阅读说明：本技术 一种用于深水导管架桩柱沉桩的水下稳桩系统及沉桩方法 (Underwater pile stabilizing system and pile sinking method for pile sinking of deep water jacket pile ) 是由 张继彪 陆泽城 时蓓玲 胡灵斌 李靖 韦奋祥 夏月 于 2020-04-30 设计创作，主要内容包括：本发明公开了一种用于深水导管架桩柱沉桩的水下稳桩系统,包括绞车平台、稳桩平台、一根定位桩、四根辅助桩、姿态监测系统和操控系统。绞车平台包括绞车平台框架、一根插桩杆和四台绞车；绞车平台框架为呈四方体的空间桁架结构；插桩杆安装在绞车平台框架的底面中心；四台绞车一一对应地设在绞车平台框架的顶面的四周边缘中部；稳桩平台包括稳桩平台框架、四个浮桶、一套定位桩抱桩器、四套辅助桩抱桩器和四套工程桩定位机构。本发明的水下稳桩系统,其中的稳桩平台能借助于定位桩和绞车平台上的绞车实现精确下沉和提升,达到稳桩目的,从而能提高沉桩精度。本发明还公开了一种用于深水导管架桩柱的沉桩方法,能简化施工工艺,提高沉桩效率。(The invention discloses an underwater pile stabilizing system for pile sinking of a deep water jacket pile. The winch platform comprises a winch platform frame, a pile inserting rod and four winches; the winch platform frame is of a tetragonal space truss structure; the pile inserting rod is arranged in the center of the bottom surface of the winch platform frame; the four winches are correspondingly arranged in the middle of the peripheral edge of the top surface of the winch platform frame one by one; the pile stabilizing platform comprises a pile stabilizing platform frame, four floating barrels, a set of positioning pile embracing device, four sets of auxiliary pile embracing devices and four sets of engineering pile positioning mechanisms. According to the underwater pile stabilizing system, the pile stabilizing platform can realize accurate sinking and lifting by means of the positioning pile and the winch on the winch platform, so that the pile stabilizing purpose is achieved, and the pile sinking precision can be improved. The invention also discloses a pile sinking method for the deep water jacket pile, which can simplify the construction process and improve the pile sinking efficiency.)

1. An underwater pile stabilizing system for pile sinking of a deep water jacket pile comprises a winch platform, a pile stabilizing platform, a positioning pile, four auxiliary piles, a posture monitoring system and an operation system; it is characterized in that the preparation method is characterized in that,

the winch platform comprises a winch platform frame, a pile inserting rod and four winches; the winch platform frame is of a tetragonal space truss structure; the pile inserting rod is arranged in the center of the bottom surface of the winch platform frame; the four winches are correspondingly arranged in the middle of the peripheral edge of the top surface of the winch platform frame one by one;

the pile stabilizing platform comprises a pile stabilizing platform frame, four floating barrels, a set of positioning pile embracing device, four sets of auxiliary pile embracing devices and four sets of engineering pile positioning mechanisms; wherein the content of the first and second substances,

the pile stabilizing platform frame is of a tetragonal space truss structure, and the plane geometric dimension of the pile stabilizing platform frame is larger than that of the winch platform; the top surface and the bottom surface of the center of the pile stabilizing platform frame are provided with a central top panel and a central bottom panel in a one-to-one correspondence manner, and the centers of the central top panel and the central bottom panel are coaxially provided with a positioning pile through hole; the top surfaces and the bottom surfaces of four corners of the pile stabilizing platform frame are also provided with a corner top panel and a corner bottom panel in a one-to-one correspondence manner, and the corner top panel and the corner bottom panel of each corner are respectively and coaxially provided with an auxiliary pile through hole; the middle parts of the peripheral edges of the pile stabilizing platform frame are respectively provided with an engineering pile channel;

four floating barrels are uniformly distributed in the pile stabilizing platform frame, and the lower part of each floating barrel is provided with a water inlet and outlet valve;

the set of positioning pile embracing device comprises two groups of positioning pile clamping blocks; one group of positioning pile clamping blocks is arranged on a central top panel of the pile stabilizing platform frame and is uniformly distributed along the circumference of a positioning pile through hole, and the other group of positioning pile clamping blocks is arranged on a central bottom panel of the pile stabilizing platform frame and is uniformly distributed along the circumference of the positioning pile through hole;

each set of auxiliary pile gripper comprises two sets of auxiliary pile clamping blocks; one group of auxiliary pile clamping blocks in the four sets of auxiliary pile grippers are correspondingly arranged on the four corner top panels one by one and are uniformly distributed along the circumference of the auxiliary pile perforation;

