CN114411795A - Suction bucket foundation composite structure for clearing soil plug and reinforcing soil body in bucket - Google Patents
Suction bucket foundation composite structure for clearing soil plug and reinforcing soil body in bucket Download PDFInfo
- Publication number
- CN114411795A CN114411795A CN202210001694.5A CN202210001694A CN114411795A CN 114411795 A CN114411795 A CN 114411795A CN 202210001694 A CN202210001694 A CN 202210001694A CN 114411795 A CN114411795 A CN 114411795A
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- suction bucket
- bucket foundation
- suction
- composite structure
- foundation
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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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- Engineering & Computer Science (AREA)
- 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)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a suction bucket foundation composite structure for removing a soil plug and reinforcing soil in a bucket, which comprises a suction bucket foundation and a construction structure, wherein the construction structure comprises: the fixed support is covered outside the suction bucket foundation and is provided with a water pumping hole communicated to the inside of the suction bucket foundation; the telescopic rotating shaft penetrates through the fixed support and stretches into the suction bucket foundation, and the telescopic rotating shaft is located the stirring head is detachably arranged at one end inside the suction bucket foundation. The suction bucket foundation composite structure has the advantages of easy removal of soil plugs, high bearing capacity, capability of recycling construction structures and the like.
Description
Technical Field
The invention relates to the field of marine foundation structures, in particular to a suction bucket foundation composite structure for removing soil plugs and reinforcing soil bodies in buckets.
Background
In the world where a great amount of energy is needed and new energy is rapidly developed, the oceans have important construction and development significance due to the abundance and wide distribution of the energy, and particularly in the aspect of offshore wind power and ocean oil and gas resources, how to develop and utilize huge stored energy makes the oceans become an important field for showing the scientific and technological strength of various countries. The suction bucket is a foundation structure widely used in ocean engineering, and compared with the traditional ocean foundation structure, the suction bucket has the advantages of low cost, simplicity in installation and reusability. The suction bucket is installed by pumping water at the top of the suction bucket to form negative pressure inside the suction bucket, and the foundation penetrates into the seabed under the influence of the pressure difference between the inside and the outside of the bucket until the soil in the bucket reaches the top of the suction bucket. Due to the installation mode, the negative pressure can generate a soil plug phenomenon in the clay in the suction penetration process, so that the suction barrel is not installed in place, the characteristics of soil in the barrel are changed, and the bearing characteristics of the suction barrel are influenced finally.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, it is an object of the present invention to provide a suction bucket foundation composite structure for soil plug removal and soil reinforcement in the bucket. The suction bucket foundation composite structure has the advantages of easy removal of soil plugs, high bearing capacity, capability of recycling construction structures and the like.
In one aspect of the present invention, the present invention provides a suction bucket foundation composite structure for soil plug removal and reinforcement of soil mass in a bucket, which includes a suction bucket foundation and a construction structure, the construction structure including: the fixed support is covered outside the suction bucket foundation and is provided with a water pumping hole communicated to the inside of the suction bucket foundation; the telescopic rotating shaft penetrates through the fixed support and stretches into the suction bucket foundation, and the telescopic rotating shaft is located the stirring head is detachably arranged at one end inside the suction bucket foundation.
In the process of installing the suction bucket foundation, the suction bucket foundation composite structure firstly sinks equipment into the seabed, water is pumped through the water pumping hole to form negative pressure inside the suction bucket foundation, and the soil body of the barrel body in the barrel is stirred into a slurry state through continuous stirring inside the barrel body by the stirring head. For clearing the soil plug in the installation process of the suction bucket foundation, the position of the suction bucket foundation is a key influence factor. In the process that the suction bucket foundation is penetrated into the seabed, the fixed support provides fixed support for the suction bucket foundation, the suction bucket foundation can be always kept in contact with the surface of the seabed through the telescopic rotating shaft, the soil plug can be stirred and dispersed once being formed through the mode, and compared with the mode that stirring is carried out after more soil plugs are formed, the mode can improve the stirring effect to the maximum extent and weaken the stirring difficulty of the soil plug, so that the suction bucket foundation reaches the preset installation position, and the soil plug removing effect is improved; after the suction bucket contact installation is accomplished, the stirring head can break away from flexible rotation axis, and the equal recoverable reuse of the construction structures except stirring head. In addition, the suction bucket foundation composite structure is also beneficial to rapid consolidation of soil in the bucket, thereby enhancing the bearing capacity of the suction bucket foundation.
