A hydraulic structure expansion joint flattening structure and flattening method

Abstract

The present invention provides a hydraulic structure expansion joint flattening structure and a flattening method, belonging to the technical field of water conservancy and hydropower engineering. The flattening structure includes a hydraulic structure and a flattening assembly. The hydraulic structure is built between the two banks of a river, and the hydraulic structure has a plurality of expansion joints. The flattening assembly is arranged in the expansion joint, and the flattening assembly includes a pipe network and a caulking material. The water outlet and the water inlet of the pipe network are both connected to the hydraulic structure facing the upstream of the river. The pipe wall of the pipe network is covered with through holes, and the caulking material is filled between the expansion joints of the pipe network. The expansion joint flattening structure can make the water pressure in the seam between the expansion joints of the hydraulic structure reach the hydrostatic pressure, and the pressure change of the water pressure in the seam is synchronized with the water pressure change in the upstream or downstream, ensuring that the actual application of the hydraulic structure is consistent with the design working conditions, and improving stability and safety.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy and hydropower engineering, and in particular to a flattening structure and a flattening method for an expansion joint of a hydraulic structure. Background Art

[0002] An expansion joint is a structural joint set at an appropriate position along the construction joint direction of a building or structure to prevent cracks or damage between building components due to climate temperature changes (thermal expansion and contraction). In water conservancy and hydropower projects, expansion joints are usually set between the side joints and middle joints of hydraulic structures such as multi-unit power stations, pump station buildings and multi-unit sluices. The expansion joints of hydraulic structures are usually sealed with caulking materials.

[0003] In the related art, in order to ensure the function of the expansion joint, a flexible caulking material is usually filled in the expansion joint. However, since the overall concrete structure of the hydraulic structure is relatively large, and the width of the permanent joint surface of the side joints and the middle joints may expand and contract when the temperature changes, there will inevitably be gaps between the caulking materials filled in the expansion joint, so some water will still seep into the expansion joint. When the water level upstream and downstream of the hydraulic structure changes, the water level and water pressure in the expansion joint will also change. In the design process of hydraulic structures, the change of water pressure in the expansion joint is usually taken into account in the calculation of the stability of the side joint, so as to reduce the span of the side joint and save engineering work.

[0004] Since the expansion joint is very narrow, generally about 2 cm, and the joint is filled with caulking materials, the water pressure in the joint is closer to the pore water pressure, and its change is not synchronized with the water level change upstream and downstream of the hydraulic structure. If the static water pressure between the joints is considered according to the conventional design when calculating the stability of the side joint, when the safety factor is just met, the side joint may fail to meet the stability requirements in actual operation due to the excessive change of the value of the water pressure gauge between the joints, while the actual downstream water pressure change is small, and then the hydraulic structure will have safety problems in actual operation. Summary of the invention

[0005] The embodiment of the present invention provides a hydraulic structure expansion joint flattening structure and flattening method, which can make the water pressure in the expansion joints of the hydraulic structure reach the hydrostatic pressure, and the pressure change of the water pressure in the joint is synchronized with the water pressure change upstream, ensuring that the actual application of the hydraulic structure is consistent with the design working conditions, and improving stability and safety. The technical solution is as follows:

[0006] In a first aspect, an embodiment of the present invention provides a hydraulic structure expansion joint flat pressure structure, comprising:

[0007] A hydraulic structure is constructed between the two banks of a river and has a plurality of expansion joints.

[0008] A leveling component is arranged in the expansion joint, and the leveling component includes a pipe network and caulking materials. The water inlet and the water outlet of the pipe network are both connected to the end face of the hydraulic structure facing the upstream of the river body. The pipe wall of the pipe network is covered with through holes, and the caulking material is filled between the pipe network and the expansion joint.

[0009] Optionally, the diameter of the pipe network is smaller than the width of the expansion joint.

[0010] Optionally, the outer wall of the pipe network is covered with kraft paper.