the four engineering pile positioning mechanisms are correspondingly arranged on the top surface of the pile stabilizing platform frame one by one and are uniformly distributed along the circumference of the engineering pile channel;

the attitude monitoring system is arranged on the pile stabilizing platform;

the control system is respectively connected with four winches, water inlet and outlet valves on four floating barrels, a set of positioning pile gripper, four sets of auxiliary pile grippers, four sets of engineering pile positioning mechanisms and a posture monitoring system through signal wires;

the pile stabilizing platform is located on the water surface through four floating barrels, and is initially limited by a set of pile holding devices and positioning piles fixed on the seabed, and is initially limited by four sets of auxiliary pile holding devices and four auxiliary piles fixed on the seabed; the winch platform is arranged at the top of the positioning pile through the pile inserting rod and is connected with the pile stabilizing platform below through cables on four winches, so that the pile stabilizing platform is lowered or lifted along the positioning pile and the four auxiliary piles; when the pile stabilizing platform is lifted to the designed elevation position, the positioning pile is tightly held by one set of positioning pile gripper, and the four auxiliary piles are tightly held by the four sets of auxiliary pile grippers in a one-to-one correspondence manner, so that the pile stabilizing platform is fixed on the positioning pile and the four auxiliary piles.

2. The underwater pile stabilization system for deep water jacket pile driving according to claim 1, wherein the winch platform further comprises four cable guide wheels installed in the middle of the peripheral side of the winch platform frame in a one-to-one correspondence.

3. The underwater pile stabilizing system for deep water jacket pile driving according to claim 1, wherein a lifting lug is further provided on each of the four corner top panels.

4. The underwater pile stabilization system for deep water jacket pile driving according to claim 1, wherein each set of spud grippers further comprises two sets of spud clamping rollers mounted one-to-one on the central top plate and the central bottom plate and respectively staggered with the two sets of spud clamping blocks along the spud through-holes.

5. The underwater pile stabilization system for deep-water jacket pile driving according to claim 1, wherein each set of auxiliary pile grippers further comprises two sets of auxiliary pile gripper rollers; a group of auxiliary pile clamping pile rollers in the four sets of auxiliary pile grippers are correspondingly arranged on the four corner top panels one by one and are arranged in a staggered mode with a group of auxiliary pile clamping blocks along the auxiliary pile through holes, and a group of auxiliary pile clamping pile rollers in the four sets of auxiliary pile grippers are correspondingly arranged on the four corner bottom panels one by one and are arranged in a staggered mode with a group of auxiliary pile clamping blocks along the auxiliary pile through holes.

6. A pile sinking method for a deep water jacket pile, which is implemented by using the underwater pile stabilizing system for deep water jacket pile sinking according to claim 1, wherein the pile sinking method comprises the steps of:

firstly, a positioning pile is driven by a construction ship, then a pile stabilizing platform is lifted above the positioning pile by a lifting device on the construction ship, then the pile stabilizing platform is lowered to enable the positioning pile to be perforated and sleeved on the positioning pile, and then the hook is loosened, and at the moment, the four floating buckets enable the pile stabilizing platform to float on the water surface due to no water;

step two, the pile stabilizing platform is tightly held and fixed with the positioning piles through a set of positioning pile embracing device, then four auxiliary piles are drilled and arranged by utilizing four auxiliary piles of the pile stabilizing platform, and after the four auxiliary piles are arranged, the set of positioning pile embracing device is loosened;

thirdly, installing the winch platform on the top of the positioning pile by using hoisting equipment on the construction ship, and connecting the cables on the four winches on the winch platform with the four lifting lugs on the pile stabilizing platform in a one-to-one correspondence manner;

starting four winches on the winch platform, lifting the pile stabilizing platform to be separated from the water surface through cables on the four winches, starting a set of positioning pile embracing device and four sets of auxiliary pile embracing devices on the pile stabilizing platform after the pile stabilizing platform is lifted in place, fixing the pile stabilizing platform, the positioning piles and the four auxiliary piles, and stopping the four winches;

hoisting a first engineering pile into an engineering pile channel by using hoisting equipment on a construction ship, hammering and sinking the first engineering pile by using piling equipment on the construction ship, and adjusting the verticality of the first engineering pile at any time in the hammering and sinking process by using an engineering pile positioning mechanism corresponding to the engineering pile channel on a pile stabilizing platform;

step six, when the substitute pile on the top of the first engineering pile reaches the pile stabilizing platform, the pile driving equipment stops hammering and prepares for descending the pile stabilizing platform;

