A reinforcement structure for soft soil strata

Abstract

This utility model discloses a reinforcement structure for soft soil strata, including drainage boards evenly distributed in the transverse and longitudinal directions on the horizontal plane of the soft soil layer. Pressure-resistant drainage pipes are evenly distributed in the soft soil layer between two rows of longitudinal drainage boards, forming a rhomboid structure between adjacent pressure-resistant drainage pipes and adjacent drainage boards. This improves the pressure resistance of the drainage boards and pressure-resistant drainage pipes on the soft soil layer and increases drainage volume. A vacuum collection pipe is set on one longitudinal side of the pressure-resistant drainage pipe, which is connected to the nearby drainage boards and pressure-resistant drainage pipes. The outlets on both sides of the vacuum collection pipe extend into a water tank, allowing high-pressure water from the pressure-resistant drainage pipes and drainage boards to drain into the vacuum structure, further improving drainage efficiency. Furthermore, it accelerates the flow of internal water in the soft soil layer towards the pressure-resistant drainage pipes and drainage boards, increasing drainage volume. An impermeable layer prevents external water sources from seeping into the soft soil layer, enhancing the cohesive effect of the soft soil layer.

Description

Technical Field

[0001] This utility model relates to the field of soft soil strata reinforcement technology, specifically to a soft soil strata reinforcement structure. Background Technology

[0002] Soft soil subgrade refers to subgrades characterized by loose soil, low strength, and easy deformation. Subgrade treatment and filling are crucial aspects of road construction. Methods for treating soft soil subgrade sections include in-situ reinforcement, non-in-situ reinforcement, and subgrade filling. Non-in-situ reinforcement often employs drainage consolidation, which works by creating negative pressure through vacuuming, accelerating the drainage of pore water, increasing effective stress, and achieving soft soil consolidation. The uniform application of negative pressure avoids shear deformation, making it suitable for large-area treatment.

[0003] In the prior art, the publication (announcement) number CN222008872U discloses a reinforcement treatment structure for soft soil foundation with silty strata. The drainage board adopts an array structure for siphon drainage, and the drainage is collected through a collection pipe. This structure has drawbacks such as simple drainage structure, increased drainage flow, and pressure resistance, and cannot achieve further rapid drainage. Improvements are needed in the drainage board structure, drainage capacity, and pressure resistance structure.

[0004] Therefore, a reinforcement structure for soft soil layers is needed. Utility Model Content

[0005] In view of the problems existing in the prior art, the present invention provides a reinforcement structure for soft soil strata, aiming to solve the aforementioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reinforcement structure for soft soil strata, comprising drainage boards evenly distributed in the transverse and longitudinal directions on the horizontal plane of the soft soil layer, and pressure-resistant drainage pipes evenly distributed in the soft soil layer between two rows of drainage boards in the longitudinal direction, forming a rhomboid structure between two adjacent pressure-resistant drainage pipes and two adjacent drainage boards, thereby improving the pressure resistance of the drainage boards and pressure-resistant drainage pipes on the soft soil layer and increasing the drainage volume. A vacuum collection pipe is set on one longitudinal side of the pressure-resistant drainage pipe, which is connected to the nearby drainage boards and pressure-resistant drainage pipes. The outlets on both sides of the vacuum collection pipe extend into the water tank. The upper part of the soft soil layer is sequentially configured with a vacuum membrane layer, a geogrid layer, a sand and gravel layer, and an impermeable layer.

[0007] Preferably, the drainage board has a threaded structure at the top and a pointed structure at the bottom, and the lower surface of the drainage board has a support layer evenly distributed from top to bottom. The threaded structure and the vacuum collection pipe are installed through a threaded quick-connect head.

[0008] Preferably, the surface of the drainage board has multiple rows of filter holes evenly distributed, with the filter holes in adjacent rows being staggered.

[0009] Preferably, the external transverse cross-section of the pressure-resistant drainage pipe has a honeycomb structure, the internal structure is a circular pipe, the top of the pressure-resistant drainage pipe is provided with a threaded structure, and the bottom is provided with a pointed structure.

[0010] Preferably, the longitudinal surface of the pressure-resistant drainage pipe is evenly distributed with filter outlets, and the filter outlets in two adjacent rows are arranged in an alternating structure.

[0011] Preferably, the pressure-resistant drainage pipe and the drainage board form a regular rhombus structure.

