A temporary plugging device for jacking construction

Abstract

The utility model relates to the field of jacking construction technology, concretely relates to a jacking construction temporary plugging device, including the plugging board, the normal direction of plugging board is along the first direction setting, the shape and size of plugging board and water stop frame are mutually matched, one side of plugging board is provided with rubber sealing ring, support frame, support frame is connected in the other side of plugging board, the length of support frame is along the first direction setting, the length of support frame is adjustable, base, base is connected in the one end of support frame far from plugging board, the one end of base far from support frame is provided with contact curved surface, the shape and size of contact curved surface and tunnel inner wall are mutually matched, the utility model can overcome the insufficient that once the water tightness of drainage vertical pipe is destroyed in the construction of the existing nuclear power plant drainage system, seawater will gush into the tunnel from the drainage vertical pipe, thereby the safety of the personnel and construction equipment in the tunnel is threatened.

Description

Technical Field

[0001] This utility model relates to the field of jacking construction technology, and in particular to a temporary sealing device for jacking construction. Background Technology

[0002] Nuclear power plant drainage systems typically consist of horizontal tunnels and vertical drainage risers located beneath the seabed, with the top of the risers needing to protrude from the seabed. To reduce offshore construction work, current technology often employs a jacking construction method for drainage risers. This involves: reserving a jacking opening at the top of the tunnel and installing a water-stop frame around it; dividing the drainage riser into multiple segments, transporting each segment into the tunnel, and then using a jacking device to push each segment out of the tunnel through the jacking opening; after the jacking construction is completed, the temporary cap on top of the drainage riser needs to be replaced with a drainage cylinder. However, since the installation of the drainage cylinder involves offshore operations, there is a risk that the drainage cylinder and the drainage riser may collide, compromising the watertightness of the riser. If the watertightness of the drainage riser is compromised, a large amount of seawater will rush into the tunnel, threatening the safety of personnel and construction equipment inside the tunnel. Therefore, it is necessary to develop a device that can temporarily seal the drainage riser during tunnel construction. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of existing nuclear power plant drainage systems, where seawater can rush into the tunnel from the drainage riser if the watertightness of the riser is compromised, thus threatening the safety of personnel and construction equipment inside the tunnel. This invention provides a temporary sealing device for jacking construction.

[0004] In a first aspect, this utility model provides a temporary sealing device for jacking construction, comprising: The sealing plate is set with its normal direction along the first direction, and the shape and size of the sealing plate are matched with those of the waterstop frame; a rubber sealing ring is provided on one side of the sealing plate. A support frame is connected to the other side of the sealing plate. The length of the support frame is set along the first direction and the length of the support frame is adjustable. The base is connected to the end of the support frame away from the sealing plate. The end of the base away from the support frame is provided with a contact surface, and the shape and size of the contact surface are matched with those of the inner wall of the tunnel.

[0005] Preferably, an adjustable top support is provided at one end of the support frame near the sealing plate. The adjustable top support is movably connected to the support frame via a screw, the length of which is set along a first direction. The side of the adjustable top support near the sealing plate is connected to the sealing plate.

[0006] Preferably, the sealing plate is provided with a top crossbeam on the side near the support frame; the length of the top crossbeam is set along the second direction, and several top crossbeams are distributed at intervals along the third direction, with the first direction, the second direction and the third direction being perpendicular to each other; the end of the top crossbeam away from the sealing plate is connected to the adjusting top support.

[0007] Preferably, the end of the adjusting top support near the top crossbeam is connected to a longitudinal distribution pipe. The length of the longitudinal distribution pipe is set along the third direction, and several longitudinal distribution pipes are distributed at intervals along the second direction. The end of the longitudinal distribution pipe away from the support frame is connected to the top crossbeam.

[0008] Preferably, an adjusting foot is provided at the end of the support frame away from the sealing plate. The adjusting foot is movably connected to the support frame via a screw, the length of which is set along the first direction. The end of the adjusting foot away from the sealing plate abuts against the base.

[0009] Preferably, the base includes a bottom crossbeam, the length of which is set along the second direction, and several bottom crossbeams are spaced apart along the third direction, with the first direction, the second direction, and the third direction being perpendicular to each other; contact surfaces are respectively provided on both sides of the bottom crossbeam along the second direction.

[0010] Preferably, the bottom crossbeam is an H-shaped steel component.

[0011] Preferably, the support frame is a disc-lock scaffold.

[0012] Preferably, the support frame is provided with at least two sets of horizontal scissor braces, which are distributed at intervals along the first direction.

