Connecting structure of fabricated subway station and construction method

Abstract

The invention relates to the technical field of subway assembly type stations, and discloses a connecting structure of an assembly type subway station and an annular component used for the assembly type subway station, the annular component comprises a first structural part and a second structural part, the connecting structure of the assembly type subway station comprises a connecting part, and the connecting part is arranged on the first structural part; the connecting piece extends along a first direction; a mounting groove extending in the first direction is formed in the second structural part, and the mounting groove and the connecting part are oppositely arranged; the two clamping parts are arranged on the two sides of the first direction of the mounting groove respectively and slide in the second direction, the two sliding parts are arranged on the first structural parts on the two sides of the connecting part or the clamping parts on the two sides of the mounting groove, and the sliding parts are in transmission connection with the clamping parts. The technical problems that in the prior art, connection operation among a bottom plate, a top plate and side plates of an assembly type subway station structure is tedious, the labor intensity is large, construction is slow, and the construction cost is increased are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metro assembly station, in particular to a connecting structure and construction method of an assembly metro station. BACKGROUND

[0002] At present, the metro assembly station includes a plurality of annular members which are sequentially spliced along the length direction of the station, and each annular member is sequentially spliced by a plurality of sub-members. The assembly metro station can improve construction efficiency, save labor, improve labor conditions, shorten construction period compared with the cast-in-place metro station, and has been rapidly promoted in the field of metro station construction.

[0003] A Chinese patent with publication number CN118390576A discloses an assembly metro station structure, which includes a bottom plate and a top plate arranged in an upper and lower interval, and two side plates arranged in a horizontal interval between the bottom plate and the top plate. The bottom plate and the top plate are both provided with a plurality of bolts arranged in an interval along the extension direction of the metro tunnel, and the bottom plate, the top plate and the side plates are fixedly connected with each other by the bolt fastening mode. However, the connection between the bottom plate, the top plate and the side plates needs workers to tighten a plurality of bolts one by one during construction, which not only is complicated and labor-intensive, but also reduces the assembly efficiency of the assembly metro station structure, and the construction is slow, which prolongs the construction period and increases the construction cost. SUMMARY

[0004] The technical problem to be solved by the present application is that in the prior art, the connection between the bottom plate, the top plate and the side plates of the assembly metro station structure needs workers to tighten a plurality of bolts one by one, which not only is complicated and labor-intensive, but also reduces the assembly efficiency of the assembly metro station structure, and the construction is slow, which prolongs the construction period and increases the construction cost.

[0005] In order to solve the above technical problems, the present application provides a connecting structure of an assembly metro station, which is used for an annular member of the assembly metro station, the annular member includes a first structural member and a second structural member, and the connecting structure of the assembly metro station includes: a first direction, the first direction extends along the extension direction of the metro tunnel; a second direction, the second direction is perpendicular to the first direction; a connecting piece, the connecting piece is arranged on the first structural member and extends along the first direction; the second structural member is provided with a mounting groove extending along the first direction, and the mounting groove is arranged opposite to the connecting piece; two clamping pieces, the two clamping pieces are arranged on the two sides of the first direction of the mounting groove, and the two clamping pieces both slide along the second direction; two sliding pieces, the two sliding pieces are arranged on the first structural member on the two sides of the connecting piece or on the clamping pieces on the two sides of the mounting groove, and the sliding pieces are in transmission connection with the clamping pieces. The first and second structural members move closer to each other so that the lower part of the connector enters the mounting groove and the sliding member drives the clamping member to slide and abut against the connector in the second direction.

[0006] Preferably, the connection structure of the prefabricated subway station also includes a third direction, which is perpendicular to the first direction and the second direction. The ring-shaped component also includes a third structural component. The first structural component and the third structural component are arranged at intervals along a third direction. The first structural component is located above the third structural component. There are two second structural components. The two second structural components are arranged between the first structural component and the third structural component and at intervals along a second direction. The first structural component, the two second structural components and the third structural component enclose and form a ring-shaped component. A prefabricated subway station connection structure is also provided between the second and third structural components.

[0007] Preferably, each clamping member has a first inclined surface on the side away from the mounting groove, and the first inclined surface slopes downward along the horizontal direction away from the mounting groove; Each sliding component has a second inclined surface at its bottom, which slides in conjunction with the first inclined surface. The first and second structural members move closer to each other to drive the second inclined surface and the first inclined surface to slide away from each other, thereby driving the clamping member to slide along the second direction to abut against the connecting member.