[0012] In summary, this utility model provides a reinforcement structure for soft soil strata. This patented utility model employs a rhomboid structure formed between two adjacent pressure-resistant drainage pipes and two adjacent drainage boards, increasing the collection and discharge of water within the soft soil layer. Furthermore, the enclosed rhomboid structure further alleviates the compression of the pressure-resistant drainage pipes and drainage boards by the soft soil layer outside the rhomboid structure, increasing capillary water storage capacity, improving drainage efficiency, and reducing the waiting time for the soft soil layer to consolidate and harden. The water flow from the pressure-resistant drainage pipes and drainage boards is collected and discharged through a vacuum collection pipe. This vacuum collection pipe utilizes a vacuum structure, allowing high-pressure water from the pressure-resistant drainage pipes and drainage boards to drain into the vacuum structure, further improving drainage efficiency. This further accelerates the flow of water within the soft soil layer towards the pressure-resistant drainage pipes and drainage boards, increasing drainage volume. The impermeable layer prevents external water sources from seeping into the soft soil layer, enhancing the cohesion effect of the soft soil layer. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the distribution structure of the drainage board, pressure-resistant drainage pipe, and vacuum collection pipe in the reinforcement structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the rhomboid structure formed by the enclosure of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the soft soil layer reinforcement of this utility model;

[0016] Figure 4 This is a schematic diagram of the drainage board structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the pressure-resistant drainage pipe structure of this utility model;

[0018] In the diagram: 1. Soft soil layer; 2. Drainage board; 3. Pressure-resistant drainage pipe; 4. Vacuum collection pipe; 5. Water trough; 6. Rhomboid structure; 7. Vacuum membrane layer; 11. Geogrid layer; 12. Sand and gravel layer; 13. Impermeable layer; 14. Threaded structure one; 15. Tipped structure one; 16. Support layer; 17. Filter hole one; 21. Threaded structure two; 22. Tipped structure two; 23. Filter port one. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] like Figures 1 to 5 As shown:

[0021] This utility model is a reinforcement structure for soft soil strata, including drainage boards 2 distributed equidistantly in the transverse and longitudinal directions on the horizontal plane of the soft soil layer 1. Pressure-resistant drainage pipes 3 are distributed equidistantly between two rows of drainage boards 2 in the longitudinal direction of the soft soil layer 1, so as to form a rhomboid structure 6 between two adjacent pressure-resistant drainage pipes 3 and two adjacent drainage boards 2, so as to improve the pressure resistance of the drainage boards 2 and pressure-resistant drainage pipes 3 on the soft soil layer 1 and increase the drainage volume. One longitudinal side of the pressure-resistant drainage pipe 3 is set as a vacuum collection pipe 4, which is connected to the nearby drainage boards 2 and pressure-resistant drainage pipes 3. The outlets on both sides of the vacuum collection pipe 4 extend into the water tank 5. The upper part of the soft soil layer 1 is sequentially set as a vacuum membrane layer 7, a geogrid layer 11, a sand and gravel layer 12, and an impermeable layer 13.

[0022] To further improve upon existing technology and increase the drainage capacity of the soft soil layer 1, as well as the drainage board 2 and the pressure-resistant drainage pipe 3 within the soft soil layer 1, the technical principle adopted in this utility model patent is as follows: Drainage boards 2 are evenly arrayed and laid in holes drilled inside the soft soil layer 1. Pressure-resistant drainage pipes 3 are laid between two drainage boards 2 in each row or column. The placement of the pressure-resistant drainage pipes 3 increases the contact area with the soft soil layer 1, further improving drainage. The pressure-resistant drainage pipes 3 are positioned at the center of the four circumferential drainage boards 2, and between adjacent pressure-resistant drainage pipes 3 and adjacent… The two drainage boards 2 form a rhombus structure, which increases the water collection and discharge inside the soft soil layer 1. The enclosed rhombus structure further alleviates the compression of the soft soil layer 1 outside the rhombus structure by the pressure-resistant drainage pipe 3 and drainage board 2, increases the capillary water storage capacity, increases drainage efficiency, and reduces the waiting time for the soft soil layer 1 to consolidate and harden. The water flow from the pressure-resistant drainage pipe 3 and drainage board 2 is collected and discharged through the vacuum collection pipe 4. The vacuum collection pipe 4 adopts a vacuum structure, and the high-pressure water flow from the pressure-resistant drainage pipe 3 and drainage board 2 is drained into the vacuum structure, which further improves the drainage efficiency.

[0023] To increase the water flow velocity inside the pressure-resistant drainage pipe 3 and drainage board 2, a vacuum membrane layer 7, a geogrid layer 11, a sand and gravel layer 12, and an impermeable layer 13 are sequentially arranged on the upper part of the soft soil layer 1. The vacuum membrane layer 7 can create a vacuum in the soft soil layer 1, reducing the pressure on the surface pores of the soft soil layer 1, and accelerating the flow of water inside the soft soil layer 1 to the pressure-resistant drainage pipe 3 and drainage board 2, thereby increasing the drainage volume. The geogrid layer 11 and sand and gravel layer 12 are used to pressurize the soft soil layer 1, further accelerating the flow of water inside the soft soil layer 1 to the pressure-resistant drainage pipe 3 and drainage board 2, thereby increasing the drainage volume. The impermeable layer 13 is used to prevent external water sources from seeping into the soft soil layer 1, thereby enhancing the cohesive effect of the soft soil layer 1.

[0024] In at least one embodiment, to achieve rapid solidification of the soft soil layer 1, a drainage board 2 and a vacuum collection pipe 4 are connected by a threaded installation structure. Specifically, the drainage board 2 has a threaded structure 14 at the top and a pointed structure 15 at the bottom. The threaded structure 14 and the vacuum collection pipe 4 are installed using a threaded quick-connect head. To ensure stable installation and support of the drainage board 2, a support layer 16 is evenly distributed from top to bottom on the lower surface of the drainage board 2. The support layer 16 interacts with the soft soil layer 1, preventing the drainage board 2 from sliding upward. This allows the drainage board 2 to remain inside the soft soil layer 1, achieving a drainage effect from bottom to top and improving the thorough consolidation of the soft soil layer 1.

