A steel pile head for a cutter suction dredger suitable for rock excavation

Abstract

The present invention discloses a steel pile head for a cutter suction dredger suitable for rock excavation, comprising a pile head body, a conical panel, a support plate, a pile core, and a blade plate. The pile head body is a cylindrical steel plate structure, the rear end of the pile core extends into the pile head body, the support plate is located between the pile head body and the pile core, the support plates are evenly distributed along the circumference and arranged radially, and the support plates are welded to the pile head body and the pile core respectively; the conical panel is located at the front end of the pile head body and is equally distributed along the circumference of the pile head body, the cross-section of the conical panel gradually decreases from back to front, and the conical panels are welded to the pile head body and the pile core respectively; a blade plate is provided between two adjacent conical panels, the blade plate and the support plate are aligned front to back, and the blade plate is welded to the conical panel and the pile core respectively. The present invention is suitable for rocky seabeds, has a simple structure, good structural strength and rigidity, and has strong rock breaking and rock penetration capabilities. It can effectively improve the ability of steel piles to position ships during rock excavation construction by a cutter suction dredger.

Description

Technical Field

[0001] The invention relates to the technical field of dredging engineering, in particular to a steel pile head of a cutter suction dredger suitable for rock dredging. Background Art

[0002] In recent years, the expanding dredging market has led to more complex rock and soil conditions, making dredging increasingly challenging. Dredging projects often encounter hard soils (primarily rock and other soils). The steel pile heads of traditional cutter suction dredgers are simple conical structures. Due to the hard soil, these piles have a low ability to penetrate and penetrate the rock. Cutter suction dredgers rely on steel piles to position the vessel for operation. In high winds and waves, the piles' ability to position the vessel decreases due to their shallow penetration into the rock, making it prone to displacement and impacting normal operation. Summary of the Invention

[0003] To address the challenges of the existing technology, the present invention provides a steel pile head for a cutter suction dredger suitable for rock excavation. The pile head's rock insertion process is divided into three stages: first, the pile core breaks the rock, then the blade cuts and expands the opening, and finally, the conical surface penetrates the rock to complete the steel pile's penetration. This staged rock breaking and penetration significantly enhances the steel pile's ability to penetrate the rock, improves the cutter suction dredger's ability to withstand complex environments and the immense cutting reaction force of the cutter during rock excavation, and improves the stability and reliability of the cutter suction dredger's rock excavation operations.

[0004] The present invention is achieved as follows: a steel pile head for a cutter suction dredger suitable for rock excavation includes a pile head body, a conical panel, a support plate, a pile core and a blade plate, the pile head body is a cylindrical steel plate structure, the rear end of the pile core extends into the pile head body, the support plate is located between the pile head body and the pile core, the support plates are evenly distributed along the circumference and arranged radially, and the support plates are welded to the pile head body and the pile core respectively; the conical panel is located at the front end of the pile head body and is equally divided along the circumference of the pile head body, the cross-section of the conical panel gradually decreases from back to front, and the conical panel is welded to the pile head body and the pile core respectively; a blade plate is provided between two adjacent conical panels, the blade plate is aligned one by one with the support plate front and back, and the blade plate is welded to the conical panel and the pile core respectively.

[0005] In the above technical solution, preferably, the rear end of the pile head body is welded to the steel pile body to form a steel pile.

[0006] In the above technical solution, preferably, the conical panel is a conical steel plate structure.

[0007] In the above technical solution, preferably, the pile core is a cylindrical solid steel column, and the front end of the pile core has a conical tip.

[0008] In the above technical solution, preferably, the blade extends from the front end of the pile core to the root of the conical panel.

[0009] In the above technical solution, preferably, the cross section of the blade plate is wedge-shaped, and the cross section of the blade plate first changes from small to large and then changes from large to small.

[0010] In the above technical solution, it is further preferred that the blade has two inclined surfaces, which are connected to form an inclined edge.

