阅读说明：本技术 一种海上风电单桩靠泊构件连接结构及其施工方法 (Offshore wind power single-pile mooring component connecting structure and construction method thereof ) 是由 宋启明 刘蔚 游先辉 赖福梁 陈志冰 吴昀 欧寅华 于 2020-06-02 设计创作，主要内容包括：本发明涉及一种海上风电设备技术领域,特别涉及一种海上风电单桩靠泊构件连接结构及其施工方法；靠泊构件本体采用分体式,通过在单桩基础本体的侧部连接一个以上的支撑结构,支撑结构的宽度从上至下逐渐增大,并在分体式靠泊构件本体的侧部设置与支撑结构一一对应的套筒,使得套筒从上而下与对应的支撑结构套接时,通过靠泊构件本体本身的重力使套筒的内壁与支撑结构的外壁紧密地过渡配合连接,施工效率高,安装方便,解决了常规分体式靠泊构件安装繁琐,连接存在一定空隙的问题,且连接结构稳定,不会晃动,具有优良的承载能力,且用钢量少。(The invention relates to the technical field of offshore wind power equipment, in particular to an offshore wind power single-pile mooring member connecting structure and a construction method thereof; the berthing component body adopts split type, more than one bearing structure is connected through the lateral part at single pile basis body, bearing structure's width is from last to crescent down, and the lateral part at split type berthing component body sets up the sleeve with the bearing structure one-to-one, when making sleeve from the top cup joint with the bearing structure who corresponds, gravity through berthing component body itself makes telescopic inner wall and bearing structure's outer wall closely transition fit be connected, the efficiency of construction is high, high durability and convenient installation, it is loaded down with trivial details to have solved the installation of conventional split type berthing component, connect the problem that has certain space, and connection structure is stable, can not rock, has good bearing capacity, and it is few with the steel volume.)

1. The offshore wind power single-pile mooring component connecting structure is characterized by comprising a single-pile foundation body and a split type mooring component body, wherein more than one supporting structure is arranged on the side part of the single-pile foundation body, and the width of the supporting structure is gradually increased from top to bottom; the side part of the split type berthing component body is connected with sleeves which correspond to the supporting structures one by one, and the inner walls of the sleeves are in transition fit with the outer walls of the supporting structures.

2. The offshore wind power single-pile mooring element connection structure of claim 1, wherein the support structure is shaped as a truncated cone, the axis of which is parallel to the axis of the single-pile foundation body.

3. Offshore wind power mono-pile mooring element connection according to claim 1, wherein the support structure is cone shaped with its axis parallel to the axis of the mono-pile foundation body.

4. Offshore wind power mono-pile mooring element connection structure according to claim 1, characterized in that the support structure is shaped as a regular polygonal pyramid with an axis parallel to the axis of the mono-pile pointing body.

5. An offshore wind power mono-pile mooring element connection structure according to claim 1, wherein the support structure is shaped as a regular polygon frustum with an axis parallel to the axis of the mono-pile pointing body.

6. The offshore wind power single-pile mooring member connection structure of claim 1, wherein the support structure is made of steel or UHPC, and the sleeve is made of steel or UHPC.

7. The offshore wind power single-pile mooring component connecting structure according to claim 1, wherein the number of the supporting structures is more than 2, the supporting structures with more than 2 are distributed up and down, and bolt holes are formed in the side portions of the supporting structures located at the uppermost position, so that after the supporting structures located at the uppermost position are in transition fit with the corresponding sleeves, the axial movement of the sleeves is limited through threaded connection of the bolts and the bolt holes.

8. The construction method of the offshore wind power single-pile mooring element connection structure of any one of claims 1 to 7, comprising the steps of:

step 1: manufacturing a single-pile foundation body and more than one supporting structure connected with the single-pile foundation body, manufacturing a split type berthing component body and more than one sleeve connected with the split type berthing component body, and drilling a bolt hole on the side part of the supporting structure positioned at the top;

step 2: carrying out pile sinking construction on the single-pile foundation body in a specific sea area;

and step 3: hoisting the split type berthing member body, aligning the sleeve connected with the split type berthing member body to the corresponding support structure, and sleeving the sleeve with the support structure from top to bottom to enable the sleeve to be in transition fit with the corresponding support structure;

and 4, step 4: and connecting the bolt with a bolt hole arranged on the side part of the uppermost supporting structure in a threaded manner, and limiting the axial displacement of the sleeve correspondingly connected.

