Soft ground embankment structure

Abstract

The application discloses a soft soil foundation embankment structure, which comprises a road surface, a soft soil layer is laid at the bottom of the road surface, a first inserted pile is connected below the road surface and inserted into the soft soil layer, a water-facing slope is arranged on the side of the soft soil layer close to a water body, a wire mesh surface is arranged between the water-facing slope and the soft soil layer, the first inserted pile is arranged below the road surface, and the first inserted pile and a curved pile are in sliding connection, one end of the curved pile is deeply inserted into the soil until reaching a hard soil layer, and the other end of the curved pile is distributed in the soft soil layer, the soft soil layer has a greater flowability than the hard soil layer, the curved pile can autonomously bend and reversely push the second inserted pile, the water-facing slope can be supported after soil loss, the area subjected to continuous impact and collapse under the action of water flow is avoided, the continuous concave collapse trend of the soil loss area is greatly slowed down, and the safety of the whole embankment is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of dikes, and in particular to a dike structure for soft soil foundations. Background Technology

[0002] A dike is a construction project built beside a river or lake to resist floods and block tides and waves.

[0003] However, due to the continuous flow of the river, the soil at the dike is inevitably affected by the river's moisture, forming soft soil. During landslides and subsidence, local collapses of the dike can occur. Once a local collapse occurs, the river's flow will repeatedly scour the collapsed area, causing the collapse to become more severe and potentially leading to a breach.

[0004] To prevent potential erosion breaches in dikes built on soft soil foundations, a dike specifically designed for soft soil foundations is needed.

[0005] Therefore, we propose a soft soil foundation embankment structure to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a soft soil foundation embankment structure to solve the problems mentioned in the background art. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A soft soil foundation embankment structure includes a road surface, a soft soil layer at the bottom of the road surface, a first pile inserted into the soft soil layer connected below the road surface, a water-facing slope provided on the side of the soft soil layer near the water body, a wire mesh surface provided between the water-facing slope and the soft soil layer, a second pile installed on the back of the water-facing slope, a curved pile provided in the soft soil layer, a third pile provided on the side of the curved pile away from the road surface, and a first pile provided below the road surface, wherein the first pile and the curved pile form a sliding connection.

[0009] In a further embodiment, the bottom of the first stake has a groove that engages with the outside of the curved stake, and the curved stake is parallel to the road surface at the point where it is close to the road surface.

[0010] In a further embodiment, the third pile is driven into a hard soil layer, and the curved pile is made of reinforced concrete in a curved structure.

[0011] In a further embodiment, the water-facing slope includes bricks and water-blocking blocks, and the inner side of the bricks is slidably connected to the water-blocking blocks by opening holes.

[0012] In a further embodiment, the water-blocking block has a frustum-shaped structure, and the holes on the brick form a mating connection with the water-blocking block.

[0013] In a further embodiment, the bent pile is slidably connected to the second pile through an opening, and the diameter of the end of the second pile away from the water-facing slope is smaller than the diameter of the end closer to the water-facing slope.

[0014] In a further embodiment, the end of the curved pile closer to the road surface sinks faster than the connection between the curved pile and the third stake.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention uses prefabricated curved piles to fix the second pile. One end of the curved pile is driven deep into the soil until it reaches the hard soil layer, while the other end is distributed in the soft soil layer. Taking advantage of the greater fluidity of the soft soil layer than the hard soil layer, the curved pile can bend autonomously and push the second pile in the opposite direction. This allows it to still support the water-facing slope after soil loss, preventing the area from continuously impacting and collapsing under the action of water flow. This greatly slows down the continuous sinking and collapse trend of the soil loss area and effectively improves the safety of the entire dike. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of a levee built on soft soil foundation.

[0018] Figure 2 This is a schematic diagram of the water-facing slope in a levee structure on soft soil foundation.

[0019] Figure 3 This is a schematic diagram of an improved water flow structure in a soft soil foundation embankment, where the impact of water flow is transformed into gradual vertical infiltration.

[0020] Figure 4 This is a schematic diagram of the first inserted pile and the bent pile in the embankment structure on soft soil foundation.

[0021] In the diagram: 1. Road surface; 2. First stake; 3. Water-facing slope; 301. Brick; 302. Water-blocking block; 4. Wire mesh surface; 5. Second stake; 6. Curved stake; 7. Third stake. Detailed Implementation

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figure 1-4In this embodiment of the invention, a soft soil foundation embankment structure includes a road surface 1, with a soft soil layer laid at the bottom of the road surface 1. A first pile 2, inserted into the soft soil layer, is connected below the road surface 1. A water-facing slope 3 is provided on the side of the soft soil layer closest to the water body. A wire mesh surface 4 is provided between the water-facing slope 3 and the soft soil layer. A second pile 5 is installed on the back of the water-facing slope 3. A curved pile 6 is provided within the soft soil layer. A third pile 7 is provided on the side of the curved pile 6 away from the road surface 1. The first pile 2 is located below the road surface 1, and the first pile 2 and the curved pile 6 form a sliding connection. A groove is provided at the bottom of the first pile 2 to engage with the outside of the curved pile 6. The curved pile 6 is parallel to the road surface 1 near the road surface 1, and the position of the curved pile 6 near the road surface 1 tends to be more inclined towards... With the road surface 1 parallel to the ground surface 1, the first pile 2 can be inserted more vertically into the upper surface of the curved pile 6. When the road surface 1 sinks, especially due to the rise of the river water, the long-term erosion of the road surface 1 and the soft soil under the road surface 1 will also cause the road surface 1 to sink. In this case, the pressure on the water-facing slope 3 will also increase sharply. Therefore, the sinking of the road surface 1 can also act on one end of the curved pile 6, improving the compressive strength of the water-facing slope 3. At the same time, as the soaking time continues to extend, the soil slippage and loosening effect of the upper soft soil layer becomes more and more obvious. The end of the curved pile 6 located under the road surface 1 will also bend downward due to the loss of soil support, thereby further improving the support force at the second pile 5 and reducing the risk of the second pile 5 sliding down.

