A method and device for preventing the inclination of pipe piles during bridge construction

Abstract

The present invention discloses a method and device for preventing the inclination of pipe piles in bridge construction in the field of construction technology. The device for preventing the inclination of pipe piles includes a straightening mechanism and a pile pulling mechanism. The pile pulling mechanism is arranged above the bottom plate. A first slider is provided on the upper part of the pile pulling mechanism. A fastening ring is provided on one side of the first slider. A second slider is provided below the first slider. A groove is provided in the middle of the second slider. A third slider is provided in the groove. A second push rod mechanism is provided in the third slider. The first slider is slidably arranged with the second push rod mechanism. A translation plate is provided below the third slider. A frustum is provided below the third slider. A number of wedge-shaped blocks are distributed around the frustum. A fixing spring is provided below the frustum. The present invention combines the frustum and the wedge-shaped blocks, and then through the screw push rods in three directions, synchronizes the inclination of the fastening ring of the device with the pipe pile, so that the pipe pile is pulled out along the inclined direction during pile pulling, saving time and effort, and enabling the pipe pile to be vertically driven into the ground.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly to a method and device for preventing inclined pipe piles in bridge construction during pile driving. Background Art

[0002] As a commonly used foundation form, concrete pile foundations are widely used in various civil engineering fields. Whether it is bored cast-in-place piles or precast piles constructed by hammering or static pressing, concrete pile foundations have been applied in engineering practices at home and abroad for many years. In recent years, precast piles are used in the construction of piers, side-span platforms and cofferdams of steel trestles. During the pile driving process of precast piles, affected by geology, water buoyancy, waves and water flow, the precast pile body is prone to tilt due to uneven force, which affects the use effect of the pile foundation. When the precast pile body is severely tilted, it may not be usable, which not only causes waste of raw materials, but also affects the use of the bridge and causes serious dangerous accidents. Summary of the Invention

[0003] The purpose of the present invention is to provide a method and device for preventing inclined pipe piles in bridge construction during pile driving, so as to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A method for preventing inclined pipe piles in bridge construction during pile driving specifically includes the following steps:

[0006] Step 1: Workers insert the pipe pile into the fastening ring and extend it into a hole pre-installed underground through the fastening ring. When the pipe pile tilts during pile driving, the pile driver stops pile driving through a horizontal sensor, and the device for preventing inclined pipe piles in pile driving starts to operate;

[0007] Step 2: The fastening ring starts to tighten, and the first slider and the second slider start to move, adjusting with the inclination angle of the pipe pile;

[0008] Step 3: When the pipe pile tilts, it drives the translation plate to change the angle, and the wedge block starts to squeeze towards the round table accordingly, causing the bottom plate to tilt with the angle of the pipe pile, so that the force application point is the same as that of the inclined pipe pile;

[0009] Step 4: When the pipe pile stops moving, the inclination angle remains unchanged, the translation plate remains stationary, and the fourth push rod mechanism starts to move, causing the inclined translation plate to move upward, and the component force in the inclined direction drives the pipe pile to be pulled up along the inclined direction;

[0010] Step 5: When there is no soil resistance on the pipe pile, the annular push plate pushes it upright and places it vertically.

[0011] Another purpose of the present invention is:

[0012] A pipe pile anti - tilt pile driving device for the above - mentioned pipe pile anti - tilt pile driving method for bridge construction includes a straightening mechanism and a pile pulling mechanism. The pile pulling mechanism is arranged above the bottom plate. It is characterized in that a first slider is arranged on the upper part of the pile pulling mechanism, a fastening ring is arranged on one side of the first slider, a second slider is arranged below the first slider, a groove is arranged in the middle of the second slider, a third slider is arranged in the groove, a second push rod mechanism is arranged in the third slider, the first slider is slidably arranged with the second push rod mechanism, a third push rod mechanism is arranged in the middle of the third slider, a translation plate is arranged below the third slider, a frustum is arranged at the lower part of the third slider, a number of wedge - shaped blocks are distributed around the frustum, and a fixing spring is arranged at the lower part of the frustum.

[0013] Preferably, an annular push rod is arranged on the straightening mechanism, and a first push rod mechanism is arranged below the annular push rod.

[0014] Preferably, the annular push rod slides horizontally within the straightening mechanism.

[0015] Preferably, a fourth push rod mechanism is arranged on the bottom plate, there is a push rod, a motor is arranged below the push rod, and the upper part of the push rod is connected to the translation plate.

