An erosion protection device for an offshore pile foundation

Abstract

The utility model relates to the technical field of ocean foundation protection, specifically relates to a scour protection device of ocean pile foundation, including cylinder and protection subassembly, and protection subassembly includes protection cylinder, buffer component, connecting rod, deflector, ring plate and fixed anchor, the protection cylinder is set in the outside of cylinder before installing cylinder, when installing cylinder on the bottom of sea placement surface, the fixed anchor on ring plate is buried in placement surface simultaneously, the protection cylinder is connected with ring plate through connecting rod and is strengthened fixed, and the connecting rod circular array is 6, and the section between every connecting rod and protection cylinder and ring plate forms triangle, makes the device have stability, and the deflector is used for water flow guiding, avoids that water flow directly washes cylinder and installs placement surface, and connecting rod, ring plate and protection cylinder adopt integrated pouring forming process.

Description

Technical Field

[0001] This utility model relates to the field of marine foundation protection technology, and in particular to a scour protection device for marine pile foundations. Background Technology

[0002] In marine engineering, pile foundations are a commonly used foundation type, widely applied to offshore platforms, offshore wind power facilities, and more. However, the marine environment is complex and changeable; the dynamic forces of water currents and waves can erode the soil surrounding the pile foundation. Over time, the soil around the pile foundation is continuously eroded away, forming scour pits. This reduces the depth of the pile foundation in the soil, lowers the pile's side friction, and consequently affects the stability and bearing capacity of the pile foundation. In severe cases, it can even lead to engineering accidents, threatening the safe operation of marine engineering structures.

[0003] A scour prevention device for pile foundations of marine engineering structures is available. It includes vertical slide rails, horizontal slide rails, and a grid plate. Multiple vertical slide rails form a cylindrical body, with horizontal slide rails arranged radially around the cylindrical body. The grid plate, located above the horizontal slide rails, surrounds the cylindrical body in a conical shape, forming a scour prevention body. The larger end of the conical scour prevention body faces downwards. The cylindrical body connects to a monopile, the lower end of which extends into the seabed. The horizontal slide rails contact the monopile foundation. The height of the conical scour prevention body from the upper and lower ends of the cylindrical body is adjustable, as is the taper of the conical scour prevention body. This device effectively consumes and reduces the kinetic energy of the water, weakens or disperses the intensity of horseshoe vortices and wake vortices around the monopile, allows some incoming sand to pass directly through the grid plate, promotes sedimentation and siltation behind the grid plate, reduces toe scouring in front of and behind the grid plate, and effectively achieves a slow-flow, silt-promoting scour prevention effect. It features a short construction period, low cost, minimal risk of damaging the monopile surface, and simple and convenient operation.

[0004] However, the aforementioned utility model has a complex device structure with many connection structures, and long-term underwater use can easily lead to loosening of parts, affecting the use of the device. Summary of the Invention

[0005] The purpose of this utility model is to provide a scour protection device for marine pile foundations, which aims to solve the problem that existing devices have complex structures and many connection structures, and that long-term underwater use can easily lead to loosening of parts, affecting the use of the device.

[0006] To achieve the above objectives, this utility model provides a scour protection device for marine pile foundations, including a column and a protection component. The protection component includes a protection cylinder, a buffer component, a connecting rod, a guide plate, an annular plate, and a fixed anchor.

[0007] The protective cylinder is slidably connected to the column and located outside the column. The annular plate is fixedly connected to the protective cylinder and located on one side of the protective cylinder. The buffer member is connected to the protective cylinder and located outside the protective cylinder. The connecting rod is fixedly connected to the annular plate and the protective cylinder, and located between the annular plate and the protective cylinder. The fixing anchor is slidably connected to the annular plate and located on one side of the annular plate. The guide plate is fixedly connected to the connecting rod and located outside the connecting rod.

[0008] The buffer component includes a spring and a buffer pad. The spring is fixedly connected to the protective cylinder and is located outside the protective cylinder. The buffer pad is fixedly connected to the spring and is located on one side of the spring.

[0009] The protective component further includes a reinforcing rib and a mounting hole. The mounting hole is disposed on the connecting rod, and the reinforcing rib is slidably connected to the mounting hole and located inside the mounting hole.

[0010] The protective assembly further includes a ring, a mounting plate, and a reinforcing pile. The ring is slidably connected to the column and located on the outside of the column. The mounting plate is fixedly connected to the ring and located on the outside of the ring. The reinforcing pile is fixedly connected to the mounting plate and located on one side of the mounting plate.

[0011] The protective assembly further includes a connecting cable and a connecting plate. The connecting cable is fixedly connected to the ring and located on one side of the ring. The connecting plate is fixedly connected to the connecting cable and located on one side of the connecting cable.

