Soft foundation treatment drainage pipe and matched drainage plate

Abstract

The invention relates to the technical field of soft foundation treatment, and discloses a soft foundation treatment drainage pipe and a matched drainage plate, the drainage pipe comprises a vacuum pipe and a connecting assembly which are communicated, the connecting assembly comprises a first side wall, a first bottom plate and a first top plate, the first bottom plate and the first top plate are integrally formed or connected with the first side wall, and the first bottom plate and the first top plate are oppositely arranged; the first bottom plate and the second bottom plate can get close to each other depending on the deformability of the first side wall, a bayonet is formed in the first side wall close to the first bottom plate, and a deflection assembly slidably connected with the drainage plate is arranged on the first bottom plate; the drainage plate is detachably connected with the deflection assembly and selectively drives the first top plate to move in the direction away from the first bottom plate after being bent through the deflection assembly. The drainage plate can be selectively bent under the action of the deflection assembly and drives the first top plate to move in the direction away from the first bottom plate, so that the hollow space of the connecting device is enlarged in the working state, sludge blockage is prevented, and the drainage efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of soft foundation treatment, in particular to a soft foundation treatment drainage pipe and a matching drainage board. Background Art

[0002] In the soft soil foundation treatment process, in order to effectively accelerate the drainage and consolidation process of soft soil and significantly improve the bearing capacity and stability of the foundation, a drainage system design combining drainage boards and drainage pipes is often used. In the actual construction operation of the drainage consolidation method, plastic drainage boards are key materials. Its structure is that the middle is an extruded plastic core board, which serves as the skeleton and drainage channel of the drainage belt, and the cross section is in the shape of a parallel cross; both sides are wrapped with non-woven geotextiles as filter layers. The core board not only plays a supporting role, but also can discharge the water that penetrates the filter layer upward. When treating saturated clay soils such as silt, silt soil, backfill soil, and soft soil foundations of miscellaneous fill soil, the use of drainage consolidation method is a high-quality vertical drainage channel, which can greatly shorten the consolidation time of soft soil. The top of the plastic drainage belt is generally connected to the horizontally set drainage pipe through a branch pipe, and the drainage pipe is finally connected in series to the vacuum pump. After laying the geotextile and sealing membrane, vacuum preloading operations can be carried out.

[0003] The patent with announcement number CN208293557U discloses a connection device for a straight-discharge vacuum preloading vacuum tube and a plastic drain board, which is used for the connection and fixation between the vacuum tube and the plastic drain board. The connection device is a hollow trapezoidal box-type joint. The two side ends of the trapezoidal box-type joint respectively have circular connectors for connecting the vacuum tube, and the other two side ends of the trapezoidal box-type joint respectively have drain board interfaces for inserting the plastic drain board. The vacuum tube and the plastic drain board are connected through the trapezoidal box-type connector; the hollow interior of the trapezoidal box-type joint is a water-passing space. The trapezoidal box-type joint is a hollow box-type structure, and its internal space is used as a water-passing space. It can improve the drainage efficiency and prevent silt blockage under the premise of ensuring the vacuum degree.

[0004] Although the above patent scheme has shown great advantages in practical applications, after practical testing and in-depth analysis, it still exposes several defects that need to be solved. First, the shape of the trapezoidal box joint is a fixed structure and lacks foldability. During transportation and carrying, it occupies a large space, increasing transportation costs and operating difficulties. Second, the plastic drain board is fixed with a cross-shaped large round flat head screw for constant pressure. During long-term use, the screws are prone to loosening due to the influence of foundation settlement, soil deformation and external environmental factors, resulting in the risk of the plastic drain board falling off. Once the plastic drain board falls off, it will not only affect the normal operation of the drainage system and reduce drainage efficiency, but also may cause the quality of the entire soft soil foundation treatment project to decline, increasing subsequent maintenance costs and engineering risks. In addition, the device has many parts and components. During the construction process, due to the complex on-site environment and frequent personnel operations, it is easy to lose parts and components, affecting the overall performance of the device. Third, the insertion depth of the plastic drain board is currently mainly determined by the experience and on-site judgment of the construction personnel. Due to the lack of accurate measurement and control methods, it is easy to have too much or insufficient insertion depth, affecting the drainage effect.

