Underwater geotextile laying auxiliary device

Abstract

The utility model relates to the technical field of embankment protection, and provides an underwater geotechnical cloth laying auxiliary device which comprises at least two guide rails, one end of each guide rail is used for extending to the shore, and the other end of each guide rail is used for extending to a preset installation starting point of geotechnical cloth. The reels are detachably connected between every two adjacent guide rails, the reels can slide or roll along the guide rails, and the reels are used for winding geotechnical cloth; the stopping structure is arranged at the end, used for extending to the preset installation starting point of the geotechnical cloth, of the guide rail, the stopping structure is detachably connected or movably connected to the guide rail, and the stopping structure is used for stopping the reel from sliding or rolling along the guide rail. According to the utility model, the defects that the construction efficiency, the construction speed and the construction quality are low as the underwater geotechnical cloth is positioned and mounted by manual underwater operation in the prior art, and the underwater geotechnical cloth is easily interfered by environmental factors of a local water area can be overcome.

Description

Technical Field

[0001] This utility model relates to the field of bank protection technology, and in particular to an underwater geotextile laying auxiliary device. Background Technology

[0002] In the field of embankment protection technology, in order to prevent soil erosion on the water-facing side of the embankment, it is often necessary to lay geotextiles underwater on the water-facing side. The current mainstream practice is to use divers to manually lay lines, position, and lay geotextiles underwater. However, manual underwater laying and positioning are inefficient, which slows down the construction efficiency of the entire geotextile laying operation, resulting in an excessively long construction period. On the other hand, it is also easy to cause inaccurate positioning of geotextiles, which will negatively affect the construction quality and effectiveness. At the same time, manual underwater operations are also easily affected by local aquatic environmental factors such as water flow, water pressure, tides, and temperature, and are particularly unsuitable for embankment protection in unprotected sea areas with large waves and long period waves. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies, which rely on manual underwater operations for positioning and installing underwater geotextiles, resulting in low construction efficiency, speed, and quality, and are also susceptible to interference from local water environment factors. This invention provides an auxiliary device for laying underwater geotextiles.

[0004] In a first aspect, this utility model provides an underwater geotextile laying auxiliary device, comprising:

[0005] Guide rails, one end of which extends to the shore and the other end of which extends to the predetermined installation starting point of the geotextile, and the number of guide rails is at least two.

[0006] The reel is detachably connected between two adjacent guide rails. The reel can slide or roll along the guide rails. The reel is used to wind up geotextile.

[0007] A stop structure is provided at one end of the guide rail for extending to the predetermined installation starting point of the geotextile. The stop structure is detachably or movably connected to the guide rail and is used to prevent the roll from sliding or rolling along the guide rail.

[0008] One end of the guide rail is used to extend to the shore, and the other end is used to extend to the predetermined installation starting point of the geotextile. That is, the guide rail needs to have sufficient length and height difference so that when it is installed on the embankment, one end can be exposed above the water and reach the shore, and the other end can reach the predetermined installation starting point of the underwater geotextile.

[0009] The reel is detachably connected to the guide rail, meaning it can be both attached to and removed from the guide rail. This can be achieved, but is not limited to: having open ends or no limiting structures at either end of the guide rail, allowing the reel to enter or leave the guide rail from either end; or having sliders or rollers installed in the guide rail, with the reel connected to the sliders or rollers via detachable connections such as bolts, tenons, or snap-fits.

[0010] The stop structure is used to prevent the reel from sliding or rolling along the guide rail. For example, the stop structure can be detachably connected to the guide rail. When the stop structure is installed on the guide rail, it can abut against the reel, thereby preventing the reel from continuing to move towards the water and detaching from the guide rail. When the stop structure is removed, the reel can continue to move towards the water and detach from the guide rail. Alternatively, the stop structure can be movably connected to the guide rail, giving it a first position and a second position. When the stop structure is moved to the first position, it can abut against the reel, thereby preventing the reel from continuing to move towards the water and detaching from the guide rail. When the stop structure is moved to the second position, it cannot abut against the reel, allowing the reel to continue to move towards the water and detach from the guide rail. The movable connection includes, but is not limited to, swing connection, rotational connection, and sliding connection.

