Construction method and application of circular tube structure

Abstract

The present application provides a construction method for a circular tube cylinder structure, including assembling the circular tube cylinder structure: assembling the circular tube cylinder structure to include multiple first circular tubes and multiple I-beams to surround a first cylinder structure; setting up the circular tube cylinder structure: measuring the construction site and calibrating the construction position of the first cylinder structure; setting the first cylinder structure to the construction position by means of a vibrating sinking device, and vibrating and sinking it to a designed depth; stabilizing the circular tube cylinder structure: pouring concrete in the first circular tube and the first cylinder structure, and after the concrete is formed, performing construction on top of the circular tube cylinder structure.

Description

Technical Field

[0001] The present application belongs to the technical field of water transport engineering construction, and relates to a construction method and application of a circular tube cylinder structure. Background Art

[0002] Large-diameter cylindrical structures are often used in water transport construction, such as cofferdams and artificial island construction. Chinese application CN103157955A discloses a method for manufacturing a large-diameter steel cylinder, which includes internal transverse ribs and other structures. However, during the installation of the large-diameter steel cylinder, the soil layer creates significant resistance to the inner and outer surfaces of the cylinder wall. Furthermore, as the steel cylinder enters the soil layer, it is difficult to monitor the condition of components such as the transverse ribs, making it impossible to determine whether they are damaged. Consequently, it is difficult to determine the integrity of the entire steel cylinder, which can affect subsequent use. Summary of the Invention

[0003] The purpose of this application is to provide a construction method and application of a circular tube structure, which can be used for the construction of cofferdams, artificial islands and other projects.

[0004] The construction method of the circular tube structure comprises:

[0005] Assembly of a circular tube cylinder structure: The circular tube cylinder structure includes a plurality of first circular tubes and a plurality of I-beams; wherein the I-beams include first and second flanges that are parallel to each other, and webs perpendicularly connect the first and second flanges, respectively; the I-beam is located between two adjacent first circular tubes, and the first and second flanges of the same I-beam are connected to the two adjacent first circular tubes at both ends to form a first cylindrical structure;

[0006] Installation of the cylindrical structure: measuring the construction site and calibrating the construction position of the first cylindrical structure; installing the first cylindrical structure at the construction position by means of a vibrating sinking device, and vibrating and sinking the first cylindrical structure to the designed depth;

[0007] Stabilization of the circular tube structure: concrete is poured inside the first circular tube and the first tube structure. After the concrete is formed, construction is carried out on top of the circular tube structure.

[0008] Optionally, in the assembly step of the circular tube cylindrical structure, the length of the first circular tube is approximately equal to the length of the I-beam; the length direction of the I-beam and its web is approximately parallel to the axial direction of the first circular tube; the width of the web is 30%-50% of the diameter of the first circular tube.

[0009] Optionally, in the step of laying the circular tube cylinder structure, before laying, an annular replacement structure is installed on the top of the circular tube cylinder structure to contact the vibrating sinking equipment.

[0010] Optionally, in the step of assembling the circular tube structure, the first cylindrical structure is a cylindrical structure; the circular tube structure further includes a plurality of second cylindrical tubes and a second cylindrical structure; wherein the second cylindrical tubes have a smaller diameter than the first cylindrical tube, are fewer in number than the first cylindrical tube, and are spaced apart on the first cylindrical structure, located between two adjacent first cylindrical tubes to replace the I-beams therein; the second cylindrical tubes have an extension extending out of the first cylindrical structure; the second cylindrical structure is an annular concrete cylindrical structure, and is provided with a plurality of long holes matching the second cylindrical tubes at intervals along the circumference. The step of setting up the circular tube structure further includes: after the first cylindrical structure is vibrated to a designed depth, installing the second cylindrical structure above the first cylindrical structure so that the extension of the second cylindrical tube is inserted into the long holes of the second cylindrical structure, thereby forming the circular tube structure. The step of stabilizing the circular tube structure includes: first pouring concrete into the first cylindrical tube, and after the second cylindrical structure is installed above the first cylindrical structure, pouring concrete into the circular tube structure; after the concrete is formed, subsequent construction is carried out above the circular tube structure.

