A device for maintaining a bridge abutment

Abstract

The utility model relates to bridge construction technology field especially relates to a kind of maintenance device of bridge cushion stone, including water-retaining layer, diversion layer and sunscreen layer, water-retaining layer covers and is attached on the surface of cushion stone, diversion layer is set outside water-retaining layer, diversion layer is equipped with several water drop holes, sunscreen layer is set apart outside diversion layer, sunscreen layer and diversion layer form interlayer cavity between, interlayer cavity connects water supply mechanism. Water-retaining layer adsorbs moisture to carry out overall covering to cushion stone, maintains the overall humidity stability of cushion stone, simultaneously, through the drip water maintenance structure formed by diversion layer, reduce water consumption, and reduce moisture loss rate, simultaneously, through sunscreen layer to the shielding of cushion stone, avoid sunlight irradiation to cause cushion stone temperature excessively high and the excessive large temperature difference on both sides of cushion stone, play heat insulation cooling effect, through water-retaining layer, diversion layer and sunscreen layer combination, the humidity and temperature variation of cushion stone maintenance environment can be reduced, and the construction quality of cushion stone is improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a maintenance device for bridge pad stones. Background Technology

[0002] Bridge pad stones are concrete structures placed on the top of bridge abutments and piers, connecting to the supports. During the construction of bridge pad stones on high-speed railway piers in the hot summer, the environment in which the bridge pad stones are located is prone to rapid changes in humidity and uneven lighting. The pad stones are also subject to temperature differences caused by strong sunlight on one side and relatively dark light on the other side under constantly changing wet and dry conditions. Shrinkage cracks are very likely to appear on the surface, affecting the construction quality of the pad stones and prolonging the construction period. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies, such as the tendency of bridge pad stones to develop shrinkage cracks due to the constantly changing wet and dry environment and temperature differences on both sides, which affects the construction quality of the pad stones and prolongs the construction period. This invention provides a maintenance device for bridge pad stones.

[0004] This utility model provides a maintenance device for bridge abutment stones, comprising: A water-retaining layer, which covers and adheres to the surface of the pad stone, and the water-retaining layer includes a fabric material component; A flow guiding layer is provided outside the water-retaining layer, and the flow guiding layer is provided with a plurality of drip holes; A sun protection layer is provided, which covers the outside of the flow guiding layer. A cavity is formed between the sun protection layer and the flow guiding layer, and a water supply mechanism is provided in the cavity.

[0005] Preferably, the diversion layer covers the water-retaining layer, and the sun protection layer is the diversion layer.

[0006] Preferably, the water-retaining layer comprises a non-woven geotextile layer, the drainage layer comprises a plastic film layer, and the sun-protecting layer comprises at least one layer of black shade netting.

[0007] Preferably, a reflective layer is provided on a portion of the sun protection layer.

[0008] Preferably, the system further includes a support frame that spans across the pad stone, supporting the flow-guiding layer and the water-retaining layer at intervals. The support frame supports the flow-guiding layer, creating a space between it and the water-retaining layer.

[0009] Preferably, the bracket is provided with a support member, which supports the sun protection layer and the diversion layer at a distance. The support member supports the sun protection layer, thus creating a space between the sun protection layer and the diversion layer.

[0010] Preferably, the water supply mechanism includes a water tank, which is set on the pad stone or the support. The water tank is provided with a water inlet and a water outlet pipe, and the water outlet pipe is connected to the interlayer cavity.

[0011] Preferably, the guide layer is provided with a plurality of water collection grooves, and the drip hole is disposed in the water collection grooves.

[0012] Preferably, the water outlet pipe includes several branch pipes, which are connected to the water collection groove.

[0013] Preferably, the water inlet is connected to a water inlet pipe, and a float valve is provided at one end of the water inlet pipe that connects to the water tank.

