Rapid construction system shared by bearing platform construction cofferdam and formwork

Abstract

The rapid construction system shared by the bearing platform construction cofferdam and the formworks comprises a plurality of pipe piles, the formworks are fixed to the inner sides of the pipe piles, the multiple formworks are spliced to define a complete and closed bearing platform operation space, first lock catches are arranged on the first sides of the pipe piles, and second lock catches are arranged on the second sides of the pipe piles; every two adjacent pipe piles are connected through buckling of the first lock catches and the second lock catches, the adjacent first lock catches, the second lock catches, the two pipe piles and the two formworks jointly form partition cavities, and plugging materials are arranged in the partition cavities. The construction method has the beneficial effects that according to the foundation size and the construction progress, overall planning and design of the cofferdam are conducted in advance, modular construction is conducted outside the bearing platform protection layer, and the construction efficiency is improved; used materials are easy to obtain, manufacturing and mounting are simple, dismounting is flexible and convenient, other materials can be repeatedly used, and the material cost is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of underwater bridge pedestal construction, and specifically relates to a rapid construction system that uses a cofferdam and a formwork for pedestal construction, and is a method for integrally forming and constructing a cofferdam and a pedestal formwork. Background Art

[0002] In bridge construction, underwater caps are often used. Common construction methods include steel casing and other construction techniques. The traditional method requires transporting the steel formwork to the cap pouring site, assembling it into a steel casing, and then sinking the steel casing to the designed elevation to form an underwater working platform, and then pouring concrete to form an underwater cap. This method requires repeated transportation, assembly, and disassembly of steel formwork on the water surface, which requires a large amount of steel and high cost. The construction process is greatly affected by the weather and is inefficient. Utility Model Content

[0003] The purpose of the present application is to provide a rapid construction system that uses a cofferdam and a formwork for foundation construction, thereby solving the problems of low efficiency and high cost of existing underwater foundation operations.

[0004] The purpose of this application is achieved through the following technical solutions:

[0005] A rapid construction system for a foundation construction cofferdam and a template, comprising a plurality of pipe piles, templates being fixed on the inner sides of the pipe piles, the plurality of templates being spliced ​​to form a completely closed foundation operation space, a first lock buckle being provided on the first side of the pipe piles, a second lock buckle being provided on the second side of the pipe piles, two adjacent pipe piles being connected by the engagement of the first lock buckle and the second lock buckle, the adjacent first lock buckle, the second lock buckle, the two pipe piles and the two templates forming a compartment together, and a plugging material being provided in the compartment.

[0006] Furthermore, the platform working space is rectangular, circular, polygonal or oblong.

[0007] Furthermore, the pipe pile is a circular pipe structure, a rectangular pipe structure or a polygonal prism pipe structure.

[0008] Furthermore, the template is a straight plate structure, a folded plate structure or an arc structure.

[0009] Furthermore, the template is welded on the pipe pile.

[0010] Furthermore, the first lock buckle and the second lock buckle are C9 hot-rolled lock buckles, the first lock buckle opening faces outwards, and the second lock buckle opening faces inwards.

[0011] Furthermore, the first lock buckle and the second lock buckle are welded on the pipe pile.

[0012] Furthermore, the plugging material is plugging gravel.

[0013] Furthermore, the pipe piles include supporting pipe piles and transition pipe piles. The supporting pipe piles are provided with a template, a first lock buckle and a second lock buckle, and the transition pipe piles are provided with a first lock buckle and a second lock buckle.

[0014] Furthermore, the pipe piles include first-driven pipe piles and second-driven pipe piles, the first-driven pipe piles are arranged at intervals, and the second-driven pipe piles are arranged between the first-driven pipe piles.

[0015] Beneficial effects of this application:

[0016] 1. According to the foundation size and construction progress, the overall planning and design of the cofferdam should be carried out in advance, and modular construction should be carried out outside the cap protection layer to improve construction efficiency.

[0017] 2. The materials used are easy to obtain, simple to manufacture and install, flexible and convenient to disassemble, and the remaining materials can be reused, reducing material costs.

[0018] 3. The fixing system is easy and firm to set up, and welding is mostly used without the need for special processes, which reduces the difficulty of construction.

[0019] 4. The construction efficiency is high, labor is saved, the construction schedule is guaranteed, and the construction quality is improved. The cofferdam template can be used many times, which brings great economic benefits to the construction unit and also has great social benefits.

