Engineering pile machining method for underwater bank protection of wharf

Abstract

The processing method of the engineering pile for the underwater bank protection of the wharf is characterized by comprising the following steps: step 1, preparing materials; step 2, processing a female buckle guide groove; thirdly, steel pipe guide sleeves and steel pipe guide columns are arranged; and fourthly, the lifting lugs are manufactured. The method is simple, construction is convenient, equipment cost is low, manufacturing can be completed through existing equipment except for limited tool design, welding equipment, cutting equipment, movable driving roller carriers and movable driven roller carriers used in the method are common equipment of large equipment manufacturing enterprises or can be put into production after slight transformation, the equipment preparation period can be greatly shortened, and production efficiency is improved. The production cost is reduced.

Description

Technical Field

[0001] The present invention relates to a slope protection technology, in particular to a deep-water dock maintenance equipment manufacturing technology, specifically to a method for processing engineering piles for underwater dock bank protection. Background Art

[0002] As we all know, when various freight terminals are built, in order to prevent the loss of underwater sand and soil, a row of piles need to be driven around the terminal to protect the sand and soil. When initially built, the driven engineering piles can completely protect the underwater sand and soil. Figure 1 However, with long-term transportation operations, the sand and soil at the bottom of the wharf is gradually carried away, and the amount of sand and soil decreases. 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] At present, with the increase of the service life of the wharf and the lack of corresponding maintenance measures, the safety problem of the wharf foundation is becoming more and more serious. Corresponding measures must be taken. However, due to the deep water depth of the deep-water wharf, it is impossible to directly drive the engineering piles into the foundation. It is necessary to use a combination of engineering piles and engineering piles to first drive the engineering piles into the underwater foundation, such as Figure 2 As shown, the engineering piles and the measure piles are separated. Therefore, the design and manufacture of engineering piles are the basis for ensuring the normal progress of bank protection construction. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the existing old dock revetment pile foundation reinforcement urgently needs to design and manufacture engineering piles, and to invent a method for processing engineering piles for underwater dock revetment.

[0005] The technical solution of the present invention is: A method for processing engineering piles for underwater revetment of a dock is characterized by comprising the following steps: Step 1. Material preparation; First, the material preparation is carried out according to the requirements of the pile structure and size, including a long straight seam steel pipe as the pile body 1, a small round steel pipe as a steel pipe guide sleeve 2 and a steel pipe guide column 4, a stiffening steel plate 3 as an enhanced support and a stiffening round steel 5 as a reinforcement, and a number of lifting lugs 6 for lifting; Step 2: Processing the guide groove of the steel pipe guide sleeve 2: First, place the steel pipe guide sleeve 2 as the raw material of the box buckle on the tooling table 7 with a V-shaped groove and clamp it. Then use the CNC plasma double-head cutting machine 8 to cut it, and process the open guide groove along the axial direction on the steel pipe guide sleeve 2 as the box buckle; Step 4: Make the steel pipe guide sleeve 2 and the steel pipe guide column 4; first, lift the qualified long straight seam steel pipe pile body 1 and place it on the welding tool, then lift the steel pipe guide sleeve 2 with the open guide groove and place it on the steel pipe pile body 1 and adjust the relative position, and spot weld the two circles' tangent points on both sides; secondly, rotate the pile body 1 180° through the movable active roller frame 16, lift the steel pipe guide column 4 and place it on the pile body 1 and adjust the relative position, and spot weld the two circles' tangent points on both sides; thirdly, drive the movable active roller frame 16 to The main pile of the engineering pile is rotated 90°, and the gantry CNC welding manipulator 11 is used to perform full-length continuous penetration welding on the steel pipe guide column 4 and the steel pipe guide sleeve 2 at the tangent position to the pile body 1 under the protection of CO2, with a penetration depth of >8mm. After the welding is completed, the welding weld is tested for qualification and the next step is followed; fourthly, the movable active roller frame 16 is driven again to rotate the pile body 1 180°, and the gantry CNC welding manipulator 11 is used to perform full-length continuous penetration welding on the other side of the steel pipe guide column 4 and the steel pipe guide sleeve 2 at the tangent position to the long straight seam steel pipe 1 under the protection of CO2, with a penetration depth of >8mm. mm, after the welding is completed, the welding seam is checked for qualification and the next step is followed; fifth, the movable active roller frame 16 is driven to rotate the engineering pile body 90°, and the steel pipe guide column 4 is added on both sides of the tangent point of the pile body 1 to add the reinforcing round steel 5 in place and adjust the relative position for positioning spot welding; sixth, the movable active roller frame 16 is driven to rotate the pile body 1 180°, and the open steel pipe guide sleeve 2 is added on both sides of the tangent point of the pile body 1 to add the reinforcing steel plate 3 in place and adjust the relative position for positioning spot welding; seventh, the movable active roller frame 16 is driven to rotate the pile body 1 90°, Using the gantry numerical control welding manipulator 11 under the protection of CO2, the reinforcing round steel (5) and one side of the stiffening steel plate 3 are subjected to continuous full-length penetration welding, with a penetration depth of >8mm. After the welding is completed, the welding seam is tested to be qualified and the next step is followed. Eighth, the movable active roller frame 16 is driven to rotate the pile body 1 by 180 degrees, and using the gantry numerical control welding manipulator 11 under the protection of CO2, the reinforcing round steel 5, the stiffening plate 3 and the long straight seam steel pipe 1 are subjected to continuous full-length penetration welding at the tangent point. The penetration depth is >8mm. After the welding is completed, the welding seam is tested to be qualified and the next step is followed. Step 5: Make the lifting lugs: put the lifting lugs in place according to the engineering pile lifting point settings and adjust the relative positions, spot weld them and complete the welding.