[0008] Preferably, the connector includes a connecting plate and a mounting plate that are perpendicular to each other and fixedly connected, with the end of the connecting plate away from the mounting plate fixed to the bottom of the first structural member; The first and second structural members move closer to each other so that the connecting plate and the mounting plate both enter the mounting groove, and drive the second inclined surface and the first inclined surface to slide away from each other, thereby driving the clamping member to slide and abut against the connecting plate in the second direction.

[0009] Preferably, each clamping member includes a first plate segment and a second plate segment disposed on the second structural member. The first plate segment and the second plate segment are connected sequentially along a first direction. The first plate segment is arranged close to the previous annular member. The first inclined surface is disposed on the side of the first plate segment away from the mounting groove and the side of the second plate segment away from the mounting groove. A vertical plate is provided on the side of the first plate segment near the mounting groove. The vertical plate is located inside the mounting groove and extends along the first direction. The first and second structural members approach each other to drive the second inclined surface and the first inclined surface to slide away from each other, thereby driving the second plate segment and the vertical plate to slide and abut against the connecting member along the second direction.

[0010] Preferably, on the side of the annular member close to the previous annular member, a first sealing element is provided at the joint between the first structural member and the second structural member, and a second sealing element is provided at the joint between the third structural member and the second structural member. The first seal and the second seal have the same structure. The first seal includes two rubber semi-rings, one rubber semi-ring is located at the lower part of the first structural member, and the other rubber semi-ring is located at the upper part of the second structural member. After the first structural component and the second structural component are connected, the two rubber semi-rings enclose each other to form a sealing ring. The mounting groove is located inside the sealing ring. The sealing ring, the first structural component, the second structural component, and the previous ring-shaped component form a grouting space. The third / second structural component is equipped with a grouting pipe, and the outlet of the grouting pipe is connected to the grouting space.

[0011] Preferably, the top of each of the second structural members is provided with a protrusion extending along the first direction; The bottom of the first structural component has a groove that matches the protrusion.

[0012] This invention provides a construction method for the connection structure of a prefabricated subway station, which includes the following steps: S1. Secure the third structural component to the previous annular component by abutting it. S2. Slowly lower the second structural component until it is placed on the third structural component; S3. Secure the second structural component to the previous annular component by abutment; S4. Grout into the joint between the third structural member and the second structural member; S5. Repeat steps to step 1 to connect the first structural component and the second structural component.

[0013] Preferably, in step S2, the connector is aligned with the mounting groove, and the second structural member is slowly lowered into the range of the second plate segment on the third structural member; In step S3, the second structural member is driven to slide by longitudinal tensioning and locking technology, and after the second structural member abuts against the upper ring member, it is fixed to the upper ring member.

[0014] Preferably, in step S4, grout is injected through the grouting pipe until the grout flows out from one end of the mounting groove away from the previous annular component.

[0015] The connection structure and construction method of a prefabricated subway station according to an embodiment of the present invention have the following advantages compared with the prior art: This invention discloses a connection structure and construction method for a prefabricated subway station. A connector is installed on a first structural member, and an installation groove is installed on a second structural member. Clamping members are installed on both sides of the installation groove, and the clamping members are connected to a sliding member via a transmission mechanism. During construction, the second structural member is first fixed to the annular component of the previous ring. Then, the first structural member is lowered onto the second structural member, and the lower part of the connector enters the installation groove. Simultaneously, the first structural member drives the sliding member, which in turn drives the two clamping members to approach each other and clamp the connector. Finally, the first structural member is fixed to the annular component of the previous ring.