In addition, the suction bucket foundation for removing the soil plug and reinforcing the soil body in the bucket according to the embodiment of the invention also has the following additional technical characteristics:
in some embodiments of the present invention, a rotary seal bearing is provided at a connection of the telescopic rotary shaft and the suction bucket base.
In some embodiments of the present invention, the stirring head is detachably connected to the telescopic rotating shaft by a connecting member.
In some embodiments of the invention, the connecting member is an electromagnet.
In some embodiments of the present invention, the stirring head comprises a stirring structure selected from at least one of a rod-like structure and a sheet-like structure.
In some embodiments of the present invention, a first thread structure is disposed at a connection portion of the suction bucket foundation and the telescopic rotating shaft, and a second thread structure is disposed at an upper portion of the stirring head, wherein the first thread structure is matched with the second thread structure.
In some embodiments of the invention, the first thread formation is a female thread formation and the second thread formation is a male thread formation.
In some embodiments of the invention, the construction structure further comprises: and the rotary vibration motor is arranged on the fixed support and is positioned above the suction bucket foundation.
In some embodiments of the present invention, the suction bucket base is provided with an electromagnetic valve communicating with the inside of the suction bucket base.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of a suction bucket foundation for soil plug removal and soil consolidation within a bucket, according to one embodiment of the present invention.
Reference numerals:
10-a suction bucket foundation, 11-an electromagnetic valve, 12-a first thread structure,
20-a fixed support, 21-a water pumping hole,
30-a telescopic rotating shaft, 31-a stirring head, 32-a connecting piece, 33-a second thread structure,
40-a rotating sealed bearing, wherein the rotating sealed bearing is arranged on the rotating sealed bearing,
50-rotating vibration motor.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In one aspect of the present invention, the present invention provides a suction bucket foundation composite structure for soil plug removal and reinforcement of soil mass in a bucket, which includes a suction bucket foundation 10 and a construction structure, referring to fig. 1, the construction structure including: a fixed bracket 20 and a telescopic rotating shaft 30. The fixing bracket 20 is covered outside the suction bucket foundation 10, and the fixing bracket 20 is provided with a pumping hole 21 communicated with the inside 10 of the suction bucket foundation. The telescopic rotating shaft 30 penetrates through the fixing bracket 20 and extends into the suction bucket foundation 10, and a stirring head 31 is detachably arranged at one end of the telescopic rotating shaft 30, which is positioned in the suction bucket foundation 10.
It should be noted that the diameter and the rotation speed of the telescopic rotating shaft 30 during operation are not particularly limited, and may be determined according to the type and size of the suction bucket foundation 10.
According to some embodiments of the present invention, a rotary seal bearing 40 is provided at a connection of the telescopic rotating shaft 30 and the suction bucket base 10. By arranging the rotary seal bearing 40, it can be ensured that the inside of the suction bucket is in a sealed state in the rotating process of the telescopic rotating shaft 30, so that negative pressure can be formed.
According to some embodiments of the present invention, the stirring head 31 is detachably connected to the telescopic rotating shaft 30 through a connecting member 32. Therefore, a proper stirring structure form can be selected according to the marine soil body before the construction of the suction bucket foundation, and the stirring head 31 can be separated from the telescopic rotating shaft 30 through the connecting piece 32 after the construction of the suction bucket foundation is completed, so that other construction structures except the stirring head 31 can be recovered.
According to some embodiments of the invention, the connecting member 32 may be an electromagnet.
According to some embodiments of the present invention, the stirring head 31 comprises a stirring structure selected from at least one of a rod-like structure and a sheet-like structure. Therefore, the soil stirring effect in the installation process of the suction bucket foundation can be further improved.
