CN117006351A - Topology self-locking sandwich structure, pipeline single ring and seabed explosion-proof pipeline - Google Patents
Topology self-locking sandwich structure, pipeline single ring and seabed explosion-proof pipeline Download PDFInfo
- Publication number
- CN117006351A CN117006351A CN202311265625.6A CN202311265625A CN117006351A CN 117006351 A CN117006351 A CN 117006351A CN 202311265625 A CN202311265625 A CN 202311265625A CN 117006351 A CN117006351 A CN 117006351A
- Authority
- CN
- China
- Prior art keywords
- splicing
- building block
- arc
- pipeline
- block
- Prior art date
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims description 24
- 238000004880 explosion Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 4
- 239000011372 high-strength concrete Substances 0.000 claims description 3
- 238000005267 amalgamation Methods 0.000 abstract description 8
- 230000002146 bilateral effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
Abstract
The invention provides a topological self-locking sandwich structure, a pipeline single ring and a submarine explosion-proof pipeline, and belongs to the technical field of marine pipeline engineering. The topological self-locking sandwich structure comprises a first building block and a second building block which are in a minor arc shape, wherein first splicing surfaces are symmetrically arranged on two opposite sides of the first building block in the circumferential direction of an arc, and second splicing surfaces are symmetrically arranged on two ends of the first building block in the circumferential direction of the arc; the second building block is provided with the third amalgamation face in circular arc circumference direction relative bilateral symmetry, third amalgamation face and first amalgamation face assorted, and the both ends symmetry in circular arc circumference direction of second building block is provided with the fourth amalgamation face. The first block and the second block can be spliced by the first splicing face and the third splicing face or can be spliced by the second splicing face and the fourth splicing face so as to be meshed and fixed in the radial direction of the circular arc. The topological self-locking sandwich structure can effectively improve the local damage tolerance and the whole loading capacity of the submarine pipeline.
Description
Technical Field
The invention relates to the technical field of marine pipeline engineering, in particular to a topological self-locking sandwich structure, a pipeline single ring and a submarine explosion-proof pipeline.
Background
The submarine pipeline can convey substances and information which need long-distance transmission such as oil gas, water, telecommunication and the like from the seabed to land or other places, and has the advantages of large conveying capacity, stability, reliability and the like. Along with the development and utilization of ocean oil and gas resources and the development of ocean communication engineering, the submarine pipeline engineering gradually shows great significance.
In the related art, most of submarine pipelines commonly used at present are prefabricated on land by metal or soft materials with large length (standard length is 12.192 m), and are assembled on the seabed.
The submarine pipeline engineering is easy to be impacted by ship anchors, organisms and the like, and the spliced tubular structure in the related technology has the advantages that as the pipelines are of prefabricated integrated structures, pipeline cracks generated by the pipeline sections of the integral structure can rapidly propagate and develop to the surrounding when the pipeline is subjected to external impact load, so that the integral instability of the structure is damaged. Meanwhile, the submarine pipeline with the integral structure can bear larger shearing force due to poor flexibility when the wave load or stratum subsides unevenly, and is complex in submarine installation and construction environment, once accidents occur, the maintenance of the pipeline is more difficult than on land, and therefore a novel pipeline structure is needed urgently, and the loading capacity of the pipeline on the seabed is improved.
Disclosure of Invention
The embodiment of the invention provides a topological self-locking sandwich structure, a pipeline single ring and a submarine explosion-proof pipeline, which can effectively improve the local damage tolerance and the whole loading capacity of the submarine pipeline. The technical proposal is as follows:
in a first aspect, an embodiment of the present invention provides a topology self-locking sandwich structure, including:
the first building block and the second building block are arc-shaped blocks with minor arcs,
the first building blocks are symmetrically provided with first splicing surfaces on two opposite sides of the circular arc circumference, and the two ends of the first building blocks in the circular arc circumference are symmetrically provided with second splicing surfaces;
third splicing surfaces are symmetrically arranged on two opposite sides of the second building block in the circumferential direction of the circular arc, the third splicing surfaces are matched with the first splicing surfaces, fourth splicing surfaces are symmetrically arranged on two ends of the second building block in the circumferential direction of the circular arc, and the fourth splicing surfaces are matched with the second splicing surfaces;
the topological self-locking sandwich structure is configured such that the first block and the second block can be spliced by the first splicing face and the third splicing face, or can be spliced by the second splicing face and the fourth splicing face in a butt joint manner so as to realize engagement fixation in the radial direction of the first block and the second block.