[0014] Preferably, the water inlet pipe extends to the ground on the side of the bridge pier, and a quick connector is provided at the end of the water inlet pipe away from the water tank.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a maintenance device for bridge pad stones, which absorbs moisture through a water-retaining layer to cover the pad stones completely, so that the pad stones are kept moist throughout the maintenance period and the overall humidity of the pad stones is kept stable. 2. This utility model provides a maintenance device for bridge pad stones, which guides the water flow input by the water supply mechanism to the water retention layer through the flow guiding layer to form a drip water maintenance structure, which can reduce water consumption and reduce the rate of water loss. 3. This utility model provides a maintenance device for bridge pad stones. By using a sun-proof layer to shield the pad stones, it can prevent the pad stones from getting too hot due to sunlight exposure and avoid excessive temperature differences on both sides of the pad stones, thus playing a role in heat insulation and cooling. 4. This utility model provides a maintenance device for bridge pad stones. By combining a water-retaining layer, a flow-guiding layer, and a sun-protecting layer, it can reduce the humidity and temperature changes in the pad stone maintenance environment and improve the construction quality of the pad stones. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a bridge pad stone maintenance device according to Example 1. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the structure of a bridge pad stone maintenance device according to Example 1. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the water supply mechanism described in Example 1.

[0019] Figure 4 This is a schematic diagram of the flow guide layer and the water outlet pipe described in Example 1.

[0020] Figure 5This is a diagram showing the usage status of a bridge pad stone maintenance device according to Example 1.

[0021] Marked in the image: 1-Water-retaining layer, 2-Flow guiding layer, 21-Drip hole, 22-Water collection groove, 3-Sun protection layer, 4-Interlayer cavity, 5-Water supply mechanism, 51-Water tank, 52-Water inlet, 53-Water outlet pipe, 54-Branch pipe, 55-Water inlet pipe, 56-Float valve, 57-Quick connector, 6-Reflective layer, 7-Bracket, 71-Support component, 100-Stone pad. Detailed Implementation

[0022] 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.

[0023] Unless otherwise specified, the terms "upper," "lower," "left," "right," "center," "inner," and "outer" used in the description of specific embodiments of this utility model to indicate orientation or positional relationships are 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 usually 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, and for 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.

[0024] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, 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%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0025] 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.

[0026] 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.

[0027] 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," "provided 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.

[0028] Example 1 like Figures 1-5As shown, a maintenance device for bridge pad stones includes a water-retaining layer 1, a flow-guiding layer 2, and a sun-protecting layer 3 arranged sequentially from the inside to the outside. The water-retaining layer 1 covers and adheres to the surface of the pad stone 100. The flow-guiding layer 2 is disposed outside the water-retaining layer 1 and has a plurality of drip holes 21. The sun-protecting layer 3 is disposed at intervals outside the flow-guiding layer 2. A sandwich cavity 4 is formed between the sun-protecting layer 3 and the flow-guiding layer 2. A water supply mechanism 5 is provided in the sandwich cavity 4.

[0029] The water-retaining layer 1 is used to cover the entire pad stone 100 and retain moisture so that the pad stone 100 can remain moist during the curing period, maintaining the overall humidity stability of the pad stone 100; the diversion layer 2 is set outside the water-retaining layer 1 to slow down the rate of water loss from the water-retaining layer 1, reduce water consumption, and disperse the water flow input by the water supply mechanism 5 to the water-retaining layer 1 through the drip holes 21 to form a drip curing structure, so that the water-retaining layer 1 can continuously maintain a relatively uniform humidity state; the sun-proof layer 3 is used to completely shield the pad stone 100, which can prevent the pad stone 100 from getting too hot due to sunlight and prevent excessive temperature difference between the two sides of the pad stone 100, thus playing a role in heat insulation and cooling, and preventing early cracking of the concrete of the pad stone 100.

[0030] In optional implementations, such as Figure 1 As shown, the flow guiding layer 2 can completely cover the water retention layer 1, and the sun protection layer 3 can completely cover the flow guiding layer 2 to form a multi-layer integrated shielding structure for the maintenance device, so that the function of each layer structure is maximized, the humidity and temperature of the maintenance environment of the pad stone 100 are suitable, and the quality of the maintenance and forming of the pad stone 100 is improved.

