A structure and method for solving the conflict between the underground engineering construction joint water stop steel plate and column hoop reinforcement

Abstract

The present application relates to the technical field of underground engineering construction, and particularly relates to a structure and method for solving the conflict between a waterproof steel plate and column hoop reinforcement in underground engineering construction joints, comprising an underground side wall, a hidden column is arranged in the underground side wall, a plurality of vertical main reinforcements and hoop reinforcements are arranged in the hidden column, a waterproof steel plate group is fixedly installed at the construction joint position of the hidden column, a plurality of sleeve assemblies are fixedly installed in the waterproof steel plate group, and the plurality of vertical main reinforcements are distributed on both sides of the waterproof steel plate group and the hoop reinforcements are arranged around the vertical main reinforcements. The sleeve assemblies are arranged in advance on the waterproof steel plate and are threadedly connected with the hoop reinforcement group, so that the conflict between the waterproof steel plate and the column hoop reinforcement in traditional construction can be effectively solved, the waterproof steel plate is prevented from being damaged due to installation conflict and thus affecting the waterproof effect, and the spacing between the hoop reinforcements is prevented from being too large or a single hoop reinforcement is prevented from being disconnected and not closed, so as to affect the structural safety performance of the column.

Description

Technical Field

[0001] This invention relates to the field of underground engineering construction technology, specifically to a structure and method for resolving the conflict between the waterstop steel plate at the construction joint and the column stirrups in underground engineering. Background Technology

[0002] Underground engineering projects (such as basements, water tanks, tunnels, and subway stations) often cannot be completed in a single pour during construction, inevitably requiring multiple pours. If the underground project is located in an environment with a high groundwater level, insufficient bond strength at the interface between new and old concrete, as well as the presence of interface gaps and capillary channels, can easily lead to groundwater seeping into the project along the construction joints. Therefore, waterproofing at construction joints is crucial to the overall structural waterproofing design. Waterstop steel plates are key components in the waterproofing design of construction joints. Their principle is to construct a reliable metal waterproof barrier at the interface between new and old concrete, effectively blocking the seepage channels of pressurized water along the construction joint, extending the seepage path, and disrupting the direction of water flow, ensuring permanent waterproofing of the structure.

[0003] Existing technologies, such as the Chinese invention patent CN110761334B, disclose a water-stopping steel plate. This water-stopping steel plate includes: a body, two wing plates, and two locking mechanisms. The two wing plates are respectively and correspondingly disposed on two opposite first sidewalls of the body, each wing plate having a first preset angle with the body. The two locking mechanisms are respectively and correspondingly disposed on two opposite second sidewalls of the body, each locking mechanism being used to connect with a corresponding locking mechanism in an adjacent water-stopping steel plate. Each first sidewall is adjacent to and perpendicular to the two second sidewalls. In this invention, both opposite second sidewalls of the body are provided with locking mechanisms, and adjacent water-stopping steel plates are connected through these locking mechanisms, achieving a stable connection between the two water-stopping steel plates. This eliminates the need for welding connections as in existing technologies, effectively ensuring the quality of the water-stopping steel plate and thus guaranteeing its water-stopping function. It also enables rapid assembly, improving installation efficiency, and can be installed by ordinary workers. As can be seen from the technical solutions proposed in the aforementioned invention patent documents, these solutions still have shortcomings. For example, the main reinforcement bars of the underground sidewall are arranged on both sides of the waterstop steel plate without conflicting with the waterstop steel plate in the middle. Although the sidewall tie bars are arranged horizontally, their large spacing also prevents them from conflicting with the waterstop steel plate. However, if a concealed column is installed within the sidewall, the small spacing and horizontal arrangement of the stirrups will cause a conflict between the installation of the concealed column stirrups and the waterstop steel plate. Therefore, the existing technology urgently needs a solution to address these problems. Summary of the Invention

