CN214424513U - Tunnel secondary lining vault gap grouting backfill device - Google Patents
Tunnel secondary lining vault gap grouting backfill device Download PDFInfo
- Publication number
- CN214424513U CN214424513U CN202120225618.3U CN202120225618U CN214424513U CN 214424513 U CN214424513 U CN 214424513U CN 202120225618 U CN202120225618 U CN 202120225618U CN 214424513 U CN214424513 U CN 214424513U
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- CN
- China
- Prior art keywords
- pipe
- grouting
- lining
- slip casting
- vault
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000007569 slipcasting Methods 0.000 claims abstract description 27
- 238000005086 pumping Methods 0.000 claims description 16
- 239000011440 grout Substances 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000011800 void material Substances 0.000 claims description 3
- 239000003651 drinking water Substances 0.000 claims 4
- 235000020188 drinking water Nutrition 0.000 claims 4
- 238000010276 construction Methods 0.000 abstract description 12
- 239000007788 liquid Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Abstract
The utility model relates to a two lining technical field in tunnel, more specifically relate to a two lining vault space slip casting in tunnel backfill device. Including lining cutting platform truck template, the slip casting pipe, grouting pump and drainage exhaust apparatus, lining cutting platform truck template sets up in this circulation secondary lining below, the slip casting pipe sets up in the space layer, the slip casting pipe is close to upper loop secondary lining one end and is provided with L type return bend A, the other end is provided with L type return bend B, L type return bend A hookup has the slip casting connecting pipe, the slip casting pump is connected with slip casting connecting pipe and L type return bend B through first defeated thick liquid pipe and second defeated thick liquid pipe respectively, drainage exhaust apparatus top is in lining face below just, drainage exhaust apparatus bottom extends to lining cutting platform truck template below. This device can be with the water and the air discharge in the space layer, how to carry out the space slip casting and backfill, has guaranteed slip casting backfill construction quality, has avoided the appearance in interstitial space district. The utility model discloses mainly be applied to two lining vault space slip casting aspects.
Description
Technical Field
The utility model relates to a two lining technical field in tunnel, more specifically relate to a two lining vault space slip casting in tunnel backfill device.
Background
At present, many large and medium-sized cities in China begin to build underground railways in a large quantity, and the development of the construction of the subway in China becomes an unblocked historical trend. The tunnel is used as an important link of subway construction, and the construction quality of the concrete secondary lining of the main structure of the tunnel is very important.
In the prior art, when a tunnel secondary lining is constructed, a secondary lining trolley is generally adopted as an inner mold, and concrete pouring is carried out by adopting a window-by-window layer-by-layer method. However, after the poured concrete is formed, solid settlement and shrinkage can occur, the arch crown of the tunnel is easy to be hollow, the arch crown can crack and collapse at the later stage, and the like, so that the engineering quality of the secondary lining is seriously influenced. Water and air can exist in a void area, and when a gap is backfilled by grouting, if the water and the air are not discharged in time, the grouting and gap filling construction quality can be seriously influenced.
SUMMERY OF THE UTILITY MODEL
For overcoming the not enough of existence among the above-mentioned prior art, the utility model provides a two lining vault space slip casting backfill device in tunnel, the device can carry out even slip casting to the space layer, can be with the water and the air in the space layer clean when the slip casting construction, guaranteed space slip casting backfill efficiency.
In order to solve the technical problem, the utility model discloses the technical scheme who takes does:
the utility model provides a two lining vault gaps slip casting backfill device in tunnel, the device sets up the space layer between first lining and this circulation secondary lining, including lining cutting platform truck template, slip casting pipe, slip casting pump and drainage exhaust apparatus, lining cutting platform truck template sets up in this circulation secondary lining below, the slip casting pipe sets up in the space layer, the slip casting pipe is close to upper loop secondary lining one end and is provided with L type return bend A, and the other end is provided with L type return bend B, L type return bend A hookup has the slip casting connecting pipe, slip casting connecting pipe bottom extends to lining cutting platform truck template below, the slip casting pump is connected with slip casting connecting pipe and L type return bend B through first mud pipe and second mud pipe respectively, drainage exhaust apparatus top is in first lining face below, and drainage exhaust apparatus bottom extends to lining cutting platform truck template below.
