Bolting type V-shaped groove template tool

Abstract

The invention discloses a bolting type V-shaped groove template tool which is characterized in that an arc-shaped chamfering panel, an arc-shaped connecting steel bar and an arc-shaped steel plate with a bolt hole are combined in a welding mode to form the bolting type V-shaped groove template tool, one end of the arc-shaped chamfering panel is fixedly welded to the end of the arc-shaped connecting steel bar, and the other end of the arc-shaped chamfering panel is fixedly welded to the other end of the arc-shaped steel plate. According to the bolting type V-shaped groove formwork tool, the bolting type V-shaped groove formwork tool is formed by welding the arc-shaped chamfering panel, the arc-shaped connecting steel bars and the arc-shaped steel plates with the bolt holes, and the bolting type V-shaped groove formwork tool is fixedly connected with the lining trolley end steel plates through the connecting bolts in a bolting mode. In addition, the tool can be formed in a centralized machining mode in a machining factory, only bolt connection and installation are needed on site, assembly and disassembly are convenient, compared with an existing V-shaped groove formwork, the rigidity is higher, deformation is not prone to occurring, and the appearance quality of a chamfer face of a V-shaped construction joint can be better guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, in particular to a bolted V-groove template tooling. Background Art

[0002] The circumferential V-shaped construction joint of the tunnel lining refers to a specific form of construction joint set in the circumferential direction of the tunnel primary support or secondary lining structure to ensure construction quality and safety during the tunnel lining construction process. At present, the lining ring is cut into a V-shaped groove along the circumferential direction, and then concrete is poured into the V-shaped groove to form a V-shaped construction joint. This construction method helps to increase the stability and sealing of the lining ring, while improving the waterproof performance of the joint area and the convenience of construction;

[0003] However, in the construction of the annular V-shaped construction joint of the tunnel lining, the V-groove template is welded to the panel at the end of the trolley with arc-shaped steel bars and triangular steel plates. However, the device is easy to be de-welded and deformed during construction, so that the chamfered surface lines of the cast V-shaped construction joint are not straight, and there are many concrete burrs and concrete patches, which greatly affects the appearance quality of the construction joint, and increases the difficulty and cost of subsequent processing. At the same time, after the arc-shaped steel bars and triangular steel plates are de-welded, due to the limited distance and narrow space between the trolley and the initial support surface, it is difficult to weld, reset and replace them, which seriously affects the appearance quality and work efficiency of the lining. Summary of the invention

[0004] The present invention provides a bolted V-groove formwork tooling, which can effectively solve the problem raised in the above background technology that, during the construction of the annular V-shaped construction joint of the tunnel lining, the V-groove formwork is welded to the panel at the end of the trolley using arc-shaped steel bars and triangular steel plates, but the device is easy to be de-welded and deformed during construction, so that the chamfered surface lines of the cast V-shaped construction joint are not straight, and there are many concrete burrs and concrete patches, which greatly affects the appearance quality of the construction joint and increases the difficulty and cost of subsequent processing. At the same time, after the arc-shaped steel bars and triangular steel plates are de-welded, due to the limited distance and narrow space between the trolley and the initial support surface, it is difficult to repair, reset and replace them, which seriously affects the appearance quality and work efficiency of the lining.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bolted V-groove formwork tooling, comprising an arc-chamfered panel, an arc-shaped connecting steel bar and an arc-shaped steel plate with bolt holes, wherein the arc-chamfered panel, the arc-shaped connecting steel bar and the arc-shaped steel plate with bolt holes are combined by welding to form the bolted V-groove formwork tooling, wherein one end of the arc-chamfered panel is fixedly welded to the end of the arc-shaped connecting steel bar, and the other end thereof is fixedly welded to the top of the arc-shaped steel plate with the bolt hole, and the top of the arc-shaped steel plate with the bolt hole and the arc-chamfered panel and the arc-shaped connecting steel bar together form a right triangle;

[0006] The bottom side of the arc-shaped steel plate with bolt holes is detachably connected to the lining trolley end steel plate, and the lining trolley end steel plate and the arc-shaped steel plate with bolt holes are connected by connecting bolts, and a locking nut is threadedly connected to the outer side of one end of the connecting bolt, and the top side of the lining trolley end steel plate is fixedly connected to the lining trolley panel in the vertical direction, and the lining trolley panel is located at the bottom end of the arc-shaped chamfered panel and the arc-shaped connecting steel bar;

[0007] The inner side of the arc-shaped steel plate with bolt holes is provided with first bolt holes at equal intervals, the inner side of the lining trolley end steel plate is provided with second bolt holes, and the connecting bolts penetrate and connect the inner sides of the first bolt hole and the second bolt hole.

