CN215715449U - Offshore single-pile sludge in-situ curing structure - Google Patents
Offshore single-pile sludge in-situ curing structure Download PDFInfo
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- CN215715449U CN215715449U CN202120594227.9U CN202120594227U CN215715449U CN 215715449 U CN215715449 U CN 215715449U CN 202120594227 U CN202120594227 U CN 202120594227U CN 215715449 U CN215715449 U CN 215715449U
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Abstract
The utility model provides an offshore single-pile sludge in-situ curing structure, which comprises: the number of the solidified pile groups from the first circle to the Nth circle is more than or equal to 2; each circle of solidified pile group surrounds the periphery of the pile foundation of the single pile, the first circle of solidified pile group is arranged around the single pile, the second circle of solidified pile group is arranged around the first circle of solidified pile group, and the rest is done in the same way, and the Nth circle of solidified pile group is arranged around the (N-1) th circle of solidified pile group; the heights of the corresponding curing piles in the first to Nth circles of curing pile groups are reduced in sequence. The first circle of solidified pile group mainly plays a role in preventing scouring and ensuring the stability of an anti-scouring structure, and the second circle to the Nth circle of solidified pile group mainly play a role in preventing scouring.
Description
Technical Field
The utility model relates to the field of offshore wind power pile foundation reinforcement, in particular to an offshore single-pile sludge in-situ curing structure.
Background
The main structure of the offshore wind power engineering is influenced by natural conditions such as tide, stormy waves and the like, so that the safety of the main structure of the offshore wind power engineering, particularly the safety of a pile foundation structure, is more and more prominent. Therefore, in recent years, protection of the pile foundation of the deep pit which is flushed from the wind power foundation and anti-scouring protection of the pile foundation of the newly-built offshore wind power project become one of important contents which are concerned by the industry.
For erosion protection of a main structure of offshore wind power engineering, the conventional method is to throw broken stones and rock water around a pile foundation of a single pile to form an erosion protection layer of a single-pile fan. On one hand, due to the fact that physical and mechanical properties of a surface soil body around the single pile are poor, after broken stones and rock blocks are filled, along with the increase of upper loads, the settlement of a mud surface is large, the filling amount of a formed designed section cannot be determined, and investment cost is high. On the other hand, the sinking path of the rock blocks cannot be controlled under the action of water flow, the rock blocks easily impact the single pile of the fan, an anticorrosive coating of the pile foundation is damaged, and the service life of the pile foundation is influenced.
After the offshore single-pile fan foundation is sunk, water flow which is higher in speed than that before the pile is sunk is formed at the periphery of the pile foundation, and the erosion and deposition evolution of the original seabed is greatly influenced. Therefore, the offshore wind turbine foundation needs to be protected against scouring, the wind turbine foundation is prevented from being scoured, and the safety and normal operation of the offshore wind turbine are ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an offshore single-pile sludge in-situ curing structure, which has a large sludge curing depth selection range, can reach the construction depth of 20m-30m, and can be used for curing construction before or after single-pile sinking.
The technical scheme for realizing the purpose of the utility model is as follows:
an offshore mono-pile sludge in-situ solidification structure, comprising: the number of the solidified pile groups from the first circle to the Nth circle is more than or equal to 2;
the first circle of solidified pile group is arranged around the single pile, the second circle of solidified pile group is arranged around the first circle of solidified pile group, and the like, and the Nth circle of solidified pile group is arranged around the (N-1) th circle of solidified pile group;
the heights of the corresponding curing piles in the first to Nth circles of curing pile groups are reduced in sequence.
The first circle of solidified pile group mainly plays a role in preventing scouring and ensuring the stability of an anti-scouring structure, and the second circle to the Nth circle of solidified pile group mainly play a role in preventing scouring.
As a further improvement of the utility model, a gap is formed between the first circle of solidified pile group and the single pile, and the gap is filled with a reinforcing layer;
the thickness of the reinforcing layer is smaller than the height of the solidified piles of the first circle of solidified pile group.
The gaps between the single piles and the solidified piles of the fan are filled and reinforced by increasing pressure, and the solidified earthwork amount of the single pile is 1500m 3.
As a further improvement of the utility model, the first circle of solidified pile group consists of a plurality of first solidified piles, and so on, and the Nth circle of solidified pile group consists of a plurality of Nth solidified piles;
the pile shapes of the first to the Nth solidified piles are square.
