CN113897959A - Underwater positioning guide frame for offshore wind power foundation pile sinking and pile sinking construction method - Google Patents
Underwater positioning guide frame for offshore wind power foundation pile sinking and pile sinking construction method Download PDFInfo
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- CN113897959A CN113897959A CN202111148945.4A CN202111148945A CN113897959A CN 113897959 A CN113897959 A CN 113897959A CN 202111148945 A CN202111148945 A CN 202111148945A CN 113897959 A CN113897959 A CN 113897959A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/04—Guide devices; Guide frames
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/06—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers for observation while placing
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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
- E02D27/50—Anchored foundations
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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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- 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
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses an underwater positioning guide frame for offshore wind power foundation pile sinking and a pile sinking construction method. The guide frame is high in structural strength and stable in work, the guide measuring cylinder can effectively limit and guide the engineering pile, the upper structure can greatly reduce the plane span of a water surface structure, the pile sinking construction efficiency can be effectively improved by the aid of the construction method, and the accuracy of the pile sinking is greatly guaranteed.
Description
Technical Field
The invention relates to offshore wind power installation equipment, in particular to an auxiliary device used in pile sinking operation of an offshore wind power foundation and a using method thereof.
Background
Offshore wind power generation has been widely used as a novel and clean power generation mode, but with the increasing use number, a large number of offshore submerged areas are gradually saturated, and only development towards offshore deep water areas can be gradually carried out. On the other hand, with the increase of the water depth of the wind power project site, the wind power foundation used in the shallow water area cannot be applied and satisfied. At present, wind power foundations in deep water areas are mostly built in a four-pile jacket foundation mode, but guide frames used for pile sinking of the foundation conventionally have the problems of complex structure, huge weight, large distance between central shafts, high construction cost and the like, the difficulty of offshore construction and the requirements on operating ships are greatly increased, the lack of operable construction ships even becomes a main construction difficulty, and the problem that how to reduce the construction difficulty under the existing ship resource conditions is urgent is solved.
Disclosure of Invention
The invention aims to provide an underwater positioning guide frame for offshore wind power foundation pile sinking and a construction method thereof, so as to meet the requirement of the wind power foundation in construction in a deep water area and reduce the requirement of ship model selection and the construction difficulty.
The underwater positioning guide frame for the offshore wind power foundation pile sinking comprises a main body rigid frame placed underwater, wherein a central suspension rod extending above the water surface is installed at the top end of the central position of the main body rigid frame, a working platform is arranged at the top of the central suspension rod, a bottom sitting device for fixing the main body rigid frame on the seabed is installed at the bottom of the main body rigid frame, a guide measuring cylinder for guiding a foundation pile is installed at the outer side of the main body rigid frame, openings are formed in two ends of the guide measuring cylinder, and a guide enclosing plate for guiding an engineering pile is installed at the opening of the top of the guide measuring cylinder.
The underwater positioning guide frame for the offshore wind power foundation pile sinking comprises a base device, a plurality of suction anchors, a pump prying block and a communication pipe, wherein the suction anchors are arranged at the bottom of a main rigid frame; the guide measuring cylinder is arranged above the outer side between the adjacent suction anchors.
The main body rigid frame comprises a main frame, a guide frame and a top frame, the main frame is in a cuboid shape with a square top surface and a square bottom surface, and the suction anchor is connected to the bottom of the main frame; the guide frame is arranged on the side edge of the main frame and connected with the guide measuring cylinder, and the top frame is arranged at the top of the main frame and connected with the central suspender.
The pile sinking construction method comprises the following steps:
A. placing an underwater beacon on the guide measuring cylinder, installing a positioning device at a working platform at the top of the central suspender, and installing the pump prying block on a pump prying block placing platform;
B. the main body rigid frame is hoisted to a set position required by offshore wind power foundation pile sinking, and the hoisting position of the main body rigid frame is positioned through a positioning system and an underwater beacon;
C. after the main body rigid frame is hung in place, recovering the pump prying blocks, and then performing pile inserting operation; in the pile inserting process, a remote control unmanned submersible is used for carrying out opening searching and pile feeding, the engineering pile is guided to an inlet of a guide measuring cylinder, and then the amplitude of the crane is adjusted to lower the engineering pile;
D. all engineering piles penetrate through the guide measuring cylinder and then stop self-sinking, the underwater beacons are recovered, and pile sinking operation is carried out;
E. and after the engineering pile is monitored to be sunk to a set elevation through the video real-time monitoring device, the pump prying block is reinstalled and drives the suction anchor to be separated from the seabed so as to be fixed with the seabed, and then the underwater positioning guide frame is recovered to complete pile sinking construction.