[0013] Preferably, the sealing plate is divided into several sub-plates along its length and width, and adjacent sub-plates are welded together.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a temporary sealing device for jacking construction, which can support the sealing plate inside the tunnel through the base and support frame, and adjust the length of the support frame to make the sealing plate fit with the water-stop frame, thereby sealing the bottom of the drainage riser. Even if the drainage riser is damaged in subsequent construction, the seawater that has flowed into the drainage riser will be difficult to flow further into the tunnel, thus buying time for the evacuation of personnel and construction equipment in the tunnel and protecting the safety of personnel and construction equipment in the tunnel. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a temporary sealing device for jacking construction according to the present invention; Figure 2 This is a partial three-dimensional structural diagram of a temporary sealing device for jacking construction according to this utility model at the sealing plate; Figure 3This is a partial three-dimensional structural diagram of a temporary sealing device for jacking construction according to this utility model at the base. Figure 4 This is a schematic diagram of the planar structure of the support frame of a temporary sealing device for jacking construction according to this utility model; Figure 5 This is a schematic diagram of the vertical structure of a temporary sealing device for jacking construction installed in a tunnel according to this utility model; icon: 1-Sealing plate; 11-Rubber sealing ring; 12-Top crossbeam; 2-Support frame; 21-Adjustable top support; 22-Longitudinal distribution pipe; 23-Adjustable foot pad; 24-Horizontal scissor brace; 3-Base; 31-Bottom crossbeam; 4-Tunnel; 41-Waterstop frame. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0017] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0018] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0019] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0020] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0021] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0022] Example 1 like Figures 1 to 5As shown, a temporary sealing device for jacking construction includes a sealing plate 1, a support frame 2, and a base 3. The sealing plate 1 is arranged with its normal direction along a first direction. The shape and size of the sealing plate 1 and the water-stop frame 41 are matched. A rubber sealing ring 11 is provided on one side of the sealing plate 1, so that when the sealing plate 1 is in contact with the bottom surface of the water-stop frame 41, the sealing plate 1 can isolate the inside of the drainage riser from the inside of the tunnel 4. The support frame 2 is connected to the other side of the sealing plate 1. The length of the support frame 2 is arranged along the first direction and the length of the support frame 2 is adjustable. The base 3 is connected to the end of the support frame 2 away from the sealing plate 1. The end of the base 3 away from the support frame 2 is provided with a contact curved surface. The shape and size of the contact curved surface are matched with the inner wall of the tunnel 4, so that the support frame 2 can be supported on the bottom of the tunnel 4 through its contact curved surface.

[0023] exist Figures 1 to 5 The device also uses a rectangular coordinate system to mark each direction, where arrow X represents the first direction, arrow Y represents the second direction, and arrow Z represents the third direction. When the device is correctly installed in tunnel 4, the first direction is parallel to the height direction, and the third direction is parallel to the longitudinal direction of tunnel 4.

[0024] When using, such as Figure 5 As shown, this device is as follows Figure 5 The sealing plate 1 is placed directly below the water-stop frame 41 inside the tunnel 4, with the sealing plate 1 on top and the base 3 on the bottom, and the contact surface of the base 3 abutting against the inner wall of the tunnel 4. Then, the length of the support frame 2 is adjusted so that the sealing plate 1 gradually approaches and fits against the water-stop frame 41. The bottom of the drainage riser can be sealed by the sealing plate 1 and the rubber sealing ring 11. Even if the drainage riser is damaged in subsequent construction, the seawater flowing into the drainage riser will be difficult to flow further into the tunnel 4, thus buying time for the evacuation of personnel and construction equipment inside the tunnel 4 and protecting the safety of personnel and construction equipment inside the tunnel 4.

[0025] In an optional embodiment, the sealing plate 1 is divided into several sub-plates along its length and width directions to reduce the difficulty of manufacturing, transporting and installing the sealing plate 1; adjacent sub-plates are welded together.

[0026] In optional embodiments, the length adjustment of the support frame 2 can be achieved in various ways, such as: setting a telescopic mechanism on the support frame 2, the telescopic mechanism including but not limited to hydraulic cylinder, air cylinder, screw telescopic mechanism or gear and rack telescopic mechanism, so that the length of the support frame 2 can be changed by telescopic mechanism; or the support frame 2 can be divided into multiple segments along the first direction, and the length of the support frame 2 can be changed by changing the number of segments.

[0027] In an optional embodiment, the support frame 2 is a disc-lock scaffold, which allows for flexible adjustment of the overall length of the support frame 2 using the combined structure of the disc-lock scaffold, thereby enabling the sealing plate 1 to fit tightly against the waterstop frame 41; and the disc-lock scaffold is quick to assemble and disassemble, allowing the device to be in place as soon as possible after the drainage riser is lifted, thus quickly forming protection for personnel and construction equipment inside the tunnel 4.

