A method for assembling and constructing a cruciform pile rack platform

Abstract

The application discloses a kind of cross tooth fixed pile frame platform assembly construction methods, it includes the following steps: S1: providing first fixed pile frame, second fixed pile frame, third fixed pile frame, fourth fixed pile frame and multiple platform layers;S2: survey fixed pile frame installation inspection line;S3: install first fixed pile frame and second fixed pile frame;S4: multiple platform installation pieces are formed after platform layer assembly, and are hoisted in turn, and adjustment area is reserved;S5: corresponding platform installation piece is welded and fixed in the outside of first fixed pile frame and the outside of second fixed pile frame;S6: install third fixed pile frame and fourth fixed pile frame;S7: each fixed pile frame is welded and fixed on ship deck;S8: adjustment piece is installed at corresponding adjustment area, forms maintenance platform;using maintenance platform, corresponding adjustment piece is welded and fixed on third fixed pile frame and fourth fixed pile frame.The application can avoid repeated erection in construction process, can improve installation efficiency while compressing ship dock construction period.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to a method for assembling and constructing a cross-tooth piling platform. Background Technology

[0002] The lifting system is the core system for raising and lowering a self-elevating platform. One mainstream installation method is the use of an electrically driven rack and pinion lifting system on board. Rack and pinion systems offer higher stability and safety. Currently, the mainstream construction method involves welding the lifting base structure (hereinafter referred to as the lifting foundation) to the hull before assembling the maintenance platform surrounding it. This method requires repeated scaffolding erection, lengthening the overall construction cycle. Specifically, after each lifting base is positioned, scaffolding is erected, adjusted, welded, dismantled, and the maintenance platform assembled; then scaffolding is erected, welded, and dismantled again.

[0003] However, this assembly method has the following disadvantages: (1) The ship has already entered the dock at this time, and repeated operations occupy a long dock installation cycle, which is not conducive to the shipyard to shorten the dock production cycle; (2) There are high-altitude operations and cross operations; (3) It is necessary to modify or dismantle the scaffolding according to the site conditions to meet the construction requirements; (4) This installation method is difficult to construct, has a long cycle, and is costly. Summary of the Invention

[0004] The purpose of this invention is to provide a method for assembling and constructing a cross-tooth piling platform, which can avoid the problem of repeated scaffolding during construction, thus preventing production disruptions, and can improve installation efficiency while shortening the construction cycle in the shipyard.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A method for assembling and constructing a cross-tooth piling platform includes the following steps: Step S1: Provide the first pile fixing frame, the second pile fixing frame, the third pile fixing frame, the fourth pile fixing frame, and multiple platform layers; Step S2: Taking the main hull pile leg cofferdam structure as the center, mark two cross-shaped inspection lines for the first and second fixed pile installations on the hull structure. Step S3: Install the first and second pile fixing frames on the symmetrical sides of the main hull pile leg cofferdam structure, respectively, so that the first and second pile fixing frames are respectively located on the installation inspection line of the first pile fixing frame, and reserve the installation positions of the third and fourth pile fixing frames on the installation inspection line of the second pile fixing frame; then, perform the first positioning welding process to initially fix the first and second pile fixing frames on the hull deck; Step S4: Assemble multiple platform layers on the hull deck along the height direction of the main hull leg cofferdam structure to form multiple platform mounting pieces; sequentially hoist the corresponding platform mounting pieces to the outside of the first and second fixed pile frames. A first adjustment area is reserved between the platform mounting pieces located around the first fixed pile frame and the platform mounting pieces located around the second fixed pile frame at the corresponding installation position on the third fixed pile frame. A second adjustment area is reserved between the platform mounting pieces located around the first and the platform mounting pieces located around the second fixed pile frame at the corresponding installation position on the fourth fixed pile frame. Step S5: Weld and fix the corresponding platform mounting plate to the outside of the first and second fixed pile frames. Step S6: Sequentially hoist the third and fourth fixed pile frames at the center of the main hull leg cofferdam structure, symmetrically install the third and fourth fixed pile frames on both sides of the main hull leg cofferdam structure, and position the third and fourth fixed pile frames on the installation inspection line of the second fixed pile frame; subsequently, perform a second tack welding process to initially fix the third and fourth fixed pile frames to the hull deck, so that the first, second, third, and fourth fixed pile frames form a cross-tooth fixed pile frame; Step S7: Recheck the positioning positions of the first, second, third, and fourth fixed pile frames. Once the requirements are met, weld and fix them to the ship's deck. Step S8: Install the first platform adjustment piece and the second platform adjustment piece at the first adjustment area and the second adjustment area respectively, and connect and weld the first platform adjustment piece and the second platform adjustment piece to the platform mounting piece respectively, forming a closed maintenance platform around the outside of the cross-tooth fixed pile frame; use the maintenance platform to perform welding operations to weld and fix the platform adjustment piece and the corresponding platform mounting piece to the outside of the third fixed pile frame and the outside of the fourth fixed pile frame respectively.

