Large-water-flow underwater concrete pouring formwork mounting structure and construction method thereof

Abstract

The invention discloses a concrete pouring formwork installation structure and a construction method thereof, and relates to the technical field of underwater concrete construction.The concrete pouring formwork installation structure comprises anchor bars and stand columns, the bottoms of the anchor bars are anchored to a foundation, the tops of the anchor bars are fixed to the stand columns, the concrete pouring formwork installation structure further comprises formwork pieces, guide rods and pushing bodies, and the formwork pieces are rotatably connected with the stand columns on the two sides; the pushing bodies are fixed to the bottoms of the guide rods and can move up and down to push the formwork pieces to rotate so that the upper formwork piece and the lower formwork piece can be connected and closed in the vertical state, and the density of the pushing bodies is larger than the water density and smaller than the concrete density. The underwater diving device is easy to install and adjust so as to cope with continuously changing water flow conditions, the dependence on diving operation is reduced, and therefore the safety is improved, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of underwater concrete construction, and in particular to an installation structure of a concrete pouring template under a large water flow and a construction method thereof. Background Art

[0002] Concrete pouring is a basic and critical task in water conservancy projects, bridge construction, and the repair of underwater structures. Concrete pouring faces many challenges, especially in large water flow environments. Traditional concrete pouring methods usually rely on heavy and sturdy formwork systems that need to be fixed underwater by anchoring or other mechanical means. These formworks are usually made of steel or other corrosion-resistant materials, and the design must ensure that they can withstand the physical forces brought by water flow, such as impact and pressure.

[0003] Although the existing technology has shown effectiveness in many aspects, it still has some shortcomings. For example, the installation of traditional formwork is usually labor-intensive and time-consuming. Especially under strong water flow conditions, the stability and sealing of the formwork are difficult to ensure, and additional physical support and sealing measures are often required. In addition, the traditional method is not adaptable enough in dynamic water flow. Once the formwork is installed incorrectly, the adjustment is difficult and costly due to the heavy formwork system. This not only increases the complexity of construction, but also increases the cost of the project. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a concrete pouring formwork installation structure and a construction method thereof, which should be easy to install and adjust to cope with changing water flow conditions and reduce dependence on diving operations, thereby improving safety and reducing costs.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides a concrete casting formwork installation structure, comprising anchor bars and columns, wherein the bottom of the anchor bars is anchored to a foundation and the top is fixed to the columns, and further comprising formwork sheets, guide rods and pushers, wherein the formwork sheets are rotatably connected to the columns on both sides, and a plurality of the formwork sheets are arranged along the height of the columns, and the pushers are fixed to the bottom of the guide rods and can move up and down to push the formwork sheets to rotate so that the upper and lower formwork sheets are connected and closed in a vertical state, and the density of the pushers is greater than the water density but less than the concrete density.

[0007] Furthermore, the template sheet is connected to the column via a rotating shaft, one end of the rotating shaft is rotatably connected to the column, and the other end is fixedly connected to the template sheet.

[0008] Furthermore, a card slot is provided at the end of the template sheet, and the template sheets are embedded and sealed through the card slot.

[0009] Furthermore, the tops of the columns on both sides are connected by a cross bar, a guide hole is arranged in the middle of the cross bar, and the guide rod is inserted into the guide hole.

[0010] Furthermore, the height of the pusher is 1-2 times the height of the template sheet.

[0011] Furthermore, the bottom surface of the pushing body is a curved surface.

[0012] Furthermore, the pushing body is a cylindrical cone.

[0013] Furthermore, the guide rod is marked with scales.

[0014] The present invention also provides a construction method of the above concrete pouring template installation structure, comprising the following steps:

[0015] A) Install columns and anchor bars:

[0016] Connect the anchor bars to the foundation;

[0017] B) Installation of template:

[0018] Install the formwork sheets on the two side columns, and the upper and lower formwork sheets can be connected and closed with each other;

[0019] C) Setting of crossbar and guide structure:

[0020] A cross bar is installed on both sides of the top of the column, a guide hole is set in the middle of the cross bar, the guide bar is inserted into the guide hole from the bottom, and a pusher is connected to the bottom of the guide bar;

[0021] D) Operation and adjustment of template:

[0022] When the concrete is not poured initially, the pusher is at the bottom of the bin due to gravity, and the bottom template piece is in a vertical state. The upper template piece will become horizontal according to the impact characteristics of the water flow, so as to allow the water to flow smoothly through the pores between the template pieces.

[0023] After the concrete pouring starts, the concrete surface gradually rises, pushing the pusher to rise and squeeze the upper template sheet to rotate to a vertical state, and the template sheets are connected and sealed to prevent leakage of slurry from the template;

[0024] E) Observe the pouring position:

[0025] The diver confirms the rising height of the concrete by observing the scale on the guide rod at the top of the underwater formwork until the bin is filled with concrete.