[0004] The purpose of this invention is to provide a structure and method for resolving the conflict between the waterstop steel plate at the construction joint of underground engineering and the column stirrups, so as to solve the problems in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: A structure for resolving the conflict between the water-stop steel plate at the construction joint of an underground project and the column stirrups includes an underground sidewall. A concealed column is provided within the underground sidewall. A water-stop steel plate assembly and multiple vertical main reinforcement bars are fixedly installed within the concealed column. The multiple vertical main reinforcement bars are equidistantly distributed on both sides of the water-stop steel plate assembly. Multiple sleeve assemblies are fixedly installed within the water-stop steel plate assembly. A stirrup assembly is threadedly connected to the sleeve assembly, and the stirrup assembly is distributed around the vertical main reinforcement bars. Based on a preferred solution provided by a structure for resolving the conflict between the waterstop steel plate and the column stirrups in the construction joint of underground engineering, the stirrup group includes a first stirrup and a second stirrup. The first stirrup includes two U-shaped stirrups distributed on both sides of the waterstop steel plate group. The ends of the U-shaped stirrups are threadedly connected to the sleeve assembly, and when the sleeve assembly rotates, the ends of the two U-shaped stirrups approach each other until they fit together.

[0006] Based on a preferred solution provided by a structure for resolving the conflict between the waterstop steel plate and the column stirrups in underground engineering construction joints, the sleeve assembly includes a locking sleeve fixedly installed in the waterstop steel plate assembly, the locking sleeve being internally threaded to a rotating sleeve, the rotating sleeve having an internal thread, and the rotating sleeve being threadedly connected to the stirrup assembly through the internal thread.

[0007] Based on a preferred solution provided by a structure for resolving the conflict between the waterstop steel plate at the construction joint of an underground engineering project and the column stirrups, the second stirrup has the same structure as the first stirrup, and the first stirrup and the second stirrup are respectively fixedly connected to a plurality of the vertical main bars.

[0008] Based on a preferred solution provided by a structure for resolving the conflict between the waterstop steel plate and the column stirrups in underground engineering construction joints, each of the multiple vertical main bars is provided with a support component for supporting the first stirrup or the second stirrup, and the waterstop steel plate assembly is detachably equipped with multiple tightening components for fastening the first stirrup and the second stirrup.

[0009] Based on a preferred solution provided by a structure for resolving the conflict between the waterstop steel plate of the construction joint in underground engineering and the column stirrups, the supporting component includes a vertical adjusting cylinder threaded to the outside of the vertical main reinforcement, and a clamping group rotatably connected to the outside of the vertical adjusting cylinder. The clamping group includes two fixedly connected semi-circular clamps, one of which has a supporting arc frame fixedly installed on its side wall.

[0010] Based on a preferred solution provided by a structure for resolving the conflict between the waterstop steel plate and the column stirrups in underground engineering construction joints, the tensioning assembly includes a wheel seat detachably mounted on the waterstop steel plate assembly. A rotatable wheel is rotatably connected inside the wheel seat. A crank handle is fixedly connected through the wheel seat on one side of the rotatable wheel. A positioning pin is provided on the crank handle. Multiple positioning holes are opened on the side wall of the wheel seat for the positioning pin to extend into. An elastic rope is wound inside the wheel seat. The side walls of the first stirrup and the second stirrup share the same hook, and the end of the hook is fixedly connected to one end of the elastic rope.

[0011] Based on a preferred solution to resolve the conflict between the waterstop steel plate at the construction joint of underground engineering and the column stirrups, the waterstop steel plate assembly includes multiple waterstop steel plates, and each of the multiple waterstop steel plates has a slot on one side and a protrusion for extending into the slot fixedly connected to the other side. The multiple waterstop steel plates are mutually engaged through the cooperation of the protrusion and the slot.

