Entrance formwork of a sealant and a barrier and formwork system therefor

Abstract

An entrance enclosure comprising a sealant and barrier, characterized by a plate (1) and a frame (2), the plate (1) being provided with a plurality of sets of buckle assemblies (3); the frame (2) being removably attached to the buckle assemblies (3); and an annular plate (5) being provided on a side of the plate (1) remote from the frame (2), and a blocking plate (6) being attached to an end of the annular plate (5) remote from the plate (1).

Description

Technical area

[0001] The present utility model relates to the technical field of pipe jacking and, in particular, to an entry casing for a sealant and a barrier and a casing system therefor. State of the art

[0002] Pipe jacking is a trenchless construction method in which pipelines are laid with little or no excavation. In pipe jacking, the frictional force between the pipeline and the surrounding soil in the working pit is overcome by the thrust generated by the jacking device, the pipeline is pushed into the ground at the intended incline, and the earth is removed. After one section of the pipeline has been fully pushed into the soil layer, the second section of the pipeline is pushed further in. Following this principle, the pipe jacking machine cuts its way through the soil layer from the starting pit until the receiving pit is blocked by the thrust of the pipe jacking machine. The pipeline follows closely behind the pipe jacking machine and is laid between the starting pit and the receiving pit.

[0003] In pipe jacking construction, the pipe jacking machine should install a water barrier gate at the entrance of the launch pit for soil pressure relief and mud-water relief to prevent mud leakage from affecting the water pressure of the cut surface during pipe jacking. In the conventional construction method, an entrance formwork consisting of a gasket and a blocker is formed by small wooden formwork pieces. This method requires multiple reassembly of the wooden formwork, which is not only time-consuming and labor-intensive, but also results in poor formwork reinforcement integrity, a low safety factor, and cumbersome disassembly. Summary of the utility model

[0004] The purpose of the utility model is to provide an entrance formwork for a sealant and barrier and a formwork system therefor to solve the problems of the prior art in which small wooden forms are spliced ​​to the entrance formwork for a sealant and barrier, resulting in problems such as multiple assembly, time and labor consumption, poor integrity of the formwork reinforcement, low safety factor, and inconvenient disassembly.

[0005] In a first aspect, the present utility model provides an entry enclosure for the sealing means and the barrier, comprising a plate and a frame, the plate being provided with a plurality of sets of buckle assemblies; the frame being removably attached to the buckle assemblies; and an annular plate is provided on a side of the plate facing away from the frame and a blocking plate is attached to an end of the annular plate facing away from the plate.

[0006] The entrance formwork described in the present application comprises a slab and a frame, the slab being provided with multiple sets of buckle assemblies, and the frame being removably attached to the buckle assemblies to secure the frame to the slab. The frame serves to increase the strength of the slab, thereby preventing deformation of the slab due to excessive stress and effectively preventing deformation of the entrance formwork during concrete pouring.In addition, one side of the slab away from the frame is provided with an annular plate, and one end of the annular plate away from the slab is fixed with a blocking plate, and the slab, the annular plate and the blocking plate are combined to form a formwork structure at the entrance of the seal and the blocking plate; compared with traditional seals and barriers that are assembled multiple times with the wooden formwork, the slab, the annular plate and the blocking plate are assembled as a whole in advance and installed as a whole when used, which has high safety performance, solves the problem of poor integrity of the traditional wooden formwork, and greatly shortens the installation time of the entrance formwork.Since the entrance formwork is applied as a whole during installation and removal, the efficiency of installation and removal is improved, and labor and mechanical costs are saved. Since the entrance formwork described in this application has an integral structure, it only needs to be removed as a whole during removal, which ensures high removal efficiency and prevents damage to individual components. This facilitates formwork reuse, improves the performance of changing the entrance formwork, and effectively reduces construction costs.

[0007] Preferably, the buckle assemblies are spaced longitudinally on the plate.

[0008] Preferably, each set of buckle assemblies comprises at least two buckles, the buckles being arranged laterally.

[0009] Preferably, the buckle comprises two opposing corrugated plates; a bayonet connection is formed between the two corrugated plates; and the frame is attached in the bayonet connection.

[0010] Preferably, the frame comprises a longitudinal bar and a cross bar, the longitudinal bar being detachably connected above the cross bar; and the crossbar is partially clamped into the bayonet connection.

[0011] Preferably, the crossbar comprises a cover plate, a base plate and a web plate, wherein two sides of the web plate are respectively connected to the cover plate and the base plate; and the base plate is clamped to the bayonet connection.