[0031] In an optional embodiment, the water-retaining layer 1 can be a non-woven geotextile layer, the flow-guiding layer 2 can be a plastic film layer, and the sun-protecting layer 3 can be at least one layer of black shade netting. Non-woven geotextiles are widely used in concrete curing processes and have good water retention effects. Plastic films are widely available and inexpensive, and can reduce water loss from the geotextile. In this embodiment, the impermeability of the plastic film guides the water flow to the drip holes 21, which then deliver the water to the corresponding geotextile, thus also guiding and distributing the water flow. The black shade netting is inexpensive and has good sun protection effects, providing overall shading for the pad stone 100 and effectively preventing direct sunlight from irradiating the pad stone 100 and causing temperature difference cracks.

[0032] In an optional embodiment, a reflective layer 6 is provided on a portion of the sun protection layer 3. The reflective layer 6 can be a reflective film attached to the shade net. The reflective film can be attached to the side area of ​​the shade net. By attaching the reflective layer 6 to a portion of the shade net, the influence of sunlight on the temperature of the space around the pad stone 100 can be further reduced, and excessive temperature differences between different sides of the pad stone 100 can be avoided.

[0033] In an optional embodiment, the reflective layer 6 can also be disposed on the top surface area of ​​the shade net to further reduce the temperature impact of the pad stone 100 under sunlight.

[0034] In one or more implementations, such as Figure 2 As shown, it also includes a support 7, which can be straddled on the pad stone 100 and can support the flow guiding layer 2 and the water retention layer 1 at intervals.

[0035] In an optional embodiment, the support 7 can be a frame structure composed of perforated steel bars or angle steel. The steel bars or angle steel of corresponding lengths can be assembled and combined according to the size of the pad stone 100 to form supports 7 of different structural sizes. The support 7 enables the stable setting of the flow guiding layer 2 and the sun protection layer 3 on the outside of the pad stone 100.

[0036] In an optional embodiment, a support member 71 can be provided on the bracket 7. The support member 71 can support the sunshade layer 3 and the flow guiding layer 2 at intervals. The support member 71 can be set on the top of the bracket 7 and pass through the flow guiding layer 2. The sunshade layer 3 is supported by the support member 71 and maintains a stable interval with the flow guiding layer 2, so that a cavity 4 is formed between the sunshade layer 3 and the flow guiding layer 2. This facilitates the setting of the water supply mechanism 5. Furthermore, when the sun shines on the pad stone 100 from one side, the air of different temperatures in the cavity 4 on both sides of the pad stone 100 can flow back and forth, reducing the actual temperature difference on both sides of the surface of the pad stone 100 and effectively avoiding cracks caused by temperature differences, thereby improving the maintenance quality of the pad stone 100.

[0037] In an optional embodiment, the bracket 7 may be a frame structure, and the support member 71 may be a frame structure or a vertical rod disposed on the top of the bracket 7.

[0038] In optional implementations, such as Figure 3 As shown, the water supply mechanism 5 includes a water tank 51, which is provided with a water inlet 52 and a water outlet pipe 53. The water outlet pipe 53 is connected to the interlayer cavity 4.

[0039] In an optional embodiment, the water tank 51 can be set on the pad stone 100 or the bracket 7 to form a high-level water tank 51. The water in the water tank 51 can be output from the outlet pipe 53 under the action of gravity and flow to the lower guide layer 2. It can drip into the water retention layer 1 through the drip holes 21 distributed on the guide layer 2. The structure is simple and reduces power consumption.

[0040] In an optional embodiment, the water tank 51 can be set on the pad stone 100, located between the sun protection layer 3 and the flow guiding layer 2, and the water tank 51 supports the formation of a sandwich cavity 4 between the flow guiding layer 2 and the sun protection layer 3.

[0041] In an optional embodiment, the water tank 51 can be mounted on the bracket 7. The bracket 7 maintains a stable gap between the flow guiding layer 2, the sun protection layer 3, and the water retention layer 1, thereby improving the structural stability of the maintenance device and enhancing the maintenance effect of the pad stone 100. When the water tank 51 is mounted on the bracket 7, the flow guiding layer 2 can be provided with through holes adapted to the water tank 51 to avoid the water tank 51.

