CN212454447U - Two lining vault quick grouting joint devices - Google Patents
Two lining vault quick grouting joint devices Download PDFInfo
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- CN212454447U CN212454447U CN202020367159.8U CN202020367159U CN212454447U CN 212454447 U CN212454447 U CN 212454447U CN 202020367159 U CN202020367159 U CN 202020367159U CN 212454447 U CN212454447 U CN 212454447U
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Abstract
The utility model belongs to the vault concrete pouring belt mold rapid grouting field, in particular to a two-lining vault rapid grouting joint device, a lining concrete pouring template is provided with a mounting hole, a pouring pipe is arranged on the mounting hole, and a connecting flange plate is movably connected with a fixed flange plate and is used for rapidly connecting grouting equipment; the pouring pipe extends into the lining concrete pouring template, and the inner end head of the lining concrete pouring template is provided with a grout overflow groove; a longitudinal grouting pipe is arranged in the lining concrete pouring template; the grouting pipe is connected with the pouring pipe through a straight bolt joint and is connected with the grouting machine; one side of the grouting pipe is provided with a pressure gauge, and the other side of the grouting pipe is provided with a return pipe. The back flow can collect unnecessary thick liquids, not only can improve the utilization ratio of raw materials, can also protect slip casting equipment and template to and confirm through the play thick liquid even condition of back flow whether slip casting is complete, the favourable workman operational environment that improves, the protection staff safety.
Description
Technical Field
The utility model belongs to vault concrete placement takes mould quick grouting field, concretely relates to two lining vaults quick grouting joint devices.
Background
In the construction of tunnel lining (secondary lining), grouting forming is generally adopted, a vault grouting pre-buried RPC pipe (grouting pipe) is arranged on the tunnel lining to serve as an observation port, and the vault grouting pre-buried RPC pipe is also used for measuring the thickness of concrete lining; when the vault concrete is poured, whether the vault is poured or not is determined by observing whether the pre-embedded RPC pipe is subjected to grout bleeding or not, but the pre-embedded RPC pipe (grouting observation port) is easy to block, so that the observation is blocked, whether the vault is poured or not cannot be accurately judged, and excessive grouting is often caused; thus, great burden is caused to grouting equipment, and great potential safety hazard exists.
Disclosure of Invention
In order to solve the problem, the utility model provides a two lining vault quick grouting joint devices can conveniently observe the slip casting condition to and ensure slip casting safety.
The specific technical scheme is as follows: a two-lining vault quick grouting joint device comprises a lining concrete pouring template, a pouring pipe, a fixed flange plate and a grouting pipe, wherein the lining concrete pouring template is provided with a mounting hole (namely a hole for mounting the pouring pipe), the fixed flange plate is fixed around the mounting hole of the lining concrete pouring template through an external two-lining trolley, and the end of the pouring pipe, which extends into the lining concrete pouring template, is provided with a grout overflow groove (the grout overflow groove is a notch formed in the end of the grouting pipe); a longitudinal grouting pipe is arranged in the lining concrete pouring template (whether concrete is poured to the vault or not is determined by observing whether the concrete is weeped or not); the grouting device is characterized by also comprising a connecting flange plate, wherein a pouring pipe penetrates through and is fixedly arranged on the connecting flange plate, the pouring pipe can extend into the mounting hole, and the connecting flange plate is movably connected with the fixed flange plate through bolts and is used for quickly connecting grouting equipment;
the grouting pipe is connected with the pouring pipe through a straight bolt joint, a ball valve is arranged on the straight bolt joint, and the grouting pipe is connected with an external grouting machine;
one side of the grouting pipe is provided with a pressure gauge, the other side of the grouting pipe is provided with a return pipe, and the return pipe is provided with a ball valve and an explosion-proof valve.
Furthermore, the pouring pipe is a high-strength steel fiber cement pipe, the diameter of the pouring pipe is 50mm, and the wall thickness of the pouring pipe is 10 mm.