[0028] In an optional embodiment, an adjustable top support 21 is provided at one end of the support frame 2 near the sealing plate 1. The adjustable top support 21 is movably connected to the support frame 2 via a screw. The length of the screw is set along a first direction. Rotating the screw can drive the adjustable top support 21 to move along the first direction, thereby changing the length of the entire support frame 2. The side of the adjustable top support 21 near the sealing plate 1 is connected to the sealing plate 1, for example, by means of a threaded connector or welding.

[0029] In an optional embodiment, the number of adjustable top supports 21 is at least four, and the adjustable top supports 21 are distributed at intervals along the first direction and the second direction.

[0030] This embodiment can, on the one hand, change the length of the entire support frame 2 by synchronously adjusting the length of each adjusting top support 21, so that the sealing plate 1 can be accurately fitted with the water-stop frame 41; on the other hand, it can also change the tilt direction of the support frame 2 by differentially adjusting the length of each adjusting top support 21, thereby compensating for the tilt of the sealing plate 1 due to uneven terrain, so that the sealing plate 1 can fit better with the water-stop frame 41, and thus better ensure the sealing effect of this embodiment on the drainage riser.

[0031] In an optional embodiment, a top crossbeam 12 is also provided on the side of the sealing plate 1 near the support frame 2; the length of the top crossbeam 12 is provided along the second direction, and several top crossbeams 12 are distributed at intervals along the third direction, with the first direction, the second direction and the third direction being perpendicular to each other; the end of the top crossbeam 12 away from the sealing plate 1 is connected to the adjusting top support 21, for example, by means of a threaded connector or by welding.

[0032] This embodiment can, on the one hand, transfer the load of the sealing plate 1 to the support frame 2 more evenly, reducing the risk of local damage to the sealing plate 1 or the support frame 2 due to local stress concentration; on the other hand, it can also enhance the strength and rigidity of the sealing plate 1, thereby reducing the risk of seawater flowing into the tunnel 4 from the deformation point due to the deformation of the sealing plate 1 under the impact of water flow.

[0033] In an optional embodiment, the top beam 12 is an H-shaped steel component, which can ensure that the top beam 12 has sufficient strength and rigidity to bear the load generated by the components above it, and also allows workers to easily connect it to the sealing plate 1 and the support frame 2 using its flat top surface.

[0034] In an optional embodiment, the end of the adjusting top support 21 near the top crossbeam 12 is connected to a longitudinal distribution pipe 22. The length of the longitudinal distribution pipe 22 is set along the third direction. Several longitudinal distribution pipes 22 are distributed at intervals along the second direction. The end of the longitudinal distribution pipe 22 away from the support frame 2 is connected to the top crossbeam 12, for example, by threaded connection or welding.

[0035] This embodiment can, on the one hand, further distribute the load from the top beam 12 to various parts of the support frame 2 through the longitudinal distribution pipe 22, thereby reducing the risk of local stress concentration causing local damage to the top beam 12 or the support frame 2; on the other hand, it can also enhance the horizontal stability of the support frame 2.

[0036] In an optional embodiment, an adjusting foot pad 23 is provided at the end of the support frame 2 away from the sealing plate 1. The adjusting foot pad 23 is movably connected to the support frame 2 via a screw. The length of the screw is set along a first direction. Rotating the screw can drive the adjusting foot pad 23 to move along the first direction, thereby changing the length of the entire support frame 2. The end of the adjusting foot pad 23 away from the sealing plate 1 abuts against the base 3.

[0037] In an optional embodiment, the number of adjusting pads 23 is at least four, and the adjusting pads 23 are distributed at intervals along the first direction and the second direction.

[0038] This embodiment can, on the one hand, change the length of the entire support frame 2 by synchronously adjusting the length of each adjusting foot pad 23, thereby enhancing the length adjustment capability of the support frame 2; on the other hand, it can also change the tilt direction of the support frame 2 by differentially adjusting the length of each adjusting foot pad 23, thereby compensating for the tilt of the sealing plate 1 due to uneven terrain, so that the sealing plate 1 can fit better with the waterstop frame 41, and thus better ensure the sealing effect of this embodiment on the drainage riser.

[0039] In optional implementations, such as Figure 4 As shown, the support frame 2 is provided with horizontal scissor braces 24 to enhance the horizontal stability of the support frame 2 and improve the load-bearing capacity of the support frame 2; the horizontal scissor braces 24 include two steel pipes arranged in a cross manner, and the axes of the two steel pipes are perpendicular to the first direction; at least two horizontal scissor braces 24 are distributed at intervals along the first direction.

