Device and method for installing water stop belt based on secondary lining trolley

Abstract

The invention provides a water-stop belt mounting device and method based on a secondary lining trolley, relates to a water-stop belt mounting technology, and particularly discloses a trolley structure, a supporting frame is mounted on one side of the trolley structure, a plurality of end formworks are sequentially arranged on the outer side of the supporting frame and hinged to one another, and the other end formworks are hinged to the other side of the supporting frame. The multiple end formworks are sequentially spliced to be in an arc shape, a second mounting groove is formed in one side of each end formwork, and a first mounting groove is formed in the top of each end formwork. The two traction grooves are formed in the extension direction of the end formwork, the two traction grooves are located in the second mounting groove or the first mounting groove correspondingly, traction ropes penetrate through the traction grooves correspondingly, clamping structures detachably connected with the water stop belts are arranged on the traction ropes, and the clamping structures are arranged in the second mounting groove or the first mounting groove; the traction winch is mounted in the trolley structure, and the traction rope is wound on a winch of the traction winch, so that the waterstop can be effectively prevented from being twisted, deviated or wrinkled in the traction process, and the accuracy of the mounting position is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of waterstop installation, and in particular to a waterstop installation device and method based on a secondary lining trolley. Background Art

[0002] During the lining construction of tunnels, underground caverns, and other projects, construction joints are prone to water leakage. To ensure the long-term waterproof performance of the structure, embedded waterstops and back-attached (back-embedded) waterstops are widely used to seal construction joints.

[0003] Due to the heavy weight and high frictional resistance of waterstops (especially wide rubber strips), multiple workers are required to coordinate and drag them into place. The narrow working space (such as in tunnel vaults) makes it difficult for workers to exert force, resulting in extremely high labor intensity. Manual traction is difficult to control speed and direction, and can easily cause the waterstop to twist, shift, or wrinkle, resulting in positioning errors. Even slight deviations can create leakage paths, weakening the waterproofing effect.

[0004] Furthermore, the tunnel cross-section presents a complex spatial curve, requiring the waterstop to be laid strictly along the designed contour. Existing methods rely on manual measurement, marking, or simple template-assisted positioning, making it difficult to establish a continuous reference surface that fully conforms to the tunnel curvature. Especially in areas with variable cross-sections, the waterstop is prone to hanging or unevenly compressed, affecting the compactness of the subsequent concrete pour.

[0005] Waterstops are typically temporarily fixed, often using wire ties or adhesive tape, and are prone to loosening and shifting under the impact of concrete pouring. When the formwork (end forms) on either side of the embedded waterstop are closed, traditional rigid formwork has difficulty adaptively adjusting the gap. This often leads to formwork leakage due to loose clamping, resulting in honeycombed surfaces and even through-holes, creating weak points in waterproofing. Summary of the Invention

[0006] The purpose of the present invention is to provide a waterstop installation device based on a secondary lining trolley, which can solve the problems raised by the above-mentioned background technology in view of the shortcomings of the existing technology.

[0007] The technical solution of the present invention is achieved as follows: The present invention provides a waterstop installation device based on a second lining trolley, comprising a trolley structure, a support frame being installed on one side of the trolley structure, a plurality of end head templates being sequentially arranged on the outer side of the support frame, the plurality of end head templates being hinged to each other, and the plurality of end head templates being sequentially spliced ​​into an arc shape, a second installation groove being provided on the side of the end head template facing away from the trolley structure, and a first installation groove being provided on the top of the end head template; the device also comprises two traction grooves arranged along the extension direction of the end head template, the two traction grooves being respectively located in the second installation groove or the first installation groove, a traction rope being passed through each traction groove, a clamping structure being provided on the traction rope that is detachably connected to the waterstop, the clamping structure being slidably arranged in the second installation groove or the first installation groove, a traction winch being installed in the trolley structure, and the traction rope being wound around the winch of the traction winch.

