CN114855790A - Novel multi-cylinder pile shoe foundation - Google Patents
Novel multi-cylinder pile shoe foundation Download PDFInfo
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- CN114855790A CN114855790A CN202210354224.7A CN202210354224A CN114855790A CN 114855790 A CN114855790 A CN 114855790A CN 202210354224 A CN202210354224 A CN 202210354224A CN 114855790 A CN114855790 A CN 114855790A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
- E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/72—Pile shoes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
-
- 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
- E02D27/525—Submerged foundations, i.e. submerged in open water using elements penetrating the underwater ground
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0056—Platforms with supporting legs
- E02B2017/0073—Details of sea bottom engaging footing
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0056—Platforms with supporting legs
- E02B2017/0073—Details of sea bottom engaging footing
- E02B2017/0082—Spudcans, skirts or extended feet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a novel multi-cylinder pile shoe foundation, which comprises: the pile shoe part is in a spindle shape, is arranged below the pile leg structure of the self-elevating drilling platform and is fixedly connected with the lower bottom surface of the pile leg; the water through holes are arranged on the pile shoe parts and vertically penetrate through the pile shoe parts; and the multi-cylinder supporting part is in a hollow cylindrical shape, is arranged below the pile shoe part and is positioned below the water through hole, and the upper part of the multi-cylinder supporting part is fixedly connected with the pile shoe part. The number of the water through holes and the number of the multi-cylinder supporting parts are multiple and are arranged in a one-to-one correspondence mode, and the multiple water through holes are uniformly and annularly distributed on the disc surface of the pile boot part. According to the novel multi-cylinder pile shoe foundation, in the process that the pile shoe foundation is penetrated into a soil body by the self-elevating drilling platform, the lower multi-cylinder supporting parts are utilized to bound more sand soil layer soil body areas, and a lower compression compact area with larger volume is obtained to improve the penetration resistance, so that higher foundation bearing capacity is provided, better stable support is obtained in a clay layer, and the condition of puncture damage is relieved.
Description
Technical Field
The invention relates to the technical field of offshore drilling platforms, in particular to a novel multi-cylinder pile shoe foundation.
Background
The self-elevating marine drilling platform is a marine engineering facility with wide application, mainly performs on-site exploration and drilling work on the seabed in the offshore and is also used as a working base for oil and gas exploitation. The working mode of the self-elevating drilling platform engineering is that a plurality of pile legs are put down through a barge, and a pile shoe foundation is penetrated into the seabed by a certain depth so as to achieve enough bearing capacity to support the whole platform and raise the platform out of the sea.
After the specific position of the engineering is determined, firstly, pile legs are stretched and lowered through a rack-and-pinion system by a barge, a pile shoe foundation is arranged at the bottommost part of the connection of the pile legs, the pile shoe foundation with a large diameter is lowered to be in contact with the sea bottom, then, the preloading is carried out through the self weight of the ship body and the additional balance weight of seawater, the pile shoes are penetrated into the sea bottom soil layer, and the penetration is completed when the bearing capacity provided by the pile shoes is larger than the preloading load. Often have the foundation condition that sand covered clay in the ocean, basic bearing capacity mainly comes from upper portion sand layer, and lower part clay layer intensity is relatively weak, when taking place following three kinds of circumstances: when the load of the prepressing on the pile shoe foundation is too large to exceed the bearing capacity of the lower lying soft layer, the thickness of a sand layer is thinner than that of the pile shoe foundation, and ocean current scouring on the seabed is serious, the pile legs can rapidly penetrate into a lower clay layer at a higher speed, so that puncture damage is caused, and the inclination of an upper layer platform can be immediately caused. The puncture damage occurs in a short time, the damage depth is large, pile legs can be broken, the influence is large, and huge hidden dangers can be brought to the structural safety of pile shoes, pile legs and even the whole platform.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a novel multi-tube shoe foundation.