[0012] This utility model discloses a scour protection device for marine pile foundations. Before installing the column, a protective sleeve is fitted onto the outside of the column. When the column is installed on the seabed, the fixing anchor on the annular plate is simultaneously embedded in the placement surface. The protective sleeve and the annular plate are connected and reinforced by connecting rods. There are six connecting rods in a circular array, and the cross-section between each connecting rod, the protective sleeve, and the annular plate forms a triangle, which makes the device stable. The guide plate is used to guide the water flow and prevent the water flow from directly scouring the column and the installation surface. The connecting rods, the annular plate, and the protective sleeve are integrally cast, which solves the problem of existing devices having complex structures and many connection structures, and the easy loosening of parts during long-term underwater use. The buffer component prevents the column from being violently impacted by sand, gravel, fish, and shrimp during scour, which affects the use of the device. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a structural diagram of a scour protection device for marine pile foundations according to this utility model.

[0015] Figure 2 This is a cross-sectional schematic diagram of a scour protection device for marine pile foundations according to this utility model.

[0016] 101-Column, 102-Protective component, 103-Protective cylinder, 104-Buffer component, 105-Connecting rod, 106-Guide plate, 107-Annular plate, 108-Fixed anchor, 109-Spring, 110-Buffer pad, 111-Reinforcing rib, 112-Mounting hole, 113-Ring, 114-Horizontal bar, 115-Reinforcing pile, 116-Connecting cable, 117-Connecting plate. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] First Embodiment

[0019] Please see Figures 1-2 , Figure 1 This is a structural diagram of a scour protection device for marine pile foundations according to this utility model. Figure 2 This is a cross-sectional schematic diagram of a scour protection device for marine pile foundations according to this utility model.

[0020] This utility model provides a scour protection device for marine pile foundations, comprising a column 101 and a protective component 102. The protective component 102 includes a protective cylinder 103, a buffer component 104, a connecting rod 105, a guide plate 106, an annular plate 107, a fixed anchor 108, a spring 109, a buffer pad 110, a reinforcing rib 111, a mounting hole 112, a ring 113, a mounting plate 114, a reinforcing pile 115, a connecting cable 116, and a connecting plate 117. This solution solves the problems of existing devices having complex structures and numerous connections, which can easily lead to loosening of components during long-term underwater use. The buffer component 104 prevents the column 101 from being violently impacted by sand, gravel, fish, and shrimp during scour, thus affecting the device's usability.

[0021] In this embodiment, the protective cylinder 103 is slidably connected to the column 101 and located outside the column 101; the annular plate 107 is fixedly connected to the protective cylinder 103 and located on one side of the protective cylinder 103; the buffer member 104 is connected to the protective cylinder 103 and located outside the protective cylinder 103; the connecting rod 105 is fixedly connected to the annular plate 107 and the protective cylinder 103, and located between the annular plate 107 and the protective cylinder 103; the fixing anchor 108 is slidably connected to the annular plate 107 and located on one side of the annular plate 107; and the guide plate 106 is fixedly connected to the connecting rod 105 and located outside the connecting rod 105. Before installing the column 101, the protective cylinder 103 is fitted onto the outside of the column 101. When the column 101 is installed on the seabed surface, the fixing anchor 108 on the annular plate 107 is simultaneously embedded in the surface. The protective cylinder 103 and the annular plate 107 are connected and reinforced by the connecting rods 105. There are six connecting rods 105 in a circular array. The cross-section between each connecting rod 105, the protective cylinder 103, and the annular plate 107 forms a triangle, which makes the device stable. The guide plate 106 is used to guide the water flow and prevent the water flow from directly scouring the column 101 and the installation surface. The connecting rods 105, the annular plate 107, and the protective cylinder 103 are made by an integrated casting process, which solves the problem that the existing device has a complex structure and many connection structures, and the parts are prone to loosening after long-term underwater use. The buffer component 104 prevents the column 101 from being violently impacted by sand, gravel, fish, and shrimp during scouring, which affects the use of the device.

[0022] The buffer component 104 includes a spring 109 and a buffer pad 110. The spring 109 is fixedly connected to the protective cylinder 103 and is located on the outside of the protective cylinder 103. The buffer pad 110 is fixedly connected to the spring 109 and is located on one side of the spring 109. The buffer pad 110 is made of elastic material. The buffer pad 110 and the spring 109 buffer and deflect the impact, extending the service life of the device.

[0023] Secondly, the protective component 102 also includes a reinforcing rib 111 and a mounting hole 112. The mounting hole 112 is disposed on the connecting rod 105. The reinforcing rib 111 is slidably connected to the mounting hole 112 and is located inside the mounting hole 112. The reinforcing rib 111 is installed through the mounting hole 112. The reinforcing rib 111 forms a ring and connects the six connecting rods 105 in series, thereby increasing the stability of the device.