[0008] In some technical solutions of the present invention, the clamping structure includes two clamping plates arranged in pairs and a positioning structure. The two clamping plates are located at one end of the same side and are staggered and rotatably connected. A section where the two clamping plates are staggered is provided with a limiting groove, and the positioning structure is passed through the limiting groove. The traction rope is connected to any one of the positioning structures.

[0009] In some technical solutions of the present invention, the positioning structure includes a screw rod, which passes through two limiting grooves and then extends outward. Both ends of the screw rod are provided with nuts threadedly connected thereto.

[0010] In some technical solutions of the present invention, a connection hole is provided on the side of the end template facing away from the tunnel excavation section, and a bolt structure connected to the end rib of the trolley is provided in the connection hole.

[0011] In some technical solutions of the present invention, a secondary lining template is installed on the top of the trolley end rib, and a trolley reinforcement rib is installed between the secondary lining template and the trolley end rib.

[0012] In some technical solutions of the present invention, the end mold includes an inner end mold and an outer end mold. The inner end mold is arranged on the side of the outer end mold away from the tunnel excavation section. The inner end mold and the outer end mold are detachably connected. The second installation groove is located between the inner end mold and the outer end mold. The second installation groove is located on the outer arc surface of the outer end mold.

[0013] In some technical solutions of the present invention, a slider structure connected to the traction rope is installed in the traction groove, and the slider structure is connected to the positioning structure.

[0014] In some technical solutions of the present invention, a vertical cylinder connected to the end template is provided on the top of the trolley structure, and several horizontal cylinders corresponding to the end templates are provided around the outer wall of the trolley structure, and the output ends of the horizontal cylinders are connected to their corresponding end templates.

[0015] In some technical solutions of the present invention, tooth blocks are provided on the mutually parallel side walls of the two clamping plates.

[0016] A construction method based on a secondary lining trolley waterstop installation device, assembling several end templates with a trolley structure; Insert the clamping structure into the first mounting groove or the second mounting groove on the end template; Install the embedded waterstop to be installed in the second installation groove or the back-embedded waterstop in the first installation groove; First, the traction winch is started, and the clamping structure clamps the embedded waterstop or the back-embedded waterstop under the traction of the traction rope; the traction rope maintains a certain pre-tightening force; The traction winch is started for the second time to wind up the traction rope on the winch at a constant speed. The clamping structure drives the embedded waterstop or the back embedded waterstop connected thereto to move along the predetermined path formed by the second installation groove or the first installation groove and the traction groove. After the traction of the buried waterstop or the back buried waterstop is completed; Tighten the long screw used to connect the inner end mold and the outer end mold to clamp the inner end mold and the outer end mold to the embedded waterstop; The vertical cylinder on the top of the trolley structure and the horizontal cylinder on the outer wall are then used to fine-tune the overall height and radial position of the end template; ensuring that the reference surface formed by the end template matches the tunnel excavation section or the designed position of the secondary lining template, and the embedded waterstop is fixed; Then the concrete is poured.

[0017] Compared with the prior art, the present invention has at least the following advantages or beneficial effects: the overall shape formed by assembling multiple end templates is a precise arc, and its curvature matches the curvature of the tunnel design section; this provides a stable and precise reference surface for the embedded waterstop and back-buried waterstop installed thereon in the narrow tunnel space; the support frame cooperates with the sliding groove / sliding structure to allow the overall end template to be adjusted in the longitudinal direction of the tunnel, thereby improving the installation accuracy for the subsequent installation of the waterstop. The cylinder system (horizontal cylinder, vertical cylinder) provides the ability to fine-tune the end template in the radial and height directions, ensuring that the final reference surface completely fits the tunnel contour; the first and second installation grooves on the end template are combined with the traction groove to provide a precise running track for the clamping structure and the waterstop. The clamping structure slides in the traction groove, which can effectively prevent the waterstop from twisting, deflecting or wrinkling during the traction process, thereby ensuring the accuracy of the installation position. The screw and nut design in the clamping structure allows the operator to adjust the spacing between the two clamping plates with tooth blocks according to the specific thickness of the waterstop, thereby improving the adaptability of this structure. The tooth blocks are pressed into the surface of the waterstop to produce a reliable mechanical bite, preventing disengagement during traction. The clamping plate adopts a folding plate hinge design, which enables it to bend smoothly in the arc-shaped installation groove of the end template, better transmit traction and protect the waterstop. For the embedded waterstop, the design of the inner and outer end templates and their mutual clamping action achieved by the long screw can also adjust the installation spacing of the embedded waterstop. It can not only firmly fix the waterstop, but also effectively tighten the gap between the inner and outer end templates, significantly reducing the risk of leakage and "drip" during concrete pouring, and improving the waterproof quality of the construction joint and the overall lining density. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the combined structure of the end template in the present invention.

