Combined steel corrugated pipe inverted arch protection construction formwork and pouring method

Abstract

The application relates to the technical field of highway engineering construction, and provides a combined steel corrugated pipe inverted arch protection construction formwork and a pouring method, the construction formwork is used in cooperation with the steel corrugated pipe, and comprises a panel assembly, a side plate assembly and a steel corrugated pipe; the panel assembly comprises a side plate and a plurality of middle plates, the side plate and the plurality of middle plates are movably arranged in an integrated mode to form an arc-shaped panel, and the arc-shaped panel is arranged in the steel corrugated pipe; the side plate assembly comprises a side edge plate, a side middle plate and a center plate, the side edge plate, the side middle plate and the center plate are jointedly arranged in an integrated mode to form a plane plate, the plate surface of the plane plate is arranged at one end of the arc-shaped panel in a mode perpendicular to the plate surface of the arc-shaped panel, and the side plate assembly is located at the outer side of the steel corrugated pipe. The application can realize concrete pouring of the steel corrugated pipe culvert of various diameters, reduce the situation that the formwork needs to be newly made due to the change of the pipe diameter, improve the use efficiency of the formwork, and reduce the construction cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of highway engineering construction, in particular to a combined steel corrugated pipe inverted arch protection construction formwork and pouring method. BACKGROUND

[0002] The steel corrugated pipe refers to the spiral corrugated pipe buried under the highway and railway culvert, which is a circular corrugated pipe made of wave-shaped metal plate or spliced with semi-circular wave-shaped steel sheet, and is widely used in culvert pipes in highway, railway, small bridge, passageway, retaining wall and various mine and tunnel retaining wall engineering. Due to the scouring of water flow, the inside lower side of the steel corrugated pipe is generally poured with a concrete layer to protect the steel corrugated pipe and prolong the service life.

[0003] The construction formwork is a common auxiliary turnover material in highway concrete engineering construction, which generally uses steel formwork. If a special-shaped non-planar formwork is used, it needs to be separately processed and is a one-time investment. In view of the different pipe diameters in the steel corrugated pipe culvert construction of highway engineering or municipal engineering, the conventional fixed shape formwork needs to be separately processed and is a one-time investment, which has a large construction cost. During the construction turnover process, the formwork may be deformed due to various reasons, causing irreversible damage to the formwork. The formwork repair process is time-consuming and laborious, the construction efficiency is reduced, and even if a large amount of manpower and material resources are invested, the formwork still has many problems, causing irreversible construction defects in the concrete engineering construction.

[0004] Therefore, in view of the above problems, a combined steel corrugated pipe inverted arch protection construction formwork and pouring method is proposed to solve the above problems. SUMMARY

[0005] The present application is developed in view of the deficiencies of the prior art, and provides a combined steel corrugated pipe inverted arch protection construction formwork and pouring method. The present application provides a combined and adjustable formwork. The formwork can be used for concrete pouring of steel corrugated pipe culverts with various diameters during construction, reduces the need to re-produce the formwork due to changes in pipe diameter, improves the use efficiency of the formwork, and reduces the construction cost.

[0006] To achieve the above purpose, the present application is realized by the following technical scheme:

[0007] A combined steel corrugated pipe inverted arch protection construction formwork, comprising:

[0008] A panel assembly comprising a side plate and a middle plate, the side plate and the middle plate are movably arranged as a whole, and form an arc-shaped panel and are arranged in the steel corrugated pipe;

[0009] The side plate assembly comprises side edge plates, side middle plates and a center plate, which are spliced to form an integral plane plate, the plate surface of the plane plate is perpendicular to the plate surface of the arc-shaped plate and is arranged at one end of the arc-shaped plate, and the side plate assembly is located on the outer side of the steel corrugated pipe.

[0010] As a preferred, the panel assembly further comprises notches, the notches comprise female notches and male notches, the female notches are arranged on one side edge of the middle plate, the male notches are arranged on the other side edge of the middle plate, and the edge plates are arranged with corresponding notches close to the side edges of the middle plate; the female notches and the male notches of the plurality of middle plates are inserted into each other to splice to form the arc-shaped plate, and the edge plates are arranged on both sides of the arc-shaped plate.

[0011] As a preferred, the middle plate and the edge plate are connected by a pin shaft, and the middle plate and the middle plate are connected by a pin shaft, and the radius of the arc-shaped plate can be changed by the rotating connection, so as to adapt to steel corrugated pipes with different diameters, and the use range is expanded.

