CN109306705B - Bucket foundation capable of weakening soil blockage phenomenon - Google Patents
Bucket foundation capable of weakening soil blockage phenomenon Download PDFInfo
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- CN109306705B CN109306705B CN201811293082.8A CN201811293082A CN109306705B CN 109306705 B CN109306705 B CN 109306705B CN 201811293082 A CN201811293082 A CN 201811293082A CN 109306705 B CN109306705 B CN 109306705B
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- 239000002689 soil Substances 0.000 title claims abstract description 64
- 230000003313 weakening effect Effects 0.000 title claims abstract description 21
- 238000005192 partition Methods 0.000 claims abstract description 125
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000012634 fragment Substances 0.000 claims abstract description 6
- 230000037237 body shape Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 239000002985 plastic film Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- 230000000149 penetrating effect Effects 0.000 description 6
- 230000035515 penetration Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Foundations (AREA)
- Revetment (AREA)
Abstract
The invention discloses a bucket foundation capable of weakening the phenomenon of soil blockage, which comprises a barrel body, a top plate and a partition plate, wherein the top of the barrel body is hermetically connected with the top plate to form an inverted barrel body shape, and a water inlet valve and a water outlet valve are arranged on the top plate; the inner wall of the cylinder body is provided with a plurality of partition plates which are distributed at intervals, and the partition plates are in sealing contact with the inner wall of the cylinder body; the distance between every two adjacent partition plates is gradually reduced from bottom to top; the partition plates are made of brittle materials, and each partition plate is provided with an eccentric preformed hole; the water flow path formed by the water outlet valve after each partition board is installed and the preformed holes on each adjacent partition board is longest. After the plurality of partition plates are arranged in the barrel, water and air can only flow through the reserved holes between the adjacent partition plates, and the flow path of the water is greatly increased, so that the hydraulic gradient inside and outside the barrel is greatly reduced, and the effect of weakening or even eliminating the soil blockage phenomenon is further achieved; the partition plate is made of brittle and round plastic sheets, the price is low, the partition plate is cracked by the top of the seabed soil body in the injection process to form a plurality of fragments, and the construction is not influenced.
Description
The technical field is as follows:
the invention relates to a barrel-shaped foundation of ocean engineering, in particular to a barrel-shaped foundation capable of weakening the phenomenon of soil blockage.
Background art:
the bucket foundation is generated in Norway in the nineties of the twentieth century, is a circular plate foundation with a skirt, and is gradually applied to an ocean platform and an offshore wind power foundation due to the characteristics of reducing the engineering quantity, saving the investment, shortening the offshore construction time, being reusable and the like.
There are also some problems to be solved in the design and construction installation of bucket foundations. Among them, the soil clogging phenomenon is one of the difficulties which have plagued barrel-shaped basic techniques in recent years. The soil blockage phenomenon means that the mud surface in the barrel is heaped up upwards under the action of the pressure difference or seepage force between the inside and the outside of the barrel in the process of the barrel-shaped foundation penetrating into the seabed, and contacts with the top of the barrel in advance in the later period of the barrel-shaped foundation penetrating, so that the barrel-shaped foundation cannot sink to the designed depth. In the suction anchor installation engineering of several barrel-shaped foundation manufacture carried out in the Bohai sea, the height of the generated soil plug is generally 10-30 cm. In the suction anchor sinking project of barrel-shaped foundation manufacture in the GORM oil field in 1981, the problem of soil plug is also encountered (the seabed soil for sinking the suction anchor is mainly sandy soil, the maximum height of the soil plug in the anchor can reach nearly 3m), the suction anchor can not sink to the preset design depth due to the occurrence of the soil plug, which brings difficulty to installation and construction, prolongs the time of offshore installation operation, and reduces the bearing capacity of the suction anchor to a certain extent. Meanwhile, the top of the anchor is higher than the mud surface of the sea bottom due to the soil plug, so that the change of a flow field near the anchor is caused, the soil body around the anchor is scoured, the bearing capacity of the suction anchor is further reduced, and the influence is particularly obvious on shallow sea water areas such as the Bohai sea and the like. The harm it brings to the suction anchor is not negligible (as can be seen from the mud mark of the recovered suction anchor, the depth of this local scouring can reach 1.5 m). It is seen that techniques for weakening or eliminating the soil plug phenomenon inside the barrel foundation have yet to be developed.