[0012] Preferably, the longitudinal bars are connected to the cover plate by means of fastening bolts.

[0013] Preferably, it further comprises a reinforcement provided between the annular plate and the blocking plate.

[0014] Preferably, the plate is provided with a circular hole; and the annular plate is connected to a side wall of the circular hole.

[0015] In a second aspect, the present utility model provides a seal and barrier formwork system comprising a side formwork and the entrance formwork described in the present application; and the side formworks are arranged symmetrically on both sides of the entrance formwork, and two side edges of the slab are attached to the side formwork.

[0016] In the formwork system of the present application, the side forms are provided symmetrically on both sides of the entrance formwork, and two side edges of the slab are fixed to the side forms. The side forms and the entrance formwork form a seal and barrier pattern to facilitate the pouring of the seal and barrier. Furthermore, since the entrance formwork is a one-piece structure, it is easy to assemble and disassemble, which greatly improves the assembly efficiency of the formwork system and also facilitates the disassembly of the formwork system after pouring. At the same time, the strength of the slab is increased by the frame, and the overall strength of the entrance formwork is high, effectively preventing deformation of the entrance formwork during concreting. The overall strength of the formwork system is improved.

[0017] Compared to the prior art, the present utility model offers the following advantages. 1. The entrance formwork described in the present application comprises a slab and a frame, wherein the slab is provided with multiple sets of buckle assemblies, and the frame is removably attached to the buckle assemblies to secure the frame to the slab. The frame serves to reinforce the slab, thereby preventing deformation of the slab due to excessive loading and effectively preventing deformation of the entrance formwork during concreting.In addition, one side of the slab away from the frame is provided with an annular plate, and one end of the annular plate away from the slab is fixed with a blocking plate, and the slab, the annular plate and the blocking plate are combined to form a formwork structure at the entrance of the sealing and blocking slab; compared with the traditional sealant and barrier which is assembled with the wooden formwork multiple times, the slab, the annular plate and the blocking plate are assembled as a whole in advance and installed as a whole when used, which has high safety efficiency, solves the problem of poor integrity of the traditional wooden formwork, and greatly shortens the installation time of the entrance formwork.Since the entrance formwork is treated as a whole during installation and removal, installation and removal efficiency is improved, while saving labor and mechanical costs. Since the entrance formwork described in this application is a one-piece structure, it only needs to be removed as a whole during removal, increasing removal efficiency and protecting the individual components from damage. This facilitates formwork reuse, improves the speed of changing the entrance formwork, and effectively reduces construction costs. 2. In the formwork system of the present application, the side forms are provided symmetrically on both sides of the entrance formwork, and two side edges of the slab are fixed to the side forms. The side forms and the entrance formwork form a model of the sealant and barrier to facilitate the pouring of the sealant and barrier. In addition, since the entrance formwork has a one-piece structure and is easy to assemble and disassemble, the assembly efficiency of the formwork system is greatly improved and the disassembly of the formwork system after pouring is also facilitated. At the same time, the strength of the slab is increased by the frame, and the overall strength of the entrance formwork is high, effectively avoiding deformation of the entrance formwork during concreting. The overall strength of the formwork system is improved. Brief description of the drawings Fig. 1 is a top view of the present application. Fig. 2 is a front view of the present application. Fig. 3 is a schematic view of a plate and buckle assembly of the present application. Fig. 4 is a plan view of a frame of the present application. Fig. 5 is a front view of the frame of the present application. Fig. 6 is a structural schematic view of the buckle. Fig. Figure 7 is a schematic view of the frame in combination with the buckle. Fig. Figure 8 is a schematic view of a formwork system. Reference symbol:

[0018] 1-Plate, 11-Round hole, 2-Frame, 21-Longitudinal bar, 22-Cross bar, 221-Cover plate, 222-Bottom plate, 223-Web plate, 23-Fastening bolt, 3-Buckle assembly, 31-Buckle, 311-Corrugated plate, 4-Reinforcement, 5-Ring plate, 6-Blocking plate, 7-Bayonet device, 8-Side sheathing, 10-Wall, 20-Sealant and barrier, 30-Entrance. Detailed description

[0019] The present utility model will be described in more detail below using specific embodiments. However, the scope of the above-described subject matter of the present utility model is not limited to the following examples, and the present utility model is intended to fall within the scope of the present utility model.

