CN214464265U - Pipe jacking hole water stopping device - Google Patents
Pipe jacking hole water stopping device Download PDFInfo
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- CN214464265U CN214464265U CN202120633737.2U CN202120633737U CN214464265U CN 214464265 U CN214464265 U CN 214464265U CN 202120633737 U CN202120633737 U CN 202120633737U CN 214464265 U CN214464265 U CN 214464265U
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Abstract
The utility model discloses a push pipe entrance to a cave watertight fittings, include: the mounting seat comprises an outside-tunnel mounting seat and an inside-tunnel mounting seat, the outside-tunnel mounting seat is fixedly connected with the outer wall of the pipe-jacking tunnel opening, and the inside-tunnel mounting seat is fixedly connected with the inner wall of the pipe-jacking tunnel opening; the water stopping assembly comprises a first water stopping curtain connected with the mounting seat outside the hole, a connecting flange connected with the first water stopping curtain, a second water stopping curtain connected with the connecting flange and a water stopping brush connected with the mounting seat inside the hole. The mount pad is with stagnant water subassembly fixed connection at the push pipe entrance to a cave, and through setting up double-deck stagnant water curtain, the effect that effective increase volume blockked the muddy water of push pipe outer wall, and fixedly connected with stagnant water brush on the mount pad in the hole, further carries out the separation with the muddy water in the push pipe gap, has improved the stagnant water effect greatly, simultaneously the utility model discloses simple structure, the effect is showing, is suitable for extensive popularization.
Description
Technical Field
The utility model relates to a push pipe tunnel construction technical field, in particular to, a push pipe entrance to a cave watertight fittings.
Background
The pipe-jacking construction is a non-excavation construction method, and is a pipeline burying construction technology without excavation or with few excavation. The method has multiple advantages, the pipe jacking construction is adopted, the influence on traffic on the ground is small, the construction floor area is relatively small when the pipe jacking construction is carried out, and the pipe jacking construction can pass through railways, highways, rivers and the like, so that the cost is saved. The noise that the in-process of push pipe construction produced is less, can not produce the interference to resident's daily life. In the process of mud-water balance pipe jacking construction, the mud-water pressure is used for balancing the pressure of excavation face soil and other underground water pressure, finally the slurry is discharged, and in the jacking process, the friction reducing slurry is injected into the gap of the outer wall of the pipe jacking to reduce the jacking frictional resistance of the pipe jacking. In the jacking construction process of the jacking pipe, the hole openings of the starting well and the receiving well both relate to a water stopping process, so that the phenomenon that the ground surface of a line is obviously settled due to the fact that muddy water flows into the vertical shaft is prevented, friction reducing mud flows into the working well, influences are caused on construction equipment, and waste is caused.
The existing pipe jacking single-layer collar waterproof equipment has the defect that once the structure deforms and fails, the water stopping effect is greatly reduced, and the condition that antifriction slurry and muddy water between the outer wall of the pipe jacking and the soil body can flow out from the hole gap still exists.
Aiming at the problems, the pipe-jacking hole water-stopping device is designed, the problems that the existing pipe-jacking waterproof equipment has defects and the installed water-stopping effect is poor are solved, and the pipe-jacking hole water-stopping device is easy to widely apply and is used for improving the current situation.
SUMMERY OF THE UTILITY MODEL
To the above defect, the utility model provides a technical problem lies in, provides a push pipe entrance to a cave watertight fittings to solve the current push pipe waterproof equipment that prior art exists and have the defect, the not good problem of effect of the stagnant water after the installation.
The utility model provides a push pipe entrance to a cave watertight fittings, include:
the mounting seat comprises an outside-tunnel mounting seat and an inside-tunnel mounting seat, the outside-tunnel mounting seat is fixedly connected with the outer wall of the top pipe tunnel opening, and the inside-tunnel mounting seat is fixedly connected with the inner wall of the top pipe tunnel opening;
the water stopping assembly comprises a first water stopping curtain connected with the mounting seat outside the hole, a connecting flange connected with the first water stopping curtain, a second water stopping curtain connected with the connecting flange and a water stopping brush connected with the mounting seat inside the hole.
Preferably, the water stopping assembly further comprises:
the first fixed pressing plate is arranged between the first water stop curtain and the connecting flange, and the inner diameter of the first fixed pressing plate is smaller than that of the mounting seat in the hole;
and the second fixed pressing plate is connected with the second water stopping curtain.
