Cross-tooth pile fixing frame platform assembling and building method

Abstract

The invention discloses a cross-tooth pile fixing frame platform assembling and building method. The method comprises the following steps that S1, a first pile fixing frame, a second pile fixing frame, a third pile fixing frame, a fourth pile fixing frame and a plurality of platform layers are provided; s2, assigning a pile fixing frame installation inspection line; s3, the first pile fixing frame and the second pile fixing frame are installed; s4, the platform layers are assembled to form a plurality of platform installation sheet bodies, then the platform installation sheet bodies are hoisted in sequence, and adjusting areas are reserved; s5, the corresponding platform mounting sheet bodies are welded and fixed to the outer side of the first pile fixing frame and the outer side of the second pile fixing frame; s6, a third pile fixing frame and a fourth pile fixing frame are mounted; s7, all the pile fixing frames are welded and fixed to the deck of the ship body; s8, adjusting sheet bodies are installed in the corresponding adjusting areas, and an overhauling platform is formed; and the corresponding adjusting sheet bodies are welded and fixed to the third pile fixing frame and the fourth pile fixing frame through the overhauling platform. According to the method, repeated erection in the construction process can be avoided, and the installation efficiency can be improved while the construction period in the ship dock is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, and in particular to a method for assembling and constructing a cross-tooth pile frame platform. Background Art

[0002] The lifting system is the core system for a self-elevating platform to achieve the lifting and lowering of the platform. Installing an electric-driven rack and pinion lifting system on board is one of the mainstream installation methods. The cross-tooth lifting system has higher stability and higher safety. The current mainstream construction method is to assemble the maintenance platform around the lifting foundation structure (hereinafter referred to as the lifting foundation) after it is welded to the hull. This method requires repeated scaffolding, which prolongs the overall construction period. That is, after each lifting foundation is positioned, the scaffolding is adjusted, welded, dismantled, the maintenance platform is assembled, the scaffolding is welded, and dismantled. However, this assembly method has the following disadvantages: (1) At this time, the ship has already entered the dock, and repeated operations take up a long installation period in the dock, which is not conducive to the shipyard to shorten the dock production period; (2) The operation involves high-altitude operations and cross operations; (3) The scaffolding needs to be modified or dismantled according to the on-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

[0003] The purpose of the present invention is to provide a method for assembling and constructing a cross-tooth pile frame platform, which can avoid repeated framing during the construction process, resulting in production bottlenecks, and can improve installation efficiency while shortening the construction period in the ship dock.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A method for assembling and constructing a cross-tooth pile frame platform comprises the following steps:

[0006] Step S1: providing a first pile fixing frame, a second pile fixing frame, a third pile fixing frame, a fourth pile fixing frame and a plurality of platform layers;

[0007] Step S2: With the main hull leg well structure as the center, two cross-shaped first and second pile frame installation inspection lines are marked on the hull structure;

[0008] Step S3: Installing the first and second pile frames on symmetrical sides of the main hull leg well structure, respectively, so that the first and second pile frames are respectively located on the first pile frame installation inspection line, and reserving installation positions for the third and fourth pile frames on the second pile frame installation inspection line; then, performing a first tack welding process to preliminarily fix the first and second pile frames on the hull deck.

[0009] Step S4: assembling a plurality of platform layers on the hull deck along the height direction of the main hull pile leg surrounding well structure to form a plurality of platform installation sheets; sequentially hoisting the corresponding platform installation sheets to the outer side of the first pile frame and the outer side of the second pile frame, with a first adjustment area reserved at the corresponding installation position of the third pile frame between the platform installation sheets arranged around the first pile frame and the platform installation sheets arranged around the second pile frame, and a second adjustment area reserved at the corresponding installation position of the fourth pile frame between the platform installation sheets arranged around the first pile frame and the platform installation sheets arranged around the second pile frame;

[0010] Step S5: Welding and fixing the corresponding platform installation sheet to the outer side of the first pile fixing frame and the outer side of the second pile fixing frame;

[0011] Step S6: sequentially hoisting the third and fourth pile frames at the center of the main hull leg well structure, symmetrically installing the third and fourth pile frames on symmetrical sides of the main hull leg well structure, and positioning the third and fourth pile frames on a second pile frame installation inspection line, respectively; then, performing a second tack welding process to preliminarily fix the third and fourth pile frames on the hull deck, respectively, so that the first, second, third, and fourth pile frames form a cross-tooth pile frame;

[0012] Step S7: rechecking the positioning positions of the first, second, third and fourth pile fixing frames, and welding and fixing them to the hull deck if they meet the requirements;

[0013] Step S8: Replacing the first platform adjustment sheet and the second platform adjustment sheet at the first adjustment area and the second adjustment area respectively, and making the first platform adjustment sheet and the second platform adjustment sheet docked with the platform mounting sheet respectively and welded and fixed, so as to form a closed maintenance platform around the outer side of the cross-tooth pile fixing frame; using the maintenance platform to perform welding operations, the platform adjustment sheet and the corresponding platform mounting sheet are respectively welded and fixed to the outer side of the third pile fixing frame and the outer side of the fourth pile fixing frame.

