A method for processing engineering piles for underwater revetment of a wharf

Abstract

A kind of engineering pile processing method for wharf underwater revetment, characterized by: including the following steps: step one. Material preparation;Step two, female buckle guide slot processing;Step three, steel pipe guide sleeve and steel pipe guide column;Step four, lug production.The method is simple, convenient construction, low equipment cost, in addition to limited tooling design, can use existing equipment to complete manufacturing, the welding equipment, cutting equipment, movable main, passive roller frame used are common equipment of large equipment manufacturing enterprises or can be put into production after slight modification, can greatly shorten the equipment preparation period, reduce production cost.

Description

Technical Field

[0001] This invention relates to a slope protection technology, and more particularly to a manufacturing technology for equipment used in the maintenance of deep-water wharves, specifically a method for processing engineering piles for underwater revetment of wharves. Background Technology

[0002] As is well known, during the construction of various cargo terminals, in order to prevent the loss of underwater sand and soil, a row of piles is driven around the terminal for sand and soil protection. Initially, the driven piles are sufficient to protect the underwater sand and soil. Figure 1 As shown. However, with long-term transportation operations, the sand at the bottom of the wharf is gradually carried away, reducing the amount of sand. This leads to a significant reduction in the depth of the engineering piles driven into the ground during construction, affecting the stability of the engineering piles. The stability of the engineering piles will affect the stability and safety of the wharf, which may cause the wharf to collapse and be scrapped, resulting in serious economic losses and damage to equipment and personnel.

[0003] Currently, with the increasing service life of wharves and the lack of corresponding maintenance measures, the safety of wharf foundations is becoming increasingly serious, necessitating appropriate measures. However, due to the depth of deep-water wharves, it is impossible to directly drive engineering piles into the foundation. A combination of engineering piles must be used, first driving the engineering piles into the underwater foundation, such as... Figure 2 As shown, the engineering piles and the measure piles are then separated. Therefore, the design and manufacture of engineering piles is the foundation for ensuring the normal progress of revetment construction. Summary of the Invention

[0004] The purpose of this invention is to address the urgent need for designing and manufacturing engineering piles for reinforcing existing old wharf revetment foundations, and to invent a method for processing engineering piles for underwater wharf revetments.

[0005] The technical solution of this invention is: A method for processing engineering piles for underwater revetment of wharves, characterized by the following steps: Step 1. Material preparation; First, prepare materials according to the structural and dimensional requirements of the engineering piles, including long straight seam steel pipes as pile body 1, small round steel pipes as steel pipe guide sleeves 2 and steel pipe guide columns 4, stiffening steel plates 3 as reinforcing supports, stiffening round steel bars 5 as reinforcing ribs, and several lifting lugs 6 for lifting. Step 2, machining of the guide groove of the steel pipe guide sleeve 2: First, place the steel pipe guide sleeve 2, which is the raw material for the female buckle, on the tooling table 7 with a V-groove and clamp it. Then, use the CNC plasma double-head cutting machine 8 to cut it and machine an open guide groove along the axial direction on the steel pipe guide sleeve 2, which is the female buckle. Step 4: Fabrication of steel pipe guide sleeve 2 and steel pipe guide column 4; First, lift and place the qualified long straight seam steel pipe pile 1 on the welding fixture. Then, lift and place the steel pipe guide sleeve 2 with the machined open guide groove on the steel pipe pile 1, and adjust its relative position. Spot weld the two tangent points of the two circles on both sides. Second, rotate the pile 1 180° using the movable active roller frame 16, lift and place the steel pipe guide column 4 on the pile 1, and adjust its relative position. Spot weld the two tangent points of the two circles on both sides. Third, drive the movable active roller frame 16 to... The main pile of the engineering pile is rotated 90°. Using a gantry CNC welding robot 11 under CO2 protection, continuous full-length welding is performed on the tangent points of the steel pipe guide column 4 and steel pipe guide sleeve 2 to the pile body 1, with a weld penetration depth > 8mm. After welding, the weld seam is inspected for qualification before proceeding to the next step. Fourth, the movable active roller frame 16 is driven again to rotate the pile body 1 180°. Using the gantry CNC welding robot 11 under CO2 protection, continuous full-length welding is performed on the other side of the steel pipe guide column 4 and steel pipe guide sleeve 2 to the tangent points of the long straight seam steel pipe 1, with a weld penetration depth > 8mm. mm, after welding is completed, inspect the weld seam for qualification before proceeding to the next step; Fifth, drive the movable active roller frame 16 to rotate the main body of the engineering pile 90°, and add stiffening round steel 5 on both sides of the tangent point between the steel pipe guide column 4 and the pile body 1, and adjust the relative position for positioning and spot welding; Sixth, drive the movable active roller frame 16 to rotate the pile body 1 180°, and add stiffening steel plates 3 on both sides of the tangent point between the open steel pipe guide sleeve 2 and the pile body 1, and adjust the relative position for positioning and spot welding; Seventh, drive the movable active roller frame 16 to rotate the pile body 1 90° Using a gantry CNC welding robot 11 under CO2 protection, the reinforcing round steel (5) and stiffening steel plate 3 are continuously welded along their entire length with a penetration depth of >8mm. After welding, the weld is inspected for quality before proceeding to the next step. Eighth, the movable active roller frame 16 is driven to rotate the pile body 1 by 180°. Using a gantry CNC welding robot 11 under CO2 protection, the stiffening round steel 5, stiffening steel plate 3 and long straight seam steel pipe 1 are continuously welded along their entire length with a penetration depth of >8mm. After welding, the weld is inspected for quality before proceeding to the next step. Step 5, Lifting lug fabrication: Position the lifting lugs according to the lifting points of the engineering pile, adjust their relative positions, spot weld them, and complete the welding.