[0011] When laying geotextile, the guide rail is connected to the revetment, with one end of the guide rail above the water surface and reaching the shore, and the other end extending underwater. Since the shape and movement relationship of the guide rail and the reel are clear, as long as the portion of the guide rail above the water surface is in the correct position, the portion below the water surface will also point to the correct position, i.e., the predetermined installation starting point of the geotextile. At this point, the geotextile is wound onto the reel and slid or rolled underwater along the guide rail. The geotextile and the reel will move along the guide rail until they are stopped by a stop structure. This process eliminates the speed of movement of the geotextile and the reel, preventing the landing point and posture of the geotextile and the reel from being affected by high-speed movement and the resulting bouncing. Then, the stop structure is released from the reel, allowing the geotextile and the reel to detach from the guide rail and slowly fall to the predetermined installation starting point, after which the geotextile laying operation can begin.

[0012] As can be seen from the above, as long as the part of the guide rail above the water surface is in the correct position, the part of the guide rail below the water surface will also point to the predetermined installation starting point of the geotextile, thus ensuring the accurate positioning of the geotextile. Therefore, this solution does not require manual underwater operations for laying out and positioning the geotextile as in existing technologies, resulting in higher construction efficiency, speed, accuracy, and quality, and is not affected by local water environment factors. Furthermore, the stop structure can eliminate the influence of high-speed movement and the resulting bounce on the landing point and attitude of the geotextile and the roll, thereby further ensuring the positioning accuracy of this solution.

[0013] Preferably, the guide rail includes a ramp section and a horizontal section, with the horizontal section located at at least one end of the ramp section, and the horizontal section is used to extend to a predetermined installation starting point on the shore or geotextile.

[0014] The horizontal section is used to extend to the shore or the predetermined installation starting point of the geotextile. For example, if the horizontal section is set on the side of the slope section closer to the shore, the horizontal section is used to extend to the shore; if the horizontal section is set on the side of the slope section away from the shore, the horizontal section is used to extend to the predetermined installation starting point of the geotextile.

[0015] This solution adds a horizontal section to the guide rail. If the horizontal section is set at the end of the slope section closer to the shore, workers can place the reel in the horizontal section to prevent it from moving on its own, thus making it convenient for workers to prepare the reel on the shore. If the horizontal section is set at the end of the slope section farther from the shore, the horizontal section helps to consume the movement speed of the reel, thereby reducing the impact between the reel and the stop structure.

[0016] Preferably, the other end of the guide rail extends to the side of the geotextile that is away from the shore where the geotextile is to be installed.

[0017] In this scheme, after the guide rail is installed, its underwater end extends away from the shore until it exceeds the predetermined installation starting point of the geotextile. The distance beyond the predetermined installation starting point depends on the actual needs. For example, it can only exceed the predetermined installation starting point by a small distance to ensure that the overlap length of the geotextile at the predetermined installation starting point meets the design requirements; or it can exceed the predetermined installation starting point until it approaches or reaches the predetermined installation endpoint, so that the guide rail can play a guiding role throughout the entire installation area of ​​the geotextile.

[0018] Preferably, it also includes a connecting column foot, one end of which is connected to the guide rail, and the other end of which is used to connect to the cushion stones of the embankment.

[0019] This solution recommends using connecting column feet to connect the guide rail to the foundation stones of the revetment. Compared to connecting to the underwater sand surface or horizontal drainage layer, this solution ensures a more stable connection between the guide rail and the revetment, thereby ensuring the accurate positioning of the guide rail and preventing settlement or slippage due to environmental factors such as wave interference.

[0020] Preferably, the number of connecting pins is greater than one, and the connecting pins are spaced apart along the length of the guide rail.

[0021] This solution enables a more uniform force distribution between the guide rail and the embankment, thereby further ensuring the stability and reliability of the connection.

[0022] Preferably, the guide rail includes an upper guide rail and a lower guide rail spaced apart along the height direction, and the spacing between the upper and lower guide rails matches the diameter of the reel.

[0023] This solution uses an upper and lower guide rail to clamp the reel, allowing the reel to roll directly in the gap between the upper and lower guide rails. The structure is simple and the operation is reliable. The reel can slide directly into the guide rail from both ends (in the gap between the upper and lower guide rails) or directly detach from the guide rail from both ends. This makes it easier for operators to place the reel into the guide rail on land and, after confirming the accurate position of the reel, detach it from the guide rail underwater.