The utility model adopts square piles, and compared with circular piles, the square piles have large external surface area and are easier to realize the embedment of adjacent square piles.
As a further improvement of the utility model, the pile shapes of the first to the Nth solidified piles are all square;
the first curing piles are fixedly arranged around the pile foundation, the second curing piles are fixedly arranged around the first curing piles, the first curing piles and the second curing piles are embedded and fixed into a whole, and the first curing piles and the second curing piles form a first circle of curing structure around the pile foundation;
the second curing piles are divided into two groups, the first group of second curing piles are fixedly arranged around the periphery of the first circle of curing pile group, the second group of second curing piles are fixedly arranged around the periphery of the first group of second curing piles, the first group of second curing piles and the second group of second curing piles are embedded and fixed into a whole, and the first group of second curing piles and the second group of second curing piles form a second circle of curing structure around the first circle of curing pile group together;
by analogy, the plurality of Nth curing piles are divided into two groups, the first group of Nth curing piles are fixedly arranged around the Nth-1 th ring of curing pile groups, the second group of Nth curing piles are fixedly arranged around the first group of Nth curing piles, the first group of Nth curing piles and the second group of Nth curing piles are embedded and fixed into a whole, and the first group of Nth curing piles and the second group of Nth curing piles jointly form an Nth ring of curing structure around the Nth-1 th ring of curing pile groups.
As a further improvement of the utility model, the method also comprises the following steps: the (N + 1) th solidified pile group comprises a plurality of (N + 1) th solidified piles, and the (N + 1) th solidified piles are divided into two groups;
the first group of (N + 1) th curing piles and the second group of (N + 1) th curing piles are embedded and fixed in two opposite directions of the Nth curing structure.
As a further improvement of the utility model, the surfaces of the adjacent first curing piles are spliced, the surfaces of a plurality of first curing piles in the same direction are sequentially spliced to form one side of a first circle of curing structure, and the surfaces of the adjacent 2 first curing piles in different directions are spliced to form one corner of the first circle of curing structure;
splicing the surfaces of the adjacent second curing piles, sequentially splicing the surfaces of the plurality of second curing piles in the same direction to form one edge of a second circle of curing structure, and splicing the surfaces of the adjacent 2 second curing piles in different directions to form one corner of the second circle of curing structure;
by analogy, the surfaces of the adjacent Nth curing piles are spliced, the surfaces of the multiple Nth curing piles in the same direction are sequentially spliced to form one edge of the Nth ring curing structure, and the surfaces of the adjacent 2 Nth curing piles in different directions are spliced to form one corner of the Nth ring curing structure.
As a further improvement of the utility model, the pile heights of the first to the Nth solidified piles are reduced in sequence.
As a further improvement of the utility model, the raw material of the first to the Nth curing piles is concrete, and a curing agent is added into the concrete.
As a further improvement of the utility model, a consolidation layer is formed between adjacent solidified piles, and the thickness of the consolidation layer is at least 10 cm.
Compared with the prior art, the utility model has the beneficial effects that:
1. the sludge curing depth of the utility model has a wide selection range, the construction depth can reach 20m-30m, and the curing construction can be carried out before or after the single pile is sunk.
2. The first circle of solidified pile group mainly plays a role in preventing scouring and ensuring the stability of an anti-scouring structure, and the second circle to the Nth circle of solidified pile group mainly play a role in preventing scouring.
3. The gaps between the single piles and the solidified piles of the fan are filled and reinforced by increasing pressure, and the solidified earthwork amount of the single pile is 1500m 3.
4. The utility model adopts square piles, and compared with circular piles, the square piles have large external surface area and are easier to realize the embedment of adjacent square piles.
Drawings
FIG. 1 is a schematic diagram of an offshore single pile sludge in-situ solidification structure;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic diagram illustrating a construction process of the first to third circles of the solidified pile group;
in the figure, 100-offshore single-pile sludge in-situ curing structure; 110-a first ring of cured pile groups; 120-second circle of cured pile groups; 130-third circle of curing pile group; 200. single pile; 300. a water surface; 10-curing the pile; 11-a first cured pile; 12-a second cured pile; 13-third cured pile; 20-reinforcing layer.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the utility model, the meaning of "a plurality" is two or more unless otherwise specified.