[0005] Therefore, in response to the above problems, it is urgent to develop a more optimized soft foundation treatment drainage pipe and supporting drainage board to meet the growing high-quality needs of soft soil foundation treatment projects. Summary of the invention

[0006] The present invention aims to provide a soft foundation treatment drainage pipe and a matching drainage board to overcome the above-mentioned shortcomings.

[0007] In order to achieve the above object, the technical solution of the present invention is:

[0008] Soft foundation treatment drainage pipe and matching drainage board, including:

[0009] The drain pipe includes a connected vacuum tube and a connecting assembly, the connecting assembly includes a first side wall, a first bottom plate and a first top plate integrally formed or connected with the first side wall, the first bottom plate and the first top plate are arranged opposite to each other, and the two can approach each other by relying on the deformation ability of the first side wall, the first side wall is provided with a bayonet near the first bottom plate, and the first bottom plate is provided with a deflection assembly slidably connected to the drain plate, one end of the deflection assembly is fixedly connected to the bayonet, and the other end faces the first top plate; and

[0010] The drainage plate is detachably connected to the deflection assembly, and can selectively bend through the deflection assembly to drive the first top plate to move in a direction away from the first bottom plate.

[0011] Furthermore, the deflection assembly comprises:

[0012] an extension sleeve in a strip shape and fixedly connected to the bayonet; and

[0013] A deflection sleeve is arranged inside the connection assembly and connected to the extension sleeve. After the deflection sleeve is bent, one end thereof away from the extension sleeve is arranged toward the first top plate. The extension sleeve and the deflection sleeve are respectively slidably connected to the drainage board.

[0014] Furthermore, the deflection assembly also includes: one end of the deflection sleeve away from the extension sleeve is hinged to one end of the flip frame, and the drainage plate selectively abuts against the bottom of the flip frame, driving the other end of the flip frame to abut against the lower end of the first top plate, and overcome the deformation ability of the first side wall to make it move away from the first bottom plate.

[0015] Furthermore, the deflection sleeve is a rectangular frame structure, including a second side plate and a second bottom plate and a second top plate integrally formed with or connected to the second side plate. The lower surface of the second top plate is hinged to one end of the flip frame. The second bottom plate is provided with a movable notch that is compatible with the flip frame. The flip frame can be embedded in the movable notch by its own gravity, or abut against the lower surface of the second top plate under the action of the drainage board.

[0016] Further, the deflection assembly further comprises a worm rotatably connected within the extension sleeve;

[0017] The drainage board includes a core plate and a filter layer sleeved on the outside of the core plate. The core plate is provided with transmission racks on both sides along its width direction. At least one of the transmission racks is meshed with at least one of the worms for transmission. The filter layer is embedded in the extension sleeve.

[0018] Further, the extension sleeve is also a rectangular frame structure, including a third side plate and a third bottom plate and a third top plate integrally formed or connected with the third side plate;

[0019] The middle section of the core plate is in a parallel cross shape and is provided with a water trough. A sliding protrusion is provided between the second bottom plate and the second top plate and / or between the third bottom plate and the third top plate, and the sliding protrusion is slidably connected to the water trough.

[0020] Furthermore, a stop plate is fixedly connected to the lower surface of the first top plate, and the other end of the flip plate selectively slides against the stop plate. A stop edge is provided on the side of the stop plate close to the bayonet, and the stop edge is used to limit the other end of the flip plate when it slides on the stop plate.

[0021] Furthermore, there are two bayonet holes, which are located on the left and right sides of the first side wall. The bayonet holes, the extension sleeves and the deflection sleeves are arranged in one-to-one correspondence, and a connecting rod is fixedly connected between the two extension sleeves.

[0022] Furthermore, both the front and rear sides of the first side wall are connected with connectors, and the connectors are connected with the vacuum tube.

[0023] Furthermore, one end of the vacuum tube is sleeved on the peripheral side of the connector and is fastened by a cable tie sleeved on the peripheral side.