The grouting connecting pipe is fixedly connected with the first slurry conveying pipe through a connecting flange.
The drainage and exhaust device comprises a pipe body, an inner lining pipe and a tee joint, wherein the inner lining pipe is arranged inside the pipe body, an exhaust hole is formed in the top of the pipe body, a plurality of drain holes are formed in the side wall of the pipe body, the inner lining pipe is of a cylindrical structure with an upper end and a lower end open, a first valve is arranged at the tail of the pipe body, a water pumping hole is formed in the position, above the first valve, of the pipe body, the tee joint is sleeved on the pipe body, the tee joint corresponds to the water pumping hole, a water pumping pipe is connected to the tee joint, and a second valve is arranged on the water pumping pipe.
The water pumping pipe is connected with a water pump.
The top of the pipe body is provided with a top block.
And the tail part of the lining pipe is provided with a pull ring.
The inner wall of the pipe body is in clearance fit with the outer wall of the lining pipe (14).
And the grouting pipe is provided with a plurality of grouting holes.
The grouting connecting pipe is made of a steel pipe.
Compared with the prior art, the utility model discloses the beneficial effect who has does:
the arrangement of the grouting pipe, the slurry conveying pipe and the grouting pump can perform grouting on the gap area, so that potential safety hazards caused by the gap area are eliminated; the grouting connecting pipe has the characteristics of compression resistance and wear resistance, and can ensure that grouting passing through the lining trolley template and the circulating secondary lining part is smoothly carried out; the pipe body is in sliding fit with the lining pipe, so that drainage and exhaust of a void area can be controlled; the arrangement of the jacking block reserves an exhaust space for the exhaust hole, and the smooth proceeding of exhaust is ensured; the arrangement of the tee joint enables the exhaust and the drainage of the device to be realized through different pipelines respectively, and meanwhile, after the pouring of the device is finished, redundant slurry can be discharged along the lining pipe along the exhaust hole, so that a constructor is reminded of finishing the grouting work; the arrangement of the pull ring makes the sliding lining pipe flexible and convenient. This device can carry out in time slip casting construction to the clearance district, and can carry out the complete exhaust to the water and the air in clearance district, has guaranteed the quality of slip casting construction, has improved work efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a part of the structure of the water discharge and air exhaust device of the present invention;
in the figure: the method comprises the following steps of 1, lining trolley template, 2, upper circulation secondary lining, 3, primary lining, 4, a clearance layer, 5, the circulation secondary lining, 6, grouting pipe, 7, grouting pump, 81, first grout conveying pipe, 82, second grout conveying pipe, 9, L-shaped bent pipe A, 10, L-shaped bent pipe B, 11, grouting connecting pipe, 12, connecting flange, 13, 14, lining pipe, 15, top block, 16, drain hole, 17, vent hole, 18, tee joint, 19, water pumping hole, 20, 21, water pumping pump, 22, first valve, 23, second valve and 24 pull ring.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, a tunnel secondary lining vault gap grouting backfill device is arranged in a gap layer 4 between a primary lining surface 3 and a current circulating secondary lining 5, and comprises a lining trolley template 1, a grouting pipe 6, a grouting pump 7 and a water and gas exhaust device, wherein the lining trolley template 1 is arranged below the current circulating secondary lining 5, the grouting pipe 6 is arranged in the gap layer 4, one end of the grouting pipe 6 close to the upper circulating secondary lining 2 is provided with an L-shaped bent pipe A9, the other end of the grouting pipe 6 is provided with an L-shaped bent pipe B10, the openings of the other ends of the L-shaped bent pipe A9 and the L-shaped bent pipe B10 are downwards arranged, the L-shaped bent pipe A9 is connected with a grouting connecting pipe 11, the bottom end of the grouting connecting pipe 11 extends to the lower part of the lining trolley template 1, the grouting pump 7 is respectively connected with the grouting connecting pipe 11 and the L-shaped bent pipe B10 through a first grouting pipe 81 and a second grouting pipe 82, the grouting pump 7 can convey the grouting pipe 82 to the grouting pipe 6 through the first grouting pipe 81 and the second grouting pipe 82, and (4) performing gap grouting operation, wherein the top of the drainage and exhaust device is propped against the lower part of the primary lining surface 3, and the bottom of the drainage and exhaust device extends to the lower part of the lining trolley template 1. And (3) extending the drainage and exhaust device into the primary lining surface 3 to prop against the primary lining surface 3, performing drainage and exhaust construction, grouting the gap layer 4 after the water work is finished, and closing the grouting pump 7 when grout overflows from the bottom of the drainage and exhaust device, stopping grouting and completing gap grouting construction.
