Pine pile retaining wall structure for river bank protection

Abstract

The pine pile retaining wall structure for the river bank protection relates to the technical field of river bank protection piles and comprises a river inclined bank, a fixing groove is formed in the side, close to a river, of the river inclined bank, and a pouring bearing layer is arranged in the fixing groove. The pouring bearing layer is provided with a plurality of pine piles arranged in the vertical direction in the length direction of the river channel inclined bank, the pouring bearing layer is provided with a plurality of fixing ribs corresponding to the pine piles in the vertical direction, and the fixing ribs are arranged in the pine piles in a penetrating mode. Due to the arrangement of the fixing ribs, the connection relation between the pine piles and a riverbed soil body is strengthened, and when water flow generates lateral thrust, the pine piles can transmit force to a pouring bearing stratum through the fixing ribs; the fixing groove is tightly filled with the pouring layer bearing layer, the pouring layer bearing layer and a riverbed soil body form a continuous and firm stress whole, when lateral thrust is generated through water flow impact, the pouring bearing layer can disperse force to a riverbed, the bearing stability of the foundation is guaranteed, and the collapse risk is reduced.

Description

Technical Field

[0001] This application relates to the field of riverbank protection pile technology, and in particular to a pine pile retaining wall structure for riverbank protection. Background Technology

[0002] In the field of water conservancy and ecological environment construction today, the comprehensive management of rivers has attracted much attention. Rivers not only shoulder basic water conservancy functions such as flood control, drainage, and irrigation, but are also key arteries of the ecosystem, playing a crucial role in maintaining biodiversity and shaping landscape aesthetics. Riverbank protection, as guardians of the stable operation of the river system, directly affects the long-term stability of the river and the healthy development of the surrounding ecosystem through its structural form and performance.

[0003] Traditional riverbank revetment pine pile retaining walls typically use pine piles as the core supporting element, which are driven into the bearing layer below the riverbed at specific intervals. The arrangement is mostly a close arrangement or a quincunx distribution.

[0004] Regarding the aforementioned technologies, the inventors believe that water flow will generate significant lateral thrust on the pine pile retaining wall. Since the anchoring connection between the pine pile and the riverbed soil is relatively weak, it is difficult to stabilize and fix it by relying solely on the friction of the pile body embedded in the soil. Utility Model Content

[0005] The purpose of this application is to provide a pine pile retaining wall structure for riverbank protection, in order to improve the problem that the pine pile retaining wall is difficult to stabilize and fix in the face of the lateral thrust of water flow on the pine pile retaining wall by relying solely on the friction of the pile body embedded in the soil.

[0006] This application provides a pine pile retaining wall structure for riverbank protection, which adopts the following technical solution:

[0007] A pine pile retaining wall structure for riverbank protection includes a riverbank slope, characterized in that: a fixing groove is provided on the side of the riverbank close to the river, a cast-in-place bearing layer is provided in the fixing groove, a plurality of pine piles are provided in the cast-in-place bearing layer along the length of the riverbank slope and arranged in the vertical direction, and a plurality of fixing bars are provided in the cast-in-place bearing layer corresponding to the pine piles in the vertical direction, the fixing bars being inserted into the pine piles.

[0008] By adopting the above technical solution, the setting of fixing bars strengthens the connection between the pine piles and the riverbed soil. When the water flow generates lateral thrust, the pine piles can transfer the force to the cast bearing layer with the help of the fixing bars. The cast bearing layer tightly fills the fixing groove, forming a continuous and solid load-bearing whole with the riverbed soil. When the water flow impact generates lateral thrust, the cast bearing layer can disperse the force to the riverbed, ensuring the bearing stability of the foundation and reducing the risk of collapse.

[0009] Optionally, the adjacent pine stakes are fitted together.

[0010] By adopting the above technical solution, multiple pine piles are closely connected to form a structure similar to a continuous wall, which improves the overall ability to resist the impact of water flow and distributes the force evenly to the adjacent piles. This reduces problems such as pile tilting and breakage caused by uneven local stress, thereby reducing the frequency of maintenance and saving long-term maintenance costs.

[0011] Optionally, adjacent pine stakes are provided with slots along the vertical direction, and insert plates are inserted into the slots.

[0012] By adopting the above technical solutions, it is helpful to strengthen the connection between adjacent wooden piles, further limit the relative displacement between the wooden piles, enable the wooden piles to better cooperate in bearing the force under the impact of water flow, reduce stress concentration points, reduce the risk of structural damage caused by excessive local stress, and ensure the integrity of the retaining wall.

[0013] Optionally, the slot penetrates the portion of the pine pile above the cast-in-place bearing layer, and the insert plate is adapted to the slot.