[0011] Optionally, the pipe network includes multiple groups of first drainage pipes and multiple groups of second drainage pipes, the multiple groups of first drainage pipes and the multiple groups of second drainage pipes are connected to each other, the first drainage pipes are arranged in a horizontal direction, one end of the first drainage pipe is connected to an end of the hydraulic structure facing the upstream of the river body, and the other end of the first drainage pipe is closed, each group of the first drainage pipes includes a plurality of the first drainage pipes arranged in parallel in the vertical direction, the multiple groups of first drainage pipes are arranged at intervals in the vertical direction, the second drainage pipes are arranged in the vertical direction, each group of the second drainage pipes includes a plurality of the second drainage pipes arranged in parallel in the horizontal direction, the multiple groups of second drainage pipes are arranged at intervals in the horizontal direction, and both ends of the second drainage pipes are closed.

[0012] Optionally, each group of the first drain pipes includes three first drain pipes; and each group of the second drain pipes includes three second drain pipes.

[0013] Optionally, the multiple groups of first drain pipes are arranged at equal intervals, the multiple groups of second drain pipes are arranged at equal intervals, and the interval between two adjacent groups of the first drain pipes is equal to the interval between two adjacent groups of the second drain pipes.

[0014] Optionally, the distance between two adjacent groups of the first drainage pipes ranges from 1 m to 2 m.

[0015] Optionally, in the extension direction of the pipe network, the distance between two adjacent through holes ranges from 3 cm to 5 cm.

[0016] Optionally, the caulking material is a closed-cell foam board.

[0017] In a second aspect, an embodiment of the present invention further provides a flattening method, which is applicable to the flattening structure of the expansion joint of the hydraulic structure described in the first aspect, and the flattening method comprises:

[0018] Constructing the hydraulic structure in a water body flowing in a horizontal direction;

[0019] The pipe network is arranged in the expansion joint of the hydraulic structure, and the caulking material is fixedly filled between the multiple groups of first drainage pipes and the multiple groups of second drainage pipes, and between the pipe network and the expansion joint, so that the water pressure change in the expansion joint is synchronized with the water pressure change of the water body.

[0020] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention include at least:

[0021] After the construction of the hydraulic structure with a multi-joint structure is completed, in the direction of the flow of the river water, most of the water flow located upstream of the hydraulic structure is blocked by the side joints and middle joints of the hydraulic structure. By setting a flattening assembly in the expansion joint between the middle joint and the side joint, most of the space in the expansion joint is filled and sealed with caulking materials. By setting a pipe network with through holes on the pipe wall between the caulking materials, the pipe network is composed of drainage pipes that are interconnected. By connecting multiple water inlets and water outlets of the pipe network with the end face of the hydraulic structure facing the upstream of the river body, the water flow flowing from the upstream to the downstream of the hydraulic structure can flow freely in the pipe network under the guidance of the drainage pipe after entering from the water inlet of the pipe network, and then flow out from the water outlet of the pipe network and be discharged into the upstream water body. The water that penetrates into the gap of the caulking material can also enter the pipe of the pipe network through the through holes on the pipe network, and flow to the upstream water body of the hydraulic structure together with the water flow in the pipe network. Compared with the infiltration flow between the gaps of the caulking materials, the water in the expansion joints can be absorbed, diverted and discharged by the pipe network arranged in the caulking materials, making the water flow in the expansion joints smoother. The water level in the pipe network can change in real time according to the water level changes upstream of the hydraulic structure, so that the water pressure in the expansion joints of the hydraulic structure reaches the hydrostatic pressure, and the pressure change of the water pressure in the joints is synchronized with the water pressure change upstream, ensuring that the actual application of the hydraulic structure is consistent with the design conditions, thereby improving the operational stability and safety of the hydraulic structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a front view structural schematic diagram of a hydraulic structure provided by an embodiment of the present invention;

[0024] Figure 2 It is a side structural cross-sectional view of an expansion joint of a hydraulic structure provided by an embodiment of the present invention;

[0025] Figure 3is a structural cross-sectional view of a group of first drainage pipes provided by an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of a local structure of a pipe network provided by an embodiment of the present invention;