Preferably, the grouting connection pipe 11 is fixedly connected with the first slurry conveying pipe 81 through a connection flange 12.
Preferably, the drainage and exhaust device comprises a pipe body 13, an inner lining pipe 14 and a tee joint 18, the inner lining pipe 14 is arranged inside the pipe body 13, the inner lining pipe 14 can move in a piston manner inside the pipe body 13, an exhaust hole 17 is formed in the top of the pipe body 13, a plurality of drain holes 16 are formed in the side wall of the pipe body 13, the inner lining pipe 14 is of a cylindrical structure with openings at the upper end and the lower end, a first valve 22 is arranged at the tail of the pipe body 13, the first valve 22 can seal the bottom end of the pipe body 13, a water pumping hole 19 is formed in the position, above the first valve 22, of the pipe body 13, the water pumping hole 19 is formed in the side wall of the pipe body 13, the tee joint 18 is arranged on the pipe body 13 in a sleeved mode, the tee joint 18 corresponds to the position of the water pumping hole 19, the tee joint 18 is connected with a water pumping pipe 20, the water pumping pipe 20 corresponds to the position of the water pumping hole 19, and a second valve 23 is arranged on the water pumping pipe 20.
Preferably, a suction pump 21 is connected to the suction pipe 20.
Preferably, the top of the tube body 13 is provided with a top block 15, and the height of the top block 15 is set to be 3 cm.
Preferably, the tail of the inner lining tube 14 is provided with a pull ring 24.
Preferably, the inner wall of the tube body 13 is in clearance fit with the outer wall of the lining tube 14.
Preferably, the grouting pipe 6 is provided with a plurality of grouting holes.
Preferably, the grouting connection pipe 11 is made of a steel pipe, and has the characteristics of high strength, wear resistance and the like.
Before grouting construction, a drainage and exhaust device is extended into a gap layer 4, so that a top block 15 is abutted against a primary lining surface 3, a lining pipe 14 is drawn out, a first valve 22 is closed, a second valve 23 is opened, a water suction pump 21 is started, water in the gap layer 4 is left in a pipe body 13 through a water discharge hole 16 and then is discharged along a water suction pipe 20, after no water is drawn out, the second valve 23 is closed, the first valve 22 is opened, the lining pipe 14 is inserted into the pipe body 13 and is inserted to the top of the pipe body 13, all the water discharge holes 16 are sealed by the lining pipe 14, only an exhaust hole 17 is opened, then grouting construction is started, grout flows out from a grouting pipe 6 and is grouted into the gap layer 4, air in the gap layer 4 is discharged from the exhaust hole 17 in the grouting process, so that the air pressure in the gap layer 4 is the same as that of the outside, grouting can be carried out smoothly, when the gap layer 4 is filled with the grouting, the surplus grout can be left in the inner liner pipe 14 through the exhaust holes 17, and after the grout flows out from the bottom along the inner liner pipe 14, the constructor can close the grouting pump 7 to complete grouting.