[0016] This invention, through the cooperation of connectors, sliding parts, and clamping parts, allows the clamping parts to clamp and fix the connectors when the first structural component is placed onto the second structural component, thereby achieving the connection between the first and second structural components. This solves the technical problem in the prior art where the connection between the bottom plate, top plate, and side plate of prefabricated subway station structures requires workers to tighten multiple bolts one by one. This is not only cumbersome and labor-intensive, reducing the assembly efficiency of prefabricated subway station structures, but also slows down construction, leading to extended construction periods and increased construction costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the annular component according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the connection structure according to an embodiment of the present invention; Figure 3 This is an embodiment of the present invention. Figure 2 Enlarged view of point E; Figure 4 This is a schematic diagram of the clamping component according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of the second plate segment before connection in an embodiment of the present invention; Figure 6 This is an embodiment of the present invention. Figure 5 Enlarged view of point A; Figure 7 This is a cross-sectional view of the first plate segment before connection in an embodiment of the present invention; Figure 8 This is an embodiment of the present invention. Figure 7 Enlarged view of point B; Figure 9 This is a cross-sectional view of the second plate segment after connection according to an embodiment of the present invention; Figure 10 This is an embodiment of the present invention. Figure 9 Enlarged view of point C; Figure 11 This is a cross-sectional view of the first plate segment after connection according to an embodiment of the present invention; Figure 12 This is an embodiment of the present invention.Figure 11 Enlarged view of point D; Figure 13 This is a schematic diagram of the installation of the first / second sealing element according to an embodiment of the present invention.

[0018] In the figure, 1 is a ring-shaped component; 11 is a first structural component; 12 is a second structural component; 13 is a third structural component; 2 is a connector; 21 is a connecting plate; 22 is a mounting plate; 3 is a mounting groove; 4 is a clamping component; 4a is a first inclined plane; 41 is a first plate segment; 42 is a second plate segment; 43 is a vertical plate; 5 is a sliding component; 5a is a second inclined plane; 6 is a receiving groove; 7 is a protrusion; 8 is a first sealing component; 81 is a rubber semi-ring; 9 is a second sealing component; 10 is a grouting pipe; 15 is a groove; 16 is a channel steel; X is a first direction; Y is a second direction; Z is a third direction. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "bottom", "inner", "outer" and other terms used in this invention to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0021] It should be understood that the terms "first," "second," etc., are used in this invention to describe various types of information, but these terms are not limited to them; they are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] like Figures 1 to 13As shown, a preferred embodiment of the present invention provides a connection structure for a prefabricated subway station, comprising a first direction X, a second direction Y, and a third direction Z. The first direction X extends along the extension direction of the subway tunnel, the second direction Y is perpendicular to the first direction X, and the third direction Z is perpendicular to both the first direction X and the second direction Y. The embodiment of the present invention includes an annular component 1 for a prefabricated subway station. The annular component 1 includes a first structural member 11, a second structural member 12, and a third structural member 13. The first structural member 11 and the third structural member 13 are arranged at intervals along the third direction Z. The first structural member 11 is located above the third structural member 13. There are two second structural members 12, which are disposed between the first structural member 11 and the third structural member 13 and arranged at intervals along the second direction Y. The first structural member 11, the two second structural members 12, and the third structural member 13 enclose and form the annular component 1.

[0024] Specifically, such as Figures 5 to 12 As shown, the connection structure of the prefabricated subway station includes a connector 2, a clamping member 4, and a sliding member 5. The connector 2 is disposed on the first structural member 11 and extends along the first direction X. The second structural member 12 is provided with an installation groove 3 extending along the first direction X, and the installation groove 3 is arranged opposite to the connector 2. There are two clamping members 4, which are respectively disposed on both sides of the installation groove 3 in the first direction X, and both clamping members 4 slide along the second direction Y. There are two sliding members 5, which are disposed on the first structural members 11 on both sides of the connector 2 or on the clamping members 4 on both sides of the installation groove 3, and the sliding members 5 are connected to the clamping members 4 in a driving connection. The first structural member 11 and the second structural member 12 are close to each other so that the lower part of the connector 2 enters the installation groove 3, and the sliding members 5 drive the clamping members 4 to slide along the second direction Y to abut against the connector 2. In this embodiment of the invention, a prefabricated subway station connection structure is also provided between the second structural member 12 and the third structural member 13. The clamping member 4, the sliding member 5 and the mounting groove 3 are all provided on the top of the third structural member 13, and the connecting member 2 is provided on the bottom of the second structural member 12.

[0025] During construction, the second structural component 12 is first fixed to the annular component 1 of the previous ring. Then, the first structural component 11 is lowered onto the second structural component 12, and the lower part of the connecting component 2 enters the mounting groove 3. Simultaneously, the first structural component 11 drives the sliding component 5, which in turn drives two clamping components 4 to approach each other and clamp the connecting component 2. Subsequently, the first structural component 11 is fixed to the annular component 1 of the previous ring. This embodiment of the invention, through the cooperation between the connecting component 2, the sliding component 5, and the clamping component 4, achieves the clamping and fixing of the connecting component 2 by the clamping component 4 as the first structural component 11 is lowered onto the second structural component 12, thereby achieving the connection between the first structural component 11 and the second structural component 12. This solves the technical problem in the prior art where the connection between the bottom plate, top plate, and side plate of prefabricated subway station structures requires workers to tighten multiple bolts one by one. This is not only cumbersome and labor-intensive, reducing the assembly efficiency of prefabricated subway station structures, but also slows down construction, leading to extended construction periods and increased construction costs.