[0025] In at least one embodiment, in order to increase the drainage contact area between the drainage board 2 and the soft soil layer 1 and to obtain more water flow to the interior of the drainage board 2, multiple rows of filter holes 17 are evenly opened on the surface of the drainage board 2, and the filter holes 17 on adjacent rows are staggered.

[0026] In at least one embodiment, in order to improve the compressive strength and drainage capacity of the pressure-resistant drainage pipe 3 located in the middle of the surrounding drainage board 2, the pressure-resistant drainage pipe 3 is designed with a honeycomb structure in its outer transverse cross section and a circular pipe structure inside; and is stably supported inside the soft soil layer 1. The top of the pressure-resistant drainage pipe 3 is provided with a threaded structure 21 to realize the quick-connect structure between the pressure-resistant drainage pipe 3 and the vacuum collection pipe 4, and the bottom is provided with a pointed structure 22 to realize the stable support of the pressure-resistant drainage pipe 3 inside the soft soil layer 1 and to stably drain water from the soft soil layer 1.

[0027] In at least one embodiment, in order to increase the drainage effect of the pressure-resistant drainage pipe 3 and increase the contact drainage surface between the pressure-resistant drainage pipe 3 and the soft soil layer 1, filter openings 23 are evenly distributed on the longitudinal surface of the pressure-resistant drainage pipe 3. In this embodiment, the filter openings 23 are preferably long strip-shaped structures, and the filter openings 23 in two adjacent rows are arranged in an interlaced structure to increase the drainage volume of the pressure-resistant drainage pipe 3 to the soft soil layer 1 and improve the consolidation effect of the soft soil layer 1.

[0028] In at least one embodiment, in order to improve the compressive strength and achieve a regular and uniform drainage effect, a rhomboid structure 6 is formed between the compressive drainage pipe 3 and the drainage board 2 to achieve uniformity of the compressive pressure and drainage volume of the soft soil layer 1 against the compressive drainage pipe 3 and the drainage board 2, so that the drainage volume of each compressive drainage pipe 3 and the drainage board 2 is uniform, which further improves the drainage of water inside the soft soil layer 1 and reduces the hardening time.

[0029] The embodiments described in this utility model are for illustrative purposes only and do not constitute a limitation on the scope of the claims. Other substantially equivalent substitutions that can be conceived by those skilled in the art are all within the protection scope of this utility model.

Claims

1. A reinforcement structure for soft soil strata, characterized in that, The soft soil layer (1) is provided with drainage boards (2) distributed equidistantly in the horizontal and longitudinal directions on the horizontal plane. The soft soil layer (1) between the two rows of drainage boards (2) in the longitudinal direction is provided with pressure-resistant drainage pipes (3) distributed equidistantly to form a rhomboid structure (6) between two adjacent pressure-resistant drainage pipes (3) and two adjacent drainage boards (2) to improve the pressure resistance of the drainage boards (2) and pressure-resistant drainage pipes (3) on the soft soil layer (1) and increase the drainage volume. The longitudinal side of the pressure-resistant drainage pipe (3) is provided with a vacuum collection pipe (4). The vacuum collection pipe (4) is connected to the nearby drainage boards (2) and pressure-resistant drainage pipes (3). The outlets on both sides of the vacuum collection pipe (4) extend into the water tank (5). The upper part of the soft soil layer (1) is provided with a vacuum membrane layer (7), a geogrid layer (11), a sand and gravel layer (12), and an impermeable layer (13) in sequence.

2. The reinforcement structure for soft soil strata according to claim 1, characterized in that, The drainage board (2) has a threaded structure (14) at the top and a pointed structure (15) at the bottom. The lower surface of the drainage board (2) is evenly distributed with a support layer (16) from top to bottom. The threaded structure (14) and the vacuum manifold (4) are installed by a threaded quick-connect head.

3. The reinforcement structure for soft soil strata according to claim 2, characterized in that, The surface of the drainage board (2) is uniformly opened with multiple rows of filter holes (17), and the filter holes (17) on adjacent rows are staggered.

4. The reinforcement structure for soft soil strata according to claim 1, characterized in that, The external transverse section of the pressure-resistant drainage pipe (3) has a honeycomb structure and an internal circular pipe structure. The top of the pressure-resistant drainage pipe (3) is provided with a threaded structure (21) and the bottom is provided with a pointed structure (22).

5. The reinforcement structure for soft soil strata according to claim 4, characterized in that, The longitudinal surface of the pressure-resistant drainage pipe (3) is evenly distributed with filter openings (23), and the filter openings (23) in adjacent columns are arranged in an alternating structure.

6. The reinforcement structure for soft soil strata according to claim 1, characterized in that, The pressure-resistant drainage pipe (3) and the drainage board (2) form a rhomboid structure (6).

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