LU501903B1 - Spiral Drilling Type Bucket Foundation Penetration Device and Penetration Method - Google Patents
Spiral Drilling Type Bucket Foundation Penetration Device and Penetration Method Download PDFInfo
- Publication number
- LU501903B1 LU501903B1 LU501903A LU501903A LU501903B1 LU 501903 B1 LU501903 B1 LU 501903B1 LU 501903 A LU501903 A LU 501903A LU 501903 A LU501903 A LU 501903A LU 501903 B1 LU501903 B1 LU 501903B1
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- LU
- Luxembourg
- Prior art keywords
- bucket foundation
- top surface
- screw pile
- screw
- foundation
- Prior art date
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- 238000005553 drilling Methods 0.000 title claims abstract description 42
- 230000035515 penetration Effects 0.000 title claims description 39
- 238000000034 method Methods 0.000 title claims description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 239000002689 soil Substances 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000005457 optimization Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/28—Placing of hollow pipes or mould pipes by means arranged inside the piles or pipes
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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
- E02D27/525—Submerged foundations, i.e. submerged in open water using elements penetrating the underwater ground
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/22—Placing by screwing down
-
- 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
-
- 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
- E02D5/22—Piles
- E02D5/56—Screw piles
Landscapes
- 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)
- Earth Drilling (AREA)
Abstract
The invention comprises a bucket foundation and a screw pile drilling mechanism. The top surface of the bucket foundation is provided with a plurality of reserved holes; A plurality of threaded holes are arranged around the reserved hole; The screw pile drilling mechanism comprises a plurality of screw piles; A plurality of screw piles correspond to a plurality of reserved holes; The screw pile can be rotationally connected with the bucket foundation and driven by a driving assembly. According to the invention, a spiral drilling type is adopted to sink the bucket foundation, and the screw pile is installed through the reserved hole position of the bucket foundation, so that the downward pressure of the screw pile blade rotating in the soil is transmitted to the top surface of the bucket foundation, and the bucket foundation is mechanically installed.
Description
DESCRIPTION LU501903 Spiral Drilling Type Bucket Foundation Penetration Device and Penetration Method
TECHNICAL FIELD The invention relates to the technical field of offshore wind power engineering, and in particular to a spiral drilling type bucket foundation penetration device and penetration method.
BACKGROUND With the development of social productive forces and world economy, the demand of human beings for energy is getting higher and higher. Traditional energy is a non-renewable resource, and with the decrease of global reserves and the increase of demand, the mining cost increases sharply, making it difficult to meet the long-term energy demand of economic development and population expansion. As the development of onshore wind energy has become saturated and the exploitable land resources are gradually decreasing, offshore wind power has become the main direction of wind power development. There are various forms of offshore wind power foundation, among which single pile foundation is widely used in offshore wind turbine foundation because of its simple structure, relatively mature bearing capacity calculation method and bearing mechanism.
As the single unit capacity of offshore wind turbine is large and the structure height is extremely high, the wind turbine under construction has reached 12MW and the height of wind turbine is 260m, so the foundation structure needs to bear huge overturning load. If the traditional single pile foundation continues to be adopted, its size will continue to increase. At present, the diameter of offshore wind power single pile foundation has reached about 8m. The super-large diameter single pile foundation poses a great challenge to the construction, and the construction cost also rises sharply, thus obviously reducing the economic benefits.
The bucket foundation is a wide and shallow foundation structure, which has good overturning resistance compared with the traditional single pile foundation, and is very suitable for large-capacity offshore wind power with large horizontal load. However, the bucket foundation is generally installed by negative pressure penetration. Faced with the complicated situation of the marine foundation soil layer, the bucket foundation cannot be installed in the designated position due to the soil plug effect caused by the penetration, and then the negative pressure penetration fails from time to time. At present, there is no better solution to the penetration of bucket foundation except negative pressure penetration.
The traditional bucket foundation is installed by negative pressure penetration device. Dye, 1903 to air tightness and other technical reasons, the pressure between the compartments is difficult to control, leveling is difficult, and construction takes a long time. Moreover, the negative pressure penetration of bucket foundation is difficult to reach the predetermined position due to the complicated soil layer.
SUMMARY The purpose of the present invention is to provide a penetration device and a penetration method of a spiral drilling bucket foundation, so as to solve the problems existing in the prior art.