[0016] Preferably, the upper part of the frustum is connected to the translation plate, and the translation plate changes its angle following the frustum.

[0017] Preferably, the directions of the second push rod mechanism and the third push rod mechanism are perpendicular.

[0018] Preferably, the bottom plate is fixedly arranged on the pre - reserved horizontal ground.

[0019] Preferably, the fourth push rod mechanism is horizontally provided with two push rods.

[0020] Preferably, one side of the fixing spring is connected to the bottom plate, and the other end is arranged at the lower part of the frustum.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] By combining the frustum with the wedge - shaped blocks, the fastening ring is tilted synchronously with the pipe pile. When the device pulls out the pile, there is an upward component force in the tilted angle of the pipe pile, so that the pipe pile is pulled out along the tilted angle, avoiding the difficulty of prying due to the lower end of the pipe pile being inserted into the soil. Such a setting is more labor - saving and convenient.

[0023] By arranging screw push rods in three directions, when the pipe pile is tilted, it assists the fastening ring to be at the same tilted angle as the pipe pile. When pulling out the pile, through the cooperation of the three screw push rods, the angle change during pile pulling is more fitting, avoiding affecting the use effect of the pile - bearing foundation, avoiding waste of pipe piles, protecting the structure of the pipe piles, and enhancing the service life. Brief Description of the Drawings

[0024] Figure 1 It is a flowchart of a method for preventing inclined driving of pipe piles for bridge construction.

[0025] Figure 2 It is a schematic diagram of the overall structure of a device for preventing inclined driving of pipe piles for bridge construction;

[0026] Figure 3 It is a schematic diagram of the side structure of a device for preventing inclined driving of pipe piles for bridge construction;

[0027] Figure 4 It is a sectional view of a device for preventing inclined driving of pipe piles for bridge construction;

[0028] Figure 5 It is a structural diagram of the first slider of a device for preventing inclined driving of pipe piles for bridge construction;

[0029] Figure 6 It is a schematic diagram of the straightening structure of a device for preventing inclined driving of pipe piles for bridge construction;

[0030] Figure 7 It is a schematic diagram of the A position of the straightening structure of a device for preventing inclined driving of pipe piles for bridge construction;

[0031] Figure 8 It is a schematic diagram of the second slider structure of a device for preventing inclined driving of pipe piles for bridge construction;

[0032] Figure 9 It is a sectional view of the second slider of a device for preventing inclined driving of pipe piles for bridge construction;

[0033] Figure 10 It is a schematic diagram of the third slider structure of a device for preventing inclined driving of pipe piles for bridge construction;

[0034] Figure 11 It is a sectional view of the third slider of a device for preventing inclined driving of pipe piles for bridge construction;

[0035] Figure 12 It is a schematic diagram of the frustum structure of a device for preventing inclined driving of pipe piles for bridge construction;

[0036] Figure 13 It is a schematic diagram of the bottom plate structure of a device for preventing inclined driving of pipe piles for bridge construction;

[0037] Figure 14 It is a schematic diagram of the fourth push rod mechanism of a device for preventing inclined driving of pipe piles for bridge construction;

[0038] Figure 15 It is a schematic diagram of the annular push plate structure of a device for preventing inclined driving of pipe piles for bridge construction.

[0039] In the drawings, the list of components represented by each reference numeral is as follows:

[0040] 1. Pushing and aligning mechanism; 10. Ring-shaped pushing plate; 11. First push rod mechanism; 2. Pile pulling mechanism; 20. Tightening ring; 21. First slider; 210. Second push rod mechanism; 22. Second slider; 23. Third slider; 230. Third push rod mechanism; 24. Translation plate; 240. Frustum; 241. Wedge block; 242. Fixed spring; 9. Bottom plate; 90. Fourth push rod mechanism; 91. Push rod; 92. Motor. Specific implementation manner

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0042] Please refer to Figure 1 , a method for preventing inclined pile driving of pipe piles for bridge construction, specifically including the following steps:

[0043] Step 1: Workers insert the pipe pile into the tightening ring 20 and extend it into the hole pre-installed underground through the tightening ring 20. When the pipe pile is inclined during pile driving, the pile driver stops pile driving through a horizontal sensor, and the pipe pile anti-inclination pile driving device starts to operate;

[0044] Step 2: The tightening ring 20 starts to tighten, and the first slider 21 and the second slider 22 start to move and adjust with the inclination angle of the pipe pile;