[0026] The third pile 7 is inserted into the hard soil layer. The curved pile 6 is made of reinforced concrete and has a curved structure. The curved pile 6 is preset to be curved, and the center of gravity of the curved pile 6 is distributed at the end closer to the road surface 1, making it easier to start the bending from the end closer to the road surface 1. The bending of the curved pile 6 counteracts the sliding force of the second pile 5 at the bottom of the road surface 1, and is more likely to withstand the impact or pressure of water flow.

[0027] The bent pile 6 is connected to the second pile 5 by a hole. The diameter of the end of the second pile 5 away from the water-facing slope 3 is smaller than the diameter of the end close to the water-facing slope 3. As the bent pile 6 bends continuously, the hole will change from a straight hole to a conical hole, thereby further preventing the second pile 5 from sliding. The second pile 5 is also a cone-shaped pile, which can also effectively prevent itself from naturally sliding down and sinking.

[0028] The end of the curved pile 6 closest to the road surface 1 sinks faster than the connection between the curved pile 6 and the third stake 7. The curved pile 6 creates a bending range by the inconsistency in the sinking speeds of the two ends, thus resisting the sinking of the second stake 5 through bending.

[0029] Example 2: Please refer to Figure 1-4The difference from Embodiment 1 is that the water-facing slope 3 includes bricks 301 and water-blocking blocks 302. The inner side of the bricks 301 is connected to the water-blocking blocks 302 by opening holes. Since the bottom of the water-facing slope 3 is supported by soil, there is always soil support below the water-blocking blocks 302. Under the support of the soil, the water-blocking blocks 302 always block the water inlet of the bricks 301. As the soil sinks or slides more and more, the support disappears, and the water-blocking blocks 302 will also loosen. The purpose of opening the water inlet is to prevent the water-facing slope 3 from receiving all the pressure of the water flow, which would cause the bricks to crack. The more important purpose of the water-facing slope 3 is to reduce the impact of the water flow, which can play a role similar to a wave deflector.

[0030] The water-blocking block 302 has a frustum-shaped structure. The holes on the brick 301 are connected to the water-blocking block 302. The holes on the brick 301 can also prevent the water-blocking block 302 from falling off completely. It can still be used after the soil is refilled.

[0031] The working principle of this invention is:

[0032] When land subsidence occurs, soft soil areas may loosen or experience landslides. The bent pile 6 located at the first pile 2 will bend downwards first. The bending is due to soil loss from landslides. The bent pile 6 loses soil support, causing the entire bent pile 6 to bend downwards. The third pile 7 is inserted into a harder soil layer and tends to be inserted vertically. It has greater friction and therefore sinks and bends less. As a result, the bent pile 6 will gradually bend outwards, further pushing the second pile 5.

[0033] Due to soil subsidence and erosion, the soft soil below the water-facing slope 3 gradually decreases, and the supporting force also gradually decreases. Therefore, by pushing the second pile 5, the loss of supporting force caused by soil erosion can be offset.

[0034] Because the subsidence and soil loss vary at different points along the embankment, areas with severe soil erosion will experience depressions in the water-facing slope 3. This invention avoids the downward collapse of the water-facing slope 3 by replacing the supporting force. The bricks 301 used in the water-facing slope 3 have holes on their surface. Although the water flow can come into contact with the inner soft soil, the impact force has been weakened by the water-facing slope 3, preventing the embankment from experiencing localized subsidence and depression, which would cause the water flow to impact and cause further depression. In addition, the holes can also reduce the load on the water-facing slope 3.

[0035] The above methods are mainly intended to slow down the erosion of the soft soil layer by water flow, but they cannot fundamentally solve the problem. When a large amount of soil is lost, a hollow area appears below the water-facing slope 3, and a large amount of soil is filled in to supplement the supporting force.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A levee structure for soft soil foundation, characterized in that: The road surface (1) is provided with a soft soil layer at the bottom. A first pile (2) inserted into the soft soil layer is connected below the road surface (1). A water-facing slope (3) is provided on the side of the soft soil layer that is close to the water body. A wire mesh surface (4) is provided between the water-facing slope (3) and the soft soil layer. A second pile (5) is installed on the back of the water-facing slope (3). A curved pile (6) is provided in the soft soil layer. A third pile (7) is provided on the side of the curved pile (6) away from the road surface (1). A first pile (2) is provided below the road surface (1). The first pile (2) and the curved pile (6) form a sliding connection. The third pile (7) is inserted into the hard soil layer, and the curved pile (6) is made of reinforced concrete in a curved structure; The end of the curved pile (6) closer to the road surface (1) sinks faster than the connection between the curved pile (6) and the third pile (7); The bent pile (6) is connected to the second pile (5) through a hole, and the diameter of the end of the second pile (5) away from the water-facing slope (3) is smaller than the diameter of the end close to the water-facing slope (3).

2. The soft soil foundation embankment structure according to claim 1, characterized in that: The first stake (2) has a groove at its bottom that engages with the outside of the curved stake (6), and the curved stake (6) is parallel to the road surface (1) near the road surface (1).

3. A soft soil foundation embankment structure according to claim 1, characterized in that: The water-facing slope (3) includes bricks (301) and water-blocking blocks (302). The inner side of the bricks (301) is connected to the water-blocking blocks (302) by opening holes.

4. A soft soil foundation embankment structure according to claim 3, characterized in that: The water-blocking block (302) has a frustum-shaped structure, and the holes on the brick (301) are connected to the water-blocking block (302).

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