[0014] By adopting the above technical solutions, the stress and deformation of various parts of the wooden pile can be better coordinated, so that the entire pine pile can remain balanced and stable under the impact of water flow, ensuring the long-term stability of the retaining wall structure.

[0015] Optionally, the slots gradually increase in size from bottom to top.

[0016] By adopting the above technical solution, operators can more easily insert the plug into the slot, reducing construction difficulty, improving construction efficiency, and reducing the cost increase caused by slow construction, such as labor costs and extended equipment rental time.

[0017] Optionally, a baffle is provided between the pine pile and the riverbank in the pouring bearing layer, with the two sides of the baffle abutting against one side of the pine pile and the side of the riverbank closer to the river, respectively.

[0018] By adopting the above technical solution, the stability of the pine piles is enhanced by setting up baffles. At the same time, the baffles block the riverbank slope. The soil of the riverbank slope is easily loosened due to the influence of water flow and rainwater infiltration. The baffles are closely attached to the riverbank slope to form lateral support and resist the lateral sliding tendency of the soil caused by its own weight and water pressure difference.

[0019] Optionally, the baffle extends upward above the fixing groove.

[0020] By adopting the above technical solutions, the blocking capacity of the baffle corresponding to the riverbank slope is improved, which helps to prevent the sliding of the riverbank soil.

[0021] Optionally, the outer wall of the pine pile is provided with an anti-corrosion layer.

[0022] By adopting the above technical solutions, the anti-corrosion layer helps to isolate corrosive substances from the outside world, such as microorganisms and chemical ions in water, and slows down the corrosion rate of pine piles; the protection of the anti-corrosion layer enables pine piles to maintain structural strength for a long time, stably play a supporting role, and ensure the stability of the overall structure of the retaining wall.

[0023] In summary, this application includes at least one of the following beneficial technical effects of pine pile retaining wall structures used for riverbank protection:

[0024] 1. The installation of fixing bars strengthens the connection between the pine piles and the riverbed soil. When the water flow generates lateral thrust, the pine piles can transfer the force to the cast bearing layer with the help of the fixing bars. The cast bearing layer tightly fills the fixing groove, forming a continuous and solid load-bearing whole with the riverbed soil. When the water flow impacts and generates lateral thrust, the cast bearing layer can disperse the force to the riverbed, ensuring the bearing stability of the foundation and reducing the risk of collapse.

[0025] 2. It helps to strengthen the connection between adjacent wooden piles, further restrict the relative displacement between the piles, enable the piles to better cooperate in bearing the force under the impact of water flow, reduce stress concentration points, reduce the risk of structural damage caused by excessive local stress, and ensure the integrity of the retaining wall;

[0026] 3. By setting up baffles to enhance the stability of pine piles, the baffles also block the riverbank slope. The soil on the riverbank slope is easily loosened due to the influence of water flow and rainwater infiltration. The baffles fit tightly with the riverbank slope to form lateral support and resist the lateral sliding tendency of the soil caused by its own weight and water pressure difference. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a pine pile retaining wall used for riverbank protection;

[0028] Figure 2 This is a schematic diagram used to illustrate the fixed rib structure in the embodiment.

[0029] In the diagram, 1 is the riverbank; 11 is the fixing trench; 2 is the cast-in-place bearing layer; 3 is the pine pile; 4 is the fixing reinforcement; 5 is the slot; 51 is the insert plate; 6 is the baffle; and 7 is the anti-corrosion layer. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 -Appendix Figure 2 This application will be described in further detail below.

[0031] A pine pile three-retaining wall structure for riverbank protection, referenced Figure 1The structure includes a riverbank slope 1. On the side of the riverbank slope 1 closest to the river, a fixed trench 11 is constructed using mechanical excavation. This fixed trench 11 is elongated and matches the contour of the riverbank slope 1. A cast-in-place bearing layer 2 is constructed within the fixed trench 11. The cast-in-place bearing layer 2 is composed of on-site cast-in-place concrete, the strength of which is determined based on factors such as the actual water flow impact force and geological conditions of the river, and is generally not lower than C25. It is evenly distributed along the length of the riverbank slope 1, and several pine piles 3 are installed along the vertical direction.

[0032] Reference Figure 1 The pine stake 3 is made of selected straight pine wood, and its outer wall is coated with an anti-corrosion layer 7. The anti-corrosion layer 7 is made of epoxy resin and coal tar pitch, with a coating thickness of about 2-3 mm. It is applied by brushing to make it adhere tightly to the surface of the pine stake 3, thereby isolating it from external moisture and corrosive substances and extending the service life of the pine stake 3.