[0006] As a preferred embodiment of the present invention, in step S4, the length of the first adjustment area is 200mm~500mm.

[0007] In a preferred embodiment of the present invention, in step S4, the length of the second adjustment area is 200mm~500mm.

[0008] As a preferred embodiment of the present invention, in step S4, the number of platform layers in one of the platform mounting sheets is four.

[0009] As a preferred embodiment of the present invention, in step S3, the first positioning welding process is as follows: a first positioning plate is provided on the hull deck, one side of the first positioning plate is welded to the hull deck, and the other side of the first positioning plate is welded to the bottom of the first pile frame and the bottom of the second pile frame.

[0010] As a preferred embodiment of the present invention, in step S6, the second positioning welding process is as follows: a second positioning plate is provided on the hull deck, one side of the second positioning plate is welded to the hull deck, and the other side of the second positioning plate is welded to the bottom of the third and fourth fixed pile frames.

[0011] As a preferred embodiment of the present invention, in step S4, the platform mounting plate corresponding to the first fixed pile frame is one or two.

[0012] As a preferred embodiment of the present invention, in step S4, the platform mounting plate corresponding to the second fixed pile frame is one or two.

[0013] As a preferred embodiment of the present invention, in step S5, before welding and fixing the corresponding platform mounting plate to the outside of the first fixed pile frame and the outside of the second fixed pile frame, temporary scaffolding is erected to assist in the welding.

[0014] The method for assembling and constructing a cross-tooth piling platform provided by this invention has the following advantages compared with the prior art: This invention disassembles the cross-tooth fixed pile frame and maintenance platform into multiple pieces, which are then installed and welded to the ship's deck. After the maintenance platform is installed, it can be used to replace scaffolding for welding operations on the fixed pile frame. Compared with the existing technology of welding the cross-tooth fixed pile frame to the ship's hull and then assembling the maintenance platform around it, this invention has the following advantages: (1) It can greatly reduce the number of times scaffolding is erected and dismantled during construction, saving the construction period and resources in the dock; (2) This assembly construction method is highly safe, and construction personnel can assemble the platform layer on the ground (i.e., on the ship's deck) to form the platform installation pieces, and there is no interference from other operations around, making construction less difficult; (3) This assembly construction method has high work efficiency, and the outfitting and structure are hoisted into place at one time, with a short construction period and low cost. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0016] Figure 1 This is a schematic diagram of marking the inspection lines for the installation of the fixed pile frame on the ship's hull structure. Figure 2This is a schematic diagram (main view) of the installation of the first and second pile fixing frames on the main hull pile leg cofferdam structure. Figure 3 This is a top view (showing the installation diagram of the first and second pile fixing frames on the main hull pile leg cofferdam structure). Figure 4 This is a schematic diagram (front view) of the platform mounting plate being installed on the first and second fixed pile frames. Figure 5 This is a top view diagram of the platform mounting plate being installed on the first and second fixed pile frames. Figure 6 This is a top view of the installation of the third fixing pile frame on the main hull pile leg cofferdam structure. Figure 7 This is a schematic diagram (top view) of the installation of the fourth fixing pile frame on the main hull pile leg cofferdam structure.

[0017] Marked in the image: First pile fixing frame 100; Second pile fixing frame 200; Third pile fixing frame 300; Fourth pile fixing frame 400; Main hull pile leg cofferdam structure 500; First pile fixing frame installation inspection line 501; Second pile fixing frame installation inspection line 502; Hull deck 600; Maintenance platform 700; Platform layer 710; Platform installation piece 720; First adjustment area 730; Second adjustment area 740; First adjustment piece 750; Second adjustment piece 760. Detailed Implementation

[0018] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0019] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. It should be understood that the terms "first," "second," etc., are used in this invention to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0020] Please see Figures 1 to 7 This invention provides a method for assembling and constructing a cross-tooth piling platform, which includes the following steps: Step S1: Provide a first pile fixing frame 100, a second pile fixing frame 200, a third pile fixing frame 300, a fourth pile fixing frame 400, and multiple platform layers 710.

[0021] Step S2: Centered on the main hull pile leg cofferdam structure 500, mark two cross-shaped inspection lines 501 and 502 on the hull structure for the installation of the first and second fixed pile frames.

[0022] Step S3: Install the first pile fixing frame 100 and the second pile fixing frame 200 on the symmetrical sides of the main hull pile leg cofferdam structure 500, so that the first pile fixing frame 100 and the second pile fixing frame 200 are respectively located on the first pile fixing frame installation inspection line 501, and reserve the installation positions of the third pile fixing frame 300 and the fourth pile fixing frame 400 on the second pile fixing frame installation inspection line 502; then, perform the first positioning welding process to initially fix the first pile fixing frame 100 and the second pile fixing frame 200 on the hull deck 600.

