Rubber V-shaped groove structure between tunnel secondary lining template plates

Abstract

The utility model discloses a rubber V-shaped groove structure between tunnel secondary lining template plates, the rubber V-shaped groove structure is installed at the rear end of a secondary lining template, the rubber V-shaped groove structure comprises a clamping groove arranged on the inner side of the secondary lining template and a rubber body with a regular triangle cross section, one surface of the rubber body is fixed in the clamping groove, and the other surface of the rubber body is fixed in the clamping groove. One corner of the rubber body penetrates through the second lining formwork and extends out of the clamping groove, and a V-shaped structure is formed on the outer side of the second lining formwork. The utility model has the advantages that the die sealing effect is better than that of the plugging of the traditional template, and the slurry leakage phenomenon is not easy to generate; concrete at the construction joint can be extruded, pouring forming is easy to control, and meanwhile the concrete pouring face is smooth and attractive; the secondary lining concrete pouring effect is greatly improved, the defect renovation cost is reduced, the project cost is reduced, and meanwhile potential safety hazards during later train operation are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary lining templates, in particular to a rubber V-shaped groove structure between secondary lining template plates of a tunnel. Background Art

[0002] Secondary lining is cast concrete or reinforced concrete lining constructed inside the primary support during tunnel construction, and together with the primary support, it forms a composite lining. Secondary primary support refers to the inner lining constructed with concrete and other materials after the tunnel has been primary supported, in order to strengthen the support, optimize the route drainage system, beautify the appearance, and facilitate the installation of communication, lighting, monitoring and other facilities to meet the requirements of modern highway tunnel construction.

[0003] Under the existing technology, the template seal at the contact surface of the front and rear plates is not tight, which is prone to leakage, resulting in the phenomenon of coarse aggregate concentration in the concrete, resulting in quality defects and increasing the cost of defect remediation in the later stage. In addition, the concrete at the contact surface of the front and rear plates is not vibrated densely. If the defect is not properly rectified, it will increase the safety risk during train operation. Therefore, a rubber V-groove structure between the tunnel secondary lining template plates that can solve the above problems is needed. Summary of the invention

[0004] The purpose of the utility model is to provide a rubber V-groove structure between the second lining template plates of a tunnel based on the above-mentioned deficiencies of the prior art. The rubber V-groove structure is installed at the rear end of the second lining template, which can seal the newly poured second lining concrete and is not prone to leakage.

[0005] The purpose of this utility model is achieved by the following technical solutions:

[0006] A rubber V-groove structure between the plates of the second lining formwork of a tunnel, characterized in that: the rubber V-groove structure is installed at the rear end of the second lining formwork, the rubber V-groove structure includes a groove arranged on the inner side of the second lining formwork and a rubber body with a cross-section of an equilateral triangle, one side of the rubber body is fixed in the groove, and one corner of the rubber body passes through the second lining formwork and extends outside the groove to form a V-shaped structure on the outer side of the second lining formwork.

[0007] The clamping groove is formed by enclosing the U-shaped plate and the second lining template.

[0008] The rubber body is connected with a flange plate on both sides of one side of the rubber body fixed in the slot.

[0009] Bolt holes are provided on the U-shaped plate, the flange plate and the second lining template, and the rubber body is fixed by bolts passing through the bolt holes on the U-shaped plate, the flange plate and the second lining template in sequence.

[0010] The advantages of the utility model are: the sealing effect is better than that of traditional templates, and leakage is not easy to occur; the concrete at the construction joint can be squeezed, the pouring and molding can be easily controlled, and the concrete pouring surface can be smooth and beautiful; the pouring effect of the secondary lining concrete is greatly improved, the defect remediation cost is reduced, the project cost is reduced, and the safety hazard during the later train operation is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the installation of the rubber V-groove structure of the utility model;

[0012] Figure 2 It is a structural schematic diagram of the rubber V-groove structure of the utility model. DETAILED DESCRIPTION

[0013] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by technicians in the same industry:

[0014] like Figure 1~2 As shown, the marks in the figure represent respectively:

[0015] Rubber V-groove structure 1, secondary lining formwork 2, slot 3, rubber body 4, U-shaped plate 5, flange plate 6, bolt 7, steel V-groove structure 8, secondary lining pouring completion area A, secondary lining to be poured area B, trolley forward direction a.

