CN115806027A

CN115806027A - Solid ballast method of floating wind power platform

Info

Publication number: CN115806027A
Application number: CN202211617325.5A
Authority: CN
Inventors: 魏笑科; 覃炳万; 胡力文; 李毫; 范宇豪; 温顺发
Original assignee: Guangzhou Wenchuan Heavy Industry Co ltd
Current assignee: Guangzhou Wenchuan Heavy Industry Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-03-17
Anticipated expiration: 2042-12-15
Also published as: CN115806027B

Abstract

The invention discloses a solid ballast method of a floating wind power platform, which comprises the steps of setting 12 solid ballast tanks, grouting each solid ballast tank according to the planned grouting sequence and the grouting cement weight of each solid ballast tank, simultaneously recording the draught data at a draught mark position after each grouting and the total amount of grouting cement to obtain the horizontal inclination and the vertical inclination, judging the draught condition of the floating wind power platform under the inclined side according to the horizontal inclination and the vertical inclination after each grouting, and adjusting the total amount of the current grouting cement if the draught is judged to be more than or equal to 1m; and if the draught is less than 1m, carrying out the next slurry tank until all grouting construction is finished. Therefore, the grouting construction quality can be accurately controlled, the stability of the whole floating type wind power platform structure is ensured, and the 12 solid ballast tanks are filled in sequence in six days, so that the construction efficiency is effectively improved. In addition, the scheme of the invention belongs to the domestic initiative and opens up the blank of the industry.

Description

Solid ballast method of floating wind power platform

Technical Field

The invention belongs to the technical field of offshore wind power foundations, and particularly relates to a solid ballast method of a floating wind power platform.

Background

With the continuous development and construction of offshore wind farms, the offshore (shore) high-quality wind resources and the exploitable sea areas are less and less. In the open sea area far away from the coast, the wind power resource is very rich, and the method has very wide development prospect. However, as the offshore distance increases, the water depth gradually increases, and when the water depth exceeds 50-60 m, the cost and the construction difficulty of the seabed-fixed wind turbine foundation widely adopted by the offshore wind farm are obviously increased, and no advantage is obtained. Therefore, the offshore floating platform (foundation) is bound to become an important research direction for the future offshore wind power development.

The main forms of the current mainstream offshore floating platforms are single column type, semi-submersible type, tension leg type and barge type. According to the environmental geographic conditions of the sea area in China, the semi-submersible type is the most suitable form for the floating wind power foundation of the sea area in China at present.

The existing semi-submersible type offshore floating platform is mainly in a column-stabilized platform configuration, is in an equilateral triangle layout and consists of upright columns, a heave plate, a lower floating body and an upper cross brace. Wherein, the upper cross support bottom is positioned above the wave crest and does not contact the water surface, thereby avoiding the slamming of the waves; the lower floating body is positioned below a waterline, the area of the waterline surface is mainly the cross-sectional area of the upright post, and the semi-submersible design can effectively reduce the platform motion response and load caused by waves. To ensure the stability of the entire structure of the offshore floating platform, the offshore floating platform needs to reach a certain draft, and then needs a larger external ballast, so that more ballast water tanks and solid ballast tanks need to be arranged. However, at present, no precedent exists in China that concrete is used as a solid ballast filler for large-scale pouring, no reference is provided for the weight of the poured concrete and the deviation of the gravity center of the poured concrete, and the pouring construction quality is difficult to accurately control, so that the offshore floating platform inclines and drafts, and the stability of the whole offshore floating platform structure is influenced.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a solid ballast method of a floating wind power platform, which can accurately control grouting construction quality, ensure the stability of the whole floating wind power platform structure and has high construction efficiency.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a solid ballast method of a floating wind power platform comprises the following steps:

step one, arranging a solid ballast tank; the floating wind power platform is in an equilateral triangle layout and comprises a first upright post, a second upright post, a third upright post, a first heave plate, a second heave plate, a third heave plate, a first lower floating body, a second lower floating body, a third lower floating body, a first upper cross brace, a second upper cross brace and a third upper cross brace; the first upright post is vertically connected to the first heave plate, the second upright post is vertically connected to the second heave plate, the third upright post is vertically connected to the third heave plate, the first lower floating body is connected between the first heave plate and the second heave plate, the second lower floating body is connected between the first heave plate and the third heave plate, the third lower floating body is connected between the second heave plate and the third heave plate, the first upper cross support is connected between the first upright post and the second upright post, the second upper cross support is connected between the first upright post and the third upright post, and the third upper cross support is connected between the second upright post and the third upright post;

the floating wind power platform is divided into a bilge, a first platform, a second platform, a third platform, a fourth platform, a fifth platform and a sixth platform from bottom to top;

the ballast tank is characterized in that a plurality of cabins are arranged on the tank bottom and are divided into a first solid ballast tank, a second solid ballast tank, a third solid ballast tank, a fourth solid ballast tank, a fifth solid ballast tank, a sixth solid ballast tank, a seventh solid ballast tank and an eighth solid ballast tank according to the functions of the cabins, and the other cabins are a water ballast tank, a pump tank and an empty tank respectively; the lifting device comprises a first lifting plate, a second lifting plate, a third lifting plate, a vertical column, a first lifting plate and a second lifting plate, wherein each lifting plate is provided with a central circular area which is coaxial with the vertical column and has the same cross-sectional area as the vertical column, the central circular area is internally provided with 3 empty cabins and 1 pump cabin which are arranged in four equal parts in a circular shape, the pump cabin on the first lifting plate is close to one side of the first lower floating body, the pump cabin on the second lifting plate is close to one side of the first lower floating body, and the pump cabin on the third lifting plate is close to one side of the second lower floating body; the first solid ballast tank and the second solid ballast tank are symmetrically arranged along a center line L1 of the floating wind power platform and are respectively positioned in an arc area at one side of the first heave plate, which is far away from the first lower floating body and the second lower floating body; the third solid ballast tank and the fourth solid ballast tank are symmetrically arranged along the central line L2 of the floating wind power platform and are respectively positioned in an arc area at one side of the second heave plate, which is far away from the first lower floating body and the third lower floating body; the fifth solid ballast tank and the sixth solid ballast tank are symmetrically arranged along a center line L3 of the floating wind power platform and are respectively positioned in an arc area at one side of the third heave plate, which is far away from the second lower floating body and the third lower floating body; the seventh solid ballast tank is disposed in an area outside of one end of the first lower hull proximate the second heave plate; the eighth solid ballast tank is disposed in an area outside an end of the second lower floating body near the third heave plate;