[0023] Step S4: Assemble multiple platform layers 710 on the hull deck 600 along the height direction of the main hull leg cofferdam structure 500 to form multiple platform mounting pieces 720: sequentially hoist the corresponding platform mounting pieces 720 to the outside of the first pile fixing frame 100 and the outside of the second pile fixing frame 200; between the platform mounting pieces 720 located around the first pile fixing frame 100 and the platform mounting pieces 720 located around the second pile fixing frame 200, a first adjustment area 730 is reserved at the corresponding installation position on the third pile fixing frame 300; between the platform mounting pieces 720 located around the first pile fixing frame 100 and the platform mounting pieces 720 located around the second pile fixing frame 200, a second adjustment area 740 is reserved at the corresponding installation position on the fourth pile fixing frame 400. It should be noted that in this step, the platform mounting plate 720 corresponding to the first pile fixing frame 100 is one or two; the platform mounting plate 720 corresponding to the second pile fixing frame 200 is one or two. The setting of the first adjustment area 730 and the second adjustment area 740 can reserve corresponding areas for the installation of the third pile fixing frame 300 and the fourth pile fixing frame 400 in subsequent steps, avoiding positional interference between components. In this embodiment, the length of the first adjustment area 730 is preferably 200mm~500mm, and the length of the second adjustment area 740 is preferably 200mm~500mm.

[0024] Step S5: Weld and fix the corresponding platform mounting plate 720 to the outside of the first pile fixing frame 100 and the outside of the second pile fixing frame 200.

[0025] Step S6: The third pile fixing frame 300 and the fourth pile fixing frame 400 are hoisted sequentially at the center position of the main hull pile leg cofferdam structure 500. The third pile fixing frame 300 and the fourth pile fixing frame 400 are symmetrically installed on both sides of the main hull pile leg cofferdam structure 500, and the third pile fixing frame 300 and the fourth pile fixing frame 400 are respectively located on the second pile fixing frame installation inspection line 502. Subsequently, a second tack welding process is performed to initially fix the third pile fixing frame 300 and the fourth pile fixing frame 400 on the hull deck 600, so that the first pile fixing frame 100, the second pile fixing frame 200, the third pile fixing frame 300 and the fourth pile fixing frame 400 form a cross-tooth pile fixing frame.

[0026] Step S7: Recheck the positioning positions of the first pile fixing frame 100, the second pile fixing frame 200, the third pile fixing frame 300 and the fourth pile fixing frame 400. After the requirements are met, weld and fix them to the hull deck 600.

[0027] Step S8: Install the first platform adjustment piece and the second platform adjustment piece at the first adjustment area 730 and the second adjustment area 740 respectively, and connect and weld the first platform adjustment piece and the second platform adjustment piece to the platform mounting piece 720 respectively, forming a closed maintenance platform 700 around the outside of the cross-tooth fixed pile frame; use the maintenance platform 700 to perform welding operations, and weld and fix the platform adjustment piece and the corresponding platform mounting piece 720 to the outside of the third fixed pile frame 300 and the outside of the fourth fixed pile frame 400 respectively.

[0028] The cross-tooth fixed pile frame platform assembly and construction method of the present invention is to disassemble the cross-tooth fixed pile frame and the maintenance platform 700 into multiple pieces, which are then installed and welded to the ship deck 600 in sequence. After the maintenance platform 700 is installed, it can be used to replace scaffolding to weld the fixed pile frame. Compared with the prior art, which is to weld the cross-tooth fixed pile frame to the ship hull and then assemble the maintenance platform 700 around it, it has the following advantages: (1) It can greatly reduce the number of times the scaffolding is erected and dismantled during the construction process, saving the construction cycle and resources in the dock; (2) The assembly and construction method is highly safe. Construction personnel can assemble the platform layer 710 on the ground (i.e., on the ship deck 600) to form the platform installation piece 720, and there are no other operations around to interfere with the construction, so the construction difficulty is small; (3) The assembly and construction method has high work efficiency. The outfitting and structure are hoisted into place at one time, the construction cycle is short and the cost is low.

[0029] For example, in step S4, in one of the platform mounting plates 720, the number of platform layers 710 is preferably four.

[0030] For example, in step S3, the first positioning welding process is specifically as follows: a first positioning plate is provided on the hull deck 600, one side of the first positioning plate is welded to the hull deck 600, and the other side of the first positioning plate is welded to the bottom of the first pile frame 100 and the bottom of the second pile frame 200. This makes the positions of the first pile frame 100 and the second pile frame 200 more accurate.

