Doorway structure and construction method

Abstract

The application provides a gate slot structure, which is applied to the technical field of water conservancy projects and comprises at least one middle pier and at least two side piers, a middle pier gate slot is arranged on the middle pier, and the middle pier gate slot is arranged on both sides of the middle pier; the middle pier is located between the two side piers, a side pier gate slot is arranged on the side pier, and the side pier gate slot is arranged on one side of the side pier facing the middle pier; the middle pier gate slot comprises a connecting assembly and a supporting assembly; one side of the connecting assembly is connected with the supporting assembly, the other side of the connecting assembly is connected with the middle pier, both ends of a gate are connected with the supporting assembly and the side pier gate slot respectively, and the supporting assembly is correspondingly arranged with the side pier gate slot; wherein the connecting assembly is fixedly connected with the supporting assembly; or the connecting assembly is detachably connected with the supporting assembly. The application can prolong the service life of the middle pier gate slot, simplify the construction process of the gate slot, and shorten the construction period.

Description

Technical Field

[0001] This application relates to the field of water conservancy engineering technology, specifically to a gate slot structure and construction method. Background Technology

[0002] A gate slot is a structural component used to install and guide a gate. It is typically a groove or frame and is used in water conservancy projects, pumping stations, canals, and other similar facilities. The main function of the gate slot is to provide a stable installation position for the gate and ensure smooth movement during opening and closing.

[0003] In existing multi-hole sluice gates, gate slots are required on both sides of the central pier. Commonly, these gate slots are constructed of concrete, a design that occupies a significant amount of space on the central pier, increasing its overall thickness. Furthermore, the gate slots are susceptible to corrosion from water flow and sediment, exhibiting poor durability and lacking self-repair capabilities. Severe corrosion can render the gate slot unusable, making maintenance difficult. When maintenance is needed, the entire gate slot must be removed, and a new one re-installed and cast. This process can easily damage the central pier's structure, making both installation and removal extremely challenging.

[0004] In terms of construction, the gate slot adopts a two-stage concrete pouring method. The first stage of concrete requires the pre-reservation of reinforcing bars so that they can be welded to the gate slot later before the second stage of pouring. This construction process is relatively complex, with many procedures and a long construction period. At the same time, controlling the installation accuracy is also quite difficult.

[0005] Therefore, the structure of the gate slot in the prior art has room for further improvement. Summary of the Invention

[0006] The purpose of this application is to provide a gate slot structure and construction method to solve the problems mentioned in the background art, such as the gate slot easily leading to an increase in the overall thickness of the gate pier, making maintenance and disassembly difficult, the construction process more complex, and the construction period longer.

[0007] To achieve the above objectives, this application provides a door slot structure, comprising: At least one central pier, wherein a central pier gate slot is provided on the central pier, and the central pier gate slot is located on both sides of the central pier; At least two side piers, the middle pier is located between the two side piers, and the side piers are provided with side pier gate slots, which are located on the side facing the middle pier; The central pier gate slot includes a connecting component and a supporting component; one side of the connecting component is connected to the supporting component and the other side is connected to the central pier, and both ends of the gate are connected to the supporting component and the side pier gate slot respectively, with the supporting component and the side pier gate slot being correspondingly arranged; The connecting component is fixedly connected to the supporting component; or, The connecting component is detachably connected to the supporting component.

[0008] Compared with existing technologies, the gate slot structure of this application features a connecting component and a supporting component. The fixed or detachable connection between the connecting and supporting components provides flexibility for the gate slot, facilitating adjustment or replacement during construction and maintenance. When the connecting and supporting components are fixedly connected, they form a unified structure, better distributing and transferring the load from the gate, thus enhancing the overall structural stability. This also helps reduce gaps between the connecting and supporting components, reducing leakage risk and maintenance costs. When the connecting and supporting components are detachable, the supporting component can be easily disassembled and replaced after prolonged use, reducing the need for dismantling the entire structure. Furthermore, it allows for 100% disassembly upon disposal, reducing waste and aligning with sustainable development principles. The design is convenient, saving construction materials and costs. This extends the service life of the gate slot, reduces the overall thickness of the gate pier, facilitates inspection and disassembly, and simplifies the construction process, resulting in shorter construction time and simpler procedures.

[0009] Preferably, the connecting component is provided with a mating part, and the supporting component is provided with a connecting part. The mating part and the connecting part cooperate to realize a detachable connection between the connecting component and the supporting component. The mating part and the connecting part are respectively provided.

[0010] In this embodiment, the mating part and the connecting part cooperate to realize the detachable connection between the connecting component and the supporting component. This allows the gate slot of the middle pier to be easily disassembled and installed when maintenance or replacement of parts is required. After being scrapped, it can be 100% disassembled, reducing waste and conforming to the concept of sustainable development. It is easy to operate and saves construction materials and costs.

[0011] Preferably, the middle pier is provided with a guide groove, and the connecting component is provided with a positioning element. One end of the positioning element is connected to the support component, and the other end of the positioning element is connected to the guide groove, so as to fix the middle pier and the connecting component. There are at least two guide grooves, with adjacent guide grooves spaced apart, and the size of the guide grooves is adapted to the size of the positioning component.

[0012] In this embodiment, the guide groove can provide guidance for the connecting components, so that the positioning component can be accurately connected to the guide groove, avoiding damage caused by connection deviation, thereby enhancing the stability of the gate slot of the central pier and the overall structure of the central pier, and extending its service life.