A spiral drilling type bucket foundation penetration device comprises: A bucket foundation, the top surface of which is sealed and the bottom surface is transparent, The edge of the top surface of the bucket foundation is provided with a plurality of reserved holes along the circumferential direction; The top surface of the bucket foundation is provided with a plurality of threaded holes near the reserved holes.
A screw pile drilling mechanism, wherein the screw pile drilling mechanism comprises a plurality of vertically arranged screw piles; The screw piles correspond to the reserved holes one by one; The top of the screw pile is provided with a driving part; The screw pile passes through the reserved hole from top to bottom; The driving part is detachably mounted on the top surface of the bucket foundation through a plurality of bolts.
Preferably, the driving part comprises a worm gear fixedly sleeved on the top of the outer wall of the screw pile; The outer wall of the screw pile is sleeved with a bearing cover at the position above the worm wheel, The bottom surface of the bearing cover is rotationally connected with the top end of the worm wheel through an upper tapered roller bearing; The top of that out wall of the screw pile is provided with thread and is connected with a lock nut by threads; The outer wall of the screw pile is sleeved with a bearing seat at the position below the worm wheel; The top surface of the bearing seat is rotationally connected with the bottom end of the worm wheel through a lower tapered roller bearing; The top surface of the bearing seat is fixedly connected with a steel shell at the position outside the worm wheel, and a rotating assembly is mounted on the steel shell; The rotating assembly is in transmission connection with the worm gear; The bearing seat is vertically provided with a plurality of through holes; The through holes correspond to the threaded holes one by one; The bearing seat is detachably installed on the top surface of the bucket foundation through a plurality of bolts.
Preferably, the rotating assembly comprises a hydraulic motor fixedly mounted on the steel 50 1903 shell; The output shaft of the hydraulic motor is fixedly connected with a worm; The worm gear is meshed with the worm.
Preferably, lifting hangers are arranged above a plurality of spiral piles; The top end of the screw pile is coaxially and fixedly connected with a sliding rod; A plurality of slide bars penetrate through the lifting hanger from bottom to top and are fixedly connected with a limiting cap; The top surface of that lifting hanger is fixedly connected with a plurality of lifting lugs.
Preferably, the middle of the top surface of the bucket foundation is fixedly provided with an inclination sensor.
Preferably, positioning pins are fixedly connected to the positions of the top surface of the bucket foundation on both sides of the reserved hole; Two sides of the top surface of the bearing seat are provided with positioning holes at positions corresponding to the positioning pins.
Preferably, the steel shell is sealed and fixedly connected with the bearing seat; The steel shell is rotationally connected with the side wall of the bearing cover through a mechanical seal.
A penetration method of a spiral drilling type bucket foundation penetration device is completed by using the spiral drilling type bucket foundation penetration device, and comprises the following steps: 1) placing the bucket foundation on the surface of marine foundation soil; 2) moving the screw pile drilling mechanism to make all the screw piles pass through the corresponding reserved holes, and placing the bottom end of the screw piles on the soil surface; 3) turn on the hydraulic motor for driving, the screw pile will drill into the soil and move downwards, and turn off the hydraulic motor when the bottom surface of the bearing seat contacts the top surface of the bucket foundation; 4) the bearing seat is fixedly connected with the top surface of the bucket foundation by bolts; 5) driving the hydraulic motor, the screw pile generates downward pressure to drive the bucket foundation to sink, and simultaneously adjusting the driving speeds of different hydraulic motors in real time according to the inclination sensor on the top surface of the bucket foundation to level the bucket foundation; 6) stop the hydraulic motor after the bucket foundation is installed to a predetermined depth;
7) when the screw pile drilling mechanism needs to be recovered, remove the bolts, 1903 connecting the bearing seat with the top surface of the bucket foundation, and lift the screw pile drilling mechanism for recovery.
Preferably, in step 2), the lifting hanger and the screw pile drilling mechanism are lifted and moved to the top of the bucket foundation by a crane through a lifting lug, and then lowered, so that all the screw piles pass through the corresponding reserved holes, and the bottom ends of the screw piles are placed on the soil surface.