[0016] Example: Figure 1~2 As shown, this embodiment relates to a rubber V-groove structure between the plates of the secondary lining formwork of a tunnel, the rubber V-groove structure 1 is installed at the rear end of the secondary lining formwork 2 (with the forward direction a of the trolley as the front), that is, the rubber V-groove structure 1 is located between the secondary lining casting completion area A and the secondary lining to be cast area B, the rubber V-groove structure 1 mainly includes a groove 3 arranged on the inner side of the secondary lining formwork 2 and a rubber body 4 with a cross-section of an equilateral triangle, one side of the rubber body 4 is fixed in the groove 3, one corner of the rubber body 4 passes through the secondary lining formwork 2 and extends to the outside of the groove 3 and forms a V-shaped structure on the outside of the secondary lining formwork 2, the V-shaped structure can seal the concrete in the secondary lining to be cast area B, and it is not easy to cause leakage.

[0017] like Figure 1~2As shown, the slot 3 is enclosed by a U-shaped plate 5 and a secondary lining template 2. The U-shaped plate 5 is designed to be larger at the top and smaller at the bottom, which is convenient for placing the rubber body 4. The rubber body 4 is connected to a flange plate 6 on both sides of the side fixed in the slot 3. Bolt holes are provided on the U-shaped plate 5, the flange plate 6 and the secondary lining template 2, wherein the bolt holes on the U-shaped plate 5, the flange plate 6 and the secondary lining template 2 are arranged at intervals, and the number and position of the bolt holes on the U-shaped plate 5, the flange plate 6 and the secondary lining template 2 are respectively corresponding, and the bolts 7 are passed through the bolt holes on the U-shaped plate 5, the flange plate 6 and the secondary lining template 2 in sequence to fix the rubber body 4.

[0018] like Figure 1 As shown, a steel V-shaped groove structure 8 is also installed at the front end of the secondary lining formwork 2. After the concrete is poured in the secondary lining to-be-cast area B, the steel V-shaped groove structure 8 will leave a V-shaped pit on the concrete surface. When the trolley is moved forward and fixed, the rubber V-shaped groove structure 1 fits with the V-shaped pit on the concrete surface, which is convenient for subsequent construction.

[0019] The beneficial technical effects of this embodiment are: the sealing effect is better than that of traditional templates, and leakage is not easy to occur; the concrete at the construction joint can be squeezed, and the pouring and molding can be easily controlled, while the concrete pouring surface is made smooth and beautiful; the pouring effect of the secondary lining concrete is greatly improved, the defect remediation cost is reduced, the project cost is reduced, and the safety hazards during the later train operation are reduced.

[0020] Although the above embodiments have described the concepts and embodiments of the purpose of the utility model in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the utility model without departing from the scope of the claims, so they are not described one by one here.

Claims

1. A rubber V-groove structure between the second lining template plates of a tunnel, characterized by: The rubber V-groove structure is installed at the rear end of the second lining template. The rubber V-groove structure includes a groove arranged on the inner side of the second lining template and a rubber body with a cross-section of an equilateral triangle. One side of the rubber body is fixed in the groove, and one corner of the rubber body passes through the second lining template and extends outside the groove to form a V-shaped structure on the outer side of the second lining template.

2. A rubber V-shaped groove structure between the second lining template panels of a tunnel as claimed in claim 1, characterized in that: The clamping groove is formed by enclosing the U-shaped plate and the second lining template.

3. A rubber V-shaped groove structure between the second lining template panels of a tunnel as claimed in claim 2, characterized in that: The rubber body is connected with a flange plate on both sides of one side of the rubber body fixed in the slot.

4. A rubber V-shaped groove structure between the second lining template panels of a tunnel as claimed in claim 3, characterized in that: Bolt holes are provided on the U-shaped plate, the flange plate and the second lining template, and the rubber body is fixed by bolts passing through the bolt holes on the U-shaped plate, the flange plate and the second lining template in sequence.

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