[0013] Preferably, the support assembly includes a fixing member and two parallel support plates, with both ends of the fixing member connected to the two support plates respectively, the fixing member located in the middle of the support plates, and the support plates located between the connecting assembly and the fixing member; In the horizontal direction, the width of the support plate is L1, and the width of the middle pier is L2; L1=L2.

[0014] In this embodiment, the width of the support plate is equal to the width of the central pier, which can effectively reduce the thickness of the central pier, thereby reducing the width of the sluice gate bottom plate. After comprehensive optimization, the amount of reinforced concrete used is reduced, saving construction materials and costs.

[0015] Preferably, the fastener includes a first steel plate and two parallel second steel plates, with both ends of the first steel plate connected to the two second steel plates respectively, and both ends of the second steel plates connected to two support plates respectively. The first steel plate is arranged parallel to the support plate.

[0016] In this embodiment, by setting a first steel plate and a second steel plate, the load of the gate can be better transferred to the first steel plate and the second steel plate, ensuring that the fixing component will not be excessively deformed or fail when under stress, thereby better supporting the gate.

[0017] Preferably, the fixing member has a cavity located between the first steel plate and the support plate, and the cavity is filled with an empty box. The empty box is filled with magnetorheological fluid.

[0018] In this embodiment, the empty box is filled with magnetorheological fluid. When it encounters an earthquake or ice impact, the viscosity of the fluid can be changed instantly by the electromagnetic field, thereby reducing the impact load and protecting the gate slot and its structure.

[0019] Preferably, the side pier gate slot includes a support member and a slot body. The support member is fixedly connected to the side pier, and the slot body at least partially cooperates with the support member to realize the connection between the slot body and the support member.

[0020] In this embodiment, the effective connection between the connecting body and the channel is achieved through the cooperation of the channel and the support, which enhances the stability and reliability of the overall structure of the side pier gate channel.

[0021] This application also provides a construction method for a door slot structure, including the following steps: Step S1: During the construction preparation stage, reserve connecting bars in the connecting components; Step S2: Build the template according to the design drawings; Step S3: Prepare concrete according to design requirements, and check the concrete mix proportions and quality standards; Step S4: Pour concrete into the formwork to ensure that the central pier and the central pier gate slot are completely filled; Step S5: Control the installation and positioning accuracy of the gate slot at the central pier; Step S6: After construction is completed, concrete curing is carried out. After curing is completed, inspection and acceptance are conducted.

[0022] In this embodiment, firstly, during the construction preparation phase, the construction personnel prepare all necessary materials and reserve connecting bars in the connecting components. These connecting bars are used to anchor and fix the gate slot of the central pier to the central pier. Secondly, the template is built according to the design drawings. Thirdly, concrete is prepared according to the design requirements, and the concrete mix ratio and quality standards are checked to ensure that the concrete meets the standards. Then, the concrete is poured into the template to ensure that the central pier and the gate slot are completely filled, ensuring a firm connection between the central pier and the gate slot and supporting the opening or closing of the gate. Next, the installation and positioning of the gate slot of the central pier are precisely controlled to avoid errors caused by positional deviation and to avoid re-excavation and reinstallation. Finally, after all construction is completed, the concrete is cured, and a protective layer is applied to the surface of the gate slot of the central pier for curing, thereby enhancing the service life of the gate slot. After curing, inspection and acceptance are carried out.

[0023] Preferably, step S4 further includes: Step S41: During the first phase of concrete pouring, the middle pier and the guide groove reserved for installing the gate slot of the middle pier are constructed simultaneously. Step S42: After the first phase of concrete pouring is completed, the gate slot of the pier is fixed to the pier during the second phase of concrete pouring, and multiple anti-seepage holes are reserved.

[0024] In this embodiment, firstly, during the first-stage concrete pouring, the central pier and the guide groove reserved for installing the central pier gate slot are constructed simultaneously, providing adjustment space for the positioning of the embedded parts (such as waterstops, tracks, etc.) of the central pier gate slot; after the embedded parts of the central pier gate slot are accurately positioned, the second-stage concrete is poured to fix the central pier gate slot to the central pier, and multiple anti-seepage holes are reserved to accurately fix the position of the embedded parts, avoid the impact of the first-stage concrete construction error on the gate installation, ensure that the gate opens and closes flexibly and seals reliably, and reduce construction interference.

[0025] Preferably, step S4 further includes: Step S41: The connecting components and support components are installed together and concrete is poured simultaneously with the central pier.

[0026] In this embodiment, firstly, the connecting components and supporting components are installed together and the concrete is poured simultaneously with the central pier. Pouring together can avoid water seepage or weak areas caused by improper treatment of construction joints, improve the seepage prevention strength of the central pier gate slot, and also reduce the repeated scheduling of hoisting equipment and the waiting time between manual operations. Attached Figure Description

[0027] Figure 1 This is a schematic plan view of the door slot structure and construction method provided in an embodiment of this application; Figure 2 yes Figure 1 A magnified view of part B in the diagram; Figure 3 This is a schematic diagram of the gate slot structure and construction method of the central pier gate provided in one embodiment of this application. Figure 1 ; Figure 4 yes Figure 2 A magnified view of part of D; Figure 5 yes Figure 1 A magnified view of part of C; Figure 6 This is a schematic diagram of the gate slot structure and construction method of the side pier gate provided in one embodiment of this application; Figure 7 yes Figure 1 A magnified view of part A in the diagram; Figure 8 This is a schematic diagram of the gate slot structure and construction method of the central pier gate provided in one embodiment of this application. Figure 2 .

