A comprehensive pipe gallery deformation joint water stop plugging mechanism and construction method

Abstract

The present application relates to comprehensive pipe gallery waterproof construction technical field, specifically a kind of comprehensive pipe gallery deformation joint water stop plugging mechanism and construction method.The water stop plugging mechanism includes water stop frame, outer-pasted water stop belt, fitting assembly, locking assembly, linkage assembly and support frame;Wherein, fitting assembly is arranged at the corner of water stop frame, locking assembly is used to fix the outer-pasted water stop belt and the two sides of fitting assembly at the position of the linear segment on the two sides of deformation joint corner, linkage assembly includes corner piece and the adjusting assembly of pair arrangement, for drive arc-shaped plate towards deformation joint corner region fitting compression.The construction method includes: first, the outer-pasted water stop belt at the linear segment on the two sides of deformation joint corner is positioned and fixed, then adjusting linkage assembly is gradually compressed and fitted to corner region.By zoned plugging to linear segment and corner region, the fitting continuity and water stop plugging reliability of corner part are improved.

Description

Technical Field

[0001] This invention relates to the field of waterproof construction technology for integrated utility tunnels, specifically to a water-stopping and sealing mechanism and construction method for expansion joints in integrated utility tunnels. Background Technology

[0002] Integrated utility tunnels, as underground tunnel spaces in cities, integrate various municipal pipelines such as electricity, communications, heating, and water supply, serving as crucial infrastructure for ensuring urban operation. Because integrated utility tunnels often employ open-cut and cast-in-place construction techniques and require long-term underground service, they are susceptible to factors such as segmented construction, temperature variations, and uneven ground settlement. Therefore, expansion joints are typically installed between adjacent structural sections to release structural stress and reduce the risk of cracking. These expansion joints are considered weak points in the utility tunnel structure, and the quality of their waterproofing and sealing directly affects the tunnel's impermeability and structural durability.

[0003] To improve the installation accuracy and overall sealing integrity of waterstops at expansion joints, existing technologies have developed integrated installation modules that prefabricate the waterstop and end formwork as a single unit. These modules utilize a steel frame that matches the transverse cross-sectional shape of the utility tunnel, pre-assembling the embedded waterstop, external waterstop, and end sealing plates into a single structure before hoisting it to the construction location. This approach effectively avoids the cumbersome process and potential misalignment of the waterstop in traditional wooden formwork sealing methods, thus improving construction efficiency and aesthetic quality to a certain extent.

[0004] However, in practical engineering applications, the aforementioned integrated installation modules still have the following limitations: the module structure mainly focuses on the rigidity of the overall frame and the pre-positioning of the waterstop, lacking detailed technical means for the bonding treatment of external waterstops in the corner areas of expansion joints. Specifically, due to factors such as directional changes, corner transitions, and limited operating space in corner areas, it is difficult for external waterstops to maintain continuous and uniform bonding with the outer mold surface in these areas. Existing integrated modules often rely solely on the overall compression of the module's outer frame or simple clamping components for corner filling, failing to provide dedicated bonding adjustment mechanisms for the geometric characteristics and stress requirements of the corners. This leads to problems such as incomplete bonding, residual gaps, and uneven compaction at corners, which not only affects the overall waterproofing effect of the expansion joint but also weakens the sealing consistency of the integrated module in the corner areas to some extent.

[0005] Therefore, there is an urgent need to provide a water-stopping mechanism and construction method specifically for the corner area of ​​expansion joints, based on the existing integrated installation technology of expansion joints, in order to make up for the shortcomings of integrated modules in the corner detail treatment and further improve the adhesion and sealing reliability of external waterstops in the corner area. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the purpose of this invention is to provide a water-stopping mechanism and construction method for integrated pipe gallery expansion joints, so as to solve the problem that it is difficult to achieve continuous compaction in the corner area through gradual adjustment in the existing expansion joint water-stopping, thus affecting the stability of the corner sealing.

[0007] To achieve the above objectives, the present invention provides a water-stopping and sealing mechanism for expansion joints in integrated utility tunnels, comprising: The waterstop frame and external waterstop strip are characterized by comprising: An adhesive assembly is disposed at the corner of the waterstop frame, the adhesive assembly comprising an arc-shaped plate; At least one pair of locking components are disposed on the waterstop frame, with one end fixedly connected to the external waterstop strip and the other end fixedly connected to the bonding component; and A linkage component is mounted on the side of the bonding component away from the external waterstop via a support frame. The linkage component includes a corner piece and a pair of adjustment components. The corner component includes a fitting component and short and long arms fixed to its two ends. The adjustment component cooperates with the short and long arms respectively to drive the fitting component to abut against the arc plate.