[0024] Compared with the prior art, the present invention has at least the following advantages:

[0025] The connection device of the present invention adopts a foldable structure. Through the deformation ability of the first side wall, the first top plate and the first bottom plate can be moved closer to or farther away from each other. This design allows the connection device to be folded and stored when not in use, greatly reducing the transportation and storage space, reducing transportation costs and operating difficulties, and has significant advantages over the fixed structure trapezoidal box joint in the prior art. The drainage plate can be selectively bent through the action of the deflection assembly, and drives the first top plate to move in a direction away from the first bottom plate, thereby increasing the hollow space of the connection device in the working state, preventing silt blockage, and further improving drainage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 This is a schematic diagram of the overall structure of the soft foundation treatment drainage pipe and the matching drainage board of the present invention;

[0028] Figure 2 It is a cross-sectional view of the soft foundation treatment drainage pipe and the matching drainage board of the present invention;

[0029] Figure 3 Another cross-sectional view of the soft foundation treatment drainage pipe and the matching drainage board of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the deflection assembly of the present invention.

[0031] Figure numerals: 1. vacuum tube; 2. connecting device; 3. deflection assembly; 4. drainage plate; 5. stop plate; 6. connecting rod; 7. connecting head; 8. cable tie; 21. first side wall; 22. first bottom plate; 23. first top plate; 31. extension sleeve; 32. deflection sleeve; 33. flip frame; 34. worm; 41. core plate; 42. transmission rack; 43. water trough; 44. filter layer; 311. third side plate; 312. third bottom plate; 313. third top plate; 321. second side plate; 322. second bottom plate; 323. second top plate; 324. movable notch. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Reference Figure 1-3 The present invention relates to a soft foundation treatment drainage pipe and a matching drainage board. The drainage pipe includes a vacuum tube 1 and a connecting assembly 2 which are interconnected. The connecting assembly 2 includes a first side wall 21, a first bottom plate 22 and a first top plate 23, which can be integrally formed or combined by connection. The first bottom plate 22 and the first top plate 23 are arranged opposite to each other, and with the help of the deformation ability of the first side wall 21, the two can be close to or away from each other. A bayonet is provided at a position of the first side wall 21 close to the first bottom plate 22, and its function is to connect with the drainage board 4. A deflection assembly 3 is also installed on the first bottom plate 22, one end of the deflection assembly 3 is firmly connected to the bayonet, and the other end faces the first top plate 23. The drainage board 4 is detachably connected to the connecting assembly 2 through the deflection assembly 3. Under the action of the deflection assembly 3, the drainage board 4 can be selectively bent and move toward the direction of the first top plate 23, thereby driving the first top plate 23 to move away from the first bottom plate 22, thereby increasing the internal space of the connecting assembly 2 and effectively preventing silt blockage.

[0035] The deflection assembly 3 includes an extension sleeve 31 and a deflection sleeve 32 that are integrally formed or connected. The extension sleeve 31 is in a strip shape, passes through the bayonet, and is fixedly connected to the bayonet. The deflection sleeve 32 is located inside the connection assembly 2 and is interconnected with the extension sleeve 31. After the deflection sleeve 32 is bent, the end away from the extension sleeve 31 faces the first top plate 23. The extension sleeve 31 and the deflection sleeve 32 are both slidably connected to the drain plate 4. After one end of the drain plate 4 passes through the extension sleeve 31 and the deflection sleeve 32 in sequence, it can move toward the first top plate 23 and drive the first top plate 23 to move in a direction away from the first bottom plate 22.

[0036] Combination Figure 4 As shown, in order to prevent the first top plate 23 from collapsing due to insufficient hardness of the drain plate 4 during vacuuming, the deflection assembly 3 of the present invention is further provided with a flip frame 33. One end of the flip frame 33 is hinged to the end of the deflection sleeve 32 away from the extension sleeve 31. The drain plate 4 can selectively abut against the bottom of the flip frame 33, and by driving the other end of the flip frame 33 to tightly abut against the lower end of the first top plate 23, the deformation capacity of the first side wall 21 is overcome, so that the first top plate 23 moves in a direction away from the first bottom plate 22.

[0037] Specifically, the deflection sleeve 32 is a rectangular frame structure, including a second side plate 321, a second bottom plate 322 and a second top plate 323, which can be integrally formed or combined in a connected manner. The lower surface of the second top plate 323 is hinged to one end of the flip frame 33. The second bottom plate 322 is provided with an active notch 324, and the flip frame 33 can be embedded in the active notch 324 by its own gravity, and can also abut against the lower surface of the second top plate 323 under the action of the drainage board 4. That is to say, when the drain board 4 has not passed through the deflection sleeve 32, the flip frame 33 is embedded in the movable notch 324 and has no contact with the first top plate 23. At this time, the first top plate 23 and the second top plate 323 are close to each other and are in a folded and stored state; on the contrary, when the drain board 4 passes through the deflection sleeve 32, under the action of the drain board 4, the flip frame 33 flips upward until it abuts against the lower surface of the second top plate 323. At this time, the other end of the flip frame 33 protrudes from the second top plate 323, and at the same time drives the first top plate 23 to move in a direction away from the second top plate 323, so that the connecting assembly 2 forms a larger hollow structure and enters a working state.