[0028] Figure label: 1. Central pier gate slot; 2. Side pier gate slot; 3. Central pier; 4. Side pier; 11. Connecting component; 12. Supporting component; 21. Supporting element; 22. Tank; 31. Guide groove; 32. Protrusion; 33. Leakage prevention hole; 111. Mating part; 112. Positioning component; 113. Connecting rib; 114. Guide component; 115. Load-bearing component; 121. Connecting part; 122. Fixing component; 123. Support plate; 124. Protective plate; 211. First reinforcing plate; 212. Second reinforcing plate; 221. Mating groove; 1111. Second groove; 1141. Filling area; 1211. First groove; 1221. First steel plate; 1222. Second steel plate; 1223. Cavity; 2111. First protrusion; 2121. Second protrusion. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of this disclosure, the following detailed, clear, and complete description of this disclosure is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this disclosure and are not intended to limit it.

[0030] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0031] Those skilled in the art should understand that in the disclosure of this application, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 application 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, the above terms should not be construed as limitations on this application.

[0032] The present application will now be described in further detail with reference to the accompanying drawings, see below. Figures 1 to 8 illustrate.

[0033] Example 1 This embodiment provides a gate slot structure and construction method, which are applied in the field of water conservancy engineering technology, such as... Figures 1 to 8 As shown in the figure, this embodiment provides a gate slot structure, which is applied in the field of hydraulic engineering technology, such as... Figures 1 to 6 As shown, it includes at least one central pier 3 and at least two side piers 4. The central pier 3 is provided with a central pier gate slot 1, which is located on both sides of the central pier 3. The central pier 3 is located between the two side piers 4. The side piers 4 are provided with side pier gate slots 2, which are located on the side facing the central pier 3. The gate is located between the side piers 4 and the central pier 3. The central pier gate slot 1 and the side pier gate slot 2 jointly support the gate, ensuring the stability and safety of the gate during the opening and closing process, and enhancing the stability of the gate.

[0034] The central pier gate slot 1 includes a connecting component 11 and a supporting component 12. One side of the connecting component 11 is connected to the supporting component 12, and the other side of the connecting component 11 is fixedly connected to the central pier 3. The two ends of the gate are respectively connected to the supporting component 12 and the side pier gate slot 2. The supporting component 12 and the side pier gate slot 2 are correspondingly arranged. The connecting component 11, the supporting component 12 and the side pier gate slot 2 form a stable support system, which can effectively support the two ends of the gate and ensure its stability during opening and closing.

[0035] like Figure 3As shown, the connecting component 11 and the supporting component 12 are fixedly connected. The fixed connection makes the connecting component 11 and the supporting component 12 form an integral structure, which can better share and transmit the load from the gate, thereby enhancing the stability of the overall structure. It can also help reduce the gap between the connecting component 11 and the supporting component 12, thereby reducing the risk of leakage, reducing leakage maintenance costs, and extending the service life of the gate slot 1 of the middle pier.

[0036] Furthermore, such as Figures 2 to 4 As shown, the middle pier 3 is provided with a guide groove 31, and the connecting component 11 is provided with a positioning element 112. One end of the positioning element 112 is connected to the support component 12, and the other end of the positioning element 112 is connected to the guide groove 31 to fix the middle pier 3 and the connecting component 11. The end of the positioning element 112 near the support component 12 is fixedly connected to the support component 12, and the other end of the positioning element 112 extends away from the support component 12 and is inserted into the guide groove 31, thereby achieving a fixed connection between the middle pier 3 and the connecting component 11 and enhancing the connection strength between the middle pier 3 and the connecting component 11. There are at least two guide grooves 31, and two adjacent guide grooves 31 are spaced apart. The size of the guide groove 31 is adapted to the size of the positioning element 112. The guide groove 31 can provide guidance for the connecting component 11, so that the positioning element 112 can be accurately connected to the guide groove 31, avoiding damage caused by connection deviation, thereby enhancing the stability of the overall structure of the middle pier gate slot 1 and the middle pier 3 and extending the service life. The connecting component 11 also includes multiple load-bearing components 115. Each load-bearing component 115 is made of steel plate. One end of the load-bearing component 115 is fixedly connected to the support component 12, and the other end of the load-bearing component 115 extends away from the gate. In the vertical direction, the multiple load-bearing components 115 are spaced apart. In the horizontal direction, the two sides of the load-bearing components 115 are flush with the two sides of the middle pier 3. The load-bearing components 115 are used to bear the load of the gate and transfer the load to the middle pier 3, thereby enhancing the strength of the gate slot 1 of the middle pier.