According to the underwater positioning guide frame for offshore wind power foundation pile sinking and the pile sinking construction method, the suction anchor on the underwater positioning guide frame is utilized to fix the main body rigid frame on the seabed, then the guiding measuring cylinder on the main body rigid frame is utilized to limit and guide the engineering pile, and the guiding enclosing plate on the guiding measuring cylinder can increase the guiding effect of the guiding enclosing plate, so that the lowering offset caused by emergency of sea current or delayed amplitude variation of a crane when the engineering pile is positioned at the top of the guiding measuring cylinder and is lowered is effectively avoided; the connecting structure of each rod piece of the main rigid frame is stable, the deep water area has certain self-storage capacity under complex sea conditions, larger external load can be borne, and the service life is longer; in addition, the main body rigid frame adopts the top frame and the central suspension rod as upper structures, so that the plane span of a water surface structure can be greatly reduced, the problems of harsh requirements on the span and the hanging weight of a main operation ship, complex construction procedures and the like in the construction of a large-span four-pile foundation in a deep water area are solved, and the working platform is arranged at the top of the central suspension rod and used for collecting and storing underwater cable pipelines and positioning measurement equipment and acquiring the elevation position information of the top platform; and meanwhile, no matter the main body rigid frame is hoisted or the pile inserting and sinking of the engineering pile are carried out, the levelness and the verticality are monitored by the underwater positioning equipment and the measuring equipment, and the accuracy of pile sinking can be greatly ensured.
Drawings
Fig. 1 is a schematic structural view of an underwater positioning guide frame for offshore wind power foundation pile sinking.
Fig. 2 is a schematic view of the structure of the guide measuring cylinder.
Fig. 3 is a top view of the underwater positioning guide frame for sinking the offshore wind power foundation shown in fig. 1.
Fig. 4 is a side view of the offshore wind power foundation pile sinking underwater positioning guide frame in the direction of a shown in fig. 3.
Fig. 5 is a side view of the underwater positioning guide frame for sinking the pile of the offshore wind power foundation shown in fig. 3 in the direction of B.
Detailed Description
Offshore wind power basis pile sinking is with location leading truck under water, including placing in the main part rigid frame under water, the top that the main part rigid frame central point put is installed and is extended to the central jib 4 of surface of water top, the top of central jib is provided with work platform 41, the bottom of main part rigid frame is installed and is fixed in the device of sitting on the seabed with it, the outside department of main part rigid frame installs the direction measuring cylinder 6 that leads the basis stake, the direction bounding wall 7 that leads is installed to the both ends opening and the top opening part of direction measuring cylinder.
The underwater positioning guide frame for the offshore wind power foundation pile sinking comprises a base device, a plurality of suction anchors and a pump pry block placing platform, wherein the suction anchors 5 are installed at the bottom of a main body rigid frame, the pump pry block placing platform 9 is used for placing pump pry blocks for driving the suction anchors to work, and the pump pry blocks are connected with the suction anchors through a communicating pipe with a pipe valve; the guide measuring cylinder 6 is arranged above the outer side between adjacent suction anchors 5.
Four suction anchors are uniformly arranged at the bottom of the main body rigid frame along the circumferential direction, the joints between the suction anchors and the main body rigid frame are taken as stress load concentration points in the structure, meanwhile, a plurality of reinforcing plates 8 are arranged at the joints along the circumferential direction, and the two side edges of each reinforcing plate are respectively connected with the top surface of the suction anchor and the side surface of the bottom of the main body rigid frame. In addition, a pump prying block placing platform for detachably placing the pump prying blocks is arranged on the main body rigid frame, each suction anchor is connected with the pump prying block through a communicating pipe with a pipe valve, centralized control of four valves and one pump is achieved, and the four suction anchors can be driven to work through one pump.
