CN112064666B

CN112064666B - Culture net cage structure based on offshore wind power multi-pile foundation and construction method

Info

Publication number: CN112064666B
Application number: CN202010960818.3A
Authority: CN
Inventors: 朱嵘华; 涂智圣; 刘寒秋; 王恒丰; 孙香; 徐清富; 陈佩玲; 周婷
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2022-06-03
Anticipated expiration: 2040-09-14
Also published as: CN112064666A

Abstract

The invention belongs to the field of offshore wind power engineering, and particularly relates to an aquaculture net cage structure based on offshore wind power multi-pile foundation and a construction method thereof. The invention has the beneficial effects that: the sleeve component is fixed without underwater construction, so that the construction difficulty is further reduced; the wind turbine foundation is used for fixing the net cage, so that the cost of the net cage anchoring system is reduced; the fan utilizes resources above sea level, and the net cage utilizes resources below sea level, so that three-dimensional development of ocean resources is realized.

Description

Aquaculture net cage structure based on offshore wind power multi-pile foundation and construction method

Technical Field

The invention belongs to the field of offshore wind power engineering, and particularly relates to a culture net cage structure based on offshore wind power multi-pile foundations and a construction method.

Background

Offshore wind power, as a renewable energy source, has developed very rapidly in recent years. Wherein, the high pile cap is applied in many places of China. High pile cap foundation structure includes the concrete cap that is higher than the sea level and a set of steel-pipe pile of cap bottom, and the steel-pipe pile lower extreme slightly leans out, squeezes into the seabed, plays main supporting role, and concrete cap upper portion passes through flange joint with wind power tower section of thick bamboo to form whole with the fan with the basis.

For the net cage culture of marine fishery in China, the net cage culture starts from the end of the last 70 th century, is developed relatively quickly after the end of the last 90 th century, and the culture types are increased day by day. However, the marine environment is severe and the extreme climate is frequent, which is a great challenge to the material, structure, wind wave resistance and anchoring system of the net cage, so that the current seawater net cage in China can only be cultivated in some inner bays or near banks with smaller wind waves.

At present, offshore wind power is concentrated in offshore areas, conflicts exist between the offshore wind power and the sea for marine culture, and people think of combining the foundation of the offshore wind power high pile cap with the net cage culture of the marine fishery on the basis of the conflict, so that the resource advantages of the offshore wind power plant are fully utilized. The existing aquaculture net cage based on the offshore wind power multi-pile foundation is usually formed by additionally arranging the aquaculture net cage on the basis of a bearing platform and a pile foundation under the condition that the bearing platform is built, but the offshore wind power multi-pile foundation and the aquaculture net cage are constructed simultaneously, particularly whether a better and faster method is used for building the aquaculture net cage under the condition that the foundation pile is built and the bearing platform is not built is provided, and in this respect, the prior art does not provide a corresponding scheme.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides a culture net cage structure based on offshore wind power multi-pile foundations and a construction method technical scheme.

A aquaculture net case structure based on many piles of offshore wind power basis, include the pile foundation and enclose the box with a net of establishing around the pile foundation, the pile foundation includes the spud leg that a plurality of rings were established, the box with a net includes a plurality of etting of installing between adjacent spud leg, its characterized in that the etting passes through sleeve component cooperation installation with the spud leg, the outer ring beam of spud leg is located to sleeve component including a plurality of covers, a plurality of ring beams are in the same place through an at least stand fixed connection, fixed coordination dead lever on the stand, the anchor chain ring and the stand cooperation installation of etting, the edge and the dead lever cooperation of etting are connected.

The aquaculture net cage structure based on the offshore wind power multi-pile foundation is characterized in that the ring beams are fixedly connected together through 2-4 upright posts.

The aquaculture net cage structure based on the offshore wind power multi-pile foundation is characterized in that a plurality of fixing blocks are fixedly matched between the fixing rods and the stand columns, so that gaps for bundling up edges of netting are formed between the fixing rods and the stand columns.