[0008] Furthermore, the bonding assembly also includes two fixing plates fixedly connected to both ends of the arc-shaped plate; The arc-shaped plate is a deformable workpiece, and the two fixed plates are arranged at an angle.

[0009] Furthermore, each of the locking components includes: The clamping member has several locking teeth on the side facing the external waterstop, and the locking teeth engage with the corresponding locking part of the external waterstop. A folded connecting plate includes a U-shaped component and extension plates disposed at both ends of the U-shaped component; the U-shaped component is snapped onto a crossbar on the waterstop frame; and At least two adjusting bolts are threaded through the extension plate and connected to the clamping member.

[0010] Furthermore, the linkage component also includes a grooved support plate, which is fixedly connected to the support frame. The grooved support plate includes a first base plate and a second base plate extending and connected along both sides of the corner, a lateral limiting plate disposed on the outer edge of the first base plate and the second base plate, and a baffle disposed at the end of the first base plate and the second base plate.

[0011] The first base plate, the second base plate, the lateral limiting plate, and the baffle together form an upward-opening support groove.

[0012] Furthermore, each of the aforementioned adjustment components includes: A rotating block is rotatably mounted in a U-shaped groove at the end of the short arm or the long arm via a pin; A U-shaped slider, which is slidably disposed within the support groove along the extension direction of the short arm or the long arm; and An adjusting screw passes through the baffle and abuts against the vertical plate of the U-shaped slider.

[0013] The U-shaped slider includes a vertical plate and horizontal plates disposed at both ends of the vertical plate.

[0014] Furthermore, the adjustment component also includes: A force transmission block, which is fixedly mounted on the vertical plate and located between the vertical plate and the rotating block; and At least two buffers are provided at the ends of the cross plate.

[0015] This invention also provides a method for sealing and plugging the expansion joints of integrated utility tunnels, applied to the aforementioned sealing and plugging mechanism for expansion joints of integrated utility tunnels, comprising the following steps: The external waterstop is placed on the straight section on both sides of the corner of the expansion joint and fixedly connected to the locking assembly; Adjust the locking assembly to drive the external waterstop and the bonding assembly to move toward the outer mold until the external waterstop and the bonding assembly are both tightly attached to the outer mold at the straight sections on both sides of the expansion joint corner. After completing the above operations, adjust the paired adjustment components in the linkage assembly to drive the corner piece to gradually approach the arc plate, thereby making the arc plate fit and press against the corner area of ​​the expansion joint.

[0016] Furthermore, the paired adjustment components in the linkage assembly are adjusted separately, including: By turning the adjusting screw, the corresponding U-shaped slider is pushed to slide along the support groove, which in turn drives the corner component to move via the force transmission block and the rotating block; during this process... First, adjust the adjustment component that works with the short arm until the corner piece is close to the arc plate; The adjustment assembly that works in conjunction with the long arm is then adjusted to bring the corner piece closer to the arc-shaped plate. Alternately and repeatedly adjust the adjustment components corresponding to the short arm and the long arm until the arc plate is completely pressed against the corner of the outer mold.

[0017] Beneficial Effects: Compared with existing technologies, this invention achieves functional differentiation between the fixed straight section and the progressive compression in the corner area by setting an adhesive assembly containing an arc-shaped plate at the corner of the waterstop frame, and by setting a locking assembly and a linkage assembly to work together. Specifically, the locking assembly independently compresses and fixes the external waterstop on both sides of the expansion joint's straight section, ensuring reliable adhesion in the straight section area; the linkage assembly applies progressive compression force to the arc-shaped plate in the adhesive assembly through the corner component and paired adjustment components. The corner component consists of the adhesive component and its short and long arms fixed at both ends. The adjustment components cooperate with the short and long arms respectively. By adjusting the adjustment components on the short and long arm sides respectively, the corner component can be driven to apply differentiated multi-directional thrust to the arc-shaped plate, allowing the arc-shaped plate to adapt to the geometric contour of the expansion joint corner after being compressed, thus driving the external waterstop to form a continuous and uniform adhesion at the corner point and its transition area on both sides. This design integrates reliable fixing of straight sections with progressive adjustment of corner areas, significantly reducing the risk of leakage in corner areas due to improper fit, and improving the consistency and reliability of overall waterproof sealing of expansion joints. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 A front view of a water-stopping and sealing mechanism for expansion joints in a utility tunnel at a corner. Figure 2 An oblique view of a water-stopping and sealing mechanism for expansion joints in a utility tunnel at a corner; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 A bottom view of a water-stopping and sealing mechanism for expansion joints in a utility tunnel at a corner. Figure 5 for Figure 4 A magnified view of a section at point B in the middle; Figure 6 This is a schematic diagram of the linkage component structure; Figure 7 A flowchart illustrating the overall process of a method for sealing and plugging expansion joints in a comprehensive utility tunnel. Figure 8 This is a flowchart of step S4.