[0012] A method for resolving the conflict between the waterstop steel plate at the construction joint of underground engineering and the column stirrups includes the following steps: S1. Multiple vertical main reinforcement bars are fixedly installed in the foundation of the hidden column, and the hidden column is formed while concrete is poured to bury the vertical main reinforcement bars. S2. Before the concrete has hardened, insert the bottom of the waterstop steel plate assembly into the concrete. S3. The waterstop steel plate assembly is equipped with multiple sleeve components. By rotating the sleeve components, the stirrup groups at both ends of the sleeve are fixedly connected to the waterstop steel plate assembly. At the same time as the stirrup groups are fixedly connected to the waterstop steel plate, the stirrup groups surround and abut against multiple vertical main bars. S4. After ensuring that the waterstop steel plate group, stirrup group and vertical main reinforcement are fixedly connected to each other, wait for the concrete to solidify, start the next round of concrete pouring, and repeat the above steps until the overall construction of the hidden column is completed.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The present invention proposes a structure and method for resolving the conflict between the waterstop steel plate and column stirrups in underground engineering construction joints. By pre-arranging sleeve components on the waterstop steel plate and designing threaded linkage with the stirrup group, the stirrups can pass through the waterstop steel plate without damage and be effectively connected. This can solve the problem of conflict between the installation of the waterstop steel plate and column stirrups in traditional construction, avoid damage to the waterstop steel plate due to installation conflict, and avoid affecting the waterproofing effect. It can also avoid excessive spacing of stirrups or broken and unsealed individual stirrups due to installation conflict, which would affect the structural safety performance of the column.

[0014] 2. The structure and method proposed in this invention to solve the conflict between the waterstop steel plate and the column stirrups in the construction joint of underground engineering can not only solve the problem of conflict between the waterstop steel plate and the column stirrups in traditional construction, but also play the role of fixing the waterstop steel plate, avoiding the displacement of the waterstop steel plate during concrete pouring, which would affect the waterstop effect, and can also save the use of the steel bars used to fix the waterstop steel plate.

[0015] 3. The structure and method proposed in this invention to resolve the conflict between the waterstop steel plate and column stirrups in underground engineering construction joints can improve the ease of construction of the waterstop steel plate and column stirrups in underground engineering construction joints. The stirrup group, through segmented design and the adjustment function of the sleeve assembly, can quickly complete the fixed connection with the vertical main reinforcement and waterstop steel plate. At the same time, the lifting assembly and the tightening assembly further ensure the positioning accuracy and connection firmness during the installation process, reduce construction errors, and ensure construction specifications. Attached Figure Description

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention with the hidden pillars removed; Figure 3 for Figure 2 Enlarged schematic diagram of structure A in the middle; Figure 4 This is a schematic diagram of the connection between the water-stopping steel plate and the U-shaped stirrup in this invention; Figure 5 for Figure 4 Enlarged schematic diagram of the B-structure; Figure 6 for Figure 4 Enlarged schematic diagram of the C-structure; Figure 7 This is a top view of the present invention; Figure 8 This is an exploded view of the sleeve assembly in this invention; Figure 9 This is a side sectional view of the present invention.

[0019] In the diagram: 1. Concealed column; 2. Water-stop steel plate; 3. Vertical main reinforcement; 4. U-shaped stirrup; 5. Locking sleeve; 6. Rotating sleeve; 7. Vertical adjusting cylinder; 8. Semi-circular clamp; 9. Support arc frame; 10. Wheel seat; 11. Bundled wheel; 12. Handle; 13. Positioning pin; 14. Positioning hole; 15. Hook; 16. Slot; 17. Protrusion. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Example like Figures 1 to 9 As shown, the present invention provides a structure for resolving the conflict between the waterstop steel plate and the column stirrups in the construction joint of underground engineering. It includes an underground side wall, in which a hidden column 1 is provided. A waterstop steel plate 2 and multiple vertical main bars 3 are fixedly installed in the hidden column 1. The multiple vertical main bars 3 are equidistantly distributed on both sides of the waterstop steel plate 2. Multiple sleeve assemblies are fixedly installed in the waterstop steel plate 2. Stirrup assemblies are threadedly connected to the sleeve assemblies and are distributed around the vertical main bars 3.

[0023] As an advanced solution to resolve the conflict between the waterstop steel plate and the column stirrups in the construction joint of underground engineering, the stirrup group includes a first stirrup and a second stirrup. The first stirrup includes two U-shaped stirrups 4 distributed on both sides of the waterstop steel plate group 2. The ends of the U-shaped stirrups 4 are threadedly connected to the sleeve assembly, and when the sleeve assembly rotates, the ends of the two U-shaped stirrups 4 approach each other until they fit together.