[0027] Figure 5 It is a flow chart of a pressure leveling method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] In the related art, in order to ensure the function of the expansion joint, a flexible caulking material is usually filled in the expansion joint. However, since the overall concrete structure of the hydraulic structure is relatively large, and the width of the permanent joint surface of the side joints and the middle joints may expand and contract when the temperature changes, there will inevitably be gaps between the caulking materials filled in the expansion joint, so some water will still seep into the expansion joint. When the water level upstream and downstream of the hydraulic structure changes, the water level and water pressure in the expansion joint will also change. In the design process of hydraulic structures, the change of water pressure in the expansion joint is usually taken into account in the calculation of the stability of the side joint, so as to reduce the span of the side joint and save engineering work.

[0030] Since the expansion joint is very narrow, generally about 2 cm, and the joint is filled with caulking materials, the water pressure in the joint is closer to the pore water pressure, and its change is not synchronized with the water level change upstream and downstream of the hydraulic structure. If the static water pressure between the joints is considered according to the conventional design when calculating the stability of the side joint, when the safety factor is just met, the side joint may fail to meet the stability requirements in actual operation due to the excessive change of the value of the water pressure gauge between the joints, while the actual downstream water pressure change is small, and then the hydraulic structure will have safety problems in actual operation.

[0031] Figure 1 It is a front view structural schematic diagram of a hydraulic structure provided by an embodiment of the present invention. Figure 2 The present invention is a side structural cross-sectional view of an expansion joint of a hydraulic structure provided by an embodiment of the present invention. Figure 3 It is a structural cross-sectional view of a group of first drainage pipes provided in an embodiment of the present invention. Figure 4 FIG. 1 is a schematic diagram of a local structure of a pipe network provided by an embodiment of the present invention. Figures 1 to 4 As shown, through practice, the applicant provides a hydraulic structure expansion joint flattening structure, including a hydraulic structure 1 and a flattening assembly 2.

[0032] The hydraulic structure 1 is constructed between the two banks of the river, and has a plurality of expansion joints 13. For example, in the embodiment of the present invention, the hydraulic structure 1 includes two side joints 11 and a middle joint 12. The middle joint 12 is located between the two side joints 11, and the two side joints 11 are used to connect to the land on both sides of the water body, and there is an expansion joint 13 between the middle joint 12 and the side joints 11.

[0033] The leveling assembly 2 is arranged in the expansion joint 13, and the leveling assembly 2 includes a pipe network 21 and a caulking material 22. The water inlet and the water outlet of the pipe network 21 are both connected to the end surface of the hydraulic structure 1 facing the upstream of the river body. The pipe wall of the pipe network 21 is covered with through holes 21a, and the caulking material 22 is filled between the pipe network 21 and the expansion joint 13.

[0034] For example, in a water conservancy and hydropower project, the hydraulic structure 1 includes a multiple power station, a pump station plant, a multiple sluice gate, etc. The embodiment of the present invention is described by taking a multiple sluice gate as an example.

[0035] In the embodiment of the present invention, after the construction of the hydraulic structure 1 with a multi-joint structure is completed, in the direction of the flow of the river water, the water flow located upstream of the hydraulic structure 1 is mostly blocked by the side joints 11 and the middle joints 12 of the hydraulic structure 1. By setting the leveling component 2 in the expansion joint 13 between the middle joint 12 and the side joint 11, most of the space in the expansion joint 13 is filled and sealed with the caulking material 22. And by setting the pipe network 21 with through holes 21a on the pipe wall between the caulking materials 22, the pipe network 21 is composed of drainage pipes that are interconnected. By connecting the multiple water inlets and water outlets of the pipe network 21 with the end face of the hydraulic structure 1 facing the upstream of the river body, the water flow flowing from the upstream to the downstream of the hydraulic structure 1 can flow freely in the pipe network 21 under the guidance of the drainage pipe after entering from the water inlet of the pipe network 21, and then flow out from the water outlet of the pipe network 21 and be discharged into the upstream water body. The water that penetrates into the gaps of the caulking material 22 can also enter the pipes of the pipe network 21 through the through holes 21a on the pipe network 21, and flow to the upstream water body of the hydraulic structure along with the water flow in the pipe network. Compared with the infiltration flow between the gaps of the caulking material 22, the pipe network 21 arranged in the caulking material 22 absorbs, guides and discharges the water between the gaps, so that the water flow in the expansion joint 13 is smoother. The water level in the pipe network 21 can change in real time according to the water level change upstream of the hydraulic structure 1, so that the water pressure in the gaps between the expansion joints 13 of the hydraulic structure reaches the hydrostatic pressure, and the pressure change of the water pressure in the gaps is synchronized with the water pressure change upstream, ensuring that the actual application of the hydraulic structure is consistent with the design working conditions, thereby improving the operational stability and safety of the hydraulic structure.