[0011] Optionally, the step of installing the circular tube cylinder structure also includes: installing a replacement structure on the top of the second circular tube to contact the vibration and sinking equipment, and providing connecting rods between each second circular tube for strengthening the second circular tube; after the first cylinder structure is vibrated and sunk to the designed depth, removing the replacement structure and the connecting rods, and then installing the second cylinder structure.

[0012] In some embodiments of the present application, the first circular tube and the second circular tube are both steel tubes; the first cylindrical structure and the second cylindrical structure are both hollow circular rings, the outer diameters of the two are roughly equal, and the thickness of the second cylindrical structure is roughly equal to the diameter of the first circular tube; to form the circular tube cylindrical structure.

[0013] In some embodiments of the present application, the center of the first circular tube, the center of the I-beam, and the center of the second circular tube are approximately located on the same circumference of the circular tube cylindrical structure.

[0014] In some embodiments of the present application, the outer diameter of the first cylindrical structure is 15-30 mm, the diameter of the first circular tube is 400-600 mm, and the diameter of the second circular tube is 200-300 mm.

[0015] In some embodiments of the present application, at least one circle of reinforcement belt is provided on the outer side and / or inner side of the first cylindrical structure; the reinforcement belt is an annular steel strip.

[0016] In some embodiments of the present application, a conical plug is provided at the bottom of the first circular tube, and the upper diameter of the plug is slightly larger than the diameter of the first circular tube.

[0017] In some embodiments of the present application, the bottoms of some first circular tubes are slightly shorter than the bottoms of other first circular tubes, thereby forming a gap.

[0018] The second embodiment of the present application provides an application of a construction method of a circular tube structure in a water conservancy project, wherein the water conservancy project includes but is not limited to an artificial island and a cofferdam. The construction method of the circular tube structure is the construction method of the circular tube structure described in any of the above embodiments.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] At least one embodiment of the present application provides a construction method for a large-diameter circular tubular structure. By utilizing steel pipes and I-beams to form a large-diameter cylindrical structure, this method can replace existing large-diameter steel cylindrical structures. The structure itself exhibits excellent integrity, effectively overcoming the issue of unclear post-installation status in existing steel cylindrical structures. Furthermore, the construction method for the circular tubular structure provided by the present application is simple and easy to operate.

[0021] At least one embodiment of the present application provides a construction method for a large-diameter circular tubular structure. The upper portion of the structure utilizes a concrete cylinder, effectively reducing steel usage and, through calculation, lowering construction costs. The use of the concrete cylinder reduces the weight of the circular tubular structure, lowers the rated power requirement of the vibrating sinking equipment, and reduces construction difficulty, while also improving the durability of the concrete structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective view of a cylindrical tube structure according to an embodiment;

[0023] Figure 2 This is a partially enlarged three-dimensional view of a circular tube structure according to an embodiment;

[0024] Figure 3 This is a partial enlarged top view of a circular tube structure according to an embodiment;

[0025] Figure 4 is a schematic diagram of a reinforcement band according to one embodiment;

[0026] Figure 5 is a schematic diagram of a notch in one embodiment;

[0027] Figure 6 This is a schematic diagram of the installation of a circular tube structure according to an embodiment;

[0028] Figure 7 is a perspective view of a cylindrical tube structure according to an embodiment;

[0029] Figure 8 This is a front view of a circular tube structure according to an embodiment;

[0030] Figure 9 This is a schematic diagram of the installation of a circular tube structure according to an embodiment;

[0031] Numbers in the figure: 1 first round tube, 2 I-beam, 3 first cylindrical structure, 4 reinforcement belt, 5 conical plug, 6 notch, 7 replacement structure, 8 second round tube, 801 extension part, 9 second cylindrical structure, 901 long hole, 10 connecting rod. DETAILED DESCRIPTION

[0032] The technical solution of the present application is described in detail below in conjunction with specific embodiments. However, it should be understood that without further description, the elements, structures and features in one embodiment may also be beneficially combined with other embodiments.

[0033] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features.

[0034] In the description of this application, it should be understood that the terms "upper", "lower", "bottom", "inner" and the like indicate positions or location relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing this application and simplifying the description, and does 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 should not be understood as a limitation on this application.