[0026] Furthermore, such as Figures 5 to 8 As shown, the connector 2 includes a connecting plate 21 and a mounting plate 22 that are perpendicular to each other and fixedly connected. The end of the connecting plate 21 away from the mounting plate 22 is fixed to the bottom of the first structural member 11 / the bottom of the second structural member 12. The first structural member 11 and the second structural member 12 are close to each other, or the second structural member 12 and the third structural member 13 are close to each other, so that both the connecting plate 21 and the mounting plate 22 enter the mounting groove 3, and drive the second inclined surface 5a and the first inclined surface 4a to slide away from each other, thereby driving the clamping member 4 to slide along the second direction Y to abut against the connecting plate 21.

[0027] Furthermore, such as Figures 5 to 8 As shown, two mounting grooves 3 are provided on the top of the second structural member 12 or the top of the third structural member 13. The two mounting grooves 3 are arranged at intervals along the second direction Y and are opposite to the two connecting members 2. To prevent wear and damage to the mounting grooves 3 during use, C-shaped steel is installed in the mounting grooves 3 with the openings facing upwards. During construction, the C-shaped steel is installed on the mold of the second structural member 12 or the third structural member 13, and then concrete is poured to embed the C-shaped steel and leave the corresponding mounting grooves 3. In this embodiment of the invention, after the first structural member 11 abuts against the second structural member 12 or the second structural member 12 abuts against the third structural member 13, the bottom of the mounting plate 22 of the connecting member 2 abuts against the C-shaped steel, enhancing the friction between the two, thereby enhancing the connection strength between the first structural member 11 and the second structural member 12 or the second structural member 12 and the third structural member 13.

[0028] Furthermore, such as Figures 4 to 8As shown, each clamping member 4 includes a first plate segment 41 and a second plate segment 42 disposed on the second structural member 12 / third structural member 13. The first plate segment 41 and the second plate segment 42 are connected sequentially along the first direction X. The first plate segment 41 is arranged close to the upper annular member 1. A vertical plate 43 is disposed on the side of the first plate segment 41 close to the mounting groove 3. The vertical plate 43 is located in the mounting groove 3 and extends along the first direction X. In this embodiment of the invention, the first plate segment 41, the second plate segment 42 and the vertical plate 43 are all made of steel plate. The first plate segment 41 and the second plate segment 42 are integrally formed, and the vertical plate 43 is welded and fixed to the side of the first plate segment 41 close to the mounting groove 3. The first plate segment 41 and the second plate segment 42 of each clamping member 4 are placed on the top of the second structural member 12 / the top of the third structural member 13 on both sides of the mounting groove 3, and the vertical plate 43 is located in the mounting groove 3.

[0029] Furthermore, such as Figures 5 to 12 As shown, each clamping member 4 has a first inclined surface 4a on the side away from the mounting groove 3, and the first inclined surface 4a slopes downward along the horizontal direction away from the mounting groove 3. In this embodiment of the invention, the first inclined surface 4a is provided on the side of the first plate segment 41 away from the mounting groove 3 and the side of the second plate segment 42 away from the mounting groove 3, and the first inclined surface 4a is formed by machining.

[0030] Furthermore, such as Figure 4 and Figure 8 As shown, each sliding member 5 has a second inclined surface 5a at its bottom, which slides in conjunction with the first inclined surface 4a. In this embodiment of the invention, there are four sliding members 5, each of which is a vertical plate extending along the first direction X. The second inclined surface 5a is located at the bottom of the vertical plate and is formed by machining. The four sliding members 5 are respectively disposed on the first inclined surface 4a of each clamping member 4, and the first inclined surface 4a abuts against the second inclined surface 5a. Moreover, the top of the second structural member 12 or the top of the third structural member 13 is provided with a receiving groove 6 corresponding to the sliding member 5. When the first structural member 11 and the second structural member 12 approach each other, or when the second structural member 12 and the third structural member 13 approach each other, the first structural member 11 / second structural member 12 presses down on the sliding member 5, and the sliding member 5 moves downward and enters the receiving groove 6, thereby driving the second inclined surface 5a and the first inclined surface 4a to slide away, and then driving the second plate segment 42 and the vertical plate 43 to slide and abut against the connecting member 2 along the second direction Y.

