CN214832342U - Novel submarine pipeline landing structure - Google Patents
Novel submarine pipeline landing structure Download PDFInfo
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- CN214832342U CN214832342U CN202120228446.5U CN202120228446U CN214832342U CN 214832342 U CN214832342 U CN 214832342U CN 202120228446 U CN202120228446 U CN 202120228446U CN 214832342 U CN214832342 U CN 214832342U
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- box culvert
- breakwater
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- pipeline
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Abstract
The utility model discloses a novel submarine pipeline lands structure, include: the prefabricated box culvert comprises a breakwater, a prefabricated box culvert and a prefabricated cover plate arranged at the top of the prefabricated box culvert; the breakwater is provided with a plurality of prefabricated box culverts, the prefabricated box culverts are partially embedded into the breakwater, each prefabricated box culvert comprises a reserved groove and an anti-skidding toe arranged at the bottom of the prefabricated box culvert, a plurality of reserved steel bars are arranged in the reserved groove, and at least one pipeline penetrates through the inner side of each prefabricated box culvert; the prefabricated cover plate top is provided with a plurality of and disappears unrestrained groove, the apron top is provided with a plurality of and disappears unrestrained hole, a plurality of the unrestrained hole array that disappears distributes, arbitrary it is provided with at least one hole that disappears to disappear in the unrestrained inslot, carries out the part to having the breakwater earlier and removes, and the prefabricated box culvert of back installation lays the pipeline, and the prefabricated cover plate of installation is repaired the breakwater structure of box culvert both sides at last, adopts prefabricated box culvert structure can simplify construction process for the construction progress.
Description
Technical Field
The utility model relates to a civil engineering construction field, especially the submarine pipeline that has had breakwater structure in open sea lands the problem.
Background
The import and export loading and unloading points for liquid chemical goods such as oil and natural gas are usually constructed on open sea far off the shore, and then submarine pipelines are laid to transport the liquid goods to a work platform or a receiving station on the field. And the pipeline laid on the seabed is connected with the land access point through the landing structure. The landing structure types commonly used in engineering are divided into a slope type and a vertical type.
The slope type landing is a structural type that a submarine pipeline climbs to a land area along a certain slope and is connected with a land access point along a seabed and a beach, an existing revetment or a breakwater under the condition of meeting process requirements. Because the wave conditions at the beach, the existing shore protection or the breakwater position are complex and the beach evolves more violently, the landing pipeline needs a concrete structure or rock blocks for protection, and extra engineering measures need to be adopted to ensure the stability of the beach and the existing structure so as to ensure the safety of the pipeline operation. The slope type landing structure has the advantages of simple type, convenient construction and low investment cost, and is suitable for the conditions that the wave shield is good and the landing revetment or the breakwater can be utilized in the engineering area. Vertical landing is a structural mode that a riser system for landing a submarine pipeline is attached to a guide device on an offshore working platform or an approach bridge pile foundation and is perpendicular to a land access point connection. The vertical structure is suitable for the situation that the receiving equipment is positioned on a working platform in the open sea, and the situation that the near shore beach evolves violently and the wave condition is complex and the project investment of the slope type structure is large.
For the condition of landing by utilizing the existing breakwater pipeline in open sea, because the wave is generally large in the engineering area, if a slope type landing structure for protecting after a traditional foundation trench is excavated and the pipeline is buried is adopted, the construction of dismantling the protective surface of the existing breakwater, excavating the cushion layer dike core and installing again is complex, and the risk of subsequent sand leakage is caused by the need of sand backfill due to the consideration of pipeline protection. In the structure, the pipeline is buried under the dyke core stone, and the subsequent operation is basically impossible to overhaul the pipeline. If a vertical landing structure is adopted, the construction of a pile foundation platform structure or a caisson structure of the guide device in open sea is complex, the investment cost is high, and an approach bridge with a certain length needs to be additionally arranged to connect land landing points, so that the investment cost is further increased; and the risk of damage to the pipeline caused by the passing ship exists in the subsequent operation.
Disclosure of Invention
The utility model overcomes prior art's is not enough, provides a novel submarine pipeline lands structure. In order to achieve the above purpose, the utility model adopts the technical scheme that: a novel submarine pipeline landing structure comprises a breakwater, a prefabricated box culvert and a prefabricated cover plate arranged at the top of the prefabricated box culvert;
the breakwater is provided with a plurality of prefabricated box culverts, the prefabricated box culverts are partially embedded into the breakwater, each prefabricated box culvert comprises a reserved groove and an anti-skidding toe arranged at the bottom of the prefabricated box culvert, a plurality of reserved steel bars are arranged in the reserved groove, and at least one pipeline penetrates through the inner side of each prefabricated box culvert; the prefabricated cover plate is characterized in that a plurality of wave dissipation grooves are formed in the top of the prefabricated cover plate, a plurality of wave dissipation holes are formed in the top of the cover plate and distributed in an array mode, and at least one wave dissipation hole is formed in any wave dissipation groove.
In a preferred embodiment of the present invention, the wave dissipating grooves have a square cross section.
