CN111139830A - Seat bottom pile inserting type single pile stabilizing frame and pile sinking method - Google Patents
Seat bottom pile inserting type single pile stabilizing frame and pile sinking method Download PDFInfo
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- CN111139830A CN111139830A CN202010069364.0A CN202010069364A CN111139830A CN 111139830 A CN111139830 A CN 111139830A CN 202010069364 A CN202010069364 A CN 202010069364A CN 111139830 A CN111139830 A CN 111139830A
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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
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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
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
Abstract
The utility model provides a steady pile frame of stake formula single pile is inserted at seat bottom, relate to steady pile platform, including steady pile truss, arrange from top to bottom on steady pile truss's well upper portion and install a plurality of steady pile platforms, there is anti-sinking board at steady pile truss's lower part fixed mounting, be equipped with pile embracing mechanism in the front portion of platform body, it leads positive mechanism to encircle to be equipped with a plurality of single piles along the circumferencial direction in feeding the stake mouth, the single pile is led positive mechanism and is led the flexible adjusting device that the gyro wheel was advanced including leading positive gyro wheel and drive, it is used for the overlap joint in order to adjust the single pile position on the single pile to lead positive. The invention has the advantages of stable and reliable structure, high positioning precision, convenient adjustment and control, high verticality adjustment precision and the like. The invention also discloses a pile sinking method adopting the seat bottom pile inserting type single pile stabilizing frame, which improves the vertical precision of single pile sinking, saves the pile sinking time and improves the pile sinking efficiency.
Description
Technical Field
The invention relates to a pile stabilizing platform, in particular to a seat bottom pile inserting type single-pile stabilizing frame. The invention also relates to a pile sinking method of the seat bottom pile inserting type single-pile stabilizing frame.
Background
Wind energy is a renewable clean energy, and wind turbines are generally adopted to collect wind energy in the prior art. Due to the large amount of space available in the sea and the high wind power, more and more wind farms are built offshore. The wind turbine generator set in the prior art mostly adopts a single-pile structure, the single-pile foundation structure is the current mainstream offshore wind turbine foundation structure type in the world and the country, the single-pile foundation in the country mostly adopts a transition flange-free structure, the verticality requirement of a single pile is extremely high, and therefore pile stabilizing equipment is required to be adopted to assist pile sinking when the single pile is installed, so that the verticality requirement of the pile is met. There are many different types of pile-stabilizing platforms in the prior art, and for example, chinese patent publication No. CN207829001U discloses a pile-stabilizing positioning platform for offshore wind power single-pile foundation, which includes: the pile feeding port is arranged at the bow part of the main platform; the pile embracing mechanism is arranged at the bow part of the main platform and is matched and connected with the single pile foundation; the pile punching system is arranged on each platform pile leg; each lifting system is correspondingly arranged at the joint of one platform pile leg and the main platform; the two rudder propeller systems are arranged at the stern part of the main platform; four sets of anchor winches are symmetrically arranged at the fore/aft positions of the port and the starboard of the main platform. The pile stabilizing and positioning platform positions the single pile through the pile feeding port on the main platform, and because only one main platform is arranged, when the lower part of the single pile is subjected to water flow impact and other factors to be cut obliquely, the single pile feeding port cannot effectively play a limiting role, so that the verticality of single pile installation is influenced; and taking and placing the single pile through the pile feeding port is troublesome; meanwhile, a plurality of other mechanisms are arranged on the pile stabilizing positioning platform, and due to the corrosivity of seawater, the pile stabilizing positioning platform needs to be maintained frequently, so that the maintenance cost is high.
In the prior art, a wind power deepwater underwater jacket is mostly adopted to build an offshore wind power generator set, a foundation steel pipe pile of the underwater jacket type fan is constructed by sinking a pile by using a hydraulic hammer, and the elevation control deviation of the pile top is large. Under the conditions that the water depth is deeper and the sea condition is worse, the pile position deviation of the hydraulic hammer pile sinking is larger. In the marine piling process, due to the fact that the construction area is wide, the working face is large, the construction environment and the weather condition are poor, pile position deviation control cannot meet requirements according to a conventional measurement positioning mode. If no special construction process and control measures are adopted, the relative position error of the pile top cannot meet the design requirement. In order to ensure that the pile sinking precision of the underwater steel pipe pile meets the requirements, a complete pile sinking control process must be developed to control the pile sinking of the steel pipe pile.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a seat bottom pile inserting type single-pile stabilizing frame which is simple and reliable in structure, convenient to use, high in control precision and easy to maintain.