[0008] Preferably, the cross section of the arc chamfered panel is trapezoidal, with a lower base width of 50 mm and an upper base width of 37 mm, and a horizontal projection width of 8 mm on one side of the trapezoidal hypotenuse and 5 mm on the other side.

[0009] Preferably, the arc-chamfered panel is cut into an arc shape with a radius R1 that is consistent with the radius of the outer surface of the lining trolley panel on the side where the horizontal projection of the cross-section bevel is 5 mm wide, and the other side, i.e., the side where the horizontal projection of the bevel is 8 mm wide, is cut with a radius R2=R1+50mm, so that the arc length of the arc-chamfered panel is consistent with the arc length of a single trolley panel of the lining trolley.

[0010] Preferably, the arc-shaped connecting steel bar has a steel bar width of 12 mm, is pre-bent into an arc shape with a radius consistent with the radius of the outer surface of the lining trolley panel, and has an arc length consistent with the arc length of a single trolley panel of the lining trolley.

[0011] Preferably, the cross-section of the arc-shaped steel plate with bolt holes is rectangular and 96 mm wide. One side of the rectangle is cut into an arc shape according to a radius R3 = the radius of the outer surface of the lining trolley panel - 74 mm, and the other side is cut according to a radius R4 = R3 + 96 mm. The overall cut arc length is consistent with the arc length of a single trolley panel of the lining trolley.

[0012] Preferably, the arc-shaped steel plate with bolt holes is evenly processed with bolt holes of 18 mm in diameter at a distance of 24 mm from the radius R3 side, i.e., at an arc position of radius R5=R3+24 mm, with an arc length of 500 mm.

[0013] Preferably, the arc-chamfered panel, arc-shaped connecting steel bar and arc-shaped steel plate with bolt holes are all made of 6 mm steel plate, and the lengths of the arc-chamfered panel, arc-shaped connecting steel bar and arc-shaped steel plate with bolt holes are consistent with the arc length of a single arc-shaped panel of the lining trolley.

[0014] Preferably, the side lengths of the right triangle formed by the arc-chamfered panel, the arc-shaped connecting steel bar and the arc-shaped steel plate with bolt holes are 4 cm and 3 cm respectively, and the length of the hypotenuse is 5 cm.

[0015] Preferably, the connecting bolts are M16 bolts, and the connecting bolts are used in conjunction with locking nuts to lock and connect the arc-shaped steel plate with bolt holes to the end steel plate of the lining trolley.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The bolted V-groove formwork tooling is formed by welding an arc-shaped chamfered panel, an arc-shaped connecting steel bar, and an arc-shaped steel plate with bolt holes. The bolted V-groove formwork tooling is bolted and fixed to the end steel plate of the lining trolley through connecting bolts, without welding, and the tooling can be centrally processed in a processing plant. Only bolt connection and installation are required on site. It is easy to install and disassemble, simple to replace, convenient to maintain, and has significant work efficiency. Compared with the previous V-groove formwork, it has stronger rigidity and is not easy to deform, and can better ensure the appearance quality of the chamfered surface of the V-shaped construction joint. When constructing the annular V-shaped construction joint of the tunnel lining, it effectively ensures the appearance quality of the chamfered surface of the V-shaped construction joint and the maintenance efficiency of the V-groove formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] In the attached picture:

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the bolted V-groove template tooling of the present invention;

[0022] Figure 3 is a front schematic diagram of the arc chamfered panel of the present invention;

[0023] Figure 4 is a schematic cross-sectional view of the arc chamfered panel of the present invention;

[0024] Figure 5 It is a front view schematic diagram of the arc-shaped connecting steel bar of the present invention;

[0025] Figure 6 is a cross-sectional schematic diagram of the arc-shaped connecting steel bar of the present invention;

[0026] Figure 7 It is a front schematic diagram of the arc-shaped steel plate with bolt holes of the present invention;

[0027] Figure 8 is a schematic cross-sectional view of an arc-shaped steel plate with bolt holes according to the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the connecting bolt of the present invention;

[0029] Fig.10 It is a schematic diagram of the installation of the lining trolley panel of the present invention;