[0006] When fabricating the steel pipe guide sleeve 2 and the steel pipe guide column 4, the pile body is first lifted and placed on the welding fixture. Then, the steel pipe guide sleeve 2 and the steel pipe guide column 4 are lifted and placed on the main body of the engineering pile and their relative positions are adjusted. The two tangent points of the two circles are positioned and tack welded on both sides. The weld leg size is hf=6mm, the effective weld length is L=100mm, and one weld is made every 2m. CO2 shielded welding equipment is used for welding.

[0007] The welding fixture consists of a fixed bracket 19 and a movable active roller frame 16. The fixed bracket 19 includes an in-tube support roller turntable 13, which is mounted on one end of a support shaft 20. A block brake 17 is mounted on the other end of the support shaft 20. The block brake 17 is controlled by a brake assembly. The support shaft 20 is mounted on a movable bracket 14 via bearings. The movable bracket 14 is mounted on a fixed seat 15 and connected to a hydraulic cylinder 18 that drives its movement. The hydraulic cylinder 18 is also mounted on the fixed seat 15. One end of the engineering pile body is supported on the in-tube support roller turntable 13, and the other end is supported on the movable active roller frame 16. The movable active roller frame 16 moves along the guide rail and can also drive the engineering pile body supported on it to rotate.

[0008] When driving the movable active roller frame 16, the block brake 17 should be released.

[0009] The pin hole 6, used to connect with the measure pile, is completed by drilling equipment or CNC cutting before the long straight seam steel pipe pile body 1 is installed with welding fixtures.

[0010] The pin hole 6, which is used to connect with the measure pile, is processed directly on the welding fixture or after the welding fixture is removed, using CNC cutting or drilling equipment.

[0011] The beneficial effects of this invention are: This invention, through meticulous design and comprehensive planning, effectively solves the challenges of engineering pile processing. It boasts advantages such as convenient and reliable operation and high safety.

[0012] The method of this invention is simple, easy to construct, and has low equipment cost. Except for limited tooling design, it can be manufactured using existing equipment. The welding equipment, cutting equipment, and movable active roller frame used are common equipment in large equipment manufacturing enterprises or can be put into production with slight modifications, which can greatly shorten the equipment preparation cycle and reduce production costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an existing underwater pile foundation revetment.

[0014] Figure 2 This is a schematic diagram of the underwater pile foundation construction of the present invention.

[0015] Figure 3 This is a front view structural diagram of the engineering pile of the present invention.

[0016] Figure 4 This is a top view of the engineering pile of the present invention.

[0017] Figure 5 This is a schematic diagram of the cross-sectional structure and dimensions of the material prepared in the embodiment of the present invention.

[0018] Figure 6 This is a schematic diagram of the steel pipe guide sleeve (female buckle) opening processing and clamping of the present invention.

[0019] Figure 7 This is a schematic diagram of the opening processing of the steel pipe guide sleeve (female buckle) of the present invention.

[0020] Figure 8 This is a schematic diagram of the pile end clamp of the present invention.

[0021] Figure 9 This is a schematic diagram of the initial connection state between the steel pipe guide sleeve (female buckle) and the pile body of the present invention.