Technical Field

The invention relates to the technical field of offshore wind power equipment, in particular to an offshore wind power single-pile mooring member connecting structure and a construction method thereof.

Background

In recent years, the offshore wind power industry has come to the best opportunity, the spanning development is realized, and the corresponding wind turbine supporting base structure technology is also greatly improved.

Common offshore wind power foundation types can be divided into gravity foundations, single-pile foundations, multi-column foundations, suction foundations and the like. The single-pile foundation generally refers to a single steel pipe pile foundation, the stress analysis is clear, the structural style is simple, the construction speed is high, the economy is good, and the embedding depth is determined by the water depth and the geological conditions. The single-pile foundation is already applied to a water depth sea area of 0-40 m, and the single-machine capacity of the wind generating set is up to 8MW and above. According to statistics, more than 75% of the current global offshore wind turbine foundations all adopt single-pile foundation types.

The berth of present single pile basis divide into whole cover cage formula and split type, and whole cover cage type will lean on peripheral accessory component integration such as berth structure, outer platform, cable duct a whole, and convenient construction, the installation effectiveness is high, and whole bearing capacity is good simultaneously, is the most common type in China, nevertheless along with the increase of depth of water, the shortcoming of whole cover cage type just sends out obviously more, at first with the steel volume big, welding processes are many, the manufacturing is troublesome, whole height is high simultaneously, construction hoist and mount are inconvenient, and overall cost is big. Therefore, in the sea area with deeper water depth, the split type accessory component comprises the mooring structure, but the conventional split type mooring structure generally has the problems that the lower connecting points are generally inserted in a cylindrical sleeve mode, the uppermost end of the split type mooring structure is connected with a flange, a certain gap exists in the insertion of the lower cylindrical sleeve, the split type mooring structure is not favorable for stress, and the flange connection at the upper end sometimes has difficulty in installation due to errors in processing and manufacturing.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the connecting structure of the offshore wind power single-pile mooring component and the construction method thereof are provided, so that the mooring component has better bearing performance, less steel consumption and more convenient and faster installation compared with the traditional integral sleeve type and the conventional split type.

In order to solve the technical problems, the invention adopts the technical scheme that:

the offshore wind power single-pile mooring component connecting structure comprises a single-pile foundation body and a split type mooring component body, wherein more than one supporting structure is installed on the side part of the single-pile foundation body, and the width of the supporting structure is gradually increased from top to bottom; the side part of the split type berthing component body is connected with sleeves which correspond to the supporting structures one by one, and the inner walls of the sleeves are in transition fit with the outer walls of the supporting structures.

The invention also relates to a construction method of the offshore wind power single-pile mooring component connecting structure, which comprises the following steps:

step 1: manufacturing a single-pile foundation body and more than one supporting structure connected with the single-pile foundation body, manufacturing a split type berthing component body and more than one sleeve connected with the split type berthing component body, and drilling a bolt hole on the side part of the supporting structure positioned at the top;

step 2: carrying out pile sinking construction on the single-pile foundation body in a specific sea area;

and step 3: hoisting the split type berthing member body, aligning the sleeve connected with the split type berthing member body to the corresponding support structure, and sleeving the sleeve with the support structure from top to bottom to enable the sleeve to be in transition fit with the corresponding support structure;

and 4, step 4: and connecting the bolt with a bolt hole arranged on the side part of the uppermost supporting structure in a threaded manner, and limiting the axial displacement of the sleeve correspondingly connected.

The invention has the beneficial effects that: in the offshore wind power single-pile mooring component connecting structure provided by the invention, the mooring component body is split, more than one supporting structure is connected to the side part of the single-pile foundation body, the width of the supporting structure is gradually increased from top to bottom, and the sleeves corresponding to the supporting structures one by one are arranged on the side part of the split mooring component body, so that when the sleeves are sleeved with the corresponding supporting structures from top to bottom, the inner walls of the sleeves and the outer walls of the supporting structures are in tight transition fit connection through the gravity of the mooring component body, the construction efficiency is high, the installation is convenient, the problems that the conventional split mooring component is complex in installation and has a certain gap in connection are solved, the connecting structure is stable and cannot shake, the offshore wind power single-pile mooring component connecting structure has excellent bearing capacity, and the steel consumption is low.