each upright column on the first platform is provided with four cabins which are divided into 3 ballast water tanks and 1 pump tank which are arranged in four equal parts in a circular shape according to the function of the cabin; three water ballast tanks on each upright post on the first platform and three empty tanks on each heave plate on the bottom tank are arranged up and down correspondingly; the pump chambers on each upright post on the first platform and the pump chambers of each heave plate on the bottom chamber are arranged in an up-and-down corresponding manner;

each upright column on the second platform is provided with four cabins which are divided into 3 ballast water tanks and 1 pump tank which are arranged in four equal parts in a circular shape according to the function of the cabin; the three ballast water tanks on each upright column on the second platform and the three ballast water tanks on each upright column on the first platform are arranged in an up-and-down corresponding manner; the pump cabins on each upright post on the second platform and the pump cabins of each heave plate on the first platform are arranged up and down correspondingly;

each upright post on the third platform is provided with four cabins; wherein, the first and the second end of the pipe are connected with each other,

the cabin on the first upright column on the third platform is divided into 3 water ballast tanks and 1 pump tank which are arranged in four equal parts in a circular shape according to the function of the cabin, the three water ballast tanks on the first upright column on the third platform and the three water ballast tanks on the first upright column on the second platform are arranged in an up-and-down corresponding mode, and the pump tank on the first upright column on the second platform are arranged in an up-and-down corresponding mode;

the cabin of the second upright column on the third platform is divided into 1 water ballast cabin, 1 pump cabin and 2 solid ballast cabins which are arranged in four equal parts in a circular shape according to the functions of the cabin; the 2 solid ballast tanks are respectively a ninth solid ballast tank and a tenth solid ballast tank; the two solid ballast tanks on the second upright post on the third platform and the two ballast water tanks on one side, far away from the lower floating body, of the second upright post on the second platform are arranged in an up-and-down corresponding mode; the ballast water tank and the pump chamber on the second upright post on the third platform are vertically and correspondingly arranged with the ballast water tank and the pump chamber on one side of the second upright post on the second platform close to the lower floating body;

the cabin of the third upright column on the third platform is divided into 1 ballast water cabin, 1 pump cabin and 2 solid ballast tanks which are arranged in four equal parts in a circular shape according to the function of the cabin; the 2 solid ballast tanks are an eleventh solid ballast tank and a twelfth solid ballast tank respectively, and the two solid ballast tanks on the third upright column on the third platform and the two water ballast tanks on one side, far away from the lower floating body, of the third upright column on the second platform are arranged in an up-and-down corresponding mode; the ballast water tank and the pump tank on the third upright post on the third platform are vertically and correspondingly arranged with the ballast water tank and the pump tank on one side of the third upright post on the second platform, which is close to the lower floating body;

each upright column on the fourth platform is provided with four cabins; wherein, the first and the second end of the pipe are connected with each other,

the cabin on the first upright column on the fourth platform is divided into 2 ballast water tanks and 2 pump tanks which are arranged in four equal parts in a circular shape according to the function of the cabin; the two ballast water tanks on the first upright post on the fourth platform and the two ballast water tanks on one side, far away from the lower floating body, of the first upright post on the third platform are arranged in an up-and-down corresponding manner; two pump chambers on the first upright post on the fourth platform and a ballast water chamber and a pump chamber on one side, close to the lower floating body, of the first upright post on the third platform are arranged in an up-and-down corresponding mode;

the cabin on the second upright column on the fourth platform is divided into 2 ballast water cabins and 2 pump cabins which are arranged in four equal parts in a circular shape according to the functions of the cabin; the two ballast water tanks on the second upright post on the fourth platform and the two ballast water tanks on one side, far away from the lower floating body, of the second upright post on the third platform are arranged in an up-and-down corresponding mode; two pump chambers on the second upright post on the fourth platform and a ballast water chamber and a pump chamber on one side, close to the lower floating body, of the second upright post on the third platform are arranged in an up-and-down corresponding mode;

the cabin on the third upright column on the fourth platform is divided into 2 ballast water tanks and 2 pump tanks which are arranged in four equal parts in a circular shape according to the function of the cabin; two ballast water tanks on a third upright column on the fourth platform and two ballast water tanks on one side, far away from the lower floating body, of the third upright column on the third platform are arranged in an up-and-down corresponding mode; two pump chambers on a third upright post on the fourth platform are vertically and correspondingly arranged with a ballast water chamber and a pump chamber on one side, close to the lower floating body, of the third upright post on the third platform;