In a preferred embodiment of the present invention, the top dimension of the wave dissipating groove is larger than the bottom dimension of the wave dissipating groove.
In a preferred embodiment of the present invention, the prefabricated box culvert has a U-shaped structure.
In a preferred embodiment of the present invention, the top of the reserved steel bar is connected to the prefabricated cover plate.
In a preferred embodiment of the present invention, a pipeline protection structure is disposed on the upper side of the pipeline in the sea area.
In a preferred embodiment of the present invention, the pipeline is provided with a land access point at one end.
In a preferred embodiment of the present invention, a breakwater facing structure is disposed on one side of the breakwater.
In a preferred embodiment of the present invention, the bottom of the end of the breakwater near the sea area is provided with leveling stones.
In a preferred embodiment of the present invention, the plurality of the reserved steel bars are distributed along the length direction of the reserved groove at intervals.
The utility model provides a defect that exists among the background art, the utility model discloses possess following beneficial effect:
(1) the existing breakwater structure is used for pipeline landing, and the pipeline needs to be protected in consideration of large open sea waves. Firstly, removing parts of a protective surface, a cushion layer, a dike core and the like of the existing breakwater, then installing a prefabricated U-shaped box culvert, laying pipelines, installing prefabricated cover plates, and finally repairing breakwater structures on two sides of the box culvert. The method is characterized in that the excavation work amount of the conventional breakwater structure is less; the prefabricated box culvert structure is adopted, so that the construction process can be simplified, and the construction progress can be accelerated; and the pipelines in the box culvert can be adjusted according to the installation requirements and overhauled in the operation period.
(2) The convenient prefabricated apron of preformed groove is fixed a position in the installation to and follow-up pour through the secondary and form whole bearing wave load jointly with prefabricated U-shaped box culvert, the reducible wave effort of unrestrained hole and the structure wave that disappear climb, can add the unrestrained groove that disappears in order to reduce the wave and climb in the great region of wave.
Drawings
The present invention will be further explained with reference to the drawings and examples;
FIG. 1 is a schematic cross-sectional view A-A of a preferred embodiment of the present invention;
fig. 2 is a schematic view of a breakwater structure according to a preferred embodiment of the present invention;
figure 3 is a schematic cross-sectional view of the prefabricated box culvert of the preferred embodiment of the present invention;
figure 4 is a side view of the prefabricated box culvert of the preferred embodiment of the present invention;
FIG. 5 is a top plan view of a pre-fabricated cover plate of a preferred embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a pre-fabricated cover plate of a preferred embodiment of the present invention;
in the figure: 1. a land area access point; 2. prefabricating a box culvert; 3. a bank slope; 4. a pipeline; 5. a breakwater armor structure; 6. leveling the broken stones; 7. a pipeline protective structure; 8. wave dissipating holes; 9. reserving a steel bar; 10. a wave dissipation groove; 11. antislip toes, 12, a preformed groove, 13 and a prefabricated cover plate.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and which therefore show only the constituents relevant to the invention.
As shown in fig. 1-6, the present invention discloses a partial structure schematic diagram of a novel submarine pipeline landing structure; particularly, a novel submarine pipeline lands structure, including breakwater, prefabricated box culvert 2 and set up at the prefabricated apron 13 at prefabricated box culvert 2 top.
Be provided with the prefabricated box culvert 2 of a plurality of on the breakwater, in the prefabricated box culvert 2 part embedding breakwater, breakwater one side is provided with bank slope 3, prefabricated box culvert 2 includes preformed groove 12 and sets up the anti-skidding toe 11 in prefabricated box culvert 2 bottom, and preformed groove 12 is inside to be provided with a plurality of and to reserve reinforcing bar 9, and 2 inboard run through of prefabricated box culvert is provided with at least one pipeline 4.
The top of the prefabricated cover plate 13 is provided with a plurality of wave dissipation grooves 10, the top of the cover plate is provided with a plurality of wave dissipation holes 8, the plurality of wave dissipation holes 8 are distributed in an array mode, at least one wave dissipation hole 8 is arranged in any wave dissipation groove 10, and wave action force and structural wave climbing height of the wave dissipation holes 8 can be reduced.
The cross-section of the wave dissipation groove 10 is of a square structure, the size of the top of the wave dissipation groove 10 is larger than the size of the bottom of the wave dissipation groove 10, the wave dissipation groove 10 is arranged on a structure with larger waves and strict wave-crossing requirements, and the wave dissipation groove 10 reduces the wave climbing height.
The utility model discloses a preferred embodiment, prefabricated box culvert 2 is the U-shaped structure, and reserved reinforcing bar 9 top links to each other with prefabricated apron 13, and prefabricated box culvert 2 is confirmed according to the wave load with the size of prefabricated apron 13. A plurality of reserved steel bars 9 are distributed at intervals along the length direction of the reserved groove 12.