[0030] Numbers in the figure: 1. Arc chamfered panel; 2. Arc-shaped connecting steel bar; 3. Arc-shaped steel plate with bolt holes; 4. Connecting bolts; 5. First bolt hole; 6. Lining trolley panel; 7. Lining trolley end steel plate; 8. Second bolt hole; 9. Locking nut. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0032] Example: Figure 1-10As shown, the present invention provides a technical solution, a bolt-connected V-groove formwork tooling, comprising an arc-chamfered panel 1, an arc-shaped connecting steel bar 2 and an arc-shaped steel plate 3 with bolt holes, wherein the arc-chamfered panel 1, the arc-shaped connecting steel bar 2 and the arc-shaped steel plate 3 with bolt holes are all processed from 6mm steel plates, and the lengths of the arc-chamfered panel 1, the arc-shaped connecting steel bar 2 and the arc-shaped steel plate 3 with bolt holes are consistent with the arc length of a single arc-shaped panel of a lining trolley, thereby ensuring that the arc-chamfered panel 1, the arc-shaped connecting steel bar 2 and the arc-shaped steel plate 3 with bolt holes themselves have higher structural strength, so that the bolt-connected V-groove formwork tooling composed is not easy to deform, and the arc The curved chamfered panel 1, the curved connecting steel bar 2 and the curved steel plate 3 with bolt holes are combined by welding to form a bolted V-groove formwork tooling. The cross-section of the curved chamfered panel 1 is trapezoidal, with a lower bottom width of 50mm and an upper bottom width of 37mm. The horizontal projection width of one side of the inclined side of the trapezoid is 8mm, and the horizontal projection width of the other side is 5mm. After the curved chamfered panel 1 is connected, its connecting end face can be tightly fitted in the installation position, thereby ensuring that the bolted V-groove formwork tooling formed subsequently has higher supporting strength. One end of the curved chamfered panel 1 is fixedly welded to the end of the curved connecting steel bar 2, and the other end of the curved chamfered panel 1 is fixedly welded to the end of the curved connecting steel bar 2. The end is fixedly welded to the top of the arc-shaped steel plate 3 with bolt holes. The cross-section of the arc-shaped steel plate 3 with bolt holes is rectangular and 96mm wide. One side of the rectangle is cut into an arc shape according to the radius R3=the radius of the outer surface of the lining trolley panel 6-74mm, and the other side is cut according to the radius R4=R3+96mm. The arc length of the overall cutting is consistent with the arc length of the single trolley panel of the lining trolley, which is convenient for the rapid alignment and installation of the arc-shaped steel plate 3 with bolt holes to ensure its tightness after installation. The arc-shaped steel plate 3 with bolt holes is 24mm away from the radius R3 side, that is, the arc position of the radius R5=R3+24mm The bolt holes with a diameter of 18 mm are evenly processed at a spacing of 500 mm according to the arc length, which is convenient for the connection and fixation of the arc steel plate 3 with bolt holes, and is easy to install accurately. The top of the arc steel plate 3 with bolt holes and the arc chamfered panel 1 and the arc connecting steel bar 2 form a right triangle. The sides of the right triangle formed by the arc chamfered panel 1, the arc connecting steel bar 2 and the arc steel plate 3 with bolt holes are 4 cm and 3 cm respectively, and the hypotenuse is 5 cm, which ensures that the arc chamfered panel 1, the arc connecting steel bar 2 and the arc steel plate 3 with bolt holes have higher stability after actual assembly and connection;