Preferably, the pipe jacking hole water stopping device further comprises a fixing element, one end of the fixing element is embedded in the outer wall of the pipe jacking hole, and the fixing element penetrates through the hole outer mounting seat and is connected with the water stopping assembly.
Preferably, the second rigid pressing plate comprises a plurality of strip-shaped pressing plates, and the strip-shaped pressing plates are circumferentially arranged on the second water stop curtain.
Preferably, the outer diameter of the connecting flange is equal to the outer diameter of the mounting seat outside the hole.
Preferably, the elongated pressing plate is slidably connected with the second water stop curtain.
Preferably, the strip-shaped pressing plate is provided with adjusting scales.
Preferably, the length of the end, contacting with the pipeline, of the first water stop curtain, exceeding the mounting seat in the hole is 90-110 mm, the second water stop curtain structure is the same as the first water stop curtain, and the distance between the end, close to the outer wall of the pipeline, of the first fixed pressing plate and the outer wall of the pipeline is 20-40 mm.
Preferably, the included angle between the lower end of the water stopping brush and the outer wall of the pipeline is 40-50 degrees.
According to the above technical scheme, the utility model provides a pair of push pipe entrance to a cave watertight fittings. Through setting up two-layer stagnant water curtain, carry out the push pipe stagnant water, first stagnant water curtain passes through the outer mount pad of hole and fixes outside the push pipe entrance to a cave, and flange connection first stagnant water curtain and second stagnant water curtain make the push pipe when advancing in the top, carry out the stagnant water through two-layer stagnant water curtain, and the stagnant water curtain closely laminates the push pipe outer wall, blocks the muddy water of push pipe outer wall, accomplishes the stagnant water. Simultaneously, set up stagnant water brush in the hole, stagnant water brush is connected with the mount pad in the hole, and stagnant water brush can block the muddy water in the push pipe outer wall gap. The utility model discloses a set up two-layer stagnant water curtain and carry out the push pipe stagnant water, and be equipped with stagnant water brush, greatly reduced antifriction mud and muddy water can follow the condition that the entrance to a cave gap flows, solved the current push pipe waterproof equipment that prior art exists and had the defect, the not good problem of effect of stagnant water after the installation, simple structure simultaneously, the effect is showing, is suitable for extensive popularization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a pipe jacking hole water stopping device provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a pipe jacking process of the pipe jacking hole water stopping device provided in FIG. 1;
fig. 3 is a schematic front view of the pipe jacking hole water stopping device shown in fig. 1.
In FIGS. 1-3:
1. a mounting seat; 2. a water stop assembly; 3. a pipeline; 4. the outer wall of the pipe jacking hole; 5. the inner wall of the pipe jacking hole; 6. a fixing element; 11. a mounting seat outside the hole; 12. a mounting seat in the hole; 21. a first water-stop curtain; 22. a connecting flange; 23. a second water-stop curtain; 24. a water stopping brush; 25. a first stationary platen; 26. a second stationary platen; 261. and a strip-shaped pressing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, 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.
Example 1
Referring to fig. 1 to fig. 3, a specific embodiment of a pipe jacking hole sealing device according to the present invention will now be described. This kind of push pipe entrance to a cave sealing device includes: the water-stopping device comprises a mounting seat 1 and a water-stopping assembly 2, wherein the mounting seat 1 comprises an out-of-hole mounting seat 11 and an in-hole mounting seat 12, the out-of-hole mounting seat 11 is fixedly connected with the outer wall 4 of the pipe-jacking hole, and the in-hole mounting seat 12 is fixedly connected with the inner wall 5 of the pipe-jacking hole; the water stopping assembly 2 includes: a first water-stop curtain 21 connected with the installation seat 11 outside the tunnel, a connecting flange 22 connected with the first water-stop curtain 21, a second water-stop curtain 23 connected with the connecting flange 22 and a water-stop brush 24 connected with the installation seat 12 in the tunnel.