The embodiment of the utility model provides an offshore single-pile sludge in-situ curing structure, which comprises: the number of the solidified pile groups from the first circle to the Nth circle is more than or equal to 2; each circle of solidified pile group surrounds the periphery of the pile foundation of the single pile, the first circle of solidified pile group is arranged around the single pile, the second circle of solidified pile group is arranged around the first circle of solidified pile group, and the rest is done in the same way, and the Nth circle of solidified pile group is arranged around the (N-1) th circle of solidified pile group; the heights of the corresponding curing piles in the first to Nth circles of curing pile groups are reduced in sequence.
The first circle of solidified pile group mainly plays a role in preventing scouring and ensuring the stability of an anti-scouring structure, and the second circle to the Nth circle of solidified pile group mainly play a role in preventing scouring.
Referring to fig. 1 and 3, the offshore mono-pile sludge in-situ solidification structure 100 shown in fig. 1 and 3 comprises: a first ring of solidified pile groups 110, a second ring of solidified pile groups 120 and a third ring of solidified pile groups 130; a first ring of the cured pile sets 110 is disposed around the mono-pile 200, a second ring of the cured pile sets 120 is disposed around the first ring of the cured pile sets 110, and a third ring of the cured pile sets 130 is disposed around the second ring of the cured pile sets 120. Referring to fig. 2, the heights of the corresponding curing piles in the first to third circles of curing pile groups 130 are sequentially decreased.
Referring to fig. 2, a gap is formed between the first ring of solidified pile groups 110 and the mono-pile 200, and the gap is filled with the reinforcing layer 20; the thickness of the reinforcing layer 20 is smaller than the height of the cured piles of the first ring of cured pile groups 110. The gaps between the single piles and the solidified piles of the fan are filled and reinforced by increasing pressure, and the solidified earthwork amount of the single pile is 1500m 3.
In the embodiment of the utility model, the first circle of solidified pile group consists of a plurality of first solidified piles, and so on, and the Nth circle of solidified pile group consists of a plurality of Nth solidified piles; the pile shapes of the first to the Nth solidified piles are square. Referring to fig. 1 and 3, the first ring of solidified pile groups 110 is composed of a plurality of first solidified piles 11, the second ring of solidified pile groups 120 is composed of a plurality of second solidified piles 12, and the third ring of solidified pile groups 130 is composed of a plurality of third solidified piles 13.
The utility model adopts square piles, and compared with circular piles, the square piles have large external surface area and are easier to realize the embedment of adjacent square piles. The embedding of the embodiment of the utility model is to form an embedding layer between adjacent solidified piles, and the thickness of the embedding layer is at least 10 cm.
Before preferable construction, a soil sample is taken on site, three different parameters of 8%, 10% and 12% of curing agent are obtained according to a JGJ/T233-plus 2011 indoor mix proportion test in cement-soil mix proportion design rule, and 28d unconfined compressive strengths are respectively 0.54MP, 0.61MP and 0.82 MP.
The pile shapes of the first to the Nth solidified piles in the embodiment of the utility model are all square; the first curing piles are fixedly arranged around the pile foundation, the second curing piles are fixedly arranged around the first curing piles, the first curing piles and the second curing piles are embedded and fixed into a whole, and the first curing piles and the second curing piles form a first circle of curing structure around the pile foundation; the second curing piles are divided into two groups, the first group of second curing piles are fixedly arranged around the periphery of the first circle of curing pile group, the second group of second curing piles are fixedly arranged around the periphery of the first group of second curing piles, the first group of second curing piles and the second group of second curing piles are embedded and fixed into a whole, and the first group of second curing piles and the second group of second curing piles form a second circle of curing structure around the first circle of curing pile group together; by analogy, the plurality of Nth curing piles are divided into two groups, the first group of Nth curing piles are fixedly arranged around the Nth-1 th ring of curing pile groups, the second group of Nth curing piles are fixedly arranged around the first group of Nth curing piles, the first group of Nth curing piles and the second group of Nth curing piles are embedded and fixed into a whole, and the first group of Nth curing piles and the second group of Nth curing piles jointly form an Nth ring of curing structure around the Nth-1 th ring of curing pile groups.