each upright column on the fifth platform is provided with four cabins which are divided into 3 ballast water tanks and 1 pump tank which are arranged in four equal parts in a circular shape according to the function of the cabin; the two ballast water tanks on each upright column on the fifth platform and the two ballast water tanks on each upright column on the fourth platform are arranged in an up-and-down corresponding manner; the last ballast water tank and the pump tank on each upright column on the fourth platform are arranged up and down correspondingly with the two pump tanks on each upright column on the fourth platform; the pump cabin on the first upright column on the fourth platform is close to one side of the second lower floating body; a pump cabin on a second upright column on the fourth platform is close to one side of the third lower floating body; a pump cabin on a third upright column on the fourth platform is close to one side of the third lower floating body;

each upright column on the sixth platform is provided with four cabins which are divided into 1 water ballast tank, 2 empty tanks and 1 pump tank which are arranged in four equal parts in a circular shape according to the functions of the cabins; the ballast water tank and the empty tank on each upright column on the sixth platform are arranged up and down correspondingly with the two ballast water tanks on one side, far away from the lower floating body, of each upright column on the fifth platform; the pump cabins on each upright column on the sixth platform and the pump cabins on each upright column on the fifth platform are arranged in an up-down corresponding manner;

determining an initial state before grouting according to draft data of a draft mark position before grouting provided on site;

thirdly, grouting each solid ballast tank according to the planned grouting sequence and the grouting cement weight of each solid ballast tank;

step 3.1, filling the seventh solid ballast tank and the eighth solid ballast tank on the first day;

step 3.2, filling the third solid ballast tank and the fifth solid ballast tank on the next day;

step 3.3, filling the first solid ballast tank and the sixth solid ballast tank on the third day;

step 3.4, filling the second solid ballast tank and the fourth solid ballast tank on the fourth day;

step 3.5, filling the ninth solid ballast tank and the eleventh solid ballast tank on the fifth day;

step 3.6, filling the tenth solid ballast tank and the twelfth solid ballast tank on the sixth day;

recording the draft data and the total amount of grouting cement at the draft mark after each grouting to obtain the transverse inclination and the longitudinal inclination, and judging whether the draft of the floating wind power platform under the transverse inclination and the longitudinal inclination is less than 1m or not according to the transverse inclination and the longitudinal inclination after each grouting;

if the draught of the floating wind power platform under the transverse inclination and the longitudinal inclination is judged to be more than or equal to 1m, adjusting the total amount of the current grouting cement;

and if the draught of the floating wind power platform under the transverse inclination and the longitudinal inclination is judged to be less than 1m, carrying out next slurry tank till all grouting construction is completed.

As a preferable aspect of the present invention, while the ninth solid ballast tank is being grouted, a ballast water tank which is on the first column on the first platform and is away from the lower floating body side and is not close to the pump tank, and a ballast water tank which is on the first column on the second platform and is away from the lower floating body side and is not close to the pump tank are ballasted by filling water; and when the eleventh solid ballast tank is grouted, filling water into the ballast water tank which is far away from one side of the lower floating body and close to the pump tank on the first upright column on the first platform, and filling water into the ballast water tank which is far away from one side of the lower floating body and close to the pump tank on the first upright column on the second platform and ballasting the ballast water tank.

In a preferred embodiment of the present invention, the weight of the grouting cement in the first ballast tank, the weight of the grouting cement in the second ballast tank, the weight of the grouting cement in the third ballast tank, the weight of the grouting cement in the fourth ballast tank, the weight of the grouting cement in the fifth ballast tank, and the weight of the grouting cement in the sixth ballast tank are the same.

In a preferred embodiment of the present invention, the weight of the grouting cement in the seventh ballast tank is the same as the weight of the grouting cement in the eighth ballast tank.

In a preferred embodiment of the present invention, the weight of the grouting cement in the ninth ballast tank, the weight of the grouting cement in the tenth ballast tank, the weight of the grouting cement in the eleventh ballast tank, and the weight of the grouting cement in the twelfth ballast tank are the same.

As a preferable scheme of the present invention, the draught marks are provided with 3 numbers, and are respectively provided on the first upright post, the second upright post and the third upright post.

In the third step, the weight of the grouting cement in each solid ballast tank is controlled by the following process: firstly weighing the concrete tank truck for the first time after the concrete tank truck is filled with materials, marking the weight as the weight of the tank truck entering the field, weighing the concrete tank truck for the second time after the concrete is unloaded by a top pump or a ground pump when the concrete tank truck arrives at the field, marking the weight as the weight of the tank truck leaving the field, and the difference between the weight of the tank truck entering the field and the weight of the tank truck leaving the field is the net weight of the grouting of the truck time; concrete can remain in the pump truck and the pipeline when the top pump or the ground pump is adopted for the first grouting, and the weight of the remaining residual materials is determined according to construction experience; when the weight of grouting cement in the first solid ballast tank is the sum of the net weights of all vehicles for grouting the first solid ballast tank, and then the weight of residual materials left in a pump truck and a pipeline is subtracted; the grouting cement weight of the second solid ballast tank on the same day is the sum of the net weights of all vehicles for grouting the second solid ballast tank; the loading capacity of the last truck of the second solid ballast tank on the day is determined by subtracting the net weight of all the trucks from the total weight of the grouting cement determined by the second solid ballast tank on the day.

Compared with the prior art, the solid ballast method of the floating wind power platform has the following beneficial effects:

the solid ballast method of the floating wind power platform comprises the steps of arranging 12 solid ballast tanks, grouting each solid ballast tank according to the planned grouting sequence and grouting cement weight of each solid ballast tank, simultaneously recording the draught data at the draught mark position after each grouting and the total quantity of grouting cement to obtain the horizontal inclination and the vertical inclination, judging the draught condition of the floating wind power platform under the inclined side according to the horizontal inclination and the vertical inclination after each grouting, and adjusting the total quantity of the current grouting cement if the draught is judged to be more than or equal to 1m; and if the draught is judged to be less than 1m, carrying out next slurry canning until all grouting construction is finished. Therefore, the solid ballast method of the floating wind power platform can accurately control grouting construction quality, ensures the stability of the whole floating wind power platform structure, and effectively improves construction efficiency by filling 12 solid ballast tanks in sequence for six days.