[0031] like Figures 5 to 12As shown, in order to enhance the clamping force between the clamping member 4 and the connecting member 2, a vertical plate 43 is provided on the first plate segment 41 of the clamping member 4. The vertical plate 43 is located in the mounting groove 3. After the first structural member 11 and the second structural member 12 are connected, or after the third structural member 13 and the second structural member 12 are connected, the clamping member 4 abuts against and clamps the connecting member 2. The presence of the vertical plate 43 increases the contact area between the clamping member 4 and the connecting member 2, enhances the friction between the clamping member 4 and the connecting member 2, and strengthens the clamping force between the clamping member 4 and the connecting member 2. However, the presence of the vertical plate 43 prevents the connector 2 from directly entering the mounting groove 3. Therefore, when lowering the second structural member 12 onto the third structural member 13 or the first structural member 11 onto the second structural member 12, the connector 2 is aligned with the mounting groove 3, and the first structural member 11 or the second structural member 12 is slowly lowered into the range of the second plate segment 42. At this time, the sliding member 5 located in the range of the second plate segment 42 tilts downward and enters the receiving groove 6. The second plate segment 42 slides out horizontally, but does not clamp the connector 2. To install the first structural member 11 or the second structural member 12 into place, the first structural member 11 or the second structural member 12 is pulled to slide towards the upper ring member 1 using longitudinal tensioning and locking technology. When the first structural member 11 or the second structural member 12 enters the range of the first plate segment 41, the sliding member 5 within the range of the first plate segment 41 continuously falls into the receiving groove 6, and the first plate segment 41 continuously slides out. The vertical plate 43 abuts against the connecting plate 21 of the connecting member 2. After the first structural member 11 or the second structural member 12 abuts against the upper ring member 1, the entire vertical plate 43... The entire plate slides out and fully abuts against the connector 2, while the second plate segment 42 also fully abuts against the connector 2. At this time, the connector 2 and the clamping member 4 are fully clamped and fixed, realizing the connection between the first structural member 11 and the second structural member 12 or the second structural member 12 and the third structural member 13. At the same time, after the second structural member 12 / the first structural member 11 abuts against the previous ring member 1, it is fixed to the previous ring member 1, realizing the connection of the circumferential joints between the structural members inside the ring member 1, and also realizing the connection of the longitudinal joints between the ring members 1.

[0032] Furthermore, such as Figure 13As shown, to achieve waterproofing requirements, grouting treatment is required in the installation groove 3. Since the grouting of the longitudinal joints between each annular component 1 and the grouting of the circumferential joints between each structural component within the annular component 1 need to be done separately, a first sealing element 8 is provided at the joint between the first structural component 11 and the second structural component 12 on the side of the annular component 1 closest to the previous annular component 1, and a second sealing element 9 is provided at the joint between the third structural component 13 and the second structural component 12. The first sealing element 8 and the second sealing element 9 have the same structure. The first sealing element 8 includes... Two rubber semi-rings 81 are provided, one located at the lower part of the first structural member 11 and the other at the upper part of the second structural member 12. After the first structural member 11 and the second structural member 12 are connected, the two rubber semi-rings 81 form a sealing ring. The mounting groove 3 is located inside the sealing ring. The sealing ring, the first structural member 11, the second structural member 12, and the upper annular member 1 form a grouting space. A grouting pipe 10 is provided on the third structural member 13 / second structural member 12, and the grout outlet of the grouting pipe 10 communicates with the grouting space. The sealing ring separates the grouting area of ​​the circumferential joint from the grouting area of ​​the longitudinal joint, so as to achieve the effect of separate grouting for the circumferential joint and the longitudinal joint.

[0033] During construction, after the first structural component 11 and the second structural component 12 or the second structural component 12 and the third structural component 13 have been connected and fixedly connected to the previous ring component 1, grout is injected into the grouting space through the grouting pipe 10. After the grout fills the grouting space, the grout flows into the joint between the installation groove 3 and the structural component until the grout flows out from the end of the installation groove 3 away from the previous ring component 1.