Drawings

Fig. 1 is a schematic structural view of a single-pile foundation body and a split type mooring member body of an offshore wind power single-pile mooring member connection structure according to embodiment 6 of the present invention in a separated state;

fig. 2 is a schematic structural view of a connecting structure of a single-pile foundation body and a split type mooring member body of an offshore wind power single-pile mooring member connection structure according to embodiment 6 of the present invention;

description of reference numerals:

1. a single pile foundation body; 2. a support structure; 3. a split mooring component body; 4. a sleeve; 5. bolt holes.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

The most key concept of the invention is as follows: the lateral part of single pile basis body connects more than one bearing structure, and bearing structure's width is from last to crescent to set up the sleeve with the bearing structure one-to-one at the lateral part of split type mooring component body, when making the sleeve cup joint with the bearing structure who corresponds from the top down, make telescopic inner wall and bearing structure's outer wall closely transition fit be connected through the gravity of mooring component body itself.

Referring to fig. 1 and 2, the invention relates to an offshore wind power single-pile mooring member connecting structure, which comprises a single-pile foundation body 1 and a split type mooring member body 3, wherein more than one supporting structure 2 is installed on the side part of the single-pile foundation body 1, and the width of the supporting structure 2 is gradually increased from top to bottom; the side part of the split type berthing component body 3 is connected with a sleeve 4 which is in one-to-one correspondence with the position of the supporting structure 2, and the inner wall of the sleeve 4 is in transition fit with the outer wall of the supporting structure 2.

Among the above-mentioned marine wind power single pile mooring component connection structure, mooring component body adopts split type, through the lateral part at single pile foundation body 1 connect more than one bearing structure 2, bearing structure 2's width is from last to crescent down, and the lateral part at split type mooring component body 3 sets up the sleeve 4 with bearing structure 2 one-to-one, when making sleeve 4 cup joint with corresponding bearing structure 2 from the top down, make the inner wall of sleeve 4 and bearing structure 2's outer wall closely transition fit be connected through the gravity of mooring component body itself, the efficiency of construction is high, high durability and convenient installation, it is loaded down with trivial details to have solved conventional split type mooring component installation, connect the problem that has certain space, and connection structure is stable, can not rock, have good bearing capacity, and use the steel volume few.

Further, in the offshore wind power single-pile mooring component connecting structure, the supporting structure 2 is in the shape of a circular truncated cone, and the axis of the circular truncated cone is parallel to the axis of the single-pile foundation body 1.

Further, in the offshore wind power single-pile mooring component connecting structure, the supporting structure 2 is in the shape of a cone, and the axis of the cone is parallel to the axis of the single-pile foundation body 1.

Further, in the offshore wind power single-pile mooring component connecting structure, the supporting structure 2 is in the shape of a regular polygonal pyramid, and the axis of the regular polygonal pyramid is parallel to the axis of the single-pile pointed body.

Further, in the offshore wind power single-pile mooring component connecting structure, the supporting structure 2 is in the shape of a regular polygon terrace, and the axis of the regular polygon terrace is parallel to the axis of the single-pile pointed body.

Further, in the connection structure of the offshore wind power single-pile mooring component, the support structure 2 is made of steel or UHPC, and the sleeve 4 is made of steel or UHPC.

As can be seen from the above description, the support structure 2 and the sleeve 4 can be made of steel, UHPC or a composite structure of steel and UHPC.

Further, among the above-mentioned marine wind power single pile mooring component connection structure, the quantity of bearing structure 2 is more than 2, and bearing structure 2 more than 2 is upper and lower distribution, and the lateral part that is located the bearing structure 2 of the top is equipped with bolt hole 5 for after being located the bearing structure 2 of the top and the sleeve 4 transition fit that corresponds, through the axial displacement of bolt and 5 threaded connection restriction sleeves 4 of bolt hole.

A construction method of an offshore wind power single-pile mooring member connecting structure comprises the following steps:

step 1: manufacturing a single-pile foundation body 1 and more than one supporting structure 2 connected to the single-pile foundation body 1, manufacturing a split type berthing component body 3 and more than one sleeve 4 connected to the split type berthing component body 3, and drilling a bolt hole 5 on the side part of the uppermost supporting structure 2;

step 2: carrying out pile sinking construction on the single-pile foundation body 1 in a specific sea area;

and step 3: hoisting the split type berthing member body 3, aligning the sleeve 4 connected with the split type berthing member body 3 with the corresponding support structure 2, and sleeving the sleeve 4 with the support structure 2 from top to bottom to enable the sleeve 4 to be in transition fit with the corresponding support structure 2;

and 4, step 4: the bolt is screwed into a bolt hole 5 provided in the side of the uppermost support structure 2, and the axial displacement of the sleeve 4 connected thereto is restricted.