[0024] As an advanced solution to resolve the conflict between the waterstop steel plate and the column stirrups in underground engineering construction joints, the sleeve assembly includes a locking sleeve 5 fixedly installed in the waterstop steel plate 2 group. The locking sleeve 5 is internally threaded with a rotating sleeve 6. The rotating sleeve 6 is internally threaded and is threadedly connected to the stirrup group through the internal thread.

[0025] As a further explanation of this embodiment of the invention, in this embodiment, the locking sleeve 5 is fixedly installed in the water-stop steel plate 2. When the rotating sleeve 6 is rotated in the direction of rotation of the internal thread, the rotating sleeve 6 extends into the locking sleeve 5. The U-shaped stirrups 4 at both ends of the rotating sleeve 6 also extend into the rotating sleeve 6 through threaded linkage. Specifically, both ends of the U-shaped stirrups 4 extend into the rotating sleeve 6 and are threadedly connected to the rotating sleeve 6. Therefore, when the rotating sleeve 6 rotates, the U-shaped stirrups 4 are also driven by the thread and extend into the rotating sleeve 6. Since both ends of the rotating sleeve 6 are threadedly connected to the U-shaped stirrups 4, when the rotating sleeve 6 rotates, the two U-shaped stirrups 4 threadedly connected to the rotating sleeve 6 extend into the rotating sleeve 6 together and move closer to each other.

[0026] As an improved solution to the conflict between the waterstop steel plate of the construction joint in underground engineering and the column stirrups, the second stirrup has the same structure as the first stirrup, and the first stirrup and the second stirrup are respectively fixedly connected to multiple vertical main bars 3.

[0027] As an advanced solution to resolve the conflict between the waterstop steel plate and the column stirrups in underground engineering construction joints, multiple vertical main bars 3 are equipped with support components for supporting the first or second stirrups, and multiple tightening components for fastening the first and second stirrups are detachably installed on the waterstop steel plate 2 group.

[0028] As an advanced solution to the conflict between the waterstop steel plate of the construction joint and the column stirrup in underground engineering, the support component includes a vertical adjustment cylinder 7 threaded to the outside of the vertical main reinforcement 3. The outside of the vertical adjustment cylinder 7 is rotatably connected to a clamp group, which includes two fixedly connected semi-circular clamps 8. A support arc frame 9 is fixedly installed on the side wall of one of the semi-circular clamps 8.

[0029] As a further explanation of this embodiment, in this embodiment, the lifting component is used for preparatory work before the U-shaped stirrup 4 is fixedly installed on the rotating sleeve 6. Specifically, the U-shaped stirrup 4 is made of bent steel bars commonly used on construction sites. Therefore, the U-shaped stirrup 4 itself is heavy. Before extending the end of the U-shaped stirrup 4 into the rotating sleeve 6, it is necessary to ensure that the U-shaped stirrup 4 is kept horizontal to avoid the end of the U-shaped stirrup 4 scratching the threads inside the rotating sleeve 6, or the U-shaped stirrup 4 colliding with the rotating sleeve 6 during the process of extending into the rotating sleeve 6. The collision with the inner wall affects the verticality of the waterstop steel plate group 2, causing it to tilt. Therefore, by pre-installing a vertical adjusting cylinder 7 and a supporting arc frame 9 outside the vertical main reinforcement 3, and placing the U-shaped stirrup 4 on the supporting arc frame 9, the U-shaped stirrup 4 gradually approaches and extends into the rotating sleeve 6 in a horizontal state. The horizontal U-shaped stirrup 4 extending into the rotating sleeve 6 also provides a certain support for the rotating sleeve 6, preventing the rotating sleeve 6 from affecting the stability of the waterstop steel plate 2 during rotation.

[0030] As an advanced solution to resolve the conflict between the waterstop steel plate and the column stirrups in underground engineering construction joints, the tensioning assembly includes a wheel seat 10 detachably mounted on two sets of waterstop steel plates. A rotatable pulley 11 is rotatably connected inside the wheel seat 10. A crank handle 12 is fixedly connected to one side of the pulley 11 through the wheel seat 10. A positioning pin 13 is provided on the crank handle 12. Multiple positioning holes 14 are opened on the side wall of the wheel seat 10 for the positioning pin 13 to extend into. An elastic rope is wound inside the wheel seat 10. The side walls of the first stirrup and the second stirrup share the same hook 15, and the end of the hook 15 is fixedly connected to one end of the elastic rope.