[0022] Figure 10 yes Figure 9 AA sectional view.

[0023] Figure 11 yes Figure 9 BB cross-sectional view.

[0024] Figure 12 This is a schematic diagram of the initial connection state between the steel pipe guide column (male coupling) and the pile body of the present invention.

[0025] Figure 13 yes Figure 12 AA sectional view.

[0026] Figure 14 This is a schematic diagram of the synchronous welding of the steel pipe guide sleeve, steel pipe guide column and pile body on one side.

[0027] Figure 15 yes Figure 14 AA section view.

[0028] Figure 16 This is a schematic diagram of the synchronous welding of the steel pipe guide sleeve, steel pipe guide column and the other side of the pile body.

[0029] Figure 17 yes Figure 16 AA section view.

[0030] Figure 18 This is a schematic diagram of the connection between the steel pipe guide column and the stiffening round steel of the present invention.

[0031] Figure 19 yes Figure 18 AA sectional view.

[0032] Figure 20 This is a schematic diagram of the connection between the steel pipe guide sleeve and the stiffening steel plate of the present invention.

[0033] Figure 21 yes Figure 20 AA sectional view.

[0034] Figure 22This is a schematic diagram showing the welding state of one side of the stiffening round steel and stiffening plate of the present invention to the pile body.

[0035] Figure 23 yes Figure 22 AA sectional view.

[0036] Figure 24 This is a schematic diagram showing the welding state of the other side of the stiffening round steel and stiffening plate of the present invention to the pile body.

[0037] Figure 25 yes Figure 24 AA sectional view.

[0038] Figure 26 This is a diagram showing the installation of the lifting lugs.

[0039] Figure 27 yes Figure 26 AA sectional view. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0042] like Figure 3-27 As shown.

[0043] A method for processing engineering piles for underwater revetment of a wharf, wherein the front view structure of the engineering piles is as follows: Figure 3 As shown, the top view structure is as follows: Figure 4 As shown, the specific steps include: Step 1. Material Preparation; First, prepare materials according to the structural and dimensional requirements of the engineering piles, including long straight seam steel pipes as pile body 1, small round steel pipes as steel pipe guide sleeves 2 and steel pipe guide columns 4, stiffening steel plates 3 for reinforcing support, stiffening round steel bars 5 for reinforcing ribs, and several lifting lugs 6 for hoisting, such as... Figure 5As shown; the pin hole 6 used to connect with the measure pile can be completed by drilling equipment or CNC cutting during the material preparation stage, or it can be processed directly on the welding fixture or after the welding fixture is removed after all the steps are completed using CNC cutting equipment or drilling equipment.