Optionally, the first split surface is an arc convex surface, and the third split surface is an arc concave surface matched with the first split surface; the second split surface is an arc concave surface, and the fourth split surface is an arc convex surface matched with the second split surface.
Optionally, the first building block includes relative first extrados and first intrados, first amalgamation face with the second amalgamation face all is located first extrados with between the first intrados, the second building block includes relative second extrados and second intrados, third amalgamation face with the fourth amalgamation face all is located between the second extrados and the second intrados, first extrados with the arc radius of second extrados is the same, first intrados with the arc radius of second intrados is the same.
Optionally, the first and second blocks and the high strength concrete block.
In a second aspect, an embodiment of the present invention provides a single ring of a pipeline, including a plurality of the topological self-locking sandwich structures described in the first aspect, where the first blocks and the second blocks in the plurality of topological self-locking sandwich structures are joined together by the second joining surface and the fourth joining surface, so as to achieve mutual engagement and fixation in a circumferential direction of an arc to form a ring structure.
In a third aspect, an embodiment of the present invention further provides a submarine anti-explosion pipeline, including a plurality of the single pipeline rings in the second aspect, where the plurality of single pipeline rings are assembled by staggered joint along an axis direction of the single pipeline rings, between two adjacent single pipeline rings, the submarine anti-explosion pipeline includes a plurality of single pipeline rings as set forth in claim 5, the plurality of single pipeline rings are assembled by staggered joint along an axis direction of the ring body structure to form a pipe body structure, between two adjacent ring body structures, the first block and the adjacent second block are assembled by the first assembling surface and the third assembling surface.
Optionally, the seabed explosion-proof pipeline further comprises two edge positioning rings, two edge positioning rings are arranged, two opposite splicing planes and two limiting installation surfaces are arranged on the axis direction, the limiting installation surfaces are matched with the first splicing surfaces and the third splicing surfaces on one side of the pipeline single ring in the axial direction, and the two edge positioning rings are respectively spliced and fixed at two ends of the pipe body structure in the axis direction through the limiting installation surfaces.
Optionally, the seabed explosion-proof pipeline further comprises a metal pipe body, the metal pipe body comprises a metal outer pipe and a metal inner pipe, the metal outer pipe is sleeved on the outer side of the pipe body structure, and the metal inner pipe is coaxially installed on the inner side of the pipe body structure.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the topological self-locking sandwich structure provided by the embodiment of the invention can be arranged in a submarine pipeline as a stress supporting structure through an interlocking structure formed by the first building block and the second building block, the interlocking contact rings between the first building block and the second building block are buckled, the structure has stronger ductility to the impact load, and the stress resistance is improved while the structure is stable. And even receive great impact load and lead to individual first building block or second building block surface to produce the damage crack, also can not extend to adjacent other first building blocks and second building block on, make things convenient for follow-up to carry out the quick restoration of pertinence, can effectively improve submarine pipeline's local damage tolerance ability and whole bearing capacity.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of the outside of a topological self-locking sandwich structure according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the inner side of a topology self-locking sandwich structure according to an embodiment of the present invention;
fig. 3 is a schematic side view structure of a topological self-locking sandwich structure provided by an embodiment of the invention in a circular arc circumferential direction;
fig. 4 is a schematic perspective view of a single ring of a pipeline according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of a submarine anti-explosion pipeline according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a pipe structure according to an embodiment of the present invention;
FIG. 7 is a schematic perspective view of an edge positioning ring according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a metal pipe body according to an embodiment of the present invention.