[0020] Explanation of reference numerals in the attached figures: 1-Waterstop frame, 11-Horizontal bar; 2-External waterstop strip, 21-Snap-fit ​​part; 3-Fitting assembly, 31-Arc plate, 32-Fixing plate; 4-Locking assembly, 41-Pressure piece, 411-Snap-fit ​​tooth, 42-Folded connecting plate, 421-U-shaped piece, 422-Extension plate, 43-Adjusting bolt; 5-Linkage assembly, 51-Corner component, 511-Fitting component, 512-Short arm, 513-Long arm, 52-Adjustment assembly, 521-Rotating block, 5211-Pin, 522-U-shaped slider, 5221-Vertical plate, 5222-Horizontal plate, 523-Adjusting screw, 524-Force transmission block, 525-Buffer component, 53-Channel-shaped support plate, 531-First base plate, 532-Second base plate, 533-Side limiting plate, 534-Baffle; 6-Support frame. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Example 1 like Figure 1 , Figure 3 and Figure 6 As shown, this embodiment provides a water-stopping and sealing mechanism for expansion joints in integrated utility tunnels, including a water-stopping frame 1 and an external water-stopping strip 2, and further including: a bonding component 3, a locking component 4, and a linkage component 5; the linkage component 5 is disposed on the side of the bonding component 3 away from the external water-stopping strip 2 via a support frame 6.

[0023] The fitting component 3 is located at the corner of the waterstop frame 1, and the fitting component 3 includes an arc-shaped plate 31; at least one pair of locking components 4 are located on the waterstop frame 1, with one end fixedly connected to the external waterstop strip 2 and the other end fixedly connected to the fitting component 3; the linkage component 5 includes a corner piece 51 and a pair of adjusting components 52; the corner piece 51 includes a fitting piece 511 and a short arm 512 and a long arm 513 fixedly connected to both ends of the fitting piece 511, and the adjusting components 52 cooperate with the short arm 512 and the long arm 513 respectively to drive the fitting piece 511 to abut against the arc-shaped plate 31.

[0024] Specifically, the externally attached waterstop 2 is mainly installed on the straight sections on both sides of the corner of the expansion joint and is connected to the waterstop frame 1 through the locking assembly 4; the corner area is then fitted by the corner fitting assembly 3. The linkage assembly 5 is located on the back of the fitting assembly 3, and through the paired adjustment assemblies 52, it acts on the short arm 512 and the long arm 513 of the corner piece 51, causing the corner piece 51 to drive the fitting piece 511 to gradually approach the arc plate 31, and further push the arc plate 31 towards the corner area of ​​the expansion joint for fitting and pressing. Thus, the straight sections and corner areas on both sides of the expansion joint corner are treated in a partitioned manner. The straight sections are first fixed and fitted by the locking assembly 4, and the corner areas are then filled and compacted by the fitting assembly 3 and the linkage assembly 5.

[0025] like Figure 1 and Figure 3 As shown, the bonding component 3 further includes two fixing plates 32 fixedly connected to both ends of the arc plate 31; wherein the arc plate 31 is a deformable workpiece, and the two fixing plates 32 are arranged at an included angle.

