CN216446038U - Water stop protection device for final joint of immersed tunnel - Google Patents
Water stop protection device for final joint of immersed tunnel Download PDFInfo
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- CN216446038U CN216446038U CN202123276357.7U CN202123276357U CN216446038U CN 216446038 U CN216446038 U CN 216446038U CN 202123276357 U CN202123276357 U CN 202123276357U CN 216446038 U CN216446038 U CN 216446038U
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- immersed tube
- supporting
- final joint
- water stop
- protection device
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Abstract
The utility model relates to a waterstop protection device for a final joint of a immersed tunnel, which comprises: a fixed part and a movable part; the fixed part is fixedly connected with the immersed tube expansion section and is positioned outside the water stop belt, and the fixed part is static relative to the immersed tube expansion section; the movable part is positioned outside the water stop belt, one end of the movable part is connected with the fixed part and can rotate relative to the fixed part, the other end of the movable part comprises a support part, when the final joint push-out section is retracted into the immersed tube expansion section, the support part covers the GINA water stop belt and the M water stop belt, and when the final joint push-out section is pushed out of the immersed tube expansion section, the support part can be supported out along with the rotation of the movable part and covers the M water stop belt. The device can all protect the waterstop to avoid outside destruction at the transportation by flotation, sink and push in-process, simple structure, construction convenience has good protection effect.
Description
Technical Field
The utility model belongs to the technical field of immersed tunnel waterstop protection, and particularly relates to a waterstop protection device for a final joint of an immersed tunnel.
Background
The tunnel construction by immersed tube method is that the tunnel caisson prefabricated in semi-submerged barge or dry dock is floated and transported to preset position to be immersed and butted, a distance space longer than the pipe section is required to be reserved for the smooth immersion of the last pipe section, and the pipe section immersed and butted by the remained distance space is regarded as the final joint. The final joint of the submarine immersed tube tunnel is the most important component of the submarine immersed tube tunnel and is the key for constructing the immersed tube tunnel.
As shown in fig. 1, the final joint 1 includes a sinking pipe expanding section 101 and a final joint pushing-out section 102, the final joint pushing-out section 102 is retracted into the sinking pipe expanding section 101 in the sinking pipe floating stage, and the final joint pushing-out section 102 is pushed out of the sinking pipe expanding section in the final joint 1 installation stage to be butted with the previous pipe joint. In order to ensure that the immersed tube is connected to form a watertight structure, a GINA water stop 2 is arranged at the end part of the final joint push-out section 102, and an M water stop 3 is connected between the end part of the final joint push-out section 102 and the immersed tube expansion section, so that the use safety of the tunnel is ensured.
The waterstop is of great importance to whether the installed immersed tube can form a watertight structure or not, and whether the immersed tube tunnel can be normally used or not is concerned, so that the GINA and M waterstops are ensured not to be punctured and torn by sharp objects in the immersed tube floating installation process, and the existing waterstop protection device and method cannot ensure that the waterstops can be protected in the immersed tube floating, sinking and jacking processes.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the related art, the utility model provides the water stop protection device for the final joint of the immersed tube tunnel, which can play a role in protecting the water stop in different stages of immersed tube floating installation.
The utility model provides a water stop protection device for a final joint of a immersed tunnel, which comprises:
the fixed part is fixedly connected with the immersed tube expansion section and is positioned outside the water stop belt, and the fixed part is static relative to the immersed tube expansion section;
and the movable part is positioned outside the water stop belt, one end of the movable part is connected with the fixed part and can rotate relative to the fixed part, the other end of the movable part comprises a support part, when the final joint push-out section is retracted into the immersed tube expansion section, the support part covers the GINA water stop belt and the M water stop belt, and when the final joint push-out section is pushed out of the immersed tube expansion section, the support part can be supported out along with the rotation of the movable part and covers the extended M water stop belt.
In some embodiments, the fixing portion comprises:
the first supporting rod is connected with the top of the immersed tube amplification section, and one end of the first supporting rod extends out of the immersed tube amplification section along the surface of the immersed tube amplification section;
the second supporting rod is fixedly arranged at the extending end of the first supporting rod and is perpendicular to the first supporting rod, a first connecting point is arranged on the second supporting rod, and the movable part is rotatably connected to the first connecting point.