[0038] Refer again Figure 2The deflection assembly 3 also includes a worm 34 rotatably connected to the extension sleeve 31. One end of the worm 34 passes through the extension sleeve 31 and is provided with a screwing notch. The screwing notch can be a straight-shaped, cross-shaped or Mi-shaped structure, and the worm 34 can be driven to rotate by a tool such as an electric screwdriver. The drainage board 4 consists of a core plate 41 and a filter layer 44 sleeved on the outside of the core plate 41. The core plate 41 is provided with transmission racks 42 on both sides along its width direction, and the transmission racks 42 and the worm 34 are meshed with each other for transmission. The filter layer 44 is wrapped on the outside of the core plate 41, which can effectively filter impurities in the soil, prevent the drainage channel from being blocked, and ensure the long-term stable operation of the drainage system. The filter layer 44 is embedded in the extension sleeve 31, which helps to improve the vacuum degree of the overall device. When in use, the drain board 4 is inserted into the extension sleeve 31, the transmission rack 42 is meshed with the worm 34, and the worm 34 is rotated by a tool to drive the drain board 4 to continue to pass through the extension sleeve 31 and the deflection sleeve 32, until the flip frame 33 lifts the first top plate 23, and the first top plate 23 stops moving, indicating that the drain board 4 is installed in place, and the worm 34 can be stopped from rotating. Through the cooperation of the worm 34 and the transmission rack 42, after the drain board 4 is installed in place, the drain board 4 can be limited, without the need for additional fixing structures such as screws, which effectively avoids the risk of the drain board 4 falling off due to loose screws during use.

[0039] The rotation of the worm 34 drives the drain plate 4 to slide until the flip frame 33 lifts up the first top plate 23, completing the installation of the drain plate 4. This design can accurately control the insertion depth of the drain plate 4 through the worm 34, avoiding the problem of inaccurate insertion depth due to reliance on the experience of construction personnel in the prior art, and effectively improving the construction quality. The structural design of the present invention reduces the number of parts, especially avoiding the situation where parts are easily lost due to the complex on-site environment during the construction process. Through integrated design and internal structure optimization, the risk of part loss is reduced and the overall performance of the device is ensured.

[0040] The transmission racks 42 arranged on both sides of the core plate 41 of the drain board 4 mesh with the worm 34 in the extension sleeve 31. This design not only realizes the precise conveying process of the drain board 4, but also limits the position of the drain board 4 through the cooperation between the worm 34 and the transmission rack 42, avoiding the risk of the drain board 4 falling off due to loosening in the traditional screw fixing method, and improving the reliability of the system.

[0041] It is understandable that the filter layer 44 and the extension sleeve 31 can also be sealed and connected by means of an adhesive tape, which is a prior art and will not be elaborated in detail here.

[0042] The extension sleeve 31 is also a rectangular frame structure, including a third side plate 311, a third bottom plate 312 and a third top plate 313, which can be integrally formed or combined by connection. The middle section of the core plate 41 is in a parallel cross shape, and is provided with a water delivery trough 43. A sliding protrusion is provided between the second bottom plate 322 and the second top plate 323, and / or between the third bottom plate 312 and the third top plate 313, and the sliding protrusion is slidably connected to the water delivery trough 43. The provision of the sliding protrusion can realize the sliding limit of the drain plate 4, and ensure the meshing effect of the transmission rack 42 and the worm 34.

[0043] The lower surface of the first top plate 23 is fixedly connected with a stop plate 5, and the other end of the flip frame 33 can selectively slide against the stop plate 5. A stop edge is provided on one side of the stop plate 5 close to the bayonet, and the stop edge is used to limit the flip frame 33 when the other end slides on the stop plate 5, so as to prevent the flip frame 33 from falling off from one side of the first top plate 23, and ensure the stability of the flip frame 33 when sliding against the first top plate 23.