step seven, firstly, removing a set of positioning pile embracing device and four sets of auxiliary pile embracing devices on the pile stabilizing platform, loosening the pile stabilizing platform, the positioning piles and the auxiliary piles, simultaneously, opening four winches, descending the pile stabilizing platform, simultaneously opening water inlet and outlet valves of four floating barrels in the pile stabilizing platform, and enabling the four floating barrels to enter water so as to remove the buoyancy of the four floating barrels and enable the pile stabilizing platform to enter water;

step eight, under the assistance of the pile stabilizing platform, pile driving equipment on a construction ship continues pile sinking operation of the first engineering pile until the first engineering pile is hammered to the designed elevation;

step nine, repeating the step four to the step eight, and sequentially completing pile sinking operation of other three engineering piles;

step ten, removing one set of positioning pile embracing machine and four sets of auxiliary pile embracing machines on the pile stabilizing platform, loosening the pile stabilizing platform, the positioning piles and the four auxiliary piles, and simultaneously starting four winches to lift the pile stabilizing platform to leave the water surface; after the seawater in the four floating barrels is discharged, the water inlet and outlet valves of the four floating barrels are closed;

step eleven, lowering the pile stabilizing platform to the water surface, floating the pile stabilizing platform on the water surface under the action of the four floating barrels, and untying mooring ropes connected with the pile stabilizing platform on the four winches;

and step twelve, dismantling the winch platform, the pile stabilizing platform, the positioning pile and the auxiliary pile in sequence, and finishing construction.

7. The pile sinking method for the deepwater jacket pile according to claim 6, wherein the first step and the tenth step are carried out in the time, and the control system is used for controlling the stable pile platform to be lifted and lowered stably and to be stable in water according to the attitude information of the stable pile platform detected by the attitude monitoring system.

Technical Field

The invention relates to an underwater pile stabilizing system and a pile sinking method for pile sinking of a deep water jacket pile.

Background

At present, when an offshore wind turbine foundation is built, a plurality of engineering piles need to be sunk to the seabed, at the moment, the engineering piles need to be hoisted to pile sinking points through hoisting, and then pile sinking is carried out. In order to ensure that the verticality of a pile body is within 3 per thousand in the process of smoothly inserting the engineering pile into the mud and sinking the pile, a pile stabilizing platform is usually used for stabilizing the engineering pile. At present, offshore wind farms built in China all adopt offshore wind farms, the water depth condition is generally less than 10m, and the supporting structure type is mainly a high pile cap foundation and a single pile foundation. With the development of offshore wind farms, the offshore distances and the water depths of the wind farms are continuously increased, and the conventional offshore infrastructure type is difficult to meet the requirements of deep-sea wind energy development. In the sea area with the water depth of about 30m, the jacket foundation has better economic advantages relatively. Because the pile sinking depth of jacket foundation pile is darker to be close to the deep open sea gradually, because reasons such as wave current lead to steady stake difficulty, pile sinking precision is difficult to control, often appear the condition of pile sinking failure, the operating expenses are higher.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an underwater pile stabilizing system and a pile sinking method for deep water jacket pile sinking, which can realize the accurate sinking of a pile stabilizing platform by means of a positioning pile and a winch on a winch platform so as to achieve the aim of pile stabilizing and improve the precision of pile sinking.

One technical scheme for achieving the purpose of the invention is as follows: an underwater pile stabilizing system for pile sinking of a deep water jacket pile comprises a winch platform, a pile stabilizing platform, a positioning pile, four auxiliary piles, a posture monitoring system and an operation system;

the winch platform comprises a winch platform frame, a pile inserting rod and four winches; the winch platform frame is of a tetragonal space truss structure; the pile inserting rod is arranged in the center of the bottom surface of the winch platform frame; the four winches are correspondingly arranged in the middle of the peripheral edge of the top surface of the winch platform frame one by one;

the pile stabilizing platform comprises a pile stabilizing platform frame, four floating barrels, a set of positioning pile embracing device, four sets of auxiliary pile embracing devices and four sets of engineering pile positioning mechanisms; wherein the content of the first and second substances,

the pile stabilizing platform frame is of a tetragonal space truss structure, and the plane geometric dimension of the pile stabilizing platform frame is larger than that of the winch platform; the top surface and the bottom surface of the center of the pile stabilizing platform frame are provided with a central top panel and a central bottom panel in a one-to-one correspondence manner, and the centers of the central top panel and the central bottom panel are coaxially provided with a positioning pile through hole; the top surfaces and the bottom surfaces of four corners of the pile stabilizing platform frame are also provided with a corner top panel and a corner bottom panel in a one-to-one correspondence manner, and the corner top panel and the corner bottom panel of each corner are respectively and coaxially provided with an auxiliary pile through hole; the middle parts of the peripheral edges of the pile stabilizing platform frame are respectively provided with an engineering pile channel;