[0037] Furthermore, such as Figure 3As shown, the support assembly 12 includes a fixing member 122 and two parallel support plates 123. The two ends of the fixing member 122 are connected to the two support plates 123 respectively. The fixing member 122 is located in the middle of the support plates 123. The support plates 123 are located between the connecting assembly 11 and the fixing member 122. That is, the two ends of the fixing member 122 are perpendicularly connected to the two support plates 123 respectively. The connection angle between the fixing member 122 and the support plates 123 is 90°. The fixing member 122 can evenly transfer the load to the support plates 123, ensuring that the support plates 123 will not deform excessively or fail when under stress. From the horizontal direction, the support plates 123 and the fixing member 122 are connected to form an H-shaped structure. The H-shaped structure can provide good stability, effectively distribute and bear the weight from the gate and the pressure of the water flow, enhance the bending and shear resistance of the overall structure, and effectively reduce the amount of reinforced concrete used, thus reducing the cost. In the horizontal direction, the width of the support plate 123 is L1, and the width of the middle pier 3 is L2. L1=L2 can effectively reduce the thickness of the middle pier 3, thereby reducing the width of the sluice gate bottom plate. After comprehensive optimization, the amount of reinforced concrete used is reduced, saving materials and costs.

[0038] Furthermore, such as Figure 3 As shown, the fixing member 122 includes a first steel plate 1221 and two parallel second steel plates 1222. The two ends of the first steel plate 1221 are perpendicularly connected to the two second steel plates 1222 respectively, that is, the connection angle between the first steel plate 1221 and the second steel plate 1222 is 90°. The two ends of the second steel plate 1222 are perpendicularly connected to the two support plates 123 respectively, that is, the connection angle between the second steel plate 1222 and the support plate 123 is 90°. In the horizontal direction, the first steel plate 1221 is parallel to the support plate 123, and the second steel plate 1222 is parallel to the mating part 111. By setting the first steel plate 1221 and the second steel plate 1222, the load of the gate can be better transferred to the first steel plate 1221 and the second steel plate 1222, ensuring that the fixing member 122 will not be excessively deformed or fail when under force, thereby better supporting the gate. Among them, the surfaces of the first steel plate 1221 and the second steel plate 1222 are provided with epoxy coatings. The surfaces of the first steel plate 1221 and the second steel plate 1222 are sprayed with epoxy coatings containing microcapsules. After long-term friction with the gate, wear occurs. When the epoxy coating wears and cracks, it releases nano-silica particles to automatically fill the defects and improve the durability of the gate slot 1 of the middle pier.

[0039] Furthermore, such as Figure 3As shown, the support assembly 12 also includes multiple protective plates 124. The protective plates 124 are made of alloy material, but in this embodiment, steel material can be used. The protective plates 124 are connected to the support plate 123. The second steel plate 1222 is located between the two protective plates 124, which means that each support plate 123 is provided with two protective plates 124. The protective plates 124 are located on the side of the support plate 123 away from the connecting assembly 11. The end of the protective plate 124 away from the fixing member 122 is flush with the end of the support plate 123, which can reduce the amount of reinforced concrete used in the gate pier. When the gate is opened or closed, the protective plate 124 contacts the gate. The protective plate 124 can replace the support plate 123 in contacting the gate, thereby reducing the wear caused by friction between the gate and the support plate 123 and extending the service life of the gate slot 1 of the middle pier.

[0040] Furthermore, such as Figure 3 As shown, the fixing component 122 has a cavity 1223 located between the first steel plate 1221 and the support plate 123. The cavity 1223 is filled with an empty box, which can reduce the amount of concrete used and the overall weight of the middle pier 3 without affecting the strength of the fixing component 122, thus saving costs. The empty box is filled with magnetorheological fluid. When it encounters an earthquake or ice impact, the viscosity of the fluid can be instantly changed by an electromagnetic field, thereby reducing the impact load and protecting the gate slot 1 of the middle pier and its structure.

[0041] Furthermore, such as Figure 3 As shown, the connecting component 11 also includes a plurality of connecting ribs 113, which are spaced apart and are correspondingly arranged with the mating part 111. The connecting ribs 113 extend away from the supporting component 12 and are inserted into the middle pier 3, thereby enhancing the connection strength between the middle pier 3 and the connecting component 11.

[0042] Furthermore, such as Figures 2 to 4As shown, the middle pier 3 is provided with at least two protrusions 32. The protrusions 32 are dovetail tenon structures. The protrusions 32 protrude towards the gate slot 1 of the middle pier. Two adjacent protrusions 32 are spaced apart. The guide groove 31 is located on the protrusions 32. The positioning component 112 is connected to the middle pier 3 through the guide groove 31. When the positioning component 112 of the connecting component 11 is connected to the guide groove 31, the concrete is poured to fix the connecting component 11 to the middle pier 3. The dovetail tenon structure has good pull-out resistance and can strengthen the strength between the middle pier 3 and the connecting component 11, so that the middle pier 3 and the connecting component 11 can withstand greater tensile and shear forces. Among them, the outer side of the middle pier 3 is provided with anti-seepage holes 33, that is, the side of the middle pier 3 facing the connecting component 11 is provided with multiple anti-seepage holes 33, and the end of the protrusion 32 is also provided with anti-seepage holes 33, that is, the end of the protrusion 32 near the connecting component 11 is provided with multiple anti-seepage holes 33. The anti-seepage holes 33 are reserved in advance during the construction process to reduce the risk of leakage between the new and old concrete interface, fill the gap between the new and old concrete, strengthen the interface, and reduce the possibility of water penetration.