The invention aims to solve the other problem of providing a pile sinking method of a seat bottom pile inserting type single-pile stabilizing frame, which has high construction efficiency and convenient and accurate control.
The technical problem to be solved by the present invention is achieved by the following technical means. The invention relates to a seat bottom pile inserting type single-pile stabilizing frame, which is characterized in that: the pile stabilizing truss is mainly composed of a plurality of vertical supporting cylinder columns, the supporting cylinder columns are fixedly connected through reinforcing struts to form a main body part of the pile stabilizing truss, hollow cylinder cavities are arranged in the supporting cylinder columns and used for penetrating and installing matched positioning piles, the positioning piles penetrate and are installed in the hollow cylinder cavities, and the bottoms of the positioning piles are fixed in a seabed;
the pile stabilizing device comprises a pile stabilizing truss, a pile holding mechanism, a pile feeding mechanism and a pile driving mechanism, wherein a plurality of pile stabilizing platforms are vertically arranged at the middle upper part of the pile stabilizing truss, an anti-sinking plate is fixedly arranged at the lower part of the pile stabilizing truss, each pile stabilizing platform comprises a platform body fixedly arranged on the pile stabilizing truss, the front part of the platform body is provided with the pile holding mechanism, the pile holding mechanism comprises a single pile clamping groove arranged on the platform body, two sides of the single pile clamping groove are respectively hinged with a holding arm, the two holding arms are respectively connected with a matched driving device to form a swinging structure, the front ends of the two holding arms are provided with a matched movable connecting structure, a pile feeding port for installing and using a single pile is formed between the holding arms and the;
the pile feeding device is characterized in that a plurality of single-pile guide mechanisms are annularly arranged in the pile feeding port along the circumferential direction, each single-pile guide mechanism comprises a guide roller and a telescopic adjusting device for driving the guide roller to advance, the telescopic adjusting devices are fixedly arranged on the embracing arm and/or the platform body, the advancing direction of each telescopic adjusting device points to the center of the pile feeding port, and the guide rollers are used for being overlapped on a single pile to adjust the position of the single pile.
The invention further discloses a seat bottom pile inserting type single-pile stabilizing frame, which has the following further preferable technical scheme or technical characteristics: the pile stabilizing platforms are at least provided with 2.
The invention further discloses a seat bottom pile inserting type single-pile stabilizing frame, which has the following further preferable technical scheme or technical characteristics: the number of the guide rollers is at least 3, and the guide rollers are uniformly arranged at intervals along the circumferential direction.
The invention further discloses a seat bottom pile inserting type single-pile stabilizing frame, which has the following further preferable technical scheme or technical characteristics: the number of the guide rollers is 4.
The invention further discloses a seat bottom pile inserting type single-pile stabilizing frame, which has the following further preferable technical scheme or technical characteristics: the pile stabilizing truss comprises 4 supporting cylinder columns, and the supporting cylinder columns are arranged in a rectangular structure.
The invention further discloses a seat bottom pile inserting type single-pile stabilizing frame, which has the following further preferable technical scheme or technical characteristics: the pile stabilizing platform is fixedly provided with a plurality of sleeves matched with the supporting cylinder columns, and the pile stabilizing platform is sleeved on the supporting cylinder columns through the sleeves and is fixedly connected with the supporting cylinder columns.
The invention further discloses a seat bottom pile inserting type single-pile stabilizing frame, which has the following further preferable technical scheme or technical characteristics: and a plurality of balance buoyancy tanks are fixedly arranged on the pile stabilizing truss below the pile embracing mechanism.