[0031] As a further explanation of this embodiment, in this embodiment, during the process of the rotating sleeve 6 rotating and extending into the locking sleeve 5, the ends of the U-shaped stirrups 4 need to remain pressed against the inner wall of the rotating sleeve 6 so that the U-shaped stirrups 4 can extend into the rotating sleeve 6 together while the rotating sleeve 6 is rotating. Therefore, by turning the handle 12 to tighten the rubber band, and then dragging the hook 15, the U-shaped stirrups 4 are kept pressed against the rotating sleeve 6. Moreover, the rubber band has strong toughness and will not break due to excessive tension. After ensuring that the U-shaped stirrups 4 are pressed against the rotating sleeve 6, the positioning pin 13 is inserted into the positioning hole 14 to fix the wheel seat 10. At this time, by simultaneously rotating the rotating sleeve 6 at both ends of the U-shaped stirrups 4, the rotating sleeve 6 can be extended into the locking sleeve 5, and the U-shaped stirrups 4 at both ends of the rotating sleeve 6 can be extended into the rotating sleeve 6 together. As a further explanation of this embodiment, in this embodiment, the threaded engagement of the rotating sleeve 6, the locking sleeve 5, and the U-shaped stirrups 4 is synchronous. Specifically, when the rotating sleeve 6 is inserted into the locking sleeve 5 by rotation, the ends of the U-shaped stirrups 4 at both ends of the rotating sleeve 6 abut against each other inside the rotating sleeve 6. After the rotating sleeve 6 is rotated into place, the sidewalls of the U-shaped stirrups 4 abut against the sidewalls of the vertical main reinforcement 3 and are distributed around the vertical main reinforcement 3.

[0032] As an advanced solution to resolve the conflict between the waterstop steel plate and the column stirrups in the construction joint of underground engineering, the waterstop steel plate group 2 includes multiple waterstop steel plates 2, and each of the multiple waterstop steel plates 2 has a slot 16 on one side and a protrusion 17 for extending into the slot 16 fixedly connected on the other side. The multiple waterstop steel plates 2 are mutually engaged through the cooperation of the protrusion 17 and the slot 16.

[0033] A method for resolving the conflict between the waterstop steel plate at the construction joint of underground engineering and the column stirrups includes the following steps: Pre-process the vertical main reinforcement 3 and the stirrup group, cut the stirrup group from the middle position to divide it into multiple U-shaped stirrups 4, and cut the ends.

[0034] Based on the actual arrangement of the U-shaped stirrups 4 installed on site, multiple round holes are opened at corresponding positions on the waterstop steel plate 2, and locking sleeves 5 with internal threads are welded at the hole positions on the back side of the waterstop steel plate 2.

[0035] Two sets of water-stop steel plates with locking sleeves 5 arranged in place are installed at the construction joint after being galvanized.

[0036] The U-shaped stirrup 4 and the rotating sleeve 6 are connected to the corresponding locking sleeve 5 by turning the rotating sleeve 6. At the same time, they are spirally connected to the fixing sleeve on the waterstop steel plate 2 group to form a whole, so as to realize the through-through of the steel bar to the waterstop steel plate 2 group.

[0037] Inject water-swellable sealant into one end of the locking sleeve 5 to enhance waterproofing.