In some embodiments, the movable portion further comprises: the supporting part is used for supporting the supporting part, one end of the supporting part is rotatably connected with the first connecting point, and one side, away from the second supporting rod, of the supporting part is provided with the supporting part.
In some embodiments, the supporting portion is a bracket having a quadrilateral structure, the supporting portion forms one side of the quadrilateral structure, and one side of the supporting portion opposite to the side is a third strut; the top end of the third supporting rod is rotatably connected with the first connecting point; when the final joint push-out section is retracted into the immersed tube amplification section, the third supporting rod is attached to the second supporting rod in the length direction; when the final joint pushing-out section pushes out the immersed tube expanding section, the supporting part rotates around the first connecting point to separate the third supporting rod from the second supporting rod, and the supporting part is supported out and covers the M water stop belt.
In some embodiments, the second strut is provided with a second connection point and a third connection point in the direction away from the immersed tube, the second connection point is located between the first connection point and the third connection point, and the top end of the support part is connected with a pull rod; when the pull rod is connected to the second connecting point, the third supporting rod is attached to the second supporting rod in the length direction; when the pull rod is connected to the third connecting point, the third supporting rod is separated from the second supporting rod, and the support part is supported out and covers the M water stop belt.
In some embodiments, the second supporting rod is provided with a second connecting point in the direction away from the immersed tube, a pull rod is connected between the top end of the supporting portion and the second connecting point, the length of the pull rod is adjustable, the third supporting rod and the second supporting rod can be attached in the length direction by changing the length of the pull rod, or the third supporting rod and the second supporting rod are separated, and the supporting portion is supported out of the M water stop band.
In some embodiments, the standoffs extend outside the quadrilateral structure so that there is sufficient area to cover the outside of the M-stop.
In some embodiments, the waterstop protection devices are arranged in series in multiple and cover the entire width of the top of the enlarged section of the sink pipe.
In some embodiments, both the fixed portion and the movable portion are covered with a protective cover.
In some embodiments, an auxiliary movable part pivotally slings are attached to the fixed and movable parts.
Compared with the prior art, the utility model has the advantages and positive effects that:
(1) the waterstop protection device for the final joint of the immersed tube tunnel provided by the utility model has the advantages that the supporting part can be adaptively supported out according to the floating transportation and installation process of the immersed tube through the matching of the fixed part and the movable part, so that the waterstop protection device can protect the waterstop from being damaged by the outside in the floating transportation, sinking and jacking processes, and the device has a simple structure, is convenient to construct and has a good protection effect.
(2) The waterstop protection device for the final joint of the immersed tunnel is simple in structure, convenient to operate and good in stability, the movable part and the fixed part are connected through the pull rod, and the supporting state of the supporting part can be fixed by adjusting the length or the connecting position of the pull rod.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:
FIG. 1 is a schematic structural view of a final immersed tube joint;
FIG. 2 is a schematic structural view of a waterstop protection device according to an embodiment of the utility model;
fig. 3 is a schematic view of a first working state of the waterstop protection device according to the embodiment of the utility model;
FIG. 4 is a schematic view of a second operating state of the waterstop protection device according to the embodiment of the utility model;
FIG. 5 is a schematic view of a waterstop protection device of an embodiment of the utility model arranged along a cross section of a sink pipe;
in the figure:
1. a final splice; 101. an immersed tube expanding section; 102. a final splice ejection section;
2. a GINA waterstop;
3. m water stop belt;
4. a waterstop protection device; 41. a fixed portion; 42. a movable portion; 421. a supporting part; 422. a support portion; 401. a first support bar; 402. a second support bar; 403. a third support bar; 404. a pull rod;
501. a first connection point; 502. a second connection point; 503. a third connection point;
6. a reinforcing bar;
7. a pull rod;
8. a sling.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An embodiment of the present invention provides a waterstop protection device for a final joint of a immersed tunnel, as shown in fig. 2 to 4, the waterstop protection device includes:
the fixed part 41 is fixedly connected with the immersed tube expansion section 101 and is positioned outside the water stop belt, and the fixed part 41 is static relative to the immersed tube expansion section 101 in the whole process of immersed tube floating installation;
and a movable part 42, wherein the movable part 42 is positioned outside the water stop, one end of the movable part 42 is connected with the fixed part 41 and can rotate relative to the fixed part 41, the other end of the movable part 42 comprises a support part 421, when the final joint push-out section 102 is retracted in the immersed tube expansion section 101, the support part 421 covers the GINA water stop 2 and the M water stop 3, and when the final joint push-out section 102 is pushed out of the immersed tube expansion section 101, the support part 421 can be supported out along with the rotation of the movable part 42 and covers the outside of the expanded M water stop 3.