Referring to fig. 1 and 3, the shapes of the first solidified pile 11, the second solidified pile 12 and the third solidified pile 13 are all square; the first curing piles 11 are divided into two groups, the first group of first curing piles 11 are fixedly arranged around the periphery of the pile foundation, the second group of first curing piles 11 are fixedly arranged around the periphery of the first group of first curing piles 11, the first group of first curing piles 11 and the second group of first curing piles 11 are embedded and fixed into a whole, and the first group of first curing piles 11 and the second group of first curing piles 11 form a first circle of curing structure around the pile foundation together; the second curing piles 12 are divided into two groups, the first group of second curing piles 12 are fixedly arranged around the periphery of the first ring of curing piles 110, the second group of second curing piles 12 are fixedly arranged around the periphery of the first group of second curing piles 12, the first group of second curing piles 12 and the second group of second curing piles 12 are embedded and fixed into a whole, and the first group of second curing piles 12 and the second group of second curing piles 12 jointly form a second ring of curing structure around the first ring of curing piles 110; the third curing piles 13 are divided into two groups, the first group of third curing piles 13 are fixedly arranged around the periphery of the second ring curing pile group 120, the second group of third curing piles 13 are fixedly arranged around the periphery of the first group of third curing piles 13, the first group of third curing piles 13 and the second group of third curing piles 13 are embedded and fixed into a whole, and the first group of third curing piles 13 and the second group of third curing piles 13 jointly form a third ring curing structure around the second ring curing pile group 120
In order to prevent scouring to the maximum extent, in the embodiment of the utility model, the offshore single-pile sludge in-situ curing structure comprises an (N + 1) th curing pile group besides the first to the nth circles of curing pile groups, wherein the (N + 1) th curing pile group comprises a plurality of (N + 1) th curing piles, and the (N + 1) th curing piles are divided into two groups; the first group of (N + 1) th curing piles and the second group of (N + 1) th curing piles are embedded and fixed in two opposite directions of the Nth curing structure.
In the embodiment of the present invention, referring to fig. 1 and fig. 3, the surfaces of adjacent first curing piles 11 are spliced, the surfaces of a plurality of first curing piles 11 in the same direction are sequentially spliced to form an edge of a first ring of curing structures, and the surfaces of adjacent 2 first curing piles 11 in different directions are spliced to form a corner of the first ring of curing structures; splicing the surfaces of the adjacent second curing piles 12, sequentially splicing the surfaces of the plurality of second curing piles 12 in the same direction to form one edge of a second circle of curing structure, and splicing the surfaces of the adjacent 2 second curing piles 12 in different directions to form one corner of the second circle of curing structure; by analogy, the surfaces of the adjacent Nth curing piles are spliced, the surfaces of the multiple Nth curing piles in the same direction are sequentially spliced to form one edge of the Nth ring curing structure, and the surfaces of the adjacent 2 Nth curing piles in different directions are spliced to form one corner of the Nth ring curing structure.
The pile heights of the first to the Nth solidified piles are reduced in sequence. Referring to fig. 2, the pile heights of the first curing pile 11, the second curing pile 12 and the third curing pile 13 are sequentially reduced. The raw materials of the first to the Nth curing piles are concrete, and a curing agent is added into the concrete.
The sludge curing depth selection range of the embodiment of the utility model is wide, the construction depth can reach 20m-30m, and the curing construction can be carried out before or after the single pile is sunk. The square piles are adopted in the embodiment of the utility model, and compared with the circular piles, the square piles have large external surface area, and the embedding and the fixing of the adjacent square piles are easier to realize.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. An offshore single-pile sludge in-situ curing structure, comprising: the number of the solidified pile groups from the first circle to the Nth circle is more than or equal to 2;
the first circle of solidified pile group is arranged around the single pile, the second circle of solidified pile group is arranged around the first circle of solidified pile group, and the like, and the Nth circle of solidified pile group is arranged around the (N-1) th circle of solidified pile group;
the heights of the corresponding curing piles in the first to Nth circles of curing pile groups are reduced in sequence.
2. The offshore single pile sludge in-situ curing structure of claim 1, wherein a gap is formed between the first ring of curing pile groups and the single pile, and the gap is filled with a reinforcing layer;
the thickness of the reinforcing layer is smaller than the height of the solidified piles of the first circle of solidified pile group.