[0026] Specifically, two fixing plates 32 are located on both sides of the corner of the expansion joint and are arranged along the direction of the corner. The two fixing plates 32 are preferably made of plate-shaped metal parts and can be fixedly connected to the arc-shaped plate 31 by welding, riveting, or screwing. The two fixing plates 32 are arranged at an angle, the angle corresponding to the contour of the corner of the expansion joint. The arc-shaped plate 31 is connected between the two fixing plates 32 and spans the outer side of the corner area. As a preferred embodiment, the arc-shaped plate 31 is a plate-shaped part with a certain elastic deformation capacity. Compared with ordinary rigid corner plates, the arc-shaped plate 31 can produce controlled deformation under the drive of the linkage component 5, causing its middle part and the area near the corner to gradually conform inwards. The two fixing plates 32 form boundary constraints on both ends of the arc-shaped plate 31, thereby maintaining the overall continuity of the arc-shaped plate 31 during the middle conformation process and avoiding single-point contact only in a local area.

[0027] This embodiment further specifies that the two fixing plates 32 serve as connecting transition pieces between the bonding component 3 and the two side locking components 4, that is, the end of the locking component 4 near the corner is connected to the corresponding side fixing plate 32. The straight segment locking structure and the corner supplementing structure form an integral connection relationship. When the locking component 4 adjusts the straight segment, the fixing plate 32 can be adjusted synchronously with the external waterstop 2 toward the outer mold direction.

[0028] like Figure 1 and Figure 3-5As shown, the locking assembly 4 includes a clamping member 41, a folded connecting plate 42, and at least two adjusting bolts 43; wherein, the clamping member 41 has a snap-fit ​​tooth 411 on the side facing the external waterstop 2, and the snap-fit ​​tooth 411 snaps into the snap-fit ​​part 21 corresponding to the external waterstop 2; the folded connecting plate 42 includes a U-shaped member 421 and extension plates 422 disposed at both ends of the U-shaped member 421; the U-shaped member 421 snaps into the crossbar 11 on the waterstop frame 1; at least two adjusting bolts 43 pass through the extension plates 422 and are threadedly connected to the clamping member 41.

[0029] Specifically, the locking assembly 4 is located on the straight section area on both sides of the corner of the expansion joint, used to fix and adhere the portion of the external waterstop 2 located on the straight section to the outer mold. The clamping member 41 is located between the external waterstop 2 and the waterstop frame 1, and has a locking tooth 411 on the side facing the external waterstop 2. The external waterstop 2 has a corresponding locking part 21, which can be a rib, groove, thickened edge, or flange, etc. During assembly, the clamping member 41 engages with the locking part 21 of the external waterstop 2 through the locking tooth 411, creating a synchronous movement relationship between the clamping member 41 and the external waterstop 2, thereby preventing the clamping member 41 from slipping relative to the external waterstop 2 during subsequent adjustments.

[0030] The U-shaped part 421 of the folded connecting plate 42 is snapped onto the crossbar 11 of the waterstop frame 1, and the extension plates 422 at both ends are used to install the adjusting bolts 43. The adjusting bolts 43 pass through the extension plates 422 and are threadedly connected to the clamping member 41. When the adjusting bolts 43 are turned, the clamping member 41 moves relative to the folded connecting plate 42 in the direction of the outer mold. Since the clamping member 41 and the external waterstop 2 have formed a snap-fit ​​fixed relationship, when the clamping member 41 moves, it drives the external waterstop 2 to move synchronously toward the direction of the outer mold. At the same time, since the other end of the locking assembly 4 is connected to the fixing plate 32 of the bonding assembly 3, the fixing plate 32 can also be adjusted synchronously toward the direction of the outer mold.

[0031] With the above structure, the external waterstop 2 and the corresponding fixing plate 32 can be simultaneously attached to the outer mold at the straight section positions on both sides of the expansion joint corner. The folded connecting plate 42 adopts the structural form of U-shaped part 421 and extension plate 422. On the one hand, it can form a quick installation relationship with the crossbar 11 of the waterstop frame 1 with the help of U-shaped part 421. On the other hand, it can provide space for the adjusting bolt 43 through the extension plates 422 at both ends, so that the adjustment direction of the clamping part 41 is consistent with the mold attachment direction of the external waterstop 2.

[0032] like Figure 1 and Figure 6As shown, the linkage component 5 also includes a grooved support plate 53, which is fixedly connected to the support frame 6. The grooved support plate 53 includes a first base plate 531 and a second base plate 532 extending and connected along both sides of the corner, a lateral limiting plate 533 disposed on the outer edge of the first base plate 531 and the second base plate 532, and a baffle 534 disposed at the end of the first base plate 531 and the second base plate 532. The first base plate 531, the second base plate 532, the lateral limiting plate 533 and the baffle 534 together form an upward-opening support groove.