The invention also provides a pile sinking method adopting the seat bottom pile inserting type single-pile stabilizing frame, which is characterized in that: the method comprises the following steps:
(1) shipping and transporting the single-pile stabilizing frame: the single-pile stabilizing frame is transported to a designated sea area by a ship;
(2) the single pile stabilizing frame is entered, lifted, turned over and sunk: hoisting and turning over the single-pile stabilizing frame in the step (1) by using a hoisting tool, so that the single-pile stabilizing frame sinks on the seabed at a designed position, pile stabilizing platforms on the single-pile stabilizing frame are all positioned above the sea level in the turning over process, the pile stabilizing platforms are parallel to the sea level after the single-pile stabilizing frame sinks, then positioning columns are respectively inserted into supporting cylinder columns at four corners of the single-pile stabilizing frame, and positioning piles are driven into the seabed, so that the single-pile stabilizing frame is fixed on the seabed;
(3) installing and fixing the single pile: opening an arm on the pile stabilizing platform, vertically hoisting a single pile to be fixed into a pile feeding port, then closing the arm, and adjusting the verticality of the single pile through a guiding roller on a single pile guiding mechanism to ensure that the verticality deviation of the single pile is not more than 1.0 per thousand;
after the single pile is adjusted, the single pile is firstly sunk into the seabed by using the self weight of the single pile, and then the hydraulic hammer is used for hydraulically hammering the single pile to sink the pile after the single pile is stabilized, wherein the verticality deviation of the single pile after the pile sinking is not more than 3.0 thousandth;
(4) dismantling the single pile stabilizing frame: and opening the holding arm, removing the guide idler wheel from the single pile, lifting and pulling out the positioning pile, and then lifting the single pile stabilizing frame to a ship to transport to the next position.
The pile sinking method of the seat bottom pile inserting type single-pile stabilizing frame is further preferably characterized in that: in the step (2), a main crane ship and an auxiliary crane ship are simultaneously used for lifting and turning over the single-pile stable pile frame, the main crane ship lifts the top of the single-pile stable pile frame through a lifting hook, and the auxiliary crane ship lifts the tail of the single-pile stable pile frame through the lifting hook;
the main crane ship and the auxiliary crane ship are matched to transversely hoist the single-pile stabilizing frame to the sea surface, the auxiliary crane ship is started to lower the tail part of the single-pile stabilizing frame to a position 4 m-5 m away from the seabed mud surface, the tail part of the single-pile stabilizing frame is kept stable, and the main crane ship is started to lift the single-pile stabilizing frame to enable a pile stabilizing platform on the single-pile stabilizing frame to rotate to a horizontal state;
then, the main lifting vessel continues to lift the single-pile stabilizing frame upwards, so that the tail of the single-pile stabilizing frame is lifted to a position 2 m-3 m above the water surface, and at the moment, the lifting hook of the auxiliary lifting vessel is taken down from the tail of the single-pile stabilizing frame;
and then adjusting the placing angle of the single-pile stabilizing frame to a design position, immersing the single-pile stabilizing frame into seawater by a main crane ship falling hook to sit at the bottom, arranging a pile stabilizing platform above the sea level, adjusting the position of the single-pile stabilizing frame, inserting positioning columns into the supporting cylinder columns at the four corners of the single-pile stabilizing frame respectively after the position of the single-pile stabilizing frame is adjusted, driving positioning piles into the seabed, and further fixing the single-pile stabilizing frame on the seabed.
The pile sinking method of the seat bottom pile inserting type single-pile stabilizing frame is further preferably characterized in that: in the step (3), after the single pile is hoisted into the pile feeding port, the lifting hook is not released, the single pile sinks to the seabed mud surface under the action of self weight, when the stability of the single pile is confirmed, the stay cable with a certain length is continuously lowered, so that the single pile is in a state of no stress and no unhooking, the observation is carried out for 15 minutes, the lifting hook on the single pile is released after the stability of the single pile is confirmed, and the primary fixing of the single pile is completed;
then, carrying out hydraulic hammering pile sinking on the single pile by using a hydraulic hammer, wherein the hydraulic hammer and the single pile are coaxially arranged; after the hydraulic hammer is contacted with the single pile for the first time, the hydraulic hammer is gradually put down, so that the weight of the hydraulic hammer acting on the single pile is gradually increased, the verticality of the single pile is not changed, the hydraulic hammer is continuously used for hammering the single pile for construction by small-equivalent hydraulic pressure firstly through the hydraulic hammer, the verticality of the single pile is observed, the single pile is observed and adjusted when the single pile is sunk for 1 m-2 m every time, and the hydraulic hammer is changed into continuous hydraulic hammering pile sinking when the verticality of the single pile is still not changed after 3-4 times of repeated operation.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the single-pile stabilizing frame, the pile stabilizing truss is matched with the positioning pile, and the positioning pile enables the pile stabilizing truss to be accurately fixed at the appointed position of a seabed, so that the influence of ocean currents and sea wind on the pile stabilizing truss is reduced, and the positioning accuracy of the pile stabilizing truss is higher; on the pile stabilizing platforms arranged up and down, the telescopic adjusting device is used for adjusting the position of the guide idler wheel, so that the verticality of a single pile can be effectively controlled, the pile sinking quality is ensured, the control is convenient, and the verticality adjusting precision is high; in conclusion, the invention has the advantages of stable and reliable structure, high positioning precision, convenient adjustment and control, high verticality adjustment precision and the like.