The aquaculture net cage structure based on the offshore wind power multi-pile foundation is characterized in that a plurality of mounting seats are fixedly matched on the stand columns, and the mounting seats and anchor chain rings of the netting are fixed through bolts.

The aquaculture net cage structure based on the offshore wind power multi-pile foundation is characterized in that the mounting seat comprises two mounting plates, and anchor chain rings of netting are clamped between the two mounting plates and fixed through bolts.

The construction method of the aquaculture net cage structure is characterized by comprising the following steps of:

s1: sleeving the sleeve component on the pile leg from the upper part, and inserting the bottom of the sleeve component into the surface of the sea bed;

s2: mounting and fixing an anchor chain ring of the netting and an upright post of the sleeve component;

s3: the edge of the netting is tied on the fixed rod.

The construction method is characterized by further comprising the following operations after the step S1: when the bearing platform is installed, the upright post of the sleeve component is fixedly installed with the bearing platform through the flange.

The construction method is characterized in that the specific operation of the step S2 includes: and inserting the anchor chain ring of the netting between the two mounting pieces of the mounting seat, and then mounting and fixing the anchor chain ring and the mounting seat through bolts.

Compared with the prior art, the invention has the beneficial effects that:

1) the sleeve component is fixed without underwater construction, so that the construction difficulty is further reduced;

2) the wind turbine foundation is used for fixing the net cage, so that the cost of the net cage anchoring system is reduced;

3) the wind turbine utilizes resources above sea level, and the net cage utilizes resources below sea level, so that three-dimensional development of ocean resources is realized.

Drawings

FIG. 1 is a schematic view of the installation structure of the aquaculture net cage, a bearing platform and a fan;

fig. 2 is a schematic view of a leg and sleeve assembly connection of the present invention;

FIG. 3 is a schematic view of the sleeve assembly of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a schematic view of the structure of the netting of the present invention;

FIG. 6 is a schematic view of the connection structure of the mounting seat and the anchor chain ring according to the present invention;

FIG. 7 is a flow chart of the construction method of the present invention.

Detailed Description

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

As shown in fig. 1-6, an aquaculture net cage structure based on offshore wind power multi-pile foundation comprises a pile foundation and a net cage arranged around the pile foundation, wherein the pile foundation comprises a plurality of pile legs 3 arranged in a ring manner, the net cage comprises a plurality of net clothes 4 arranged between adjacent pile legs 3, the net clothes 4 and the pile legs 3 are arranged in a matched manner through sleeve components 5, each sleeve component 5 comprises a plurality of ring beams 500 sleeved outside the pile legs 3, the ring beams 500 are fixedly connected together through at least one upright column 501, fixing rods 502 are fixedly matched on the upright columns 501, anchor chain rings 400 of the net clothes 4 are arranged in a matched manner with the upright columns 501, and the edges of the net clothes 4 are connected with the fixing rods 502 in a matched manner. Fig. 1 shows the structure of the aquaculture net cage structure provided with a bearing platform 2 and a fan 1 after the net cage is installed.

Further, the ring beams 500 are fixedly connected together by 2-4 columns 501, preferably 3.

Further, a plurality of fixing blocks 503 are fixedly matched between the fixing rod 502 and the upright 501, so that a gap for binding the edge of the netting 4 is formed between the fixing rod 502 and the upright 501. And the fixing block 503 can also play a role of hanging the edge of the netting 4.

Further, a plurality of mounting seats 504 are fixedly matched on the upright 501, and the mounting seats 504 are fixed with the anchor chain ring 400 of the netting 4 through bolts.

In the above structure, the mounting base 504 includes two mounting plates, and the anchor ring 400 of the netting 4 is clamped between the two mounting plates and fixed by bolts.

As shown in fig. 7, a construction method of the aquaculture net cage structure comprises the following steps:

s1: sleeving the sleeve component 5 on the pile leg 3 from the upper part, and inserting the bottom of the sleeve component 5 into the sea bed surface;

s2: when the bearing platform 2 is installed, the upright 501 of the sleeve assembly 5 is fixedly installed with the bearing platform 2 through a flange.