The invention provides a novel multi-cylinder pile shoe foundation, which is characterized by comprising the following components: the pile shoe part is in a spindle shape, is arranged below the pile leg structure of the self-elevating drilling platform and is fixedly connected with the lower bottom surface of the pile leg; the water through holes are arranged on the pile shoe parts and vertically penetrate through the pile shoe parts; and a multi-cylinder support part which is hollow cylindrical, is arranged below the pile shoe part and is positioned below the water through hole, and the upper part of the multi-cylinder support part is fixedly connected with the pile shoe part. Wherein, the lower bottom surface of the pile leg is positioned at the center of the upper top surface of the pile boot part. The number of limbers and many barrel support portion be a plurality of and the one-to-one setting, and a plurality of limbers are even annular distribution on the disc face of stake boots portion.
The novel multi-cylinder pile shoe foundation provided by the invention can also have the following characteristics: wherein, the number of the multi-cylinder supporting parts is more than or equal to 3.
The novel multi-cylinder pile shoe foundation provided by the invention can also have the following characteristics: wherein, the multi-cylinder supporting part and the pile shoe part are fixedly connected into a whole.
The novel multi-cylinder pile shoe foundation provided by the invention can also have the following characteristics: wherein the height of the multi-cylinder supporting part is 0.5-15 m, the diameter of the bottom surface is 1-10 m, and the thickness of the cylinder wall is 0.1-1 m.
The novel multi-cylinder pile shoe foundation provided by the invention can also have the following characteristics: wherein the diameter of the water through hole is 0.1-1 m.
The novel multi-cylinder pile shoe foundation provided by the invention can also have the following characteristics: wherein, pile shoe portion includes round platform shape coupling assembling, discoid supporting component and the subassembly of obconing. The round platform shape coupling assembling is the round platform form, and the diameter of the last bottom surface of round platform shape coupling assembling equals with the diameter of the lower bottom surface of spud leg, and the bottom surface of discoid bearing subassembly is whole with the bottom surface fixed connection of obconic subassembly, and the height of obconic subassembly is 1 ~ 10m, and the maximum diameter of discoid bearing subassembly is 5 ~ 40 m.
The novel multi-cylinder pile shoe foundation provided by the invention can also have the following characteristics: wherein the diameter of the upper top surface of the pile shoe part is 1-10 m.
Action and Effect of the invention
According to the novel multi-cylinder pile shoe foundation of the invention, the novel multi-cylinder pile shoe foundation comprises: the pile shoe part is in a spindle shape, is arranged below the pile leg structure of the self-elevating drilling platform and is fixedly connected with the lower bottom surface of the pile leg; the water through holes are arranged on the pile shoe parts and vertically penetrate through the pile shoe parts; and a multi-cylinder support part which is hollow cylindrical, is arranged below the pile shoe part and is positioned below the water through hole, and the upper part of the multi-cylinder support part is fixedly connected with the pile shoe part. Wherein the lower bottom surface of the pile leg is positioned at the midpoint of the pile boot. The number of limbers and many barrel support portion be a plurality of and the one-to-one setting, and a plurality of limbers are even annular distribution on the disc face of stake boots portion. Therefore, the novel multi-cylinder pile shoe foundation utilizes the lower multi-cylinder supporting part to bind more sandy soil body areas, obtains a lower compression compact area with larger volume to improve the penetration resistance, thereby providing higher foundation bearing capacity, obtaining better stable support in the clay layer and slowing down the occurrence of puncture damage. Compared with the traditional pile shoe foundation, the pile shoe foundation can be installed in a seabed soil layer with more complex working conditions, and has the advantages of high safety, strong bearing capacity, good stability and reliability and the like.
In addition, when the novel multi-cylinder pile shoe foundation disclosed by the invention is penetrated into a sandy soil layer, the soil plug is formed in the multi-cylinder supporting part, so that a larger bearing capacity is provided, the upper layer structure has better overall stability, and water in the cylinder is discharged by virtue of the water through holes, so that the water pressure in the multi-cylinder supporting part is reduced, more sandy soil is poured into the cylinder to form the soil plug, and the compaction of a soil body area below is facilitated. Compared with the traditional pile shoe foundation, the pile shoe foundation increases the penetration resistance and plays a bearing role.