[0012] As a preferred, the center plate is provided with a first convex plate on both sides, the first convex plate is provided with a first sliding groove, one side of the side middle plate close to the center plate is provided with a first recess corresponding to the first convex plate, a side wall of the first recess is provided with a second sliding groove corresponding to the first sliding groove, and the other side of the side middle plate away from the center plate is provided with a second convex plate, the second convex plate is provided with a third sliding groove, and the side edge plate close to the side edge of the side middle plate is provided with a second recess corresponding to the second convex plate, and a side wall of the second recess is provided with a fourth sliding groove corresponding to the third sliding groove. The side plate assembly is spliced by the convex plate and the sliding groove to support the arc-shaped plate, and the stability of construction is improved.

[0013] As a preferred, the side plate assembly further comprises a pin, the pin is arranged between the first sliding groove and the second sliding groove to connect the center plate and the side middle plate, and the pin is arranged between the third sliding groove and the fourth sliding groove to connect the side middle plate and the side edge plate. The pins arranged in the sliding grooves connect the side plate assembly as a whole, and the firmness of the support is improved.

[0014] As a preferred, the side edge plate is provided with a positioning member close to the plate surface of the panel assembly, the positioning member is arranged on the side edge of the arc-shaped plate formed by the panel assembly to limit the position of the arc-shaped plate, prevent the deformation of the arc-shaped plate during the concrete pouring process, and improve the overall stability.

[0015] As a preferred, the number of middle plates is different according to the radius of the steel corrugated pipe, and the specific number of standards is:

[0016] Wherein, n is the number of selected middle plates; l is the arc length of the part to be poured in the steel corrugated pipe; d is the width of the middle plate, the number of middle plates is rounded up, and the number of middle plates is determined to improve the construction efficiency.

[0017] A pouring method, comprising a combined steel corrugated pipe inverted arch protection construction formwork as described above, and the specific pouring steps are as follows:

[0018] Step one: set the steel mesh in the installed steel corrugated pipe, and make the bolt installed for the steel corrugated pipe longer to serve as the stirrup for the steel mesh, and the part of the bolt extending out of the steel mesh serves as the fulcrum for the overall fixation of the panel assembly;

[0019] Step two: splice the panel assembly into an arc-shaped panel through the pin shaft, and set the arc-shaped panel in the steel corrugated pipe, so that the steel mesh is located between the arc-shaped panel and the inner wall of the steel corrugated pipe;

[0020] Step three: splice the side plate assembly into a plane panel through the pin, and set the plane panel on the outer side of the steel corrugated pipe with the panel surface perpendicular to the panel surface of the arc-shaped panel, meanwhile, set the positioning member on the two side edges of the arc-shaped panel to limit the shape of the arc-shaped panel, and connect the bolt and the arc-shaped panel to limit the position of the arc-shaped panel;

[0021] Step four: pour the concrete from the highest position of the inverted arch, i.e. the side edge of the arc-shaped panel, and insert the vibrating rod into the concrete pouring position to vibrate;

[0022] Step five: then, integrally vibrate the arc-shaped panel with the plane vibrator to perform the surface light receiving treatment;

[0023] Step six: after the concrete poured in the steel corrugated pipe solidifies, disassemble the construction formwork, install the next steel corrugated pipe next to the already poured steel corrugated pipe, and repeat steps one to five after the installation to complete the construction of the construction section.

[0024] The effects provided in the summary are only the effects of the embodiments, not all the effects of the invention, and the above technical solutions have the following advantages:

[0025] 1、The panel assembly is arranged, and the panel assembly is combined into the arc-shaped panel with adjustable radius, so that the pouring of the steel corrugated pipe culvert concrete with various diameters is adapted, the situation that multiple formworks need to be made due to different diameters of the steel corrugated pipe is reduced, and the construction cost is reduced.

[0026] 2、The side plate assembly is arranged to temporarily fix the shape of the arc-shaped panel formed by the panel assembly, prevent the shape of the arc-shaped panel from changing during the concrete pouring process to cause unqualified pouring quality, and improve the stability of the construction; and the connection between the plate members of the present application is detachable connection, which is convenient for management and movement, and improves the efficiency of the construction. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of the specification, illustrate embodiments of the application and are used to explain the application, but are not intended to limit the application.