According to some embodiments of the present invention, a first screw structure 12 is provided at the connection between the suction bucket foundation 10 and the telescopic rotating shaft 30, a second screw structure 33 is provided at the upper portion of the stirring head 31, and the first screw structure 12 is adapted to the second screw structure 33. Therefore, after the construction of the suction bucket foundation 10 is completed and the telescopic rotating shaft 30 is disengaged from the inside of the suction bucket foundation 10, the stirring head 31 can be connected with the first threaded structure 12 on the suction bucket foundation 10 through the second threaded structure 33, so that the inside of the suction bucket foundation 10 is in a sealed state after the construction is completed. The inventor finds that in the operation process of the suction bucket, the drainage condition of the top of the foundation can greatly affect the bearing capacity of the foundation, and the bearing capacity of the suction bucket under the working condition of non-drainage in the operation process can be improved by about 20% compared with the bearing capacity under the working condition of drainage. The bearing capacity of the suction bucket foundation 10 can be further improved by sealing the stirring head 31 with the suction bucket foundation 10 by using the first and second screw structures.
According to some embodiments of the present invention, the first thread form 12 is a female thread form and the second thread form 33 is a male thread form.
According to some embodiments of the invention, the construction structure further comprises: the vibration motor 50 is rotated. The rotary vibration motor 50 is provided on the fixing bracket 20 and is located above the suction bucket base 10. Therefore, the high-frequency vibration and impact suction barrel of the rotary vibration motor 50 can be used for contacting the internal soil body, so that the soil body is quickly solidified, and the bearing capacity of the suction barrel foundation is enhanced.
According to some embodiments of the present invention, the suction bucket base 10 is provided with a solenoid valve 11 communicated to the inside of the suction bucket base 10. In some embodiments, the solenoid valve 11 may be provided on a sidewall of the suction bucket base 10. In the installation process of the suction bucket foundation, the control electromagnetic valve 11 is opened, so that the inside of the suction bucket is provided with a sufficient water source to ensure that the slurry is stirred more sufficiently.
For convenience of understanding, the construction method of the suction bucket foundation composite structure of the present invention will be described as follows:
firstly, sinking a suction bucket foundation composite structure into the sea bottom, forming negative pressure inside the suction bucket foundation through a water pumping hole by using a vacuum pump, and then continuously stirring the soil inside a bucket body through a stirring head to stir the soil body in the bucket into a slurry state;
the fixed support is used for providing a fixed support, and when the suction bucket foundation penetrates into a sea soil body, the position of the telescopic rotating shaft is relatively fixed and can be always kept in contact with the surface of the sea bed;
the stirring head is connected with the rotary vibration shaft through a connecting piece, and the stirring head can be replaced by a proper stirring structure form according to the ocean soil body before installation;
in the process of installing the suction bucket foundation, the electromagnetic valve is controlled to be opened to ensure that the suction bucket has enough water source to ensure that the slurry is stirred more fully;
when the suction bucket foundation reaches a preset installation position, under the action of the rotary vibration motor, the soil body in the suction bucket foundation can be vibrated and flushed at high frequency, so that the soil body is quickly solidified, and the bearing capacity of the suction bucket foundation is enhanced;
after the consolidation is completed, the rotary vibration shaft and the stirring head are separated by controlling the electromagnet, so that the rotary vibration shaft, the rotary vibration motor, the rotary sealing bearing, the fixed support and the connecting piece are withdrawn and can be repeatedly used.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "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 description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. The utility model provides a soil stopper is clear away and reinforced (rfd) suction bucket foundation composite construction of soil body in the bucket which characterized in that, including suction bucket foundation and construction structures, construction structures includes:
the fixed support is covered outside the suction bucket foundation and is provided with a water pumping hole communicated to the inside of the suction bucket foundation;
the telescopic rotating shaft penetrates through the fixed support and stretches into the suction bucket foundation, and the telescopic rotating shaft is located the stirring head is detachably arranged at one end inside the suction bucket foundation.