In addition, the solid ballast method of the floating wind power platform belongs to the domestic initiative and opens up the blank of the industry.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

Fig. 1 is a schematic structural diagram of a floating wind power platform provided in an embodiment of the present invention;

FIG. 2 is a view of the cabin layout of the bilge;

FIG. 3 is a view of the cabin layout of the first platform;

FIG. 4 is a view of the cabin layout of the second platform;

FIG. 5 is a view of the cabin layout of the third platform;

FIG. 6 is a view of the cabin layout of a fourth platform;

FIG. 7 is a view of the cabin layout of the fifth platform;

fig. 8 is a view of the cabin layout of the sixth platform.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

As shown in fig. 1 to 8, a preferred embodiment of the present invention provides a solid ballasting method of a floating wind power platform, which includes the steps of:

step one, arranging a solid ballast tank;

the floating wind power platform is in an equilateral triangle layout and comprises a first upright post 1a, a second upright post 1b, a third upright post 1c, a first heave plate 2a, a second heave plate 2b, a third heave plate 2c, a first lower floating body 3a, a second lower floating body 3b, a third lower floating body 3c, a first upper cross brace 4a, a second upper cross brace 4b and a third upper cross brace 4c; first stand 1a is connected perpendicularly on first heave plate 2a, second stand 1b is connected perpendicularly on the second heave plate 2b, third stand 1c is connected perpendicularly on the third heave plate 2c, first body 3a is connected first heave plate 2a and second heave plate 2b between, body 3b is connected under the second between first heave plate 2a and the third heave plate 2c, body 3c is connected under the third between second heave plate 2b and the third heave plate 2c, first last stull 4a is connected between first stand 1a and second stand 1b, stull 4b is connected on the second between first stand 1a and third stand 1c, last stull 4c is connected between second stand 1b and third stand 1 c.

The floating wind power platform is divided into a bilge, a first platform, a second platform, a third platform, a fourth platform, a fifth platform and a sixth platform from bottom to top.

A plurality of cabins are arranged on the bottom of the ballast tank, and are divided into a first solid ballast tank 51, a second solid ballast tank 52, a third solid ballast tank 53, a fourth solid ballast tank 54, a fifth solid ballast tank 55, a sixth solid ballast tank 56, a seventh solid ballast tank 57 and an eighth solid ballast tank 58 according to the functions of the cabins, and the rest cabins are a water ballast tank 6, a pump tank 7 and an empty tank 8 respectively; the central circular area which is coaxial with the upright posts (1 a, 1b and 1 c) and has the same cross-sectional area with the upright posts (1 a, 1b and 1 c) is arranged on each heave plate (2 a, 2b and 2 c), 3 empty chambers 8 and 1 pump chamber 7 which are arranged in four equal parts in a circular shape are arranged in the central circular area, the pump chamber 7 on the first heave plate 2a is close to one side of the first lower floating body 3a, the pump chamber 7 on the second heave plate 2b is close to one side of the first lower floating body 3a, and the pump chamber 7 on the third heave plate 2c is close to one side of the second lower floating body 3 b; the first solid ballast tank 51 and the second solid ballast tank 52 are symmetrically arranged along the center line L1 of the floating wind power platform and are respectively located in an arc area on one side of the first heave plate 2a away from the first lower buoy 3a and the second lower buoy 3 b; the third solid ballast tank 53 and the fourth solid ballast tank 54 are symmetrically arranged along the center line L2 of the floating wind power platform and are respectively located in an arc area on one side of the second heave plate 2b away from the first lower floating body 3a and the third lower floating body 3 c; the fifth solid ballast tank 55 and the sixth solid ballast tank 56 are symmetrically arranged along the center line L3 of the floating wind power platform and are respectively located in an arc area of one side of the third heave plate 2c away from the second lower floating body 3b and the third lower floating body 3 c; the seventh solid ballast tank 57 is disposed in a region outside one end of the first lower floating body 3a close to the second heave plate 2 b; the eighth solid ballast tank 58 is disposed in a region outside one end of the second lower floating body 3b near the third heave plate 2 c.

Each upright post (1 a, 1b and 1 c) on the first platform is provided with four cabins which are divided into 3 ballast water chambers 6 and 1 pump chamber 7 which are arranged in four equal parts in a circular shape according to the function of the cabins; the three ballast water tanks 6 on each upright post (1 a, 1b, 1 c) on the first platform and the three empty tanks 8 on each heave plate (2 a, 2b, 2 c) on the bottom tank are arranged in an up-and-down corresponding manner; the pump chambers 7 on each upright post (1 a, 1b, 1 c) on the first platform and the pump chambers 7 on each heave plate (2 a, 2b, 2 c) on the bottom chamber are correspondingly arranged up and down.

Each upright post (1 a, 1b and 1 c) on the second platform is provided with four cabins which are divided into 3 water ballast tanks 6 and 1 pump tank 7 which are arranged in four equal parts in a circular shape according to the function of the cabins; the three ballast water tanks 6 on each upright post (1 a, 1b, 1 c) on the second platform and the three ballast water tanks 6 on each upright post (1 a, 1b, 1 c) on the first platform are arranged in an up-and-down corresponding manner; the pump chambers 7 of the upright posts (1 a, 1b and 1 c) on the second platform and the pump chambers 7 of the heave plates (2 a, 2b and 2 c) on the first platform are arranged in an up-and-down corresponding mode.