four floating barrels are uniformly distributed in the pile stabilizing platform frame, and the lower part of each floating barrel is provided with a water inlet and outlet valve;

the set of positioning pile embracing device comprises two groups of positioning pile clamping blocks; one group of positioning pile clamping blocks is arranged on a central top panel of the pile stabilizing platform frame and is uniformly distributed along the circumference of a positioning pile through hole, and the other group of positioning pile clamping blocks is arranged on a central bottom panel of the pile stabilizing platform frame and is uniformly distributed along the circumference of the positioning pile through hole;

each set of auxiliary pile gripper comprises two sets of auxiliary pile clamping blocks; one group of auxiliary pile clamping blocks in the four sets of auxiliary pile grippers are correspondingly arranged on the four corner top panels one by one and are uniformly distributed along the circumference of the auxiliary pile perforation;

the four engineering pile positioning mechanisms are correspondingly arranged on the top surface of the pile stabilizing platform frame one by one and are uniformly distributed along the circumference of the engineering pile channel;

the attitude monitoring system is arranged on the pile stabilizing platform;

the control system is respectively connected with four winches, water inlet and outlet valves on four floating barrels, a set of positioning pile gripper, four sets of auxiliary pile grippers, four sets of engineering pile positioning mechanisms and a posture monitoring system through signal wires;

the pile stabilizing platform is located on the water surface through four floating barrels, and is initially limited by a set of pile holding devices and positioning piles fixed on the seabed, and is initially limited by four sets of auxiliary pile holding devices and four auxiliary piles fixed on the seabed; the winch platform is arranged at the top of the positioning pile through the pile inserting rod and is connected with the pile stabilizing platform below through cables on four winches, so that the pile stabilizing platform is lowered or lifted along the positioning pile and the four auxiliary piles; when the pile stabilizing platform is lifted to the designed elevation position, the positioning pile is tightly held by one set of positioning pile gripper, and the four auxiliary piles are tightly held by the four sets of auxiliary pile grippers in a one-to-one correspondence manner, so that the pile stabilizing platform is fixed on the positioning pile and the four auxiliary piles.

The underwater pile stabilizing system for pile sinking of the deepwater jacket pile is characterized in that the winch platform further comprises four cable guide wheels, and the four cable guide wheels are correspondingly arranged in the middle of the peripheral side face of the winch platform frame one by one.

The underwater pile stabilizing system for pile sinking of the deep water jacket pile is characterized in that the four corner top panels are respectively provided with a lifting lug.

In the underwater pile stabilizing system for pile sinking of the deep water jacket, each set of positioning pile gripper further comprises two sets of positioning pile clamping rollers, and the two sets of positioning pile clamping rollers are correspondingly arranged on the central top panel and the central bottom panel one by one and are respectively arranged along the positioning pile through holes in a staggered manner with the two sets of positioning pile clamping blocks.

The underwater pile stabilizing system for pile sinking of the deep water jacket pile is characterized in that each set of auxiliary pile gripper further comprises two sets of auxiliary pile clamping roller wheels; a group of auxiliary pile clamping pile rollers in the four sets of auxiliary pile grippers are correspondingly arranged on the four corner top panels one by one and are arranged in a staggered mode with a group of auxiliary pile clamping blocks along the auxiliary pile through holes, and a group of auxiliary pile clamping pile rollers in the four sets of auxiliary pile grippers are correspondingly arranged on the four corner bottom panels one by one and are arranged in a staggered mode with a group of auxiliary pile clamping blocks along the auxiliary pile through holes.

The other technical scheme for realizing the purpose of the invention is as follows: the invention discloses a pile sinking method for a deep water jacket pile, which is realized by adopting the underwater pile stabilizing system for deep water jacket pile sinking, and comprises the following steps:

firstly, a positioning pile is driven by a construction ship, then a pile stabilizing platform is lifted above the positioning pile by a lifting device on the construction ship, then the pile stabilizing platform is lowered to enable the positioning pile to be perforated and sleeved on the positioning pile, and then the hook is loosened, and at the moment, the four floating buckets enable the pile stabilizing platform to float on the water surface due to no water;

step two, the pile stabilizing platform is tightly held and fixed with the positioning piles through a set of positioning pile embracing device, then four auxiliary piles are drilled and arranged by utilizing four auxiliary piles of the pile stabilizing platform, and after the four auxiliary piles are arranged, the set of positioning pile embracing device is loosened;