[0038] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as the technology or embodiments that are substantially the same as the present invention. This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A structure for resolving the conflict between the water-stop steel plate at the construction joint and the column stirrups in underground engineering, comprising an underground sidewall, characterized in that, The underground side wall is provided with a hidden column (1), and a set of water-stop steel plates (2) and multiple vertical main bars (3) are fixedly installed in the hidden column (1). The multiple vertical main bars (3) are evenly distributed on both sides of the set of water-stop steel plates (2). Multiple sleeve assemblies are fixedly installed in the set of water-stop steel plates (2). The sleeve assemblies are threadedly connected to a set of stirrups, and the stirrups are distributed around the vertical main bars (3). The stirrup group includes a first stirrup and a second stirrup. The first stirrup includes two U-shaped stirrups (4) distributed on both sides of the waterstop steel plate (2) group. The ends of the U-shaped stirrups (4) are threadedly connected to the sleeve assembly. When the sleeve assembly rotates, the ends of the two U-shaped stirrups (4) approach each other until they fit together. The sleeve assembly includes a locking sleeve (5) fixedly installed in the waterstop steel plate (2) group. The locking sleeve (5) is internally threaded with a rotating sleeve (6). The rotating sleeve (6) is internally threaded and is threadedly connected to the stirrup group through the internal thread.

2. The structure for resolving the conflict between the water-stop steel plate at the construction joint of underground engineering and the column stirrups as described in claim 1, characterized in that, The second stirrup has the same structure as the first stirrup, and the first stirrup and the second stirrup are respectively fixedly connected to the plurality of vertical main bars (3).

3. The structure for resolving the conflict between the water-stop steel plate at the construction joint of underground engineering and the column stirrups as described in claim 1, characterized in that, Each of the vertical main bars (3) is provided with a support assembly for supporting the first stirrup or the second stirrup, and the waterstop steel plate (2) group is detachably equipped with a number of tightening assemblies for fastening the first stirrup and the second stirrup.

4. The structure for resolving the conflict between the water-stop steel plate at the construction joint of underground engineering and the column stirrups as described in claim 3, characterized in that, The lifting assembly includes a vertical adjusting cylinder (7) threaded to the outside of the vertical main rib (3). The outside of the vertical adjusting cylinder (7) is rotatably connected to a clamp group. The clamp group includes two fixedly connected semi-circular clamps (8), one of which has a support arc frame (9) fixedly installed on its side wall.

5. A structure for resolving the conflict between the water-stop steel plate at the construction joint of underground engineering and the column stirrups, as described in claim 3, is characterized in that... The tensioning assembly includes a wheel seat (10) detachably mounted on the water-stop steel plate (2) assembly. A rotatable wheel (11) is rotatably connected inside the wheel seat (10). A crank handle (12) is fixedly connected through the wheel seat (10) on one side of the rotatable wheel (11). A positioning pin (13) is provided on the crank handle (12). A plurality of positioning holes (14) are provided on the side wall of the wheel seat (10) for the positioning pin (13) to extend into. A rubber band is wound inside the wheel seat (10). The side walls of the first hoop and the second hoop share the same hook (15), and the end of the hook (15) is fixedly connected to one end of the rubber band.

6. The structure for resolving the conflict between the water-stop steel plate at the construction joint of underground engineering and the column stirrups as described in claim 1, characterized in that, The water-stop steel plate (2) group includes multiple water-stop steel plates (2), and each of the multiple water-stop steel plates (2) has a slot (16) on one side and a protrusion (17) for extending into the slot (16) fixedly connected on the other side. The multiple water-stop steel plates (2) are engaged with each other by the protrusion (17) and the slot (16).

7. A method for resolving the conflict between the waterstop steel plate at the construction joint and the column stirrups in underground engineering, based on any one of claims 1-6, characterized in that... Includes the following steps: S1. Fix multiple vertical main bars (3) in the foundation of the hidden column (1), and pour concrete to bury the vertical main bars (3) to form the hidden column (1). S2. Before the concrete has hardened, insert the bottom of the waterstop steel plate (2) assembly into the concrete; S3. The water-stop steel plate (2) group is equipped with multiple sleeve components. By rotating the sleeve components, the stirrup groups at both ends of the sleeve are fixedly connected to the water-stop steel plate (2) group. At the same time as the stirrup groups are fixedly connected to the water-stop steel plate (2), the stirrup groups surround and abut against multiple vertical main bars (3). S4. After ensuring that the waterstop steel plate (2) group, stirrup group and vertical main reinforcement (3) are fixedly connected to each other, after the concrete solidifies, start the next round of concrete pouring and repeat the above steps until the overall construction of the hidden column (1) is completed.

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