[0026] The beneficial effects of the present invention are:

[0027] (1) Improved water flow: The template installation structure of the present invention is designed so that the template pieces are horizontal before concrete pouring, so that water can flow smoothly through the gaps between the template pieces, significantly reducing the impact problem caused by water flow resistance. This design effectively avoids the common problem of the template being impacted under high water flow conditions, thereby improving the stability of the template under extreme water flow conditions.

[0028] (2) Dynamic adjustment of template closure: As the concrete pouring surface gradually rises, the template pieces are rotated and closed layer by layer by pushing the cylindrical cone upward. This dynamic adjustment method allows the template to automatically adjust the degree of closure according to the progress of concrete pouring, greatly improving the flexibility of construction and the ability to cope with complex water flow conditions.

[0029] (3) Enhance the ability of the formwork to resist water flow: The closed formwork is filled with concrete. This structural design makes the closed formwork have higher structural strength and the ability to resist water flow thrust. This not only increases the overall stability of the formwork, but also ensures safety during the pouring process.

[0030] (4) Improve construction efficiency and safety: With the template installation structure of the present invention, divers only need to observe the scale of the guide rod at the top of the template to determine the height of concrete pouring, without diving to the bottom for observation. The construction team can perform underwater concrete pouring operations more quickly and safely. The automatic adjustment and stable design of the template reduces the excessive intervention of divers underwater, thereby reducing the risk in construction and improving work efficiency.

[0031] (5) Optimize construction costs and environmental impact: Reduce repetitive work caused by formwork adjustment or failure, thereby reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is the structural front view of the structure of the present invention.

[0033] Figure 2 It is a structural side view of the structure of the present invention.

[0034] In the figure: anchor bar 1, column 2, template sheet 3, slot 31, guide rod 4, pusher 5, rotating shaft 6, cross bar 7, guide hole 71. DETAILED DESCRIPTION

[0035] The following further describes the structures involved in the present invention or the technical terms used in these descriptions. These descriptions are only used as examples to illustrate how the methods of the present invention are implemented, and cannot constitute any limitation to the present invention.

[0036] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left" and "right" indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, "connection", "fixation" and the like should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Figure 1 and Figure 2 As shown, this embodiment introduces a concrete casting formwork installation structure under a large water flow, including anchor bars 1 and columns 2. The bottom of the anchor bars 1 is anchored to the foundation, and the top is fixed to the column 2. It also includes a template sheet 3, a guide rod 4 and a pusher 5. The template sheet 3 is rotatably connected to the columns 2 on both sides. Several pushers 5 are arranged along the height of the column 2. The pusher 5 is fixed at the bottom of the guide rod 4 and can move up and down to push the template sheet 3 to rotate so that the upper and lower template sheets 3 are connected and closed in a vertical state. The density of the pusher 5 is greater than the water density but less than the concrete density.

[0039] The template installation structure of the present invention is designed so that the template sheet 3 is horizontal before concrete pouring, so that water can smoothly pass through the gaps between the template sheets 3, significantly reducing the impact problem caused by water flow resistance. The density of the pusher 5 is greater than the water density but less than the concrete density. As the concrete pouring surface gradually rises, the template sheet 3 is rotated and closed layer by layer by pushing the pusher 5. This dynamic adjustment method allows the template to automatically adjust the degree of closure according to the progress of concrete pouring. The closed template sheet 3 is filled with concrete. This structural design enables the closed template sheet 3 to have a higher structural strength and the ability to resist water flow thrust.

[0040] The template sheet 3 is made of steel sheet and has a certain strength.

[0041] The template sheet 3 is connected to the column 2 via a rotating shaft 7. One end of the rotating shaft 7 is rotatably connected to the column 2, and the other end is fixedly connected to the template sheet 3, so that the template sheet 3 can rotate.

[0042] A clamping groove 31 is provided at the end of the template sheet 3 , and the template sheets 3 are embedded and sealed through the clamping groove 31 .

[0043] The tops of the two side columns 2 are connected by a cross bar 7 , a guide hole 71 is provided in the middle of the cross bar 7 , and the guide rod 4 is inserted into the guide hole 71 , so that the guide rod 4 can move in the vertical direction through the guide hole 71 .

[0044] The bottom surface of the pusher 5 is a curved surface, such as a cylindrical cone. The curved surface at the bottom of the cylindrical cone 5 is subjected to more uniform force, which helps to uniformly apply the thrust on the concrete contact surface, so that the cylindrical cone 5 rises uniformly.

[0045] The height of the cylindrical cone 5 is the same as that of the template sheet 3, which can ensure that when the cylindrical cone 5 is pushed up by the concrete, it only pushes the template sheet 3 at the current layer height to close, while the upper template sheet 3 maintains a horizontal opening with a gap for water to flow through, reducing the lateral thrust of the upper water flow on the template sheet 3 and helping to stabilize the template sheet 3.