[0036] Optionally, the pipe diameter of the pipe network 21 is smaller than the width of the expansion joint 13. Exemplarily, when the side joint 11 and the middle joint 12 of the hydraulic structure 1 undergo relative horizontal expansion and contraction when the temperature changes, resulting in the overall reduction of the width of the expansion joint 13, the concrete structure of the side joint 11 and the middle joint 12 may cause extrusion to the pipe network 21, resulting in damage to the pipe network 21, affecting the conduction and leveling effect of the pipe network 21 on the water flow. In an embodiment of the present invention, by setting the pipe diameter of the pipe network 21 to be smaller than the width of the expansion joint 13. A certain gap and margin can be reserved between the pipe network 21 and the side joint 11 and the middle joint 12 to avoid the concrete structure immediately extruding the pipe network 21 when the width of the expansion joint 13 is reduced as a whole. At the same time, the flexible caulking material 22 filled between the pipe network 21 and the side joint 11 and the middle joint 12 can also buffer the stress generated by the extrusion, avoid damage to the pipe network 21, and increase the service life of the expansion joint leveling structure.

[0037] Optionally, a kraft paper 23 is sleeved on the outer wall of the pipe network 21. For example, in the embodiment of the present invention, a layer of kraft paper 23 is sleeved on the outer wall of the pipe of the pipe network 21. When the pipe network 21 is assembled and buried, the through holes 21a on the pipe wall of the pipe network 21 can be prevented from being blocked by mud. When the pipe network 21 actually starts to operate, the kraft paper will rot after being soaked in water for a period of time and will be discharged from the pipe network 21 along with the water flow, thereby realizing the automatic connection between the through holes 21a of the pipe network 21 and the caulking material 22 when in use, thereby improving the practicality of the expansion joint flat-pressing structure.

[0038] Optionally, the pipe network 21 includes multiple groups of first drainage pipes 211 and multiple groups of second drainage pipes 212, and the multiple groups of first drainage pipes 211 and the multiple groups of second drainage pipes 212 are connected to each other. The first drainage pipes 211 are arranged in the horizontal direction, one end of the first drainage pipes 211 is connected to the end face of the hydraulic structure 1 facing the upstream of the river body, and the other end of the first drainage pipe 211 is closed. Each group of first drainage pipes 211 includes multiple first drainage pipes 211 arranged in parallel in the vertical direction, the multiple groups of first drainage pipes 211 are arranged at intervals in the vertical direction, and the second drainage pipes 212 are arranged in the vertical direction. Each group of second drainage pipes 212 includes multiple second drainage pipes 212 arranged in parallel in the horizontal direction, and the multiple groups of second drainage pipes 212 are arranged at intervals in the horizontal direction, and both ends of the second drainage pipes 212 are closed.