Furthermore, the upper end of the fixed flange plate is provided with more than 2 columns, holes are formed in the lining concrete pouring template corresponding to the columns of the fixed flange plate, and the columns are embedded into the holes of the lining concrete pouring template, so that the phenomenon that the fixed flange plate deviates due to the fact that grouting pressure is large in the grouting process is prevented.
Has the advantages that: the grouting pipe joint device is improved to be detachable in flange, and the safety valve and the backflow pipe are arranged on the grouting pipe, so that the grouting pipe is more convenient to detach and mount, and the maintainability of the grouting pipe is improved; meanwhile, a safety valve (ball valve) is arranged, so that the protection effect on the template in the grouting process is improved, and the grouting pressure is controllable and the operation is easier in the grouting process by replacing a safety valve diaphragm; the back flow can collect unnecessary thick liquids, not only can improve the utilization ratio of raw materials, can also protect slip casting equipment and template to and confirm through the play thick liquid even condition of back flow whether slip casting is complete, the favourable workman operational environment that improves, the protection staff safety.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is an assembly view of the present invention;
wherein, 1, lining concrete pouring formworks; 2, pouring a tube; 3, fixing a flange plate; 4, connecting a flange plate; 5, grouting pipes; 6, a slurry overflow groove; 7 longitudinal grouting pipes; 8, a ball valve; 9 an explosion-proof valve; 10 void area; 11 straight bolt joints; 12 pressure gauge; 13 a return pipe; 14, a slurry overflow groove; and a column 15.
Detailed Description
As shown in fig. 1-2, a two-lining vault rapid grouting joint device includes a lining concrete pouring template 1, a pouring pipe 2, a fixed flange 3 and a grouting pipe 5, wherein a mounting hole (i.e., a hole for mounting the pouring pipe) is formed in the lining concrete pouring template 1, the fixed flange 3 is fixed around the mounting hole of the lining concrete pouring template 1 by an external two-lining trolley (the external two-lining trolley fixes the fixed flange 3 around the mounting hole of the lining concrete pouring template 1, and can be welded or punched on the side wall of the fixed flange 3, and by means of bolt connection, the prior art), a grout overflow groove 14 is formed at the inner end of the pouring pipe 5 extending into the lining concrete pouring template 1 (the grout overflow groove is a notch formed at the end of the grouting pipe); a longitudinal grouting pipe 7 (whether concrete is poured to the vault is determined by observing whether bleeding occurs or not) is arranged in the lining concrete pouring template 1; the grouting device is characterized by further comprising a connecting flange plate 4, a pouring pipe 5 penetrates through and is fixedly arranged on the connecting flange plate 4, the pouring pipe 5 can extend into the mounting hole, the connecting flange plate 4 is movably connected with the fixed flange plate 3 through bolts (threaded holes are formed in the connecting flange plate 4 and the fixed flange plate 3, and the bolts penetrate through the threaded holes and connect the connecting flange plate 4 with the fixed flange plate 3 through nuts) and are used for being quickly connected with grouting equipment; the upper end of the fixed flange plate 3 is provided with more than 2 cylinders 15, holes are formed in the lining concrete pouring template 1 corresponding to the cylinders 15 of the fixed flange plate 3, the cylinders 15 can be embedded into the holes of the lining concrete pouring template 1, and the phenomenon that the fixed flange plate 3 deviates due to the fact that the grouting pressure is large in the grouting process is prevented.
The grouting pipe 5 is connected with the pouring pipe 5 through a straight bolt joint 11, a ball valve 8 is arranged on the straight bolt joint 11, and the grouting pipe 5 is connected with an external grouting machine;
a pressure gauge 12 is arranged on one side of the grouting pipe 5, a return pipe 13 is arranged on the other side of the grouting pipe 5, and a ball valve 8 and an explosion-proof valve 9 are arranged on the return pipe 13.
Furthermore, the pouring pipe is a high-strength steel fiber cement pipe, the diameter of the pouring pipe is 50mm, and the wall thickness of the pouring pipe is 10 mm.