In the figure:
1-a first block; 2-a second block; 3-edge positioning rings; 4-a metal tube body; 11-a first split face; 12-a second split surface; 13-a first extrados; 14-a first intrados surface; 15-a first side; 21-a third split surface; 22-fourth split surfaces; 23-a second extrados; 24-a second intrados surface; 25-a second side; 31-split plane; 32-limiting the mounting surface; 41-a metal outer tube; 42-a metal inner tube; 131-a first long side; 132-a first short side; 141-a second short side; 142-a second long side; 231-third short side; 232-third long side; 241-fourth long side; 242-fourth short side; an m-ring structure; n-tube structure.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
In the related art, most of submarine pipelines commonly used at present are prefabricated on land by metal or soft materials with large length (standard length is 12.192 m), and are assembled on the seabed.
The submarine pipeline engineering is easy to be impacted by ship anchors, organisms and the like, and the spliced tubular structure in the related technology has the advantages that as the pipelines are of prefabricated integrated structures, pipeline cracks generated by the pipeline sections of the integral structure can rapidly propagate and develop to the surrounding when the pipeline is subjected to external impact load, so that the integral instability of the structure is damaged. Meanwhile, the submarine pipeline with the integral structure can bear larger shearing force due to poor flexibility when the wave load or stratum subsides unevenly, and is complex in submarine installation and construction environment, once accidents occur, the maintenance of the pipeline is more difficult than on land, and therefore a novel pipeline structure is needed urgently, and the loading capacity of the pipeline on the seabed is improved.
Fig. 1 is a schematic perspective view of the outside of a topology self-locking sandwich structure according to an embodiment of the present invention. Fig. 2 is a schematic perspective view of the inner side of a topology self-locking sandwich structure according to an embodiment of the present invention. Fig. 3 is a schematic side view structure diagram of a topological self-locking sandwich structure in a circular arc circumferential direction, provided by the embodiment of the invention. As shown in fig. 1 to 3, through practice, the embodiment of the present invention provides a topological self-locking type sandwich structure, which comprises a first block 1 and a second block 2, wherein the first block 1 and the second block 2 are arc-shaped blocks with inferior arcs.
The first building block 1 is symmetrically provided with first splicing surfaces 11 on two opposite sides in the circumferential direction of the circular arc, and the first building block 1 is symmetrically provided with second splicing surfaces 12 on two ends in the circumferential direction of the circular arc.
The second building block 2 is provided with third split surfaces 21 symmetrically on two opposite sides in the circular arc circumferential direction, the third split surfaces 21 are matched with the first split surfaces 11, the second building block 2 is provided with fourth split surfaces 22 symmetrically on two ends in the circular arc circumferential direction, and the fourth split surfaces 22 are matched with the second split surfaces 12.
The topological self-locking sandwich structure is configured such that the first block 1 and the second block 2 can be spliced by the first splicing surface 11 and the third splicing surface 21 or by the second splicing surface 12 and the fourth splicing surface 22 so as to realize the snap fixation in the radial direction of the bodies of the first block 1 and the second block 2.
In the embodiment of the invention, the topological self-locking type sandwich structure is formed into a minimum combined unit structure by a first building block 1 and a second building block 2 with certain differences in appearance. Wherein, the first building block 1 and the second building block 2 are arc blocks with six faces. Specifically, the first block 1 comprises a first outer cambered surface 13 and a first inner cambered surface 14 which are opposite, the first splicing surface 11 and the second splicing surface 12 are both positioned between the first outer cambered surface 13 and the first inner cambered surface 14, the second block 2 comprises a second outer cambered surface 23 and a second inner cambered surface 24 which are opposite, the third splicing surface 21 and the fourth splicing surface 22 are both positioned between the second outer cambered surface 23 and the second inner cambered surface 24, the arc radiuses of the first outer cambered surface 13 and the second outer cambered surface 23 are the same, and the arc radiuses of the first inner cambered surface 14 and the second inner cambered surface 24 are the same. In the thickness direction, that is, in the radial direction of the arc where the two are located, the first extrados 13 and the first intrados 14, and the second extrados 23 and the second intrados 24 are parallel and have the same pitch.