[0028] Figure 1 Front view structural schematic diagram of the panel assembly of the present application;

[0029] Figure 2 Front view structural schematic diagram of the side plate assembly of the present application;

[0030] Figure 3 Top view structural schematic diagram of the side plate assembly of the present application;

[0031] Figure 4 Overall structural schematic diagram of the panel assembly of the present application;

[0032] Figure 5 Structural schematic diagram of the arc-shaped panel composed of the panel assembly of the present application;

[0033] Figure 6 Overall structural schematic diagram of the side plate assembly of the present application;

[0034] Figure 7 Overall structural schematic diagram of the template after connection of the present application;

[0035] Figure 8 Structural schematic diagram of the process of the pouring method of the present application;

[0036] Figure 9 Overall structural schematic diagram of the template cooperating with the steel corrugated pipe of the present application.

[0037] In the drawings, 1 is the edge plate, 2 is the middle plate, 3 is the side edge plate, 4 is the side middle plate, 5 is the center plate, 6 is the pin, 7 is the positioning piece, 8 is the notch, 201 is the recessed notch, 202 is the convex notch, 301 is the second recess, 302 is the fourth sliding groove, 401 is the first recess, 402 is the second sliding groove, 403 is the second convex plate, 404 is the third sliding groove, 501 is the first convex plate, and 502 is the first sliding groove. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] Embodiment one

[0040] As Figures 1-7As shown, a combined steel corrugated pipe inverted arch protection construction template comprises:

[0041] The panel assembly comprises the side plate 1 and the middle plate 2, the side plate 1 is movably arranged with the middle plate 2 to form an arc-shaped panel and is arranged in the steel corrugated pipe.

[0042] The side plate assembly comprises the side edge plate 3, the side middle plate 4 and the center plate 5, the side edge plate 3, the side middle plate 4 and the center plate 5 are arranged to form a planar plate, the plate surface of the planar plate is arranged at one end of the arc-shaped panel and is perpendicular to the plate surface of the arc-shaped panel, and the side plate assembly is arranged outside the steel corrugated pipe.

[0043] In the embodiment, the panel assembly further comprises the slot 8, the slot 8 comprises the female slot 201 and the male slot 202, the female slot 201 is arranged on one side edge of the middle plate 2, the male slot 202 is arranged on the other side edge, and the side plate 1 is arranged with the corresponding slot near the side edge of the middle plate 2; the female slot 201 and the male slot 202 of the plurality of middle plates 2 are inserted and spliced to form the arc-shaped panel, and the side plate 1 is arranged on both sides of the arc-shaped panel.

[0044] In the embodiment, the middle plate 2 and the side plate 1 are connected through the pin shaft, and the middle plate 2 and the middle plate 2 are connected through the pin shaft, so that the radius of the arc-shaped panel can be changed to adapt to the steel corrugated pipe with different diameters, and the use range is expanded.

[0045] In another embodiment, the middle plate 2 and the side plate 1 are movably connected through the bolt, and the middle plate 2 and the middle plate 2 are movably connected through the bolt, so that the connection is more firm and stable.

[0046] In the embodiment, the center plate 5 is provided with the first convex plate 501 on both sides, the first convex plate 501 is provided with the first sliding groove 502, the side middle plate 4 is provided with the first recess 401 corresponding to the first convex plate 501 on one side close to the center plate 5, the side wall of the first recess 401 is provided with the second sliding groove 402 corresponding to the first sliding groove 502, the side middle plate 4 is provided with the second convex plate 403 on the side away from the center plate 5, the second convex plate 403 is provided with the third sliding groove 404, the side edge plate 3 is provided with the second recess 301 corresponding to the second convex plate 403 on the side edge close to the side middle plate 4, the side wall of the second recess 301 is provided with the fourth sliding groove 302 corresponding to the third sliding groove 404, and the side plate assembly is spliced through the convex plate and the sliding groove to support the arc-shaped panel, thereby improving the stability of construction.

[0047] In this embodiment, the side plate assembly further includes pins 6. The pins 6 are disposed between the first slide groove 502 and the second slide groove 402 to connect the center plate 5 and the side middle plate 4. The pins 6 are disposed between the third slide groove 404 and the fourth slide groove 302 to connect the side middle plate 4 and the side plate 3. The side plate assembly is connected as a whole by the pins disposed in the slide grooves, which improves the stability of the support.