The operation process is as follows:
1. the novel mould-equipped grouting quick connector is installed in a hole of the top plate (lining concrete pouring formwork) of the existing trolley, and a safety valve diaphragm with proper pressure is placed in a ball valve 8 (safety valve);
2. grouting with a mold, closely paying attention to the pressure value of a pressure gauge and the slurry discharge condition of the return pipe 13 in the grouting process, and finishing grouting when the return pipe 13 uniformly discharges slurry;
3. and after grouting is finished, closing the grout stopping valve, removing the grouting hose, cleaning equipment, and removing the positioning flange and the connecting fittings after the grout is initially set. When the two liners are demoulded, the RPC grouting pipe can be directly knocked off or exposed through the clamping of the template.
The grouting device is optimized on the existing grouting facility of the tunnel vault grouting process with the mold, the existing grouting pipe device is changed into a detachable flange connection, a safety valve and a backflow pipe are arranged on the grouting pipe, and the safety valve is a diaphragm type safety valve. Grouting pressure can be ensured in the grouting process, after grouting is over-pressure, the safety valve diaphragm is broken, and slurry flows back to the stock bin. The protection effect to the template in the slip casting process can be improved in the slip casting process, the operation is easier in the slip casting process, and the backflow pipe can collect redundant slurry, so that the raw material utilization rate can be improved, slip casting equipment can be protected, and the operation environment of workers is facilitated.
Claims (3)
1. A two-lining vault quick grouting joint device comprises a lining concrete pouring template, a pouring pipe, a fixed flange plate and a grouting pipe, wherein the lining concrete pouring template is provided with a mounting hole; a longitudinal grouting pipe is arranged in the lining concrete pouring template; the grouting device is characterized by also comprising a connecting flange plate, wherein a pouring pipe penetrates through and is fixedly arranged on the connecting flange plate, the pouring pipe can extend into the mounting hole, and the connecting flange plate is movably connected with the fixed flange plate through bolts and is used for quickly connecting grouting equipment;
the grouting pipe is connected with the pouring pipe through a straight bolt joint, a ball valve is arranged on the straight bolt joint, and the grouting pipe is connected with an external grouting machine;
one side of the grouting pipe is provided with a pressure gauge, the other side of the grouting pipe is provided with a return pipe, and the return pipe is provided with a ball valve and an explosion-proof valve.
2. A two-lined vault quick grouting joint as claimed in claim 1 wherein said pouring tube is a high strength steel fiber cement tube 50mm in diameter and 10mm in wall thickness.
3. A double-lined vault quick grouting joint apparatus as claimed in claim 1, wherein the fixed flange is provided with more than 2 columns, holes are made in the lining concrete casting forms corresponding to the columns of the fixed flange, and the columns can be inserted into the holes of the lining concrete casting forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020367159.8U CN212454447U (en) | 2020-03-22 | 2020-03-22 | Two lining vault quick grouting joint devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020367159.8U CN212454447U (en) | 2020-03-22 | 2020-03-22 | Two lining vault quick grouting joint devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212454447U true CN212454447U (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020367159.8U Active CN212454447U (en) | 2020-03-22 | 2020-03-22 | Two lining vault quick grouting joint devices |
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| Country | Link |
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| CN (1) | CN212454447U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878730A (en) * | 2021-03-26 | 2021-06-01 | 湖南瑞弗斯科技发展有限公司 | Pouring system for antigravity reinforcement |
| CN113123810A (en) * | 2021-05-12 | 2021-07-16 | 中交路桥建设有限公司 | Construction method for improving grouting effect of arch crown with mold of tunnel |
-
2020
- 2020-03-22 CN CN202020367159.8U patent/CN212454447U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878730A (en) * | 2021-03-26 | 2021-06-01 | 湖南瑞弗斯科技发展有限公司 | Pouring system for antigravity reinforcement |
| CN113123810A (en) * | 2021-05-12 | 2021-07-16 | 中交路桥建设有限公司 | Construction method for improving grouting effect of arch crown with mold of tunnel |
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