[0035] In the description of this application, 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; they can refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0036] The first embodiment of the present application provides a construction method of a circular tube structure, comprising the following steps:

[0037] (1) Assembly of the cylindrical structure

[0038] like Figure 1-3As shown, the assembled circular tubular structure includes multiple first circular tubes 1 and multiple I-beams 2. The first circular tubes 1 are steel tubes. The I-beams 2 have substantially parallel first and second flanges 201, 202, with webs 203 perpendicularly connecting the first and second flanges 201, 202. The I-beams 2 are positioned between two adjacent first circular tubes 1, with the first and second flanges 201, 202 of the same I-beam 2 connected to the adjacent first circular tubes 1 at their ends. The first circular tubes 1 and I-beams 2 form a first cylindrical structure 3, i.e., the circular tubular structure of the first embodiment.

[0039] like Figure 4 As shown, the first cylindrical structure 3 is preferably a large-diameter cylindrical structure, with an outer diameter R of 15-30m (for example, 16m, 18m, 20m, 22m, 25m, 28m, etc.), and an inner diameter of R-r1 (r1 is the diameter of the first circular tube 1, which is also the thickness of the first cylindrical structure 3); at this time, the center of the first circular tube 1 and the center of the I-beam 2 (the center of the web 203) are roughly located on the same circumference of the first cylindrical structure 3.

[0040] In the vertical direction, the length of the first circular tube 1 is substantially equal to the length of the I-beam 2. The length direction of the web 203 is substantially parallel to the axial direction of the first circular tube 1; the width W of the web 203 is 30%-50% (e.g., 30%, 32%, 35%, 38%, 40%, 45%, 48%, etc.) of the diameter r1 of the first circular tube 1, that is, the distance W between the first flange 201 and the second flange 202 is 30%-50% (e.g., 30%, 32%, 35%, 38%, 40%, 45%, 48%, etc.) of the diameter r1 of the first circular tube 1. Figure 3 ); making the connection between each first circular tube 1 using the I-beam 2 more secure and reliable. Optionally, the diameter r1 of the first circular tube 1 is 400-600 mm (e.g., 420 mm, 450 mm, 480 mm, 500 mm, 520 mm, 550 mm, 580 mm, etc.). The ends of the first flange 201 and the second flange 202 can be fixedly connected to the first circular tube 1 by welding, thereby forming four substantially parallel vertical welds.

[0041] I-beams 2 are easily manufactured and have excellent tensile strength and structural stability. Using I-beams 2 to connect the first circular tubes 1 ensures a secure connection between the first circular tubes 1, and the resulting cylindrical structure is also quite strong, eliminating the risk of damage to the overall structure when subsequently driven into the foundation. This embodiment, through the arrangement of the first circular tubes 1 and the circular first cylindrical structure, forms a double-layer circular structure, stabilizing the entire cylindrical structure and facilitating subsequent construction.

[0042] like Figure 4As shown, at least one reinforcing band 4 is provided on the outside and / or inside of the first cylindrical structure 3. The reinforcing band 4 can be an annular steel strip in a strip-like structure, with multiple turns spaced apart along the vertical direction. The reinforcing band 4 is connected to the first circular tube 1, for example, by welding to the first circular tube 1, thereby enhancing the integrity of the cylindrical structure and strengthening it.

[0043] A conical plug 5 is provided at the bottom of the first circular tube 1 , and the upper diameter of the plug 5 is slightly larger than the diameter of the first circular tube 1 , thereby reducing resistance and facilitating the subsequent installation of the circular tube structure.

[0044] like Figure 5 As shown, the bottom of some first circular tubes 1 is slightly shorter than the bottom of other first circular tubes 1, thereby forming a gap 6; the setting of the gap can reduce the amount of the entire circular tube body structure buried in the soil during subsequent installation, reduce resistance, and facilitate installation.

[0045] The assembly steps of the cylindrical tube structure can be completed in the factory by welding and other methods, and then transported to the construction site when ready for installation. Therefore, its construction is simpler and provides great convenience for subsequent installation.

[0046] (2) Installation of cylindrical structure

[0047] The construction site is measured to mark the construction position of the first cylindrical structure 3 ; the first cylindrical structure 3 is driven to the construction position by a vibrating sinking device (such as a vibrating hammer group) and vibrated and sunk to the designed depth of the first cylindrical structure 3 .