[0024] Preferably, limiting steps are provided at both ends of the scroll, and the radial dimension of the limiting steps along the scroll is greater than the distance between the upper guide rail and the lower guide rail.

[0025] This solution uses a limiting step to restrict the movement of the roll relative to the guide rail along the axial direction of the roll, thereby avoiding squeezing between the wound geotextile and the guide rail, which could lead to damage to the geotextile.

[0026] Preferably, the guide rail comprises a steel component.

[0027] Structural steel includes, but is not limited to, channel steel, H-beams, and I-beams.

[0028] This solution recommends using profiles to manufacture the guide rails, which can reduce the manufacturing difficulty and cost of the guide rails, and ensure that the guide rails have sufficient strength.

[0029] Preferably, the stop structure includes a limiting pin, which is detachably connected to the guide rail.

[0030] This solution recommends one specific type of stop structure.

[0031] Preferably, the top surface of the guide rail is provided with a limit blind hole, and the limit pin is detachably connected to the limit blind hole.

[0032] The top surface of the guide rail is provided with a limiting blind hole, that is, one end of the limiting blind hole penetrates the top surface of the guide rail, while the other end does not penetrate the guide rail, so that the limiting pin can be inserted into the limiting blind hole from the top of the guide rail, but will not fall off from the bottom of the guide rail.

[0033] This solution recommends a specific installation method for the limit pin, which allows the limit pin to automatically stay in the limit blind hole under the action of gravity without the need for other locking components. The structure is simple and the operation is reliable, making it easier for divers to install and remove the limit pin.

[0034] Compared with existing technologies, the advantages of this utility model are as follows:

[0035] 1. This utility model provides an underwater geotextile laying auxiliary device, which achieves geotextile positioning through guide rails and rollers. Since the shape and movement relationship of the guide rails and rollers are clear, as long as the part of the guide rail above the water surface is in the correct position, the part of the guide rail below the water surface will also point to the predetermined installation starting point of the geotextile, thus ensuring accurate positioning of the geotextile. Therefore, this solution does not require manual underwater operations for geotextile laying and positioning as in existing technologies, resulting in higher construction efficiency, construction speed, construction accuracy, and construction quality, and is not affected by local water environment factors. The stop structure can eliminate the movement speed of the rollers and geotextile, preventing the landing point and posture of the geotextile and rollers from being affected by high-speed movement and the jumping caused by high-speed movement, thereby further ensuring the positioning accuracy of this solution. Attached Figure Description

[0036] Figure 1 This is a three-dimensional structural diagram of an underwater geotextile laying auxiliary device according to this utility model. Figure 1 ;

[0037] Figure 2 This is a three-dimensional structural diagram of an underwater geotextile laying auxiliary device according to this utility model. Figure 2 ;

[0038] Figure 3 This is a top view schematic diagram of an underwater geotextile laying auxiliary device according to the present invention;

[0039] Figure 4 This is a side view of the structure of an underwater geotextile laying auxiliary device according to the present invention;

[0040] Figure 5 This is a front sectional view of the underwater geotextile laying auxiliary device of this utility model at the roll.

[0041] Figure 6 This is a front sectional view of the limiting pin structure of an underwater geotextile laying auxiliary device according to this utility model.

[0042] Icons: 1-Guide rail; 11-Upper guide rail; 12-Lower guide rail; 13-Connecting column base; 14-Horizontal section; 15-Slope section; 2-Roller; 21-Limiting step; 3-Geotextile; 4-Onshore; 5-Dike; 6-Limiting pin. Detailed Implementation

[0043] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0044] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of the present invention is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the present invention or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a particular device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.

[0045] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but that it can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0046] Furthermore, the use of terms such as "first," "second," "third," etc. in terminology is merely for distinguishing identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0047] Furthermore, in the description of the embodiments of the present invention, "several", "more than", and "a number of" represent at least two. The number can be any number, such as 2, 3, 4, 5, 6, 7, 8, or 9, and can even exceed nine.