[0020] In the description of the specific embodiments of the present utility model, the terms "top," "bottom," "left," "right," "center," "inside," "outside," and the like, when used, refer to any orientation or positional relationship unless otherwise specified, and are to be understood as expressions based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product / device / equipment of the present utility model is conventionally used. These terms for orientation or positional relationship are merely intended to facilitate the description of aspects of the present utility model or to simplify the description of specific embodiments for those skilled in the art to quickly understand the aspects.They do not imply that a particular device / part / element must have a particular orientation or be constructed and operated in a particular positional relationship and are therefore not to be interpreted as a limitation of the present utility model.

[0021] Furthermore, the presence of the terms "horizontal," "vertical," "overhanging," "parallel," and the like does not imply that the respective device / component / element must be absolutely horizontal or vertical, or overhanging, or parallel, but that they may be slightly inclined or offset. Where "horizontal" simply means that the direction is more horizontal than "vertical," this does not mean that the structure must be completely horizontal, but that it may be slightly inclined. Alternatively, it can simply be assumed that the respective means / parts / elements arranged in a "horizontal," "vertical," "overhanging," "parallel" direction, etc., may be arranged with a deviation of ± 10%, preferably ± 8%, preferably ± 6%, preferably ± 5%, preferably ± 4% relative to the respective direction.As long as the corresponding device / part / element is within the error / deviation range, its function can continue to be fulfilled in the solution of the present utility model.

[0022] Furthermore, the terms “first,” “second,” “third,” and the like in such expressions are intended solely to distinguish between descriptions of the same or similar elements and are not intended to emphasize or imply a relative importance of any element.

[0023] Furthermore, in the description of the embodiments of the present utility model, "some," "a plurality," and "plural" mean at least two. It may be 2, 3, 4, 5, 6, 7, 8, 9, etc., and it may be more than 9.

[0024] Furthermore, in the description of the technical solution of the present utility model, unless expressly stated / restricted / limited otherwise, the terms "providing," "fastening," "connecting," "connected," "provided with," "presenting," and "arranging" are to be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection, and it may be a connecting means commonly used in technology, such as welding, riveting, bolts, screws, etc. The connection may be a mechanical connection, an electrical connection, or a communication connection. They may be connected directly or indirectly via an intermediate medium, and there may be communication between the two elements. Embodiment 1

[0025] As in the Fig. 1 and Fig. 2, the present application provides an entry enclosure comprising a sealant and a barrier, comprising a panel 1 and a frame 2, wherein the panel 1 is provided with a plurality of sets of buckle assemblies 3; the frame 2 is removably attached to the buckle assemblies 3; and an annular plate 5 is provided on a side of the plate 1 remote from the frame 2, and a blocking plate 6 is attached to an end of the annular plate 5 remote from the plate 1.

[0026] The frame 2 serves to increase the strength of the slab 1, thereby preventing deformation of the slab due to excessive load and effectively preventing deformation of the entrance formwork during concrete pouring. Furthermore, one side of the slab 1 remote from the frame 2 is provided with an annular plate 5, and one end of the annular plate 5 remote from the slab 1 is provided with a blocking plate 6. The slab 1, the annular plate 5, and the blocking plate 6 are connected to each other to form a formwork structure at the entrance of the sealing and blocking slab.Compared with traditional sealants and barriers that are assembled multiple times with wooden formwork, the plate 1, the annular plate 5, and the blocking plate 6 are assembled as a whole in advance and installed as a whole during use, which provides high safety, solves the problem of poor strength of traditional wooden formwork, and greatly shortens the installation time of the entrance formwork. At the same time, since the entrance formwork is handled as a whole during installation and removal, the efficiency of installation and removal is improved and labor and machine costs are saved. Since the entrance formwork described in the present application is a one-piece structure, it only needs to be removed as a whole during removal, which increases the efficiency of removal and protects the individual components from damage.This is convenient for formwork reuse, improves the performance of changing the entrance formwork, and effectively reduces construction costs.

[0027] In one or more embodiments, as described in the Fig. 1 and Fig. 3, a plurality of sets of buckle assemblies 3 are arranged longitudinally spaced from each other on the plate 1. By providing a plurality of sets of buckle assemblies 3 on the plate 1 to fasten the frame 2 through the plurality of sets of buckle assemblies 3, the frame 2 is more securely fastened to the plate 1.

[0028] In an alternative embodiment, as in Fig. As shown in Figure 3, each set of buckle assemblies 3 includes at least two buckles 31, with the buckles 31 being arranged laterally. Each set of buckle assemblies 3 includes at least two buckles 31, so that a set of buckle assemblies 3 can fasten the frame 2 by means of the at least two buckles 31 to effectively secure the frame 2 and prevent wobbling of the frame 2.