In addition, each cylinder body in the multi-cylinder supporting part is filled with soil particles which enter in the early stage during penetration, the volume of a soil body compression compact area is increased, the soil body compression compact area is brought into a lower layer along with the downward movement of the pile shoe, and a part of compact soil body is locked in the space surrounded by the outer walls of the multi-cylinders, so that the penetration resistance is increased reversely, and the foundation is greatly improved compared with the foundation of the traditional pile shoe. Meanwhile, the pile leg lifting device is simple in structure and convenient to implement, and the resistance effect when the lifting pile leg penetrates into the pile leg lifting device is obvious.
Finally, by applying the novel multi-cylinder pile shoe foundation pattern, the maximum amplitude of increase of the pre-pressing load and the maximum injection resistance in the injection process can reach 20-50%, the foundation bearing capacity is improved, the injection depth of the structure can be reduced, and the stability and the influence on the soil layer are also obviously improved. The method of the invention has better economy for the same rigidity and deformation performance indexes.
Drawings
Fig. 1 is a schematic view of a novel multi-barrel pile shoe foundation structure in a first embodiment of the invention;
FIG. 2 is a longitudinal section schematic diagram of the novel multi-barrel pile shoe penetration process in the first embodiment of the invention;
FIG. 3 is a schematic diagram illustrating the operation of a multi-layer soil penetration process according to a first embodiment of the present invention, wherein FIGS. 3(a), 3(b) and 3(a) are schematic diagrams illustrating different stages of the multi-layer soil penetration process, respectively;
FIG. 4 is a schematic view of a four-leg pile shoe foundation installation application in accordance with a first embodiment of the present invention; and
fig. 5 is a schematic view of the foundation structure of the novel multi-barrel pile shoe according to the second embodiment of the invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following embodiments are specifically described with reference to the accompanying drawings.
< example one >
In this embodiment, a novel multi-barrel shoe foundation 100 is provided.
Fig. 1 is a schematic structural diagram of a novel multi-barrel pile shoe foundation in the first embodiment of the invention.
Fig. 2 is a longitudinal section working principle diagram of the novel multi-barrel pile shoe penetration process in the first embodiment of the invention.
As shown in fig. 1 and 2, the novel multi-leg shoe foundation 100 of the present embodiment includes a shoe portion 20, a water passage hole 30, and a multi-leg support portion 40.
The pile shoe 20 is spindle shaped and is arranged below the leg structure of the jack-up rig. The stake shoe 20 includes a truncated cone shaped connecting member 21, a disc shaped retainer member 22 and an inverted cone shaped member 23. The truncated cone-shaped connecting component 21 in this embodiment is a steel truncated cone, the diameter of the upper bottom surface is 2m, and the diameter of the lower bottom surface is 20 m. The disc-shaped support member 22 is a steel disc with a flat bottom surface and a diameter D of 20 m. The diameter of the bottom surface of the inverted cone assembly 23 is 20m, and the height of the inverted cone is 8 m.
The upper bottom surface of the truncated cone-shaped connecting component 21 is fixedly connected with the lower bottom surface of the pile leg, and the lower bottom surface of the truncated cone-shaped connecting component 21 is fixedly connected with the bottom surface of the disc-shaped supporting component 22. The bottom surface of the inverted cone-shaped member 23 is fixedly connected with the lower bottom surface of the disc-shaped supporting member 22 as a whole.
The materials of the cone-shaped connecting component 21, the disc-shaped supporting component 22 and the inverted cone-shaped component 23 are all steel, and the elastic modulus E is 2.1 multiplied by 10 11 Pa, a Poisson ratio v of 0.3 and a density rho of 7800kg/m 3 。
The water passage 30 is provided in the shoe portion 20 and vertically penetrates the truncated cone-shaped coupling member 21, the disc-shaped receiving member 22, and the reverse cone-shaped member 23. In this embodiment, the number of the water passage holes 30 is four, and the diameter thereof is 0.4 m. The segments are uniformly distributed on the disk surface of the shoe portion 20 in a ring shape.
The multi-tube support portion 40 is hollow cylindrical, is provided below the shoe portion 20, and is located below the water passage hole 30. The upper bottom surface of the multi-cylinder supporting part 40 is fixedly connected with the inverted cone assembly 23 into a whole.