[0020] Figure 3 It is a schematic diagram of the front view structure of the end template after assembly in the present invention.

[0021] Figure 4 It is a schematic diagram of the combined structure of the outer end mold and the inner end mold in the present invention.

[0022] Figure 5 It is a schematic diagram of the front view structure of the outer end mold and the inner end mold in the present invention.

[0023] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of AA.

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure after the end template and the inner end template in the present invention are combined.

[0025] Figure numerals: 1. Trolley structure; 2. Support frame; 3. Vertical cylinder; 101. Trolley end rib; 4. Second lining formwork; 5. End formwork; 501. Outer end formwork; 502. Inner end formwork; 503. Long screw; 6. Horizontal cylinder; 7. Bolt structure; 8. Back-buried waterstop; 9. Middle-buried waterstop; 10. Traction rope; 11. Traction groove; 12. Second mounting groove; 13. Slider structure; 14. Limiting groove; 15. Clamping plate; 16. Positioning structure; 17. Traction winch. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0028] Example The present invention provides a water stop installation device based on a secondary lining trolley, such as Figure 1-Figure 7 As shown, it includes a trolley structure 1, a support frame 2 is installed on one side of the trolley structure 1, and several end formworks 5 are arranged in sequence on the outer side of the support frame 2. After the several end formworks 5 are spliced ​​in sequence, they are in an arc shape. The arc-shaped end formwork 5 matches the curvature of the tunnel section and provides a reference surface for installing the waterstop. A second installation groove 12 for installing the embedded waterstop 9 is provided on the side of the end formwork 5 away from the trolley structure 1, and a first installation groove for installing the back-buried waterstop 8 is provided on the top of the end formwork 5. The second installation groove 12 and the first installation groove provide a fixed area and a walking track for the embedded waterstop 9 and the back-buried waterstop 8. A traction structure for pulling the waterstop is provided in the end formwork 5. The traction structure provides mechanical power to replace manual dragging of the waterstop.

[0029] When installing the above structure, the support frame 2 needs to be installed on one side of the second lining trolley, and multiple end templates 5 are spliced ​​into an arc-shaped structure in sequence. The waterstop is placed in the second installation groove 12 and the first installation groove on the back of the end template 5. Then the traction structure pulls the waterstop along the first installation groove track of the end template 5 to the preset position.

[0030] Preferably, a transverse bracket is installed on the front side of the trolley structure 1, and a sliding groove is provided on the transverse bracket. A sliding structure connected to the support frame 2 is installed in the sliding groove, so that the end template 5 can be displaced along the excavation direction of the tunnel, its installation position can be adjusted, and it can serve as a rigid fixation support after the end template adjustment is completed.

[0031] In some technical solutions of the present invention, the traction structure includes a traction groove 11 arranged along the extension direction of the end template 5. The cross-section of the traction groove 11 is an inverted T-shape. The traction groove 11 is located in the second installation groove 12 or the first installation groove. The traction rope 10 is passed through the traction groove 11, and the traction rope 10 is provided with a clamping structure that is detachably connected to the waterstop. The clamping area within the clamping structure forms a detachable connection point, converting the linear traction force of the traction rope 10 into the curved motion of the waterstop. The traction groove 11 cooperates with the guidance of the clamping structure to ensure that the waterstop is not deviated, thereby improving installation efficiency.