The connection of mount pad 1 and push pipe entrance to a cave is pre-buried when being formed by working well structure concrete placement, and 12 surfaces of mount pad level with push pipe entrance to a cave inner wall 5 in the hole, and 11 surfaces of mount pad are leveled mutually with push pipe entrance to a cave outer wall 4 surfaces outside the hole for increase fixed power reduces the influence to the push pipe construction simultaneously. The first water stop curtain 21 and the second water stop curtain 23 are connected through the connecting flange 22, the cross section of the connecting flange 22 is of a concave annular structure and is a steel flange, and on the basis of increasing the connecting stability, the weight of a connecting piece is reduced to the greatest extent. The first water-stopping curtain 21 and the second water-stopping curtain 23 are rubber curtains, the first water-stopping curtain 21, the connecting flange 22 and the second water-stopping curtain 23 are coaxially arranged with a pipe-jacking hole and used for avoiding muddy water caused by decentraction from flowing out when pipe jacking is operated, the outer diameter of the first water-stopping curtain 21 is the same as that of the mounting seat 11 outside the hole, the length of 90mm-110mm is reserved at one end of the water-stopping curtain in contact with the pipeline 3 and can be 100mm, the water-stopping curtain is ensured to be in full contact with the outer surface of the pipeline 3 when the pipeline 3 is jacked in, the first water-stopping curtain 21 and the second water-stopping curtain 23 are in sealing fit with the periphery of the outer wall of the pipeline 3 and gaps of the hole, and the outflow of soil particles, mud and water is limited to the maximum extent. The length of the water stopping brush 24 can be 50mm and is used for being fully contacted with the pipeline 3, the water stopping brush 24 is connected with the mounting seat 12 in the tunnel, one end, in contact with the pipeline 3, of the water stopping brush 24 inclines by 40-50 degrees towards the advancing direction of the jacking pipe and can be 45 degrees, and the water stopping brush 24 is used for further blocking muddy water in the gap of the pipeline 3. It is to be understood that the terms first and second are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Compared with the prior art, this kind of push pipe entrance to a cave stagnant water device passes through flange 22 and connects first stagnant water curtain 21 and second stagnant water curtain 23, sets up double-deck stagnant water curtain, makes pipeline 3 when advancing in the top, carries out the stagnant water through two-layer stagnant water curtain, stops twice muddy water to pipeline 3 outer wall, more effectual completion stagnant water. Meanwhile, the water stopping brush 24 is arranged on the inner wall 5 of the top pipe opening, and the water stopping brush 24 can stop muddy water in a gap of the outer wall of the pipeline 3. The utility model discloses a set up first stagnant water curtain 21 and second stagnant water curtain 23 two-layer stagnant water curtain and carry out the push pipe stagnant water, and be equipped with stagnant water brush 24 in the hole, greatly reduced antifriction mud and muddy water can follow the condition that the entrance to a cave gap flows, solved the current push pipe waterproof equipment that prior art exists and have a defect, the not good problem of effect of the stagnant water after the installation, simple structure simultaneously, the effect is showing, is suitable for extensive popularization.
Example 2
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to fig. 3 together, the structure of the pipe jacking hole sealing device provided in this embodiment is basically the same as that of embodiment 1, and the difference is that: the water stopping assembly 2 further includes: the first fixed pressing plate 25 is arranged between the first water stop curtain 21 and the connecting flange 22, and the inner diameter of the first fixed pressing plate 25 is smaller than that of the mounting seat 12 in the hole; the second fixed platen 26 is connected to the second water-stop curtain 23. The first water-stopping curtain 21 is arranged on the outer surface of the mounting seat 11 outside the hole, the first fixing pressing plate 25 is an annular steel pressing plate and used for pressing the first water-stopping curtain 21 tightly, the fixing pressing plate is fastened through a fixing bolt, and the outer diameter of the first fixing pressing plate 25 is the same as the outer diameter of the first water-stopping curtain 21 and used for sufficiently fixing and pressing the first water-stopping curtain 21 tightly. The inner diameter of the first fixed pressing plate 25 is smaller than the diameter of the mounting seat 12 in the hole, and one end, close to the outer wall of the pipeline 3, of the first fixed pressing plate 25 is 20-40 mm away from the outer wall of the pipeline 3, can be 30mm, and is used for limiting the outward turning of the first water-stopping curtain 21 and avoiding the phenomenon that the first water-stopping curtain 21 is turned out by the pressure of muddy water in the hole to cause the seepage of the muddy water. The second fixed pressing plate 26 is connected with the second water stop curtain 23 and used for fixing the second water stop curtain 23, and the size of the second fixed pressing plate 26 is the same as that of the first fixed pressing plate 25, so that the second water stop curtain 23 is prevented from being deformed to influence the water stop effect.
