Submerged pile sinking assisting device

Abstract

A sinking assisting device for underwater pile sinking comprises a body, a top plate is fixed to the upper end of the body, a bottom plate is fixed to the lower end of the body, limiting plates are installed on the left and right sides of the lower end of the bottom plate, and the distance between the two limiting plates is matched with the thickness of a sheet pile. According to the sinking assisting device for underwater pile sinking, auxiliary pile sinking can be achieved when the elevation of the pile top is lower than the water surface, and the pile sinking quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of prestressed concrete sheet pile water construction, in particular to a sinking aid device for underwater sinking piles. Background Art

[0002] Prestressed concrete sheet piles are usually constructed on water using a special piling boat, which drives the prestressed concrete sheet piles into the water using a diesel hammer. Normally, the top elevation of the sheet pile is above the water surface, and the diesel hammer can directly construct the pile to the designed elevation in one go. However, when the top elevation of the pile is below the water surface, the diesel hammer cannot be driven below the water surface due to the height limit of the pile frame and the protection of the diesel hammer. It is necessary to arrange a sinking aid device on the top of the pile, and the diesel hammer will transfer the force to the pile through the sinking aid device to sink the pile into place.

[0003] Since the construction is carried out on water, the ship is affected by wind and waves, and the sinking aid device is prone to shaking during the construction process, which can cause uneven force on the top of the pile and cause damage. In severe cases, it will cause the top of the pile to burst, resulting in quality problems. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a sinking aid device for underwater piles, which can ensure that the underwater piles are in place and protect the pile heads to avoid damage to the pile heads due to uneven force.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A sinking aid device for underwater piles comprises a main body, wherein a top plate is fixed at the upper end of the main body and a bottom plate is fixed at the lower end. Limit plates are installed on the left and right sides of the lower end of the bottom plate, and the spacing between the two limit plates matches the thickness of the sheet pile.

[0007] The limiting plate is an L-shaped plate, and a screw rod is arranged on the upper end of the corresponding bottom plate. The horizontal part of the L-shaped plate passes through the screw rod and is locked by a nut.

[0008] The horizontal portion of the limiting plate is provided with a round hole for the screw to pass through.

[0009] The horizontal part of the limit plate is provided with a hollow slide groove for the screw rod to pass through, and the two limit plates are adjusted to be relatively close or far away through the hollow slide groove.

[0010] A rubber gasket is fixed at the lower end of the bottom plate.

[0011] Lifting ears are fixed on both sides of the main body.

[0012] The outer side wall of the main body is provided with scales along the length direction.

[0013] The utility model provides a sinking aid device for underwater pile sinking, which has the following technical effects:

[0014] 1) By adding a main body of a certain height between the sheet pile and the diesel hammer, the diesel hammer can be prevented from extending into the water body.

[0015] 2) By setting a limit plate, the lower end of the device can be limited and positioned to avoid shaking.

[0016] 3) By setting the scale, it is easy to observe and realize the driving of the sheet pile into place. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is a working schematic diagram of the utility model (left view).

[0019] Figure 2 It is the front view of the utility model.

[0020] Figure 3 It is a top view of the utility model (short limiting plate).

[0021] Figure 4 It is a top view of the utility model (long limiting plate).

[0022] Figure 5 It is a top view of the utility model (long limiting plate + short limiting plate).

[0023] In the figure: main body 1, top plate 2, bottom plate 3, limit plate 4, rib plate 5, lifting ear 6, rubber gasket 7, scale 8, diesel hammer 9, sheet pile 10, hollow slide 11, rebar 12. DETAILED DESCRIPTION

[0024] like Figure 1-2 As shown, (reference elevation H=0 indicates the water surface position). An underwater pile sinking aid device comprises a main body 1, a top plate 2 is fixed to the upper end of the main body 1, and a bottom plate 3 is fixed to the lower end of the main body 1. Limiting plates 4 are installed on the left and right sides of the bottom plate 3, and the left and right distance between the two limiting plates 4 matches the thickness of the sheet pile.

[0025] Preferably, the main body 1 is a steel cylinder with a length of 2m and an outer diameter of 45cm. It serves as the main body for transmitting the hammer force, and a scale 8 is marked on the cylinder to facilitate observation and calculation of the pile top elevation.

[0026] Preferably, the top plate 2 is a steel top plate, 45 cm long, 45 cm wide, and 5 cm thick, and is arranged on the top of the steel cylinder, which is the hammering surface of the diesel hammer.

[0027] Preferably, the bottom plate 3 is a steel bottom plate, 90 cm long, 45 cm wide and 5 cm thick, and is arranged at the bottom of the steel cylinder; two threaded steel bars are fixed at intervals along the long sides on both sides to fix the limit plate 4.