In the negative pressure sinking process of the bucket foundation, the uplift amount of the soil plug is not only related to the property of the soil body and the size of the bucket body, but also closely related to the applied negative pressure. From the viewpoint of soil mechanics, the occurrence of the soil plug phenomenon is related to the distribution of the seepage field and the deformation and damage characteristics of the soil. Generally, the larger the hydraulic gradient inside and outside the barrel, the more severe the soil plug phenomenon. Therefore, in order to reduce the soil plug phenomenon in engineering, a relatively small negative pressure difference is often selected so as to reduce the hydraulic gradient. If the applied negative pressure is smaller than the allowable negative pressure value when the barrel-shaped foundation is sunk under the negative pressure considered in the API-RP-2SK specification, the volume of the soil plug bulge is only equal to the volume of the soil body replaced by the barrel wall sinking. However, the barrel-shaped foundation is low in penetration speed due to the fact that the negative pressure in the barrel is too low, construction time is prolonged, and when the barrel-shaped foundation is subjected to large frictional resistance, the barrel-shaped foundation cannot penetrate into the seabed to the designed depth due to the small negative pressure difference. Therefore, the idea of weakening the soil plug phenomenon by reducing the negative pressure difference inside and outside the barrel and further reducing the hydraulic gradient has certain limitation.
Chinese patent publication No. CN105926666B, CN105926661B disclose a barrel-shaped foundation (suction anchor) of offshore wind power capable of eliminating soil plugs, rotatable nozzles are symmetrically installed on the inner top of the barrel-shaped foundation through bearings, and high-pressure water sprayed from the nozzles flushes the soil plugs in the barrel body, thereby eliminating the phenomenon of soil plugs in a negative pressure barrel. The limitations of this technique are: high-pressure water is sprayed at the top in the barrel, so that the pressure difference between the inside and the outside of the barrel is reduced, and the penetration load is reduced; on the other hand, a longer water pipe needs to be connected and a high-pressure water pump needs to operate during installation, so that the construction difficulty is improved, and the construction cost is increased. Therefore, there is a need to develop a simple and inexpensive method for reducing and eliminating the soil clogging phenomenon inside the barrel foundation, and to promote the innovation and progress of the barrel foundation construction technology.
The invention content is as follows:
in order to overcome the defects of the prior art, the invention aims to provide the barrel-shaped foundation capable of weakening the soil blockage phenomenon, the multi-layer partition plates are arranged in the barrel-shaped foundation, the flow path of water is prolonged, the hydraulic gradient inside and outside the barrel is reduced, and the effect of weakening or even eliminating the soil blockage phenomenon is achieved.
The technical scheme of the invention is as follows:
the bucket foundation capable of weakening the soil blockage phenomenon is characterized by comprising a cylinder body, a top plate and a partition plate, wherein the top of the cylinder body is hermetically connected with the top plate to form an inverted bucket body shape, and a water inlet valve and a water outlet valve are arranged on the top plate;
the inner wall of the cylinder body is provided with a plurality of partition plates which are distributed at intervals, and the partition plates are in sealing contact with the inner wall of the cylinder body;
all the partition boards are arranged in the height range of 1/2 cylinder bodies away from the top of the barrel; the space between every two partition boards is distributed in a non-equidistant way, and the space between every two adjacent partition boards is gradually reduced from bottom to top;
the partition plates are made of brittle materials, and each partition plate is provided with an eccentric preformed hole;
the water flow path formed by the water outlet valve after each partition board is installed and the preformed holes on each adjacent partition board is longest.