The underwater positioning guide frame for the offshore wind power foundation pile sinking comprises a main body rigid frame, a main body rigid frame and a suction anchor, wherein the main body rigid frame comprises a main frame 1, a guide frame 2 and a top frame 3, the top surface and the bottom surface of the main frame are square cuboid, and the suction anchor 5 is connected to the bottom of the main frame; the guide frame is arranged on the side edge of the main frame and connected with the guide measuring cylinder 6, and the top frame is arranged on the top of the main frame and connected with the central suspender 4.
The main frame 1 comprises main force rods 11 connected with the suction anchor 3 along the vertical arrangement and the bottom, the four main force rods are distributed at four vertical edges of the cuboid, connecting rods 12 horizontally arranged are connected between the adjacent main force rods along the same horizontal plane, the middle parts of the adjacent connecting rods on the same horizontal plane are connected through transverse supporting rods 13, and inclined supporting rods 14 obliquely arranged are further connected between the adjacent main force rods. The connecting rod 12 comprises an upper connecting rod, a middle connecting rod and a lower connecting rod which are connected to the top end, the middle part and the bottom end of the main force rod 11; the inclined stay bar 14 comprises an upper inclined stay bar of which the connecting end of the main force bar and the upper connecting bar extends to the middle part of the middle connecting bar, and a lower inclined stay bar of which the connecting end of the main force bar and the middle connecting bar extends to the middle part of the lower connecting bar. In addition, a straight stay bar 15 is connected between the middle part of the upper connecting rod and the middle connecting rod. The main frame has stable structure and can meet the construction requirement of pile sinking.
The guide frame 2 comprises a plurality of guide support rods 21 which are connected with the main force rod 11 and the guide measuring cylinder 6, the guide support rods are obliquely arranged, and the guide support rods are arranged between the top of the guide measuring cylinder and the top and the middle of the main force rod and between the bottom of the guide measuring cylinder and the middle and the bottom of the main force rod. In addition, each rod body connecting end on the main frame 1 and the guide frame 2 is provided with a reinforcing plate 8 for connecting two rod bodies so as to improve the strength of the whole structure, the connecting joint of each rod body adopts the reinforcing plate to reinforce the local structure, and the rigid frame and the diagonal rods are fixedly connected by a K-shaped rod system, a T-shaped rod system, a cross-shaped rod system and a W-shaped rod system, so that the structural stress is more stable.
The top frame 3 comprises a top support rod 31 connected with the top of the main force rod 11 and the middle part of the central suspension rod 4, and a horizontally arranged cross support 32 is further connected between the bottom of the central suspension rod and the middle part of the top support rod. The lower ends of the four top support rods are connected with the top nodes of the main force rods, the upper ends of the four top support rods are connected to the lower end of the central suspension rod in a centralized mode, and the lower end of the central suspension rod extends downwards to be connected with the cross-shaped support to play a role in stabilizing and stabilizing the upper structure.
The underwater positioning guide frame for the offshore wind power foundation pile sinking is characterized in that a pedestrian ladder platform for personnel to walk is arranged on a main body rigid frame, an underwater three-dimensional attitude instrument is mounted at the center of the pedestrian ladder platform, and the integral levelness and the inclination condition of the main body rigid frame are accurately monitored through the underwater three-dimensional attitude instrument.
The underwater positioning guide frame for the offshore wind power foundation pile sinking is characterized in that a notch for installing an underwater beacon is formed in the outer side of the guide measuring cylinder 6; the guide coaming 7 on the guide measuring cylinder 6 comprises a horn-shaped annular coaming 71 with a large upper part and a small lower part, a crescent coaming 72 is arranged at the top of the annular coaming, and the height of the crescent coaming is gradually reduced from one side to the other side towards the center of the main rigid frame to form a crescent shape; the annular enclosing plate 71 or the crescent enclosing plate 72 is provided with a through hole 73 which is communicated with the inner side and the outer side, so that the underwater observation equipment can be conveniently installed and placed.
The underwater positioning guide frame for the offshore wind power foundation pile sinking is characterized in that the top of the central suspender 4 is positioned above the water surface and is provided with a lifting lug for lifting the whole main body rigid frame.