According to the invention, the balance buoyancy tank is fixedly arranged on the pile stabilizing truss below the pile embracing mechanism, and the balance buoyancy tank provides a part of buoyancy to balance the weight of the pile embracing mechanism, so that the phenomenon of uneven self-sinking depth of the pile stabilizing truss caused by uneven gravity distribution is prevented.
(2) The pile sinking method of the single-pile stabilizing frame adopts the single-pile stabilizing frame, improves the vertical precision of single-pile sinking through the single-pile stabilizing frame, and leads the precision adjustment of the single pile in the pile sinking method to be more convenient and efficient, thereby improving the pile sinking achievement rate, saving the pile sinking time and improving the pile sinking efficiency.
According to the pile sinking method, the pile stabilizing platforms are all located above the sea level, so that corrosion of seawater to the pile embracing mechanism and the single-pile guiding mechanism is avoided, the maintenance cost of the single-pile stabilizing frame is reduced, and the service life of the single-pile stabilizing frame is prolonged.
After the single pile sinks and is stabilized under the action of self weight, observing and adjusting the single pile so as to improve the verticality of the single pile; the test hammer is firstly carried out before hydraulic hammering pile sinking, and the verticality of the single pile in the pile sinking process is further guaranteed.
Drawings
FIG. 1 is a schematic structural view of a single-pile-stabilizing frame of the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
in the figure, 1 supports a cylindrical column, 2 reinforcing supports, 3 pile stabilizing platforms, 4 anti-sinking plates, 5 single-pile clamping grooves, 6 embracing arms, 7 driving devices, 8 guide idler wheels, 9 telescopic adjusting devices, 10 balance buoyancy tanks and 11 single piles.
Detailed Description
The following further describes particular embodiments of the present invention to facilitate further understanding of the present invention by those skilled in the art, and does not constitute a limitation to the right thereof.
A kind of seat bottom pile-inserting type single pile-stabilizing frame, including pile-stabilizing truss, the pile-stabilizing truss is mainly formed by several vertical supporting tubular columns 1, support tubular columns 1 and fix and connect and form the main body part of pile-stabilizing truss through the reinforced brace 2, support the tubular column 1 and have hollow tubular cavities, the hollow tubular cavity is used for supporting the pilot pile to wear and adorn and use, the pilot pile wears and adorns in the hollow tubular cavity and the pilot pile bottom is fixed in the sea bed;
the pile stabilizing device comprises a pile stabilizing truss, a plurality of pile stabilizing platforms 3 are vertically arranged on the middle upper portion of the pile stabilizing truss, an anti-sinking plate 4 is fixedly arranged on the lower portion of the pile stabilizing truss, each pile stabilizing platform 3 comprises a platform body fixedly arranged on the pile stabilizing truss, a pile embracing mechanism is arranged on the front portion of the platform body and comprises a single pile clamping groove 5 formed in the platform body, embracing arms 6 are hinged to two sides of the single pile clamping groove 5, the two embracing arms 6 are connected with a matched driving device 7 to form a swinging structure, matched movable connecting structures are arranged at the front ends of the two embracing arms 6, a pile feeding port for installing and using a single pile is formed between the embracing arms 6 and the single pile clamping groove 5, and the pile feeding ports are vertically and correspondingly arranged;
the driving device 7 is a hydraulic oil cylinder, and the hydraulic oil cylinder is controlled by a matched hydraulic oil cylinder control system. The movable connecting structure is a plug-in buckle type structure formed by a plug board and a groove, and is fixed through a pin shaft after being buckled.