[0039] For example, in the embodiment of the present invention, the pipe network 21 is composed of multiple groups of first drainage pipes 211 and multiple groups of second drainage pipes 212 that are interlaced and connected to each other, and the ends of the multiple groups of first drainage pipes 211 close to the upstream of the river body are connected to the end face of the hydraulic structure 1 facing the upstream of the river body, while the ends of the multiple groups of first drainage pipes 211 close to the downstream of the river body are closed, or filled and closed by the caulking material 22. That is, on the end face of the hydraulic structure 1 facing the upstream of the river body, the connecting ports of the multiple groups of first drainage pipes 211 can be used as the water inlet for the river water to enter the pipe network 21, and can also be used as the water outlet for the river water to flow out of the pipe network 21. The second drain pipe 212 is arranged in the vertical direction, and one end of the second drain pipe 212 close to the top of the expansion joint 13 is connected to the group of first drain pipes 211 located at the top, and one end of the second drain pipe 212 close to the bottom of the expansion joint 13 is connected to the group of first drain pipes 211 located at the bottom, playing the role of connecting multiple groups of first drain pipes 211 in series in the vertical direction in the pipe network 21, so that water can flow freely in the staggered and connected pipe network 21.

[0040] For example, in the embodiment of the present invention, both ends of the second drain pipe 212 are in a closed state. The second drain pipe 212 can be connected to the first drain pipe 211 through one end and sealed by the pipe wall of the first drain pipe 211, or directly filled and sealed by the caulking material 22.

[0041] Optionally, each group of first drain pipes 211 includes three first drain pipes 211; each group of second drain pipes 212 includes three second drain pipes 212. Exemplarily, since the overall width of the expansion joint 13 is narrow, it is usually 2 cm. The pipe diameter and flow rate of the first drain pipe 211 or the second drain pipe 212 in the pipe network 21 are also very small. If the number of pipes in each group of first drain pipes 211 or second drain pipes 212 is set too small, the pipe network 21 will always be in a fully loaded state, resulting in a slow change in water pressure, which cannot keep pace with the change in water pressure upstream or downstream, resulting in poor pressure equalization effect; and if the number of parallel pipes is set too much, there are disadvantages such as high material cost and troublesome installation or disassembly maintenance. In the embodiment of the present invention, the applicant has found through repeated designs and experiments that for expansion joints 13 with a common seam width range of about 2 cm, the pipe network 21 composed of three first drainage pipes 211 arranged in parallel in each group and three second drainage pipes 212 arranged in parallel in each group can ensure the leveling effect of the leveling component 2. At the same time, the number of pipes is reasonable, and installation, disassembly and maintenance are convenient.

[0042] Exemplarily, in other possible implementations, according to the overall size of the actual hydraulic structure 1 and the turbulence of the actual river, lake or other water body, the number of pipes in each group of first drain pipes 211 and second drain pipes 212 may also be adaptively changed, as long as the pressure-leveling and regulating effect of the water pressure in the expansion joint can be guaranteed, and the present invention is not limited to this.

[0043] Optionally, multiple groups of first drainage pipes 211 are arranged at equal intervals, multiple groups of second drainage pipes 212 are arranged at equal intervals, and the interval between two adjacent groups of first drainage pipes 211 is equal to the interval between two adjacent groups of second drainage pipes 212. For example, in an embodiment of the present invention, multiple groups of first drainage pipes 211 and multiple groups of second drainage pipes 212 are interconnected to form a grid-like pipe network 21. By adopting an arrangement of equal intervals, the water pressure of each part of the water flow between the expansion joints 13 changes more evenly when flowing, further improving the operational stability and safety of the hydraulic structure.

[0044] Optionally, the spacing between two adjacent groups of first drainage pipes 211 ranges from 1m to 2m. Exemplarily, in the embodiment of the present invention, the spacing between two adjacent groups of first drainage pipes 211 and the spacing between two adjacent groups of second drainage pipes 212 can range from 1m to 2m. This range is determined by the applicant through repeated designs and tests, and can ensure the leveling effect of the leveling assembly 2, while the number of pipes is reasonable, and installation, disassembly and maintenance are convenient.

[0045] Optionally, in the extension direction of the pipe network 21, the spacing between two adjacent through holes 21a ranges from 3 cm to 5 cm. This range is determined by the applicant through repeated designs and tests, and can ensure the leveling effect of the leveling component 2, while ensuring the mechanical strength of the first drain pipe 211 and the second drain pipe 212 in the pipe network 21, further improving the service life of the expansion joint leveling structure.