[0014] As a preferred solution of the present invention, in step S4, the length of the first adjustment area is 200 mm to 500 mm.

[0015] As a preferred solution of the present invention, in step S4, the length of the second adjustment area is 200 mm to 500 mm.

[0016] As a preferred solution of the present invention, in step S4, in one platform installation sheet, the number of the platform layers is four.

[0017] As a preferred embodiment of the present invention, in step S3, the first positioning welding process is as follows: a first positioning clamp is provided on the hull deck, one side of the first positioning clamp is welded to the hull deck, and the other side of the first positioning clamp is welded to the bottom of the first pile frame and the bottom of the second pile frame.

[0018] As a preferred embodiment of the present invention, in step S6, the second positioning welding process is as follows: a second positioning clamp is provided on the hull deck, one side of the second positioning clamp is welded to the hull deck, and the other side of the second positioning clamp is welded to the bottom of the third pile frame and the bottom of the fourth pile frame.

[0019] As a preferred solution of the present invention, in step S4, there is one or two platform installation plates corresponding to the first pile fixing frame.

[0020] As a preferred solution of the present invention, in step S4, there is one or two platform installation plates corresponding to the second pile fixing frame.

[0021] As a preferred solution of the present invention, in step S5, before the corresponding platform installation pieces are welded and fixed to the outer sides of the first and second pile fixing frames, a temporary scaffolding is set up to assist in welding.

[0022] The cross-tooth pile frame platform assembly and construction method provided by the present invention has the following advantages compared with the prior art:

[0023] The present invention splits the cross-tooth pile frame and the inspection platform into multiple pieces, which are successively installed and welded to the hull deck. Moreover, after the inspection platform is installed, the inspection platform can be used instead of the scaffolding to perform welding operations on the pile frame. Compared with the prior art method of welding the cross-tooth pile frame to the hull as a whole and then assembling the inspection platform around it, the present invention has the following advantages: (1) It can greatly reduce the number of times of erecting and dismantling the frame during the construction process, saving the construction period and resources in the dock; (2) The assembly and construction method is highly safe, and the construction personnel can assemble the platform layer on the ground (i.e., on the hull deck) to form the platform installation piece, and there is no other work interference around, so the construction difficulty is small; (3) The assembly and construction method has high operation efficiency, and the outfitting and structure are hoisted into place at one time, with a short construction period and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0025] Figure 1 It is a schematic diagram of marking the inspection line for the installation of the pile frame on the hull structure;

[0026] Figure 2 Schematic diagram of the installation of the first and second pile fixing frames on the main hull leg well structure (main view);

[0027] Figure 3 Schematic diagram of the installation of the first and second pile fixing frames on the main hull leg well structure (viewed from above);

[0028] Figure 4 Schematic diagram of the installation of the platform mounting plate on the first and second fixing pile frames (main view);

[0029] Figure 5 Schematic diagram of the installation of the platform mounting plate on the first and second fixing pile frames (viewed from above);

[0030] Figure 6 This is a schematic diagram of the installation of the third pile frame on the main hull leg well structure (looking down);

[0031] Figure 7 This is a schematic diagram of the installation of the fourth pile frame on the main hull pile leg well structure (looking down).

[0032] Markings in the figure:

[0033] First pile frame 100; second pile frame 200; third pile frame 300; fourth pile frame 400; main hull pile leg well structure 500; first pile frame installation inspection line 501; second pile 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 DESCRIPTION

[0034] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such 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 the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0036] See also Figures 1 to 7 The embodiment of the present invention provides a method for assembling and constructing a cross-tooth pile frame platform, which includes the following steps:

[0037] Step S1 : providing a first pile frame 100 , a second pile frame 200 , a third pile frame 300 , a fourth pile frame 400 and a plurality of platform layers 710 .