S3: the anchor chain ring 400 of the netting 4 is fixedly arranged on the upright column 501 of the sleeve component 5;

s4: the edge of the net 4 is bound to the fixing rod 502.

In step S1, the sleeve assembly 5 is welded in advance. Because the ring beam 500 and the pile legs 3 are not in direct contact stress, the lower end of the upright column 501 can be driven into the sea bed surface for fixing, and the upper end of the upright column 501 can be connected onto the bearing platform 2 through a flange after the bearing platform 2 is installed.

The specific operation of step S3 includes: the anchor ring 400 of the netting 4 is inserted between the two mounting pieces of the mounting base 504, and the anchor ring 400 and the mounting base 504 are fixed by bolts.

In general, in the construction of a high pile cap, since a position limiter needs to be accurately set during pile driving, it is impossible to weld and fix a mesh structure to the leg 3 in advance. However, after the pile is driven, if the upper bearing platform 2 is not installed, the sleeve component can be used for sleeving the structure for fixing the net cage on the pile leg 3 from the upper end of the pile leg 3 so as to reduce the construction difficulty.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An aquaculture net cage structure based on offshore wind power multi-pile foundation comprises a pile foundation and a net cage arranged around the pile foundation in a surrounding mode, wherein the pile foundation comprises a plurality of pile legs (3) arranged in a surrounding mode, the net cage comprises a plurality of net clothes (4) arranged between adjacent pile legs (3), and the aquaculture net cage structure is characterized in that the net clothes (4) and the pile legs (3) are installed in a matched mode through sleeve components (5), each sleeve component (5) comprises a plurality of ring beams (500) sleeved outside the pile legs (3), the ring beams (500) are fixedly connected together through at least one upright column (501), fixing rods (502) are fixedly matched on the upright columns (501), anchor chain rings (400) of the net clothes (4) are installed in a matched mode with the upright columns (501), and the edges of the net clothes (4) are connected with the fixing rods (502) in a matched mode; a plurality of fixing blocks (503) are fixedly matched between the fixing rod (502) and the upright post (501), so that a gap for bundling the edge of the netting (4) is formed between the fixing rod (502) and the upright post (501); the upright columns (501) are fixedly matched with a plurality of mounting seats (504), and the mounting seats (504) are fixed with anchor chain rings (400) of the netting (4) through bolts;

the construction method of the aquaculture net cage structure comprises the following steps: the method comprises the following steps:

s1: sleeving the sleeve component (5) on the pile leg (3) from the upper part, and inserting the bottom of the sleeve component (5) into the sea bed surface;

s2: the anchor chain ring (400) of the netting (4) is fixedly arranged with the upright post (501) of the sleeve component (5);

s3: the edge of the net (4) is tied on the fixed rod (502).

2. An offshore wind power multi-pile foundation based aquaculture net cage structure according to claim 1, wherein said plurality of ring beams (500) are fixedly connected together by 2-4 columns (501).

3. The offshore wind power multi-pile foundation-based aquaculture net cage structure according to claim 1, wherein the mounting seat (504) comprises two mounting plates, and the anchor chain ring (400) of the netting (4) is clamped between the two mounting plates and fixed by bolts.

4. An offshore wind power multi-pile foundation based aquaculture cage structure according to any of the claims 1-2, characterized in that said step S1 is followed by the following operations: when the bearing platform (2) is installed, the upright column (501) of the sleeve component (5) is fixedly installed with the bearing platform (2) through the flange.

5. The offshore wind power multi-pile foundation based aquaculture net cage structure according to any one of claims 1-2, wherein the specific operations of step S2 comprise: and inserting the anchor chain ring (400) of the netting (4) between the two mounting pieces of the mounting seat (504), and mounting and fixing the anchor chain ring (400) and the mounting seat (504) through bolts.