Illustratively, the first extrados 13 and the first intrados 14 are each in an arc shape, the first extrados 13 has two opposite first long sides 131 on both sides in the arc direction of the first block 1, and two opposite first short sides 132 on both sides in the arc direction. And the first intrados 14 has two opposite second short sides 141 at both sides of the first block 1 in the circular arc direction and two opposite second long sides 142 at both ends of the first block in the circular arc direction. The first long side 131 and the second short side 141 are connected by two first side edges 15 to form a first split surface 11, and the first short side 132 and the second long side 142 are connected by two first side edges 15 to form a second split surface 12;
correspondingly, the second outer cambered surface 23 and the second inner cambered surface 24 are arc-shaped, two opposite third short sides 231 are arranged on two sides of the second outer cambered surface 23 in the arc direction of the second building block 2, and two opposite third long sides 232 are arranged on two ends of the second outer cambered surface in the arc direction; the second intrados surface 24 has two opposite fourth long sides 241 on both sides in the circular arc direction of the second block 2 and two opposite fourth short sides 242 on both sides in the circular arc direction. The third short side 231 and the fourth long side 241 are connected by two second sides 25 to form the third split surface 21, and the third long side 232 and the fourth short side 242 are connected by two second sides 25 to form the fourth split surface 22.
In the combining of the first block 1 and the second block 2, the first block 1 can be butt-jointed with the third joint surfaces 21 of the two second blocks 2 respectively by the first joint surfaces 11 provided on the opposite sides thereof in the circular arc circumferential direction, and mutually-jointed with the fourth joint surfaces 22 of the other two second blocks 2 respectively by the second joint surfaces 12 provided on the opposite ends thereof in the circular arc circumferential direction. In the first block 1 and the second block 2 which are spliced with each other, the first short side 132 on the first extrados 13 is connected with the third long side 232 on the second extrados 23 and is smooth and excessive, and the second long side 142 on the first intrados 14 is connected with the third short side 231 on the second intrados 24 and is smooth and excessive. In the spliced topological self-locking sandwich structure, two sides of each first building block 1 in the circumferential direction of the circular arc and two ends in the circumferential direction of the circular arc can be respectively engaged with four second building blocks 2 to form a topological self-locking structure; or, each second block 2 can be respectively engaged with four first blocks 1 at two sides in the circumferential direction of the circular arc and at two ends in the circumferential direction of the circular arc to form a topological self-locking structure so as to realize engagement fixation in the radial direction of the circular arc, and the topological self-locking sandwich structure can be arranged in a submarine pipeline to serve as a stress supporting structure, and supports the outer pipe wall of the pipeline through the first extrados 13 and the second extrados 23 and supports the inner pipe arm of the pipeline through the first intrados 14 and the second intrados 24. The interlocking contact rings between the first building block 1 and the second building block 2 are buckled, so that the interlocking contact rings have stronger ductility to the impact load, and the stress-resistant capacity is improved while the structure is stable. And even receive great impact load and lead to individual first building block 1 or second building block 2 surface to produce the damage crack, also can not extend to on other adjacent first building block 1 and the second building block 2, make things convenient for follow-up to carry out the pointed quick repair, can effectively improve submarine pipeline's local damage tolerance ability and whole bearing capacity.