[0032] The clamping structure includes two clamping plates 15 arranged in pairs and a positioning structure 16. The two clamping plates 15 are staggered at one end on the same side and then rotatably connected. A limiting groove 14 is provided at a section where the two clamping plates 15 are staggered. The positioning structure 16 is passed through the limiting groove 14, and the traction rope 10 is connected to any one of the positioning structures 16.

[0033] In some embodiments of the present invention, the positioning structure 16 includes a screw rod that extends outward through the two retaining grooves 14. Nuts are threadedly connected to the screw rod at each end. The relative position of the nuts on the screw rod can be adjusted, thereby varying the relative spacing between the two clamping plates 15 to accommodate waterstops of varying sizes. A traction rope 10 is connected to the ends of the screw rod, and a portion of the screw rod is embedded in the traction groove 11.

[0034] Preferably, the clamping plate 15 is formed by hingedly connecting multiple folding plates to each other, so that the clamping plate 15 has a certain movable space in the arc-shaped second installation groove 12 or the first installation groove, that is, it bends a certain arc with the water stop belt, so as to better pull the water stop belt from one end of the above-mentioned end template 5 to the other end, thereby improving the traction efficiency.

[0035] In some technical solutions of the present invention, tooth blocks are provided on the opposite side walls of the two clamping plates 15 .

[0036] When the traction rope 10 pulls the positioning structure 16 to move in the limiting groove 14, the two clamping plates 15 are squeezed by the positioning structure 16 and move closer to each other, and cooperate with the tooth block to generate local deformation bite force on the water stop belt. The screw provides adjustable locking force. The positioning structure 16 presses the free ends of the two clamping plates 15 with tooth blocks, and the tooth blocks are pressed into the surface of the water stop belt to form a mechanical bite. The anti-slip design of the tooth block ensures that it will not be disengaged during traction. The screw realizes infinite adjustment of the clamping force to adapt to water stop belts of different thicknesses.

[0037] In some technical solutions of the present invention, a connection hole is formed on the side of the end template 5 facing away from the tunnel excavation section. A bolt structure 7 is provided within the connection hole, which connects to the trolley end rib 101. The bolt structure 7 passes through the connection hole to secure the end template 5 to the trolley end rib 101. The bolt generates an axial preload to achieve a rigid connection, and the detachable connection facilitates maintenance.

[0038] In addition, a guide groove is opened on the side wall of the trolley end rib 101 along the radial direction of the circle in which it is located. The bolt structure 7 is installed in the guide groove to facilitate the subsequent position adjustment of the inner end mold 502 connected thereto to adapt it to the inner arc surface of the tunnel.

[0039] In some technical solutions of the present invention, a secondary lining formwork 4 is mounted on top of the trolley end rib 101, and a trolley reinforcement rib is installed between the secondary lining formwork 4 and the trolley end rib 101. The secondary lining formwork 4 forms a triangular support with the trolley reinforcement rib and the trolley end rib 101. The reinforcement rib disperses the lateral pressure during concrete pouring, reduces the risk of pouring deformation, and improves the support stability of the end formwork 5.

[0040] In some technical solutions of the present invention, the end formwork 5 includes an inner end formwork 502 and an outer end formwork 501. The inner end formwork 502 is arranged on the side of the outer end formwork 501 away from the tunnel excavation section, and the inner end formwork 502 and the outer end formwork 501 are detachably connected. The outer end formwork 501 directly contacts the concrete, and the inner end formwork 502 provides backing support for the outer end formwork 501. Adjacent inner end formworks 502 and outer end formworks 501 are detachably connected, and the second mounting groove 12 is located between the inner end formwork 502 and the outer end formwork 501. The long screw 503 forces the inner end formwork 502 and the outer end formwork 501 to approach each other, thereby adjusting the spacing of the second mounting groove 12 between the inner end formwork 502 and the outer end formwork 501. After the waterstop is installed in place, the inner end formwork 502 and the outer end formwork 501 can clamp the waterstop, blocking the gap between the inner end formwork 502 and the outer end formwork 501, thereby improving the quality of grouting.