[0048] In this embodiment, a positioning member 7 is provided on the side panel 3 near the panel assembly. The positioning member 7 is provided on the side of the arc-shaped panel formed by the panel assembly to limit the shape of the arc-shaped panel.

[0049] In this embodiment, the positioning element 7 is set as a short shaft, and the side plate 1 is provided with a shaft hole at the position corresponding to the short shaft. The short shaft is inserted into the shaft hole to connect the panel assembly and the side plate assembly, while restricting the shape of the arc panel to prevent its deformation from affecting the casting effect.

[0050] In this embodiment, the number of the middle plates 2 varies depending on the radius of the corrugated steel pipe. The specific number is as follows:

[0051] Where n is the number of intermediate plates selected; l is the arc length of the part to be poured inside the corrugated steel pipe; d is the width of the intermediate plate. The number of intermediate plates is rounded up to the nearest integer to determine the number of intermediate plates in order to improve construction efficiency.

[0052] Example 2

[0053] like Figures 8-9 As shown, a casting method includes a combined corrugated steel arch protection construction formwork as described above, and the specific casting steps are as follows:

[0054] Step 1: Place the steel mesh inside a section of corrugated steel pipe that has already been installed, and lengthen the bolts that are used to install the corrugated steel pipe to serve as stirrups for the steel mesh. The part of the bolts that protrudes from the steel mesh serves as a support point for fixing the panel assembly as a whole.

[0055] Step 2: Assemble the panel components into an arc-shaped panel using pins and place it inside the corrugated steel pipe, so that the steel mesh is located between the arc-shaped panel and the inner wall of the corrugated steel pipe;

[0056] Step 3: Assemble the side panel assembly into a flat panel using pins 6, with the panel surface perpendicular to the surface of the curved panel and set on the outside of the steel corrugated pipe. At the same time, set the positioning pieces 7 on both sides of the curved panel to restrict the shape of the curved panel, and connect the bolts to the curved panel to restrict the position of the curved panel.

[0057] Step 4: Pour the concrete from the highest point on both sides of the invert arch, that is, the side of the curved panel, and at the same time use a vibrator to vibrate the concrete pouring part.

[0058] Step 5: Then, use a flat vibrator to vibrate the entire curved panel and perform surface finishing.

[0059] Step Six: After the concrete poured for this section of corrugated steel pipe has solidified, remove the construction formwork and install the next section of corrugated steel pipe next to the already poured section. Repeat steps one to five after installation until the construction of this section is completed.

[0060] In this embodiment, the connection between the bolt and the curved panel is set as spot welding. The curved panel is removed after the concrete is poured. During the pouring process, the curved panel itself is hardly under any force. Therefore, spot welding is a more economical connection method that satisfies both the requirement of fixed position and easy disassembly, thus reducing construction costs.

[0061] In this embodiment, the side plate assembly on the outside of the corrugated steel pipe is connected to the ground and temporarily fixed by the ground support structure or stirrup reinforcement. After the pouring is completed, it is removed to determine the position of the entire construction formwork, thereby improving the stability and quality of construction.

[0062] Working principle: First, calculate and prepare the corresponding number of middle plates 2 according to the arc length of the location to be poured in the corrugated steel pipe. Insert the grooves 201 and protrusions 202 of adjacent middle plates 2 and connect them with pins to form an integral arc-shaped panel. Then, set the two side plates 1 on both sides of the arc-shaped panel formed by the middle plates 2 with pins. Then, connect the side plates 3, side middle plates 4 and center plates 5 with pins 6 to form an integral flat plate. Set the arc-shaped panel in the location to be poured in the corrugated steel pipe. The flat plate is connected to the arc-shaped panel through positioning parts 7 and is located outside the corrugated steel pipe to support the arc-shaped panel. The flat plate itself is fixed by ground support. Then, pour the concrete from the highest point on both sides of the invert arch, that is, the side of the arc-shaped panel, and use a vibrator to vibrate the concrete pouring part. Finally, vibrate the entire arc-shaped panel with a flat vibrator and perform surface finishing. This invention miniaturizes the arc-shaped surface, combines flat plates into arc-shaped panels, transforms the overall circular mold into segmented strip templates, and uses side plate components to fix the arc-shaped panels, thereby achieving the fixation of the overall construction template and adapting to the concrete pouring of corrugated steel culverts with various apertures.