[0020] The aforementioned main scheme of the present application and its further options can be freely combined to form multiple schemes, all of which are schemes that can be adopted and claimed for protection in the present application; and in the present application, (non-conflicting options) can also be freely combined with each other and with other options. After understanding the present scheme, those skilled in the art can understand that there are many combinations based on the prior art and common knowledge, all of which are technical schemes to be protected by the present application, and they are not exhaustively listed here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the pipe pile of this application.

[0022] Figure 2 It is a connection diagram of the pipe piles of this application.

[0023] Figure 3 It is a schematic diagram of the structure of this application.

[0024] In the figure: 1-pipe pile, 2-template, 3-first lock buckle, 4-second lock buckle, 5-sealing material, 6-cavity partition, 101-support pipe pile, 102-transition pipe pile, 103-first pipe pile, 104-later pipe pile. DETAILED DESCRIPTION

[0025] The present application is further described below in conjunction with specific embodiments and drawings.

[0026] refer to Figure 1 to Figure 3 As shown, a rapid construction system for a foundation construction cofferdam and a formwork is used together, comprising a pipe pile 1, a formwork 2, a first locking buckle 3, a second locking buckle 4, a blocking material 5 and a cavity 6.

[0027] The pipe pile 1 is driven into the ground as a main force-bearing support member. The pipe pile 1 is a circular tube structure, a rectangular tube structure or a polygonal prism tube structure. In this embodiment, the pipe pile 1 is a circular tube structure, made of Q235B steel, and has a size of φ1000×12mm.

[0028] The inner side of the pipe pile 1 is welded and fixed with a template 2, and the inner side of the template 2 is the enclosure surface. Several templates 2 are spliced ​​to form a completely closed platform operation space. The template 2 is a straight plate structure, a folded plate structure or an arc structure, which is spliced ​​to form a work space of different structures. The template 2 of this embodiment is a straight plate structure with a thickness of 10mm. According to the splicing of the template 2, the platform operation space is rectangular, circular, polygonal or oblong (the two ends of the rectangle are semicircular), and the present embodiment is rectangular.

[0029] A first lock buckle 3 is welded on the first side of the pipe pile 1, and a second lock buckle 4 is welded on the second side of the pipe pile 1. Two adjacent pipe piles 1 are connected by the buckling of the first lock buckle 3 and the second lock buckle 4. The first lock buckle 3 and the second lock buckle 4 are C9 hot-rolled lock buckles, the first lock buckle 3 opens outwards, and the second lock buckle 4 opens inwards. The two lock buckles are buckled with each other to achieve detachable fixation.

[0030] The template 2, the first lock buckle 3 and the second lock buckle 4 are arranged along the length direction of the pipe pile 1, and the ends of the two adjacent templates 2 are opposite to each other, forming a small gap. The two adjacent lock buckles are buckled together, and the first waterproof barrier is achieved by buckling and tightening. At the same time, the adjacent first lock buckle 3, the second lock buckle 4, the two pipe piles 1 and the two templates 2 jointly form a compartment 6, and the compartment 6 is provided with a plugging material 5, which is a plugging gravel, which is used to provide a second waterproof barrier for the space between the two pipe piles 1 to prevent the water outside the pipe pile 1 from leaking inward.

[0031] The pipe pile 1 includes a supporting pipe pile 101 and a transition pipe pile 102. Both types of pipe piles have the function of overall support and mutual splicing. The difference is that the supporting pipe pile 101 is provided with a template 2, a first lock buckle 3 and a second lock buckle 4. The supporting pipe pile 101 is mainly used to support the template 2. The transition pipe pile 102 is provided with a first lock buckle 3 and a second lock buckle 4. The transition pipe pile 102 does not support the template 2 and is mainly used for structural transition at corners, turns and curves.

[0032] For the rectangular foundation working space of this embodiment, the supporting pipe piles 101 are arranged at the four sides of the rectangle, and their first lock buckles 3 and second lock buckles 4 are located in the same radial direction. The transition pipe piles 102 are arranged at the end corners of the rectangle, and their first lock buckles 3 and second lock buckles 4 are respectively located in two radial directions perpendicular to each other.

[0033] The pipe piles 1 include first-driven pipe piles 103 and second-driven pipe piles 104. The first-driven pipe piles 103 are driven first and serve as the basis for the installation and positioning of the second-driven pipe piles 104. The second-driven pipe piles 104 are driven last and constructed one by one with reference to the first-driven pipe piles 103. The first-driven pipe piles 103 are arranged at intervals, mainly at the equal points of the end angles and the sides, and the second-driven pipe piles 104 are arranged between the first-driven pipe piles 103.

