Template device suitable for TBM tunnel lining construction

Abstract

The utility model discloses a template device suitable for TBM tunnel lining construction, which comprises a support frame and a template assembly, the template assembly comprises a top template, a first upper side template, a second upper side template, a first side template, a second side template and a bottom template, and the bottom template is connected with the support frame through a bottom template telescopic piece. One end of the first side formwork and one end of the second side formwork are hinged to the two ends of the bottom formwork respectively, one end of the first upper side formwork is hinged to the other end of the first side formwork, one end of the second upper side formwork is hinged to the other end of the second side formwork, and side formwork telescopic pieces are arranged between the first side formwork and the supporting frame and between the second side formwork and the supporting frame. Upper edge formwork telescopic pieces are arranged between the first upper edge formwork and the first side formwork and between the second upper edge formwork and the second side formwork, the top formwork is connected with the supporting frame through top formwork telescopic pieces, the other ends of the first upper edge formwork and the second upper edge formwork are provided with upper butt joint faces, and the two ends of the top formwork are provided with lower butt joint faces respectively. The formwork device is simple in structure, formwork erecting and demolding are convenient, and the construction efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction equipment, in particular to a template device suitable for TBM tunnel lining construction. Background Art

[0002] Tunnels are generally constructed using open TBMs, and the secondary lining of the tunnel is constructed after the tunnel excavation is completed. According to the design blueprint, the secondary lining construction requires different lining sections for different surrounding rocks, and different lining sections are connected by gradient transitions. The traditional gradient lining construction adopts loose steel formwork or wooden formwork assembly + support racks, which has problems such as difficult and time-consuming formwork rack erection, difficult formwork assembly, large assembly gaps, and uneven force. During the concrete pouring process, there are safety risks such as rack collapse and formwork explosion. At the same time, the appearance of the concrete after demolding is poor when using loose steel formwork or wooden formwork assembly. It is not easy to meet the requirements of construction specifications, and it is difficult to repair it later. In addition, the construction speed of large-section tunnels using loose steel formwork and wooden formwork + racks is slow, the construction period cannot be controlled, and the overall construction cost is high.

[0003] The existing tunnel secondary lining formwork trolley with application number 201621405930.6 includes a formwork system, a steel frame system, a walking system, and a support system. The formwork system consists of 7 rings of steel formwork, each ring of formwork consists of 15 trolley formworks spliced ​​together, and the circumferential and longitudinal splicing sections are connected by bolts. The trolley is designed with an inner diameter of 4005-4010mm, and a 5-10mm activity space is reserved. All ring steel formworks are designed in the form of wedge plates; each splicing section is divided into a bottom invert formwork, a side formwork, and a top formwork from bottom to top. The formworks of the tunnel secondary lining formwork trolley are split structures, which makes it inconvenient to erect and remove the formwork, and the construction is inconvenient and inefficient. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a template device suitable for TBM tunnel lining construction which has a simple structure, is convenient for erecting and demoulding, and improves construction efficiency and quality.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A formwork device suitable for TBM tunnel lining construction, comprising a support frame and a formwork assembly sleeved outside the support frame, the formwork assembly comprising a top formwork, a first upper side formwork, a second upper side formwork, a first side formwork, a second side formwork and a bottom formwork, the bottom formwork is located below the support frame and is connected to the support frame through a bottom form telescopic member, one end of the first side formwork and the second side formwork are respectively hinged to two ends of the bottom formwork, one end of the first upper side formwork is hinged to the other end of the first side formwork, one end of the second upper side formwork is hinged to the other end of the second side formwork, side form telescopic members are each provided between the first side formwork and the second side formwork and the support frame, upper side form telescopic members are each provided between the first upper side formwork and the first side formwork, and between the second upper side formwork and the second side formwork, the top formwork is located above the support frame and is connected to the support frame through the top form telescopic member, the other ends of the first upper side formwork and the second upper formwork are each provided with an upper butt joint surface, and two ends of the top formwork are respectively provided with lower butt joint surfaces for butting with the corresponding upper butt joint surfaces.

[0007] As a further improvement of the above technical solution:

[0008] The two ends of the bottom mold telescopic member are respectively fixed on the bottom mold plate and the supporting frame.

[0009] There are at least two bottom mold telescopic parts, which are respectively located on two sides of the bottom of the support frame.