[0033] Specifically, the trough-shaped support plate 53 is fixedly installed on the support frame. The first base plate 531 and the second base plate 532 extend along both sides of the corner of the expansion joint and connect at the corner, thereby forming a bottom support base corresponding to the corner profile. The lateral limiting plate 533 is provided on the outer edge of the first base plate 531 and the second base plate 532, and the baffle 534 is provided at the end of each base plate.

[0034] A support groove is formed by the first base plate 531, the second base plate 532, the lateral limiting plate 533, and the baffle 534. This support groove serves as the installation and guiding space for the sliding parts, force transmission parts, and limiting parts of the subsequent adjustment assembly 52. ​​The first base plate 531 and the second base plate 532 provide support surfaces, the lateral limiting plate 533 restricts the lateral displacement of the components, and the baffle 534 forms an end mounting surface and provides a position for the adjustment screw 523 to pass through.

[0035] like Figure 3 and Figure 6 As shown, each of the adjustment components 52 includes: a rotating block 521, a U-shaped slider 522, and an adjusting screw 523; wherein, the rotating block 521 is rotatably disposed in a U-shaped groove opened at the end of the short arm 512 or the long arm 513 by means of a pin 5211; the U-shaped slider 522 is slidably disposed in the support groove along the extension direction of the short arm 512 or the long arm 513; the adjusting screw 523 passes through the baffle 534 and abuts against the vertical plate 5221 of the U-shaped slider 522; the U-shaped slider 522 includes a vertical plate 5221 and horizontal plates 5222 disposed at both ends of the vertical plate 5221.

[0036] Specifically, an adjustment assembly 52 is provided on each side of the corner piece 51. The two sets of adjustment assemblies 52 have the same structure, but correspond to the short arm 512 and the long arm 513 respectively. The U-shaped slider 522 is set in the support groove and slides along the extension direction of the corresponding action arm. The vertical plate 5221 of the U-shaped slider 522 is located on the side close to the corner piece 51, and the horizontal plates 5222 at both ends extend along the first base plate 531 or the second base plate 532, forming a guiding relationship with the support groove, so that the U-shaped slider 522 maintains a stable posture when moving.

[0037] It should be noted that the corner piece 51 has a short arm 512 and a long arm 513 at each end, and the paired adjustment components 52 cooperate with the short arm 512 and the long arm 513 respectively. Because the short arm 512 and the long arm 513 are of different lengths, even if the structures of the adjustment components 52 on both sides are the same, the lever arm relationship and adjustment response formed when they act on the corner piece 51 are different. Therefore, during the adjustment process, the side with the short arm 512 is more likely to first cause the corner piece 51 to rotate initially, causing the contact piece 511 to approach the arc plate 31 first; the side with the long arm 513 continues to apply force to the contact piece 511 in subsequent adjustments, causing the arc plate 31 to gradually move towards the corner area and press firmly. Through the above-mentioned unequal arm structure, the adjustment process in the corner area can form a gradual path of first approaching and then compacting.

[0038] An adjusting screw 523 passes through a baffle 534, with its axis aligned with the sliding direction of the U-shaped slider 522. When the adjusting screw 523 is turned, it acts on the vertical plate 5221 of the U-shaped slider 522, causing the U-shaped slider 522 to slide along the extension direction of the corresponding short arm 512 or long arm 513. A rotating block 521 is rotatably mounted in the U-shaped groove at the end of the short arm 512 or long arm 513 via a pin 5211, allowing the corresponding end to swing under force instead of forming a rigid stop.

[0039] like Figure 6 As shown, the adjustment component 52 further includes: a force transmission block 524 and at least two buffers 525; wherein, the force transmission block 524 is fixedly disposed on the vertical plate 5221 and located between the vertical plate 5221 and the rotating block 521; the at least two buffers 525 are disposed at the ends of the horizontal plate 5222.

[0040] Specifically, the force transmission block 524 is disposed between the vertical plate 5221 of the U-shaped slider 522 and the rotating block 521, and is fixed on the vertical plate 5221. When the adjusting screw 523 pushes the U-shaped slider 522 to slide along the support groove, the vertical plate 5221 of the U-shaped slider 522 moves forward synchronously, thereby driving the force transmission block 524 to move forward; after the force transmission block 524 moves forward, it abuts against the rotating block 521 and pushes the rotating block 521 to swing around the pin 5211, thereby converting the linear sliding of the U-shaped slider 522 into the swing input of the end of the corner piece 51.