Each upright post (1 a, 1b and 1 c) on the third platform is provided with four cabins; the method specifically comprises the following steps:

the cabins on the first upright posts 1a on the third platform are divided into 3 water ballast tanks 6 and 1 pump tank 7 which are arranged in four equal parts in a circular shape according to the functions of the cabins, the three water ballast tanks 6 on the first upright posts 1a on the third platform are arranged in an up-and-down corresponding manner with the three water ballast tanks 6 on the first upright posts 1a on the second platform, and the pump tanks 7 on the first upright posts 1a on the second platform are arranged in an up-and-down corresponding manner with the pump tanks 7 on the first upright posts 1a on the second platform;

the cabin of the second upright post 1b on the third platform is divided into 1 ballast water cabin 6, 1 pump cabin 7 and 2 solid ballast tanks which are arranged in four equal parts in a circular shape according to the function of the cabin; the 2 solid ballast tanks are ninth and tenth

solid ballast tanks

59 and 510, respectively; the two solid ballast tanks (namely a ninth solid ballast tank 59 and a tenth solid ballast tank 510) on the second upright post 1b on the third platform are arranged corresponding to the two ballast water tanks 6 on the side of the second upright post 1b on the second platform far away from the lower floating body up and down; the ballast water tank 6 and the pump tank 7 on the second upright post 1b on the third platform are vertically and correspondingly arranged with the ballast water tank 6 and the pump tank 7 on one side of the second upright post 1b on the second platform, which is close to the lower floating body;

the cabin of the third upright column 1c on the third platform is divided into 1 ballast water cabin 6, 1 pump cabin 7 and 2 solid ballast tanks which are arranged in four equal parts in a circular shape according to the function of the cabin; the 2 solid ballast tanks are an eleventh solid ballast tank 511 and a twelfth solid ballast tank 512 respectively, and two solid ballast tanks (namely, the eleventh solid ballast tank 511 and the twelfth solid ballast tank 512) on the third upright column 1c on the third platform and two water ballast tanks 6 on one side of the third upright column 1c on the second platform, which is far away from the lower floating body, are arranged in an up-and-down corresponding manner; the ballast water tank 6 and the pump tank 7 on the third upright post 1c on the third platform are vertically and correspondingly arranged with the ballast water tank 6 and the pump tank 7 on one side of the third upright post 1c on the second platform, which is close to the lower floating body.

Each upright post (1 a, 1b and 1 c) on the fourth platform is provided with four cabins; the method specifically comprises the following steps:

the cabin on the first upright post 1a on the fourth platform is divided into 2 ballast water tanks 6 and 2 pump tanks 7 which are arranged in four equal parts in a circular shape according to the function of the cabin; the two ballast water tanks 6 on the first upright post 1a on the fourth platform and the two ballast water tanks 6 on the first upright post 1a on the third platform, which are far away from one side of the lower floating body, are arranged in an up-and-down corresponding manner; two pump chambers 7 on the first upright post 1a on the fourth platform are vertically and correspondingly arranged with a water ballast tank 6 and a pump chamber 7 on one side of the first upright post 1a on the third platform, which is close to the lower floating body;

the cabin on the second upright post 1b on the fourth platform is divided into 2 ballast water tanks 6 and 2 pump tanks 7 which are arranged in four equal parts in a circular shape according to the function of the cabin; two ballast water tanks 6 on the second upright post 1b on the fourth platform and two ballast water tanks 6 on the second upright post 1b on the third platform, which are far away from one side of the lower floating body, are arranged in an up-and-down corresponding manner; two pump chambers 7 on the second upright post 1b on the fourth platform are arranged up and down correspondingly with the ballast water chamber 6 and the pump chamber 7 on one side, close to the lower floating body, of the second upright post 1b on the third platform;

the cabin on the third upright post 1c on the fourth platform is divided into 2 ballast water tanks 6 and 2 pump tanks 7 which are arranged in four equal parts in a circular shape according to the function of the cabin; the two ballast water tanks 6 on the third upright post 1c on the fourth platform and the two ballast water tanks 6 on the side, far away from the lower floating body, of the third upright post 1c on the third platform are arranged in an up-and-down corresponding manner; and the two pump chambers 7 on the third upright post 1c on the fourth platform and the water ballast tanks 6 and the pump chambers 7 on one side, close to the lower floating body, of the third upright post 1c on the third platform are arranged in an up-and-down corresponding manner.

Each upright post (1 a, 1b and 1 c) on the fifth platform is provided with four cabins which are divided into 3 ballast water tanks 6 and 1 pump tank 7 which are arranged in four equal parts in a circular shape according to the function of the cabins; the two ballast water tanks 6 on each upright post (1 a, 1b, 1 c) on the fifth platform and the ballast water tanks 6 on each upright post (1 a, 1b, 1 c) on the fourth platform are arranged in an up-down corresponding manner; the last ballast water tank 6 and the pump tank 7 on each upright post (1 a, 1b, 1 c) on the fourth platform are arranged up and down correspondingly with the two pump tanks 7 on each upright post (1 a, 1b, 1 c) on the fourth platform; wherein, the pump cabin 7 on the first upright post 1a on the fourth platform is close to one side of the second lower floating body 3 b; a pump cabin 7 on a second upright post 1b on the fourth platform is close to one side of a third lower floating body 3 c; and a pump cabin 7 on a third upright post 1c on the fourth platform is close to one side of the third lower floating body 3 c.