thirdly, installing the winch platform on the top of the positioning pile by using hoisting equipment on the construction ship, and connecting the cables on the four winches on the winch platform with the four lifting lugs on the pile stabilizing platform in a one-to-one correspondence manner;

starting four winches on the winch platform, lifting the pile stabilizing platform to be separated from the water surface through cables on the four winches, starting a set of positioning pile embracing device and four sets of auxiliary pile embracing devices on the pile stabilizing platform after the pile stabilizing platform is lifted in place, fixing the pile stabilizing platform, the positioning piles and the four auxiliary piles, and stopping the four winches;

hoisting a first engineering pile into an engineering pile channel by using hoisting equipment on a construction ship, hammering and sinking the first engineering pile by using piling equipment on the construction ship, and adjusting the verticality of the first engineering pile at any time in the hammering and sinking process by using an engineering pile positioning mechanism corresponding to the engineering pile channel on a pile stabilizing platform;

step six, when the substitute pile on the top of the first engineering pile reaches the pile stabilizing platform, the pile driving equipment stops hammering and prepares for descending the pile stabilizing platform;

step seven, firstly, removing a set of positioning pile embracing device and four sets of auxiliary pile embracing devices on the pile stabilizing platform, loosening the pile stabilizing platform, the positioning piles and the auxiliary piles, simultaneously, opening four winches, descending the pile stabilizing platform, simultaneously opening water inlet and outlet valves of four floating barrels in the pile stabilizing platform, and enabling the four floating barrels to enter water so as to remove the buoyancy of the four floating barrels and enable the pile stabilizing platform to enter water;

step eight, under the assistance of the pile stabilizing platform, pile driving equipment on a construction ship continues pile sinking operation of the first engineering pile until the first engineering pile is hammered to the designed elevation;

step nine, repeating the step four to the step eight, and sequentially completing pile sinking operation of other three engineering piles;

step ten, removing one set of positioning pile embracing machine and four sets of auxiliary pile embracing machines on the pile stabilizing platform, loosening the pile stabilizing platform, the positioning piles and the four auxiliary piles, and simultaneously starting four winches to lift the pile stabilizing platform to leave the water surface; after the seawater in the four floating barrels is discharged, the water inlet and outlet valves of the four floating barrels are closed;

step eleven, lowering the pile stabilizing platform to the water surface, floating the pile stabilizing platform on the water surface under the action of the four floating barrels, and untying mooring ropes connected with the pile stabilizing platform on the four winches;

and step twelve, dismantling the winch platform, the pile stabilizing platform, the positioning pile and the auxiliary pile in sequence, and finishing construction.

In the pile sinking method for the deep water jacket pile, the operation and control system detects the attitude information of the pile stabilizing platform according to the attitude monitoring system and controls the stable lifting and lowering of the pile stabilizing platform and the stability in water when the first step and the tenth step are carried out.

The underwater pile stabilizing system and the pile sinking method for pile sinking of the deepwater jacket pile have the following characteristics:

1) the underwater pile stabilizing system can realize pile sinking operation and pile stabilization by separating from the self-elevating platform ship, and achieves the purposes of simplifying construction, improving construction quality and reducing construction cost;

2) the pile stabilizing platform in the underwater pile stabilizing system has self-floating property which is very easy to realize, can complete pile holding operation with a positioning pile under the assistance of hoisting equipment, and can realize fixation with the positioning pile and an auxiliary pile;

3) the pile stabilizing platform in the underwater pile stabilizing system can realize accurate sinking and lifting by means of the winch on the winch platform fixed on the positioning pile, so that the pile stabilizing purpose is achieved, and the pile sinking precision can be improved;

4) the pile stabilizing platform in the underwater pile stabilizing system can be used for driving four engineering piles by sinking once, so that single piles can be driven, four piles of a jacket foundation can be driven, and the pile positions can be accurately positioned;

5) the pile stabilizing platform and the winch platform in the underwater pile stabilizing system are simple in structure and convenient to recover, and are beneficial to improving the pile sinking operation efficiency.

6) The pile sinking method for the deep water jacket pile can improve the efficiency and the pile sinking precision.