In this embodiment, a pipe jacking entrance to a cave sealing device still includes fixed element 6, and fixed element 6 one end is pre-buried inside pipe jacking entrance to a cave outer wall 4, and fixed element 6 runs through hole outer mount pad 11 and is connected with stagnant water subassembly 2. Fixing element 6 can be the double-screw bolt, one end welding steel sheet, with the steel sheet end pre-buried inside pipe jacking entrance to a cave outer wall 4, make fixing element 6 more stable, evenly predetermine a plurality of fixing element 6 on pipe jacking entrance to a cave outer wall 4, fixing element 6 is concentric with the pipe jacking entrance to a cave, and the circumference sets up, adjacent fixing element 6 evenly sets up according to 10 intervals, first stagnant water curtain 21, suitable screw is opened according to same position to first stationary platen 25 and flange 22, fasten the three through fixation nut and packing ring. And a circular ring-shaped base plate can be arranged between the nut and the connecting flange 22 to ensure that the bolt provides enough pressure for the water-stopping curtain, so that the mud and water are more effectively blocked, and the water-stopping effect of the top pipe opening is improved. It is within the scope of the present patent document to achieve the above-described performance-related function of the fixing element 6. The terms "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In this embodiment, the second fixed pressing plate 26 includes a plurality of elongated pressing plates 261, and the elongated pressing plates 261 are circumferentially disposed on the second water-stop curtain 23. The strip-shaped pressing plates 261 are rectangular steel plates, the strip-shaped pressing plates 261 are arranged on the outer surface of the second water stop curtain 23 and are arranged circumferentially around the axis of the second water stop curtain 23, the interval between every two adjacent strip-shaped pressing plates 261 can be 10 degrees, and the connecting flange 22, the second water stop curtain 23 and the strip-shaped pressing plates 261 are fastened through bolts. A plurality of uniform round holes which are axially arranged are formed in proper positions of the second water-stopping curtain 23, and the connecting flange 22, the second water-stopping curtain 23 and the strip-shaped pressing plate 261 are fastened in place through bolts. The second water-stop curtain 23 is fixed by a plurality of strip-shaped pressing plates 261, so that the position of the second water-stop curtain 23 is ensured not to change in the pipe jacking process. The end of the second fixed pressing plate 26, which points to the outer wall of the pipeline 3, is extended to a position closer to the outer wall of the pipeline 3, and the distance between the end and the outer wall of the pipeline 3 can be 30mm, so that the second water stopping curtain 23 is limited from turning outwards, and the water resistance of the water stopping device is better ensured. The second water-stopping curtain 23 is compressed by the strip-shaped pressing plates 261, so that the water-stopping structure can be conveniently detached and adjusted.
In the present embodiment, the outer diameter of the connecting flange 22 is equal to the outer diameter of the second water curtain 23. The coaxial fixation of the second water stop curtain 23 is facilitated, and whether the second water stop curtain 23 and the connecting flange 22 are installed coaxially can be determined directly through observation. The second water-stopping curtain 23 and the first water-stopping curtain 21 are connected through the connecting flange 22, so that the concentric installation of the two-layer structure can be conveniently adjusted while the two-layer water-stopping structure is connected. Meanwhile, the second water stop curtain 23 is more stably fixed, and the connecting flange 22 is used for fixing the inner side of the second water stop curtain 23 besides the connecting function. The connecting flange 22 has the same outer diameter as the second water stop curtain 23, and compresses and fixes the water stop curtain in all directions.
Example 3
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to fig. 3, the structure of the pipe jacking hole sealing device provided in this embodiment is substantially the same as that of embodiment 2, and the difference is that the strip-shaped pressing plate 261 is slidably connected to the second sealing curtain 23. Be equipped with the rectangular hole on the rectangular shape clamp plate 261, through bolt fixed connection flange 22, second stagnant water curtain 23 and rectangular shape clamp plate 261, rectangular shape clamp plate 261 is through adjusting fixed position, adjusts the distance of the one end distance pipeline 3 outer wall of the directional pipeline 3 of rectangular shape clamp plate 261, and then adjusts the length that blocks to second stagnant water curtain 23, adjusts suitable position, guarantees that second stagnant water curtain 23 can not lead to turning up because of muddy water pressure.
In this embodiment, the strip-shaped pressing plate 261 is provided with an adjustment scale. The adjustment scale is arranged along the length direction of the elongated pressing plate 261. When the fixing position of the elongated pressing plate 261 is adjusted, the fixing positions of all the elongated pressing plates 261 are adjusted by observing and adjusting the adjusting scales fixed by the screws, so that all the elongated pressing plates 261 are ensured to be positioned on the same circumference. The situation that excessive friction or scratch occurs when the top pipe advances due to the fact that the position of each long strip-shaped pressing plate 261 can be adjusted and whether the long strip-shaped pressing plates are arranged on the same circumference is difficult to determine is avoided, and meanwhile muddy water penetration caused by gaps or tilting due to different fixing positions is also avoided.