[0043] Furthermore, such as Figures 5 to 6 As shown, the side pier gate slot 2 includes a support member 21 and a slot body 22. The slot body 22 is fixedly connected to the side pier 4 and movably connected to the support member 21. The slot body 22 at least partially mates with the support member 21 to achieve the connection between the slot body 22 and the support member 21. The mate between the slot body 22 and the support member 21 ensures an effective connection between the two, enhancing the stability and reliability of the overall structure of the side pier gate slot 2. The width of the side pier gate slot 2 is the same as the width of the side pier 4, that is, the end of the support member 21 away from the slot body 22 is on the same straight line as the outer edge of the side pier 4. This can reduce the thickness of the side pier 4, thereby reducing the load on the sluice gate bottom plate, which can reduce the width of the sluice gate bottom plate. After comprehensive optimization, the amount of reinforced concrete used is reduced, saving materials and costs.

[0044] Furthermore, such as Figure 6 As shown, the support member 21 includes a first reinforcing plate 211 and two parallel second reinforcing plates 212. The two ends of the first reinforcing plate 211 are perpendicularly connected to the ends of the two second reinforcing plates 212, and the other end of the second reinforcing plate 212 extends toward the direction away from the groove 22. That is, the connection angle between the first reinforcing plate 211 and the second reinforcing plate 212 is 90°. The first reinforcing plate 211 and the two second reinforcing plates 212 are connected to form a groove, thereby improving the support of the gate.

[0045] The first reinforcing plate 211 has at least two first protrusions 2111, and the second reinforcing plate 212 has at least one second protrusion 2121. Both the first protrusions 2111 and the second protrusions 2121 cooperate with the groove 22 to achieve a detachable connection between the support member 21 and the groove 22. The detachable connection allows the support member 21 to be easily disassembled and installed when maintenance or replacement is required. After being scrapped, it can be 100% disassembled and recycled, reducing waste and conforming to the concept of sustainable development. It is easy to operate and saves materials and costs.

[0046] The groove 22 is provided with a mating groove 221 that mates with the first protrusion 2111 and the second protrusion 2121. The size of the mating groove 221 is adapted to the size of the first protrusion 2111 and the second protrusion 2121, and the mating groove 221 is correspondingly set for the first protrusion 2111 and the second protrusion 2121. The groove 22 is provided with multiple connecting ribs. The connecting ribs extend away from the groove 22 and extend into the side block 4 and are fixedly connected to the side block 4. The connecting ribs are set on the side of the groove 22 away from the support member 21, and the connecting ribs are correspondingly set for the mating groove 221. Each mating groove 221 corresponds to a single connecting rib, thereby enhancing the connection strength between the groove 22 and the side block 4. The outer layer of the trough 22 is made of high-strength stainless steel, which can protect the trough 22 from damage and withstand the impact and pressure of the gate. The middle layer of the trough 22 is made of basalt fiber reinforced material. When the side pier gate slot 2 is subjected to impact or vibration, the basalt fiber reinforced material can absorb and disperse energy, reduce damage to the side pier gate slot 2, and improve the overall impact resistance of the side pier gate slot 2. The inner layer of the trough 22 is made of self-healing coating, which can automatically repair when there are micro cracks or damage on the coating surface, prevent crack propagation, thereby improving the durability of the trough 22 and extending the service life of the side pier gate slot 2.

[0047] This embodiment also provides a construction method for a doorway structure, including the following steps: Step S1: During the construction preparation stage, a connecting bar is reserved in the connecting component 11; Step S2: Build the template according to the design drawings; Step S3: Prepare concrete according to design requirements, and check the concrete mix proportions and quality standards; Step S4: Pour concrete into the formwork to ensure that the central pier 3 and the central pier gate slot 1 are completely filled; Step S5: Control the installation and positioning accuracy of the gate slot 1 at the central pier; Step S6: After construction is completed, concrete curing is carried out. After curing is completed, inspection and acceptance are conducted.

[0048] In this embodiment, firstly, during the construction preparation stage, the construction personnel prepare all the necessary materials and reserve connecting bars in the connecting component 11. The connecting bars are used to anchor and fix the middle pier gate slot 1 to the middle pier 3. Secondly, the template is built according to the design drawings. Thirdly, concrete is prepared according to the design requirements, and the concrete mix ratio and quality standards are checked to ensure that the concrete meets the standards. Then, the concrete is poured into the template to ensure that the middle pier 3 and the middle pier gate slot 1 are completely filled, so as to ensure that the connection between the middle pier 3 and the middle pier gate slot 1 is firm and can support the opening or closing of the gate. Next, the installation and positioning of the middle pier gate slot 1 are precisely controlled to avoid errors caused by positional deviation and to avoid re-excavation and reinstallation. Finally, after all the construction is completed, the concrete is cured, and then a protective layer is applied to the surface of the middle pier gate slot 1 for curing, thereby enhancing the service life of the middle pier gate slot 1. After curing, inspection and acceptance are carried out.

[0049] Specifically, step S4 also includes: Step S41: During the first phase of concrete pouring, the middle pier 3 and the guide groove 31 reserved for installing the middle pier gate groove 1 are constructed simultaneously. Step S42: After the first phase of concrete pouring is completed, the gate slot 1 of the middle pier and the middle pier 3 are fixed during the second phase of concrete pouring, and multiple anti-seepage holes 33 are reserved.

[0050] In step S42, after the first-stage concrete pouring is completed and before the second-stage concrete pouring of the gate slot 1 and the middle pier 3 are fixed, the surface of the first-stage concrete is roughened, the interface dust of the joint between the first-stage concrete and the second-stage concrete is blown away with compressed air and kept moist so that the interface is free of water accumulation.