Each upright post (1 a, 1b and 1 c) on the sixth platform is provided with four cabins which are divided into 1 water ballast tank 6, 2 empty tanks 8 and 1 pump tank 7 which are arranged in four equal parts in a circular shape according to the function of the cabins; the ballast water tanks 6 and the empty tank 8 on each upright post (1 a, 1b, 1 c) on the sixth platform are arranged up and down correspondingly with the two ballast water tanks 6 on one side of each upright post (1 a, 1b, 1 c) on the fifth platform, which is far away from the lower floating body; the pump cabins 7 on each upright post (1 a, 1b, 1 c) on the sixth platform and the pump cabins 7 on each upright post (1 a, 1b, 1 c) on the fifth platform are arranged in an up-and-down corresponding mode.

And step two, determining the initial state before grouting according to draft data of the draft mark position before grouting provided on site. In this embodiment, in order to better observe the draught condition of the whole floating wind power platform, the draught marks are provided with 3 and respectively arranged on the first upright column 1a, the second upright column 1b and the third upright column 1 c.

And step three, grouting each solid ballast tank according to the planned grouting sequence and the grouting cement weight of each solid ballast tank. In this embodiment, in order to better plan and control the grouting cement weight of each fixed ballast tank, the grouting cement weight of the first solid ballast tank 51, the grouting cement weight of the second solid ballast tank 52, the grouting cement weight of the third solid ballast tank 53, the grouting cement weight of the fourth solid ballast tank 54, the grouting cement weight of the fifth solid ballast tank 55 and the grouting cement weight of the sixth solid ballast tank 56 are the same; the grouted cement weight of the seventh solid ballast tank 57 is the same as the grouted cement weight of the eighth solid ballast tank 58; the grouted cement weight of the ninth solid ballast tank 59, the grouted cement weight of the tenth solid ballast tank 510, the grouted cement weight of the eleventh solid ballast tank 511 and the grouted cement weight of the twelfth solid ballast tank 512 are the same. The third step comprises the following specific steps:

step 3.1, filling the seventh solid ballast tank 57 and the eighth solid ballast tank 58 the first day;

step 3.2, filling the third solid ballast tank 53 and the fifth solid ballast tank 55 the next day;

step 3.3, filling said first solid ballast tank 51 and said sixth solid ballast tank 56 on the third day;

step 3.4, filling the second solids ballast tank 52 and the fourth solids ballast tank 54 on the fourth day;

step 3.5, filling said ninth solid ballast tank 59 and said eleventh solid ballast tank 511 on the fifth day;

step 3.6, filling the tenth solid ballast tank 510 and the twelfth solid ballast tank 512 on day six;

Therefore, according to the solid ballast method of the floating wind power platform, 12 solid ballast tanks are arranged, grouting is carried out on each solid ballast tank according to the planned grouting sequence and the grouting cement weight of each solid ballast tank, the draft data of the draft mark position and the total amount of grouting cement after each grouting are recorded at the same time, the horizontal inclination and the vertical inclination are obtained, the draft condition of the floating wind power platform in the inclined side is judged according to the horizontal inclination and the vertical inclination after each grouting, and if the draft is judged to be more than or equal to 1m, the total amount of the current grouting cement is adjusted; and if the draught is judged to be less than 1m, carrying out next slurry canning until all grouting construction is finished. Therefore, the solid ballast method of the floating wind power platform can accurately control grouting construction quality, ensures the stability of the whole floating wind power platform structure, and effectively improves construction efficiency by filling 12 solid ballast tanks in sequence for six days.

It should be noted that the solid ballast method of the floating wind power platform in the embodiment of the invention belongs to the domestic initiative and fills the blank of the industry.

Illustratively, while the ninth solid ballast tank 59 is being grouted, the ballast water tanks 6 on the first columns 1a on the first platform, which are on the side away from the lower hull and not adjacent to the pump tanks 7, and the ballast water tanks 6 on the first columns 1a on the second platform, which are on the side away from the lower hull and not adjacent to the pump tanks 7, are ballasted by filling with water; while the eleventh solid ballast tank 511 is being filled, the ballast water tank 6 on the first column 1a on the first platform, which is on the side away from the lower float and is adjacent to the pump tank 7, and the ballast water tank 6 on the first column 1a on the second platform, which is on the side away from the lower float and is adjacent to the pump tank 7, are filled with water and ballasted. Due to the design, the draught of pitching and transversely inclining in the grouting process can be reduced as much as possible, and the gravity center of the floating wind power platform is prevented from being shifted too much.

Illustratively, to better control the grouting cement weight of each of the fixed ballast tanks, the grouting cement weight of the first solid ballast tank 51, the grouting cement weight of the second solid ballast tank 52, the grouting cement weight of the third solid ballast tank 53, the grouting cement weight of the fourth solid ballast tank 54, the grouting cement weight of the fifth solid ballast tank 55 and the grouting cement weight of the sixth solid ballast tank 56 are the same; the weight of the grouted cement in the seventh ballast solid tank 57 is the same as the weight of the grouted cement in the eighth ballast solid tank 58; the weight of the grouted cement in the ninth solid ballast tank 59, the weight of the grouted cement in the tenth solid ballast tank 510, the weight of the grouted cement in the eleventh solid ballast tank 511, and the weight of the grouted cement in the twelfth solid ballast tank 512 are the same.

