 is continuously laid on the bottom surfaces of the inlet section 101, the box culvert section 100, and the outlet section 102.

[0059] Please also refer to Figure 2 and Figure 4 Optionally, the box culvert section 100 further includes a water storage device 1001, which is used to supply water to the space enclosed by the first structural layer 1000. The water storage device 1001 can maintain the relative humidity in the box culvert section 100, creating a living environment suitable for crabs.

[0060] Please also refer to Figure 2 and Figure 4 The water storage device 1001 is preferably shaped like a rectangular box. There are multiple water storage devices 1001, each spaced apart from the other. The water storage devices 1001 are preferably constructed of reinforced concrete. The water storage devices 1001 are preferably located atop the first structural layer 1000. The bottom of the water storage device 1001 is provided with a small hole, through which water in the water storage device 1001 continuously drips into the space enclosed by the first structural layer 1000, thereby maintaining the air humidity within the space enclosed by the first structural layer 1000 and the humidity of the soft pavement 106.

[0061] like Figure 4 As shown, the crab crossing channel optionally further includes a rainwater collection pipe 107, which is connected to the water storage device 1001. The rainwater collection pipe 107 can collect rainwater for the water storage device 1001, eliminating the need to use a pumping device to pump water into the first structural layer 1000, which is energy-saving and environmentally friendly.

[0062] like Figure 4 As shown, rainwater collection pipe 107 is preferably a plastic pipe or a steel pipe. The top end of rainwater collection pipe 107 extends beyond embankment road 104, and the bottom end of rainwater collection pipe 107 extends beyond the top of water storage device 1001. This allows rainwater to flow into water storage device 1001 during rain. The number of rainwater collection pipes 107 is the same as the number of water storage devices 1001, and they are provided in a one-to-one correspondence.

[0063] like Figure 4 As shown, the crab crossing channel optionally further includes a light channel 108, which is connected to the first structural layer 1000 and is used to provide light to the space enclosed by the first structural layer 1000. The light channel 108 can provide local light to the box culvert section 100, creating a living environment suitable for crabs.

[0064] like Figure 4 As shown, the light tunnel 108 is preferably a plastic or steel pipe. The top of the light tunnel 108 passes through the dike road 104, and the bottom of the light tunnel 108 passes through the top of the first structural layer 1000. The light tunnel 108 is spaced apart from the water storage device 1001 and the rainwater collection pipe 107. There are multiple light tunnels 108. The light tunnels 108 are preferably tilted to prevent direct sunlight from entering the first structural layer 1000.

[0065] like Figure 4 As shown, the soft paving layer 106 optionally includes a debris layer 1060 and a mudflat soil layer 1061. The mudflat soil layer 1061 is laid on the first structural layer 1000, and the debris layer 1060 is laid on the mudflat soil layer 1061. This arrangement not only creates a living environment suitable for crabs, but also allows for local mudflat soil to be obtained, reducing the production cost of the soft paving layer 106.

[0066] like Figure 4 As shown, the debris layer 1060 is preferably a humus debris layer or a carrion debris layer, and the debris layer 1060 is laid on the beach soil layer 1061. The beach soil layer 1061 is laid on the inner bottom surface of the first structural layer 1000. The thickness of the beach soil layer 1061 is preferably 0.3m.

[0067] Please also refer to Figure 1 and Figure 2Optionally, the crab crossing channel also includes a gate 109, which is movably connected to the embankment body 103, and the gate 109 is used to open or close the first structural layer 1000. The provision of the gate 109 can meet the flood control and closure requirements of the box culvert section 100. A gap is provided in the embankment body 103, and the gate 109 can be passed through the gap to achieve a movable connection with the embankment body 103. The gate 109 is preferably provided on the outside of the first structural layer 1000 (for example, the right end). The gate 109 is in the shape of a rectangular plate, and is preferably a preservative wood or prefabricated reinforced concrete structure that can be lifted by one person. The cross-sectional area of ​​the gate 109 is larger than the cross-sectional area of ​​the box culvert section 100 to block the box culvert section 100.

[0068] Please also refer to Figure 1 and Figure 3 Optionally, the inlet section 101 includes a second structural layer 1010 and a soft paving layer 106. The second structural layer 1010 is grooved, and the soft paving layer 106 is disposed within the second structural layer 1010. The second structural layer 1010 separates the inlet section 101 from the embankment 103, thereby preventing damage to the embankment 103 structure caused by the burrowing ability of crabs. The soft paving layer 106 also effectively connects the mudflats on both sides and guides crab migration.

[0069] Please also refer to Figure 1 and Figure 3 The second structural layer 1010 is constructed of brick or reinforced concrete, with an open top. Flanking the second structural layer 1010 are walls to guide crabs in and out. To more effectively guide crabs in and out, the walls are projected horizontally into streamlined curves, with a wide outer opening and a narrow inner opening, allowing crabs to enter and exit the box culvert section 100 more naturally. A soft paving layer 106 is laid on the inner bottom surface of the second structural layer 1010.