[0034] Furthermore, such as Figure 2 As shown, the top of the second structural member 12 or the top of the third structural member 13 is provided with a protrusion 7 extending along the first direction X, and the bottom of the first structural member 11 / the bottom of the second structural member 12 is provided with a groove 15 matching the protrusion 7. In this embodiment of the invention, the second structural member 12 or the third structural member 13 is provided with two protrusions 7, both of which are located between the two connecting members 2 and are arranged at intervals along the second direction Y. The grooves 15 correspond one-to-one with the protrusions 7. The cooperation between the protrusions 7 and the grooves 15 enhances the lateral force resistance between the first structural member 11 and the second structural member 12 or the second structural member 12 and the third structural member 13, and also plays a positioning and guiding role in the installation between the structural members.

[0035] like Figures 1 to 13 As shown, based on the prefabricated subway station connection structure provided in the above embodiments of the present invention, the present invention provides a construction method for the connection structure of a prefabricated subway station, including the following steps: S1. The third structural member 13 is abutted and fixed to the previous annular member 1; In step S1, the third structural member 13 is pulled upwards to the ring member 1 using longitudinal tensioning and locking technology. Once the third structural member 13 abuts against the ring member 1, it is fixedly connected to the ring member 1. The longitudinal tensioning and locking technology is a mature process. By pre-reserving prestressed channels in the structural members within the ring member 1, after the structural members are installed, the longitudinal channels of multiple ring members 1 are aligned, forming a continuous tensioning channel. Prestressed steel bars or strands are inserted into these channels, and then a hydraulic jack is used to tension the prestressed tendons at one end, causing the multiple ring members 1 to abut against each other tightly. After tensioning to the desired position, the prestressed tendons are anchored to the structural members of the ring member 1 using anchors, thus achieving the connection and fixation between the ring members 1. The specific operating procedures will not be described again.

[0036] S2. Slowly lower the second structural component 12 until the second structural component 12 is lowered onto the third structural component 13; In step S2, as Figures 5 to 12 As shown, to enhance the clamping force between the clamping member 4 and the connecting member 2, a vertical plate 43 is provided on the first plate segment 41 of the clamping member 4. The vertical plate 43 is located in the mounting groove 3. After the third structural member 13 and the second structural member 12 are connected, the clamping member 4 abuts against and clamps the connecting member 2. The presence of the vertical plate 43 increases the contact area between the clamping member 4 and the connecting member 2, enhances the friction between the clamping member 4 and the connecting member 2, and strengthens the clamping force between the clamping member 4 and the connecting member 2. However, the presence of the vertical plate 43 prevents the connecting member 2 from directly entering the mounting groove 3. Therefore, when lowering the second structural member 12 onto the third structural member 13, the connecting member 2 is aligned with the mounting groove 3, and the second structural member 12 is slowly lowered into the range of the second plate segment 42 on the third structural member 13. At this time, the sliding member 5 located within the range of the second plate segment 42 tilts downward and enters the receiving groove 6. The second plate segment 42 slides out horizontally, but does not clamp the connecting member 2. This also lays the foundation for pulling the second structural member 12 to slide in step S3.

[0037] S3. The second structural member 12 is abutted and fixed to the upper ring-shaped member 1; In step S3, as the sliding member 5 within the range of the second plate segment 42 tilts downwards into the receiving groove 6, the second plate segment 42 slides out horizontally but does not clamp the connecting member 2. In order to install the second structural member 12 into place, this embodiment of the invention uses longitudinal tensioning and locking technology to pull the second structural member 12 to slide upwards into the annular member 1. When the second structural member 12 enters the range of the first plate segment 41, the sliding member 5 within the range of the first plate segment 41 continuously falls into the receiving groove 6, the first plate segment 41 continuously slides out, and the vertical plate 43 abuts against the connecting plate 21 of the connecting member 2. After the second structural member 12 abuts against the previous ring-shaped member 1, the entire vertical plate 43 slides out and completely abuts against the connector 2. At the same time, the second plate segment 42 also completely abuts against the connector 2. At this time, the connector 2 and the clamping member 4 are completely clamped and fixed, realizing the connection between the second structural member 12 and the third structural member 13. At the same time, after the second structural member 12 abuts against the previous ring-shaped member 1, it is fixed to the previous ring-shaped member 1. Step S3 realizes the connection of the circumferential joints between the structural members inside the ring-shaped member 1, and also realizes the connection of the longitudinal joints between the ring-shaped members 1.