[0006] When manufacturing the steel pipe guide sleeve 2 and the steel pipe guide column 4, first lift the pile body and place it on the welding tooling, then lift the steel pipe guide sleeve 2 and the steel pipe guide column 4 and place them on the main body of the engineering pile and adjust their relative positions. Spot weld the two tangent points of the two circles on both sides, with weld leg size: hf=6mm, effective weld length L=100mm, weld one spot every 2m, and use CO2 shielded welding equipment for welds.

[0007] The welding tooling is composed of a fixed bracket 19 and a mobile active roller frame 16. The fixed bracket 19 includes an inner tube supporting roller turntable 13, which is mounted on one end of a supporting shaft 20. A block brake 17 is mounted on the other end of the supporting shaft 20. The block brake 17 is controlled by a brake assembly. The supporting shaft 20 is mounted on a mobile bracket 14 through a bearing. The mobile bracket 14 is mounted on a fixed seat 15 and is connected to a hydraulic cylinder 18 that drives it to move. The hydraulic cylinder 18 is also mounted on the fixed seat 15; one end of the engineering pile body is supported on the inner tube supporting roller turntable 13, and the other end is supported on the mobile active roller frame 16. The mobile active roller frame 16 not only moves along the guide rail, but also drives the engineering pile body supported thereon to perform a rotational motion.

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

[0009] The pin hole 6 for connecting with the measure pile is completed by drilling equipment or CNC cutting before the long straight seam steel pipe pile body 1 is installed on the welding fixture.

[0010] The pin hole 6 for connecting with the measure pile is processed directly on the welding fixture or after the welding fixture is removed by using a CNC cutting device or a drilling device after the lifting eye is welded.

[0011] Beneficial effects of the present invention: The present invention solves the difficult problem of engineering pile processing through careful design and comprehensive planning, and has the advantages of convenient and reliable operation and good safety.

[0012] The method of the present invention is simple, convenient to construct, and has low equipment cost. Except for limited tooling design, the manufacturing can be completed using existing equipment. The welding equipment, cutting equipment, and movable active roller frame used are all common equipment of large equipment manufacturing enterprises or can be put into production with slight modification, which can greatly shorten the equipment preparation cycle and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

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

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

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

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

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

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

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

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

[0026] Figure 14 It is a schematic diagram of the synchronous welding state of the steel pipe guide sleeve, the steel pipe guide column and the pile body of the invention.

[0027] Figure 15 yes Figure 14 AA cross-section.

[0028] Figure 16 It is a schematic diagram of the invented steel pipe guide sleeve, steel pipe guide column and the other side of the pile body being synchronously welded.