Optionally, the first split surface 11 is an arc convex surface, and the third split surface 21 is an arc concave surface matched with the first split surface 11; the second split surface 12 is an arc concave surface, and the fourth split surface 22 is an arc convex surface matched with the second split surface 12. Illustratively, in the embodiment of the present invention, by setting the first split surface 11, the second split surface 12, the third split surface 21 and the fourth split surface 22 as corresponding arc concave-convex results, the contact area after mutual split can be further improved, the split stability and the bearing capacity to stress are increased, and the local damage tolerance capacity and the overall bearing capacity of the submarine pipeline are ensured.
Optionally, the first block 1 and the second block 2 and the high strength concrete block. In the embodiment of the invention, the first building block 1 and the second building block 2 adopt concrete with the strength grade of more than C60, and have the advantages of high compressive strength, strong deformation resistance, high density, low porosity and the like, and can effectively improve the service life and the loading capacity of the topological self-locking sandwich structure.
Fig. 4 is a schematic perspective view of a single ring of a pipeline according to an embodiment of the present invention. As shown in fig. 4, the embodiment of the present invention further provides a single ring of a pipeline, which includes a plurality of topological self-locking sandwich structures as shown in fig. 1 to 3, and the first building block 1 and the second building block 2 in the plurality of topological self-locking sandwich structures are spliced by the second splicing surface 12 and the fourth splicing surface 22, so as to achieve mutual engagement and fixation in the circumferential direction of an arc to form a ring body structure m. In the embodiment of the present invention, when the minimum units of the first blocks 1 and the second blocks 2 are combined, the minimum units can be sequentially combined along the circumferential direction of the circular arc to form a first outer arc surface 13 and a second outer arc surface 23 as outer rings, the ring body structure m of the inner ring 24 positions of the first inner arc surface 14 and the second inner arc surface can realize self-locking between the first blocks 1 and the second blocks 2 in the radial direction of the circular arc, and stable combination and supporting structure can be realized without arranging additional fixing elements such as bolts at the combined position, so that the structure is simple and the practicability is high.
Fig. 5 is a schematic perspective view of a submarine anti-explosion pipeline according to an embodiment of the present invention. Fig. 6 is a schematic perspective view of a pipe structure according to an embodiment of the present invention. Fig. 7 is a schematic perspective view of an edge positioning ring according to an embodiment of the present invention. Fig. 8 is a schematic structural view of a metal pipe body according to an embodiment of the present invention. As shown in fig. 5 to 8, the embodiment of the present invention further provides a submarine explosion-proof pipeline, which includes a plurality of single rings of the pipeline shown in fig. 4, wherein the single rings of the pipeline are assembled by staggered joint along the axial direction of the ring structures m to form a pipe body structure n, and between two adjacent ring structures m, the first building block 1 and the second building block 2 are assembled by the first assembling surface 11 and the third assembling surface 21. In the embodiment of the present invention, after the combination of the ring structures m of the single rings of the plurality of pipes is completed, the ring structures m may be coaxially arranged along the axis direction, that is, the trend of the seabed explosion-proof tunnel, and after a certain angle adjustment is performed between two adjacent ring structures m around the axis, the two adjacent ring structures m are subjected to staggered joint splicing, and between the two adjacent ring structures m, the first building block 1 and the second building block 2 are subjected to involution splicing through the first splicing surface 11 and the third splicing surface 21, so as to form the pipe body structure n with the specified length. The pipe body single rings combined by the topological self-locking sandwich structure provided by the embodiment of the invention form the submarine anti-explosion pipeline, the pipe body structure n of the submarine anti-explosion pipeline can be arranged in the submarine pipeline and used as a stress supporting structure, the outer pipe wall of the pipeline is supported by the first outer cambered surface 13 and the second outer cambered surface 23, and the inner pipe arm of the pipeline is supported by the first inner cambered surface 14 and the second inner cambered surface 24. The interlocking contact rings between the first building block 1 and the second building block 2 are buckled, so that the interlocking contact rings have stronger ductility to the impact load, and the stress-resistant capacity is improved while the structure is stable. And even receive great impact load and lead to individual first building block 1 or second building block 2 surface to produce the damage crack, also can not extend to on other adjacent first building block 1 and the second building block 2, make things convenient for follow-up to carry out the pointed quick repair, can effectively improve submarine pipeline's local damage tolerance ability and whole bearing capacity.