[0010] The two ends of the top mold telescopic member are respectively fixed on the top mold plate and the supporting frame.

[0011] There are at least two top mold telescopic parts, which are respectively located on both sides of the top of the support frame.

[0012] The top template, the first upper template, the second upper template, the first side template and the second side template are all arc-shaped.

[0013] The middle part of the bottom template is straight, and the two sides are arc-shaped.

[0014] Support rods are detachably provided between the top template, the first upper template, the second upper template, the first side template, the second side template and the supporting frame.

[0015] The lower docking surface is an inclined surface with the bottom inclined outward, and the upper docking surface is an inclined surface adapted to the lower docking surface.

[0016] The lower docking surface is provided with an alignment rod, and the upper docking surface is provided with an alignment hole for the alignment rod to be inserted.

[0017] Compared with the prior art, the advantages of the utility model are:

[0018] The utility model is suitable for the template device of TBM tunnel lining construction. The template construction process is as follows: the template device moves to the template construction position. First, the bottom template telescopic parts extend to push the bottom template to the template position. Then, each side template telescopic part extends to turn the first side template and the second side template outward around the hinge to the template position. Then, each upper side template telescopic part extends to turn the first upper side template and the second upper template outward around the hinge to the template position. Finally, the top template telescopic part extends to lift the top template to the template position. At this time, the top template, the first upper side template, the first side template, the bottom template, the second side template and the second upper template are connected end to end in sequence to form a ring structure arranged around the inner circumference of the tunnel. Conversely, the demoulding construction can be realized by contracting the top template telescopic parts, the upper side template telescopic parts, the side template telescopic parts and the bottom template telescopic parts forward and backward until they are in the mold-closing state as shown in the figure. This formwork device is suitable for TBM tunnel lining construction. Five templates are hinged in sequence, and one template is lifted and docked to achieve formwork erection and demoulding for tunnel inner wall construction. It has a simple structure, convenient formwork erection and demoulding, and improves construction efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a structural schematic diagram of a first embodiment of a template device suitable for TBM tunnel lining construction.

[0020] Figure 2 The utility model is a schematic structural diagram of a top formwork of a formwork device suitable for TBM tunnel lining construction.

[0021] Figure 3 The utility model is a schematic structural diagram of an upper template of a template device suitable for TBM tunnel lining construction.

[0022] Figure 4 The utility model is a schematic structural diagram of a side formwork of a formwork device suitable for TBM tunnel lining construction.

[0023] Figure 5 The utility model is a schematic structural diagram of a bottom template of a template device suitable for TBM tunnel lining construction.

[0024] Figure 6 The utility model is a structural schematic diagram of the template device suitable for TBM tunnel lining construction in the mold closing state.

[0025] Figure 7 It is a structural schematic diagram of the second embodiment of the template device suitable for TBM tunnel lining construction of the utility model.

[0026] Figure 8 for Figure 7 Schematic diagram of the enlarged structure at A.

[0027] The symbols in the figure represent:

[0028] 1. Support frame; 2. Formwork assembly; 21. Top formwork; 22. First upper side formwork; 23. Second upper side formwork; 24. First side formwork; 25. Second side formwork; 26. Bottom formwork; 3. Bottom formwork telescopic member; 4. Side formwork telescopic member; 5. Upper side formwork telescopic member; 6. Top formwork telescopic member; 7. Upper docking surface; 71. Alignment hole; 8. Lower docking surface; 81. Alignment rod; 9. Additional support rod. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Embodiment 1:

[0034] Figures 1 to 6An embodiment of the formwork device of the utility model suitable for TBM tunnel lining construction is shown. The formwork device of the utility model suitable for TBM tunnel lining construction includes a support frame 1 and a formwork assembly 2 sleeved outside the support frame 1. The formwork assembly 2 includes a top formwork 21, a first upper side formwork 22, a second upper side formwork 23, a first side formwork 24, a second side formwork 25 and a bottom formwork 26. The bottom formwork 26 is located below the support frame 1 and is connected to the support frame 1 through a bottom form telescopic member 3. One end of the first side formwork 24 and the second side formwork 25 are respectively hinged to the two ends of the bottom formwork 26, and one end of the first upper side formwork 22 is hinged to the first side formwork 23. The other end of the template 24 is hinged, one end of the second upper template 23 is hinged to the other end of the second side template 25, a side template telescopic member 4 is provided between the first side template 24, the second side template 25 and the support frame 1, an upper template telescopic member 5 is provided between the first upper template 22 and the first side template 24, and between the second upper template 23 and the second side template 25, the top template 21 is located above the support frame 1 and is connected to the support frame 1 through a top template telescopic member 6, the other ends of the first upper template 22 and the second upper template 23 are provided with an upper docking surface 7, and both ends of the top template 21 are respectively provided with a lower docking surface 8 for docking with the corresponding upper docking surface 7.