[0038] Step S2: With the main hull leg well structure 500 as the center, two cross-shaped first pile frame installation inspection lines 501 and second pile frame installation inspection lines 502 are marked on the hull structure.

[0039] Step S3: The first pile frame 100 and the second pile frame 200 are respectively installed on the symmetrical sides of the main hull pile leg well structure 500, so that the first pile frame 100 and the second pile frame 200 are respectively located on the first pile frame installation inspection line 501, and the installation positions of the third pile frame 300 and the fourth pile frame 400 are reserved on the second pile frame installation inspection line 502; then, a first tack welding process is performed to preliminarily fix the first pile frame 100 and the second pile frame 200 on the hull deck 600.

[0040] Step S4: Assemble multiple platform layers 710 on the hull deck 600 along the height direction of the main hull pile leg well structure 500 to form multiple platform installation pieces 720: hoist the corresponding platform installation pieces 720 to the outside of the first pile frame 100 and the outside of the second pile frame 200 in sequence; a first adjustment area 730 is reserved at the corresponding installation position of the third pile frame 300 between the platform installation pieces 720 arranged around the first pile frame 100 and the platform installation pieces 720 arranged around the second pile frame 200, and a second adjustment area 740 is reserved at the corresponding installation position of the fourth pile frame 400 between the platform installation pieces 720 arranged around the first pile frame 100 and the platform installation pieces 720 arranged around the second pile frame 200. It should be noted that in this step, one or two platform mounting plates 720 are provided for the first pile frame 100, and one or two platform mounting plates 720 are provided for the second pile frame 200. The provision of the first adjustment area 730 and the second adjustment area 740 allows for the subsequent installation of the third and fourth pile frames 300 and 400, thereby preventing interference between components. In this embodiment, the length of the first adjustment area 730 is preferably 200 mm to 500 mm, and the length of the second adjustment area 740 is preferably 200 mm to 500 mm.

[0041] Step S5 : welding and fixing the corresponding platform mounting plates 720 to the outer sides of the first and second pile fixing frames 100 and 200 .

[0042] Step S6: hoist the third pile frame 300 and the fourth pile frame 400 in sequence at the center position of the main hull leg well structure 500, symmetrically install the third pile frame 300 and the fourth pile frame 400 on both sides of the main hull leg well structure 500, and make the third pile frame 300 and the fourth pile frame 400 respectively located on the second pile frame installation inspection line 502; then, perform a second tack welding process to preliminarily fix the third pile frame 300 and the fourth pile frame 400 on the hull deck 600, so that the first pile frame 100, the second pile frame 200, the third pile frame 300 and the fourth pile frame 400 form a cross-tooth pile frame.

[0043] Step S7: rechecking the positioning 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 , and welding and fixing them to the hull deck 600 if they meet the requirements.

[0044] Step S8: Replacing the first platform adjustment sheet and the second platform adjustment sheet at the first adjustment area 730 and the second adjustment area 740 respectively, and making the first platform adjustment sheet and the second platform adjustment sheet docked with the platform mounting sheet 720 and welded to form a closed maintenance platform 700 around the outer side of the cross-tooth pile fixing frame; using the maintenance platform 700 to perform welding operations, the platform adjustment sheet and the corresponding platform mounting sheet 720 are welded to the outer side of the third pile fixing frame 300 and the outer side of the fourth pile fixing frame 400 respectively.

[0045] The cross-tooth pile frame platform assembly and construction method of the present invention is to split the cross-tooth pile frame and the inspection platform 700 into multiple pieces, which are successively installed and welded to the hull deck 600. Moreover, after the inspection platform 700 is installed, the inspection platform 700 can be used instead of the scaffolding to perform welding operations on the pile frame. Compared with the prior art method of welding the cross-tooth pile frame to the hull as a whole and then assembling the inspection platform 700 around it, the method has the following advantages: (1) It can greatly reduce the number of times of erecting and dismantling the frame during the construction process, saving the construction period and resources in the dock; (2) The assembly and construction method is highly safe, and the construction personnel can assemble the platform layer 710 on the ground (i.e., on the hull deck 600) to form the platform installation piece 720, and there is no other work interference around, so the construction difficulty is small; (3) The assembly and construction method has high operation efficiency, and the outfitting and structure are hoisted into place at one time, with a short construction period and low cost.

[0046] For example, in step S4, in one platform installation sheet 720, the number of the platform layers 710 is preferably four.