[0063] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more unless otherwise explicitly specified.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0066] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A combined corrugated steel pipe arch protection construction formwork, used in conjunction with corrugated steel pipes, characterized in that, include: The panel assembly includes a side plate (1) and a middle plate (2), wherein the side plate (1) and a plurality of middle plates (2) are movably integrated to form an arc-shaped panel and are disposed inside a corrugated steel pipe; The side panel assembly includes a side panel (3), a middle side panel (4), and a center panel (5). The side panel (3), the middle side panel (4), and the center panel (5) are spliced ​​together to form a flat panel. The surface of the flat panel is perpendicular to the surface of the arc panel and is located at one end of the arc panel. The side panel assembly is located on the outside of the corrugated steel pipe. The panel assembly also includes a slot (8), which includes a groove (201) and a convex groove (202). The middle plate (2) has a groove (201) on one side and a convex groove (202) on the other side. The side plate (1) has a corresponding slot on its side near the middle plate (2). The grooves (201) and convex grooves (202) of several middle plates (2) are interlocked to form an arc-shaped panel. The side plates (1) are arranged on both sides of the arc-shaped panel. The middle plate (2) and the side plate (1) are rotatably connected, and the middle plate (2) and the middle plate (2) are rotatably connected; The number of the middle plates (2) varies depending on the radius of the corrugated steel pipe. The specific number is as follows: Where n is the number of middle plates selected; l is the arc length of the part to be poured inside the corrugated steel pipe; d is the width of the middle plate, and the number of middle plates is rounded up to the nearest integer.

2. The combined corrugated steel pipe arch protection construction formwork according to claim 1, characterized in that: The center plate (5) is provided with a first convex plate (501) on both sides, and a first groove (502) is provided on the first convex plate (501). The side plate (4) is provided with a first groove (401) corresponding to the first convex plate (501) on the side closer to the center plate (5). A second groove (402) corresponding to the first groove (502) is provided on the side wall of the first groove (401). A second convex plate (403) is provided on the side of the side plate (4) away from the center plate (5). A third groove (404) is provided on the second convex plate (403). A second groove (301) corresponding to the second convex plate (403) is provided on the side of the side plate (3) close to the side plate (4). A fourth groove (302) corresponding to the third groove (404) is provided on the side wall of the second groove (301).

3. The combined corrugated steel pipe arch protection construction formwork according to claim 2, characterized in that: The side panel assembly also includes pins (6), which are disposed between the first slide groove (502) and the second slide groove (402) to connect the center plate (5) and the side middle plate (4), and are disposed between the third slide groove (404) and the fourth slide groove (302) to connect the side middle plate (4) and the side plate (3).

4. The combined corrugated steel pipe arch protection construction formwork according to claim 1, characterized in that: The side panel (3) is provided with a positioning element (7) on the panel surface near the panel assembly. The positioning element (7) is provided on the side of the arc panel formed by the panel assembly to limit the position of the arc panel.

5. A casting method, comprising a combined corrugated steel pipe arch protection construction formwork as described in any one of claims 1-4, characterized in that, The specific pouring steps are as follows: Step 1: Place the steel mesh inside a section of corrugated steel pipe that has already been installed, and lengthen the bolts that are used to install the corrugated steel pipe to serve as stirrups for the steel mesh. The part of the bolts that protrudes from the steel mesh serves as a support point for fixing the panel assembly as a whole. Step 2: Assemble the panel components into an arc-shaped panel using pins and place it inside the corrugated steel pipe, so that the steel mesh is located between the arc-shaped panel and the inner wall of the corrugated steel pipe; Step 3: The side panel assembly is spliced ​​into a flat panel by means of pins (6), and its surface is perpendicular to the surface of the curved panel and is set on the outside of the steel corrugated pipe. At the same time, the positioning parts (7) are set on both sides of the curved panel to limit the shape of the curved panel, and the bolts are connected to the curved panel to limit the position of the curved panel. Step 4: Pour the concrete from the highest point on both sides of the invert arch, that is, the side of the curved panel, and at the same time use a vibrator to vibrate the concrete pouring part. Step 5: Then, use a flat vibrator to vibrate the entire curved panel and perform surface finishing. Step Six: After the concrete poured for this section of corrugated steel pipe has solidified, remove the construction formwork and install the next section of corrugated steel pipe next to the already poured section. Repeat steps one to five after installation until the construction of this section is completed.

Images