Can weaken bucket foundation of soil stopper phenomenon, its characterized in that, the barrel inner wall be provided with multiunit interval distribution's dividing pier, dividing pier group number is the same with baffle quantity, the baffle is installed to the lower terminal surface of each group dividing pier, the bottom surface of dividing pier is the level form, even, the symmetry of every group dividing pier welds in the same elevation place of barrel inner wall, four are no less than to every group dividing pier quantity, every group dividing pier bottom surface is on same altitude plane.
The bucket foundation capable of weakening the soil blockage phenomenon is characterized in that each group of the partition piers is arranged in the height range of 1/2 cylinder bodies away from the top of the bucket; the distance between every group of the partition piers is distributed in a non-equidistant mode, and the closer the distance to the barrel top is, the smaller the distance between every two adjacent groups of the partition piers is.
The barrel-shaped foundation capable of weakening the soil blockage phenomenon is characterized in that the partition plate is disc-shaped, and the outer diameter of the partition plate is equal to the inner diameter of the barrel-shaped foundation; each partition plate is arranged at the bottom of each group of partition piers, and the partition plates and the inner wall of the cylinder body are sealed by engineering glue.
The barrel-shaped foundation capable of weakening the soil blockage phenomenon is characterized in that the partition plate is made of a brittle circular plastic thin plate, and the thickness of the partition plate is not more than 4 cm; when the partition plate is contacted with the seabed soil body, the partition plate is cracked by the seabed soil body to be brittle and broken when the barrel-shaped foundation penetrates into the seabed, and a plurality of fragments are formed.
The bucket foundation capable of weakening the soil blockage phenomenon is characterized in that the upper surface of the partition board is provided with sunken marks for guiding crushing, and the sunken marks are in a grid shape.
The invention has the beneficial effects that:
1. after the plurality of partition plates are arranged at the middle upper part of the inner side of the barrel, water and air can only flow through the reserved holes between the adjacent partition plates, and the flow path of the water is greatly increased, so that the hydraulic gradient inside and outside the barrel is greatly reduced, and the effect of weakening or even eliminating the soil blockage phenomenon is further achieved;
2. the partition plate is made of round plastic sheets, and the price is low, namely the total cost of the barrel-shaped foundation is basically not influenced by the technology;
3. the partition plate is made of brittle materials, and after the partition plate is contacted with the seabed soil body, the seabed soil body cracks to form a plurality of fragments, namely the partition plate has no influence on the injection construction of the barrel-shaped foundation.
Description of the drawings:
fig. 1 is an external view of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
Fig. 3 is a schematic view of the internal structure of the present invention after the partition board is hidden.
FIG. 4 is a schematic view of the internal baffle arrangement of the present invention.
FIG. 5 is a schematic view of the arrangement of adjacent internal partitions according to the invention.
FIG. 6 is a schematic view of the present invention penetrating the seabed.
FIG. 7 is a schematic view of the barrel foundation of the present invention being further penetrated into the seabed after a portion of the partition has been broken.
FIG. 8 is a schematic view of a spacer structure with indentation according to the present invention.
Description of reference numerals: 1. a barrel; 2. a top plate; 3. a water inlet and outlet valve; 4. separating piers; 5. a partition plate; 6. reserving a hole; 7. a dent mark; A. a sea bed surface.