[0047] Exemplarily, in step S3, the first positioning welding process is specifically performed as follows: a first positioning clamp is provided on the hull deck 600, one side of the first positioning clamp is welded to the hull deck 600, and the other side of the first positioning clamp is welded to the bottom of the first pile frame 100 and the bottom of the second pile frame 200, thereby making the positions of the first pile frame 100 and the second pile frame 200 more accurate.

[0048] Exemplarily, in step S6, the second positioning welding process is specifically performed as follows: a second positioning clamp is provided on the hull deck 600, one side of the second positioning clamp is welded to the hull deck 600, and the other side of the second positioning clamp is welded to the bottom of the third pile frame 300 and the bottom of the fourth pile frame 400, thereby making the positions of the third pile frame 300 and the fourth pile frame 400 more accurate.

[0049] For example, in step S5 , before the corresponding platform installation pieces 720 are welded and fixed to the outer sides of the first and second pile fixing frames 100 and 200 , a temporary scaffolding is set up to assist in welding, which is more conducive to construction.

[0050] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A method for assembling and constructing a cross-tooth pile frame platform, characterized in that: The following steps are involved: Step S1: providing a first pile fixing frame, a second pile fixing frame, a third pile fixing frame, a fourth pile fixing frame and a plurality of platform layers; Step S2: With the main hull leg well structure as the center, two cross-shaped first and second pile frame installation inspection lines are marked on the hull structure; Step S3: Installing the first and second pile frames on symmetrical sides of the main hull leg well structure, respectively, so that the first and second pile frames are respectively located on the first pile frame installation inspection line, and reserving installation positions for the third and fourth pile frames on the second pile frame installation inspection line; then, performing a first tack welding process to preliminarily fix the first and second pile frames on the hull deck. Step S4: assembling a plurality of platform layers on the hull deck along the height direction of the main hull pile leg surrounding well structure to form a plurality of platform installation sheets; sequentially hoisting the corresponding platform installation sheets to the outer side of the first pile frame and the outer side of the second pile frame, with a first adjustment area reserved at the corresponding installation position of the third pile frame between the platform installation sheets arranged around the first pile frame and the platform installation sheets arranged around the second pile frame, and a second adjustment area reserved at the corresponding installation position of the fourth pile frame between the platform installation sheets arranged around the first pile frame and the platform installation sheets arranged around the second pile frame; Step S5: Welding and fixing the corresponding platform installation sheet to the outer side of the first pile fixing frame and the outer side of the second pile fixing frame; Step S6: sequentially hoisting the third and fourth pile frames at the center of the main hull leg well structure, symmetrically installing the third and fourth pile frames on symmetrical sides of the main hull leg well structure, and positioning the third and fourth pile frames on a second pile frame installation inspection line, respectively; then, performing a second tack welding process to preliminarily fix the third and fourth pile frames on the hull deck, respectively, so that the first, second, third, and fourth pile frames form a cross-tooth pile frame; Step S7: rechecking the positioning positions of the first, second, third and fourth pile fixing frames, and welding and fixing them to the hull deck if they meet the requirements; Step S8: Replacing the first platform adjustment sheet and the second platform adjustment sheet at the first adjustment area and the second adjustment area respectively, and making the first platform adjustment sheet and the second platform adjustment sheet docked with the platform mounting sheet respectively and welded and fixed, so as to form a closed maintenance platform around the outer side of the cross-tooth pile fixing frame; using the maintenance platform to perform welding operations, the platform adjustment sheet and the corresponding platform mounting sheet are respectively welded and fixed to the outer side of the third pile fixing frame and the outer side of the fourth pile fixing frame.

2. The cross-tooth pile frame platform assembly and construction method according to claim 1, characterized in that: In step S4, the length of the first adjustment area is 200 mm to 500 mm.

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

4. The cross-tooth pile frame platform assembly and construction method according to claim 1, characterized in that: In the step S4, in one platform installation sheet, the number of the platform layers is four.

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

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

7. The cross-tooth pile frame platform assembly and construction method according to claim 1, characterized in that: In the step S4, the platform installation plates corresponding to the first pile fixing frame are provided with one or two.

8. The cross-tooth pile frame platform assembly and construction method according to claim 1, characterized in that: In step S4, the second pile fixing frame may be provided with one or two platform mounting plates corresponding to the second pile fixing frame.

9. The cross-tooth pile frame platform assembly and construction method according to claim 1, characterized in that: In step S5, before the corresponding platform installation pieces are welded and fixed to the outer sides of the first and second pile fixing frames, a temporary scaffolding is set up to assist in welding.

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