In a preferred embodiment of the utility model, a pipeline protection structure 7 is arranged on the upper side of a part of pipeline 4 in the sea area, one end of the pipeline 4 is provided with a land area access point 1, and one side of the breakwater is provided with a breakwater protection surface structure 5; the bottom of one end of the breakwater close to the sea area is provided with leveling broken stones 6.
In conclusion, the existing breakwater structure is used for landing the pipeline 4, and the pipeline 4 needs to be protected in consideration of large open sea waves. Firstly, removing parts of a protective surface, a cushion layer, a dike core and the like of the existing breakwater, then installing a prefabricated U-shaped box culvert, laying a pipeline 4, installing a prefabricated cover plate 13, and finally repairing breakwater structures on two sides of the box culvert. The method is characterized in that the excavation work amount of the conventional breakwater structure is less; the construction process can be simplified and the construction progress can be accelerated by adopting the prefabricated box culvert 2 structure; and the pipeline 4 in the box culvert can be adjusted according to the installation requirement and the pipeline 4 is overhauled in the operation period.
The sizes of the prefabricated U-shaped box culvert and the prefabricated cover plate 13 are determined according to the wave load. The prefabricated U-shaped box culvert comprises reserved steel bars 9, reserved grooves 12 and anti-skidding toes 11, wherein the reserved steel bars 9 are connected with an upper prefabricated cover plate 13, the reserved grooves 12 are formed in a whole through secondary pouring after the prefabricated cover plate 13 is installed, and the anti-skidding toes 11 are used for increasing the slope anti-skidding stability of the prefabricated U-shaped box culvert 1. The prefabricated cover plate 13 is hoisted and installed after the pipeline 4 is installed, secondary pouring and the prefabricated U-shaped box culvert are integrally formed, the prefabricated cover plate comprises a reserved groove 12 and a wave dissipation hole 8, and a wave dissipation groove 10 can be additionally arranged on a structure which has a large wave and strict wave-crossing requirements so as to reduce wave climbing height. The preformed groove 12 facilitates the prefabricated cover plate 13 to be positioned in the installation process, and the follow-up secondary pouring and the prefabricated U-shaped box culvert form a whole body to bear the wave load together, the wave absorbing hole 8 can reduce the wave acting force and the structural wave climbing height, and the wave absorbing groove 10 can be additionally arranged in the wave larger area to reduce the wave climbing height.
In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A novel submarine pipeline landing structure comprises a breakwater, a prefabricated box culvert and a prefabricated cover plate arranged at the top of the prefabricated box culvert; it is characterized in that the preparation method is characterized in that,
the breakwater is provided with a plurality of prefabricated box culverts, the prefabricated box culverts are partially embedded into the breakwater, each prefabricated box culvert comprises a reserved groove and an anti-skidding toe arranged at the bottom of the prefabricated box culvert, a plurality of reserved steel bars are arranged in the reserved groove, and at least one pipeline penetrates through the inner side of each prefabricated box culvert;
the prefabricated cover plate is characterized in that a plurality of wave dissipation grooves are formed in the top of the prefabricated cover plate, a plurality of wave dissipation holes are formed in the top of the cover plate and distributed in an array mode, and at least one wave dissipation hole is formed in any wave dissipation groove.
2. A novel subsea pipeline landing structure, according to claim 1, characterized by: the section of the wave dissipation groove is of a square structure.
3. A novel subsea pipeline landing structure, according to claim 1, characterized by: the size of the top of the wave dissipation groove is larger than that of the bottom of the wave dissipation groove.
4. A novel subsea pipeline landing structure, according to claim 1, characterized by: the prefabricated box culvert is of a U-shaped structure.
5. A novel subsea pipeline landing structure, according to claim 1, characterized by: and the top of the reserved steel bar is connected with the prefabricated cover plate.
6. A novel subsea pipeline landing structure, according to claim 1, characterized by: and a pipeline protection structure is arranged on the upper side of the part of the pipeline in the sea area.
7. A novel subsea pipeline landing structure, according to claim 1, characterized by: one end of the pipeline is provided with a land area access point.
8. A novel subsea pipeline landing structure, according to claim 7, characterized by: one side of the breakwater is provided with a breakwater protective surface structure.
9. A novel subsea pipeline landing structure, according to claim 1, characterized by: and the bottom of one end of the breakwater close to the sea area is provided with leveling broken stones.
10. A novel subsea pipeline landing structure, according to claim 1, characterized by: and the plurality of reserved steel bars are distributed at intervals along the length direction of the reserved groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120228446.5U CN214832342U (en) | 2021-01-27 | 2021-01-27 | Novel submarine pipeline landing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120228446.5U CN214832342U (en) | 2021-01-27 | 2021-01-27 | Novel submarine pipeline landing structure |
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| Publication Number | Publication Date |
|---|---|
| CN214832342U true CN214832342U (en) | 2021-11-23 |
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| CN202120228446.5U Active CN214832342U (en) | 2021-01-27 | 2021-01-27 | Novel submarine pipeline landing structure |
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| CN (1) | CN214832342U (en) |
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2021
- 2021-01-27 CN CN202120228446.5U patent/CN214832342U/en active Active
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