[0051] In this embodiment, firstly, during the first-stage concrete pouring, the central pier 3 and the guide groove 31 reserved for installing the central pier gate slot 1 are constructed simultaneously, providing adjustment space for the positioning of the embedded parts (such as waterstops, tracks, etc.) of the central pier gate slot 1. Secondly, after the first-stage concrete pouring is completed and the concrete reaches a certain strength, the surface of the first-stage concrete is roughened, and the interface dust at the joint between the first-stage and second-stage concrete is blown away with compressed air and kept moist, ensuring that the interface is free of water accumulation and preventing leakage of the central pier gate slot 1. After the embedded parts of the central pier gate slot 1 are accurately positioned, the second-stage concrete is poured to fix the central pier gate slot 1 and the central pier 3, and multiple anti-seepage holes 33 are reserved to accurately fix the position of the embedded parts, avoiding the impact of the first-stage concrete construction errors on the gate installation, ensuring flexible opening and closing of the gate, reliable sealing, and reducing construction interference. The second-stage concrete is constructed separately after the first-stage concrete pouring, which avoids conflicts with the formwork, support, and other processes, reducing the risk of cross-operation.

[0052] To enhance the bond between new and old concrete, the joint surface is treated with an interface agent or cement grout. Applying an epoxy interface agent or pure cement paste with a water-cement ratio of 0.4 to 0.5 enhances the bond between the new and old concrete. The interface agent can fill the tiny pores and unevenness on the concrete surface, providing a larger contact area and thus improving the bond strength.

[0053] To enhance the connectivity and pull-out resistance of the first-stage concrete, Φ16~25mm anchor bars are pre-embedded in the first-stage concrete. The spacing between two adjacent anchor bars is ≤30cm, and the exposed length of the anchor bars is ≥20d, where d is the diameter of the steel bar, which helps to form mechanical interlocking.

[0054] Furthermore, to simplify construction requirements, during the first-stage concrete pouring, only the foundation strength and the reserved guide groove size of 31mm need to be guaranteed, simplifying construction requirements. The second-stage concrete uses high-strength or fine-aggregate concrete, incorporating 12%–15% MgO expanding agent to achieve delayed micro-expansion, with an expansion rate ≥0.015% after 14 days. Alternatively, steel fiber reinforced concrete can be used, with an admixture dosage of 30–50 kg / m³. 3 This improves the crack resistance of the second-stage concrete. Fine vibration ensures compaction around the embedded parts, preventing defects such as voids and honeycombing. Flexible adjustments and maintenance are possible; if deviations occur in the installation of the embedded parts, they can be corrected before the second-stage concrete pour, reducing rework costs. During later repairs or replacements of the central pier gate slot 1, the second-stage concrete can be partially removed, avoiding damage to the main structure of the first-stage concrete. To accommodate complex structural requirements, for the central pier gate slot 1 requiring pre-embedded bolts, rails, or waterstops, two-stage construction better controls the verticality, flatness, and spacing of the embedded parts, meeting high precision requirements. Simultaneously, staged pouring reduces the concentration of shrinkage stress in large-volume concrete, lowering the risk of cracking and facilitating overall project quality control.

[0055] Example 2 The difference between this embodiment and Embodiment 1 is that, in this embodiment, as... Figures 7 to 8 As shown, the connecting component 11 and the supporting component 12 are detachably connected. The detachable connection provides flexibility for the gate slot 1 of the middle pier, making it easy to adjust or replace during construction and maintenance. When the supporting component 12 is damaged after long-term use, it can be easily disassembled and replaced, reducing the disassembly of the overall structure. After being scrapped, it can be 100% disassembled, reducing waste, which is in line with the concept of sustainable development. It is easy to operate and saves materials and costs.

[0056] like Figures 7 to 8As shown, the connecting component 11 is provided with a mating part 111, and the supporting component 12 is provided with a connecting part 121. The mating part 111 and the connecting part 121 cooperate to realize the detachable connection between the connecting component 11 and the supporting component 12. This allows the gate slot 1 of the middle pier to be easily disassembled and installed when maintenance or replacement of parts is required. After being scrapped, it can be 100% disassembled, reducing waste and conforming to the concept of sustainable development. It is easy to operate and saves construction materials and costs. The mating part 111 and the connecting part 121 are correspondingly set, which can improve the connection accuracy between the two and avoid damage caused by dimensional deviations. The outer layer of the connecting component 11 is made of high-strength stainless steel, which can protect the connecting component 11 from damage and withstand the impact and pressure of the gate. The middle layer of the connecting component 11 is made of basalt fiber reinforced material. When the gate slot 1 of the middle pier is subjected to impact or vibration, the basalt fiber reinforced material can absorb and disperse energy, reduce damage to the gate slot 1 of the middle pier, and improve the overall impact resistance of the gate slot 1 of the middle pier. The inner layer of the connecting component 11 is made of self-healing coating, which can automatically repair when there are micro cracks or damage on the coating surface, prevent crack propagation, thereby improving the durability of the connecting component 11 and extending the service life of the gate slot 1 of the middle pier.