In the present embodiment, the number of the multi-cylinder support portions 40 is four and is provided in one-to-one correspondence with the positions of the water passage holes 30. The height of the multi-cylinder support part 40 is 1m, the diameter of the bottom surface is 4m, and the thickness of the cylinder wall is 0.3 m. The material is the same as the shoe portion 20.
In this embodiment, the penetration depth H of the multi-cylinder pile shoe foundation 2 Is 10.5 m.
As shown in fig. 2, after the positioning address is measured, the pile leg is lowered through the rack-and-pinion system, the pile shoe part 20 and the multi-cylinder support part 40 are lowered to the sea bottom, after the plurality of pile legs are stably installed, the barge hull extracts seawater, the pile shoe part 20 and the multi-cylinder support part 40 are pre-pressed through the self-weight of the barge hull and the weight of the seawater, the pile shoe part 20 is compacted and penetrated to achieve higher bearing capacity, and after the self-elevating drilling platform is raised to a proper height, the installation process is finished.
Fig. 3 is a schematic diagram of the operation of a multi-layer soil penetration process according to a first embodiment of the present invention, wherein fig. 3(a), fig. 3(b) and fig. 3(a) are schematic diagrams of different stages of the multi-layer soil penetration process, respectively.
As shown in fig. 3, as the penetration depth of the pile shoe portion 20 of the multi-cylinder pile shoe foundation 100 is increased, soil displacement occurs in the sand layer 50 and the clay layer 60. It can be seen that when the multi-cylinder pile shoe foundation 100 is located in the upper sandy soil layer 50, sandy soil forms a soil plug in the cylinder foundation of the multi-cylinder supporting portion 40, and binds a large amount of sandy soil below the pile shoe portion 20 to form a compacted dense area, and the displacement of the multi-cylinder pile shoe foundation 100 carries a large amount of sandy soil in the upper sandy soil layer 50 into the lower muck layer 60, so that as shown in fig. 3(c), the sandy soil invades into the muck layer to form a remarkable U-shaped boundary cross section at the cross section.
FIG. 4 is a schematic view of a four-leg pile shoe foundation installation application in accordance with a first embodiment of the present invention.
As shown in fig. 4, the multi-barrel shoe foundation in this embodiment is used as follows:
and step S1, measuring, positioning and selecting the construction position.
In step S2, the spud legs are lowered through the gear system.
Step S3, putting 4 novel multi-cylinder pile shoe foundations 100 to the seabed plane, and extracting seawater from the ship body to prepare for prepressing;
and step S4, pre-pressing the novel multi-cylinder pile shoe foundation 100 by using the self weight of the ship body and the weight of seawater to penetrate.
And step S5, discharging seawater when the drilling platform rises to a preset height relative to the sea level, completing prepressing and finishing installation.
< example two >
In this embodiment, a novel multi-barrel shoe foundation 200 is provided.
Fig. 5 is a schematic view of the foundation structure of the novel multi-barrel pile shoe according to the second embodiment of the invention.
As shown in fig. 5, the number of the multi-tube supporting parts 40 and the number of the water through holes 30 in the novel multi-tube shoe foundation 200 in the present embodiment are three, and the rest of the structure, the material, and the using method are the same as those in the first embodiment.
Effects and effects of the embodiments
According to the novel multi-cylinder pile shoe foundation of this embodiment, because include: the pile shoe part is in a spindle shape, is arranged below the pile leg and is fixedly connected with the lower bottom surface of the pile leg; the water through holes are arranged on the pile shoe parts and vertically penetrate through the pile shoe parts; and a multi-cylinder support part which is hollow cylindrical, is arranged below the pile shoe part and is positioned below the water through hole, and the upper part of the multi-cylinder support part is fixedly connected with the pile shoe part. Wherein the lower bottom surface of the pile leg is positioned at the midpoint of the pile boot. The number of the water through holes and the number of the multi-cylinder supporting parts are multiple and are arranged in a one-to-one correspondence mode, and the multiple water through holes are uniformly and annularly distributed on the disc surface of the pile boot part. Therefore, the novel many section of thick bamboo pile shoe basis of this embodiment utilizes many supporting parts of below constraint more sand soil layer soil body regions, obtains the closely knit district of below compression of more bulky in order to promote the penetration resistance to provide higher basic bearing capacity, obtain better stable support in the clay layer, slow down the condition that the puncture destroys the emergence. Compare with current traditional type pile shoe basis, the sea bed soil layer at more complicated operating mode can be installed to this embodiment, has advantages such as security height, bearing capacity are strong, stability and good reliability.