The pile feeding device is characterized in that a plurality of single-pile guide mechanisms are annularly arranged in the pile feeding port along the circumferential direction, each single-pile guide mechanism comprises a guide roller 8 and a telescopic adjusting device 9 for driving the guide roller 7 to advance, the telescopic adjusting devices 9 are fixedly arranged on the arm 6 and/or the platform body, the advancing direction of the telescopic adjusting devices 9 points to the center of the pile feeding port, and the guide rollers 7 are used for being overlapped on single piles to adjust the position of the single pile.
The telescopic adjusting device 9 is a hydraulic oil cylinder which is controlled by a matched oil cylinder control system.
And 2 pile stabilizing platforms 3 are arranged.
The number of the guide rollers 8 is 4, and the guide rollers 8 are uniformly arranged at intervals along the circumferential direction. The pile stabilizing truss comprises 4 supporting cylinder columns 1, and the supporting cylinder columns 1 are arranged in a rectangular structure.
All fixed 4 sleeves with support 1 matched with of section of thick bamboo post that are equipped with on steady pile platform 3, steady pile platform 3 passes through the sleeve suit and fixed connection on supporting section of thick bamboo post 1. And 4 sleeves are respectively fixed at four corners of the pile stabilizing platform 3.
The pile stabilizing truss is fixedly provided with 2 balance buoyancy tanks 10 on the pile stabilizing truss below the pile embracing mechanism, the balance buoyancy tanks 10 are respectively fixed on a support cylinder column 1 below the pile embracing mechanism, the balance buoyancy tanks 10 are arranged in the sea to provide buoyancy, and the buoyancy of the balance buoyancy tanks 10 is used for balancing the weight of the pile embracing mechanism, so that the pile stabilizing truss is balanced and stable.
A pile sinking method adopting the seat bottom pile inserting type single pile stabilizing frame comprises the following steps:
(1) shipping and transporting the single-pile stabilizing frame: the single-pile stabilizing frame is transported to a designated sea area by a ship;
(2) the single pile stabilizing frame is entered, lifted, turned over and sunk: hoisting and turning over the single-pile stabilizing frame in the step (1) by using a hoisting tool, so that the single-pile stabilizing frame sinks on the seabed at a designed position, pile stabilizing platforms on the single-pile stabilizing frame are all positioned above the sea level in the turning over process, the pile stabilizing platforms are parallel to the sea level after the single-pile stabilizing frame sinks, then positioning columns are respectively inserted into supporting cylinder columns at four corners of the single-pile stabilizing frame, and positioning piles are driven into the seabed, so that the single-pile stabilizing frame is fixed on the seabed;
(3) installing and fixing the single pile: opening an arm on the pile stabilizing platform, vertically hoisting a single pile to be fixed into a pile feeding port, then closing the arm, and adjusting the verticality of the single pile through a guiding roller on a single pile guiding mechanism to ensure that the verticality deviation of the single pile is not more than 1.0 per thousand;
after the single pile is adjusted, the single pile is firstly sunk into the seabed by using the self weight of the single pile, and then the hydraulic hammer is used for hydraulically hammering the single pile to sink the pile after the single pile is stabilized, wherein the verticality deviation of the single pile after the pile sinking is not more than 3.0 thousandth;
(4) dismantling the single pile stabilizing frame: and opening the holding arm, removing the guide idler wheel from the single pile, lifting and pulling out the positioning pile, and then lifting the single pile stabilizing frame to a ship to transport to the next position.