[0046] Optionally, the caulking material 22 is a closed-cell foam board. For example, the closed-cell foam board has an independent closed-cell bubble structure, and the honeycomb-like holes are evenly distributed. It is firmly and tightly bonded to the cement and is tightly connected to the concrete structure. It can naturally adapt to the expansion and contraction changes of the concrete structure and enhance the expansion and water-stopping effect. At the same time, the surface water absorption rate is low, the anti-penetration performance is good, and it has acid, alkali and organic solvent corrosion resistance, which can effectively improve the service life of the expansion joint flat-pressed structure.

[0047] For example, in the embodiment of the present invention, the first drain pipe 211 and the second drain pipe 212 are both PVC water pipes. The PVC water pipes made of polyvinyl chloride resin have the characteristics of light weight, convenient handling and loading and unloading, corrosion resistance, small fluid resistance, good pressure resistance, impact resistance and tensile strength, etc. At the same time, the cost is low, and while ensuring the service life of the pipe network 21, the construction cost of the entire expansion joint flat pressure structure is reduced.

[0048] For example, in the embodiment of the present invention, the connection position of the first drain pipe 211 and the second drain pipe 212 divides the first drain pipe 211 into a plurality of first pipe segments 211a, and the connection position of the second drain pipe 212 and the first drain pipe 211 divides the second drain pipe 212 into a plurality of second pipe segments 212a, and two adjacent first pipe segments 211a and two adjacent second pipe segments 212a are connected through a plane cross 3. By setting the first drain pipe 211 and the second drain pipe 212 as a segmented assembly structure, transportation is convenient, and the pipe network 21 can be adaptively assembled step by step on site according to the construction environment and the gap size of the expansion joint 13, and the filling construction of the caulking material 22 is coordinated, thereby reducing the construction difficulty and efficiency of the expansion joint flattening structure, and further improving the practicality of the expansion joint flattening structure.

[0049] Figure 5 FIG. 1 is a flow chart of a pressure leveling method provided by an embodiment of the present invention. Figure 5 As shown, the embodiment of the present invention also provides a flattening method, which is suitable for Figures 1 to 4 The expansion joint flattening structure of the hydraulic structure shown in the figure, the flattening method comprises:

[0050] S1, construct a hydraulic structure 1 between the two banks of the river.

[0051] In this step, multiple hydraulic structures 1 are arranged in the water body to control and regulate the water flow, prevent and control water disasters, and develop and utilize water resources to meet the water resource needs of different departments and fields.

[0052] S2, a pipe network 21 is arranged in the expansion joint 13 of the hydraulic structure 1, and a caulking material 22 is fixedly filled between the pipe network 21 and the expansion joint 13, so that the water pressure change in the expansion joint 13 is synchronized with the water pressure change in the water body.

[0053] After the construction of the hydraulic structure 1 with a multi-joint structure is completed, in the direction of the flow of the river water, most of the water flow located upstream of the hydraulic structure 1 is blocked by the side joints 11 and the middle joints 12 of the hydraulic structure 1. By setting the flattening assembly 2 in the expansion joint 13 between the middle joint 12 and the side joint 11, most of the space in the expansion joint 13 is filled and sealed with the caulking material 22. And by setting the pipe network 21 with through holes 21a on the pipe wall between the caulking materials 22, the pipe network 21 is composed of drainage pipes that are interconnected. By connecting the multiple water inlets and water outlets of the pipe network 21 with the end face of the hydraulic structure 1 facing the upstream of the river body, the water flow flowing from the upstream to the downstream of the hydraulic structure 1 can flow freely in the pipe network 21 under the guidance of the drainage pipe after entering from the water inlet of the pipe network 21, and then flow out from the water outlet of the pipe network 21 and be discharged into the upstream water body. The water that penetrates into the gaps of the caulking material 22 can also enter the pipes of the pipe network 21 through the through holes 21a on the pipe network 21, and flow to the upstream water body of the hydraulic structure along with the water flow in the pipe network. Compared with the infiltration flow between the gaps of the caulking material 22, the pipe network 21 arranged in the caulking material 22 absorbs, guides and discharges the water between the gaps, so that the water flow in the expansion joint 13 is smoother. The water level in the pipe network 21 can change in real time according to the water level change upstream of the hydraulic structure 1, so that the water pressure in the gaps between the expansion joints 13 of the hydraulic structure reaches the hydrostatic pressure, and the pressure change of the water pressure in the gaps is synchronized with the water pressure change upstream, ensuring that the actual application of the hydraulic structure is consistent with the design working conditions, thereby improving the operational stability and safety of the hydraulic structure.