[0035] Formwork construction process: the formwork device moves to the formwork construction position, first the bottom form telescopic member 3 is extended to push the bottom formwork 26 to the formwork position, then each side form telescopic member 4 is extended to flip the first side formwork 24 and the second side formwork 25 outward around the hinge to the formwork position, then each upper side form telescopic member 5 is extended to flip the first upper side formwork 22 and the second upper side formwork 23 outward around the hinge to the formwork position, finally the top form telescopic member 6 is extended to lift the top formwork 21 to the formwork position, at this time, the top formwork 21, the first upper side formwork 22, the first side formwork 24, the bottom formwork 26, the second side formwork 25 and the second upper formwork 23 are connected end to end in sequence to form an annular structure arranged around the inner circumference of the tunnel. Conversely, by contracting the top form telescopic member 6, the upper side form telescopic member 5, the side form telescopic member 4 and the bottom form telescopic member 3 forward and backward, the demoulding construction can be realized until they are in the position as shown in the figure. Figure 6 The mold closing state is shown. This formwork device is suitable for TBM tunnel lining construction. Through the five templates being hinged in sequence and one template being lifted and docked, the mold erection and demoulding of the tunnel inner wall construction can be realized. The structure is simple, the mold erection and demoulding are convenient, and the construction efficiency and quality are improved.

[0036] Further, in this embodiment, both ends of the bottom mold telescopic member 3 are respectively fixed on the bottom mold plate 26 and the support frame 1. The bottom mold telescopic member 3 is vertically arranged. Preferably, the bottom mold telescopic member 3 is a member with telescopic function such as a cylinder, an oil cylinder or an electric cylinder.

[0037] Furthermore, in this embodiment, at least two bottom mold telescopic members 3 are provided, respectively located on both sides of the bottom of the support frame 1. The bottom mold plate 26 is suspended on the support frame 1 through at least two bottom mold telescopic members 3, and the lifting and lowering are stable, and the mold erection accuracy is high.

[0038] Further, in this embodiment, both ends of the top mold telescopic member 6 are respectively fixed on the top mold plate 21 and the support frame 1. The top mold telescopic member 6 is vertically arranged. Preferably, the top mold telescopic member 6 is a member with telescopic function such as a cylinder, an oil cylinder or an electric cylinder.

[0039] Furthermore, in this embodiment, at least two top mold telescopic members 6 are provided, respectively located on both sides of the top of the support frame 1. The top mold plate 21 is supported on the support frame 1 by at least two top mold telescopic members 6, and the lifting and lowering are stable, and the mold standing accuracy is high.

[0040] Furthermore, in this embodiment, the top template 21, the first upper template 22, the second upper template 23, the first side template 24 and the second side template 25 are all arc-shaped. The middle part of the bottom template 26 is straight and the two sides are arc-shaped, so as to match the inner wall of the tunnel.

[0041] Furthermore, in this embodiment, a support rod 9 is detachably provided between the top template 21, the first upper template 22, the second upper template 23, the first side template 24, the second side template 25 and the support frame 1. The top template 21, the first upper template 22, the second upper template 23, the first side template 24, and the second side template 25 are supported on the support frame 1 by the support rod 9, thereby improving the stability of the structure in the standing mold state.

[0042] Furthermore, in this embodiment, the lower docking surface 8 is an inclined surface with the bottom inclined outward, and the upper docking surface 7 is an inclined surface adapted to the lower docking surface 8. Relative to the vertical surface, during the docking process, the lower docking surface 8 has an upward push tendency or upward push effect on the upper docking surface 7, which is conducive to making the overall template outward in place and improving the accuracy of the mold erection.

[0043] Preferably, the side mold telescopic member 4 and the upper mold telescopic member 5 are components with telescopic function such as air cylinders, oil cylinders or electric cylinders.