[0029] In an alternative embodiment, as in Fig. 6, the buckle 31 comprises two corrugated plates 311 arranged opposite each other, and a bayonet device 7 is formed between the two corrugated plates 311.

[0030] As in Fig. 7, the frame 2 can be fastened in the bayonet device 7.

[0031] The buckle 31 comprises two opposing corrugated plates 311, both corrugated plates 311 being bent inward so that the area between the two corrugated plates 311 forms a convex, letter-shaped space, namely a bayonet device 7. The frame 2 can be fastened in the bayonet device 7 so that the frame 2 is fastened to the buckle assembly 3 and thus the frame 2 is fastened to the plate 1.

[0032] In an alternative embodiment, as in the Fig. 4 and Fig. 5, the frame 2 comprises a longitudinal bar 21 and a cross bar 22, wherein the longitudinal bar 21 is detachably connected above the cross bar 22.

[0033] As in Fig. 7, the crossbar 22 is partially clamped into the bayonet device 7.

[0034] The frame 2 is composed of a longitudinal bar 21 and a crossbar 22, wherein the longitudinal bar 21 is detachably connected above the crossbar 22 to facilitate the assembly of the frame 2. At the same time, the crossbar 22 is partially clamped in the bayonet device 7 so that the frame 2 can be attached to the bayonet device 7 and thus the frame 2 can be attached to the buckle 31.

[0035] In an alternative embodiment, as in Fig. 7, the cross bar 22 includes a cover plate 221, a bottom plate 222 and a web plate 223, and both sides of the web plate 223 are connected to the cover plate 221 and the bottom plate 222, respectively.

[0036] The base plate 222 is clamped in the bayonet device 7.

[0037] The base plate 222 of the crossbar 22 is clamped in the bayonet device 7 so that the crossbar 22 is fixed to the buckle 31.

[0038] Furthermore, the longitudinal rod 21 is connected to the top of the cross rod 22 by means of fastening bolts 23, so that the longitudinal rod 21 and the cross rod 22 can be installed and removed.

[0039] In an alternative embodiment, a circular opening 11 is provided on the plate 1.

[0040] The annular plate 5 is connected to the side wall of the circular opening 11.

[0041] By providing the plate 1 with a circular opening 11, the weight of the plate 1 is greatly reduced and the installation and removal of the entrance formwork is more convenient. Furthermore, the circular hole 11 is located in the central region of the plate 1. At the same time, the annular plate 5 is connected to the side wall of the circular hole 11, with the annular plate 5 extending to the side facing away from the frame 2.

[0042] In an alternative embodiment, as in Fig. 2, it further comprises a reinforcement 4 arranged between the annular plate 5 and the locking plate 6.

[0043] The connection strength of the ring plate 5 and the locking plate 6 is increased by the reinforcement 4.

[0044] In an alternative embodiment, plate 1 is a steel plate with a thickness of 2 cm or more. Buckle 31 is formed by bending a steel plate. Annular plate 5 is an annular steel plate with a thickness greater than or equal to 1.5 cm. Locking plate 6 is a steel plate. Crossbar 22 and longitudinal bar 21 are H-shaped steel. Reinforcement 4 is I-shaped steel.

[0045] Here, the buckle 31 is welded to the plate 1. The frame 2 is firmly connected to the plate 1 via the buckle 31. A circular hole 11 is provided in the center of the plate 1. The annular plate 5 is welded to a side wall of the circular hole 11, and the annular plate 5 extends to a side facing away from the frame 2. One end of the annular plate 5 remote from the plate 1 is welded to a blocking plate 6, and the blocking plate 6 closes the hole of the annular plate 5. A reinforcement 4 is provided between the annular plate 5 and the blocking plate 6, and both ends of the reinforcement 4 are welded to the annular plate 5 and the blocking plate 6, respectively. Embodiment 2

[0046] Based on embodiment 1, the casing system for a sealant and a barrier described in the present application comprises Fig.8, a side formwork 8 and an entrance formwork described in embodiment 1; and the side formworks 8 are provided symmetrically on both sides of the entrance formwork, and two side edges of the plate 1 are attached to the side formwork 8.