[0011] The present invention has the following advantages and beneficial effects:

[0012] (1) The pile head body of the present invention is a cylindrical steel plate structure with good support and bending resistance; the conical panel is a conical steel plate structure, which is conducive to rock penetration; the support plate connects the pile core with the pile head body structure, and transmits the force received by the pile core when breaking the rock to the pile head body structure; the pile core is a cylindrical solid steel column with a conical tip at the front end, which can ensure that the pile core has sufficient strength and rock breaking ability; the blade plate is aligned with the support plate front and back to ensure that the force received by the blade plate when cutting the rock can be transmitted to the pile head body through the support plate; the cross-section of the blade plate is wedge-shaped, which improves the ability to cut rocks; the blade plate extends from the front end of the pile core to the root of the conical panel, so that the blade plate cutting the rock is a gradual process; the blade plate is welded to the conical panel and the pile core, which can play a role in strengthening the pile core and ensure the strength and rigidity of the entire pile head.

[0013] (2) The steel pile head of the present invention is divided into three stages of rock penetration, with the opening increasing from small to large and from shallow to deep, step by step. The first stage is the rock breaking of the pile core. The cross-section of the pile core is very small, and it can penetrate the rock very well under the action of the weight of the steel pile; the second stage is the rock cutting of the blade plate. After the front end of the pile core completes the rock breaking, it reaches the position of the blade plate, and the rock breaking of the blade plate gradually expands outward from the opening of the pile core; the third stage is the rock penetration of the conical panel. Due to the rock breaking effect of the first two stages, the rock penetration of the conical panel is much easier, and the insertion of the steel pile is finally completed. The steel pile head has a simple structure, good structural strength and rigidity, and strong rock breaking and rock penetration capabilities. It can effectively improve the ability of steel piles to position ships during rock excavation construction by a cutter suction dredger. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of a steel pile head of a cutter suction dredger suitable for rock dredging provided by an embodiment of the present invention;

[0015] Figure 2 This is a front view of a steel pile head of a cutter suction dredger suitable for rock dredging provided by an embodiment of the present invention;

[0016] Figure 3 This is a side view of a steel pile head of a cutter suction dredger suitable for rock dredging provided by an embodiment of the present invention;

[0017] Figure 4 This is a rear view of a steel pile head of a cutter suction dredger suitable for rock dredging provided by an embodiment of the present invention;

[0018] Figure 5 The present invention is provided in an embodiment of the present invention and is applicable to the construction of a steel pile head of a cutter suction dredger.

[0019] In the figure: 1. Pile head body; 2. Conical panel; 3. Pile core; 4. Blade plate 1; 5. Blade plate 2; 6. Blade plate 3; 7. Support plate 1; 8. Support plate 2; 9. Support plate 3; 10. Steel pile head; 11. Steel pile body; 12. Cutter suction dredger. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper," "lower," "front," "back," "left," "right," "top," "bottom," "inside," and "outside" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "one," "two," and "three," etc., are used solely for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features referred to.

[0022] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical connections; direct connections or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] Example

[0024] See also Figures 1 to 4This embodiment provides a steel pile head for a suction dredger suitable for rock excavation, comprising a pile head body 1, a conical panel 2, a support plate, a pile core 3 and a blade plate. The pile head body 1 is a cylindrical steel plate structure with good support and bending resistance. The rear end of the pile core 3 extends into the pile head body 1. The pile core 3 is a cylindrical solid steel column. The front end of the pile core 3 has a conical tip, which can ensure that the pile core 3 has sufficient strength and rock breaking ability. The support plate is located between the pile head body 1 and the pile core 3. The support plates are evenly arranged along the circumference and radially arranged. The support plates are welded to the pile head body 1 and the pile core 3 respectively. The support plates connect the pile core 3 and the pile head body 1 structure together, and transmit the force received by the pile core 3 when breaking the rock to the pile head body 1 structure. The conical panels 2 are located at the front end of the pile head body 1 and are equally spaced along the circumference of the pile head body 1. The cross-section of the conical panels 2 gradually decreases from back to front. The conical panels 2 are welded to the pile head body 1 and the pile core 3. They are conical steel plates, which facilitate rock penetration. A blade plate is positioned between two adjacent conical panels 2. The blade plate is aligned front-to-back with the support plate, ensuring that the force applied by the blade plate to the rock is transmitted through the support plate to the pile head body 1. The blade plates are welded to the conical panels 2 and the pile core 3, respectively, reinforcing the pile core 3 and ensuring the strength and rigidity of the entire pile head. The blade plate extends from the front end of the pile core 3 to the base of the conical panels 2, making rock cutting a gradual process. The blade plate has a wedge-shaped cross-section, enhancing its rock-cutting capability. The blade plate's cross-section first increases in size and then decreases in size. Specifically, the blade plate has two inclined surfaces, which are connected to form a beveled edge.