The invention discloses the following technical effects:
1. The invention can effectively convert the downward pressure in the rotating process of the screw pile into the penetration resistance of the bucket foundation in the marine foundation soil, and realize the automatic leveling of the bucket foundation in the installation and penetration process of the marine foundation. Moreover, the screw pile foundation itself can provide partial bearing capacity, which ensures the convenience and safety of the bucket foundation installation, reduces the size of the bucket foundation and saves the construction cost.
2. In the invention, the spiral drilling type is adopted to sink the bucket foundation, and the screw pile is installed through the reserved hole position of the bucket foundation, so that the downward pressure of the screw pile blade rotating in the soil is transmitted to the top surface of the bucket foundation, and the bucket foundation is mechanically installed. The downforce can be obtained by the calculation method of the downforce of the screw pile, and the diameter of the screw pile, the number and diameter of blades can be adjusted according to the geological survey data to meet the downforce demand. At the same time, the dynamic leveling of bucket foundation during installation can be realized by controlling the driving force of multiple hydraulic motors and matching the measurement data of inclination sensor, which solves the disadvantages of negative pressure penetration mode.
3. The spiral drilling bucket foundation penetration device is not only used as a penetration installation device, but also the screw pile can be used as a form of pile foundation, which can improve the vertical bearing capacity of bucket foundation and the overall resistance to horizontal, bending moment and overturning, and realize the effective combination of the two foundations. While improving the bearing capacity reserve of bucket foundation, it can reduce the size of bucket foundation and reduce the construction cost.
In order to more clearly explain the embodiments of the present invention or the technical 50 1903 solutions in the prior art, the following will briefly introduce the drawings that need to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without any creative labor.
Fig. 1 is an axial view of the present invention; Fig. 2 is an axial view of the bucket foundation of the present invention; Fig. 3 is an axial view of the screw pile drilling mechanism of the present invention; Fig. 4 is a plan view of the screw pile drilling mechanism of the present invention; Fig. 5 is a cross-sectional view A-A in fig. 4 of the present invention.
Icons: 1. bucket foundation; 2. reserved hole; 3. threaded hole; 4. screw pile; 5. worm gear;
6. bearing cover; 7. upper tapered roller bearing; 8. lock nut; 9. bearing seat; 10. lower tapered roller bearing; 11. steel shell; 12. hydraulic motor; 13. worm; 14. through hole; 15. lifting hanger;
16. slide bar; 17. limiting cap; 18. inclination sensor; 19. positioning pin; 20. positioning hole; 21. lifting lug.
DESCRIPTION OF THE INVENTION The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, but not all of them. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in the field without creative labor are within the scope of the present invention.
In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be explained in further detail below with reference to the drawings and detailed description.
Referring to Figures 1-5, a spiral drilling type bucket foundation penetration device includes: A bucket foundation 1, the top surface of which is sealed and the bottom surface is transparent; The edge of the top surface of the bucket foundation 1 is provided with a plurality of reserved holes 2 along the circumferential direction; The top surface of the bucket foundation 1 is provided with a plurality of threaded holes 3 near the reserved holes 2.
A screw pile drilling mechanism which comprises a plurality of vertically arranged screw 501903 piles 4; À plurality of screw piles 4 are in one-to-one correspondence with a plurality of reserved holes 2; The top of the screw pile 4 is provided with a driving part, The screw pile 4 passes through the reserved hole 2 from top to bottom; The driving part is detachably installed on the top surface of the bucket foundation 1 through a plurality of bolts.
In a further optimization scheme, the driving part comprises a worm gear 5 fixedly sleeved on the top of the outer wall of the screw pile 4; À bearing cover 6 is sleeved on the outer wall of the screw pile 4 above the worm wheel 5; The bottom surface of the bearing cover 6 1s rotatably connected with the top end of the worm wheel 5 through an upper tapered roller bearing 7; The top of the outer wall of the screw pile 4 is provided with threads and 1s connected with a lock nut 8 by threads; A bearing seat 9 is sleeved on the outer wall of the screw pile 4 below the worm wheel 5; The top surface of the bearing seat 9 is rotatably connected with the bottom end of the worm gear 5 through a lower tapered roller bearing 10; A steel shell 11 is fixedly connected to the top surface of the bearing seat 9 at the outer side of the worm gear 5, and a rotating assembly is mounted on the steel shell 11; The rotating assembly is in transmission connection with the worm gear 5; The bearing seat 9 is vertically provided with a plurality of through holes 14; The through holes 14 correspond to the threaded holes 3 one by one; The bearing seat 9 is detachably installed on the top surface of the bucket foundation 1 through a plurality of bolts.