Optionally, the submarine explosion-proof pipeline further comprises two edge positioning rings 3, the two edge positioning rings 3 are provided with opposite splicing planes 31 and limiting installation surfaces 32 in the axis direction, the limiting installation surfaces 32 are matched with a plurality of first splicing surfaces 11 and a plurality of third splicing surfaces 21 on one side of a pipeline single ring in the axial direction, and the two edge positioning rings 3 are respectively spliced and fixed at two ends of the pipeline body structure n in the axis direction through the limiting installation surfaces 32. Illustratively, in the embodiment of the present invention, after the combination of the pipe body structure n is completed, the two ends in the axial direction thereof are both irregular structures formed by combining the plurality of first split surfaces 11 and the plurality of third split surfaces 21, which is not beneficial to conveying and butting after the preparation of the single-section pipe body structure n. Therefore, by arranging the edge positioning rings 3 at the two ends of the pipe body structure n respectively, the matched limit mounting surfaces 32 are utilized to perform involution and fixed connection on the end faces formed by the combination of the first splicing surfaces 11 and the third splicing surfaces 21, so that the clamping and positioning of the two ends of the pipe body structure n are realized, the stability of the whole structure is improved, and the splicing plane 31 at the other end can be used as a corresponding surface for lifting and butt joint. Clamping of various mounting hole adaptation conveying equipment and abutting structures among the seabed explosion-proof pipelines of different paragraphs can be processed on the splicing plane 31, and the practicability of the seabed explosion-proof pipeline is further improved.
Optionally, the submarine anti-explosion pipeline further comprises a metal pipe body 4, the metal pipe body 4 comprises a metal outer pipe 41 and a metal inner pipe 42, the metal outer pipe 41 is sleeved on the outer side of the pipe body structure n, and the metal inner pipe 42 is coaxially installed on the inner side of the pipe body structure n. Illustratively, in the embodiment of the invention, the inner and outer pipe structures of the metal pipe body 4 are supported by coating the inner and outer pipe bodies 4 of the pipe body structure n and utilizing the pipe body structure n formed by the topological self-locking sandwich structure as a sandwich layer, so that the local damage tolerance and the overall loading capacity of the submarine pipeline are improved.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are intended to be inclusive of the elements or items listed thereafter as "comprising" or "comprising", and not to exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the invention, but rather, the invention is to be construed as limited to the appended claims.
Claims (8)
1. A topological self-locking sandwich structure, comprising: the first building block (1) and the second building block (2), the first building block (1) and the second building block (2) are arc-shaped blocks with minor arcs,
the two opposite sides of the first building block (1) in the circumferential direction of the circular arc are symmetrically provided with first splicing surfaces (11), and the two ends of the first building block (1) in the circumferential direction of the circular arc are symmetrically provided with second splicing surfaces (12);
third splicing surfaces (21) are symmetrically arranged on two opposite sides of the second building block (2) in the circumferential direction of the circular arc, the third splicing surfaces (21) are matched with the first splicing surfaces (11), fourth splicing surfaces (22) are symmetrically arranged on two ends of the second building block (2) in the circumferential direction of the circular arc, and the fourth splicing surfaces (22) are matched with the second splicing surfaces (12);
the topological self-locking sandwich structure is configured in such a way that the first building block (1) and the second building block (2) can be spliced by the first splicing surface (11) and the third splicing surface (21) or by the second splicing surface (12) and the fourth splicing surface (22) so as to realize meshed fixation in the radial direction of the bodies of the first building block (1) and the second building block (2).