Drawings

Fig. 1 is a schematic structural view of an underwater pile stabilizing system for deep water jacket pile sinking of the present invention;

fig. 2 is a schematic structural view of a winch platform in the underwater pile stabilization system for deep water jacket pile sinking of the present invention;

fig. 3 is a schematic structural view of a pile stabilizing platform in the underwater pile stabilizing system for deep water jacket pile sinking of the present invention;

fig. 4 is a state diagram of the pile sinking method for a deep water jacket pile of the present invention, which is performed as step one;

fig. 5 is a state diagram of the pile sinking method for the deep water jacket pile of the present invention, which proceeds to step two;

fig. 6 is a state diagram of the pile sinking method for the deep water jacket pile of the present invention, which is performed in step three;

fig. 7 is a state diagram of the pile sinking method for a deep water jacket pile of the present invention, which is performed in step four;

fig. 8 is a state diagram of the pile sinking method for a deep water jacket pile of the present invention, which is performed in step five;

fig. 9 is a state diagram of the pile sinking method for a deep water jacket pile of the present invention, which is performed in step six;

fig. 10 is a state diagram of the pile sinking method for a deep water jacket pile of the present invention, which is performed in step seven;

fig. 11 is a state diagram of the pile sinking method for a deep water jacket pile of the present invention, which is performed in step eight;

fig. 12 is a state diagram of the pile sinking method for a deep water jacket pile of the present invention, which proceeds to step nine;

fig. 13 is a state diagram of the pile sinking method for a deep water jacket pile of the present invention performed in step ten;

fig. 14 is a state diagram of the pile sinking method for a deep water jacket pile of the present invention, which is performed in step eleven;

fig. 15 is a state diagram of the pile sinking method for a deep water jacket pile of the present invention, which is performed in step twelve.

Detailed Description

The invention will be further explained with reference to the drawings.

Referring to fig. 1 to 3, the underwater pile stabilizing system for deep-water jacket pile sinking of the present invention includes a winch platform 10, a pile stabilizing platform 20, a positioning pile 30, four auxiliary piles 40, an attitude monitoring system and an operation system.

The winch platform 10 comprises a winch platform frame 11, a pile inserting rod 12, four winches 13 and four cable guide wheels 14; the winch platform frame 11 is a tetragonal space truss structure; the pile inserting rod 12 is arranged in the center of the bottom surface of the winch platform frame 11; the four winches 13 are correspondingly arranged in the middle of the peripheral edge of the top surface of the winch platform frame 11 one by one; the four cable guide wheels 14 are correspondingly arranged in the middle of the peripheral side surface of the winch platform frame 11 one by one.

The pile stabilizing platform 20 comprises a pile stabilizing platform frame 21, four floating barrels 22, a set of positioning pile embracing machine, four sets of auxiliary pile embracing machines and four sets of engineering pile positioning mechanisms 27; wherein the content of the first and second substances,

the pile stabilizing platform frame 21 is of a tetragonal space truss structure, and the plane geometric dimension of the pile stabilizing platform frame is larger than that of the winch platform 11; a central top panel and a central bottom panel are correspondingly arranged on the top surface and the bottom surface of the center of the pile stabilizing platform frame 21 one by one, and a positioning pile through hole 211 is coaxially arranged in the centers of the central top panel and the central bottom panel; the top and bottom surfaces of four corners of the pile stabilizing platform frame 21 are also provided with a corner top panel and a corner bottom panel in a one-to-one correspondence manner, and the corner top panel and the corner bottom panel of each corner are respectively provided with an auxiliary pile through hole 212 coaxially; the middle parts of the peripheral edges of the pile stabilizing platform frame 21 are respectively provided with an engineering pile channel 213; the four corner top panels are also respectively provided with a lifting lug 214;

four floating buckets 22 are uniformly distributed in the pile stabilizing platform frame 21, and the lower part of each floating bucket 22 is provided with a water inlet and outlet valve;

the set of positioning pile embracing fixator 23 comprises two sets of positioning pile clamping blocks 231 and two sets of positioning pile clamping rollers 232; one group of the spud clamping blocks 231 is arranged on the central top panel of the pile stabilizing platform frame 21 and is uniformly distributed along the circumference of the spud through hole 211, and the other group of the spud clamping blocks 231 is arranged on the central bottom panel of the pile stabilizing platform frame 21 and is uniformly distributed along the circumference of the spud through hole; the two groups of positioning pile clamping rollers 232 are correspondingly arranged on the central top panel and the central bottom panel one by one and are respectively staggered with the two groups of positioning pile clamping blocks 231 along the positioning pile through holes 211; the positioning pile clamping block 231 and the positioning pile clamping roller 232 are both provided with a horizontal adjusting mechanism; each set of spud clamping blocks 231 is used for clamping the spud 30; each set of spud clamping rollers 232 is used for positioning the pile stabilizing platform 20 with the spud 30.