The bucket foundation 1 is a precast reinforced concrete foundation; The tip of the screw pile 4 faces downwards, and the diameter of the reserved hole 2 needs to ensure that the screw pile 4 can normally pass through; The bearing seat 9 can be fixed on the top surface of the bucket foundation 1 by bolts, and then the positions of the steel shell 11 and the bearing seat 9 will be fixed. The bottom surface of the lock nut 8 abuts against the top surface of the bearing cap 6, and the bearing cap 6 tightly presses the top surface of the upper tapered roller bearing 7 and rotates with the rotation of the screw pile 4, so that the upper tapered roller bearing 7 can be prevented from falling off the top of the screw pile 4; The assembly drives the screw pile 4 to rotate through the worm gear 5, and the screw pile 4 will drill into the soil and continue to move downward, so that the bearing seat 9 will exert downward pressure on the top surface of the bucket foundation 1, and then the bucket foundation 1 will be pressed into the soil. A plurality of screw piles 4 rotate at the same time and cooperate with each other to ensure the level of the bucket foundation 1.
In a further optimization scheme, the rotating assembly comprises a hydraulic motor 1350 1903 fixedly mounted on a steel casing 11; The output shaft of the hydraulic motor 12 is fixedly connected with a worm 13; The worm gear 5 meshes with the worm 13.
The hydraulic motor 12 is horizontally arranged to drive the worm 13 to rotate, thereby driving the worm gear 5 to rotate.
In the further optimization scheme, a lifting hanger 15 is arranged above a plurality of screw piles 4; The top end of the screw pile 4 is coaxially and fixedly connected with a sliding rod 16; A plurality of sliding rods 16 penetrate through the lifting hanger 15 from bottom to top and are fixedly connected with a limiting cap 17; A plurality of lifting lugs 21 are fixedly connected to the top surface of the lifting hanger 15.
The lifting hanger 15 is used to connect all the screw piles 4 together, so that all the screw piles 4 can move at the same time, which is convenient for hoisting, and the screw piles 4 can rotate without affecting the lifting hanger 15. When the lifting hanger 15 rises, the top surface will abut against the bottom surface of the limit cap 17, and then the screw pile 4 will be lifted and moved.
In the further optimization scheme, an inclination sensor 18 is fixedly installed in the middle of the top surface of the bucket foundation 1, which can detect the levelness of the bucket foundation 1 in real time; When one side becomes lower, it means that the descending speed of the screw pile 4 corresponding to that side is faster. Changing the rotating speed of the corresponding hydraulic motor 12 to slow down the rotating speed of the screw pile 4 will slow down the descending speed of the screw pile 4, while the descending speed of other screw piles 4 will remain unchanged, so that the bucket foundation 1 will be leveled again. The tilt sensor 18 and the hydraulic motor 12 are electrically connected with a controller fixedly installed above the water surface.
In the further optimization scheme, positioning pins 19 are fixedly connected to the positions of the top surface of the bucket foundation 1 on both sides of the reserved hole 2; Locating holes 20 are formed on both sides of the top surface of the bearing seat 9 at positions corresponding to the locating pins 19.
The positioning pin 19 and the positioning hole 20 can help the operator to quickly correspond all the threaded holes 3 to all the through holes 14 and fix them by bolts.
Further optimization scheme, the steel shell 11 is sealed and fixedly connected with the bearing seat 9; The steel casing 11 is rotationally connected with the side wall of the bearing, 1903 cover 6 through mechanical seals. The steel casing 11 wraps the hydraulic motor 12, the worm gear 5 and the worm 13, which can prevent seawater from entering the steel casing 11 and causing corrosion damage to the hydraulic motor 12, the worm gear 5 and the worm 13.