[0045] Step 3: When the pipe pile is inclined, it drives the translation plate 24 to generate an angular change, and the wedge block 241 starts to squeeze towards the frustum 240 accordingly, causing the bottom plate 9 to incline with the angle of the pipe pile, so that the force application point is the same as that of the inclined pipe pile;

[0046] Step 4: When the pipe pile stops moving and the inclination angle remains unchanged, the translation plate 24 remains stationary, and the fourth push rod mechanism 90 starts to move, causing the inclined translation plate 24 to move upward, and the component force in the inclined direction drives the pipe pile to be pulled up along the inclined direction;

[0047] Step 5: When there is no soil resistance to the pipe pile, the ring-shaped pushing plate 10 pushes it upright and vertically lowers it.

[0048] Please refer to Figures 2 - 15, A pipe pile anti-tilting pile driving device applicable to the above-mentioned pipe pile anti-tilting pile driving method for bridge construction, including a straightening mechanism 1 and a pile pulling mechanism 2. The pile pulling mechanism 2 is arranged above the bottom plate 9. It is characterized in that a first slider 21 is arranged on the upper part of the pile pulling mechanism 2, a fastening ring 20 is arranged on one side of the first slider 21, a second slider 22 is arranged below the first slider 21, a groove is arranged in the middle of the second slider 22, a third slider 23 is arranged in the groove, a second push rod mechanism 210 is arranged in the third slider 23, the first slider 21 is slidably arranged with the second push rod mechanism 210, a third push rod mechanism 230 is arranged in the middle of the third slider 23, a translation plate 24 is arranged below the third slider 23, a frustum 240 is arranged at the lower part of the third slider 23, a number of wedge blocks 241 are distributively arranged around the frustum 240, and a fixing spring 242 is arranged at the lower part of the frustum 240;

[0049] During operation, when the pipe pile tilts, the fastening ring restrains it. The first slider 21 slides along with the second slider in its tilting direction, enabling the fastening ring to slide relative to the pipe pile. The further tilting of the pipe pile causes the third slider 23 to slide. When sliding, the wedge block 241 pushes the frustum 240, causing the third slider 23 to tilt. When the fixing spring 242 undergoes elastic deformation, the frustum 240 is restored.

[0050] As a further solution of the present invention, an annular push plate 10 is arranged on the straightening mechanism 1, and a first push rod mechanism 11 is arranged below the annular push plate 10;

[0051] During operation, the first push rod mechanism 11 arranged on the straightening mechanism 1 starts to operate. The first push rod mechanism 11 drives the annular push plate 10 to straighten the pipe pile.

[0052] As a further solution of the present invention, the annular push plate 10 can slide horizontally within the straightening mechanism 1;

[0053] During operation, the annular push plates 10 at both ends move in opposite directions to straighten the pipe pile.

[0054] As a further solution of the present invention, a fourth push rod mechanism 90 is arranged on the bottom plate 9, there is a push rod 91, a motor 92 is arranged below the push rod 91, and the upper part of the push rod 91 is connected to the translation plate 24;

[0055] During operation, the fourth push rod mechanism 90 starts to operate, the motor 92 starts, causing the push rod 91 to start operating, and the translation plate 24 moves upward to push the entire device to start pulling the pile.

[0056] As a further solution of the present invention, the upper part of the frustum 240 is connected to the translation plate 24, and the translation plate 24 follows the angular change of the frustum 240;

[0057] During operation, the frustum 240 is tilted under the thrust of the wedge block 241, causing the translation plate 24 to tilt synchronously. The translation plate 24 tilts to the same angle as the pipe pile, facilitating the extraction of the pipe pile along the inclination angle of the pipe pile.

[0058] As a further aspect of the present invention, the second push rod mechanism 210 and the third push rod mechanism 230 are perpendicular to each other in direction;

[0059] During operation, the second push rod mechanism 210 and the third push rod mechanism 230 operate, causing the fastening ring 20 to perform a curvilinear motion, conforming to the inclination angle of the pipe pile, so that the device extracts the pipe pile at the same angle as the pipe pile.

[0060] As a further aspect of the present invention, the bottom plate 9 is fixedly arranged on the pre-reserved horizontal ground;

[0061] During operation, the bottom plate 9 is stable, enabling the bottom plate 9 to bear the pressure of the inclination of the pipe pile and providing a stable platform required for pushing the pipe pile upright and extracting it.