The specific implementation mode is as follows:
referring to the drawings (arrows indicate flow paths of water and air):
the bucket foundation capable of weakening the soil blockage phenomenon comprises a cylinder body 1, a top plate 2 and a partition plate 5, wherein the top of the cylinder body 1 is hermetically connected with the top plate 2 to form an inverted bucket body shape, and a water inlet and outlet valve 3 is arranged on the top plate 2;
the inner wall of the cylinder 1 is provided with a plurality of partition plates 5 which are distributed at intervals, and the partition plates 5 are in sealing contact with the inner wall of the cylinder 1;
all the partition boards 5 are arranged in the height range of 1/2 cylinder bodies from the top of the barrel; the distance between every two adjacent partition plates 5 is distributed in a non-equidistant way, and the distance between every two adjacent partition plates 5 is gradually reduced from bottom to top;
the partition plates 5 are made of brittle materials, and each partition plate 5 is provided with an eccentric preformed hole 6;
after each partition plate 5 is installed, the water outlet valve 3 and the preformed hole 6 of each adjacent partition plate 5 form the longest water flow path, as shown in fig. 1 and 2.
The inner wall of the barrel body 1 is provided with a plurality of groups of partition piers 4 distributed at intervals, the number of the groups of the partition piers 4 is the same as that of the partition boards 5, the lower end face of each group of the partition piers 4 is provided with the partition boards 5, the bottom faces of the partition piers 4 are in close contact with the top faces of the partition boards 5, the bottom faces of the partition piers 4 are horizontal, the top faces of the partition piers 4 can be horizontal, inclined or in other shapes, and one condition that the top faces of the partition piers 4 are inclined is shown in fig. 3 and. Every group of hard shoulder 4 is even, the symmetrical welding in the same elevation place of 1 inner wall of barrel, and four are no less than to every group hard shoulder 4 quantity, and 4 bottom surfaces of every group hard shoulder are on same high plane.
The partition piers 4 are small in size and only play a role in fixing and separating the partition plates 5, so that the arrangement of the partition piers 4 has no influence on the penetration construction of the barrel-shaped foundation.
Each group of the partition piers 4 is arranged in the height range of 1/2 cylinder bodies away from the top of the barrel; the distance between each group of the partition piers 4 is distributed in a non-equidistant way, and the closer the distance to the barrel top is, the smaller the distance between the adjacent groups of the partition piers 4 is. Studies have shown that the soil-plug phenomenon gradually develops after the barrel-shaped foundation is penetrated to half the depth, so that the partition 5 may be provided only in the upper range of the barrel-shaped foundation.
The number of the partition plates 5 is not less than three, the number of the partition plates 5 can be comprehensively determined according to the estimated condition of the soil plug phenomenon, the partition plates 5 are disc-shaped, and the outer diameter of each partition plate is equal to the inner diameter of the barrel-shaped foundation; the partition plates are arranged at the bottoms of the partition piers, and the partition plates and the inner wall of the cylinder body are sealed by engineering glue, so that water and air can only pass through the partition plates 5 through the reserved holes 6 on the partition plates 5, as shown in fig. 2, and arrows in the figure indicate flow paths of the water and the air.
The figure shows the case where four partition plates 5 are provided. The more the number of the partition plates 5 is, the longer the path of the water flow is, the smaller the hydraulic gradient inside and outside the barrel is, and the less obvious the soil blockage phenomenon is.
The partition plate 5 is made of a brittle circular plastic thin plate, the thickness of the partition plate is not more than 4cm, and the partition plate 5 can resist the pressure difference generated when water and air flow; when the partition plate 5 is contacted with the seabed soil body, the partition plate is cracked by the seabed soil body to be brittle and broken when the barrel-shaped foundation is penetrated into the seabed, a plurality of fragments are formed, and the partition plate 5 has no influence on the construction of the barrel-shaped foundation when the barrel-shaped foundation is penetrated into the seabed. The diaphragm 5 should be prevented from being fractured by the pressure difference before it contacts the seabed soil, which would otherwise cause the predetermined flow path to fail.
The partition 5 is inexpensive and has substantially no effect on the overall cost of the bucket foundation. The partition plate is made of brittle materials, and after the partition plate is contacted with the seabed soil body, the seabed soil body cracks to form a plurality of fragments, namely the partition plate has no influence on the injection construction of the barrel-shaped foundation.