According to the waterstop protection device for the final joint of the immersed tube tunnel, provided by the embodiment of the utility model, through the matching of the fixed part 41 and the movable part 42, the support part 421 can be supported out adaptively according to the immersed tube floating installation process, so that the waterstop protection device can adapt to the whole immersed tube floating installation process and protect the waterstop from being damaged by objects floating on the water surface or falling on the water surface.
In some embodiments, the fixing portion 41 includes:
a first strut 401, wherein the first strut 401 is connected with the top of the immersed tube amplification section 101, and one end of the first strut 401 extends out of the immersed tube amplification section 101 along the surface of the immersed tube amplification section 101;
a second rod 402, the second rod 402 is fixedly arranged at the extending end of the first rod 401 and is perpendicular to the first rod 401, the second rod 402 is provided with a first connecting point 501, and the movable part 42 is rotatably connected with the first connecting point 501.
The above-described embodiments provide one practical specific structure of the fixing portion 41, but it will be appreciated that other structures may be implemented by those skilled in the art. In addition, in order to enhance the stability of the connection between the first strut 401 and the second strut 402, two or more reinforcing rods 6 are connected therebetween.
In some embodiments, movable portion 42 further includes: the supporting portion 422, the supporting portion 422 is used for supporting the supporting portion 421, one end of the supporting portion 422 is rotatably connected to the first connecting point 501, and the supporting portion 421 is disposed on one side of the supporting portion 422 away from the second supporting rod 402.
Specifically, the supporting portion 422 is a bracket having a quadrilateral structure, the supporting portion 421 forms one side of the quadrilateral structure, and one side of the opposite side of the supporting portion 421 is the third supporting rod 403; the top end of the third strut 403 is rotatably connected with the first connecting point 501; when the final joint push-out section 102 is retracted into the immersed tube amplification section 101, the third strut 403 and the second strut 402 are attached in the length direction; when the final joint pushing-out section 102 pushes out the immersed tube expanding section 101, the supporting portion 422 rotates around the first connecting point 501 to separate the third strut 403 from the second strut 402, and the supporting portion 422 is extended out and covers the extended M-shaped water stop 3.
The above embodiment provides a specific structure of the movable portion 42, and the support portion 422 with a quadrilateral structure is used to support the propping portion 421 and drive the propping portion 421 to rotate so as to cover the upper portion of the M-shaped water stop extending along with the final joint push-out section 102. The quadrilateral structure can realize that one side of the support part 421 is contacted and jointed with the second support rod 402 when the support part is supported out, and the support part 422 is used as an M water stop which can cover the GINA water stop and retract downwards for protection.
Further, a reinforcing bar 6 is installed on a diagonal line of the quadrangular structure to maintain stability of the quadrangular structure.
In order to reduce friction between the second strut 402 and the third strut 403, a pad may be provided on the second strut 402 or the third strut 403 at a contact portion therebetween, and the pad may be made of rubber.
Two embodiments for maintaining the rotatable portion 42 are provided below.
In some embodiments, the second strut 402 is provided with a second connection point 502 and a third connection point 503 in a direction away from the immersed tube, the second connection point 502 is located between the first connection point 501 and the third connection point 503, and the top end of the supporting portion 421 is connected with the pull rod 7; as shown in fig. 3, when the tie rod 7 is connected to the second connection point 502, the third bar 403 is fitted with the second bar 402 in the length direction; when the tie rod 7 is connected to the third connection point 503, the third strut 403 is separated from the second strut 402, and the extension 421 is extended out of the extended M-shaped water stop 3, as shown in fig. 4. In this embodiment, further, the length-adjustable lead screw may be selected for the pull rod 7, and when the position is shifted from the second connection point 502 to the third connection point 503 or from the third connection point 503 to the second connection point 502, the length of the pull rod 7 may be finely adjusted, so that the position shifting is smoothly completed.