[0038] S4. Grout into the joint between the third structural member 13 and the second structural member 12; In step S4, as Figure 13 As shown, the second structural component 12 and the third structural component 13 have been connected and fixedly connected to the previous ring-shaped component 1. Grout is injected into the grouting space through the grouting pipe 10. After the grouting space is filled with mortar, the mortar flows into the joint between the installation groove 3 and the structural component until the mortar flows out from the end of the installation groove 3 away from the previous ring-shaped component 1.

[0039] S5. Repeat steps S1 to S4 to connect the first structural member 11 and the second structural member 12.

[0040] In summary, this invention provides a connection structure and construction method for a prefabricated subway station. A connector 2 is provided on the first structural member 11 / second structural member 12, and an installation groove 3 is provided on the second structural member 12 or the third structural member 13. Clamping members 4 are provided on both sides of the installation groove 3, and the clamping members 4 are connected to the sliding member 5 via a transmission connection. During construction, the third structural member 13 or the second structural member 12 is first fixed to the annular member 1 of the previous ring. Then, the first structural member 11 or the second structural member 12 is lowered onto the second structural member 12 or the third structural member 13, and the lower part of the connector 2 enters the installation groove 3. Simultaneously, the first structural member 11 or the second structural member 12 drives the sliding member 5, which in turn drives the two clamping members 4 to approach each other and clamp the connector 2. Finally, the first structural member 11 or the second structural member 12 is fixed to the annular member 1 of the previous ring.

[0041] In this embodiment of the invention, the clamping member 4 clamps and fixes the connecting member 2 by the cooperation between the connecting member 2, the sliding member 5, and the clamping member 4, so that the first structural member 11 is placed on the second structural member 12 or the second structural member 12 is placed on the third structural member 13. This achieves the connection between the first structural member 11 and the second structural member 12 or the second structural member 12 and the third structural member 13. This solves the technical problem in the prior art that the connection between the bottom plate, top plate and side plate of the prefabricated subway station structure requires workers to tighten multiple bolts one by one. This is not only cumbersome and labor-intensive, reducing the assembly efficiency of the prefabricated subway station structure, but also slows down the construction, resulting in extended construction period and increased construction cost.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A connection structure for a prefabricated subway station, used for a ring-shaped component (1) in a prefabricated subway station, said ring-shaped component (1) comprising a first structural member (11) and a second structural member (12), characterized in that, The connection structure of the prefabricated subway station includes: The first direction (X) extends along the extension direction of the subway tunnel; A second direction (Y) is perpendicular to the first direction (X); A connector (2) is disposed on the first structural member (11), and the connector (2) extends along the first direction (X); The second structural member (12) is provided with a mounting groove (3) extending along the first direction (X), and the mounting groove (3) is arranged opposite to the connector (2); Clamping member (4), there are two clamping members (4), and they are respectively disposed on both sides of the first direction (X) of the mounting groove (3). Both clamping members (4) slide along the second direction (Y). Sliding member (5), there are two sliding members (5), both of which are disposed on the first structural member (11) on both sides of the connecting member (2) or on the clamping member (4) on both sides of the mounting groove (3), and the sliding member (5) is connected to the clamping member (4) in a transmission manner. The first structural member (11) and the second structural member (12) are brought close to each other so that the lower part of the connector (2) enters the mounting groove (3) and the sliding member (5) drives the clamping member (4) to slide against the connector (2) in the second direction (Y).

2. The connection structure of the prefabricated subway station according to claim 1, characterized in that, The connection structure of the prefabricated subway station also includes a third direction (Z), which is perpendicular to the first direction (X) and the second direction (Y). The annular component (1) further includes a third structural component (13). The first structural component (11) and the third structural component (13) are arranged at intervals along the third direction (Z). The first structural component (11) is located above the third structural component (13). There are two second structural components (12). The two second structural components (12) are disposed between the first structural component (11) and the third structural component (13) and are arranged at intervals along the second direction (Y). The first structural component (11), the two second structural components (12) and the third structural component (13) enclose and form the annular component (1). The prefabricated subway station connection structure is also provided between the second structural component (12) and the third structural component (13).