The upper surface of the clapboard 5 is provided with concave marks 7 for guiding the crushing, and the concave marks are in a grid shape.
The partition plates 5 are installed in such an orientation that the distance between the prepared holes 6 of the adjacent partition plates 5 is the farthest, and finally the flow path of water and air formed by the inlet and outlet water valves 3 and the prepared holes 6 of the adjacent partition plates 5 is the longest. The prepared holes 6 of the adjacent partition boards 5 are respectively at the two ends of a certain diameter direction, and are farthest away, as shown in fig. 5.
The mechanism of weakening and even eliminating the soil plug phenomenon by the technology is introduced as follows: generally, the soil plug phenomenon is closely related to hydraulic gradients inside and outside the barrel, and the larger the hydraulic gradient is, the more serious the soil plug phenomenon is. The hydraulic gradient is calculated by equation (1):
i＝Δh/L (1)
in the formula, i is the hydraulic gradient, delta h is the water head difference inside and outside the barrel, and L is the water flowing distance (seepage diameter). In order to reduce the hydraulic gradient i, a common method is to reduce a water head difference Δ h between the inside and the outside of the barrel, but the water head difference Δ h is too small, so that the penetration load of the barrel-shaped foundation is small, the penetration speed is small, the construction time is long, and when large resistance is met, the small negative pressure difference can cause the barrel-shaped foundation to be incapable of penetrating into the seabed to the designed depth. Therefore, the idea of weakening the soil plug phenomenon by reducing the negative pressure difference inside and outside the barrel and further reducing the hydraulic gradient has certain limitation.
In the conventional technology, only the hydraulic gradient i is reduced by reducing the water head difference Δ h, and the effect of reducing the hydraulic gradient i can be achieved by increasing the seepage diameter L without paying attention to the traditional technology. The technology greatly prolongs the seepage diameter L by arranging a plurality of partition plates 5, thereby greatly reducing the hydraulic gradient i and achieving the purpose of weakening or even eliminating the soil blockage phenomenon.
After the upper portion sets up a plurality of baffles 5 in the inboard of bucket foundation, water and air can only flow through the preformed hole 6 between the adjacent baffle 5, and the route L greatly increased that water flows to the inside and outside hydraulic gradient i of bucket has been reduceed greatly, and then reaches and weakens or even eliminates the effect of soil blocking phenomenon. On one hand, the partition plate 5 has low cost and basically has no influence on construction; on the other hand, the traditional method for reducing the water head difference delta h between the inside and the outside of the barrel is not adopted, so that the construction process has enough penetration load, the offshore construction time is short, and the construction cost is reduced.
Figure 6 shows a schematic view of the construction of the barrel-shaped foundation penetrating into the seabed before the baffles 5 have not yet contacted the seabed. Fig. 7 shows a construction schematic diagram of the barrel foundation continuing to penetrate into the seabed after the bottom part of the partition plate 5 contacts the seabed and is subjected to brittle fracture. Due to the arrangement of the partition plate 5, the soil plug phenomenon in the process of penetrating the barrel-shaped foundation into the seabed is lighter and even disappears, the barrel-shaped foundation can be smoothly penetrated to the designed depth, and the condition that the barrel-shaped foundation cannot be penetrated to the final elevation due to the serious soil plug phenomenon can be avoided.
The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the invention, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the invention without affecting the effect and the achievable purpose of the invention. In addition, the terms "upper", "inner", "horizontal", "top", "adjacent", and the like used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof are also regarded as the scope of the present invention without substantial changes in the technical contents.
The accompanying drawings only show the conditions of partial shape and partial construction mode of the bucket foundation, according to the proposed thought, the shapes, the number and the connection mode of the partition piers and the partition plates can be changed to form other related types of bucket foundations capable of weakening the soil plug phenomenon, which all belong to equivalent modification and change of the technology, and are not repeated herein.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.