In the step (2), a main crane ship and an auxiliary crane ship are simultaneously used for lifting and turning over the single-pile stable pile frame, the main crane ship lifts the top of the single-pile stable pile frame through a lifting hook, and the auxiliary crane ship lifts the tail of the single-pile stable pile frame through the lifting hook;
the main crane ship and the auxiliary crane ship are matched to transversely hoist the single-pile stabilizing frame to the sea surface, the auxiliary crane ship is started to lower the tail part of the single-pile stabilizing frame to a position 4 m-5 m away from the seabed mud surface, the tail part of the single-pile stabilizing frame is kept stable, and the main crane ship is started to lift the single-pile stabilizing frame to enable a pile stabilizing platform on the single-pile stabilizing frame to rotate to a horizontal state;
then, the main lifting vessel continues to lift the single-pile stabilizing frame upwards, so that the tail of the single-pile stabilizing frame is lifted to a position 2 m-3 m above the water surface, and at the moment, the lifting hook of the auxiliary lifting vessel is taken down from the tail of the single-pile stabilizing frame;
and then adjusting the placing angle of the single-pile stabilizing frame to a design position, immersing the single-pile stabilizing frame into seawater by a main crane ship falling hook to sit at the bottom, arranging a pile stabilizing platform above the sea level, adjusting the position of the single-pile stabilizing frame, inserting positioning columns into the supporting cylinder columns at the four corners of the single-pile stabilizing frame respectively after the position of the single-pile stabilizing frame is adjusted, driving positioning piles into the seabed, and further fixing the single-pile stabilizing frame on the seabed.
In the step (3), after the single pile is hoisted into the pile feeding port, the lifting hook is not released, the single pile sinks to the seabed mud surface under the action of self weight, when the stability of the single pile is confirmed, the stay cable with a certain length is continuously lowered, so that the single pile is in a state of no stress and no unhooking, the observation is carried out for 15 minutes, the lifting hook on the single pile is released after the stability of the single pile is confirmed, and the primary fixing of the single pile is completed;
then, carrying out hydraulic hammering pile sinking on the single pile by using a hydraulic hammer, wherein the hydraulic hammer and the single pile are coaxially arranged; after the hydraulic hammer is contacted with the single pile for the first time, the hydraulic hammer is gradually put down, so that the weight of the hydraulic hammer acting on the single pile is gradually increased, the verticality of the single pile is not changed, the hydraulic hammer is continuously used for hammering the single pile for construction by small-equivalent hydraulic pressure firstly through the hydraulic hammer, the verticality of the single pile is observed, the single pile is observed and adjusted when the single pile is sunk for 1 m-2 m every time, and the hydraulic hammer is changed into continuous hydraulic hammering pile sinking when the verticality of the single pile is still not changed after 3-4 times of repeated operation.
Claims (10)
1. The utility model provides a steady pile frame of stake formula single pile is inserted to seat bottom which characterized in that: the pile stabilizing truss is mainly composed of a plurality of vertical supporting cylinder columns, the supporting cylinder columns are fixedly connected through reinforcing struts to form a main body part of the pile stabilizing truss, hollow cylinder cavities are arranged in the supporting cylinder columns, and the hollow cylinder cavities are used for being penetrated and installed by matched positioning piles;
the pile stabilizing device comprises a pile stabilizing truss, a pile holding mechanism, a pile feeding mechanism and a pile driving mechanism, wherein a plurality of pile stabilizing platforms are vertically arranged at the middle upper part of the pile stabilizing truss, an anti-sinking plate is fixedly arranged at the lower part of the pile stabilizing truss, each pile stabilizing platform comprises a platform body fixedly arranged on the pile stabilizing truss, the front part of the platform body is provided with the pile holding mechanism, the pile holding mechanism comprises a single pile clamping groove arranged on the platform body, two sides of the single pile clamping groove are respectively hinged with a holding arm, the two holding arms are respectively connected with a matched driving device to form a swinging structure, the front ends of the two holding arms are provided with a matched movable connecting structure, a pile feeding port for installing and using a single pile is formed between the holding arms and the;
the pile feeding device is characterized in that a plurality of single-pile guide mechanisms are annularly arranged in the pile feeding port along the circumferential direction, each single-pile guide mechanism comprises a guide roller and a telescopic adjusting device for driving the guide roller to advance, the telescopic adjusting devices are fixedly arranged on the embracing arm and/or the platform body, the advancing direction of each telescopic adjusting device points to the center of the pile feeding port, and the guide rollers are used for being overlapped on a single pile to adjust the position of the single pile.
2. The pile-stabilizing frame for a single pile inserted in a seat bottom according to claim 1, wherein: the pile stabilizing platforms are at least provided with 2.