[0028] Preferably, a plurality of ribs 5 are provided between the main body 1 and the bottom plate 3. The ribs 5 are steel ribs, 50 cm high and 1 cm thick, and are provided in 6 locations to strengthen the fixation of the steel cylinder and the steel bottom plate.

[0029] Preferably, lifting ears 6 are fixed on the left and right side walls of the main body 1, and the lifting ears 6 are used for lifting to assist the pile sinking.

[0030] Preferably, a rubber gasket 7 is fixed to the lower end of the bottom plate 3. The rubber gasket 7 has the same length and width as the bottom plate 3 and is 1 cm thick. It increases the friction between the bottom plate and the pile top and protects the sheet pile, reducing damage to the pile top during the hammering process.

[0031] Preferably, the limiting plate 4 is an L-shaped steel plate with a thickness of 1 cm, and the horizontal portion of the limiting plate 4 is fixed to the bottom plate 3 by means of threaded steel bars 12 and nuts.

[0032] There are two types: long and short:

[0033] 1) Short limit plate 4.1: Figure 4 As shown, the portion perpendicular to the bottom plate 3 is 45 cm long (the same length as the top plate or slightly longer than the top plate); the portion parallel to the bottom plate 3 is provided with a round hole, which is fixed to the threaded steel bar 12 on the bottom plate 3 by a nut and cannot be adjusted.

[0034] 2) Long limit plate 4.2: Figure 3 As shown, the portion perpendicular to the bottom plate 3 is 90 cm long (the same length as the bottom plate or slightly smaller than the bottom plate); the portion parallel to the bottom plate 3 is provided with a hollow slide 11, which is fixed to the threaded steel bar 12 on the bottom plate 3 by a nut and can be adjusted within a certain range to adapt to concrete sheet piles of different thicknesses.

[0035] 3) If Figure 5 As shown, in addition, one side of the device can be set as a short limit plate 4.1 and the other side can be set as a long limit plate 4.2. The reason is that the main force position of the prestressed U-shaped sheet pile is in the middle of the short side, and the short limit plate 4.1 fits the side of the short side of the prestressed U-shaped sheet pile. Therefore, the short limit plate 4.1 is fixedly installed to ensure that the force position is stable and not loose.

[0036] Working principle and process:

[0037] 1) Fix the lifting rope on the lifting lug 6 and hang the device on the top of the sheet pile 10.

[0038] 2) Pass the hollow chute 11 of the horizontal part of the limit plate 4 (long limit plate 4.2) through the threaded steel bar 12 of the bottom plate 3, and adjust it accordingly according to the pile thickness so that the vertical parts of the two limit plates 4 fit the side walls of the sheet pile 10, and then screw in the nut to fix the limit plate 4 on the bottom plate 3.

[0039] 3) The diesel hammer 9 hits the top plate 2, thereby moving the sheet pile 10 downward to achieve the purpose of sinking the pile; the scale 8 can be checked through the level to confirm whether the pile is in place.

[0040] 4) After it is in place, move to the next sheet pile 10.

[0041] 5) After use, remove the limit plate 4, move the device to the storage area and secure it.

Claims

1. A sinking aid device for underwater pile sinking, characterized in that: It comprises a main body (1), wherein a top plate (2) is fixed at the upper end of the main body (1), and a bottom plate (3) is fixed at the lower end, and limit plates (4) are installed on the left and right sides of the lower end of the bottom plate (3), and the distance between the two limit plates (4) matches the thickness of the sheet pile (10).

2. The underwater pile sinking aid device according to claim 1, characterized in that: The limiting plate (4) is an L-shaped plate, and a screw is provided at the upper end of the corresponding bottom plate (3), and the horizontal part of the L-shaped plate passes through the screw and is locked by a nut.

3. The underwater pile sinking aid device according to claim 2, characterized in that: The horizontal portion of the limiting plate (4) is provided with a circular hole for the screw to pass through.

4. The underwater pile sinking aid device according to claim 2, characterized in that: The horizontal portion of the limit plate (4) is provided with a hollow slide groove (11) for the screw rod to pass through, and the two limit plates (4) are adjusted to be relatively close or distant via the hollow slide groove (11).

5. The underwater pile sinking aid device according to claim 1, characterized in that: A rubber gasket (7) is fixed to the lower end of the bottom plate (3).

6. The underwater pile sinking aid device according to claim 1, characterized in that: Lifting ears (6) are fixed on both sides of the main body (1).

7. The underwater pile sinking aid device according to claim 1, characterized in that: The outer side wall of the main body (1) is provided with scales (8) along the length direction.

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