[0044] Step 2: Machining the guide groove of the steel pipe guide sleeve 2: First, place the steel pipe guide sleeve 2, which serves as the raw material for the female thread, on the tooling table 7 with a V-groove and clamp it. Then, use a CNC plasma double-head cutting machine 8 to cut it, machining an open guide groove along the axial direction on the steel pipe guide sleeve 2, which serves as the female thread; for example... Figure 6 , 7 As shown; Step 4: Connection and fabrication of steel pipe guide sleeve 2 and steel pipe guide column 4 with pile body 1; First, lift and place the qualified long straight seam steel pipe pile body 1 on the welding fixture (such as... Figure 8 On the welding fixture (such as...) in this embodiment Figure 8 The system consists of a fixed bracket 19 and a movable active roller frame 16. The fixed bracket 19 includes an in-tube support roller turntable 13, which is mounted on one end of a support shaft 20 (two shafts are shown in the figure). A block brake 17 is mounted on the other end of each support shaft 20, controlled by a braking assembly. The support shaft 20 is mounted on a movable bracket 14 via bearings. The movable bracket 14 is mounted on a fixed seat 15 and connected to a hydraulic cylinder 18 that drives its movement. The hydraulic cylinder 18 is also mounted on the fixed seat 15. One end of the engineering pile body is supported on the in-tube support roller turntable 13, and the other end is supported on the movable active roller frame 16. The movable active roller frame 16 moves along the guide rail and also drives the engineering pile body supported on it to rotate. Specific embodiments can also design corresponding welding fixtures according to their own characteristics to improve welding efficiency and convenience. Second, the steel pipe guide sleeve 2 with the machined open guide groove is lifted and placed on the steel pipe pile 1, and its relative position is adjusted. The two tangent points of the two circles are then positioned and tack welded on both sides. Figure 9-11 Secondly, the pile body 1 is rotated 180° by the movable active roller frame 16, as follows: Figure 12 , 13 First, the steel pipe guide column 4 is lifted and placed on the pile body 1, and its relative position is adjusted. The two tangent points of the two circles are then positioned and tack welded on both sides. Third, the movable active roller frame 16 is driven to rotate the main pile of the engineering pile 90°. Then, using a gantry CNC welding robot 11 under CO2 protection, the steel pipe guide column 4 and the steel pipe guide sleeve 2 are continuously welded to the tangent points of the pile body 1. Figure 14 , 15If the penetration depth is >8mm, after welding, inspect the weld seam for qualification before proceeding to the next step; Fourth, drive the movable active roller frame 16 again to rotate the pile body 1 180°, and use the gantry CNC welding robot 11 under CO2 protection to perform continuous penetration welding along the length of the steel pipe guide column 4 and the other side of the steel pipe guide sleeve 2 tangent to the long straight seam steel pipe 1, such as Figure 16 , 17 With a penetration depth > 8mm, after welding, inspect the weld seam for qualification before proceeding to the next step; Fifth, drive the movable active roller frame 16 to rotate the main body of the engineering pile 90°, and add reinforcing round steel 5 on both sides of the tangent point between the steel pipe guide column 4 and the pile body 1, and adjust the relative position for positioning and spot welding, such as Figure 18 , 19 Sixth, drive the movable active roller frame 16 to rotate the pile body 1 180°, and place the reinforcing steel plates 3 on both sides of the tangent point between the open steel pipe guide sleeve 2 and the pile body 1, and adjust and spot weld their relative positions. Figure 20 , 21 Seventh, drive the movable active roller frame 16 to rotate the pile body 1 by 90°, and use the gantry CNC welding robot 11 under CO2 protection to perform continuous full penetration welding on one side of the reinforcing round steel 5 and stiffening steel plate 3, such as... Figure 22 , 23 , penetration depth > 8mm, after welding, check the weld seam for qualification and proceed to the next step; eighth, drive the movable active roller frame 16 to rotate the pile body 1 180°, and use the gantry CNC welding robot 11 under CO2 protection to perform continuous penetration welding at the tangent of the stiffening round steel (5), stiffening plate 3 and long straight seam steel pipe 1, such as Figure 24 , 25 If the penetration depth is greater than 8mm, after welding is completed, check the weld seam for qualification before proceeding to the next step. Step 5, Lifting Lug Fabrication: Position the lifting lugs according to the lifting point settings of the engineering pile, adjust their relative positions, spot weld them, and complete the welding; for example... Figure 26 , 27 When fabricating the steel pipe guide sleeve 2 and steel pipe guide column 4, the pile body is first lifted and placed on the welding fixture. Then, the steel pipe guide sleeve 2 and steel pipe guide column 4 are lifted and placed on the main body of the engineering pile and their relative positions are adjusted. The two tangent points of the two circles are positioned and tack welded on both sides. The weld leg size is hf=6mm, the effective weld length is L=100mm, and one weld is made every 2m. CO2 shielded welding equipment is used for welding.

[0045] As is common knowledge, in specific implementation, when driving the movable active roller frame 16, the block brake 17 should be released. The structure and control mechanism of the block brake 17 can be designed and manufactured by referring to relevant brakes. The most common type is the spring brake pad. Pressing down the spring brake pad makes it contact the brake block, so that the brake block cannot rotate.

[0046] The above embodiments are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and equivalent substitutions without departing from the principle of the present invention. All such improvements and equivalent substitutions to the claims of the present invention fall within the protection scope of the present invention.

[0047] All parts not covered in this invention are the same as or can be implemented using existing technologies.