3. The pile-stabilizing frame for a single pile inserted in a seat bottom according to claim 1, wherein: the number of the guide rollers is at least 3, and the guide rollers are uniformly arranged at intervals along the circumferential direction.
4. A seat bottom pile-inserting type single pile stabilizing frame according to claim 3, wherein: the number of the guide rollers is 4.
5. The pile-stabilizing frame for a single pile inserted in a seat bottom according to claim 1, wherein: the pile stabilizing truss comprises 4 supporting cylinder columns, and the supporting cylinder columns are arranged in a rectangular structure.
6. The pile-stabilizing frame for a single pile inserted in a seat bottom according to claim 1, wherein: the pile stabilizing platform is fixedly provided with a plurality of sleeves matched with the supporting cylinder columns, and the pile stabilizing platform is sleeved on the supporting cylinder columns through the sleeves and is fixedly connected with the supporting cylinder columns.
7. The pile-stabilizing frame for a single pile inserted in a seat bottom according to claim 1, wherein: and a plurality of balance buoyancy tanks are fixedly arranged on the pile stabilizing truss below the pile embracing mechanism.
8. A pile sinking method using the seat bottom pile-inserting type single-pile-stabilizing frame according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
(1) shipping and transporting the single-pile stabilizing frame: the single-pile stabilizing frame is transported to a designated sea area by a ship;
(2) the single pile stabilizing frame is entered, lifted, turned over and sunk: hoisting and turning over the single-pile stabilizing frame in the step (1) by using a hoisting tool, so that the single-pile stabilizing frame sinks on the seabed at a designed position, pile stabilizing platforms on the single-pile stabilizing frame are all positioned above the sea level in the turning over process, the pile stabilizing platforms are parallel to the sea level after the single-pile stabilizing frame sinks, then positioning columns are respectively inserted into supporting cylinder columns at four corners of the single-pile stabilizing frame, and positioning piles are driven into the seabed, so that the single-pile stabilizing frame is fixed on the seabed;
(3) installing and fixing the single pile: opening an arm on the pile stabilizing platform, vertically hoisting a single pile to be fixed into a pile feeding port, then closing the arm, and adjusting the verticality of the single pile through a guiding roller on a single pile guiding mechanism to ensure that the verticality deviation of the single pile is not more than 1.0 per thousand;
after the single pile is adjusted, the single pile is firstly sunk into the seabed by using the self weight of the single pile, and then the hydraulic hammer is used for hydraulically hammering the single pile to sink the pile after the single pile is stabilized, wherein the verticality deviation of the single pile after the pile sinking is not more than 3.0 thousandth;
(4) dismantling the single pile stabilizing frame: and opening the holding arm, removing the guide idler wheel from the single pile, lifting and pulling out the positioning pile, and then lifting the single pile stabilizing frame to a ship to transport to the next position.
9. The pile sinking method of the pedestal pile-inserting type single-pile-stabilizing frame according to claim 8, characterized in that: in the step (2), a main crane ship and an auxiliary crane ship are simultaneously used for lifting and turning over the single-pile stable pile frame, the main crane ship lifts the top of the single-pile stable pile frame through a lifting hook, and the auxiliary crane ship lifts the tail of the single-pile stable pile frame through the lifting hook;
the main crane ship and the auxiliary crane ship are matched to transversely hoist the single-pile stabilizing frame to the sea surface, the auxiliary crane ship is started to lower the tail part of the single-pile stabilizing frame to a position 4 m-5 m away from the seabed mud surface, the tail part of the single-pile stabilizing frame is kept stable, and the main crane ship is started to lift the single-pile stabilizing frame to enable a pile stabilizing platform on the single-pile stabilizing frame to rotate to a horizontal state;
then, the main lifting vessel continues to lift the single-pile stabilizing frame upwards, so that the tail of the single-pile stabilizing frame is lifted to a position 2 m-3 m above the water surface, and at the moment, the lifting hook of the auxiliary lifting vessel is taken down from the tail of the single-pile stabilizing frame;
and then adjusting the placing angle of the single-pile stabilizing frame to a design position, immersing the single-pile stabilizing frame into seawater by a main crane ship falling hook to sit at the bottom, arranging a pile stabilizing platform above the sea level, adjusting the position of the single-pile stabilizing frame, inserting positioning columns into the supporting cylinder columns at the four corners of the single-pile stabilizing frame respectively after the position of the single-pile stabilizing frame is adjusted, driving positioning piles into the seabed, and further fixing the single-pile stabilizing frame on the seabed.