[0054] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0055] The above descriptions are merely optional embodiments of the present invention and are not intended to limit the present invention. 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 hydraulic structure expansion joint flat pressure structure, characterized in that: include: A hydraulic structure (1) is constructed between two banks of a river, wherein the hydraulic structure (1) has a plurality of expansion joints (13). A leveling component (2) is arranged in the expansion joint (13), the leveling component (2) comprising a pipe network (21) and a caulking material (22), the water inlet of the pipe network (21) and the water outlet of the pipe network (21) are both connected to the end surface of the hydraulic structure (1) facing the upstream of the river body, the pipe wall of the pipe network (21) is covered with through holes (21a), and the caulking material (22) is filled between the pipe network (21) and the expansion joint (13); The pipe network (21) comprises a plurality of groups of first drainage pipes (211) and a plurality of groups of second drainage pipes (212), the plurality of groups of first drainage pipes (211) and the plurality of groups of second drainage pipes (212) being interconnected, the first drainage pipes (211) being arranged in a horizontal direction, one end of the first drainage pipes (211) being connected to an end surface of the hydraulic structure (1) facing the upstream of the river body, the other end of the first drainage pipe (211) being closed, each group of the first drainage pipes (211) comprising a plurality of the first drainage pipes (211) arranged in parallel in a vertical direction, the plurality of groups of the first drainage pipes (211) being arranged at intervals in the vertical direction, the second drainage pipes (212) being arranged in a vertical direction, each group of the second drainage pipes (212) comprising a plurality of the second drainage pipes (212) arranged in parallel in a horizontal direction, the plurality of groups of the second drainage pipes (212) being arranged at intervals in the horizontal direction, and both ends of the second drainage pipes (212) being closed; The diameter of the pipe network (21) is smaller than the width of the expansion joint (13), and the outer pipe wall of the pipe network (21) is covered with kraft paper (23).

2. The expansion joint flat-pressing structure of a hydraulic structure according to claim 1, characterized in that: Each group of the first drainage pipes (211) includes three first drainage pipes (211); and each group of the second drainage pipes (212) includes three second drainage pipes (212).

3. The expansion joint flat-pressing structure of a hydraulic structure according to claim 1, characterized in that: The multiple groups of first drainage pipes (211) are arranged at equal intervals, the multiple groups of second drainage pipes (212) are arranged at equal intervals, and the interval between two adjacent groups of the first drainage pipes (211) is equal to the interval between two adjacent groups of the second drainage pipes (212).

4. The expansion joint flattening structure of a hydraulic structure according to claim 3, characterized in that: The distance between two adjacent groups of the first drainage pipes (211) ranges from 1 m to 2 m.

5. The expansion joint flat-pressing structure of a hydraulic structure according to claim 1, characterized in that: In the extension direction of the pipe network (21), the distance between two adjacent through holes (21a) ranges from 3 cm to 5 cm.

6. The expansion joint flattening structure of a hydraulic structure according to claim 1, characterized in that: The caulking material (22) is a closed-cell foam board.

7. A flat pressing method, characterized in that: The flattening method is applicable to the flattening structure of the expansion joint of the hydraulic structure according to any one of claims 1 to 6, and the flattening method comprises: Constructing the hydraulic structure (1) between the two banks of the river; The pipe network (21) is arranged in the expansion joint (13) of the hydraulic structure (1), and the caulking material (22) is fixedly filled between the pipe network (21) and the expansion joint (13), so that the water pressure change in the expansion joint (13) is synchronized with the water pressure change in the water body.

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