[0046] There are scales marked on the guide rod 4. Divers only need to observe the scales of the guide rod 4 at the top of the template to determine the height position of concrete pouring, without diving to the bottom for observation. The construction team can perform underwater concrete pouring operations more quickly and safely.

[0047] This embodiment also introduces a construction method for the above-mentioned concrete pouring template installation structure, including the following steps:

[0048] A) Install columns and anchor bars:

[0049] Insert the anchor bar 1 at the bottom of the column 2 into the pre-set anchor hole, and use an anchoring agent to ensure a firm connection between the column 2 and the foundation;

[0050] B) Installation of template:

[0051] The template sheet 3 is mounted on the two side columns 2 through the rotating shaft 6 to ensure that the template sheet 3 can rotate freely, and the slots 31 at the ends of the template sheet 3 can be embedded and connected to each other after rotation to form a closed barrier;

[0052] C) Setting of crossbar and guide structure:

[0053] Install cross bars 7 on both sides of the top of the column 2 to ensure that the cross bars 7 are stable and horizontal, set a guide hole 71 in the middle of the cross bars 7, insert the guide rod 4 connected with the cylindrical cone into the guide hole 71 from the bottom to ensure that the guide rod 4 can move up and down smoothly;

[0054] D) Operation and adjustment of template:

[0055] When concrete is not poured initially, the cylindrical cone is at the bottom of the bin under the force of gravity, and the template sheet 3 at the bottom is in a vertical state. The template sheet 3 at the top will become horizontal according to the impact characteristics of water flow, so as to allow water to flow smoothly through the pores between the template sheets 3, thereby reducing water flow resistance and impact force;

[0056] After the concrete pouring starts, the concrete surface gradually rises, pushing the cylindrical cone 5 upward to squeeze the upper template sheet 3 to rotate to a vertical state. After the rotation, the slots 31 at the ends of the template sheet 3 are embedded and closed to be connected to each other to ensure that the template does not leak.

[0057] E) Observe the pouring position:

[0058] The diver can confirm the rising height of the concrete by observing the scale of the guide rod 4 at the top of the underwater template, and can also observe the stability of the template during the rising process of the concrete from the outside of the template until the warehouse is filled with concrete.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A concrete casting template installation structure, comprising anchor bars and columns, wherein the bottom of the anchor bars is anchored to the foundation and the top is fixed to the column, characterized in that: It also includes a template sheet, a guide rod and a pushing body. The template sheet is rotatably connected to the columns on both sides. Several template sheets are arranged along the height of the columns. The pushing body is fixed to the bottom of the guide rod and can move up and down to push the template sheet to rotate so that the upper and lower template sheets are connected and closed in a vertical state. The density of the pushing body is greater than the water density but less than the concrete density.

2. The concrete pouring formwork installation structure according to claim 1 is characterized in that: The template sheet is connected to the column via a rotating shaft, one end of the rotating shaft is rotatably connected to the column, and the other end is fixedly connected to the template sheet.

3. The concrete pouring formwork installation structure according to claim 1, characterized in that: The ends of the template sheets are provided with card slots, and the template sheets are embedded and sealed through the card slots.

4. The concrete pouring formwork installation structure according to claim 1, characterized in that: The tops of the columns on both sides are connected by a cross bar, a guide hole is arranged in the middle of the cross bar, and the guide rod is inserted into the guide hole.

5. The concrete pouring formwork installation structure according to claim 1, characterized in that: The height of the pusher is 1-2 times the height of the template sheet.

6. The concrete pouring formwork installation structure according to claim 1, characterized in that: The bottom surface of the pushing body is a curved surface.

7. The concrete pouring formwork installation structure according to claim 5, characterized in that: The pushing body is a cylindrical cone.

8. The concrete pouring formwork installation structure according to claim 1, characterized in that: The guide rod is marked with scales.

9. A construction method for a concrete pouring formwork installation structure, characterized in that: The construction of the installation structure described in claims 1 to 8 comprises the following steps: A) Install columns and anchor bars: Connect the anchor bars to the foundation; B) Installation of template: Install the template sheets on the two side columns, and the upper and lower template sheets can be connected and closed with each other; C) Setting of crossbar and guide structure: A cross bar is installed on both sides of the top of the column, a guide hole is set in the middle of the cross bar, the guide bar is inserted into the guide hole from the bottom, and a pusher is connected to the bottom of the guide bar; D) Operation and adjustment of template: When the concrete is not poured initially, the pusher is at the bottom of the bin due to gravity, and the bottom template piece is in a vertical state. The upper template piece will become horizontal according to the impact characteristics of the water flow, so as to allow the water to flow smoothly through the pores between the template pieces. After the concrete pouring starts, the concrete surface gradually rises, pushing the pusher to rise and squeeze the upper template sheet to rotate to a vertical state, and the template sheets are connected and closed to prevent the template from leaking; E) Observe the pouring position: The diver confirms the rising height of the concrete by observing the scale on the guide rod at the top of the underwater formwork until the bin is filled with concrete.

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