10. The pile sinking method of the pedestal pile-inserting type single-pile-stabilizing frame according to claim 8, characterized in that: in the step (3), after the single pile is hoisted into the pile feeding port, the lifting hook is not released, the single pile sinks to the seabed mud surface under the action of self weight, when the stability of the single pile is confirmed, the stay cable with a certain length is continuously lowered, so that the single pile is in a state of no stress and no unhooking, the observation is carried out for 15 minutes, the lifting hook on the single pile is released after the stability of the single pile is confirmed, and the primary fixing of the single pile is completed;
then, carrying out hydraulic hammering pile sinking on the single pile by using a hydraulic hammer, wherein the hydraulic hammer and the single pile are coaxially arranged; after the hydraulic hammer is contacted with the single pile for the first time, the hydraulic hammer is gradually put down, so that the weight of the hydraulic hammer acting on the single pile is gradually increased, the verticality of the single pile is not changed, the hydraulic hammer is continuously used for hammering the single pile for construction by small-equivalent hydraulic pressure firstly through the hydraulic hammer, the verticality of the single pile is observed, the single pile is observed and adjusted when the single pile is sunk for 1 m-2 m every time, and the hydraulic hammer is changed into continuous hydraulic hammering pile sinking when the verticality of the single pile is still not changed after 3-4 times of repeated operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010069364.0A CN111139830A (en) | 2020-01-21 | 2020-01-21 | Seat bottom pile inserting type single pile stabilizing frame and pile sinking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010069364.0A CN111139830A (en) | 2020-01-21 | 2020-01-21 | Seat bottom pile inserting type single pile stabilizing frame and pile sinking method |
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| CN111139830A true CN111139830A (en) | 2020-05-12 |
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| CN202010069364.0A Pending CN111139830A (en) | 2020-01-21 | 2020-01-21 | Seat bottom pile inserting type single pile stabilizing frame and pile sinking method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627176A (en) * | 2020-12-03 | 2021-04-09 | 保利长大工程有限公司 | Construction method of large-diameter single-pile stabilizing platform |
| CN112726615A (en) * | 2020-12-29 | 2021-04-30 | 广东精铟海洋工程股份有限公司 | Motion compensation pile gripper |
| CN112832221A (en) * | 2021-01-15 | 2021-05-25 | 江苏佳美海洋工程装备有限公司 | Double-layer pile stabilizing platform with GPS |
| CN113106973A (en) * | 2021-03-04 | 2021-07-13 | 中国铁建港航局集团有限公司 | Construction method of single pile |
| CN113897960A (en) * | 2021-10-15 | 2022-01-07 | 江苏长风海洋装备制造有限公司 | Install in steady pile platform's high adjustable steel-pipe pile positioner of accuracy |
| CN117364763A (en) * | 2023-12-07 | 2024-01-09 | 江苏筑港建设集团有限公司 | Pile sinking construction process for wharf pile |
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2020
- 2020-01-21 CN CN202010069364.0A patent/CN111139830A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627176A (en) * | 2020-12-03 | 2021-04-09 | 保利长大工程有限公司 | Construction method of large-diameter single-pile stabilizing platform |
| CN112726615A (en) * | 2020-12-29 | 2021-04-30 | 广东精铟海洋工程股份有限公司 | Motion compensation pile gripper |
| CN112832221A (en) * | 2021-01-15 | 2021-05-25 | 江苏佳美海洋工程装备有限公司 | Double-layer pile stabilizing platform with GPS |
| CN113106973A (en) * | 2021-03-04 | 2021-07-13 | 中国铁建港航局集团有限公司 | Construction method of single pile |
| CN113897960A (en) * | 2021-10-15 | 2022-01-07 | 江苏长风海洋装备制造有限公司 | Install in steady pile platform's high adjustable steel-pipe pile positioner of accuracy |
| CN117364763A (en) * | 2023-12-07 | 2024-01-09 | 江苏筑港建设集团有限公司 | Pile sinking construction process for wharf pile |
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