[0041] Compared to the vertical plate 5221 acting directly on the rotating block 521, the force transmission block 524 makes the force transmission path more concentrated and also ensures that the two adjustment components 52 are structurally consistent. Therefore, the adjustment difference between the short arm 512 side and the long arm 513 side is mainly reflected by the unequal arm relationship, rather than by the structural differences of the adjustment components 52 themselves.

[0042] At least two buffers 525 are disposed at the ends of the cross plate 5222. In a preferred embodiment, the buffers 525 are rubber pads, polyurethane pads, or other elastic elements. When the U-shaped slider 522 approaches the boundary of the support groove, the buffers 525 can make contact first, thereby reducing rigid impact and improving the smoothness of the adjustment process.

[0043] Example 2 like Figure 7 and Figure 8 As shown, this embodiment provides a method for sealing and plugging the expansion joints of a utility tunnel, which is applied to the sealing and plugging mechanism for expansion joints of a utility tunnel described in Embodiment 1.

[0044] The main method of this embodiment includes: First, fix the straight sections of the external waterstop 2 located on both sides of the corner of the expansion joint to the locking assembly 4, and make the straight section area form a boundary state that is stably fitted with the outer mold; Then adjust the pair of adjustment components 52 in the linkage component 5 so that the corner component 51 drives the fitting component 511 to gradually approach the arc plate 31, and further make the arc plate 31 fit and press against the corner area of ​​the expansion joint.

[0045] Therefore, different treatment mechanisms are adopted for the straight sections and corner areas on both sides of the expansion joint corner. The straight sections are stabilized first, and the corner areas are fine-tuned later, thereby improving the adaptability and consistency of the corner sealing.

[0046] S1. Positioning and initial fixing of the external waterstop on the straight sections on both sides of the corner; First, place the external waterstop 2 on the straight sections on both sides of the corner of the expansion joint.

[0047] In this embodiment, the straight sections of the externally attached waterstop 2 on both sides of the corner are respectively positioned at the locations of the corresponding locking components 4. At this time, the bonding component 3 is already located in the corner area, and a structural connection relationship has been formed between the locking components 4 on both sides and the bonding component 3.

[0048] Subsequently, the external waterstop 2 is fixed to the clamping member 41 in the locking assembly 4. Specifically, the locking teeth 411 on the side of the clamping member 41 facing the external waterstop 2 are engaged with the corresponding locking part 21 of the external waterstop 2. After engagement, the clamping member 41 and the external waterstop 2 move synchronously, that is, when the clamping member 41 moves, the external waterstop 2 will move synchronously with the clamping member 41 without relative slippage.

[0049] S2, Locking adjustment for the straight segment area; After the external waterstop 2 is initially fixed, tighten the adjusting bolts 43 set on the folded connecting plate 42.

[0050] When the adjusting bolt 43 is screwed in, it causes the threaded clamping member 41 to move relative to the folded connecting plate 42 toward the outer mold. Since the clamping member 41 and the external waterstop 2 are already interlocked, the movement of the clamping member 41 will synchronously drive the external waterstop 2 toward the outer mold. At the same time, since the other end of the locking assembly 4 is fixedly connected to the bonding assembly 3, the corresponding fixing plate 32 will also move synchronously toward the outer mold during the advancement of the clamping member 41.

[0051] In this embodiment, it is preferable to adjust the adjusting bolts 43 corresponding to the locking components 4 on both sides of the corner gradually, rather than adjusting one side to the position all at once. Specifically, an alternating left and right approach can be adopted, advancing the adjustment step by step, so that the external waterstop 2 of the straight sections on both sides of the corner gradually approaches the outer mold, until the corresponding areas of the straight sections on both sides are in a stable and tight fit with the outer mold.

[0052] S3. The initial corresponding state of the corner area bonding component is established; After the locking and bonding of the mold is completed in the straight section area, the bonding component 3 is located outside the corner area of ​​the expansion joint. At this time, the arc plate 31 is not yet fully pressed into place, but maintains a reserved bonding gap with the corner area of ​​the expansion joint.