[0029] Figure 17 yes Figure 16 AA cross-section.

[0030] Figure 18 It 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 cross-sectional view.

[0032] Figure 20 It 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 cross-sectional view.

[0034] Figure 22It is a schematic diagram of the welding state of the reinforced round steel, one side of the reinforced rib plate and the pile body of the present invention.

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

[0036] Figure 24 It is a schematic diagram of the welding state of the reinforced round steel, the other side of the reinforced rib plate and the pile body of the present invention.

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

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

[0039] Figure 27 yes Figure 26 AA cross-sectional view. DETAILED DESCRIPTION

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

[0041] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those familiar with this technology. They are not used to limit the conditions for implementation of the present invention and therefore have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose of the present invention. At the same time, terms such as "upper", "lower", "left", "right", and "middle" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation. Changes or adjustments in their relative relationships should also be considered as the scope of implementation of the present invention without substantially changing the technical content.

[0042] like Figure 3-27 shown.

[0043] A method for processing engineering piles for underwater revetment of a dock, wherein the front view structure of the engineering piles involved 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, the material preparation is carried out according to the requirements of the engineering pile structure and size, including the long straight seam steel pipe as the pile body 1, the small round steel pipe as the steel pipe guide sleeve 2 and the steel pipe guide column 4, the reinforcing steel plate 3 as the enhanced support and the reinforcing round steel 5 as the reinforcement, and the lifting lug 6 as a number of lifting lugs, such as Figure 5for connecting the pin hole 6 with the measures pile can be completed in the material preparation stage by drilling equipment or CNC cutting, or can be completed directly on the welding fixture or after removing the welding fixture using CNC cutting equipment or drilling equipment.

[0044] Step 2: Processing the guide groove of the steel pipe guide sleeve 2: First, place the steel pipe guide sleeve 2 as the raw material of the box buckle on the tooling table 7 with a V-shaped groove and clamp it, then use the CNC plasma double-head cutting machine 8 to cut it, and process the open guide groove along the axial direction on the steel pipe guide sleeve 2 as the box buckle; Figure 6 、 7 As shown; Step 4: Connection of the steel pipe guide sleeve 2 and the steel pipe guide column 4 with the pile body 1; First, the qualified long straight seam steel pipe pile body 1 is hoisted and placed on the welding tool (such as Figure 8 ) on the welding tool of this embodiment (such as Figure 8 The structure is composed of a fixed bracket 19 and a mobile active roller frame 16. The fixed bracket 19 includes an in-tube roller turntable 13, which is mounted on one end of a support shaft 20 (two in the figure). The other end of each support shaft 20 is mounted with a block brake 17, which is controlled by a brake assembly. The support shaft 20 is mounted on a mobile bracket 14 via bearings. The mobile bracket 14 is mounted on a fixed base 15 and connected to a hydraulic cylinder 18 that drives its movement. The hydraulic cylinder 18 is also mounted on the fixed base 15. One end of the engineering pile body is supported by the in-tube roller turntable 13, and the other end is supported by the