[0057] Specifically, the connecting part 121 is a protrusion with a dovetail tenon structure, and the mating part 111 is a mounting groove. There are multiple connecting parts 121 and multiple mating parts 111, with each connecting part 121 corresponding to a single mating part 111. The dimensions of the connecting part 121 and the mating part 111 are matched. The protrusion 32 of the connecting part 121 can effectively combine with the mounting groove of the mating part 111 to form a firm connection, thereby enhancing the stability between the connecting component 11 and the supporting component 12. The matching of the dimensions of the connecting part 121 and the mating part 111 ensures precise alignment during connection and reduces operational difficulty. The diameter of the connecting part 121 gradually increases from the bottom towards the mating part 111, and the two sides of the connecting part 121 are inclined away from the center of the gate slot 1 of the central pier, which can increase the contact area of ​​the connection, further enhance the firmness of the connection, and also help to disperse stress and reduce local stress concentration when under force. The dovetail tenon structure has good pull-out resistance, which can strengthen the connection between the connecting component 11 and the supporting component 12, enabling the connecting component 11 and the supporting component 12 to withstand greater tensile and shear forces. At the same time, the dovetail tenon structure also makes it easy to disassemble and install the connecting part 121 and the mating part 111, and the processing is relatively simple.

[0058] It should be noted that the connecting part 121 can also be a mounting groove, and the mating part 111 can be a protrusion.

[0059] Furthermore, such as Figure 8As shown, the connecting part 121 has a first groove 1211, and the mating part 111 has a second groove 1111. The second groove 1111 protrudes away from the connecting part 121, and the protruding surface has an arc surface structure. The first groove 1211 is recessed away from the central pier 3, and the recessed surface has an arc surface structure. The diameter of the second groove 1111 is the same as the diameter of the first groove 1211. After the mating part 111 is connected to the connecting part 121, the second groove 1111 and the first groove 1211 form an emergency seepage prevention hole. This indicates that the emergency seepage prevention hole is naturally formed after the mating part 111 and the connecting part 121 are combined. It is a seepage prevention hole used for emergency purposes. As a secondary water-stopping guarantee, the emergency seepage prevention hole may not be needed under normal circumstances, but it can play a role when a problem occurs. The existence of the emergency seepage prevention hole is to provide additional water-tight protection.

[0060] Furthermore, such as Figure 8 As shown, the connecting component 11 also includes a guide 114. The end of the guide 114 away from the support component 12 is connected to the connecting bar. The guide 114 has a filling section 1141. The filling section 1141 is located between two adjacent mating parts 111. The bottom of the filling section 1141 is on the same straight line as the bottom of the mating part 111, and the top of the filling section 1141 is on the same straight line as the top of the mating part 111. This allows the load borne by the mating part 111 to be evenly transferred to the filling section 1141. The filling section 1141 is filled with empty boxes, which can reduce the amount of concrete used and the overall self-weight of the middle pier 3 without affecting the strength of the connecting component 11, thus saving costs.

[0061] It should be noted that other materials can also be used to fill the 1141 area.

[0062] Furthermore, a gap of 3-5 mm is provided between the mating part 111 and the connecting part 121. The gap is filled with high-elasticity silicone material. This gap is an expansion joint with a width of 3-5 mm. The gap is designed to allow the material to expand or contract freely when the temperature changes. By reserving a width of 3-5 mm, the changes caused by thermal expansion and contraction of the high-elasticity silicone material can be effectively accommodated. High-elasticity silicone material is a material with good elasticity and elongation. It can maintain its shape and performance when stretched or compressed. The elongation of high-elasticity silicone material is ≥300%, which means that the high-elasticity silicone material can stretch to a large extent without breaking. This prevents the high-elasticity silicone material from being damaged or deformed due to excessive force, improves the stability of the overall structure, and extends its service life.

[0063] Example 3 The difference between this embodiment and embodiment one is that in this embodiment, step S4 specifically includes: step S41: the connecting component 11 and the supporting component 12 are installed together and the concrete is poured simultaneously with the middle pier 3.

[0064] In this embodiment, firstly, the connecting component 11 and the supporting component 12 are installed together and the concrete is poured simultaneously with the middle pier 3. Pouring together can avoid water seepage or weak areas caused by improper treatment of construction joints, improve the seepage prevention strength of the gate slot 1 of the middle pier, and also reduce the repeated scheduling of hoisting equipment and the waiting time between manual labor. Secondly, during construction, the connecting component 11 and the supporting component 12 need to be fixed to prevent them from changing together and to avoid the support component 12 being difficult to install into the connecting part 121 during the later construction process.

[0065] To ensure accurate positioning, an adjustable steel bracket with positioning bolts is used to fix the gate slot 1 of the central pier. The support system and template are designed as an integrated unit, ensuring that the verticality and horizontality error of the gate slot 1 of the central pier are within ≤2mm. When pre-embedding the anchor bolts of the gate slot 1 of the central pier, a total station is used in conjunction with a laser positioning instrument for real-time calibration, and the position is re-measured and locked before pouring. Protective plates 124 are welded to both sides of the connecting component 11. The thickness of the protective plates 124 is ≥10mm. The protective plates 124 can prevent the connecting component 11 from deforming due to the lateral pressure of the concrete. The filling interval 1141 is filled with foam or empty boxes, which can effectively offset the influence of concrete buoyancy.