[0044] The design of the flip frame 33 in the deflection assembly 3 can effectively support the first top plate 23, and prevent the first top plate 23 from collapsing due to insufficient hardness of the drainage plate 4. At the same time, the other end of the flip frame 33 ensures stable contact with the first top plate 23 through the limiting effect of the stop plate 5 and the stop edge, further enhancing the stability of the structure.

[0045] In a specific embodiment of the present invention, two bayonet holes are provided, which are respectively located on the left and right sides of the first side wall 21. The bayonet hole, the extension sleeve 31 and the deflection sleeve 32 are arranged in a one-to-one correspondence. A connecting rod 6 is fixedly connected between the two extension sleeves 31. This design can avoid changes in the spacing between the two extension sleeves 31 and improve the stability of the hollow structure of the connecting component 2. The front and rear sides of the first side wall 21 are both connected with a connector 7, and the connector 7 is connected to the vacuum tube 1. One end of the vacuum tube 1 is sleeved on the peripheral side of the connector 7 and is fastened by a cable tie 8 to ensure the firmness and sealing of the connection.

[0046] The present invention achieves a comprehensive improvement in spatial flexibility, connection stability, construction convenience, drainage efficiency and anti-blocking ability by optimizing the structural design of the connection assembly 2. At the same time, it reduces the number of parts and maintenance requirements, reduces engineering costs and risks, and can effectively meet the high-quality requirements of soft soil foundation treatment projects.

[0047] The soft foundation treatment drainage pipe and the matching drainage board of the present invention, when used, include the following steps:

[0048] 1) Site preparation and installation of drain board 4: First, the site is leveled on the soft soil foundation site to be treated, and then the plastic drain board 4 is installed. When installing, a length of the plastic drain board 4 should be reserved, and the reserved length is half of the spacing of the drain board 4, so as to facilitate the installation of the subsequent connection components 2.

[0049] 2) Installation of the connection assembly 2: The connection assembly 2 of the present invention is placed between two adjacent plastic drain boards 4. The vacuum tube 1 is first arranged at the connection head 7 of the first side wall 21 of the connection assembly 2. The outer diameter of the connection head 7 is slightly smaller than the inner diameter of the vacuum tube 1. The vacuum tube 1 can be directly mounted on the connection head 7 and fastened to the periphery of the connection head 7 with a cable tie 8 to form a longitudinal whole, thereby completing the connection and fixation between the vacuum tube 1 and the connection assembly 2.

[0050] 3) Connection and fixation of the drain board 4: Clean the surface of the reserved section of the drain board 4, especially the fracture, which must not contain lumps of silt to avoid clogging. Then insert one end of the drain board 4 into the extension sleeve 3 in turn, and use a tool (such as an electric screwdriver) to rotate the worm 34 in the extension sleeve 31 by screwing the notch, so that the transmission rack 42 of the drain board 4 is meshed with the worm 34 for transmission, and further push the drain board 4 through the extension sleeve 31 and the deflection sleeve 32 until the flip frame 33 lifts the first top plate 23 and the drain board 4 is installed in place. At this time, the cooperation between the worm 34 and the transmission rack 42 can limit the position of the drain board 4, and no additional screws are required to fix it.

[0051] 4) Repeat this process: connect all drainage boards 4 in the soft soil foundation site through the connection assembly 2, and install the corresponding vacuum tubes 1, so as to complete the overall installation of the horizontal drainage channel.

[0052] 5) Construction and operation of vacuum preloading system: Lay two layers of vacuum membrane above the horizontal drainage channel, connect the vacuum tube 1 to the vacuum equipment, and then start vacuum preloading drainage treatment for the soft soil foundation site.

[0053] Through the above steps, the present invention can achieve a quick and stable connection between the drainage board 4 and the vacuum tube 1, while avoiding the problems existing in the traditional connection method, thereby improving the construction efficiency and engineering quality.

[0054] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0055] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. Soft foundation treatment drainage pipe and matching drainage board, characterized in that: include: The drainage pipe comprises a connected vacuum tube (1) and a connecting assembly (2); the connecting assembly (2) comprises a first side wall (21), a first bottom plate (22) integrally formed with or connected to the first side wall (21), and a first top plate (23); the first bottom plate (22) and the first top plate (23) are arranged opposite to each other and can approach each other by virtue of the deformation ability of the first side wall (21); a bayonet is arranged on the first side wall (21) near the first bottom plate (22); and a deflection assembly (3) slidably connected to the drainage plate (4) is arranged on the first bottom plate (22); one end of the deflection assembly (3) is fixedly connected to the bayonet, and the other end faces the first top plate (23); as well as The drainage plate (4) is detachably connected to the deflection assembly (3), and selectively drives the first top plate (23) to move in a direction away from the first bottom plate (22) after being bent by the deflection assembly (3).