3. The offshore single pile sludge in-situ curing structure as claimed in claim 1 or 2, wherein the first ring of curing pile groups consists of a plurality of first curing piles, and so on, and the Nth ring of curing pile groups consists of a plurality of Nth curing piles;
the pile shapes of the first to the Nth solidified piles are square.
4. The offshore single pile sludge in-situ solidification structure of claim 3, wherein the pile shapes of the first to the Nth solidification piles are square;
the first curing piles are fixedly arranged around the pile foundation, the second curing piles are fixedly arranged around the first curing piles, the first curing piles and the second curing piles are embedded and fixed into a whole, and the first curing piles and the second curing piles form a first circle of curing structure around the pile foundation;
the second curing piles are divided into two groups, the first group of second curing piles are fixedly arranged around the periphery of the first circle of curing pile group, the second group of second curing piles are fixedly arranged around the periphery of the first group of second curing piles, the first group of second curing piles and the second group of second curing piles are embedded and fixed into a whole, and the first group of second curing piles and the second group of second curing piles form a second circle of curing structure around the first circle of curing pile group together;
by analogy, the plurality of Nth curing piles are divided into two groups, the first group of Nth curing piles are fixedly arranged around the Nth-1 th ring of curing pile groups, the second group of Nth curing piles are fixedly arranged around the first group of Nth curing piles, the first group of Nth curing piles and the second group of Nth curing piles are embedded and fixed into a whole, and the first group of Nth curing piles and the second group of Nth curing piles jointly form an Nth ring of curing structure around the Nth-1 th ring of curing pile groups.
5. The offshore mono pile sludge in situ solidification structure of claim 4, further comprising: the (N + 1) th solidified pile group comprises a plurality of (N + 1) th solidified piles, and the (N + 1) th solidified piles are divided into two groups;
the first group of (N + 1) th curing piles and the second group of (N + 1) th curing piles are embedded and fixed in two opposite directions of the Nth curing structure.
6. The offshore single pile sludge in-situ curing structure of claim 4, wherein the surfaces of the adjacent first curing piles are spliced, the surfaces of the first curing piles in the same direction are sequentially spliced to form one edge of the first ring of curing structures, and the surfaces of the adjacent 2 first curing piles in different directions are spliced to form one corner of the first ring of curing structures;
splicing the surfaces of the adjacent second curing piles, sequentially splicing the surfaces of the plurality of second curing piles in the same direction to form one edge of a second circle of curing structure, and splicing the surfaces of the adjacent 2 second curing piles in different directions to form one corner of the second circle of curing structure;
by analogy, the surfaces of the adjacent Nth curing piles are spliced, the surfaces of the multiple Nth curing piles in the same direction are sequentially spliced to form one edge of the Nth ring curing structure, and the surfaces of the adjacent 2 Nth curing piles in different directions are spliced to form one corner of the Nth ring curing structure.
7. The offshore single pile sludge in situ solidification structure of claim 4, wherein the pile heights of the first to Nth solidification piles are sequentially reduced.
8. The offshore single pile sludge in-situ curing structure as recited in claim 4, wherein the raw material of the first to Nth curing piles is concrete.
9. The offshore single pile sludge in situ solidification structure of claim 4, wherein a consolidation layer is formed between adjacent solidified piles, the consolidation layer having a thickness of at least 10 cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120594227.9U CN215715449U (en) | 2021-03-23 | 2021-03-23 | Offshore single-pile sludge in-situ curing structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120594227.9U CN215715449U (en) | 2021-03-23 | 2021-03-23 | Offshore single-pile sludge in-situ curing structure |
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| CN215715449U true CN215715449U (en) | 2022-02-01 |
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Effective date of registration: 20230831 Address after: 200032 No. 139, Xuhui District, Shanghai, Pingjiang Road Patentee after: CCCC THIRD HARBOR ENGINEERING Co.,Ltd. Patentee after: NINGBO BRANCH, CCCC NO.3 HARBOR ENGINEERING CO.,LTD. Address before: 315200 No. 462 East Yanjiang Road, Zhenhai District, Zhejiang, Ningbo Patentee before: NINGBO BRANCH, CCCC NO.3 HARBOR ENGINEERING CO.,LTD. |