The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.
Claims (9)
1. The utility model provides a two lining vault gaps slip casting backfill device in tunnel, this device sets up in the clearance layer (4) between primary surface (3) and this circulation secondary lining (5), its characterized in that: comprises a lining trolley template (1), a grouting pipe (6), a grouting pump (7) and a drainage and exhaust device, the lining trolley template (1) is arranged below the circulating secondary lining (5), the grouting pipe (6) is arranged in the void layer (4), one end of the grouting pipe (6) close to the upper circulation secondary lining (2) is provided with an L-shaped bent pipe A (9), the other end is provided with an L-shaped bent pipe B (10), the L-shaped bent pipe A (9) is connected with a grouting connecting pipe (11), the bottom end of the grouting connecting pipe (11) extends to the lower part of the lining trolley template (1), the grouting pump (7) is respectively connected with the grouting connecting pipe (11) and the L-shaped bent pipe B (10) through a first grout conveying pipe (81) and a second grout conveying pipe (82), the top of the drainage and exhaust device is propped against the lower part of the primary lining surface (3), and the bottom of the drainage and exhaust device extends to the lower part of the lining trolley template (1).
2. The grouting backfill device for the vault gap of the tunnel secondary lining according to claim 1, characterized in that: the grouting connecting pipe (11) is fixedly connected with the first slurry conveying pipe (81) through a connecting flange (12).
3. The grouting backfill device for the vault gap of the tunnel secondary lining according to claim 1, characterized in that: drainage exhaust apparatus includes body (13), interior bushing pipe (14) and tee bend (18), interior bushing pipe (14) set up inside body (13), exhaust hole (17) have been seted up at body (13) top, and a plurality of wash ports (16) have been seted up to body (13) lateral wall, interior bushing pipe (14) adopt lower extreme open-ended cylinder structure, body (13) afterbody is provided with first valve (22), body (13) are located the top of first valve (22) and have been seted up drinking-water hole (19), tee bend (18) cover is established on body (13), and tee bend (18) and drinking-water hole (19) position correspond the setting, tee bend (18) are connected with drinking-water pipe (20), be provided with second valve (23) on drinking-water pipe (20).
4. The grouting backfill device for the vault gap of the tunnel secondary lining according to claim 3, characterized in that: the water pumping pipe (20) is connected with a water pumping pump (21).
5. The grouting backfill device for the vault gap of the tunnel secondary lining according to claim 3, characterized in that: the top of the pipe body (13) is provided with an ejector block (15).
6. The grouting backfill device for the vault gap of the tunnel secondary lining according to claim 3, characterized in that: the tail part of the lining pipe (14) is provided with a pull ring (24).
7. The grouting backfill device for the vault gap of the tunnel secondary lining according to claim 3, characterized in that: the inner wall of the pipe body (13) is in clearance fit with the outer wall of the lining pipe (14).
8. The grouting backfill device for the vault gap of the tunnel secondary lining according to claim 1, characterized in that: and the grouting pipe (6) is provided with a plurality of grouting holes.
9. The grouting backfill device for the vault gap of the tunnel secondary lining according to claim 1, characterized in that: the grouting connecting pipe (11) is made of a steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120225618.3U CN214424513U (en) | 2021-01-27 | 2021-01-27 | Tunnel secondary lining vault gap grouting backfill device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120225618.3U CN214424513U (en) | 2021-01-27 | 2021-01-27 | Tunnel secondary lining vault gap grouting backfill device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214424513U true CN214424513U (en) | 2021-10-19 |
Family
ID=78057417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120225618.3U Expired - Fee Related CN214424513U (en) | 2021-01-27 | 2021-01-27 | Tunnel secondary lining vault gap grouting backfill device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214424513U (en) |
-
2021
- 2021-01-27 CN CN202120225618.3U patent/CN214424513U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211019 |