[0033] The bottom side of the arc-shaped steel plate 3 with bolt holes is detachably connected with the lining trolley end steel plate 7, and the lining trolley end steel plate 7 and the arc-shaped steel plate 3 with bolt holes are connected by connecting bolts 4, and the outer side of one end of the connecting bolt 4 is threadedly connected with a locking nut 9, the connecting bolt 4 is an M16 bolt, and the connecting bolt 4 is used in conjunction with the locking nut 9 to lock and connect the arc-shaped steel plate 3 with bolt holes and the lining trolley end steel plate 7, without welding, and the tooling can be centrally processed in a processing plant, and only bolt connection and installation are required on site. The installation and disassembly are convenient, the replacement is simple, the maintenance is convenient, and the work efficiency is remarkable. The top side of the lining trolley end steel plate 7 is fixedly connected with the lining trolley panel 6 in the vertical direction, and the arc-shaped chamfered panel 1 has a horizontal projection width of 5 mm on the cross-sectional bevel, and the radius R1 on the side is consistent with the radius of the outer surface of the lining trolley panel 6. The cutting is in an arc shape, and the other side, i.e., the horizontal projection of the hypotenuse, is cut with a radius of R2=R1+50mm, so that the arc length of the arc chamfered panel 1 is consistent with the arc length of the single trolley panel of the lining trolley, so that the hypotenuse of the arc chamfered panel 1 is tightly fitted with the top surface of the lining trolley panel 6, and it is convenient for the assembly and connection of the lining trolley panel 6. The steel bar width of the arc connecting steel bar 2 is 12mm, and it is pre-bent into an arc shape according to the radius consistent with the radius of the outer surface of the lining trolley panel 6. Its arc length is consistent with the arc length of the single trolley panel of the lining trolley, which is convenient for the connection of the arc connecting steel bar 2, so that the arc connecting steel bar 2 is tightly fitted with the top of the lining trolley panel 6, and at the same time, the stability of the connection between the arc connecting steel bar 2 and the arc chamfered panel 1 and the arc steel plate 3 with bolt holes is ensured, and the lining trolley panel 6 is located at the bottom of the arc chamfered panel 1 and the arc connecting steel bar 2;

[0034] The inner side of the arc-shaped steel plate 3 with bolt holes is provided with first bolt holes 5 at equal intervals, the inner side of the lining trolley end steel plate 7 is provided with second bolt holes 8 , and the connecting bolts 4 penetrate and connect the inner sides of the first bolt holes 5 and the second bolt holes 8 .

[0035] The working principle and use process of the present invention: In the actual application process of the bolted V-groove formwork tooling, firstly, one side of the arc-shaped connecting steel bar 2 is vertically welded to the arc-shaped steel plate 3 with bolt holes at a position 19 mm from the side of the non-bolt hole side of the arc-shaped steel plate 3 with bolt holes, and then the side of the cross-sectional oblique side of the arc-shaped chamfered panel 1 of the V-shaped construction joint with a horizontal projection width of 8 mm is welded to the side of the non-bolt hole side of the arc-shaped steel plate 3 with bolt holes;

[0036] Then, the side of the cross-sectional hypotenuse of the arc-shaped chamfered panel 1 with a horizontal projection width of 5 mm is welded to the arc-shaped connecting steel bar 2, so that the cross-sectional hypotenuses on both sides of the arc-shaped chamfered panel 1 are respectively welded to the arc-shaped connecting steel bar 2 and the arc-shaped steel plate 3 with bolt holes, so that the arc-shaped chamfered panel 1, the arc-shaped connecting steel bar 2 and the arc-shaped steel plate 3 with bolt holes are combined to form a right triangle with right angles of 4 cm and 3 cm respectively and a hypotenuse of 5 cm, forming a bolted V-shaped groove template tooling;

[0037] Finally, the assembled bolted V-groove formwork tooling is closely attached to the sides of the lining trolley panel 6 and the lining trolley end steel plate 7 through the arc-shaped connecting steel bar 2 and the arc-shaped steel plate 3 with bolt holes. Specifically, the 3 cm long right-angle side of the arc-shaped connecting steel bar 2 is attached to the edge of the lining trolley panel 6, and the side of the arc-shaped steel plate 3 with bolt holes and the first bolt hole 5 is attached to the side of the lining trolley end steel plate 7, so that the positions of the first bolt hole 5 and the second bolt hole 8 correspond to each other;

[0038] After the arc-shaped connecting steel bar 2 and the arc-shaped steel plate 3 with bolt holes are respectively connected to the positions of the lining trolley panel 6 and the lining trolley end steel plate 7, the connecting bolt 4 is inserted into the first bolt hole 5 and the second bolt hole 8, and the bolted V-groove formwork tooling is locked and fixed to the lining trolley panel 6 and the lining trolley end steel plate 7 by the connecting bolt 4 and the locking nut 9;

[0039] The above installation and fixing method does not require welding. The components of the bolted V-groove formwork tooling can be centrally processed in a processing plant, and only bolt connection and installation are required at the installation site. It is easy to install and disassemble, simple to replace, convenient to maintain, and has significant work efficiency.