[0041] In some technical solutions of the present invention, a slider structure 13 connected to the traction rope 10 is installed in the traction groove 11. The slider structure 13 is connected to the positioning structure 16. The slider structure 13 is composed of multiple roller structures hinged in sequence. The slider structure 13 slides in the traction groove 11. The traction rope 10 drives the clamping plate 15 through the slider. Sliding friction replaces direct drag friction, reducing motion resistance.

[0042] In some technical solutions of the present invention, a vertical cylinder 3 connected to the end template 5 is installed on the top of the trolley structure 1. Several transverse cylinders 6 are arranged around the outer wall of the trolley structure 1, corresponding one-to-one with the end templates 5. The output ends of the transverse cylinders 6 are connected to their corresponding end templates 5. The transverse cylinders 6 adjust the radial position of the end templates 5, and the vertical cylinders 3 control the overall height, so that the above structure conforms to the tunnel excavation cross-section and avoids leakage.

[0043] In some technical solutions of the present invention, a traction winch 17 is installed in the trolley structure 1, and the traction rope 10 is wound on the capstan of the traction winch 17. The traction winch 17 retracts and releases the traction rope 10, and the movement speed is controlled by the winch, which facilitates the installation of the waterstop at a predetermined position and improves the installation efficiency of the waterstop in a narrow space.

[0044] Waterstop installation method: Assemble several end templates 5 with the trolley structure 1; Insert the clamping structure into the first mounting groove or the second mounting groove 12 on the end template 5; Install the embedded waterstop to be installed in the second installation groove 12 or the back-embedded waterstop in the first installation groove; First, the traction winch 17 is started, and the clamping structure clamps the embedded waterstop or the back-embedded waterstop 8 under the traction of the traction rope 10; the traction rope 10 maintains a certain pre-tightening force; The traction winch 17 is started for the second time to wind up the traction rope 10 on the winch at a constant speed. The clamping structure drives the embedded waterstop 9 or the back-embedded waterstop 8 connected thereto to move along the predetermined path formed by the second mounting groove 12 or the first mounting groove and the traction groove 11. After the middle buried water stop 9 or the back buried water stop 8 is pulled; Tighten the long screw 503 used to connect the inner end mold 502 and the outer end mold 501 so that the inner end mold 502 and the outer end mold 501 clamp the embedded waterstop 9; Then, the vertical cylinder 3 on the top of the trolley structure 1 and the horizontal cylinder 6 on the outer wall are used to fine-tune the overall height and radial position of the end template 5; ensure that the reference surface formed by the end template 5 is consistent with the tunnel excavation section or the designed position of the secondary lining template 4, and fix the embedded waterstop 8; Then the concrete is poured.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A waterstop installation device based on a secondary lining trolley, characterized in that: The invention comprises a trolley structure (1), wherein a support frame (2) is installed on one side of the trolley structure (1), a plurality of end templates (5) are sequentially provided on the outer side of the support frame (2), the plurality of end templates (5) are hinged to each other, and the plurality of end templates (5) are sequentially spliced ​​to form an arc shape, a second mounting groove (12) is provided on the side of the end template (5) away from the trolley structure (1), and a first mounting groove is provided on the top of the end template (5); and a plurality of end templates (5) are provided along the extending direction of the end template (5). Two traction grooves (11) are respectively located in the second installation groove (12) or the first installation groove, and a traction rope (10) is passed through each of the traction grooves (11). The traction rope (10) is provided with a clamping structure detachably connected to the water stop belt, and the clamping structure is slidably arranged in the second installation groove (12) or the first installation groove. A traction winch (17) is installed in the trolley structure (1), and the traction rope (10) is wound on the winch of the traction winch (17).