A pile sinking construction method comprises the following steps:
A. placing an underwater beacon on the guide measuring cylinder, installing a positioning device at a working platform at the top of the central suspender, and installing the pump prying block on a pump prying block placing platform;
B. the main body rigid frame is hoisted to a set position required by offshore wind power foundation pile sinking, and the hoisting position of the main body rigid frame is positioned through a positioning system and an underwater beacon;
C. after the main body rigid frame is hung in place, recovering the pump prying blocks, and then performing pile inserting operation; in the pile inserting process, a remote control unmanned submersible is used for carrying out opening searching and pile feeding, the engineering pile is guided to an inlet of a guide measuring cylinder, and then the amplitude of the crane is adjusted to lower the engineering pile;
D. all engineering piles penetrate through the guide measuring cylinder and then stop self-sinking, the underwater beacons are recovered, and pile sinking operation is carried out;
E. and after the engineering pile is monitored to be sunk to a set elevation through the video real-time monitoring device, the pump prying block is reinstalled and drives the suction anchor to be separated from the seabed so as to be fixed with the seabed, and then the underwater positioning guide frame is recovered to complete pile sinking construction.
The pile sinking construction method completes construction of the underwater positioning guide frame in a sectional construction and assembly mode, and completes work of pump prying block pipeline arrangement, air tightness test, wiring and installation of underwater positioning measurement equipment, top hoisting point hanging strips, cable wind rope hanging buckles and the like in a construction plant; then transporting the underwater positioning guide frame to a construction site, placing an underwater beacon on the guide measuring cylinder, overlapping a top platform with high-precision positioning equipment, and hoisting and placing a pump prying block to a pump prying block placing platform by using a construction floating crane auxiliary crane; in the process of hoisting and placing the main rigid frame, the hoisting and placing position of the main rigid frame is positioned through a positioning system and an underwater beacon, and the deviation between the position of the guide measuring cylinder and the set position is ensured to be +/-1.5 m and the direction deviation is ensured to be 3 degrees; in addition, when the main body rigid frame is hung on a seabed, the levelness of the main body rigid frame is adjusted according to the measurement result of the underwater three-dimensional attitude instrument, the internal and external pressure difference of each suction anchor is adjusted through opening and closing of a pipe valve, so that the suction anchors are quickly and accurately penetrated into the soil of the seabed, the whole main body rigid frame is leveled, the suction anchors can be penetrated to the designed depth when the piles are sunk, and therefore, enough bearing capacity and uplift resistance are ensured to be stably seated on the seabed, and the maximum penetration depth is required to be ensured not to exceed the designed height of the suction anchors.
According to the pile sinking construction method, the bottom of the engineering pile is coated with bright paint so as to facilitate observation and underwater opening searching, pile feeding and pile inserting. Meanwhile, the main body rigid frame is arranged underwater, the working platform at the top of the central suspender is arranged above the water surface, positioning measurement equipment is arranged on the working platform, the elevation of an observation point arranged on the guide measuring cylinder is converted by acquiring the elevation of the working platform, then an underwater image picture is transmitted through signals, a scale value on the pile feeder is observed, and the pile top elevation of the engineering pile is reversely pushed out. In addition, when pile inserting operation is carried out, the pile inserting mode adopts a construction sequence from far to near, near-end pile inserting operation is carried out after the pile inserting of a far-end engineering pile is finished, and a ship can be moved properly to be close to the central suspender when a far-end pile is inserted so as to reduce the operation span of the construction floating crane; when pile sinking operation is carried out, the pile sinking mode adopts a construction sequence from near to far, and when the pile is sunk far, a ship can be moved properly to be close to the central suspender so as to reduce the construction floating crane operation span; in the pile inserting process, a remote control unmanned submersible is used for carrying out opening searching and pile feeding, the engineering pile is guided to an inlet of the guide measuring cylinder, then the amplitude of the crane is adjusted to lower the engineering pile, and meanwhile, the levelness of the main rigid frame is monitored, so that the verticality precision of the engineering pile is ensured to reach the standard; in addition, a video real-time monitoring device such as an underwater camera, an underwater laser scale or an underwater searchlight is installed at the through hole on the guide enclosing plate so as to realize underwater visual elevation monitoring of the pile sinking, change the previous measurement operation of the above-water structure laying working platform through upper and lower personnel, improve the measurement operation efficiency and greatly reduce the safety risk of constructors.