2. The suction bucket foundation composite structure of claim 1, wherein a rotary seal bearing is provided at a junction of the telescoping rotating shaft and the suction bucket foundation.
3. The suction bucket foundation composite structure of claim 1, wherein the agitator head is removably connected to the telescoping rotating shaft by a connector.
4. The suction bucket foundation composite structure of claim 3, wherein the connector is an electromagnet.
5. The suction bucket foundation composite structure of claim 1, wherein the agitator head includes an agitator structure selected from at least one of a rod-like structure, a sheet-like structure.
6. The suction bucket foundation composite structure of claim 1, wherein a first thread structure is arranged at the connection part of the suction bucket foundation and the telescopic rotating shaft, a second thread structure is arranged at the upper part of the stirring head, and the first thread structure is matched with the second thread structure.
7. The suction bucket foundation composite structure of claim 6, wherein the first thread form is a female thread form and the second thread form is a male thread form.
8. The suction bucket foundation composite structure of claim 1, wherein the construction structure further comprises: and the rotary vibration motor is arranged on the fixed support and is positioned above the suction bucket foundation.
9. The suction bucket foundation composite structure of claim 1, wherein the suction bucket foundation is provided with an electromagnetic valve communicating with the interior of the suction bucket foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210001694.5A CN114411795B (en) | 2022-01-04 | 2022-01-04 | Suction bucket foundation composite structure for clearing soil plug and reinforcing soil body in bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210001694.5A CN114411795B (en) | 2022-01-04 | 2022-01-04 | Suction bucket foundation composite structure for clearing soil plug and reinforcing soil body in bucket |
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| Publication Number | Publication Date |
|---|---|
| CN114411795A true CN114411795A (en) | 2022-04-29 |
| CN114411795B CN114411795B (en) | 2023-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210001694.5A Active CN114411795B (en) | 2022-01-04 | 2022-01-04 | Suction bucket foundation composite structure for clearing soil plug and reinforcing soil body in bucket |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115652985A (en) * | 2022-12-26 | 2023-01-31 | 山东科技大学 | Composite pile-barrel foundation and construction method thereof |
| WO2024119331A1 (en) * | 2022-12-05 | 2024-06-13 | 浙大城市学院 | Bucket foundation with resistance reduction system, and cutter suction penetration installation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20160059570A (en) * | 2014-11-18 | 2016-05-27 | 현대건설주식회사 | Suction bucket foundation for decreasing resistance of seawater and adjusting verticality, installing and lifting method |
| CN107724420A (en) * | 2017-09-22 | 2018-02-23 | 浙江大学 | A kind of new suction barrel shape foundation structure and its installation method for silt sea bed |
| CN107905238A (en) * | 2017-10-19 | 2018-04-13 | 太原理工大学 | A kind of soil plug pullout type suction anchor foundation and its construction method |
| CN111472382A (en) * | 2020-04-28 | 2020-07-31 | 中山大学 | Suction bucket foundation with uplift-resistant steel pipe pile and installation method thereof |
-
2022
- 2022-01-04 CN CN202210001694.5A patent/CN114411795B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160059570A (en) * | 2014-11-18 | 2016-05-27 | 현대건설주식회사 | Suction bucket foundation for decreasing resistance of seawater and adjusting verticality, installing and lifting method |
| CN107724420A (en) * | 2017-09-22 | 2018-02-23 | 浙江大学 | A kind of new suction barrel shape foundation structure and its installation method for silt sea bed |
| CN107905238A (en) * | 2017-10-19 | 2018-04-13 | 太原理工大学 | A kind of soil plug pullout type suction anchor foundation and its construction method |
| CN111472382A (en) * | 2020-04-28 | 2020-07-31 | 中山大学 | Suction bucket foundation with uplift-resistant steel pipe pile and installation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024119331A1 (en) * | 2022-12-05 | 2024-06-13 | 浙大城市学院 | Bucket foundation with resistance reduction system, and cutter suction penetration installation method |
| CN115652985A (en) * | 2022-12-26 | 2023-01-31 | 山东科技大学 | Composite pile-barrel foundation and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN114411795B (en) | 2023-02-17 |
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