[0031] For example, in step S6, the second positioning welding process is specifically as follows: a second positioning plate is provided on the hull deck 600, one side of the second positioning plate is welded to the hull deck 600, and the other side of the second positioning plate is welded to the bottom of the third pile frame 300 and the bottom of the fourth pile frame 400. This makes the positions of the third pile frame 300 and the fourth pile frame 400 more accurate.

[0032] For example, in step S5, before welding and fixing the corresponding platform mounting plate 720 to the outside of the first fixed pile frame 100 and the outside of the second fixed pile frame 200, temporary scaffolding is erected to assist welding, which is more conducive to construction.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A method for assembling and constructing a cross-tooth piling platform, characterized in that, Includes the following steps: Step S1: Provide the first pile fixing frame, the second pile fixing frame, the third pile fixing frame, the fourth pile fixing frame, and multiple platform layers; Step S2: Taking the main hull pile leg cofferdam structure as the center, mark two cross-shaped inspection lines for the first and second fixed pile installations on the hull structure. Step S3: Install the first and second pile fixing frames on the symmetrical sides of the main hull pile leg cofferdam structure, respectively, so that the first and second pile fixing frames are respectively located on the installation inspection line of the first pile fixing frame, and reserve the installation positions of the third and fourth pile fixing frames on the installation inspection line of the second pile fixing frame; then, perform the first positioning welding process to initially fix the first and second pile fixing frames on the hull deck; Step S4: Assemble multiple platform layers on the hull deck along the height direction of the main hull leg cofferdam structure to form multiple platform mounting pieces; sequentially hoist the corresponding platform mounting pieces to the outside of the first and second fixed pile frames. A first adjustment area is reserved between the platform mounting pieces located around the first fixed pile frame and the platform mounting pieces located around the second fixed pile frame at the corresponding installation position on the third fixed pile frame. A second adjustment area is reserved between the platform mounting pieces located around the first and the platform mounting pieces located around the second fixed pile frame at the corresponding installation position on the fourth fixed pile frame. Step S5: Weld and fix the corresponding platform mounting plate to the outside of the first and second fixed pile frames. Step S6: Sequentially hoist the third and fourth fixed pile frames at the center of the main hull leg cofferdam structure, symmetrically install the third and fourth fixed pile frames on both sides of the main hull leg cofferdam structure, and position the third and fourth fixed pile frames on the installation inspection line of the second fixed pile frame; subsequently, perform a second tack welding process to initially fix the third and fourth fixed pile frames to the hull deck, so that the first, second, third, and fourth fixed pile frames form a cross-tooth fixed pile frame; Step S7: Recheck the positioning positions of the first, second, third, and fourth fixed pile frames. Once the requirements are met, weld and fix them to the ship's deck. Step S8: Install the first platform adjustment piece and the second platform adjustment piece at the first adjustment area and the second adjustment area respectively, and connect and weld the first platform adjustment piece and the second platform adjustment piece to the platform mounting piece respectively, forming a closed maintenance platform around the outside of the cross-tooth fixed pile frame; use the maintenance platform to perform welding operations to weld and fix the platform adjustment piece and the corresponding platform mounting piece to the outside of the third fixed pile frame and the outside of the fourth fixed pile frame respectively.

2. The method for assembling and constructing the cross-tooth fixed pile platform according to claim 1, characterized in that, In step S4, the length of the first adjustment area is 200mm~500mm.

3. The method for assembling and constructing the cross-tooth fixed pile platform according to claim 1, characterized in that, In step S4, the length of the second adjustment area is 200mm~500mm.

4. The method for assembling and constructing the cross-tooth fixed pile platform according to claim 1, characterized in that, In step S4, the number of platform layers in one of the platform mounting bodies is four.

5. The method for assembling and constructing the cross-tooth piling platform according to claim 1, characterized in that, In step S3, the first positioning welding process is as follows: a first positioning plate is provided on the hull deck, one side of the first positioning plate is welded to the hull deck, and the other side of the first positioning plate is welded to the bottom of the first pile frame and the bottom of the second pile frame.

6. The method for assembling and constructing the cross-tooth piling platform according to claim 1, characterized in that, In step S6, the second positioning welding process is as follows: a second positioning plate is provided on the hull deck, one side of the second positioning plate is welded to the hull deck, and the other side of the second positioning plate is welded to the bottom of the third and fourth fixed pile frames.

7. The method for assembling and constructing the cross-tooth piling platform according to claim 1, characterized in that, In step S4, the platform mounting plate corresponding to the first fixed pile frame is one or two.

8. The method for assembling and constructing the cross-tooth fixed pile platform according to claim 1, characterized in that, In step S4, the platform mounting plate corresponding to the second fixed pile frame is one or two.

9. The method for assembling and constructing the cross-tooth fixed pile platform according to claim 1, characterized in that, In step S5, before welding and fixing the corresponding platform mounting pieces to the outside of the first and second fixed pile frames, temporary scaffolding is erected to assist in the welding process.

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