[0053] In this embodiment, the arc-shaped plate 31 is a deformable workpiece, with its two ends connected to the corner structures via fixing plates 32. Therefore, in its initial state, the arc-shaped plate 31 is fixed at both ends and suspended in the middle outside the corner area. Simultaneously, the corner component 51 in the linkage assembly 5 is located on the side of the arc-shaped plate 31 facing away from the externally attached waterstop 2, and the fitting component 511 is positioned opposite to the arc-shaped plate 31. The two ends of the corner component 51 are respectively connected to the paired adjustment components 52 via short arms 512 and long arms 513. At this time, both paired adjustment components 52 are in a state of incomplete final adjustment, providing the initial conditions for subsequent gradual fitting adjustment of the corner area.

[0054] S4. The gradual adjustment process of the linkage components; After the straight section is locked and the curved plate 31 is in the bonding state, the adjustment of the pair of adjustment components 52 in the linkage component 5 begins.

[0055] S41. First, adjust the adjustment components that work with the short arm; First, tighten the adjusting screw 523 on the side that mates with the short arm 512. As the adjusting screw 523 is pushed in, it causes the corresponding U-shaped slider 522 to slide along the support groove. After sliding, the U-shaped slider 522 moves the force transmission block 524 fixed to the vertical plate 5221, which in turn pushes the rotating block 521 to oscillate around the pin 5211. Since the rotating block 521 is rotatably mounted in the U-shaped groove at the end of the short arm 512, the pushing action of the force transmission block 524 on the rotating block 521 is converted into motion input at the end of the short arm 512, thus causing the entire corner piece 51 to initially rotate.

[0056] S42, Adjustment assembly that works in conjunction with the long arm; After the initial approach is completed on the side of the short arm 512, the adjusting screw 523 on the side that mates with the long arm 513 is tightened. At this time, the corresponding U-shaped slider 522 slides along the extension direction of the long arm 513, and the motion input is transmitted to the end of the long arm 513 through the force transmission block 524 and the rotating block 521, so that the corner piece 51 continues to rotate. Because the long arm 513 is relatively long, under the adjustment action on this side, the approach path between the bonding piece 511 and the arc plate 31 is more gentle and stable, which is conducive to the arc plate 31 gradually entering the bonding and compaction state, rather than producing abrupt local pressure.

[0057] S43. Alternately adjust the short arm side and the long arm side until they are properly pressed and adhered. After making one adjustment on the short arm 512 side and the long arm 513 side respectively, it does not mean that the corner area has been completely fitted and pressed.

[0058] As a preferred embodiment, the adjustment components 52 corresponding to the short arm 512 and the long arm 513 are adjusted alternately and repeatedly according to the fit between the arc plate 31 and the corner area.

[0059] After completing steps S41 and S42, the short arm 512 side is adjusted again to further compensate for the closer proximity of the bonding component 511; then the long arm 513 side is adjusted to further bond the arc plate 31 inward at the corners and transition areas on both sides. Through this alternating adjustment, the arc plate 31 is not pressed into the final shape all at once, but gradually forms a continuous bonding state in the corner area.

[0060] S5. Form an integrated blocking state for straight sections and corner areas; After step S4 is completed, the straight sections on both sides of the corner of the expansion joint are held in place by the locking assembly 4 to keep the external waterstop 2 stably attached to the outer mold, while the corner area is formed by the arc plate 31 to form a tight and pressed state.

[0061] At this point, the entire outer area of ​​the expansion joint forms a water-stopping and sealing state composed of the locking and sealing of the straight section and the flexible corner fitting of the corner area.

[0062] In this embodiment, the straight section area is mainly sealed by the externally attached waterstop 2, while the corner area is sealed by the deformable arc plate 31. By dividing and connecting the two, this embodiment avoids the problems caused by the direct corner bonding of the externally attached waterstop 2, and also avoids the problem that ordinary rigid corner plates are difficult to continuously adapt to corner areas.

[0063] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A water-stopping and sealing mechanism for expansion joints in integrated utility tunnels, comprising a water-stopping frame (1) and an externally attached water-stopping strip (2), characterized in that, include: The bonding component (3) is disposed at the corner of the waterstop frame (1), and the bonding component (3) includes an arc plate (31). At least one pair of locking components (4) are disposed on the waterstop frame (1), with one end fixedly connected to the external waterstop strip (2) and the other end fixedly connected to the bonding component (3); and The linkage component (5) is provided on the side of the bonding component (3) away from the external waterstop (2) via a support frame (6). The linkage component (5) includes a corner piece (51) and a pair of adjustment components (52). The corner component (51) includes a fitting component (511) and a short arm (512) and a long arm (513) fixedly connected to its two ends. The adjustment component (52) cooperates with the short arm (512) and the long arm (513) respectively to drive the fitting component (511) to abut against the arc plate (31).