[0048] Furthermore, in the description of the technical solution of this invention, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0049] Example 1

[0050] like Figures 1 to 6 As shown, an underwater geotextile laying auxiliary device includes a guide rail 1, a roller 2, and a stop structure. One end of the guide rail 1 extends to the shore 4, and the other end extends to the predetermined installation starting point of the geotextile 3. Both ends of the guide rail 1 are open, and there are at least two guide rails 1 arranged parallel to each other. The roller 2 is detachably connected between two adjacent guide rails 1 and can slide or roll along the guide rail 1. The roller 2 is used to wind the geotextile 3. The stop structure is provided at the end of the guide rail 1 that extends to the predetermined installation starting point of the geotextile 3. The stop structure is detachably or movably connected to the guide rail 1 and is used to prevent the roller 2 from sliding or rolling along the guide rail 1.

[0051] In an optional embodiment, the guide rail 1 includes a ramp section 15 and a horizontal section 14. The horizontal section 14 is disposed at at least one end of the ramp section 15. The angle between the horizontal section 14 and the ramp section 15 matches the inclination angle of the embankment 5. The horizontal section 14 is used to extend to a predetermined installation starting point on the bank 4 or the geotextile 3. Specifically, as shown... Figure 4 As shown, in this embodiment, horizontal sections 14 are provided in both sections of the slope section 15. The horizontal section 14 closer to the shore 4 is conducive to the workers preparing the roller 2 and geotextile 3 on the shore 4, while the horizontal section 14 farther from the shore 4 is conducive to the roller 2 and geotextile 3 eliminating some of the horizontal velocity after sliding down the slope section 15, thereby mitigating the impact between the roller 2 and the stop structure.

[0052] In an optional embodiment, the other end of the guide rail 1 extends to the side of the geotextile 3 away from the predetermined installation starting point on the shore 4. For example... Figure 3 As shown in the diagram, the area enclosed by the dashed line and represented by the underlined A is the intended installation area. Figure 3 The upper boundary is the predetermined installation starting point of the geotextile 3; it can be seen that the lower end of the guide rail 1 in this embodiment exceeds the predetermined installation starting point.

[0053] In an optional embodiment, a connecting column base 13 is also included, one end of which is connected to the guide rail 1, and the other end of which is used to connect to the cushion stones of the revetment 5. Specifically, as shown... Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, connecting column feet 13 are only provided in the area corresponding to the cushion stones of the guide rail 1 and the embankment 5. For other areas, such as the area corresponding to the underwater sand surface or the flat drainage layer, and the area less than or equal to 10m from the end of the guide rail 1, connecting column feet 13 are not provided. This ensures that all the stress points of the guide rail 1 are located on the cushion stones of the sloped area, thus ensuring the stable support of the guide rail 1.

[0054] In an optional embodiment, the number of connecting pins 13 is greater than one, and the connecting pins 13 are spaced apart along the length of the guide rail 1. For example... Figure 4 As shown, in this embodiment, at least three connecting pins 13 are provided below a single guide rail 1, and the spacing between the connecting pins 13 can be 5m.

[0055] In an optional embodiment, the guide rail 1 includes an upper guide rail 11 and a lower guide rail 12 spaced apart along the height direction, the distance between the upper guide rail 11 and the lower guide rail 12 matching the diameter of the scroll 2. For example, if the diameter of the scroll 2 is 100mm, the distance between the upper guide rail 11 and the lower guide rail 12 can be slightly greater than 100mm, such as 101mm or 102mm, so that the scroll 2 can roll between the upper guide rail 11 and the lower guide rail 12.

[0056] In an optional embodiment, limiting steps 21 are provided at both ends of the scroll 2, and the radial dimension of the limiting steps 21 along the scroll 2 is greater than the distance between the upper guide rail 11 and the lower guide rail 12. For example... Figure 5 and Figure 6 As shown, the limiting steps 21 provided at both ends of the roller 2 in this embodiment can prevent the roller 2 from moving along its axis, thereby avoiding the situation where the geotextile 3 and the guide rail 1 are squeezed against each other.

[0057] In an optional embodiment, the guide rail 1 comprises a steel component. Specifically, in this embodiment, the upper guide rail 11, the lower guide rail 12, and the connecting column 13 are all welded from channel steel.

[0058] In an optional embodiment, the stop structure includes a limiting pin 6, which is detachably connected to the guide rail 1.