2. The waterstop installation device based on the secondary lining trolley according to claim 1 is characterized in that: The clamping structure comprises two clamping plates (15) arranged in pairs and a positioning structure (16). The two clamping plates (15) are staggered at one end on the same side and then rotatably connected. A section of the staggered arrangement of the two clamping plates (15) is provided with a limiting groove (14). The positioning structure (16) is inserted into the limiting groove (14). The traction rope (10) is connected to any one of the positioning structures (16).

3. The waterstop installation device based on the secondary lining trolley according to claim 2 is characterized in that: The positioning structure (16) comprises a screw rod, which extends outward after passing through two limiting grooves (14), and both ends of the screw rod are provided with nuts threadedly connected thereto.

4. The waterstop installation device based on the secondary lining trolley according to claim 1 is characterized in that: A connection hole is provided on the side of the end template (5) facing away from the tunnel excavation section, and a bolt structure (7) connected to the trolley end rib (101) in the trolley structure (1) is provided in the connection hole.

5. The waterstop installation device based on the secondary lining trolley according to claim 4 is characterized in that: A secondary lining template (4) is installed on the top of the trolley end rib (101), and a trolley reinforcement rib is installed between the secondary lining template (4) and the trolley end rib (101).

6. The waterstop installation device based on the secondary lining trolley according to claim 1 is characterized in that: The end mold (5) comprises an inner end mold (502) and an outer end mold (501), wherein the inner end mold (502) is arranged on a side of the outer end mold (501) away from the tunnel excavation section, and the inner end mold (502) and the outer end mold (501) are detachably connected, and the second mounting groove (12) is located between the inner end mold (502) and the outer end mold (501), and the second mounting groove (12) is located on the outer arc surface of the outer end mold (501).

7. A waterstop installation device based on a secondary lining trolley according to claim 2 or 3, characterized in that: A slider structure (13) connected to the traction rope (10) is installed in the traction groove (11), and the slider structure (13) is connected to the positioning structure (16).

8. The waterstop installation device based on the secondary lining trolley according to claim 1 is characterized in that: A vertical oil cylinder (3) connected to the end template (5) is provided on the top of the trolley structure (1), and a plurality of transverse oil cylinders (6) corresponding one to one to the end templates (5) are provided around the outer wall of the trolley structure (1), and the output ends of the transverse oil cylinders (6) are connected to the corresponding end templates (5).

9. The waterstop installation device based on the secondary lining trolley according to claim 2 is characterized in that: Tooth blocks are provided on the mutually parallel side walls of the two clamping plates (15).

10. A construction method based on a secondary lining trolley waterstop installation device, characterized in that: The device for installing a waterstop on a secondary lining trolley according to any one of claims 1 to 9 has the following construction steps: Assembling a plurality of end templates (5) with the trolley structure (1); Inserting the clamping structure into the first mounting groove or the second mounting groove (12) on the end template (5); Install the embedded waterstop to be installed in the second installation groove (12) or install the back-embedded waterstop in the first installation groove; First, the traction winch (17) is started, and the clamping structure clamps the embedded waterstop or the back-embedded waterstop (8) under the traction of the traction rope (10); the traction rope (10) maintains a certain pre-tightening force; The traction winch (17) is started for the second time, the traction rope (10) on the winch is wound at a uniform speed, and the clamping structure drives the embedded water stop (9) or the back embedded water stop (8) connected thereto to move along the predetermined path formed by the second installation groove (12) or the first installation groove and the traction groove (11); After the traction of the buried water stop (9) or the buried water stop (8) is completed; Tighten the long screw (503) for connecting the inner end mold (502) and the outer end mold (501), so that the inner end mold (502) and the outer end mold (501) clamp the embedded water stop (9); Then, the vertical oil cylinder (3) on the top of the trolley structure (1) and the horizontal oil cylinder (6) on the outer wall are used to fine-tune the overall height and radial position of the end template (5); ensure that the reference surface formed by the end template (5) is consistent with the tunnel excavation section or the designed position of the secondary lining template (4), and fix the back-buried water stop (8); Then the concrete is poured.

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