2. The topological self-locking sandwich structure according to claim 1, characterized in that the first split surface (11) is an arc-shaped convex surface, and the third split surface (21) is an arc-shaped concave surface matched with the first split surface (11); the second split surface (12) is an arc-shaped concave surface, and the fourth split surface (22) is an arc-shaped convex surface matched with the second split surface (12).
3. The topological self-locking sandwich structure according to claim 2, wherein the first building block (1) comprises a first opposite outer arc surface (13) and a first inner arc surface (14), the first split surface (11) and the second split surface (12) are both positioned between the first outer arc surface (13) and the first inner arc surface (14), the second building block (2) comprises a second opposite outer arc surface (23) and a second inner arc surface (24), the third split surface (21) and the fourth split surface (22) are both positioned between the second outer arc surface (23) and the second inner arc surface (24), the arc radii of the first outer arc surface (13) and the second outer arc surface (23) are the same, and the arc radii of the first inner arc surface (14) and the second inner arc surface (24) are the same.
4. The topological self-locking sandwich structure according to claim 1, characterized in that the first block (1) and the second block (2) and the high-strength concrete block.
5. A single pipe ring, characterized in that the single pipe ring comprises a plurality of topological self-locking sandwich structures as claimed in any one of claims 1 to 4, wherein the first building blocks (1) and the second building blocks (2) in the plurality of topological self-locking sandwich structures are spliced by the second splicing surface (12) and the fourth splicing surface (22) in a butt joint manner so as to realize mutual meshed fixation in the circular arc circumferential direction to form a ring body structure (m).
6. A submarine anti-explosion pipeline, characterized in that the submarine anti-explosion pipeline comprises a plurality of pipeline single rings as claimed in claim 5, the pipeline single rings are assembled in a staggered manner along the axial direction of the ring body structure (m) to form a pipe body structure (n), and between two adjacent ring body structures (m), the first building block (1) and the second building block (2) are spliced in a butt joint manner through the first splicing surface (11) and the third splicing surface (21).
7. The submarine anti-explosion pipeline according to claim 6, further comprising edge positioning rings (3), wherein the two edge positioning rings (3) are arranged and provided with opposite splicing planes (31) and limiting installation surfaces (32) in the axial direction, the limiting installation surfaces (32) are matched with the first splicing surfaces (11) and the third splicing surfaces (21) on one side of the pipeline single ring in the axial direction, and the two edge positioning rings (3) are respectively spliced and fixed at two ends of the pipeline body structure (n) in the axial direction through the limiting installation surfaces (32).
8. The subsea anti-explosion pipeline according to claim 7, characterized in that the subsea anti-explosion pipeline further comprises a metal pipe body (4), the metal pipe body (4) comprises a metal outer pipe (41) and a metal inner pipe (42), the metal outer pipe (41) is sleeved outside the pipe body structure (n), and the metal inner pipe (42) is coaxially mounted inside the pipe body structure (n).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311265625.6A CN117006351B (en) | 2023-09-28 | 2023-09-28 | Topology self-locking sandwich structure, pipeline single ring and seabed explosion-proof pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311265625.6A CN117006351B (en) | 2023-09-28 | 2023-09-28 | Topology self-locking sandwich structure, pipeline single ring and seabed explosion-proof pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117006351A true CN117006351A (en) | 2023-11-07 |
| CN117006351B CN117006351B (en) | 2024-01-30 |
Family