[0033] Reference Figure 2 Along the vertical direction of the bearing layer 2, corresponding to the center position of each pine pile 3, several fixing bars 4 are set. The fixing bars 4 are made of threaded steel with a diameter of 10-16 mm. One end is pre-bent into a hook shape. When the concrete of the bearing layer 2 is poured, the hook part is embedded in the concrete. The other end passes through the hole pre-drilled in the pine pile 3. The diameter of the hole is slightly larger than the diameter of the fixing bar 4 by 2-3 mm to facilitate the installation. After installation, the bearing layer 2 is poured to make the pine pile 3 and the bearing layer 2 tightly fixed, strengthen the connection between the two, and effectively resist the lateral thrust of the water flow.

[0034] Reference Figure 1 , Figure 2 A baffle 6 is installed between the pine pile 3 and the riverbank 1 in the pouring of the bearing layer 2. The baffle 6 is a precast reinforced concrete slab with bidirectional reinforcing bars of 8-12 mm diameter spaced 15-20 cm apart, forming a stable steel mesh structure. During installation, one side of the baffle 6 is tightly bonded to the side of the pine pile 3 facing the riverbank 1 with cement mortar, while the other side is also bonded to the side of the riverbank 1 closest to the river using cement mortar, thus achieving a firm connection between the baffle 6 and the pine pile 3 and the riverbank 1, ensuring that it can effectively block the impact of water flow on the roots of the pine pile 3. Furthermore, the baffle 6 extends upwards above the fixing groove 11, with the protruding part reaching a height of 20-30 cm.

[0035] Reference Figure 1 , Figure 2Adjacent pine piles 3 are fitted together, and slots 5 are cut into adjacent pine piles 3 along the vertical direction. The depth of the slots 5 penetrates the pine pile 3 above the poured bearing layer 2, and the slots 5 gradually increase in size from bottom to top, forming a trapezoidal structure that is wider at the top and narrower at the bottom, which facilitates the insertion and fixing of the insert plate 51. The insert plate 51 is inserted into the slot 5. The insert plate 51 is made of corrosion-resistant high-strength fiber-reinforced composite material, with a thickness of 3-5 cm and a width that matches the widest part of the slot 5. The surface of the insert plate 51 can be processed with anti-slip textures, so that the connection between adjacent piles is tighter after being inserted into the slot 5.

[0036] The implementation principle of this application embodiment is as follows:

[0037] In practical use, the bearing layer 2 is reinforced by the fixing reinforcement 4 to strengthen the connection between the pine piles 3 and the riverbed soil, so that it no longer relies solely on the friction force of the pile body entering the soil, thus providing a solid foundation for the retaining wall; the adjacent pine piles 3 are closely fitted with the insert plate 51 to reduce water infiltration, enhance the overall integrity, and disperse lateral pressure; the retaining plate 6 strengthens the stable connection between the riverbank 1 and the pine piles 3; the anti-corrosion layer 7 of the pine piles 3 isolates external erosion and maintains the strength of the piles; and enhances the stability of the pine pile 3 retaining wall against the lateral thrust of the water flow.

[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A pine pile retaining wall structure for riverbank protection, comprising a riverbank slope (1), characterized in that: A fixed groove (11) is provided on the side of the riverbank (1) close to the river. A cast-in-place bearing layer (2) is provided in the fixed groove (11). A number of pine piles (3) are provided along the length of the riverbank (1) in the cast-in-place bearing layer (2) in the vertical direction. A number of fixing bars (4) are provided in the cast-in-place bearing layer (2) in the vertical direction corresponding to the pine piles (3). The fixing bars (4) are inserted into the pine piles (3).

2. The pine pile retaining wall structure for riverbank protection according to claim 1, characterized in that: The adjacent pine stakes (3) are fitted together.

3. A pine pile retaining wall structure for riverbank protection according to claim 2, characterized in that: The adjacent pine stakes (3) are provided with slots (5) in the vertical direction, and insert plates (51) are inserted into the slots (5).

4. A pine pile retaining wall structure for riverbank protection according to claim 3, characterized in that: The slot (5) penetrates the portion of the pine pile (3) above the cast bearing layer (2), and the insert plate (51) is adapted to the slot (5).

5. A pine pile retaining wall structure for riverbank protection according to claim 4, characterized in that: The slot (5) gradually increases in size from bottom to top.

6. A pine pile retaining wall structure for riverbank protection according to claim 1, characterized in that: The concrete bearing layer (2) is provided with a baffle (6) between the pine pile (3) and the riverbank (1). The baffle (6) is located on both sides of the riverbank (1) and abuts against one side of the pine pile (3) and the side of the riverbank (1) that is close to the river.

7. A pine pile retaining wall structure for riverbank protection according to claim 6, characterized in that: The baffle (6) extends upward above the fixing groove (11).

8. A pine pile retaining wall structure for riverbank protection according to claim 1, characterized in that: The outer wall of the pine pile (3) is provided with an anti-corrosion layer (7).

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