In other embodiments, the second strut 402 is provided with a second connection point 502 in a direction away from the immersed tube, a pull rod 7 is connected between the top end of the supporting portion 421 and the second connection point 502, the length of the pull rod 7 is adjustable, the third strut 403 and the second strut 402 can be attached in the length direction by changing the length of the pull rod 7, or the third strut 403 and the second strut 402 are separated and the supporting portion 421 is supported out of the extended M-shaped water stop 3. Specifically, when the final joint push-out section 102 is retracted into the immersed tube enlarged section 101, the length of the adjustment pull rod 7 is extended, so that the third strut 403 is attached to the second strut 402; when the connector pushing-out section 102 is finally pushed out of the immersed tube expanding section 101, the length of the adjusting pull rod 7 is shortened, so that the supporting portion 422 rotates around the first connecting point 501 towards the outside of the immersed tube to drive the supporting portion 421 to be supported out and cover the upper portion of the M-shaped water stop 3.
Further, in order to facilitate the stretching out of the stretching part 421, in some embodiments, the fixed part 41 and the movable part 42 are connected with a sling 8, and when the movable part 42 needs to be rotated, the sling 8 is lifted using a hoisting device such as a tower crane, so that the stretching part 42 is stretched out, and then the fixing stay 7 maintains the state of the stretching part 21.
In some embodiments, the pop-out 421 extends to the outside of the quadrilateral structure of the supporting portion 422, so that the waterstop protection device has enough protection area to cover the outside of the M waterstop 3.
As shown in fig. 5, the waterstop protection device 4 provided in the above embodiment is provided in series in plural and covers the entire width of the top of the enlarged section of the immersed tube, so that all the waterstops can be covered, and the waterstops can be effectively protected from external damage.
The waterstop protection device provided by the embodiment of the utility model implicitly discloses that the fixed part 41 and the movable part 42 are both covered with protective covers. In particular, the shield may be a thin steel plate.
The working process of the water stop protection device for the final joint of the immersed tunnel according to the utility model is described below with reference to fig. 3 and 4:
in the secondary fitting-out stage of the immersed tube, the water stop protection device is arranged on the terminating end of the immersed tube; specifically, the fixed part 41 is fixedly connected with the immersed tube expanding section 101, the third strut 403 of the movable part 42 is tightly attached to the second strut 402 of the fixed part 41, and the state of the movable part 42 is maintained through the pull rod 7;
as shown in fig. 3, during the floating transportation of the immersed tube, the final joint push-out section 102 of the immersed tube final joint 1 is retracted into the immersed tube expansion section 101, and at this time, the push-out part 421 of the movable part 42 extends downwards to protect the GINA water stop 2 and the M water stop 3 from being damaged by the floating objects on the water surface;
when the immersed tube is floated to a designated installation water area, before the final joint of the immersed tube is lowered, the connecting position of the pull rod 7 on the second support rod 402 is adjusted or the length of the pull rod 7 is adjusted, so that the movable part 42 rotates and the support part 421 is supported, and then the fixed pull rod 7 keeps the state of the movable part 42, as shown in fig. 4; in this state, the GINA water stop and the gradually unfolded M water stop can be protected from being damaged by sharp objects falling from the water surface in the final joint lowering stage and the final joint pushing-out stage 102 of the immersed tube;
and after the final joint 1 of the immersed tube is installed, the water stop protection device is removed.
Finally, it should be noted that: the embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.
Claims (10)
1. A waterstop protection device for a final joint of a immersed tunnel, comprising:
a fixed portion fixedly connected with the immersed tube expansion section and located outside the water stop, the fixed portion being stationary relative to the immersed tube expansion section;
the movable part is located outside the water stop band, one end of the movable part is connected with the fixed part and can rotate relative to the fixed part, the other end of the movable part comprises a propping part, when the final joint pushing-out section is retracted into the immersed tube expansion section, the propping part covers the GINA water stop band and the M water stop band, and when the final joint pushing-out section is pushed out of the immersed tube expansion section, the propping part can prop out along with the rotation of the movable part and cover the expanded M water stop band.