[0042] In optional implementations, such as Figure 4 As shown, the flow guiding layer 2 is provided with several water collecting grooves 22, and drip holes 21 are set in the water collecting grooves 22. The water outlet pipe 53 includes several branch pipes 54, which are connected to the water collecting grooves 22. The water flow is guided by the branch pipes 54 to concentrate the water flow to each water collecting groove 22 on the flow guiding layer 2, so that the water flow distribution is more uniform and water waste is reduced.

[0043] In an optional embodiment, the flow guiding layer 2 of the plastic film can form multiple water collection grooves 22 by the support frame of the mesh structure set on the bracket 7 in conjunction with the extensibility of the plastic film. A drip hole 21 is punched in the middle of each water collection groove 22. The water outlet pipe 53 can be laid according to the actual situation. The water outlet pipe 53 can include a main pipe and several branch pipes 54 radially set on the main pipe. The length of the branch pipes 54 can be distributed according to the position of the water collection groove 22 to realize the directional guidance of water flow.

[0044] In an optional embodiment, the water collection groove 22 may also be a groove structure formed by pressing the guide layer 2 in advance during the preparation process.

[0045] In optional implementations, such as Figure 3 , Figure 5 As shown, the water inlet 52 can be connected to a water inlet pipe 55, and a float valve 56 can be installed at one end of the water inlet pipe 55 that connects to the water tank 51. This allows the water tank 51 to be closed quantitatively when water is added, preventing excessive water overflow and reducing the difficulty of adding water.

[0046] In an optional embodiment, the water inlet pipe 55 can extend to the ground on the side of the bridge pier, and a quick connector 57 is provided at the end of the water inlet pipe 55 away from the water tank 51. By lengthening the water inlet pipe 55, workers can replenish water to the water tank 51 from the ground using pressurized water supply equipment, reducing the process of workers climbing to higher places to replenish water, lowering the difficulty of replenishing water, and improving construction efficiency.

[0047] The above description 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 maintenance device for bridge pad stones, characterized in that, include: A water-retaining layer (1) is attached to the surface of the pad stone (100); A flow guiding layer (2) is provided on the outside of the water-retaining layer (1), and the flow guiding layer (2) is provided with a plurality of drip holes (21); A sun protection layer (3) is provided on the outside of the flow guiding layer (2). A cavity (4) is formed between the sun protection layer (3) and the flow guiding layer (2). A water supply mechanism (5) is provided in the cavity (4).

2. The maintenance device for bridge pad stones according to claim 1, characterized in that, The water-retaining layer (1) includes a non-woven geotextile layer, the drainage layer (2) includes a plastic film layer, and the sun protection layer (3) includes at least one layer of black shade netting.

3. The maintenance device for bridge pad stones according to claim 2, characterized in that, The sun protection layer (3) is partially provided with a reflective layer (6).

4. A maintenance device for bridge pad stones according to any one of claims 1-3, characterized in that, It also includes a support (7) that can be straddled on the pad stone (100) and supports the flow guiding layer (2) and the water retention layer (1) at intervals.

5. The maintenance device for bridge pad stones according to claim 4, characterized in that, The bracket (7) is provided with a support member (71), which supports the sun protection layer (3) and the flow guiding layer (2) at intervals.

6. The maintenance device for bridge pad stones according to claim 4, characterized in that, The water supply mechanism (5) includes a water tank (51), which is set on the pad stone (100) or the bracket (7). The water tank (51) is provided with a water inlet (52) and a water outlet pipe (53), which is connected to the interlayer cavity (4).

7. A maintenance device for bridge pad stones according to claim 6, characterized in that, The guide layer (2) is provided with a plurality of water collection grooves (22), and the drip hole (21) is provided in the water collection grooves (22).

8. A maintenance device for bridge pad stones according to claim 7, characterized in that, The water outlet pipe (53) includes several branch pipes (54), which are connected to the water collection groove (22).

9. A maintenance device for bridge pad stones according to claim 6, characterized in that, The water inlet (52) is connected to a water inlet pipe (55), and a float valve (56) is provided at one end of the water inlet pipe (55) that connects to the water tank (51).

10. A maintenance device for bridge pad stones according to claim 9, characterized in that, The water inlet pipe (55) extends to the ground on the side of the bridge pier, and a quick connector (57) is provided at the end of the water inlet pipe (55) away from the water tank (51).

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