In addition, when the novel many section of thick bamboo pile shoe basis of this embodiment injects in sand layer, form the soil stopper in the supporting part of many section of thick bamboo to provide bigger bearing capacity, make superstructure have better overall stability, and rely on the limbers to discharge a water in the section of thick bamboo, thereby reduce the water pressure in the supporting part of many sections, it forms the soil stopper to do benefit to more sand that gush into in the section of thick bamboo, and do benefit to the regional extrusion of the soil body in below closely knit. Compared with the traditional pile shoe foundation, the pile shoe foundation increases the penetration resistance and plays a bearing role.
In addition, the soil particles that have flowed in when passing through earlier stage in every barrel of many supporting parts of this embodiment have increased the volume in the closely knit district of soil body compression, move down along with the pile shoe and bring into the lower floor, and the partially closely knit soil body has also been locked to the space that many outer walls surround, leads to the reverse penetration resistance that has increased, compares and has great promotion in traditional pile shoe basis. Simultaneously, this embodiment simple structure, it is convenient to implement, and the resistance effect when promoting the spud leg and pass through is obvious.
In addition, by applying the novel multi-cylinder pile shoe foundation style of the embodiment, the maximum amplitude of increase of the pre-pressing load and the maximum injection resistance in the injection process can reach 20% -50%, the injection depth of the structure can be reduced while the foundation bearing capacity is improved, and the stability and the influence on the soil layer are also obviously improved. The method of the embodiment has better economy for the same rigidity and deformation performance indexes.
In addition, the shape of the pile shoe part is similar to that of the traditional pile shoe foundation, but a plurality of cylinder supporting parts are additionally arranged at the lower part of the pile shoe part, and the lower part of the pile shoe part is in an integral inverted cone shape, so that a cone tip structure of the traditional pile shoe foundation is not needed. The multi-cylinder supporting part is formed by annularly distributing a plurality of small cylinder structures, three to four cylinders are optimal, each single cylinder is correspondingly provided with a water through hole, and a soil plug is formed inside during injection, so that the injection resistance is increased.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (7)
1. A novel multi-cylinder pile shoe foundation is characterized by comprising:
the pile shoe part is in a spindle shape, is arranged below the pile leg structure of the self-elevating drilling platform and is fixedly connected with the lower bottom surface of the pile leg;
the water through holes are formed in the pile shoe parts and penetrate through the pile shoe parts up and down; and
a multi-cylinder support part which is hollow cylinder-shaped, is arranged below the pile shoe part and is positioned below the water through hole, the upper part of the multi-cylinder support part is fixedly connected with the pile shoe part,
wherein the lower bottom surface of the pile leg is positioned at the midpoint of the pile boot part,
the number of the water through holes and the number of the multi-cylinder supporting parts are multiple and are arranged in a one-to-one correspondence mode, and the water through holes are uniformly and annularly distributed on the disc surface of the pile boot part.
2. The novel multi-barrel pile shoe foundation of claim 1, wherein:
wherein, the number of the multi-cylinder supporting parts is more than or equal to 3.
3. The novel multi-barrel pile shoe foundation of claim 1, wherein:
wherein, the multi-cylinder supporting part and the pile shoe part are fixedly connected into a whole.
4. The novel multi-barrel pile shoe foundation of claim 1, wherein:
wherein the height of the multi-cylinder supporting part is 0.5-15 m, the diameter of the bottom surface is 1-10 m, and the thickness of the cylinder wall is 0.1-1 m.
5. The novel multi-barrel pile shoe foundation of claim 1, wherein:
wherein the diameter of the water through hole is 0.1-1 m.