[0070] Please also refer to Figure 1 and Figure 5 Optionally, the outlet section 102 includes a third structural layer 1020 and a soft paving layer 106. The third structural layer 1020 is grooved, and the soft paving layer 106 is disposed within the third structural layer 1020. The third structural layer 1020 separates the outlet section 102 from the embankment 103, preventing damage to the embankment 103 structure caused by burrowing crabs. The soft paving layer 106 also effectively connects the mudflats on both sides and guides crab migration.

[0071] Please also refer to Figure 1 and Figure 5Optionally, the third structural layer 1020 is constructed of brick or reinforced concrete, with an open top. Flanking walls on either side of the third structural layer 1020 guide crabs in and out. To more effectively guide crabs in and out, the horizontal projection of the walls of the third structural layer 1020 is a streamlined curve, with a wide outer opening and a narrow inner opening, allowing crabs to more naturally enter and exit the box culvert section 100. A soft paving layer 106 is laid on the inner bottom surface of the third structural layer 1020.

[0072] Second embodiment

[0073] In this embodiment, a method for operating and maintaining a crab dike passage is provided, which is applied to the crab dike passage in the first embodiment and includes the following steps:

[0074] Regularly inspect and clear debris from crab crossing channels;

[0075] Keep the crab crossing channel open during the non-flood season; and

[0076] When encountering flood prevention tasks during the flood season, the crab crossing channel will be closed, and the crab crossing channel will be opened after the flood prevention tasks are completed.

[0077] Debris is preferably tree branches or rocks. Regular inspections are preferably conducted before and after the flood season. Lifting gate 109 and placing it beside the crest road 104 opens the crab passage. Lowering gate 109 until its bottom surface contacts the inner bottom surface of the first structural layer 1000 closes the passage. Flood prevention measures encompass a full range of measures, including monitoring and early warning, engineering protection, emergency response, and post-disaster recovery.

[0078] Generally speaking, crabs migrate in all seasons except for the winter (December of the current year to February of the following year) when they hibernate. The migration can be divided into spring (March-May) when the crabs migrate before reproduction; summer (June-August) when the crabs spread out and feed; and autumn (September-November) when the crabs prepare for hibernation and migrate in groups. The migration direction is mostly from the outer mudflats to the inner mudflats along the ponds and rivers.

[0079] The operation and maintenance requirements for dike-crossing structures 105 are typically divided into the flood season (May-October) and the non-flood season (November of the current year to April of the following year). During the flood season, dike-crossing structures 105 should be closed, while during the non-flood season, they can remain open. Therefore, during the flood season (May-October), closing the gates 109 of the crab-crossing passage, as required by flood control, conflicts with the crabs' migration needs. The operation and maintenance method for the crab-crossing passage in this embodiment can avoid this conflict between the crabs' migration needs and flood control requirements.

[0080] The above is a detailed introduction to the crab crossing channel and operation and maintenance method provided in the embodiments of this application. For those skilled in the art, according to the ideas of the embodiments of this application, there will be some changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application. All equivalent modifications or changes made based on the spirit and technical ideas of this application should still be covered by the claims of this application.

Claims

1. A crab crossing channel, characterized in that: include: The box culvert section is installed through the embankment; an inlet section connected to one end of the box culvert section, the inlet section being connected to the outer beach; as well as The outlet section is connected to the other end of the box culvert section, and the outlet section is connected to the inner beach. The embankment is located between the outer beach and the inner beach.

2. The crab crossing channel according to claim 1, characterized in that: The box culvert section is arranged beside the dike-penetrating building, and the dike-penetrating building is arranged through the dike body.

3. The crab crossing channel according to claim 1, characterized in that: The box culvert section includes a first structural layer and a soft paving layer. The first structural layer is tubular and passes through the embankment body. The soft paving layer is arranged on the first structural layer.

4. The crab crossing channel according to claim 3, characterized in that: The box culvert section further includes a water storage device, which is used to supply water to the space enclosed by the first structural layer.

5. The crab crossing channel according to claim 4, characterized in that: It also includes a rainwater collection pipe, which is connected to the water storage device.

6. The crab crossing channel according to claim 3, characterized in that: It also includes a lighting channel, which is connected to the first structural layer and is used to provide light to the space enclosed by the first structural layer.

7. The crab crossing channel according to claim 3, characterized in that: The soft paving layer includes a debris layer and a beach soil layer. The beach soil layer is laid on the first structural layer, and the debris layer is laid on the beach soil layer.

8. The crab crossing channel according to claim 3, characterized in that: It also includes a gate, which is movably connected to the embankment body and is used to open or close the first structural layer.

9. The crab crossing channel according to claim 1, characterized in that: The inlet section includes a second structural layer and a soft paving layer, the second structural layer is groove-shaped, and the soft paving layer is arranged on the second structural layer; and / or, The outlet section includes a third structural layer and a soft paving layer, the third structural layer is groove-shaped, and the soft paving layer is arranged on the third structural layer.

10. A method for operating and maintaining a crab crossing channel, characterized in that: The method is applied to the crab crossing channel according to any one of claims 1 to 9, comprising the following steps: Regularly inspect and clear debris from crab crossing channels; Keep the crab crossing channel open during the non-flood season; and When encountering flood prevention tasks during the flood season, the crab crossing channel will be closed, and the crab crossing channel will be opened after the flood prevention tasks are completed.

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