[0044] Preferably, working windows are provided on the first side formwork 24, the second side formwork 25 and the bottom formwork 26 to achieve vibration during concrete pouring.

[0045] Furthermore, the support frame 1 is the main frame of the needle beam trolley, and template assemblies 2 are provided at both ends of the support frame 1.

[0046] Embodiment 2:

[0047] Figure 7 and Figure 8Another embodiment of the formwork device of the utility model applicable to TBM tunnel lining construction is shown. The structure of this embodiment is basically the same as that of the first embodiment, and the only difference is that: the lower docking surface 8 is provided with an alignment rod 81, and the upper docking surface 7 is provided with an alignment hole 71 for the alignment rod 81 to be inserted. During the process of the top template 21 rising to dock the mold, the alignment rod 81 is gradually inserted into the alignment hole 71 until it abuts against the upper side wall of the alignment hole 71, that is, the alignment position is positioned through the cooperation of the alignment hole 71 and the alignment rod 81, and the top template 21 and the upper template have a pushing and positioning force, thereby improving the stability of the docking structure.

[0048] Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the art can use the above disclosed technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A formwork device suitable for TBM tunnel lining construction, comprising a support frame (1) and a formwork assembly (2) sleeved outside the support frame (1), characterized in that: The template assembly (2) comprises a top template (21), a first upper template (22), a second upper template (23), a first side template (24), a second side template (25) and a bottom template (26); the bottom template (26) is located below the support frame (1) and is connected to the support frame (1) via a bottom template telescopic member (3); one end of the first side template (24) and the second side template (25) are respectively hinged to the two ends of the bottom template (26); one end of the first upper template (22) is hinged to the other end of the first side template (24); one end of the second upper template (23) is hinged to the other end of the second side template (25); A side mold telescopic member (4) is provided between the one side mold (24) and the second side mold (25) and the support frame (1); an upper mold telescopic member (5) is provided between the first upper mold (22) and the first side mold (24) and between the second upper mold (23) and the second side mold (25); the top mold (21) is located above the support frame (1) and is connected to the support frame (1) via the top mold telescopic member (6); the other ends of the first upper mold (22) and the second upper mold (23) are provided with upper docking surfaces (7); and the two ends of the top mold (21) are respectively provided with lower docking surfaces (8) for docking with the corresponding upper docking surfaces (7).

2. The formwork device suitable for TBM tunnel lining construction according to claim 1, characterized in that: The two ends of the bottom mold telescopic member (3) are respectively fixed on the bottom mold plate (26) and the support frame (1).

3. The formwork device suitable for TBM tunnel lining construction according to claim 2 is characterized in that: At least two bottom mold telescopic parts (3) are provided, which are respectively located on two sides of the bottom of the support frame (1).

4. The formwork device suitable for TBM tunnel lining construction according to claim 1, characterized in that: The two ends of the top mold telescopic member (6) are respectively fixed on the top mold plate (21) and the support frame (1).

5. The formwork device suitable for TBM tunnel lining construction according to claim 4 is characterized in that: At least two top mold telescopic parts (6) are provided, which are respectively located on two sides of the top of the support frame (1).

6. The formwork device suitable for TBM tunnel lining construction according to claim 1, characterized in that: The top template (21), the first upper template (22), the second upper template (23), the first side template (24) and the second side template (25) are all arc-shaped.

7. The formwork device suitable for TBM tunnel lining construction according to claim 6 is characterized in that: The middle part of the bottom template (26) is straight, and the two sides are arc-shaped.

8. The formwork device suitable for TBM tunnel lining construction according to any one of claims 1 to 7, characterized in that: A support rod (9) is detachably provided between the top template (21), the first upper template (22), the second upper template (23), the first side template (24), the second side template (25) and the support frame (1).

9. The formwork device suitable for TBM tunnel lining construction according to any one of claims 1 to 7, characterized in that: The lower docking surface (8) is an inclined surface with the bottom inclined outwards, and the upper docking surface (7) is an inclined surface adapted to the lower docking surface (8).

10. The formwork device suitable for TBM tunnel lining construction according to claim 9, characterized in that: The lower docking surface (8) is provided with an alignment rod (81), and the upper docking surface (7) is provided with an alignment hole (71) for the alignment rod (81) to be inserted.

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