6. The novel multi-barrel pile shoe foundation of claim 1, wherein:
wherein the pile shoe comprises a truncated cone shaped connecting component, a disc shaped supporting component and an inverted cone shaped component,
the cone-shaped connecting component is cone-shaped, the diameter of the upper bottom surface of the cone-shaped connecting component is equal to that of the lower bottom surface of the pile leg, the diameter of the lower bottom surface of the cone-shaped connecting component is equal to that of the disc-shaped supporting component,
the bottom surface of discoid bearing subassembly with the bottom surface fixed connection of obconic subassembly is whole, the height of obconic subassembly is 1 ~ 10m, the maximum diameter of discoid bearing subassembly is 5 ~ 40 m.
7. The novel multi-barrel pile shoe foundation of claim 1, wherein:
wherein the diameter of the upper top surface of the pile shoe part is 1-10 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210354224.7A CN114855790A (en) | 2022-04-06 | 2022-04-06 | Novel multi-cylinder pile shoe foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210354224.7A CN114855790A (en) | 2022-04-06 | 2022-04-06 | Novel multi-cylinder pile shoe foundation |
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| Publication Number | Publication Date |
|---|---|
| CN114855790A true CN114855790A (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210354224.7A Pending CN114855790A (en) | 2022-04-06 | 2022-04-06 | Novel multi-cylinder pile shoe foundation |
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| CN (1) | CN114855790A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120230773A1 (en) * | 2011-03-09 | 2012-09-13 | Keppel Offshore & Marine Technology Centre Pte Ltd. | Skirted Foundation For Penetrating Soft Material |
| US20150354164A1 (en) * | 2014-06-09 | 2015-12-10 | Offshore Technology Development Pte Ltd | Modified Spudcan With Optimal Peripheral Skirt For Enhanced Performance Of Jackup Operations |
| CN109881670A (en) * | 2019-03-26 | 2019-06-14 | 中国石油大学(北京) | A kind of self-elevating drilling platform shoe that seabed is given up as hopeless recyclable and drilling platforms |
| CN110499747A (en) * | 2019-09-17 | 2019-11-26 | 大连理工大学 | It is a kind of to reduce the novel guiding shoe for stepping on footprint harm |
| CN112012237A (en) * | 2020-08-31 | 2020-12-01 | 河北工业大学 | Multi-cylinder reinforced composite single-pile foundation of offshore wind turbine and construction method |
| CN212153370U (en) * | 2020-03-18 | 2020-12-15 | 天津大学 | Self-elevating platform pile shoe capable of reducing pull-up resistance |
| CN112942336A (en) * | 2021-04-20 | 2021-06-11 | 中海石油(中国)有限公司 | Modular apron board pile shoe of self-elevating drilling platform and drilling platform |
-
2022
- 2022-04-06 CN CN202210354224.7A patent/CN114855790A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120230773A1 (en) * | 2011-03-09 | 2012-09-13 | Keppel Offshore & Marine Technology Centre Pte Ltd. | Skirted Foundation For Penetrating Soft Material |
| US20150354164A1 (en) * | 2014-06-09 | 2015-12-10 | Offshore Technology Development Pte Ltd | Modified Spudcan With Optimal Peripheral Skirt For Enhanced Performance Of Jackup Operations |
| CN109881670A (en) * | 2019-03-26 | 2019-06-14 | 中国石油大学(北京) | A kind of self-elevating drilling platform shoe that seabed is given up as hopeless recyclable and drilling platforms |
| CN110499747A (en) * | 2019-09-17 | 2019-11-26 | 大连理工大学 | It is a kind of to reduce the novel guiding shoe for stepping on footprint harm |
| CN212153370U (en) * | 2020-03-18 | 2020-12-15 | 天津大学 | Self-elevating platform pile shoe capable of reducing pull-up resistance |
| CN112012237A (en) * | 2020-08-31 | 2020-12-01 | 河北工业大学 | Multi-cylinder reinforced composite single-pile foundation of offshore wind turbine and construction method |
| CN112942336A (en) * | 2021-04-20 | 2021-06-11 | 中海石油(中国)有限公司 | Modular apron board pile shoe of self-elevating drilling platform and drilling platform |
Non-Patent Citations (1)
| Title |
|---|
| 赵德等: "新型多筒桩靴基础贯入过程有限元分析", 土木工程, vol. 11, no. 3, pages 299 - 305 * |
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