3. The connection structure of the prefabricated subway station according to claim 1, characterized in that, Each of the clamping members (4) is provided with a first inclined surface (4a) on the side away from the mounting groove (3), and the first inclined surface (4a) is inclined downward along the horizontal direction away from the mounting groove (3); Each of the sliding members (5) has a second inclined surface (5a) at its bottom, and the second inclined surface (5a) slides in cooperation with the first inclined surface (4a); The first structural member (11) and the second structural member (12) move closer to each other to drive the second inclined surface (5a) and the first inclined surface (4a) to slide away from each other, thereby driving the clamping member (4) to slide against the connecting member (2) along the second direction (Y).

4. The connection structure of the prefabricated subway station according to claim 3, characterized in that, The connector (2) includes a connecting plate (21) and a mounting plate (22) that are perpendicular to each other and fixedly connected. One end of the connecting plate (21) away from the mounting plate (22) is fixed to the bottom of the first structural member (11). The first structural member (11) and the second structural member (12) move closer to each other so that the connecting plate (21) and the mounting plate (22) both enter the mounting groove (3), and drive the second inclined surface (5a) and the first inclined surface (4a) to slide away, thereby driving the clamping member (4) to slide against the connecting plate (21) along the second direction (Y).

5. The connection structure of the prefabricated subway station according to claim 3, characterized in that, Each of the clamping members (4) includes a first plate segment (41) and a second plate segment (42) disposed on the second structural member (12). The first plate segment (41) and the second plate segment (42) are connected sequentially along the first direction (X). The first plate segment (41) is arranged close to the annular member (1) of the previous ring. The first inclined surface (4a) is disposed on the side of the first plate segment (41) away from the mounting groove (3) and the side of the second plate segment (42) away from the mounting groove (3). The first plate segment (41) is provided with a vertical plate (43) on the side near the mounting groove (3). The vertical plate (43) is located in the mounting groove (3) and extends along the first direction (X). The first structural member (11) and the second structural member (12) move closer to each other to drive the second inclined surface (5a) and the first inclined surface (4a) to slide away, thereby driving the second plate segment (42) and the vertical plate (43) to slide and abut against the connector (2) along the second direction (Y).

6. The connection structure of the prefabricated subway station according to claim 2, characterized in that, On the side of the annular member (1) near the previous annular member (1), a first sealing element (8) is provided at the joint between the first structural member (11) and the second structural member (12), and a second sealing element (9) is provided at the joint between the third structural member (13) and the second structural member (12). The first sealing element (8) has the same structure as the second sealing element (9). The first sealing element (8) includes two rubber semi-rings (81), one of which is located at the lower part of the first structural member (11), and the other is located at the upper part of the second structural member (12). After the first structural member (11) and the second structural member (12) are connected, the two rubber semi-rings (81) surround each other to form the sealing ring. The mounting groove (3) is located inside the sealing ring. The sealing ring, the first structural member (11), the second structural member (12) and the annular member (1) of the previous ring form a grouting space. A grouting pipe (10) is provided on the third structural component (13) / the second structural component (12), and the grout outlet of the grouting pipe (10) is connected to the grouting space.

7. The connection structure of the prefabricated subway station according to claim 1, characterized in that, The top of each of the second structural members (12) is provided with a protrusion (7) extending along the first direction (X). The bottom of the first structural member (11) is provided with a groove (15) that matches the protrusion (7).

8. A construction method for a connection structure of a prefabricated subway station, employing the connection structure of a prefabricated subway station as described in any one of claims 2 to 7, characterized in that, Includes the following steps: S1. The third structural member (13) is abutted and fixed to the annular member (1) of the previous ring; S2. Slowly lower the second structural component (12) until the second structural component (12) is lowered onto the third structural component (13); S3. The second structural member (12) is abutted and fixed to the annular member (1) of the previous ring; S4. Grouting is injected into the joint between the third structural member (13) and the second structural member (12); S5. Repeat steps S1 to S4 to connect the first structural component (11) and the second structural component (12).

9. The construction method for the connection structure of the prefabricated subway station according to claim 8, characterized in that, In step S2, the connector (2) is aligned with the mounting groove (3), and the second structural member (12) is slowly lowered into the range of the second plate segment (42) on the third structural member (13); In step S3, the second structural member (12) is driven to slide by longitudinal tensioning and locking technology, and after the second structural member (12) abuts against the annular member (1) of the previous ring, it is fixed to the annular member (1) of the previous ring.

10. The construction method for the connection structure of the prefabricated subway station according to claim 8, characterized in that, In step S4, grout is injected through the grouting pipe (10) until the grout flows out from one end of the mounting groove (3) away from the annular member (1) of the previous ring.

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