In the present embodiment, a seal ring is provided between the first stationary platen 25 and the connecting flange 22. The sealing ring is an annular rubber gasket. The first fixing clip 25 is a steel plate, which may be bent or deformed during the production and fixing process, and these deformations may cause gaps when being fixed to the connecting flange 22, resulting in that muddy water on the outer wall of the pipe 3 passes through these gaps due to excessive pressure. Through the bolt fastening, the sealing washer is compressed tightly between first fixed pressing plate 25 and flange 22, has filled the gap that probably appears, through the muddy water that the sealing washer separation probably flows, better assurance sealing device's waterproof nature.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a push pipe entrance to a cave watertight fittings which characterized in that includes:
the mounting seat (1) comprises an outer mounting seat (11) and an inner mounting seat (12), the outer mounting seat (11) is fixedly connected with the outer wall (4) of the pipe jacking hole, and the inner mounting seat (12) is fixedly connected with the inner wall (5) of the pipe jacking hole;
the water stopping assembly (2) comprises a first water stopping curtain (21) connected with the mounting seat (11) outside the hole, a connecting flange (22) connected with the first water stopping curtain (21), a second water stopping curtain (23) connected with the connecting flange (22) and a water stopping brush (24) connected with the mounting seat (12) inside the hole.
2. The pipe jacking hole opening water stopping device according to claim 1, wherein the water stopping assembly (2) further comprises:
the first fixed pressing plate (25) is arranged between the first water stop curtain (21) and the connecting flange (22), and the inner diameter of the first fixed pressing plate (25) is smaller than that of the mounting seat (12) in the hole;
and the second fixed pressing plate (26) is connected with the second water stopping curtain (23).
3. The pipe jacking hole water stopping device according to claim 2, further comprising a fixing element (6), wherein one end of the fixing element (6) is embedded in the outer wall (4) of the pipe jacking hole, and the fixing element (6) penetrates through the hole outer mounting seat (11) to be connected with the water stopping component (2).
4. The pipe jacking hole waterstop device of claim 3, wherein the second fixed pressing plate (26) comprises a plurality of elongated pressing plates (261), and the elongated pressing plates (261) are circumferentially arranged on the second waterstop curtain (23).
5. A pipe jacking hole waterstop device according to claim 4, wherein the outer diameter of the connecting flange (22) is equal to the outer diameter of the second waterstop curtain (23).
6. A pipe jacking hole waterstop device according to claim 5, wherein said elongated pressing plate (261) is slidably connected with said second waterstop curtain (23).
7. The pipe jacking hole opening water stopping device according to claim 6, wherein the elongated pressing plate (261) is provided with an adjusting scale.
8. The pipe jacking entrance water stopping device according to claim 7, wherein the length of the end of the first water stopping curtain (21) contacting the pipeline (3) beyond the in-tunnel mounting seat (12) is 90mm-110mm, the second water stopping curtain (23) has the same structure as the first water stopping curtain (21), and the distance between the end of the first fixed pressing plate (25) close to the outer wall of the pipeline (3) and the outer wall of the pipeline (3) is 20mm-40 mm.
9. The pipe jacking hole water stopping device according to claim 8, wherein an included angle between the lower end of the water stopping brush (24) and the outer wall of the pipeline (3) is 40-50 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120633737.2U CN214464265U (en) | 2021-03-29 | 2021-03-29 | Pipe jacking hole water stopping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120633737.2U CN214464265U (en) | 2021-03-29 | 2021-03-29 | Pipe jacking hole water stopping device |
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| CN214464265U true CN214464265U (en) | 2021-10-22 |
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| CN202120633737.2U Active CN214464265U (en) | 2021-03-29 | 2021-03-29 | Pipe jacking hole water stopping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544481A (en) * | 2022-01-26 | 2022-05-27 | 合肥市市政设计研究总院有限公司 | Mud antifriction effect testing instrument and method |
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2021
- 2021-03-29 CN CN202120633737.2U patent/CN214464265U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544481A (en) * | 2022-01-26 | 2022-05-27 | 合肥市市政设计研究总院有限公司 | Mud antifriction effect testing instrument and method |
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