[0059] In an optional embodiment, the top surface of the guide rail 1 is provided with a limit blind hole, and the limit pin 6 is detachably connected to the limit blind hole. For example... Figure 6 As shown, in this embodiment, the limiting pin 6 can be inserted into the guide rail 1 from above, but will not fall off from below.

[0060] When laying geotextile 3, the construction can be carried out according to the following steps:

[0061] S1. Connect the connecting column 13 of the guide rail 1 to the foundation stones of the revetment 5, so that one end of the guide rail 1 protrudes above the water surface and reaches the shore 4, while the other end extends underwater; confirm that the part of the guide rail 1 above the water surface is in the correct position; then wind the geotextile 3 onto the roller 2 and insert it into the guide rail 1 from one end, as shown. Figure 1 As shown;

[0062] S2. Push scroll 2 away from the shore 4, that is, along... Figure 3 Push downwards; pushing can be done manually, or with the assistance of excavators and cranes; geotextile 3 and roll 2 will move along guide rail 1 until they are blocked by limit pin 6;

[0063] S3. Dispatch divers to confirm whether the position and posture of the roll 2 are correct, that is, confirm whether the two ends of the roll 2 are respectively abutting the limit pins 6 on both sides, and whether the axis of the roll 2 is horizontal; if so, remove the limit pins 6, so that the geotextile 3 and the roll 2 are separated from the guide rail 1 and slowly fall to the predetermined installation starting point.

[0064] S4. Lay out geotextile 3.

[0065] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An underwater geotextile laying auxiliary device, characterized in that, Include: Guide rail (1), one end of which is used to extend to the shore (4), and the other end of which is used to extend to the predetermined installation starting point of the geotextile (3), and the number of guide rails (1) is at least two; A reel (2) is detachably connected between two adjacent guide rails (1). The reel (2) can slide or roll along the guide rails (1). The reel (2) is used to wind the geotextile (3). A stop structure is provided at one end of the guide rail (1) for extending to the predetermined installation starting point of the geotextile (3). The stop structure is detachably or movably connected to the guide rail (1) and is used to prevent the roll (2) from sliding or rolling along the guide rail (1).

2. The underwater geotextile laying auxiliary device according to claim 1, characterized in that, The guide rail (1) includes a ramp section (15) and a horizontal section (14), the horizontal section (14) being disposed at at least one end of the ramp section (15), the horizontal section (14) being used to extend to a predetermined installation starting point of the shore (4) or the geotextile (3).

3. The underwater geotextile laying auxiliary device according to claim 1, characterized in that, The other end of the guide rail (1) extends to the side of the geotextile (3) away from the predetermined installation starting point on the shore (4).

4. The underwater geotextile laying auxiliary device according to claim 1, characterized in that, It also includes a connecting column base (13), one end of which is connected to the guide rail (1), and the other end of which is used to connect to the cushion stones of the embankment (5).

5. The underwater geotextile laying auxiliary device according to claim 4, characterized in that, The number of connecting pins (13) is greater than one, and the connecting pins (13) are spaced apart along the length direction of the guide rail (1).

6. An underwater geotextile laying auxiliary device according to any one of claims 1 to 5, characterized in that, The guide rail (1) includes an upper guide rail (11) and a lower guide rail (12) spaced apart along the height direction, and the distance between the upper guide rail (11) and the lower guide rail (12) matches the diameter of the scroll (2).

7. The underwater geotextile laying auxiliary device according to claim 6, characterized in that, Limiting steps (21) are provided at both ends of the scroll (2), and the radial dimension of the limiting steps (21) along the scroll (2) is greater than the distance between the upper guide rail (11) and the lower guide rail (12).

8. An underwater geotextile laying auxiliary device according to any one of claims 1 to 5, characterized in that, The guide rail (1) comprises steel components.

9. An underwater geotextile laying auxiliary device according to any one of claims 1 to 5, characterized in that, The stop structure includes a limiting pin (6), which is detachably connected to the guide rail (1).

10. The underwater geotextile laying auxiliary device according to claim 9, characterized in that, The top surface of the guide rail (1) is provided with a limit blind hole, and the limit pin (6) is detachably connected to the limit blind hole.

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