Each set of auxiliary pile gripper 24 comprises two sets of auxiliary pile clamping blocks 241 and two sets of auxiliary pile clamping roller 242; one group of auxiliary pile clamping blocks 241 in the four sets of auxiliary pile grippers 24 are correspondingly arranged on the four corner top panels one by one and are uniformly distributed along the circumference of the auxiliary pile through holes 212, and the other group of auxiliary pile clamping blocks 241 in the four sets of auxiliary pile grippers 24 are correspondingly arranged on the four corner bottom panels one by one and are uniformly distributed along the circumference of the auxiliary pile through holes 212; a group of auxiliary pile clamping pile rollers 242 in the four sets of auxiliary pile grippers 24 are correspondingly arranged on the four corner top panels one by one and are staggered with a group of auxiliary pile clamping blocks 241 along the auxiliary pile through holes 212, and a group of auxiliary pile clamping pile rollers 242 in the four sets of auxiliary pile grippers 24 are correspondingly arranged on the four corner bottom panels one by one and are staggered with a group of auxiliary pile clamping blocks 241 along the auxiliary pile through holes 212; the auxiliary pile clamping block 241 and the auxiliary pile clamping roller 242 are both provided with a horizontal adjusting mechanism; each set of auxiliary pile gripping blocks 241 is for gripping an auxiliary pile 40; each set of auxiliary pile clamping rollers 242 is used for positioning the pile stabilizing platform 20 and the auxiliary pile 40;

the four engineering pile positioning mechanisms 25 are correspondingly arranged on the top surface of the pile stabilizing platform frame 21 one by one and are uniformly distributed along the circumference of the engineering pile channel 213; each set of engineering pile positioning mechanism 25 consists of four clamping rollers; the four clamping rollers are respectively provided with a horizontal adjusting mechanism; each set of engineering pile positioning mechanism 25 is used for adjusting the verticality of each engineering pile 50 during pile sinking;

the attitude monitoring system is arranged on the pile stabilizing platform 20, consists of a plurality of attitude sensors and is used for detecting the attitude of the pile stabilizing platform 20 in the whole pile sinking process;

the control system is respectively connected with four winches, water inlet and outlet valves on four floating barrels, a set of positioning pile gripper 23, four sets of auxiliary pile grippers 24, four sets of engineering pile positioning mechanisms 25 and a posture monitoring system through signal lines; the control system detects the attitude information of the pile stabilizing platform 20 according to the attitude monitoring system, and controls the stable lifting and lowering of the pile stabilizing platform 20 and the stability in water.

The pile stabilizing platform 20 is located on the water surface through four floating barrels 22, and the pile stabilizing platform 20 is initially limited by a set of pile holding devices and positioning piles 30 fixed on the seabed, and is initially limited by four sets of auxiliary pile holding devices and four auxiliary piles 40 fixed on the seabed; the winch platform 10 is installed on the top of the positioning pile 30 through the pile inserting rod 12, the winch platform 10 is connected with four lifting lugs 214 on the pile stabilizing platform 20 below through cables on four winches 13, and the pile stabilizing platform 20 is lowered or lifted along the positioning pile 30 and four auxiliary piles 40; when the pile stabilizing platform 20 is lifted to the designed elevation position, the positioning pile 30 is clasped by one set of positioning pile clasper, and the four auxiliary piles 40 are clasped by the four sets of auxiliary pile claspers in a one-to-one correspondence manner, so that the pile stabilizing platform 20 is fixed on the positioning pile 30 and the four auxiliary piles 40.

The underwater pile stabilizing system for pile sinking of the deepwater jacket pile disclosed by the invention has the advantages that the pile stabilizing platform has self-floating performance, can conveniently reach a specified position on the water surface through an auxiliary ship, is limited through one set of positioning pile embracing device and the positioning pile, is limited through four sets of auxiliary pile embracing devices and four auxiliary piles, and is lifted along the positioning pile and the four auxiliary piles through four winches on a winch platform fixed on the positioning pile, so that pile embracing or pile releasing can be conveniently and quickly realized, and the pile stabilizing effect is realized. The pile stabilizing platform and the winch platform have the characteristics of small size, light weight and high flexibility. The pile stabilizing platform can conveniently and quickly realize floating and stable sinking through the floating barrel.