[0040] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bolted V-groove formwork tooling, characterized in that: The invention comprises an arc-chamfered panel (1), an arc-shaped connecting steel bar (2) and an arc-shaped steel plate (3) with bolt holes, wherein the arc-chamfered panel (1), the arc-shaped connecting steel bar (2) and the arc-shaped steel plate (3) with bolt holes are combined by welding to form a bolt-connected V-shaped groove template tooling, wherein one end of the arc-chamfered panel (1) is fixedly welded to the end of the arc-shaped connecting steel bar (2), and the other end thereof is fixedly welded to the top of the arc-shaped steel plate (3) with bolt holes, and the top of the arc-chamfered panel (1) and the arc-shaped connecting steel bar (2) together form a right triangle; The bottom side of the arc-shaped steel plate (3) with bolt holes is detachably connected to a lining trolley end steel plate (7), and the lining trolley end steel plate (7) and the arc-shaped steel plate (3) with bolt holes are connected via a connecting bolt (4), and a locking nut (9) is threadedly connected to the outer side of one end of the connecting bolt (4), and the top side of the lining trolley end steel plate (7) is fixedly connected to a lining trolley panel (6) in a vertical direction, and the lining trolley panel (6) is located at the bottom end of the arc-shaped chamfered panel (1) and the arc-shaped connecting steel bar (2); The inner side of the arc-shaped steel plate (3) with bolt holes is provided with first bolt holes (5) at equal intervals, the inner side of the lining trolley end steel plate (7) is provided with second bolt holes (8), and the connecting bolts (4) penetrate and connect to the inner sides of the first bolt holes (5) and the second bolt holes (8).

2. The bolted V-groove formwork tooling according to claim 1, characterized in that: The cross section of the arc chamfered panel (1) is trapezoidal, with a lower base width of 50 mm and an upper base width of 37 mm. The horizontal projection width of one side of the trapezoidal hypotenuse is 8 mm, and the horizontal projection width of the other side is 5 mm.

3. A bolted V-groove formwork tooling according to claim 2, characterized in that: The arc-shaped chamfered panel (1) is cut into an arc shape at a radius R1 that is consistent with the radius of the outer surface of the lining trolley panel (6) on the side where the horizontal projection width of the cross-section bevel is 5 mm, and the other side, i.e., the side where the horizontal projection width of the bevel is 8 mm, is cut at a radius R2=R1+50 mm, so that the arc length of the arc-shaped chamfered panel (1) is consistent with the arc length of a single trolley panel of the lining trolley.

4. The bolted V-groove formwork tooling according to claim 1, characterized in that: The arc-shaped connecting steel bar (2) has a steel bar width of 12 mm and is pre-bent into an arc shape with a radius consistent with the radius of the outer surface of the lining trolley panel (6), and its arc length is consistent with the arc length of a single trolley panel of the lining trolley.

5. The bolted V-groove formwork tooling according to claim 1, characterized in that: The cross section of the arc-shaped steel plate (3) with bolt holes is rectangular and 96 mm wide. One side of the rectangle is cut into an arc shape according to a radius R3 = the radius of the outer surface of the lining trolley panel (6) - 74 mm, and the other side is cut according to a radius R4 = R3 + 96 mm. The arc length of the overall cut is consistent with the arc length of a single trolley panel of the lining trolley.

6. The bolted V-groove formwork tooling according to claim 5, characterized in that: The arc-shaped steel plate (3) with bolt holes is provided with bolt holes with a diameter of 18 mm at a distance of 24 mm from the radius R3 side, i.e., at an arc position of radius R5=R3+24 mm, and a spacing of 500 mm is uniformly processed.

7. The bolted V-groove formwork tooling according to claim 6, characterized in that: The arc-shaped chamfered panel (1), the arc-shaped connecting steel bar (2) and the arc-shaped steel plate with bolt holes (3) are all made of 6 mm steel plate, and the lengths of the arc-shaped chamfered panel (1), the arc-shaped connecting steel bar (2) and the arc-shaped steel plate with bolt holes (3) are consistent with the arc length of a single arc-shaped panel of the lining trolley.

8. The bolted V-groove formwork tooling according to claim 1, characterized in that: The right-angled triangle formed by the arc-shaped chamfered panel (1), the arc-shaped connecting steel bar (2) and the arc-shaped steel plate with bolt holes (3) has side lengths of 4 cm and 3 cm respectively, and a hypotenuse length of 5 cm.

9. The bolted V-groove formwork tooling according to claim 1, characterized in that: The connecting bolts (4) are M16 bolts, and the connecting bolts (4) are used in conjunction with locking nuts (9) to lock and connect the arc-shaped steel plate (3) with bolt holes and the lining trolley end steel plate (7).

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