A penetration method of a spiral drilling type bucket foundation penetration device comprises the following steps: 1) placing the bucket foundation 1 on the surface of marine foundation soil; 2) moving the screw pile drilling mechanism so that all the screw piles 4 pass through the corresponding reserved holes 2, and placing the bottom end of the screw piles 4 on the soil surface; 3) the hydraulic motor 12 is turned on for driving, the screw pile 4 is drilled into the soil and moves downwards, and the hydraulic motor 12 is turned off when the bottom surface of the bearing seat 9 contacts the top surface of the bucket foundation 1; 4) the bearing seat 9 is fixedly connected with the top surface of the bucket foundation 1 by bolts; 5) drive the hydraulic motor 12, the downward pressure generated by the screw pile 4 drives the bucket foundation 1 to sink, and adjust the driving speeds of different hydraulic motors 12 in real time according to the inclination sensor 18 on the top surface of the bucket foundation 1 to level the bucket foundation 1; 6) stop the hydraulic motor 12 after the bucket foundation 1 is installed to a predetermined depth; 7) when the screw pile drilling mechanism needs to be recovered, remove the bolts connecting the bearing seat 9 with the top surface of the bucket foundation 1, and lift the screw pile drilling mechanism for recovery.
Further optimization scheme, in step 2), the lifting hanger 15 and the screw pile drilling mechanism are lifted and moved to the top of the bucket foundation 1 by a crane through the lifting lugs 21, and then lowered, so that all the screw piles 4 pass through the corresponding reserved holes 2, and the bottom ends of the screw piles 4 are placed on the soil surface.
In the description of the present invention, it should be understood that the terms longitudinal, transverse, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inside and outside, these indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, only for the convenience E150 1903 describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
The above-mentioned embodiments only describe the preferred mode of the invention, but do not limit the scope of the invention. On the premise of not departing from the design spirit of the invention, all kinds of modifications and improvements made by ordinary technicians in the field to the technical scheme of the invention shall fall within the scope of protection determined by the claims of the invention.
Claims (9)
1. À spiral drilling type bucket foundation penetration device, which is characterized by comprising: a bucket foundation (1) with a sealed top surface and a transparent bottom surface; a plurality of reserved holes (2) are arranged at the edge of the top surface of the bucket foundation (1) along the circumferential direction; the top surface of the bucket foundation (1) is provided with a plurality of threaded holes (3) near the reserved holes (2); a screw pile drilling mechanism, which comprises a plurality of vertically arranged screw piles (4); the screw piles (4) correspond to the reserved holes (2) one by one; the top of the screw pile (4) is provided with a driving part; the screw pile (4) passes through the reserved hole (2) from top to bottom; the driving part is detachably mounted on the top surface of the bucket foundation (1) through a plurality of bolts.
2. The spiral drilling type bucket foundation penetration device according to claim 1, which is characterized in that the driving part comprises a worm wheel (5) fixedly sleeved on the top of the outer wall of the screw pile (4); a bearing cover (6) is sleeved on the position of the outer wall of the screw pile (4) above the worm wheel (5); the bottom surface of the bearing cover (6) is rotationally connected with the top end of the worm wheel (5) through an upper tapered roller bearing (7); the top of the outer wall of the screw pile (4) is provided with a thread and is connected with a lock nut (8) in a threaded way; a bearing seat (9) is sleeved on the outer wall of the screw pile (4) at the position below the worm wheel (5); the top surface of the bearing seat (9) is rotationally connected with the bottom end of the worm wheel (5) through a lower tapered roller bearing (10); a steel shell (11) is fixedly connected to the top surface of the bearing seat (9) at the position outside the worm wheel (5), and a rotating assembly is mounted on the steel shell (11); the rotating assembly is in transmission connection with the worm wheel (5); the bearing seat (9) is vertically provided with a plurality of through holes (14); a plurality of through holes (14) correspond to a plurality of threaded holes (3) one by one; the bearing seat (9) is detachably installed on the top surface of the bucket foundation (1) through a plurality of bolts.
3. The spiral drilling type bucket foundation penetration device according to claim 2, which is characterized in that the rotating assembly comprises a hydraulic motor (12) fixedly mounted on the steel shell (11); the output shaft of the hydraulic motor (12) is fixedly connected with a worm (13); the worm wheel (5) is meshed with the worm (13).