[0040] In an optional embodiment, the base 3 includes a bottom crossbeam 31, the length of which is arranged along a second direction. A plurality of bottom crossbeams 31 are spaced apart along a third direction, with the first direction, second direction, and third direction being mutually perpendicular. Contact surfaces are respectively provided on both sides of the bottom crossbeam 31 along the second direction, thereby enabling... Figure 5 As shown, the support frame 2 is supported inside the tunnel 4 through its two ends along the second direction.

[0041] This embodiment can distribute the load transmitted from the support frame 2 more evenly to the inner wall of the tunnel 4 through multiple bottom crossbeams 31. On the other hand, it can also increase the distance between the bottom crossbeams 31 and the bottom of the tunnel 4, so that the top surface of the bottom crossbeams 31 can reach the specified elevation without significantly increasing the size of the bottom crossbeams 31 along the first direction, thereby reducing unnecessary material consumption.

[0042] In an optional embodiment, the bottom crossbeam 31 is an H-shaped steel component, which can ensure that the bottom crossbeam 31 has sufficient strength and rigidity to bear the load generated by the components above it, and also allows workers to easily use its flat top surface to set up the support frame 2.

[0043] The above content is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A temporary sealing device for jacking construction, characterized in that, include: A sealing plate (1) is provided with its normal direction along a first direction. The shape and size of the sealing plate (1) and the waterstop frame (41) are matched. A rubber sealing ring (11) is provided on one side of the sealing plate (1). A support frame (2) is connected to the other side of the sealing plate (1). The length of the support frame (2) is set along a first direction and the length of the support frame (2) is adjustable. The base (3) is connected to the end of the support frame (2) away from the sealing plate (1). The end of the base (3) away from the support frame (2) is provided with a contact surface. The contact surface matches the shape and size of the inner wall of the tunnel (4).

2. The temporary sealing device for jacking construction according to claim 1, characterized in that, An adjustable top support (21) is provided at one end of the support frame (2) near the sealing plate (1). The adjustable top support (21) is movably connected to the support frame (2) via a screw, and the length of the screw is set along a first direction. The side of the adjustable top support (21) near the sealing plate (1) is connected to the sealing plate (1).

3. A temporary sealing device for jacking construction according to claim 2, characterized in that, The sealing plate (1) is also provided with a top crossbeam (12) on the side near the support frame (2); the length of the top crossbeam (12) is set along the second direction, and several top crossbeams (12) are distributed at intervals along the third direction, with the first direction, the second direction and the third direction being perpendicular to each other; the end of the top crossbeam (12) away from the sealing plate (1) is connected to the adjusting top support (21).

4. A temporary sealing device for jacking construction according to claim 3, characterized in that, The adjusting top support (21) is connected to a longitudinal distribution pipe (22) at one end near the top crossbeam (12). The length of the longitudinal distribution pipe (22) is set along the third direction. Several longitudinal distribution pipes (22) are distributed at intervals along the second direction. The end of the longitudinal distribution pipe (22) away from the support frame (2) is connected to the top crossbeam (12).

5. A temporary sealing device for jacking construction according to claim 1, characterized in that, An adjusting foot pad (23) is provided at one end of the support frame (2) away from the sealing plate (1). The adjusting foot pad (23) is movably connected to the support frame (2) by a screw, the length of which is set along the first direction. The end of the adjusting foot pad (23) away from the sealing plate (1) abuts against the base (3).

6. A temporary sealing device for jacking construction according to any one of claims 1 to 5, characterized in that, The base (3) includes a bottom crossbeam (31), the length of which is set along the second direction, and several bottom crossbeams (31) are distributed at intervals along the third direction, with the first direction, the second direction and the third direction being perpendicular to each other; the bottom crossbeams (31) are respectively provided with contact surfaces on both sides along the second direction.

7. A temporary sealing device for jacking construction according to claim 6, characterized in that, The bottom crossbeam (31) is an H-shaped steel component.

8. A temporary sealing device for jacking construction according to any one of claims 1 to 5, characterized in that, The support frame (2) is a disc-lock scaffold.

9. A temporary sealing device for jacking construction according to claim 8, characterized in that, The support frame (2) is provided with at least two sets of horizontal scissor braces (24), which are distributed at intervals along the first direction.

10. A temporary sealing device for jacking construction according to any one of claims 1 to 5, characterized in that, The sealing plate (1) is divided into several sub-plates along its length and width, and adjacent sub-plates are welded together.

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