Claims

1. A method for processing engineering piles for underwater revetment of wharves, characterized in that: Includes the following steps: Step 1: Material preparation; First, prepare materials according to the structural and dimensional requirements of the engineering pile, including long straight seam steel pipes as pile body (1), small round steel pipes as steel pipe guide sleeves (2) and steel pipe guide columns (4), stiffening steel plates (3) as reinforcement support, stiffening round steel (5) as reinforcing ribs, and several lifting lugs for lifting. Step 2: Processing the guide groove of the steel pipe guide sleeve (2): First, place the steel pipe guide sleeve (2), which is the raw material of the female buckle, on the tooling table (7) with V-groove and clamp it. Then, use a CNC plasma double-head cutting machine (8) to cut it and process an open guide groove along the axial direction on the steel pipe guide sleeve (2), which is the female buckle. Step 3: Fabrication of steel pipe guide sleeve (2) and steel pipe guide column (4); First, lift the qualified pile body (1) and place it on the welding fixture. Then, lift the steel pipe guide sleeve (2) with the open guide groove and place it on the pile body (1) and adjust its relative position. Spot weld the two tangent points on both sides. Second, rotate the pile body (1) 180° using the movable active roller frame (16), lift the steel pipe guide column (4) and place it on the pile body (1) and adjust its relative position. Spot weld the two tangent points on both sides. Third, drive the movable active roller frame (16) to move the engineering pile... The main pile is rotated 90°, and the steel pipe guide column (4) and steel pipe guide sleeve (2) are continuously welded to the pile body (1) at the tangent point under CO2 protection using a gantry CNC welding robot (11). The weld penetration depth is >8mm. After welding, the weld seam is inspected for qualification before proceeding to the next step. Fourth, the movable active roller frame (16) is driven again to rotate the pile body (1) 180°, and the other side of the steel pipe guide column (4) and steel pipe guide sleeve (2) are continuously welded to the pile body (1) at the tangent point under CO2 protection using a gantry CNC welding robot (11). The weld penetration depth is >8mm. After welding is completed, the weld seam is inspected for qualification before proceeding to the next step; Fifth, drive the movable active roller frame (16) to rotate the main body of the engineering pile by 90°, and add stiffening round steel (5) to both sides of the tangent point between the steel pipe guide column (4) and the pile body (1) and adjust the relative position for spot welding; Sixth, drive the movable active roller frame (16) to rotate the pile body (1) by 180°, and add stiffening steel plates (3) to both sides of the tangent point between the open steel pipe guide sleeve (2) and the pile body (1) and adjust the relative position for spot welding; Seventh, drive the movable active roller frame (16) to rotate the pile body (1) by 90°. 90°, using a gantry CNC welding robot (11) under CO2 protection, perform continuous full-length penetration welding on one side of the stiffening round steel (5) and stiffening steel plate (3), with a penetration depth > 8mm. After welding, check the weld seam for qualification and proceed to the next step; Eighth, drive the movable active roller frame (16) to rotate the pile body (1) 180°, and use a gantry CNC welding robot (11) under CO2 protection to perform continuous full-length penetration welding at the tangent point of the stiffening round steel (5) and stiffening steel plate (3) to the pile body (1), with a penetration depth > 8mm. After welding, check the weld seam for qualification and proceed to the next step; Step 4, Lifting lug fabrication: Position the lifting lugs according to the lifting points of the engineering pile, adjust their relative positions, spot weld them, and complete the welding.

2. The method according to claim 1, characterized in that: When making the steel pipe guide sleeve (2) and steel pipe guide column (4), first lift the pile body and place it on the welding fixture, then lift the steel pipe guide sleeve (2) and steel pipe guide column (4) on the main body of the engineering pile and adjust their relative positions. The two tangent points of the two circles are positioned and spot welded on both sides. The weld leg size is hf=6mm and the effective length of the weld is L=100mm. Weld one every 2m. Use CO2 shielded welding equipment to weld the weld.

3. The method according to claim 1, characterized in that: The welding fixture consists of a fixed bracket (19) and a movable active roller frame (16). The fixed bracket (19) includes an in-tube support roller turntable (13), which is mounted on one end of a support shaft (20). The other end of the support shaft (20) is equipped with a block brake (17), which is controlled by a brake assembly. The support shaft (20) is mounted on a movable bracket (14) via a bearing. The movable bracket (14) is mounted on a fixed seat (15) and connected to a hydraulic cylinder (18) that drives its movement. The hydraulic cylinder (18) is also mounted on the fixed seat (15). One end of the main body of the engineering pile is supported on the in-tube support roller turntable (13), and the other end is supported on the movable active roller frame (16). The movable active roller frame (16) moves along the guide rail and can also drive the main body of the engineering pile supported on it to rotate.

4. The method according to claim 1, characterized in that: When driving the movable active roller frame (16), the block brake (17) should be released.

5. The method according to claim 1, characterized in that: The pin holes for connecting to the measure piles are completed by drilling equipment or CNC cutting before the pile body (1) is installed with welding fixtures.

6. The method according to claim 1, characterized in that: The pin holes used to connect with the temporary piles are machined directly on the welding fixture or after the lifting lugs are welded, using CNC cutting or drilling equipment.

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