Illustratively, in the third step, the grouting cement weight of each solid ballast tank is controlled by the following process: firstly weighing the concrete tank truck for the first time after the concrete tank truck is filled with materials, marking the weight as the weight of the tank truck entering the field, weighing the concrete tank truck for the second time after the concrete is unloaded by a top pump or a ground pump when the concrete tank truck arrives at the field, marking the weight as the weight of the tank truck leaving the field, and the difference between the weight of the tank truck entering the field and the weight of the tank truck leaving the field is the net weight of the grouting of the truck time; concrete can remain in the pump truck and the pipeline when a top pump or a ground pump is adopted for primary grouting, and the weight of the remaining residual materials is determined according to construction experience; when the weight of grouting cement in the first solid ballast tank is the sum of the net weights of all vehicles for grouting the first solid ballast tank, and then the weight of residual materials left in a pump truck and a pipeline is subtracted; the grouting cement weight of the second solid ballast tank on the same day is the sum of the net weights of all vehicles for grouting the second solid ballast tank; the loading number of the concrete tank truck is calculated by the total weight of the grouting cement planned for each solid ballast tank, the loading capacity of the last truck of the first solid ballast tank on the day is determined by subtracting the sum of the net weights of all the trucks from the total weight of the grouting cement planned for the first solid ballast tank, and adding the weight of the residual materials remained in the pump truck and the pipeline, and the loading capacity of the last truck of the second solid ballast tank on the day is determined by subtracting the sum of the net weights of all the trucks from the total weight of the grouting cement planned for the second solid ballast tank. By the design, the grouting cement weight of each solid ballast tank can be ensured to be close to the target required weight (namely the planned weight) as much as possible, the grouting weight error is controlled, the deviation amount can be determined, and the product quality control support is effectively provided. In addition, the weight deviation of the solid ballast tank can be adjusted by the next solid ballast tank, grouting control is flexible, and overall controllability is realized.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A solid ballast method of a floating wind power platform is characterized by comprising the following steps:

a plurality of cabins are arranged on the bottom of the cabin, and are divided into a first solid ballast tank, a second solid ballast tank, a third solid ballast tank, a fourth solid ballast tank, a fifth solid ballast tank, a sixth solid ballast tank, a seventh solid ballast tank and an eighth solid ballast tank according to the functions of the cabins, and the rest cabins are a water ballast tank, a pump tank and an empty tank respectively; each heave plate is provided with a central circular area which is coaxial with the upright post and has the same cross section area with the upright post, the central circular area is internally provided with 3 empty chambers and 1 pump chamber which are arranged in four equal parts in a circular shape, the pump chamber on the first heave plate is close to one side of the first lower floating body, the pump chamber on the second heave plate is close to one side of the first lower floating body, and the pump chamber on the third heave plate is close to one side of the second lower floating body; the first solid ballast tank and the second solid ballast tank are symmetrically arranged along a center line L1 of the floating wind power platform and are respectively positioned in an arc area at one side of the first heave plate, which is far away from the first lower floating body and the second lower floating body; the third solid ballast tank and the fourth solid ballast tank are symmetrically arranged along the central line L2 of the floating wind power platform and are respectively positioned in an arc area at one side of the second heave plate, which is far away from the first lower floating body and the third lower floating body; the fifth solid ballast tank and the sixth solid ballast tank are symmetrically arranged along the central line L3 of the floating wind power platform and are respectively positioned in an arc area at one side of the third heaving plate, which is far away from the second lower floating body and the third lower floating body; the seventh solid ballast tank is disposed in an area outside of one end of the first lower hull proximate the second heave plate; the eighth solid ballast tank is disposed in an area outside an end of the second lower float proximate to the third heave plate;

each upright column on the first platform is provided with four cabins which are divided into 3 ballast water chambers and 1 pump chamber which are arranged in four equal parts in a circular shape according to the functions of the cabins; three water ballast tanks on each upright post on the first platform and three empty tanks on each heave plate on the bottom tank are arranged up and down correspondingly; the pump chambers on each upright post on the first platform and the pump chambers of each heave plate on the bottom chamber are arranged in an up-and-down corresponding manner;

each upright column on the second platform is provided with four cabins which are divided into 3 ballast water chambers and 1 pump chamber which are arranged in four equal parts in a circular shape according to the functions of the cabins; the three ballast water tanks on each upright column on the second platform and the three ballast water tanks on each upright column on the first platform are arranged in an up-and-down corresponding manner; the pump chambers on each upright post on the second platform and the pump chambers of each heave plate on the first platform are arranged in an up-and-down corresponding manner;

the cabins of the second upright columns on the third platform are divided into 1 ballast water cabin, 1 pump cabin and 2 solid ballast tanks which are arranged in four equal parts in a circular shape according to the functions of the cabins; the 2 solid ballast tanks are respectively a ninth solid ballast tank and a tenth solid ballast tank; two solid ballast tanks on the second upright column on the third platform and two ballast water tanks on one side, far away from the lower floating body, of the second upright column on the second platform are arranged in an up-and-down corresponding mode; the ballast water tank and the pump chamber on the second upright post on the third platform are vertically and correspondingly arranged with the ballast water tank and the pump chamber on one side of the second upright post on the second platform close to the lower floating body;

the cabin of the third upright column on the third platform is divided into 1 water ballast tank, 1 pump tank and 2 solid ballast tanks which are arranged in four equal parts in a circular shape according to the function of the cabin; the 2 solid ballast tanks are an eleventh solid ballast tank and a twelfth solid ballast tank respectively, and the two solid ballast tanks on the third upright post on the third platform and the two ballast water tanks on the third upright post on the second platform, which are far away from one side of the lower floating body, are arranged in a vertically corresponding manner; the ballast water tank and the pump chamber on the third upright post on the third platform are vertically and correspondingly arranged with the ballast water tank and the pump chamber on one side of the third upright post on the second platform, which is close to the lower floating body;