The elevation of the top of the engineering pile is observed and monitored in the pile sinking process, the elevation is obtained through a positioning device to convert the position elevations of an underwater camera, an underwater laser gradiometer and an underwater searchlight which are arranged on a guide measuring cylinder, underwater image pictures are transmitted through signals, the scale numerical value on a pile feeder is observed, then the elevation of the pile top of the engineering pile is reversely pushed, the operation is convenient, and the elevation error of each engineering pile can be effectively ensured to be within the design requirement; after four engineering piles are sunk to the designed elevation, the pile feeder and the pile hammer are recovered, the pump pry block is re-placed on the pump pry block placement platform, the main hook of the construction floating crane is hung and buckled with a lifting lug at the top of a central lifting rod, water is injected into the suction anchor in a pressurizing mode, the lifting recovery of the main rigid frame is gradually completed by matching with a crane, the overall levelness of the main rigid frame is strictly monitored within the range of the inclination allowance of the lifting operation in the process, the inclination in each direction is within +/-0.2 degrees, and after the suction anchor extracts a mud surface, the crane lifts the main rigid frame, and then moves the ship to the next machine position after the main rigid frame completely goes out of water for pile sinking construction.
Claims (10)
1. Offshore wind power basis pile sinking is with underwater location leading truck, its characterized in that: the underwater pile foundation.
2. The underwater positioning guide frame for offshore wind power foundation pile sinking according to claim 1, characterized in that: the bottom device comprises a plurality of suction anchors (5) arranged at the bottom of the main body rigid frame and a pump prying block placing platform (9) for placing pump prying blocks; the guiding measuring cylinder (6) is arranged above the outer side between the adjacent suction anchors (5).
3. The underwater positioning guide frame for offshore wind power foundation pile sinking according to claim 1 or 2, characterized in that: a pedestrian ladder platform for a person to walk is arranged on the main body rigid frame, and an underwater three-dimensional attitude instrument is mounted at the center of the pedestrian ladder platform.
4. The underwater positioning guide frame for offshore wind power foundation pile sinking according to claim 1 or 2, characterized in that: the main body rigid frame comprises a main frame (1), a guide frame (2) and a top frame (3), the main frame is in a cuboid shape with a square top surface and a square bottom surface, and a suction anchor (5) is connected to the bottom of the main frame; the guide frame is arranged on the side edge of the main frame and connected with the guide measuring cylinder (6), and the top frame is arranged on the top of the main frame and connected with the central suspension rod (4).
5. The underwater positioning guide frame for offshore wind power foundation pile sinking according to claim 4, wherein: the main frame (1) comprises main force rods (11) which are vertically arranged, the bottoms of the main force rods are connected with the suction anchors (3), the four main force rods are distributed at four vertical edges of a cuboid, connecting rods (12) which are horizontally arranged are connected between every two adjacent main force rods along the same horizontal plane, the middle parts of the adjacent connecting rods on the same horizontal plane are connected through transverse supporting rods (13), and inclined supporting rods (14) which are obliquely arranged are also connected between every two adjacent main force rods; the connecting rod (12) comprises an upper connecting rod, a middle connecting rod and a lower connecting rod which are connected to the top end, the middle part and the bottom end of the main force rod (11); the inclined stay bar (14) comprises an upper inclined stay bar and a lower inclined stay bar, wherein the connecting end of the main force bar and the upper connecting bar extends to the middle part of the middle connecting bar, and the connecting end of the main force bar and the middle connecting bar extends to the middle part of the lower connecting bar; a straight stay bar (15) is also connected between the middle part of the upper connecting rod and the middle connecting rod.
6. The underwater positioning guide frame for offshore wind power foundation pile sinking according to claim 1 or 2, characterized in that: the guide enclosing plate (7) on the guide measuring cylinder (6) comprises a horn-shaped annular enclosing plate (71) with a large upper part and a small lower part, a crescent enclosing plate (72) is arranged at the top of the annular enclosing plate, and the height of the crescent enclosing plate is gradually reduced from one side to the other side of the center of the main rigid frame.