The present invention is not limited to the above embodiments, and various other equivalent modifications, substitutions and alterations can be made without departing from the basic technical concept of the invention as described above, according to the common technical knowledge and conventional means in the field.
Claims (6)
1. The bucket foundation capable of weakening the soil blockage phenomenon is characterized by comprising a cylinder body, a top plate and a partition plate, wherein the top of the cylinder body is hermetically connected with the top plate to form an inverted bucket body shape, and a water inlet valve and a water outlet valve are arranged on the top plate;
the inner wall of the cylinder body is provided with a plurality of partition plates which are distributed at intervals, and the partition plates are in sealing contact with the inner wall of the cylinder body;
all the partition boards are arranged in the height range of 1/2 cylinder bodies away from the top of the barrel; the space between every two partition boards is distributed in a non-equidistant way, and the space between every two adjacent partition boards is gradually reduced from bottom to top;
the partition plates are made of brittle materials, and each partition plate is provided with an eccentric preformed hole;
the water flow path formed by the water outlet valve after each partition board is installed and the preformed holes on each adjacent partition board is longest.
2. The bucket foundation of claim 1, wherein the inner wall of the barrel is provided with a plurality of groups of spaced piers, the number of the groups of piers is the same as the number of the partition plates, the lower end surface of each group of piers is provided with the partition plate, the bottom surface of each pier is horizontal, each group of piers is uniformly and symmetrically welded at the same elevation of the inner wall of the barrel, the number of piers in each group is not less than four, and the bottom surface of each group of piers is on the same elevation plane.
3. The bucket foundation of claim 2 wherein the sets of piers are disposed within 1/2 barrel heights from the top of the bucket; the distance between every group of the partition piers is distributed in a non-equidistant mode, and the closer the distance to the barrel top is, the smaller the distance between every two adjacent groups of the partition piers is.
4. The bucket foundation of claim 1 wherein said partition is in the form of a disk having an outer diameter equal to the inner diameter of the bucket foundation; each partition plate is arranged at the bottom of each group of partition piers, and the partition plates and the inner wall of the cylinder body are sealed by engineering glue.
5. The bucket foundation of claim 1 wherein said spacer is made of a thin circular sheet of brittle plastic material, the thickness of the spacer being no greater than 4 cm; when the partition plate is contacted with the seabed soil body, the partition plate is cracked by the seabed soil body to be brittle and broken when the barrel-shaped foundation penetrates into the seabed, and a plurality of fragments are formed.
6. The bucket foundation of claim 5 wherein said upper surface of said partition is provided with crush-inducing indentations in the form of a grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811293082.8A CN109306705B (en) | 2018-11-01 | 2018-11-01 | Bucket foundation capable of weakening soil blockage phenomenon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811293082.8A CN109306705B (en) | 2018-11-01 | 2018-11-01 | Bucket foundation capable of weakening soil blockage phenomenon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109306705A CN109306705A (en) | 2019-02-05 |
| CN109306705B true CN109306705B (en) | 2020-11-27 |
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| CN201811293082.8A Active CN109306705B (en) | 2018-11-01 | 2018-11-01 | Bucket foundation capable of weakening soil blockage phenomenon |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101868234B1 (en) * | 2016-12-05 | 2018-06-15 | 현대건설주식회사 | Suction Bucket Foundation for Marine Structure and Marine Structure Including the Same |
| CN106592619B (en) * | 2017-01-19 | 2018-08-17 | 东南大学 | A kind of suction caisson foundation with four-bladed vane |
| CN107268667A (en) * | 2017-07-05 | 2017-10-20 | 东南大学 | A kind of suction caisson foundation of sidewall band sizing device |
| CN207348118U (en) * | 2017-10-25 | 2018-05-11 | 河海大学 | A kind of suction barrel base for model test |
| CN108425379B (en) * | 2018-04-26 | 2023-06-09 | 浙江大学 | Deep sea inner ring type submarine suction anchor and installation method thereof |
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