the cabin on the first upright column on the fourth platform is divided into 2 ballast water tanks and 2 pump tanks which are arranged in four equal parts in a circular shape according to the function of the cabin; the two ballast water tanks on the first upright post on the fourth platform and the two ballast water tanks on one side, far away from the lower floating body, of the first upright post on the third platform are arranged in an up-and-down corresponding manner; two pump chambers on the first upright post on the fourth platform are vertically and correspondingly arranged with the ballast water chamber and the pump chamber on one side, close to the lower floating body, of the first upright post on the third platform;

the cabin on the second upright column on the fourth platform is divided into 2 ballast water cabins and 2 pump cabins which are arranged in four equal parts in a circular shape according to the functions of the cabin; two ballast water tanks on the second upright post on the fourth platform and two ballast water tanks on one side, far away from the lower floating body, of the second upright post on the third platform are arranged in an up-and-down corresponding mode; two pump chambers on the second upright post on the fourth platform are vertically and correspondingly arranged with the ballast water chamber and the pump chamber on one side, close to the lower floating body, of the second upright post on the third platform;

the cabin on the third upright column on the fourth platform is divided into 2 ballast water cabins and 2 pump cabins which are arranged in four equal parts in a circular shape according to the functions of the cabin; two ballast water tanks on a third upright column on the fourth platform and two ballast water tanks on one side, far away from the lower floating body, of the third upright column on the third platform are arranged in an up-and-down corresponding mode; two pump chambers on a third upright post on the fourth platform and a ballast water chamber and a pump chamber on one side, close to the lower floating body, of the third upright post on the third platform are arranged in an up-and-down corresponding mode;

each upright column on the fifth platform is provided with four cabins which are divided into 3 ballast water chambers and 1 pump chamber which are arranged in four equal parts in a circular shape according to the functions of the cabins; the two ballast water tanks on each upright column on the fifth platform and the two ballast water tanks on each upright column on the fourth platform are arranged in an up-and-down corresponding manner; the last ballast water tank and the pump tank on each upright column on the fourth platform are vertically and correspondingly arranged with the two pump tanks on each upright column on the fourth platform; the pump cabin on the first upright column on the fourth platform is close to one side of the second lower floating body; a pump cabin on a second upright column on the fourth platform is close to one side of the third lower floating body; a pump cabin on a third upright column on the fourth platform is close to one side of the third lower floating body;

each upright column on the sixth platform is provided with four cabins which are divided into 1 water ballast tank, 2 empty tanks and 1 pump tank which are arranged in four equal parts in a circular shape according to the function of the cabin; the ballast water tanks and the empty tank on each upright column on the sixth platform are vertically and correspondingly arranged with the two ballast water tanks on one side, far away from the lower floating body, of each upright column on the fifth platform; the pump cabins on each upright column on the sixth platform and the pump cabins on each upright column on the fifth platform are arranged in an up-down corresponding manner;

2. The solid ballast method of the floating wind power platform according to claim 2, wherein the ninth solid ballast tank is grouted while a ballast water tank which is on the side of the first column on the first platform far away from the lower floating body and is not close to the pump tank and a ballast water tank which is on the side of the first column on the second platform far away from the lower floating body and is not close to the pump tank are filled with water and ballasted; and when the eleventh solid ballast tank is grouted, filling water into the ballast water tank which is far away from one side of the lower floating body and close to the pump tank on the first upright column on the first platform, and filling water into the ballast water tank which is far away from one side of the lower floating body and close to the pump tank on the first upright column on the second platform and ballasting the ballast water tank.

3. The method for solids ballasting of a floating wind power platform according to claim 1, wherein the grouted cementitious weight of the first solids ballast tank, the grouted cementitious weight of the second solids ballast tank, the grouted cementitious weight of the third solids ballast tank, the grouted cementitious weight of the fourth solids ballast tank, the grouted cementitious weight of the fifth solids ballast tank, and the grouted cementitious weight of the sixth solids ballast tank are the same.

4. The method of solids ballasting of a floating wind power platform of claim 1, wherein the weight of the grouted cement of the seventh solids ballast tank is the same as the weight of the grouted cement of the eighth solids ballast tank.

5. The method for ballasting solids for a floating wind power platform according to claim 1, wherein the weight of the grout in the ninth solids ballast tank, the weight of the grout in the tenth solids ballast tank, the weight of the grout in the eleventh solids ballast tank and the weight of the grout in the twelfth solids ballast tank are the same.

6. The solid ballasting method of the floating wind power platform according to claim 1, wherein the draft marks are provided in 3 numbers and are respectively provided on the first column, the second column and the third column.

7. The method for ballasting solids for a floating wind power platform according to claim 1, wherein in step three, the weight of the grouting cement in each solid ballast tank is controlled by the following process: firstly weighing the concrete tank truck for the first time after the concrete tank truck is filled with materials, marking the weight as the weight of the tank truck entering the field, weighing the concrete tank truck for the second time after the concrete is unloaded by a top pump or a ground pump when the concrete tank truck arrives at the field, marking the weight as the weight of the tank truck leaving the field, and the difference between the weight of the tank truck entering the field and the weight of the tank truck leaving the field is the net weight of the grouting of the truck time; concrete can remain in the pump truck and the pipeline when a top pump or a ground pump is adopted for primary grouting, and the weight of the remaining residual materials is determined according to construction experience; the weight of grouting cement in the first solid ballast tank on the day is the sum of the net weights of all vehicles for grouting the first solid ballast tank, and then the weight of residual materials remained in the pump truck and the pipeline is subtracted; the grouting cement weight of the second solid ballast tank on the same day is the sum of the net weights of all vehicles for grouting the second solid ballast tank; the loading capacity of the last truck of the second solid ballast tank on the day is determined by subtracting the net weight of all the trucks from the total weight of the grouting cement determined by the second solid ballast tank on the day.