[0034] The workflow of this application:

[0035] 1. According to the pier cap construction drawings, combined with the construction plan positioning distribution, width and height, combined with the real-time water level on site, and the water level elevation that may rise in the future, the cofferdam template is designed and manufactured, and customized in the on-site steel bar processing shed.

[0036] 2. According to the construction drawings and the positioning and distribution of the construction plan, Q235B steel is used to process pipe piles (φ1000×12mm), and welding is carried out in the on-site steel bar processing shed. The C9 hot-rolled lock is positioned on the steel pipe pile, and the template (10mm thick) is welded on the parallel surface of the hot lock. The steel pipe pile and the C9 lock are butt welded with full penetration. The C9 hot-rolled lock of the straight-side lock steel pipe pile is symmetrically arranged and on the same diameter line, and the C9 hot-rolled lock of the corner lock steel pipe pile is at a 90° angle.

[0037] 3. Measure and position the pile according to the base coordinates, and mark the center of the pile in the water. The cofferdam template is transported to the piling site by a transport ship, and is lifted to the pile position by a floating crane for insertion.

[0038] 4. Check the cofferdam template installation to see if it is compliant and accurate by comparing it with the construction plan. Check if the cofferdam template is loose. If it is loose or offset, adjust and reinforce it in time.

[0039] 5. When pouring concrete for the underwater pedestal, a dedicated person should be on guard. If deviation, water seepage, etc. occur during the pouring process, timely adjustments and reinforcements should be made to ensure the construction quality and molding quality of the pedestal.

[0040] The aforementioned basic examples and their further selected examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed for protection in this application. In the scheme of this application, each selected example can be arbitrarily combined with any other basic examples and selected examples.

[0041] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A rapid construction system for a cap construction cofferdam and a formwork, comprising a plurality of pipe piles (1), characterized in that: A template (2) is fixed on the inner side of the pipe pile (1); a plurality of templates (2) are spliced ​​together to form a completely closed foundation operation space; a first lock buckle (3) is provided on the first side of the pipe pile (1); a second lock buckle (4) is provided on the second side of the pipe pile (1); two adjacent pipe piles (1) are connected by the engagement of the first lock buckle (3) and the second lock buckle (4); the adjacent first lock buckle (3), the second lock buckle (4), the two pipe piles (1) and the two templates (2) together form a compartment (6); a plugging material (5) is provided in the compartment (6).

2. The rapid construction system for the cofferdam and formwork used in the construction of the platform according to claim 1 is characterized by: The platform operation space is rectangular, circular, polygonal or oblong.

3. The rapid construction system for the cofferdam and formwork used in the construction of the platform according to claim 1 is characterized by: The pipe pile (1) is a circular pipe structure, a rectangular pipe structure or a polygonal prism pipe structure.

4. The rapid construction system for the cofferdam and formwork used in the construction of the platform according to claim 1 is characterized by: The template (2) is a straight plate structure, a folded plate structure or an arc structure.

5. The rapid construction system for the cofferdam and formwork used in the construction of the platform according to claim 1 or 4, characterized in that: The template (2) is welded on the pipe pile (1).

6. The rapid construction system for the cofferdam and formwork used in the construction of the platform according to claim 1 is characterized by: The first lock buckle (3) and the second lock buckle (4) are C9 hot-rolled lock buckles, the first lock buckle (3) has an opening facing outwards, and the second lock buckle (4) has an opening facing inwards.

7. The rapid construction system for the construction of the cap cofferdam and the template according to claim 1 or 6, characterized in that: The first locking buckle (3) and the second locking buckle (4) are welded to the pipe pile (1).

8. The rapid construction system for the cofferdam and formwork used in the construction of the platform according to claim 1 is characterized by: The plugging material (5) is plugging gravel.

9. The rapid construction system for the cofferdam and formwork used in the construction of the platform according to claim 1 is characterized by: The pipe pile (1) comprises a supporting pipe pile (101) and a transition pipe pile (102); the supporting pipe pile (101) is provided with a template (2), a first locking buckle (3) and a second locking buckle (4); and the transition pipe pile (102) is provided with a first locking buckle (3) and a second locking buckle (4).

10. The rapid construction system for the cofferdam and formwork used in the construction of the platform according to claim 1 is characterized by: The pipe piles (1) include first-driven pipe piles (103) and second-driven pipe piles (104). The first-driven pipe piles (103) are arranged at intervals, and the second-driven pipe piles (104) are arranged between the first-driven pipe piles (103).

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