Referring to fig. 4 to 15, the pile sinking method for deep water jacket piles of the present invention is implemented by using the underwater pile stabilizing system for deep water jacket pile sinking of the present invention, and includes the following steps:

firstly, a positioning pile is driven by a construction ship, then a pile stabilizing platform 20 is lifted above a positioning pile 30 through a lifting device on the construction ship, then the pile stabilizing platform 20 is lowered, a positioning pile through hole 211 of the pile stabilizing platform 20 is sleeved on the positioning pile 30 and then hooked loosely, the pile stabilizing platform 20 is positioned by the positioning pile 30, and at the moment, four floating buckets 22 in the pile stabilizing platform 20 enable the pile stabilizing platform 20 to float on the water surface due to no water;

step two, the pile stabilizing platform 20 is tightly held and fixed with the positioning piles 30 through a set of positioning pile embracing device 23, then four auxiliary piles 40 are driven by utilizing the four auxiliary pile through holes 212 of the pile stabilizing platform 20, and after the driving of the four auxiliary piles 40 is finished, the positioning pile embracing device 23 is loosened;

thirdly, firstly, installing the winch platform 10 on the top of the positioning pile 30 by using hoisting equipment on the construction vessel, and then connecting the cables 130 on the four winches 13 on the winch platform 10 with the four lifting lugs 214 on the pile stabilizing platform 20 in a one-to-one correspondence manner;

starting four winches 13 on the winch platform 10, and lifting the pile stabilizing platform 20 to be separated from the water surface through cables on the four winches 13, so that the influence of wave current on the pile stabilizing platform 20 in the pile sinking process can be avoided; the control system controls the speed of lowering the cable by each winch 13 according to the attitude information of the pile stabilizing platform 20 detected by the attitude monitoring system so as to ensure that the pile stabilizing platform 20 is stably lifted; after the pile stabilizing platform 20 is lifted to the right position, a set of positioning pile embracing device 23 and four sets of auxiliary pile embracing devices 24 on the pile stabilizing platform 20 are started, so that the pile stabilizing platform 20, the positioning piles 30 and the four auxiliary piles 40 are fixed, and the four winches 13 are stopped;

step five, firstly, hoisting a first engineering pile 50 into an engineering pile channel 213 by using hoisting equipment on a construction ship, then hammering and sinking the first engineering pile 50 by using piling equipment on the construction ship, and adjusting the verticality of the first engineering pile 50 in the hammering and sinking process by using an engineering pile positioning mechanism 27, corresponding to the engineering pile channel 213, on the pile stabilizing platform 20;

step six, when the alternate driving 5A on the first engineering pile 50 reaches the pile stabilizing platform 20, the driving equipment stops hammering and prepares to descend the pile stabilizing platform 20;

step seven, firstly, removing one set of positioning pile embracing device 23 and four sets of auxiliary pile embracing devices 24 on the pile stabilizing platform 20 to loosen the pile stabilizing platform 20, the positioning piles 30 and the four auxiliary piles 40, simultaneously, starting four winches 13 to descend the pile stabilizing platform 20, and controlling the speed of lowering the cable 130 by each winch 13 according to the posture information of the pile stabilizing platform 20 detected by the posture monitoring system by the control system so as to ensure that the pile stabilizing platform 20 descends stably; simultaneously opening water inlet and outlet valves of four floating barrels 22 in the pile stabilizing platform 20 to enable the four floating barrels 22 to enter water so as to remove buoyancy of the four floating barrels 22 and enable the pile stabilizing platform 20 to enter water, and after the pile stabilizing platform 20 descends to a proper position, re-opening a set of positioning pile embracing device 23 and four sets of auxiliary pile embracing devices 24 on the pile stabilizing platform 20 to enable the pile stabilizing platform 20 to be fixed with the positioning piles 30 and the four auxiliary piles 40;

step eight, with the aid of the pile stabilizing platform 20, pile driving equipment on the construction ship continues pile sinking operation of the first engineering pile 50 until the first engineering pile 50 is hammered to the designed elevation;

step nine, repeating the step four to the step eight, and sequentially completing pile sinking operation of the rest three engineering piles;

step ten, removing one set of positioning pile embracing device 23 and four sets of auxiliary pile embracing devices 24 on the pile stabilizing platform 20, loosening the pile stabilizing platform 20, the positioning piles 30 and the four auxiliary piles 40, simultaneously, starting the four winches 13, and lifting the pile stabilizing platform 20 to be away from the water surface; after the seawater in the four floating buckets 22 is discharged, the water inlet and outlet valves of the four floating buckets 22 are closed;

step eleven, lowering the pile stabilizing platform 20 to the water surface, floating the pile stabilizing platform 20 on the water surface under the action of the four floating barrels 22, and untying the cables 130 connected with the pile stabilizing platform 20 on the four winches 13;

and step twelve, sequentially dismantling the winch platform 10, the pile stabilizing platform 20, the positioning pile 30 and the auxiliary pile 40, and finishing construction.

And step one and step eleven are carried out, the control system detects the attitude information of the pile stabilizing platform 20 according to the attitude monitoring system, and controls the stable lifting and lowering of the pile stabilizing platform 20 and the stability in water.

The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.