mobile active roller frame 16. The mobile active roller frame 16 not only moves along the guide rail but also drives the engineering pile body supported on it to rotate. Specific embodiments can also be designed with corresponding welding tooling based on their own characteristics to improve welding efficiency and convenience. Second, lift the steel pipe guide sleeve 2 with an open guide groove and place it on the steel pipe pile body 1 and adjust the relative position. Spot weld the two tangent points on both sides. Figure 9-11 Secondly, the pile body 1 is rotated 180° by the movable active roller frame 16, as Figure 12 、 13 , lift the steel pipe guide column 4 and place it on the pile body 1 and adjust the relative position, and spot weld the two sides of the tangent point of the two circles; third, drive the movable active roller frame 16 to rotate the main pile of the engineering pile 90 degrees, and use the gantry CNC welding manipulator 11 to perform full-length continuous penetration welding on the tangent part of the steel pipe guide column 4 and the steel pipe guide sleeve 2 with the pile body 1 under CO2 protection, as shown in the figure. Figure 14 、 15, the penetration depth is greater than 8mm. After the welding is completed, the weld is tested for qualification and the next step is followed. Fourth, the movable active roller frame 16 is driven again to rotate the pile body 1 180 degrees. The gantry CNC welding manipulator 11 is used to perform full-length continuous penetration welding on 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 under CO2 protection. Figure 16 、 17 , the penetration depth is greater than 8mm, after the welding is completed, the welding seam is tested to be qualified and the next step is followed; Fifth, the movable active roller frame 16 is driven to rotate the engineering pile body 90 degrees, and the steel pipe guide column 4 and the pile body 1 are tangent to each other. The reinforcing round steel 5 is added on both sides and the relative position is adjusted for positioning spot welding, such as Figure 18 、 19 Sixth, drive the movable active roller frame 16 to rotate the pile body 1 180 °, the open steel pipe guide sleeve 2 and the pile body 1 tangent point on both sides to increase the stiffening steel plate 3 in place and adjust the relative position positioning spot welding, such as Figure 20 、 21 Seventh, the movable active roller frame 16 is driven to rotate the pile body 1 by 90 °, and the CNC gantry welding manipulator 11 is used to strengthen the round steel 5 and the side of the stiffening steel plate 3 by continuous penetration welding under CO2 protection. Figure 22 、 23 , penetration> 8mm, after welding is completed, 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 degrees, and use the gantry CNC welding manipulator 11 to perform full-length continuous penetration welding on the tangent parts of the reinforcing round steel (5), the reinforcing rib plate 3 and the long straight seam steel pipe 1 under CO2 protection, such as Figure 24 、 25 , penetration>8mm, after welding is completed, check the welding seam for qualification and follow the next step; Step 5: Make the lifting lugs: put the lifting lugs in place according to the engineering pile lifting point settings and adjust the relative positions for spot welding and complete the welding; Figure 26 、 27 When manufacturing the steel pipe guide sleeve 2 and the steel pipe guide column 4, first hoist the pile body and place it on the welding fixture. Then hoist the steel pipe guide sleeve 2 and the steel pipe guide column 4 and place them on the main body of the engineering pile and adjust their relative positions. Spot weld the two tangent points of the two circles on both sides. The weld leg size is: hf = 6mm, the effective weld length L = 100mm, and weld one spot every 2m. Use CO2 shielded welding equipment for welding.