[0066] To ensure the quality of concrete pouring, a layered and segmented pouring process was adopted during the simultaneous pouring, and the connecting component 11 was selected for priority pouring: first, self-compacting concrete was poured around the perimeter of the gate slot 1 of the central pier, with vibrators inserted through pre-reserved holes at 1m intervals to ensure no voids, and then the main structure of the central pier 3 was poured. Low-heat micro-expansion concrete was used in the area of ​​the gate slot 1 of the central pier, and MgO expansion agent was added to the concrete to effectively reduce the shrinkage stress in the area of ​​the gate slot 1 of the central pier. A 20mm wide polyethylene foam strip was reserved at the joint between the gate slot 1 of the central pier and the concrete, and the temperature difference was controlled by circulating cooling water pipes at 0.8m intervals, with the temperature difference range ≤20℃.

[0067] To facilitate construction coordination and schedule control, the pouring sequence was simulated using a BIM model, and the steel reinforcement skeletons of the central pier gate slot 1 and central pier 3 were prefabricated as integral modules, which helped reduce on-site assembly time.

[0068] To prevent economic risks, implement deviation prevention and control mechanisms and insurance, a third-party monitoring agency was introduced for the installation and acceptance of the Zhongdun gate slot 1. If the deviation exceeds the standard, work will be stopped immediately for adjustment to avoid rework.

[0069] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A door pocket structure characterized by, include: At least one central pier (3) is provided with a central pier gate slot (1) on the central pier (3), and the central pier gate slot (1) is provided on both sides of the central pier (3); At least two side piers (4), the middle pier (3) is located between the two side piers (4), and the side piers (4) are provided with side pier gate slots (2), which are located on the side facing the middle pier (3); The middle pier gate slot (1) includes a connecting component (11) and a supporting component (12); one side of the connecting component (11) is connected to the supporting component (12), and the other side is connected to the middle pier (3). The two ends of the gate are respectively connected to the supporting component (12) and the side pier gate slot (2). The supporting component (12) and the side pier gate slot (2) are respectively provided. The connecting component (11) is fixedly connected to the supporting component (12); Alternatively, the connecting component (11) and the supporting component (12) may be detachably connected; The support assembly (12) includes a fixing member (122) and two parallel support plates (123). The two ends of the fixing member (122) are respectively connected to the two support plates (123). The fixing member (122) is located in the middle of the support plate (123). The support plate (123) is located between the connecting assembly (11) and the fixing member (122). The fastener (122) includes a first steel plate (1221) and two parallel second steel plates (1222). The two ends of the first steel plate (1221) are respectively connected to the two second steel plates (1222), and the two ends of the second steel plates (1222) are respectively connected to two support plates (123). The first steel plate (1221) is arranged parallel to the support plate (123); The fixing member (122) has a cavity (1223) inside, the cavity (1223) is located between the first steel plate (1221) and the support plate (123), and the cavity (1223) is filled with an empty box; The empty box is filled with magnetorheological fluid.

2. The door slot structure according to claim 1, characterized in that, The connecting component (11) is provided with a mating part (111), and the supporting component (12) is provided with a connecting part (121). The mating part (111) and the connecting part (121) cooperate to realize the detachable connection between the connecting component (11) and the supporting component (12). The mating part (111) and the connecting part (121) are respectively provided.

3. The door slot structure according to claim 1, characterized in that, The middle pier (3) is provided with a guide groove (31), and the connecting component (11) is provided with a positioning component (112). One end of the positioning component (112) is connected to the support component (12), and the other end of the positioning component (112) is connected to the guide groove (31) to achieve the fixation of the middle pier (3) and the connecting component (11); There are at least two guide grooves (31), with two adjacent guide grooves (31) spaced apart, and the size of the guide grooves (31) is adapted to the size of the positioning member (112).

4. The door slot structure according to claim 1, characterized in that, In the horizontal direction, the width of the support plate (123) is L1, and the width of the middle pier (3) is L2; L1=L2.

5. The door slot structure according to claim 1, characterized in that, The side pier gate slot (2) includes a support member (21) and a slot body (22). The support member (21) is fixedly connected to the side pier (4). The slot body (22) is at least partially engaged with the support member (21) to achieve the connection between the slot body (22) and the support member (21).

6. A method of constructing a door pocket structure, characterized by Including the door slot structure as described in any one of claims 1 to 5, the method includes the following steps: Step S1: During the construction preparation stage, reserve connecting bars in the connecting components; Step S2: Build the template according to the design drawings; Step S3: Prepare concrete according to design requirements, and check the concrete mix proportions and quality standards; Step S4: Pour concrete into the formwork to ensure that the central pier and the central pier gate slot are completely filled; Step S5: Control the installation and positioning accuracy of the gate slot at the central pier; Step S6: After construction is completed, concrete curing is carried out. After curing is completed, inspection and acceptance are conducted.

7. The construction method of the door slot structure according to claim 6, characterized in that, Step S4 specifically also includes: Step S41: During the first phase of concrete pouring, the middle pier and the guide groove reserved for installing the gate slot of the middle pier are constructed simultaneously. Step S42: After the first phase of concrete pouring is completed, the gate slot of the pier is fixed to the pier during the second phase of concrete pouring, and multiple anti-seepage holes are reserved.

8. The construction method of the door slot structure according to claim 7, characterized in that, Step S4 specifically also includes: Step S41: The connecting components and support components are installed together and concrete is poured simultaneously with the central pier.

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