[0062] As a further aspect of the present invention, the fourth push rod mechanism 90 is horizontally provided with two push rods 91;

[0063] During operation, the two push rods 91 enable the translation plate 24 to obtain sufficient upward thrust to ensure that the device completes the pile extraction action.

[0064] As a further aspect of the present invention, one side of the fixing spring 242 is connected to the bottom plate 9, and the other end is arranged at the lower part of the frustum 240;

[0065] During operation, when the frustum 240 tilts with the third slider 23 to reach the inclination angle that conforms to the pipe pile, after the pipe pile is straightened, the fixing spring 242 causes the frustum 240 to return to the initial position, and the third slider 23 returns to the initial position.

Claims

1. A method for preventing the inclination of pipe piles used in bridge construction, which method uses a straightening mechanism (1) and a pile pulling mechanism (2), and the pile pulling mechanism (2) is arranged above the bottom plate (9). Characterized in that: A first slider (21) is arranged on the upper part of the pile pulling mechanism (2), a fastening ring (20) is arranged on one side of the first slider (21), a second slider (22) is arranged below the first slider (21), a groove is arranged in the middle of the second slider (22), a third slider (23) is arranged in the groove, a second push rod mechanism (210) is arranged in the third slider (23), the first slider (21) is slidably arranged with the second push rod mechanism (210), a third push rod mechanism (230) is arranged in the middle of the third slider (23), a translation plate (24) is arranged below the third slider (23), a frustum (240) is arranged at the lower part of the third slider (23), a plurality of wedge-shaped blocks (241) are distributively arranged around the frustum (240), and a fixing spring (242) is arranged at the lower part of the frustum (240); The method comprises the following steps: Step 1: Workers insert the pipe pile into the fastening ring (20), and through the fastening ring (20), insert it into a pre-installed hole in the ground. When the pipe pile inclines during the start of pile driving, the pile driver stops pile driving through a horizontal sensor, and the pipe pile anti-inclination pile planting device starts to be activated; Step 2: The fastening ring (20) starts to tighten, and the first slider (21) and the second slider (22) start to move, and adjust along with the inclination angle of the pipe pile; Step 3: When the pipe pile inclines, it drives the translation plate (24) to generate an angular change, and the wedge-shaped blocks (241) start to squeeze towards the frustum (240), so that the bottom plate (9) inclines along with the angle of the pipe pile, and the stress point is the same as that of the inclined pipe pile; Step 4: When the pipe pile stops moving, the inclination angle remains unchanged, the translation plate (24) remains stationary, and the fourth push rod mechanism (90) starts to move, so that the inclined translation plate (24) moves upward, and the component force in the inclined direction drives the pipe pile to be pulled up along the inclined direction; Step 5: When there is no soil resistance for the pipe pile, the annular push plate (10) pushes it to be straightened and vertically lowers it.

2. A method for preventing the inclination of pipe piles used in bridge construction according to claim 1, Characterized in that: An annular push plate (10) is arranged on the straightening mechanism (1), and a first push rod mechanism (11) is arranged below the annular push plate (10).

3. A method for preventing the inclination of pipe piles used in bridge construction according to claim 2, Characterized in that: The annular push plate (10) generates a horizontal sliding movement within the straightening mechanism (1).

4. A method for preventing the inclination of pipe piles used in bridge construction according to claim 1, Characterized in that: A fourth push rod mechanism (90) is arranged on the bottom plate (9), there is a push rod (91), a motor (92) is arranged below the push rod (91), and the upper part of the push rod (91) is connected to the translation plate (24).

5. A method for preventing the inclination of pipe piles used in bridge construction according to claim 1, Characterized in that: The upper part of the frustum (240) is connected to the translation plate (24), and the translation plate (24) changes its angle following the frustum (240).

6. A method for preventing inclined pile driving of pipe piles for bridge construction according to claim 1, characterized in that: The directions of the second push rod mechanism (210) and the third push rod mechanism (230) are perpendicular.

7. A method for preventing inclined pile driving of pipe piles for bridge construction according to claim 1, characterized in that: The bottom plate (9) is fixedly arranged on the pre - reserved horizontal ground.

8. A method for preventing inclined pile driving of pipe piles for bridge construction according to claim 4, characterized in that: The fourth push rod mechanism (90) is horizontally provided with two push rods (91).

9. A method for preventing inclined pile driving of pipe piles for bridge construction according to claim 1, characterized in that: One side of the fixed spring (242) is connected to the bottom plate (9), and the other end is arranged at the lower part of the frustum (240).

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