[0045] As common knowledge, in specific implementation, the block brake 17 should be released when driving the movable active roller frame 16. The structure and control mechanism of the block brake 17 can be designed and manufactured by referring to relevant brake brakes. The most common one is a spring brake pad. When the spring brake pad is pressed down, it contacts the brake block and prevents the brake block from rotating.

[0046] The above embodiments are only preferred implementations of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and equivalent substitutions can be made without departing from the principles of the present invention. These technical solutions after improvements and equivalent substitutions to the claims of the present invention all fall within the scope of protection of the present invention.

[0047] The parts not involved in the present invention are the same as the existing technology or can be implemented by using the existing technology.

Claims

1. A method for processing engineering piles for underwater revetment of a dock, characterized by: The following steps are involved: Step 1. Material preparation; First, the material is prepared according to the engineering pile structure and size requirements, including a long straight seam steel pipe as the pile body (1), a small round steel pipe as a steel pipe guide sleeve (2) and a steel pipe guide column (4), a stiffening steel plate (3) as an enhanced support, a stiffening round steel as a reinforcement (5), and a number of lifting lugs (6) for lifting; Step 2: Processing the guide groove of the steel pipe guide sleeve (2): first, place the steel pipe guide sleeve (2) as the raw material of the female buckle on a tooling table (7) with a V-shaped 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) as the female buckle; Step 4: Making the steel pipe guide sleeve (2) and the steel pipe guide column (4); first, hoist the qualified long straight seam steel pipe pile body (1) and place it on the welding fixture, then hoist the steel pipe guide sleeve (2) with the open guide groove and place it on the steel pipe pile body (1) and adjust the relative position, and spot weld the two tangent points on both sides; second, rotate the pile body (1) 180° by the movable active roller frame (16), hoist the steel pipe guide column (4) and place it on the pile body (1) and adjust the relative position, and spot weld the two tangent points on both sides; third, drive the movable active roller frame (16) to The main body of the engineering pile is rotated 90 degrees, and the gantry numerical control welding manipulator (11) is used to perform continuous penetration welding on the steel pipe guide column (4) and the steel pipe guide sleeve (2) at the tangent position to the pile body (1) under CO2 protection, with a penetration depth of >8mm. After the welding is completed, the weld is inspected and qualified for the next step; fourth, the movable active roller frame (16) is driven again to rotate the pile body (1) 180 degrees, and the gantry numerical control welding manipulator (11) is used to perform continuous penetration welding on the other side of the steel pipe guide column (4) and the steel pipe guide sleeve (2) at the tangent position to the long straight seam steel pipe (1) under CO2 protection, with a penetration depth of >8mm. 8mm, after the welding is completed, the welding seam is checked for qualification and the next step is followed; fifth, the movable active roller frame (16) is driven to rotate the engineering pile body 90°, and the steel pipe guide column (4) and the pile body (1) are tangent to each other. The reinforcing round steel (5) is added in place on both sides and the relative position is adjusted for spot welding; sixth, the movable active roller frame (16) is driven to rotate the pile body (1) 180°, and the open steel pipe guide sleeve (2) and the pile body (1) are tangent to each other. The reinforcing steel plate (3) is added in place on both sides and the relative position is adjusted for spot welding; seventh, the movable active roller frame (16) is driven to rotate the pile body (1) 9 0°, using the gantry numerical control welding manipulator (11) to perform full-length continuous penetration welding on one side of the reinforcing round steel (5) and the stiffening steel plate (3) under CO2 protection, the penetration depth is greater than 8mm, after the welding is completed, the welding seam is inspected to be qualified and the next step is followed; eighth, driving the movable active roller frame (16) to rotate the pile body (1) 180°, using the gantry numerical control welding manipulator (11) to perform full-length continuous penetration welding on the tangent part of the reinforcing round steel (5), the stiffening plate (3) and the long straight seam steel pipe (1) under CO2 protection, the penetration depth is greater than 8mm, after the welding is completed, the welding seam is inspected to be qualified and the next step is followed; Step 5: Make the lifting lugs: put the lifting lugs in place according to the engineering pile lifting point settings and adjust the relative positions, spot weld them and complete the welding.

2. The method according to claim 1, wherein: When the steel pipe guide sleeve (2) and the steel pipe guide column (4) are manufactured, the pile body is first hoisted and placed on the welding fixture, and then the steel pipe guide sleeve (2) and the steel pipe guide column (4) are hoisted and placed on the main body of the engineering pile and the relative positions are adjusted. The two circles are tangent to each other and spot welded on both sides. The weld leg size is: hf=6mm, the effective weld length L=100mm, and one weld is made every 2m. CO2 shielded welding equipment is used for welding.

3. The method according to claim 1, wherein: The welding fixture is composed of a fixed bracket (19) and a mobile active roller frame (16), the fixed bracket (19) includes an inner tube supporting wheel turntable (13), the inner tube supporting wheel turntable (13) is mounted on one end of the support shaft (20), the other end of the support shaft (20) is mounted with a block brake (17), the block brake (17) is controlled by a brake assembly, the support shaft (20) is mounted on the mobile bracket (14) through a bearing, the mobile bracket (14) is mounted on the fixed seat (15) and is connected to a hydraulic cylinder (18) that drives it to move, and the hydraulic cylinder (18) is also mounted on the fixed seat (15); one end of the engineering pile body is supported on the inner tube supporting wheel turntable (13), and the other end is supported on the mobile active roller frame (16), the mobile active roller frame (16) not only moves along the guide rail, but also can drive the engineering pile body supported thereon to perform a rotational motion.

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

5. The method according to claim 1, wherein: The pin hole (6) for connecting with the measure pile is completed by drilling equipment or CNC cutting before the long straight seam steel pipe pile body (1) is installed on the welding fixture.

6. The method according to claim 1, wherein: The pin hole (6) for connecting with the measure pile is processed directly on the welding fixture after the lifting lug is welded or after the welding fixture is removed using a CNC cutting device or a drilling device.

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