[0048] (3) Stability of the cylindrical structure

[0049] Concrete is poured in the first circular tube 1 and the first cylindrical structure 3. After the concrete is formed, construction (such as building a platform, setting up equipment, etc.) is carried out above the circular tube and cylindrical structure.

[0050] The above steps are merely descriptive steps, and in actual construction, the order can be adjusted according to actual needs. Therefore, the order of the steps does not constitute an absolute limitation to this application.

[0051] In the step (2), before the installation, the annular replacement structure 7 can be installed on the top of the cylindrical structure (such as Figure 6 ) and can contact the vibrating sinking equipment (such as a vibrating hammer group) to avoid damage to the cylindrical structure itself during driving. The replacement driving structure 7 can adopt the replacement driving structure in the prior art, such as the replacement driving structure disclosed in CN114457750A. After the first cylindrical structure 3 is vibrated and sunk to the designed depth, the replacement driving structure 7 is removed.

[0052] In the step (1), the circular tube cylinder structure further includes a plurality of second circular tubes 8 and a second cylinder structure 9, such as Figure 1 , Figure 7 and Figure 8 As shown. Wherein, the second circular tube 8 is a steel tube. The diameter of the second circular tube 8 is smaller than that of the first circular tube 1. For example, the diameter of the second circular tube 8 is 200-300mm (for example, 220mm, 250mm, 280mm, etc.); if the diameter of the first circular tube 1 is 500mm, the diameter of the second circular tube 8 is 200mm. The number of the second circular tubes 8 is less than that of the first circular tubes 1, and they are distributed at intervals on the first cylindrical structure 3, located between two adjacent first circular tubes 1 to replace the I-beam 2 there; for example, the two sides of the second circular tube 8 can be connected to the two adjacent first circular tubes 1 by welding. The second circular tube 8 is longer than the first circular tube 1 and the I-beam 2, and has an extension 801 extending out of the first cylindrical structure 3. When the first cylindrical structure 3 is a cylindrical structure, the centers of the first circular tube 1 and the second circular tube 8 are located on the same circumference of the first cylindrical structure 3. The second cylindrical structure 9 is an annular concrete cylindrical structure, and its thickness is roughly equal to the diameter r1 of the first cylindrical tube 1. The second cylindrical structure 9 is provided with a plurality of long holes 901 along the circumference that match the extension portion 801 of the second circular tube 8, which can be through holes. The step (2) also includes: after the first cylindrical structure 3 is vibrated and sunk to the designed depth, the second cylindrical structure 9 is installed above the first cylindrical structure 3, so that the extension portion 801 of the second circular tube 8 is inserted into the long holes 901 of the second cylindrical structure 9, forming a circular tube cylindrical structure of the second embodiment. The step (3) includes: first pouring concrete in the first circular tube 1, and after the second cylindrical structure 9 is installed above the first cylindrical structure 3, pouring concrete in the circular tube cylindrical structure; after the concrete is formed, subsequent construction is carried out above the circular tube cylindrical structure.

[0053] In this embodiment, the second cylindrical structure 9 is coaxially arranged with the first cylindrical structure 3 and is a hollow structure of approximately equal thickness. By providing the second cylindrical structure 9, the cylindrical structure is made into a composite structure of steel pipe and concrete. While maintaining the same overall height, the concrete cylindrical structure can partially replace the first cylindrical structure 3, thereby saving the height and steel. While maintaining the same engineering strength, the economic efficiency is also improved.

[0054] In step (2) of this embodiment, Figure 9 As shown, the replacement structure 7 is installed on the top of the second circular tube 8, and connecting rods 10 are provided between each second circular tube 8 to reinforce the second circular tube 8. The vibrating sinking equipment is in contact with the replacement structure 7, which increases stability during the sinking process. After the first cylindrical structure 3 is vibrated and sunk to the designed depth, the replacement structure 7 and connecting rods 10 are removed, and then the second cylindrical structure 9 is installed.

[0055] A second embodiment of the present application provides an application of the construction method of a circular tube structure described in any of the above technical solutions in a water conservancy project, wherein the water conservancy project includes but is not limited to an artificial island and a cofferdam.

[0056] The described embodiments are merely descriptions of the preferred embodiments of the present application and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements made to the technical solutions of the present application by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present application.