2. The waterstop protection device for a final joint of a immersed tunnel according to claim 1, wherein the fixing portion comprises:
the first supporting rod is connected with the top of the immersed tube amplification section, and one end of the first supporting rod extends out of the immersed tube amplification section along the surface of the immersed tube amplification section;
the second supporting rod is fixedly arranged at the extending end of the first supporting rod and is perpendicular to the first supporting rod, a first connecting point is arranged on the second supporting rod, and the movable part is rotatably connected with the first connecting point.
3. The waterstop protection device for a immersed tunnel final joint according to claim 2, wherein the movable portion further comprises: the supporting part, the supporting part is used for supporting prop out the portion, the one end of supporting part with first connecting point rotatable coupling, the supporting part is kept away from one side of second branch is provided with prop out the portion.
4. The waterstop protection device for a final joint of a immersed tunnel according to claim 3, wherein the supporting part is a bracket with a quadrilateral structure, the supporting part forms one side of the quadrilateral structure, and the side opposite to the supporting part is a third supporting rod; the top end of the third supporting rod is rotatably connected with the first connecting point; when the final joint push-out section is retracted into the immersed tube amplification section, the third supporting rod is attached to the second supporting rod in the length direction; when the final joint pushing-out section pushes out the immersed tube expansion section, the supporting part rotates around the first connecting point to enable the third supporting rod to be separated from the second supporting rod, and the supporting part is supported out and covers the M water stop band.
5. The waterstop protection device for the final joint of the immersed tube tunnel according to claim 4, wherein a second connection point and a third connection point are arranged on the second support rod in the direction away from the immersed tube, the second connection point is located between the first connection point and the third connection point, and a pull rod is connected to the top end of the supporting part; when the pull rod is connected to the second connecting point, the third supporting rod is attached to the second supporting rod in the length direction; when the pull rod is connected to the third connection point, the third supporting rod is separated from the second supporting rod, and the support part is supported out and covers the M water stop band.
6. The waterstop protection device for the final joint of the immersed tube tunnel according to claim 4, wherein the second support rod is provided with a second connection point in the direction away from the immersed tube, a pull rod is connected between the top end of the supporting portion and the second connection point, the length of the pull rod is adjustable, and the third support rod and the second support rod can be attached in the length direction by changing the length of the pull rod, or the third support rod and the second support rod are separated and the supporting portion is covered outside the M waterstop band.
7. The waterstop protection device for a final joint of a immersed tunnel according to any one of claims 4-6, wherein the shores extend to the outside of the quadrilateral structure so as to have enough area to cover the outside of the M waterstop.
8. The waterstop protection device for a final joint of a immersed tube tunnel according to any one of claims 1-6, wherein the waterstop protection device is provided in plurality in series and covers the entire width of the top of the immersed tube enlarged section.
9. The waterstop protection device for a final joint of a immersed tunnel according to any one of claims 1 to 6, wherein the fixed portion and the movable portion are each covered with a protective cover.
10. The waterstop protection device for a final joint of a immersed tunnel according to any one of claims 1 to 6, wherein an auxiliary movable part rotatably slinging the fixed part and the movable part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123276357.7U CN216446038U (en) | 2021-12-23 | 2021-12-23 | Water stop protection device for final joint of immersed tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123276357.7U CN216446038U (en) | 2021-12-23 | 2021-12-23 | Water stop protection device for final joint of immersed tunnel |
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| CN216446038U true CN216446038U (en) | 2022-05-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045316A (en) * | 2022-08-15 | 2022-09-13 | 中交第一航务工程局有限公司 | M type waterstop sag prevention device |
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2021
- 2021-12-23 CN CN202123276357.7U patent/CN216446038U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045316A (en) * | 2022-08-15 | 2022-09-13 | 中交第一航务工程局有限公司 | M type waterstop sag prevention device |
| CN115045316B (en) * | 2022-08-15 | 2022-12-16 | 中交第一航务工程局有限公司 | M type waterstop sag prevention device |
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