[0025] In this embodiment, three support plates are provided, namely support plate 1 7, support plate 2 8, and support plate 3 9, and three blade plates are provided, namely blade plate 1 4, blade plate 2 5, and blade plate 3 6. Blade plate 1 4, blade plate 2 5, and blade plate 3 6 are aligned one by one with support plate 1 7, support plate 2 8, and support plate 3 9 respectively.

[0026] See also Figure 5 When in use, the rear end of the pile head body 1 is welded to the steel pile body 11 to form a steel pile. The steel pile head 10 of the present invention enters the rock in three stages, with the cracks increasing from small to large and from shallow to deep, step by step. The first stage is the pile core 3 breaking the rock. The cross-section of the pile core 3 is very small, and it can enter the rock very well under the action of the steel pile's gravity; the second stage is the blade plate cutting the rock. After the front end of the pile core 3 completes the rock breaking, it comes to the position of the blade plate. The blade plate breaking the rock gradually expands outward from the crack of the pile core 3; the third stage is the conical panel 2 entering the rock. Due to the rock-breaking effect of the first two stages, the conical panel 2 is much easier to enter the rock, and finally the insertion of the steel pile is completed.

[0027] The steel pile head designed in the present invention allows for progressive rock breaking and insertion during pile construction, significantly enhancing the pile's ability to penetrate the rock. This improves the cutter suction dredger's ability to withstand complex environments and the immense cutter cutter reaction forces during rock excavation, thereby enhancing the stability and reliability of the cutter suction dredger's rock excavation operations. The steel pile head of the present invention is suitable for rocky seabeds and boasts a simple structure, excellent structural strength and rigidity, and strong rock breaking and insertion capabilities. It effectively enhances the ability of the cutter suction dredger to position the pile during rock excavation.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein, and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel pile head for a cutter suction dredger suitable for rock excavation, characterized in that: The pile head comprises a main body, a conical panel, a support plate, a pile core and a blade plate, the pile head main body being a cylindrical steel plate structure, the rear end of the pile core extending into the pile head main body, the support plate being located between the pile head main body and the pile core, the support plates being evenly distributed circumferentially and radially arranged, the support plates being welded to the pile head main body and the pile core respectively; the conical panel being located at the front end of the pile head main body and being equally distributed circumferentially along the pile head main body, the cross-section of the conical panel gradually becoming smaller from back to front, the conical panels being welded to the pile head main body and the pile core respectively; a blade plate being arranged between two adjacent conical panels, the blade plate being aligned one by one with the support plate front and back, and the blade plate being welded to the conical panel and the pile core respectively, the blade plate extending from the front end of the pile core to the root of the conical panel, the cross-section of the blade plate being wedge-shaped, and the cross-section size of the blade plate first changes from small to large and then from large to small.

2. The steel pile head for a cutter suction dredger suitable for rock excavation according to claim 1, characterized in that: The rear end of the pile head body is welded to the steel pile body to form a steel pile.

3. The steel pile head for a cutter suction dredger suitable for rock excavation according to claim 1, characterized in that: The conical panel is a conical steel plate structure.

4. The steel pile head for a cutter suction dredger suitable for rock excavation according to claim 1, characterized in that: The pile core is a cylindrical solid steel column, and the front end of the pile core is provided with a conical tip.

5. The steel pile head for a cutter suction dredger suitable for rock excavation according to claim 1, characterized in that: The blade plate has two inclined surfaces, which are connected to form an inclined edge.

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