Claims

1. A construction method for a circular tube structure, characterized in that: include: Assembly of a circular tube cylinder structure: The circular tube cylinder structure includes a plurality of first circular tubes and a plurality of I-beams; wherein the I-beams include a first flange and a second flange that are parallel to each other, and a web connecting the first flange and the second flange respectively; the I-beam is located between two adjacent first circular tubes, and the first flange and the second flange of the same I-beam are connected to the two adjacent first circular tubes at both ends to surround the first cylindrical structure; Installation of the cylindrical structure: measuring the construction site and calibrating the construction position of the first cylindrical structure; installing the first cylindrical structure at the construction position by means of a vibrating sinking device, and vibrating and sinking the first cylindrical structure to the designed depth; Stabilization of the circular tube structure: pour concrete inside the first circular tube and the first cylindrical structure. After the concrete is formed, construction is carried out on top of the circular tube structure. In the step of assembling the circular tube cylinder structure, the first cylinder structure is a cylindrical structure; the circular tube cylinder structure further includes a plurality of second circular tubes and a second cylinder structure; wherein the second circular tubes have a smaller diameter than the first circular tubes, are less in number than the first circular tubes, and are distributed at intervals on the first cylinder structure, located between two adjacent first circular tubes to replace the I-beams there; the second circular tubes have an extension extending out of the first cylindrical structure; the second cylindrical structure is an annular concrete cylindrical structure, and is provided with a plurality of long holes matching the second circular tubes at intervals along the circumference; The step of laying the circular tube structure further includes: after the first tube structure is vibrated and sunk to a designed depth, installing the second tube structure above the first tube structure so that the extension of the second circular tube is inserted into the long hole of the second tube structure to form the circular tube structure; The steps for stabilizing the circular tube structure include: first pouring concrete in the first circular tube, and after the second tube structure is installed above the first tube structure, pouring concrete in the circular tube structure; after the concrete is formed, subsequent construction is carried out above the circular tube structure.

2. The construction method of the circular tube structure according to claim 1, characterized in that: During the assembly steps of the circular tube structure, the length of the first circular tube is roughly equal to the length of the I-beam; the length direction of the I-beam and its web is roughly parallel to the axial direction of the first circular tube; the width of the web is 30%-50% of the diameter of the first circular tube.

3. The construction method of the circular tube structure according to claim 2, characterized in that: In the step of laying the circular tube body structure, before laying, the annular replacement structure is installed on the top of the circular tube body structure to contact with the vibrating sinking equipment.

4. The construction method of the circular tube structure according to claim 1, characterized in that: The step of installing the circular tube cylinder structure also includes: installing a replacement structure on the top of the second circular tube to contact the vibration and sinking equipment, and connecting rods for strengthening the second circular tubes are provided between each second circular tube; after the first cylinder structure is vibrated and sunk to the designed depth, the replacement structure and the connecting rods are removed, and then the second cylinder structure is installed.

5. The construction method of the circular tube structure according to claim 1, characterized in that: The first circular tube and the second circular tube are both steel tubes; the first cylindrical structure and the second cylindrical structure are both hollow circular rings, the outer diameters of the two are roughly equal, and the thickness of the second cylindrical structure is roughly equal to the diameter of the first circular tube; to form the circular tube cylindrical structure.

6. The construction method of the circular tube structure according to claim 5, characterized in that: The center of the first circular tube, the center of the I-beam and the center of the second circular tube are roughly located on the same circumference of the circular tube cylindrical structure; at least one circle of reinforcement belt is provided on the outer side and / or inner side of the first cylindrical structure; the reinforcement belt is an annular steel strip.

7. The construction method of the circular tube structure according to claim 5, characterized in that: The outer diameter of the first cylindrical structure is 15-30 mm, the diameter of the first circular tube is 400-600 mm, and the diameter of the second circular tube is 200-300 mm.

8. The construction method of a circular tube structure according to any one of claims 1 to 3, characterized in that: A conical plug is provided at the bottom of the first circular tube, and the upper diameter of the plug is slightly larger than the diameter of the first circular tube; the bottoms of some first circular tubes are slightly shorter than the bottoms of other first circular tubes, thereby forming a gap.

9. Use of the construction method of the circular tube structure according to any one of claims 1 to 8 in a water conservancy project, wherein the water conservancy project comprises an artificial island and a cofferdam.

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