7. The underwater positioning guide frame pile sinking construction method is characterized by comprising the following steps of:
A. placing an underwater beacon on the guide measuring cylinder, installing a positioning device at a working platform at the top of the central suspender, and installing the pump prying block on a pump prying block placing platform;
B. the main body rigid frame is hoisted to a set position required by offshore wind power foundation pile sinking, and the hoisting position of the main body rigid frame is positioned through a positioning system and an underwater beacon;
C. after the main body rigid frame is hung in place, recovering the pump prying blocks, and then performing pile inserting operation; in the pile inserting process, a remote control unmanned submersible is used for carrying out opening searching and pile feeding, the engineering pile is guided to an inlet of a guide measuring cylinder, and then the amplitude of the crane is adjusted to lower the engineering pile;
D. all engineering piles penetrate through the guide measuring cylinder and then stop self-sinking, the underwater beacons are recovered, and pile sinking operation is carried out;
E. and after the engineering pile is monitored to be sunk to a set elevation through the video real-time monitoring device, the pump prying block is reinstalled and drives the suction anchor to be separated from the seabed so as to be fixed with the seabed, and then the underwater positioning guide frame is recovered to complete pile sinking construction.
8. The underwater positioning guide frame pile sinking construction method according to claim 7, characterized in that: the main body rigid frame is arranged underwater, the working platform at the top of the central suspender is arranged above the water surface, the positioning and measuring equipment is arranged on the working platform, the elevation of the observation point on the guide measuring cylinder is converted by acquiring the elevation of the working platform, then the underwater image picture is transmitted through signals, the scale value on the pile feeder is observed, and the pile top elevation of the engineering pile is reversely pushed out.
9. The underwater positioning guide frame pile sinking construction method according to claim 7, characterized in that: when the main body rigid frame is hoisted to the seabed, the levelness of the main body rigid frame is adjusted according to the measurement result of the underwater three-dimensional attitude instrument, and the internal and external pressure difference of each suction anchor is adjusted by opening and closing the pipe valve.
10. The underwater positioning guide frame pile sinking construction method according to claim 7, characterized in that: when pile inserting operation is carried out, the pile inserting mode adopts a construction sequence from far to near; when pile sinking operation is carried out, the pile sinking mode adopts a construction sequence from near to far.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111148945.4A CN113897959A (en) | 2021-09-29 | 2021-09-29 | Underwater positioning guide frame for offshore wind power foundation pile sinking and pile sinking construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111148945.4A CN113897959A (en) | 2021-09-29 | 2021-09-29 | Underwater positioning guide frame for offshore wind power foundation pile sinking and pile sinking construction method |
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| CN113897959A true CN113897959A (en) | 2022-01-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434320A (en) * | 2022-10-12 | 2022-12-06 | 交通运输部广州打捞局 | Pile sinking positioning device and pile sinking positioning method |
| CN116876498A (en) * | 2023-09-06 | 2023-10-13 | 南通泰胜蓝岛海洋工程有限公司 | Calibration method for pile sinking positioning frame hanging installation |
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| CN107152027A (en) * | 2017-06-22 | 2017-09-12 | 广东华尔辰海上风电工程有限责任公司 | Offshore wind farm multi-column pier foundation pile sinking construction method and special leading truck |
| CN109811767A (en) * | 2019-01-29 | 2019-05-28 | 广州打捞局 | Suction barrel base piling positioning frame |
| CN110761286A (en) * | 2019-10-22 | 2020-02-07 | 浙江华蕴海洋工程技术服务有限公司 | Negative pressure cylinder type pile-first method jacket piling positioning guide device and working method |
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2021
- 2021-09-29 CN CN202111148945.4A patent/CN113897959A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107152027A (en) * | 2017-06-22 | 2017-09-12 | 广东华尔辰海上风电工程有限责任公司 | Offshore wind farm multi-column pier foundation pile sinking construction method and special leading truck |
| CN109811767A (en) * | 2019-01-29 | 2019-05-28 | 广州打捞局 | Suction barrel base piling positioning frame |
| CN110761286A (en) * | 2019-10-22 | 2020-02-07 | 浙江华蕴海洋工程技术服务有限公司 | Negative pressure cylinder type pile-first method jacket piling positioning guide device and working method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434320A (en) * | 2022-10-12 | 2022-12-06 | 交通运输部广州打捞局 | Pile sinking positioning device and pile sinking positioning method |
| CN116876498A (en) * | 2023-09-06 | 2023-10-13 | 南通泰胜蓝岛海洋工程有限公司 | Calibration method for pile sinking positioning frame hanging installation |
| CN116876498B (en) * | 2023-09-06 | 2023-12-01 | 南通泰胜蓝岛海洋工程有限公司 | Calibration method for pile sinking positioning frame hanging installation |
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Application publication date: 20220107 |