[0047] The side formworks 8 and the entrance formwork form a sealant and barrier model 20 to facilitate the pouring of the sealant and barrier 20. Since the entrance formwork has a one-piece structure, its installation and disassembly are convenient, which greatly improves the installation efficiency of the formwork system and also facilitates the disassembly of the formwork system after pouring. At the same time, the strength of the slab 1 is increased by the frame 2, and the overall strength of the entrance formwork is high, effectively preventing deformation of the entrance formwork during concreting. The overall strength of the formwork system is improved.

[0048] In the present embodiment, when constructing the sealant and barrier 20 at the opening 30 of the wall 10, the side formwork 8 is first constructed, and then the entrance formwork is installed at the opening 30, so that both side edges of the plate 1 of the entrance formwork are fixed to the side formwork 8, and the side formwork 8 and the entrance formwork form a model of the sealant and barrier 20. Concrete is then poured. After the concrete is poured, the side formwork 8 and the entrance formwork are removed, and the sealant and barrier 20 are fabricated at the entrance 30.

[0049] The above description is merely a preferred embodiment of the utility model and is not intended to limit the utility model. All modifications, equivalents, and improvements within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

[0050] The present utility model relates to the technical field of pipe jacking construction, and more particularly, to an entry formwork of a sealant and a barrier and a formwork system therefor. The entry formwork comprises a slab and a frame, the slab being provided with multiple sets of buckle assemblies; the frame being detachably attached to the buckle assemblies; and a side of the slab remote from the frame being provided with an annular plate, and an end of the annular plate remote from the frame being provided with a blocking plate. The frame serves to reinforce the slab, thereby avoiding deformation of the slab due to excessive stress and effectively preventing deformation of the entry formwork device during concrete pouring.Compared with traditional sealants and barriers, which require multiple assembly steps, the plate, ring plate, and blocking plate are assembled in advance and installed as a single unit during use. This provides high safety, solves the problem of poor integrity of traditional wooden formwork, and significantly reduces the installation time of the entrance formwork. Since the entrance formwork is handled as a single unit during assembly and disassembly, the efficiency of assembly and disassembly is improved, and labor and machine costs are saved.

Claims

[1] Entrance formwork made of sealant and barrier, characterized by a plate (1) and a frame (2), wherein the plate (1) is provided with a plurality of sets of buckle assemblies (3); the frame (2) is detachably attached to the buckle assemblies (3); and an annular plate (5) is provided on a side of the plate (1) facing away from the frame (2) and a blocking plate (6) is attached to an end of the annular plate (5) facing away from the plate (1). [2] Entrance formwork according to claim 1, characterized by that several sets of buckle assemblies (3) are spaced apart from one another in the longitudinal direction on the plate (1). [3] Entrance formwork comprising sealing agent and barrier according to claim 2, characterized by that each set of buckle assemblies (3) comprises at least two buckles (31), wherein the buckles (31) are arranged laterally. [4] Entrance formwork comprising sealing agent and barrier according to claim 3, characterized by that the buckle (31) comprises two opposing corrugated plates (311); a bayonet connection (7) is formed between the two corrugated plates (311); and the frame (2) is fastened in the bayonet device (7). [5] Entrance formwork comprising sealing agent and barrier according to claim 4, characterized by that the frame (2) comprises a longitudinal bar (21) and a cross bar (22), wherein the longitudinal bar (21) is detachably connected above the cross bar (22); and the cross bar (22) is partially clamped into the bayonet device (7). [6] Entrance formwork comprising sealing agent and barrier according to claim 5, characterized by that the crossbar (22) comprises a base plate (221), a bottom plate (222) and a web plate (223), wherein two sides of the web plate (223) are each connected to the cover plate (221) and the base plate (222); and the base plate (222) is clamped to the bayonet device (7). [7] Entrance formwork comprising sealing agent and barrier according to claim 6, characterized by that the longitudinal rod (21) is connected to the upper plate (221) by means of fastening bolts (23). [8] Entrance formwork comprising sealant and barrier according to claim 1, characterized by that it further comprises a reinforcement (4) arranged between the annular plate (5) and the blocking plate (6). [9] Entrance casing comprising sealing means and barrier according to one of claims 1 to 7, characterized by that the plate (1) is provided with a circular hole (11); and the annular plate (5) is connected to a side wall of the circular hole (11). [10] Formwork system for sealant and barrier, characterized bythat it comprises a side formwork (8) and the entrance formwork according to one of claims 1 to 9; and the side formworks (8) are provided symmetrically on both sides of the entrance formwork and two side edges of the panel (1) are fixed to the side formwork (8).

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