[0024] Furthermore, the protective assembly 102 also includes a ring 113, a crossbar 114, and a reinforcing pile 115. The ring 113 is slidably connected to the column 101 and located on the outside of the column 101. The crossbar 114 is fixedly connected to the ring 113 and located on the outside of the ring 113. The reinforcing pile 115 is fixedly connected to the crossbar 114 and located on one side of the crossbar 114. The ring 113 and the crossbar 114 add auxiliary piles to the column 101, and the reinforcing pile 115 is installed on the placement surface together with the column 101, thereby improving the stability of the device.

[0025] Finally, the protective assembly 102 also includes a connecting cable 116 and a connecting plate 117. The connecting cable 116 is fixedly connected to the ring 113 and is located on one side of the ring 113. The connecting plate 117 is fixedly connected to the connecting cable 116 and is located on one side of the connecting cable 116. The connecting plate 117 is provided with a connecting hole to connect two connecting plates 117, thereby connecting the column 101 with the column 101 through the connecting cable 116, further improving the installation stability of the column 101.

[0026] When using the scour protection device for marine pile foundations according to this utility model, before installing the column 101, the protective cylinder 103 is fitted onto the outside of the column 101. When the column 101 is installed on the seabed, the fixing anchor 108 on the annular plate 107 is simultaneously embedded in the placement surface. The protective cylinder 103 and the annular plate 107 are connected and reinforced by the connecting rod 105. There are 6 connecting rods 105 in a circular array. The cross-section between each connecting rod 105, the protective cylinder 103, and the annular plate 107 forms a triangle, which makes the device stable. The guide plate 106 is used to guide the water flow and prevent the water flow from directly scouring the column 101 and the installation surface. The connecting rod 105, the annular plate 107, and the protective cylinder 103 adopt an integrated casting molding process, which solves the problem that the existing device has a complex structure and many connection structures, and the parts are prone to loosening after long-term underwater use. The buffer component 104 prevents the column 101 from being violently impacted by sand, gravel, fish, and shrimp during scour, which affects the use of the device.

[0027] In the scour protection device for marine pile foundations according to this utility model, the protective cylinder is fitted onto the outside of the column before installation. When the column is installed on the seabed, the fixing anchor on the annular plate is simultaneously embedded in the placement surface. The protective cylinder and the annular plate are connected and reinforced by the connecting rods. There are six connecting rods in a circular array, and the cross-section between each connecting rod, the protective cylinder, and the annular plate forms a triangle, which makes the device stable. The guide plate is used to guide the water flow and prevent the water flow from directly scouring the column and the installation surface. The connecting rods, the annular plate, and the protective cylinder are integrally cast, which solves the problem that the existing device has a complex structure and many connection structures, and the parts are prone to loosening after long-term underwater use. The buffer component prevents the column from being violently impacted by sand, gravel, fish, and shrimp during scour, which affects the use of the device.

[0028] The above-disclosed embodiments are merely preferred embodiments of the scour protection device for marine pile foundations of this utility model, and should not be construed as limiting the scope of this utility model. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this utility model still fall within the scope of this utility model.

Claims

1. A scour protection device for marine pile foundations, comprising a column, characterized in that: It also includes a protective assembly, which includes a protective cylinder, a buffer component, a connecting rod, a guide plate, an annular plate, and a fixed anchor; The protective cylinder is slidably connected to the column and located outside the column. The annular plate is fixedly connected to the protective cylinder and located on one side of the protective cylinder. The buffer member is connected to the protective cylinder and located outside the protective cylinder. The connecting rod is fixedly connected to the annular plate and the protective cylinder, and located between the annular plate and the protective cylinder. The fixing anchor is slidably connected to the annular plate and located on one side of the annular plate. The guide plate is fixedly connected to the connecting rod and located outside the connecting rod.

2. The scour protection device for marine pile foundations as described in claim 1, characterized in that: The buffer component includes a spring and a buffer pad. The spring is fixedly connected to the protective cylinder and is located outside the protective cylinder. The buffer pad is fixedly connected to the spring and is located on one side of the spring.

3. The scour protection device for marine pile foundations as described in claim 2, characterized in that: The protective component also includes a reinforcing rib and a mounting hole. The mounting hole is disposed on the connecting rod, and the reinforcing rib is slidably connected to the mounting hole and located inside the mounting hole.

4. The scour protection device for marine pile foundations as described in claim 3, characterized in that: The protective assembly also includes a ring, a mounting plate, and a reinforcing pile. The ring is slidably connected to the column and located on the outside of the column. The mounting plate is fixedly connected to the ring and located on the outside of the ring. The reinforcing pile is fixedly connected to the mounting plate and located on one side of the mounting plate.

5. The scour protection device for marine pile foundations as described in claim 4, characterized in that: The protective assembly also includes a connecting cable and a connecting plate. The connecting cable is fixedly connected to the ring and located on one side of the ring, and the connecting plate is fixedly connected to the connecting cable and located on one side of the connecting cable.

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