2. The soft foundation treatment drainage pipe and the matching drainage board according to claim 1 are characterized in that: The deflection assembly (3) comprises: an extension sleeve (31) in a strip shape and fixedly connected to the bayonet; and A deflection sleeve (32) is arranged inside the connection assembly (2) and is connected to the extension sleeve (31). After the deflection sleeve (32) is bent, its end away from the extension sleeve (31) is arranged toward the first top plate (23). The extension sleeve (31) and the deflection sleeve (32) are respectively slidably connected to the drainage plate (4).

3. The soft foundation treatment drainage pipe and the matching drainage board according to claim 2 are characterized in that: The deflection assembly (3) further comprises: one end of the deflection sleeve (32) away from the extension sleeve (31) is hingedly connected to one end of a flip frame (33); the drainage plate (4) selectively abuts against the bottom of the flip frame (33), driving the other end of the flip frame (33) to abut against the lower end of the first top plate (23), and overcome the deformation ability of the first side wall (21) to move it away from the first bottom plate (22).

4. The soft foundation treatment drainage pipe and the matching drainage board according to claim 3 are characterized in that: The deflection sleeve (32) is a rectangular frame structure, comprising a second side plate (321), a second bottom plate (322) and a second top plate (323) integrally formed with or connected to the second side plate (321); the lower surface of the second top plate (323) is hinged to one end of the flip frame (33); the second bottom plate (322) is provided with a movable notch (324) adapted to the flip frame (33); the flip frame (33) can be embedded in the movable notch (324) by its own gravity, or abut against the lower surface of the second top plate (323) under the action of the drainage plate (4).

5. The soft foundation treatment drainage pipe and the matching drainage board according to claim 4 are characterized in that: The deflection assembly (3) further comprises a worm (34) rotatably connected within the extension sleeve (31); The drainage plate (4) comprises a core plate (41) and a filter layer (44) sleeved on the outside of the core plate (41); the core plate (41) is provided with transmission racks (42) on both sides along its width direction; at least one of the transmission racks (42) is meshed with at least one of the worm gears (34) for transmission; and the filter layer (44) is embedded in the extension sleeve (31).

6. The soft foundation treatment drainage pipe and the matching drainage board according to claim 5, characterized in that: The extension sleeve (31) is also a rectangular frame structure, comprising a third side plate (311) and a third bottom plate (312) and a third top plate (313) integrally formed or connected with the third side plate (311); The middle section of the core plate (41) is in the shape of a parallel cross and is provided with a water delivery trough (43). A sliding protrusion is provided between the second bottom plate (322) and the second top plate (323), and / or between the third bottom plate (312) and the third top plate (313), and the sliding protrusion is slidably connected to the water delivery trough (43).

7. The soft foundation treatment drainage pipe and the matching drainage board according to claim 6, characterized in that: A stop plate (5) is fixedly connected to the lower surface of the first top plate (23), and the other end of the flip plate selectively slides against the stop plate (5). A stop edge is provided on the side of the stop plate (5) close to the bayonet, and the stop edge is used to limit the other end of the flip plate when it slides on the stop plate (5).

8. The soft foundation treatment drainage pipe and the matching drainage board according to claim 7, characterized in that: The bayonet is provided with two, and the two bayonet are located on the left and right sides of the first side wall (21); the bayonet, the extension sleeve (31) and the deflection sleeve (32) are provided in a one-to-one correspondence; and a connecting rod (6) is fixedly connected between the two extension sleeves (31).

9. The soft foundation treatment drainage pipe and the matching drainage board according to claim 8, characterized in that: The front and rear sides of the first side wall (21) are both connected to connectors (7), and the connectors (7) are connected to the vacuum tube (1).

10. The soft foundation treatment drainage pipe and the matching drainage board according to claim 9, characterized in that: One end of the vacuum tube (1) is sleeved on the peripheral side of the connector (7) and is fastened by a cable tie (8) sleeved on the peripheral side.

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