4. The spiral drilling type bucket foundation penetration device according to claim 2, whiçh 50 1903 is characterized in that a lifting hanger (15) is arranged above a plurality of screw piles (4); the top end of the screw pile (4) is coaxially and fixedly connected with a slide bar (16); a plurality of sliding rods (16) penetrate through the lifting hanger (15) from bottom to top and are fixedly connected with a limiting cap (17); the top surface of the lifting hanger (15) is fixedly connected with a plurality of lifting lugs (21).
5. The spiral drilling type bucket foundation penetration device according to claim 2, which is characterized in that an inclination sensor (18) is fixedly installed in the middle of the top surface of the bucket foundation (1).
6. The spiral drilling type bucket foundation penetration device according to claim 2, which is characterized in that positioning pins (19) are fixedly connected to the positions of the top surface of the bucket foundation (1) located at both sides of the reserved hole (2); positioning holes (20) are formed at the positions corresponding to the positioning pins (19) on both sides of the top surface of the bearing seat (9).
7. The spiral drilling type bucket foundation penetration device according to claim 2, which is characterized in that the steel shell (11) is sealed and fixedly connected with the bearing seat (9); the steel shell (11) is rotationally connected with the side wall of the bearing cover (6) through a mechanical seal.
8. A penetration method of spiral drilling type bucket foundation penetration device, which is characterized in that the method is finished by the spiral drilling type bucket foundation penetration device according to any one of claims 1-7, comprising the following steps: 1) placing a bucket foundation (1) on the surface of marine foundation soil; 2) moving the screw pile drilling mechanism to make all the screw piles (4) pass through the corresponding reserved holes (2), and placing the bottom ends of the screw piles (4) on the soil surface; 3) turn on the hydraulic motor (12) to drive, the screw pile (4) will drill into the soil and move downwards, and turn off the hydraulic motor (12) when the bottom of the bearing seat (9) contacts the top surface of the bucket foundation (1); 4) the bearing seat (9) is fixedly connected with the top surface of the bucket foundation (1) by bolts; 5) drive the hydraulic motor (12), the downward pressure generated by the screw pile (4)
drives the bucket foundation (1) to sink, and adjust the driving speed of different hydraulie,501903 motors (12) in real time according to the inclination sensor (18) on the top surface of the bucket foundation (1) to level the bucket foundation (1); 6) stop the hydraulic motor (12) after the bucket foundation (1) is installed to a predetermined depth; 7) when the screw pile drilling mechanism needs to be recovered, remove the bolts connecting the bearing seat (9) with the top surface of the bucket foundation (1), and lift the screw pile drilling mechanism for recovery.
9. The penetration method of spiral drilling type bucket foundation penetration device according to claim 8, which is characterized in that in step 2), the lifting hanger (15) and the screw pile drilling mechanism are lifted and moved to the top of the bucket foundation (1) by a crane through a lifting lug (21), and then lowered, so that all the screw piles (4) pass through the corresponding reserved holes (2), and the bottom ends of the screw piles (4) are placed on the soil surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU501903A LU501903B1 (en) | 2022-04-22 | 2022-04-22 | Spiral Drilling Type Bucket Foundation Penetration Device and Penetration Method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU501903A LU501903B1 (en) | 2022-04-22 | 2022-04-22 | Spiral Drilling Type Bucket Foundation Penetration Device and Penetration Method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU501903B1 true LU501903B1 (en) | 2022-10-24 |
Family
ID=83743799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU501903A LU501903B1 (en) | 2022-04-22 | 2022-04-22 | Spiral Drilling Type Bucket Foundation Penetration Device and Penetration Method |
Country Status (1)
| Country | Link |
|---|---|
| LU (1) | LU501903B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220396926A1 (en) * | 2021-06-10 | 2022-12-15 | Triton Systems, Inc. | Group anchor system, subsea installation system, method for using and installing same |
| US12330752B2 (en) | 2019-11-22 | 2025-06-17 | Triton Systems, Inc. | Helical anchor group installation system |
-
2022
- 2022-04-22 LU LU501903A patent/LU501903B1/en active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12330752B2 (en) | 2019-11-22 | 2025-06-17 | Triton Systems, Inc. | Helical anchor group installation system |
| US20220396926A1 (en) * | 2021-06-10 | 2022-12-15 | Triton Systems, Inc. | Group anchor system, subsea installation system, method for using and installing same |
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Effective date: 20221024 |