2. The integrated utility tunnel expansion joint sealing mechanism according to claim 1, characterized in that, The bonding component (3) also includes two fixing plates (32) that are fixedly connected to both ends of the arc plate (31); The arc-shaped plate (31) is a deformable workpiece, and the two fixed plates (32) are arranged at an angle.

3. The integrated utility tunnel expansion joint sealing mechanism according to claim 1, characterized in that, Each of the locking components (4) includes: The clamping member (41) has a plurality of snap-fit ​​teeth (411) on the side facing the external waterstop, and the snap-fit ​​teeth (411) snap-fit ​​with the snap-fit ​​part (21) corresponding to the external waterstop. A folded connecting plate (42) includes a U-shaped member (421) and extension plates (422) disposed at both ends of the U-shaped member (421); the U-shaped member (421) is snapped onto a crossbar (11) on the waterstop frame (1); and At least two adjusting bolts (43) are threaded through the extension plate (422) and connected to the clamping member (41).

4. The integrated utility tunnel expansion joint sealing mechanism according to claim 1, characterized in that, The linkage component (5) also includes a grooved support plate (53), which is fixedly connected to the support frame (6); the grooved support plate (53) includes a first base plate (531) and a second base plate (532) extending and connected along both sides of the corner, a lateral limiting plate (533) disposed on the outer edge of the first base plate (531) and the second base plate (532), and a baffle (534) disposed at the end of the first base plate (531) and the second base plate (532); The first base plate (531), the second base plate (532), the lateral limiting plate (533), and the baffle (534) together form an upward-opening support groove.

5. The integrated utility tunnel expansion joint sealing mechanism according to claim 4, characterized in that, Each of the aforementioned adjustment components (52) includes: A rotating block (521) is rotatably disposed in a U-shaped groove opened at the end of the short arm (512) or the long arm (513) via a pin (5211); A U-shaped slider (522) is slidably disposed within the support groove along the extension direction of the short arm (512) or the long arm (513); and An adjusting screw (523) passes through the baffle (534) and abuts against the vertical plate (5221) of the U-shaped slider (522); The U-shaped slider (522) includes a vertical plate (5221) and horizontal plates (5222) disposed at both ends of the vertical plate (5221).

6. The integrated utility tunnel expansion joint sealing mechanism according to claim 5, characterized in that, The adjustment component (52) further includes: A force transmission block (524) is fixedly mounted on the vertical plate (5221) and located between the vertical plate (5221) and the rotating block (521); and At least two buffers (525) are provided at the ends of the cross plate (5222).

7. A method for sealing and plugging expansion joints in integrated utility tunnels, characterized in that, The water-stopping and sealing mechanism for expansion joints in integrated utility tunnels as described in any one of claims 1 to 6 includes the following steps: The external waterstop (2) is placed on the straight section on both sides of the corner of the expansion joint and fixedly connected to the locking assembly (4); Adjust the locking assembly (4) to drive the external waterstop (2) and the bonding assembly (3) to move toward the outer mold until the external waterstop (2) and the bonding assembly (3) are both attached to the outer mold at the straight sections on both sides of the corner of the expansion joint. After completing the above operations, adjust the pair of adjustment components (52) in the linkage component (5) respectively to drive the corner piece (51) to gradually approach the arc plate (31), thereby making the arc plate (31) fit and press against the corner area of ​​the deformation joint.

8. The method for sealing and plugging expansion joints in integrated utility tunnels according to claim 7, characterized in that, Adjust the paired adjustment components (52) in the linkage component (5) respectively, including: By turning the adjusting screw (523), the corresponding U-shaped slider (522) is pushed to slide along the support groove, and then the force transmission block (524) and the rotating block (521) drive the corner piece (51) to move; First, adjust the adjustment component (52) that cooperates with the short arm (512) until the corner piece (51) is close to the arc plate (31). The adjustment component (52) that cooperates with the long arm (513) is adjusted to bring the corner piece (51) closer to the arc plate (31). Alternately and repeatedly adjust the adjustment components (52) corresponding to the short arm (512) and the long arm (513) until the arc plate (31) is completely pressed against the corner of the outer mold.

Images