ID=88572977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311265625.6A Active CN117006351B (en) | 2023-09-28 | 2023-09-28 | Topology self-locking sandwich structure, pipeline single ring and seabed explosion-proof pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117006351B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202660064U (en) * | 2012-06-27 | 2013-01-09 | 中国舰船研究设计中心 | Tunable vibration absorbing device for pipelines |
| CN107061879A (en) * | 2017-04-25 | 2017-08-18 | 北京化工大学 | A kind of unit-combination type large pipe structure and manufacture method |
| CN210510754U (en) * | 2019-07-12 | 2020-05-12 | 潍坊宏图环保设备有限公司 | Pipeline adopting anti-drop lining |
| CN112284191A (en) * | 2020-10-29 | 2021-01-29 | 武汉理工大学 | Composite target plate structure |
| CN116537822A (en) * | 2023-04-27 | 2023-08-04 | 武汉理工大学 | Topological self-locking shield tunnel segment, segment ring structure and tunnel |
| CN116623866A (en) * | 2023-07-24 | 2023-08-22 | 武汉理工大学三亚科教创新园 | Topological interlocking type building block, sound insulation wall and assembling method |
-
2023
- 2023-09-28 CN CN202311265625.6A patent/CN117006351B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202660064U (en) * | 2012-06-27 | 2013-01-09 | 中国舰船研究设计中心 | Tunable vibration absorbing device for pipelines |
| CN107061879A (en) * | 2017-04-25 | 2017-08-18 | 北京化工大学 | A kind of unit-combination type large pipe structure and manufacture method |
| CN210510754U (en) * | 2019-07-12 | 2020-05-12 | 潍坊宏图环保设备有限公司 | Pipeline adopting anti-drop lining |
| CN112284191A (en) * | 2020-10-29 | 2021-01-29 | 武汉理工大学 | Composite target plate structure |
| CN116537822A (en) * | 2023-04-27 | 2023-08-04 | 武汉理工大学 | Topological self-locking shield tunnel segment, segment ring structure and tunnel |
| CN116623866A (en) * | 2023-07-24 | 2023-08-22 | 武汉理工大学三亚科教创新园 | Topological interlocking type building block, sound insulation wall and assembling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117006351B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7722088B2 (en) | Light and reinforced undersea coaxial pipe element | |
| US7793992B2 (en) | Junction part for coaxial pipe elements, and a method of joining together coaxial pipe elements | |
| WO2023151236A1 (en) | Tube joint apparatus for double-tube floating tunnel, and construction method thereof | |
| CN117006351B (en) | Topology self-locking sandwich structure, pipeline single ring and seabed explosion-proof pipeline | |
| KR20050033535A (en) | Connector for structural sandwich plate members | |
| US8348552B2 (en) | Floating support comprising a device for the retention and securing of a subsea pipe | |
| US6349976B1 (en) | Pipe in pipe assembly | |
| CN116537822A (en) | Topological self-locking shield tunnel segment, segment ring structure and tunnel | |
| CN108638591B (en) | Carbon steel-concrete/cement mortar-stainless steel composite submarine pipeline | |
| CN110106916A (en) | A kind of pipeline mounting construction method in piping lane | |
| US11448192B2 (en) | Support structure for a wind turbine | |
| CN112815159B (en) | Special-shaped section bar, framework layer and marine composite hose containing framework layer | |
| CN113006143B (en) | Suspension tunnel tube joint structure | |
| CN107763324B (en) | Steel corrugated pipe spliced by inner and outer layer buckling method | |
| US7513538B1 (en) | Device for connecting two metal pipes | |
| KR101893994B1 (en) | Corrugated steel pipe | |
| CN209850152U (en) | Titanium steel composite pipe welding structure | |
| JP7284863B1 (en) | Jacket structure for offshore wind turbine and welding method for jacket structure for offshore wind turbine | |
| CN218818892U (en) | End enclosure structure for large-scale steel branch pipe hydrostatic test | |
| CN217713885U (en) | Corrosion-resistant steel pipe joint of jacking pipe | |
| CN220228079U (en) | Backpack pipe clamp for connecting submarine sub-pipe and main pipe | |
| CN211039952U (en) | Seamless steel pipe with good sealing performance | |
| CN215634715U (en) | Inhaul cable with high-temperature-resistant protection structure | |
| CN215444087U (en) | Waterproof structure for joint of pipe-jacking tunnel pipe joint | |
| CN216615450U (en) | Forked steel box arch rib |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |