Plug-in pile feeder suitable for offshore wind power underwater pile sinking
By designing an insert pile feeder suitable for offshore wind power underwater, the problem of hydraulic impact hammers cannot be directly constructed is solved, and the joints are quickly installed and replaced, which meets the needs of steel pipe piles of different diameters, and improves construction efficiency and reliability.
Patent Information
- Application Number
- CN202422193012.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-06
AI Technical Summary
In the prior art, hydraulic shock hammers cannot directly carry out the construction of submerged piles of offshore wind power steel pipe piles, especially in deep-sea and far-sea environments, the top position of the steel pipe piles is below the water surface, resulting in construction difficulties.
An insert pile feeder suitable for offshore wind power submerged piles is designed, including the pile feeder main body and a removable plug-in joint. It can be quickly installed and replaced through flange connection, adapted to steel pipe piles of different diameters, combined with guide sections and limit table structures, ensuring construction efficiency.
It improves the applicability and construction efficiency of the pile feeder, saves construction time, avoids welding damage, and can reuse joints to adapt to different water depths and steel pipe pile diameters.
Smart Images
Figure CN223202333U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of offshore wind power underwater steel pipe pile sinking, and in particular relates to an inserting pile driver suitable for offshore wind power underwater pile sinking. Background Art
[0002] As offshore wind power generation expands into deep and offshore waters, jacket structures are increasingly being used for offshore wind turbine and booster station foundations. These structures offer advantages such as deep water capability, high structural rigidity, and lightweight construction. Multiple steel pipe piles are installed beneath the jacket, and the pile sinking process is categorized as either a first-pile or a last-pile method. The tops of the steel pipe piles are located below the waterline, making direct sinking impossible due to the hydraulic hammer's inability to penetrate the water. Furthermore, the mismatch between the hammer cap and the steel pipe pile diameter prevents direct sinking. Utility Model Content
[0003] The utility model is mainly intended to overcome the deficiencies of the prior art and provides an insertable pile driver suitable for underwater pile sinking in offshore wind power.
[0004] The utility model is realized through the following technical solutions:
[0005] An insert-type pile driver suitable for underwater pile sinking of offshore wind power generation, comprising a pile driver body and an insert-type connector;
[0006] The upper end of the pile driver body is used to connect the impact hammer, and the lower end of the pile driver body is detachably mounted on the plug-in joint, and the other end of the plug-in joint is used to insert into the interior of the steel pipe pile; the plug-in joint is a stepped tubular structure, including a large-diameter section and a small-diameter section connected thereto, and a horizontal limit platform is formed at the connection between the large-diameter section and the small-diameter section, and the lower end face of the limit platform of the plug-in joint corresponds to the upper top surface of the steel pipe pile.
[0007] In the above technical solution, an upper lifting lug and a lower lifting lug are fixedly mounted on the upper and lower outer walls of the pile driver body respectively.
[0008] In the above technical solution, a guide section is connected below the small diameter section, and the guide section is a tapered tubular structure.
[0009] In the above technical solution, a flange structure is installed on the outer wall of the lower end of the pile driver body, and a flange structure is also provided on the outer wall of the upper end of the corresponding plug-in connector. The pile driver body and the plug-in connector are fixedly installed by installing bolts on the two butted flange structures.
[0010] In the above technical solution, the length of the pile driver body can be set according to the water depth before construction to ensure that the impact hammer is located above the water surface.
[0011] In the above technical solution, the diameter of the pile driver body can be selected according to the diameter of the steel pipe pile.
[0012] In the above technical solution, a scale is provided on the outer wall of the pile driver body for estimating the settlement depth of the steel pipe pile.
[0013] The advantages and beneficial effects of the utility model are:
[0014] (1) The utility model connects the pile driver body and the plug-in connector in a detachable manner, thereby improving the applicability of the pile driver.
[0015] (2) The utility model can replace the insert-type joints more quickly than the sleeve-type joints by welding the limit plates, thus saving construction time and avoiding damage to the joints caused by the welding limit plates. The replaced joints can be reused.
[0016] (3) The pile driver body and the plug-in connector of the utility model are connected by a flange, which makes disassembly faster. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural diagram of the present utility model.
[0018] Figure 2 This is a schematic diagram of the insertion state of the plug-in joint and the steel pipe pile of the utility model.
[0019] In the figure, the pile driver body 1, the upper lifting lug 1.1, the lower lifting lug 1.2, the plug-in joint 2, the large diameter section 2.1, the limit platform 2.2, the small diameter section 2.3, the guide section 2.4, and the steel pipe pile 5.
[0020] For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work. DETAILED DESCRIPTION
[0021] Example 1
[0022] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with specific embodiments.
[0023] An insertable pile driver suitable for underwater pile sinking in offshore wind power generation, see attached Figure 1-2 , including a pile driver body 1 and an inserting connector 2.
[0024] The upper end of the pile driver body 1 is used to connect the impact hammer, and the lower end of the pile driver body 1 is detachably mounted with the plug-in connector 2, and the other end of the plug-in connector 2 is used to insert into the steel pipe pile 5; the upper and lower outer walls of the pile driver body 1 are respectively fixed with an upper lifting ear 1.1 and a lower lifting ear 1.2. When lifting the pile driver, a lifting belt can be connected to the upper lifting ear 1.1 and the lower lifting ear 1.2 of the pile driver body 1 to lift the pile driver; the plug-in connector 2 is a stepped tubular structure, including a large diameter section 2.1 and a small diameter section 2.3 connected thereto. The connection between the diameter section 2.1 and the small diameter section 2.3 forms a horizontal limit platform 2.2. The lower end surface of the limit platform 2.2 of the plug-in joint 2 corresponds to the upper surface of the steel pipe pile 5. When the pile driver is hammered downward, the limit platform 2.2 of the plug-in joint 2 will push the steel pipe pile 5 to move downward. The guide section 2.4 is connected below the small diameter section 2.3. The guide section 2.4 is a tapered tubular structure, which facilitates the insertion of the plug-in joint 2 into the steel pipe pile 5. For steel pipe piles 5 of different diameters, the plug-in joint 2 can be replaced to cooperate with pile driving.
[0025] Among them, a flange structure is installed on the outer wall of the lower end of the pile driver body 1, and a flange structure is also provided on the outer wall of the upper end of the corresponding plug-in joint 2. The pile driver body 1 and the plug-in joint 2 are fixedly installed by installing bolts on the two butted flange structures. During pile driving construction, the plug-in joint 2 can be quickly replaced to adapt to steel pipe piles 5 of different diameters.
[0026] The length of the pile driver body 1 can be set according to the water depth before construction to ensure that the impact hammer is located above the water surface.
[0027] The diameter of the pile driver body 1 can be selected according to the diameter of the steel pipe pile 5 .
[0028] Wherein, a scale is provided on the outer wall of the pile driver body 1 for estimating the settlement depth of the steel pipe pile 5 .
[0029] Example 2
[0030] The method for operating the insertion-type pile driver suitable for offshore wind power underwater pile sinking comprises the following steps:
[0031] Step 1: dock the flange structure on the pile driver body 1 with the flange structure on the plug-in connector 2, and then insert bolts to tighten them;
[0032] Step 2: Connect the upper lifting lug 1.1 and the lower lifting lug 1.2 on the pile driver body 1 to the lifting belt of the lifting vessel respectively, then lift the lifting belt and flip the pile driver to a vertical position, then remove the lifting belt connected to the lower lifting lug 1.2, and finally tighten the bolts again to the corresponding torque value;
[0033] Step 3: Using a lifting vessel, lift the pile driver to the center of the steel pipe pile 5, then slowly lower it to observe the insertion of the plug-in connector 2 into the interior of the steel pipe pile 5;
[0034] Step 4: hoist the impact hammer and insert it into the upper end of the pile driver body 1;
[0035] Step 5: Start hammering and calculate the settlement depth of the steel pipe pile according to the length of the steel pipe pile and the scale on the pile driver until the design depth requirement is reached;
[0036] Step 6: Lift the impact hammer and pile driver in sequence and place them on the reinforcement tooling for reinforcement.
[0037] For ease of explanation, spatial relative terms such as "upper", "lower", "left", and "right" are used in the embodiments to illustrate the relationship between one element or feature shown in the figures and another element or feature. It should be understood that, in addition to the orientation shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.
[0038] Moreover, relational terms such as “first” and “second” are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any actual relationship or order between these components.
[0039] The above is an exemplary description of the present invention. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be made by other technical personnel in this field without expending creative labor falls within the scope of protection of the present invention.
Claims
1. An insertable pile driver suitable for underwater pile driving in offshore wind power projects, characterized by: It includes a pile driver body and an insert connector; The upper end of the pile driver body is used to connect the impact hammer, and the lower end of the pile driver body is detachably mounted on the plug-in joint, and the other end of the plug-in joint is used to insert into the interior of the steel pipe pile; the plug-in joint is a stepped tubular structure, including a large-diameter section and a small-diameter section connected thereto, and a horizontal limit platform is formed at the connection between the large-diameter section and the small-diameter section, and the lower end face of the limit platform of the plug-in joint corresponds to the upper top surface of the steel pipe pile.
2. The insertion type pile driver suitable for underwater pile sinking of offshore wind power according to claim 1, characterized in that: The upper and lower outer walls of the pile driver body are respectively fixed with an upper lifting lug and a lower lifting lug.
3. The insertion type pile driver suitable for underwater pile sinking of offshore wind power according to claim 1, characterized in that: The small diameter section is connected to a guide section below, and the guide section is a tapered tubular structure.
4. The insertion type pile driver suitable for underwater pile sinking of offshore wind power according to claim 1, characterized in that: A flange structure is installed on the lower outer wall of the pile driver body, and a flange structure is also provided on the upper outer wall of the corresponding plug-in connector. The pile driver body and the plug-in connector are fixedly installed by installing bolts on the two butted flange structures.
5. The insertion type pile driver suitable for underwater pile sinking of offshore wind power according to claim 1, characterized in that: The length of the pile driver body can be set according to the water depth before construction to ensure that the impact hammer is located above the water surface.
6. The insertion type pile driver suitable for underwater pile sinking in offshore wind power according to claim 1, characterized in that: The diameter of the pile driver body can be selected according to the diameter of the steel pipe pile.
7. The insertion type pile driver suitable for underwater pile sinking of offshore wind power according to claim 1, characterized in that: A scale is provided on the outer wall of the pile driver body.