CN212125461U

CN212125461U - Novel marine floating basis

Info

Publication number: CN212125461U
Application number: CN202020577384.4U
Authority: CN
Inventors: 袁威; 施军; 曾青; 黄卓
Original assignee: Shenzhen Hasby Marine Technology Co Ltd; Shenzhen Haisibi Chinampa Technology Development Co ltd
Current assignee: Shenzhen Hasby Marine Technology Co Ltd; Shenzhen Haisibi Chinampa Technology Development Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-12-11
Anticipated expiration: 2030-04-17

Abstract

The utility model relates to a novel offshore floating foundation, which comprises a floating body and a mooring system and is characterized in that the floating body comprises a plurality of side-by-side sheet bodies, the sheet bodies comprise an upper floating body, a lower floating body, a deck and a plurality of stand columns, the stand columns are uniformly connected to the upper surface of the lower floating body, the upper floating body is positioned above the lower floating body and is fixedly connected with the stand columns, and the deck is arranged at the upper ends of the stand columns; the adjacent sheet bodies are connected through a plurality of transverse supporting rods; the middle part of the lower surface of the lower floating body is connected with a plurality of supporting columns, the other ends of the supporting columns are connected with a caisson, and the caisson is connected with the mooring system. The utility model discloses the combination of caisson and body can effectively reduce the whole motion response of platform in the wave, possess good motion performance in the wave, and this novel marine floating foundation structure is simple stable, is convenient for install and transport, low in manufacturing cost, is convenient for maintain and repair.

Description

Novel marine floating basis

Technical Field

The utility model relates to an ocean engineering and ocean infrastructure field, specific theory relates to a novel marine floating basis.

Background

Compared with the land, the ocean has wider space and abundant resources, and the development of the ocean needs to provide matched ocean infrastructure. Although most of the marine infrastructures are developed for energy exploitation, the marine infrastructures are developed into 'marine land' suitable for tourism, economy and space expansion, and the development prospect is wide.

The shallow sea area generally adopts traditional fixed structure thing, but along with the increase of depth of water, its construction cost increases sharply, consequently in deeper sea area, the practicality of floating foundation is better, has advantages such as mobility is good, convenient assembling and recycle, consequently it is future trend to develop marine floating foundation vigorously. At present, the offshore floating foundation mainly has a single-upright-column, semi-submersible type and tension leg type structure, but most of the offshore floating foundations have large body shapes, high difficulties in offshore transportation and offshore installation, high cost and difficult maintenance, and the offshore floating foundations are easily influenced by sea waves, have large response to offshore motion and poor stability, are easy to shake, incline and even overturn, and are not favorable for stably performing offshore operation or constructing large-scale superstructure on the offshore floating foundations.

The above problems are worth solving.

Disclosure of Invention

In order to overcome the poor stability of current floating foundation, take place the problem that rocks easily, the utility model provides a stronger novel marine floating foundation of commonality.

The utility model discloses technical scheme as follows:

a novel offshore floating foundation comprises a floating body and a mooring system, and is characterized in that the floating body comprises a plurality of side-by-side sheet bodies, each sheet body comprises an upper floating body, a lower floating body, a deck and a plurality of stand columns, the stand columns are uniformly connected to the upper surface of the lower floating body, the upper floating body is positioned above the lower floating body and fixedly connected with the stand columns, and the deck is arranged at the upper ends of the stand columns; the adjacent sheet bodies are connected through a plurality of transverse supporting rods; the middle part of the lower surface of the lower floating body is connected with a plurality of supporting columns, the other ends of the supporting columns are connected with a caisson, and the caisson is connected with the mooring system.

According to the above scheme the utility model discloses, its characterized in that, go up the body with the lower body is airtight hollow rectangular shape, and its cross section is square or circular or oval.

Further, the lower floating body is of a steel structure.

According to the above scheme the utility model discloses, its characterized in that, the body is including three the lamellar body, it is adjacent connect one between two stands on the corresponding position of lamellar body the transverse supporting rod, it is adjacent the lower body corresponds and connects between the position the transverse supporting rod.

According to the above technical scheme the utility model discloses, its characterized in that, the size of the cross section of the caisson of locating is less than the size of the cross section of body.

Furthermore, the support column is of a circular steel structure, the upper end of the support column is welded with the lower surface of the lower floating body, and the lower end of the support column is inserted into the caisson.

According to above-mentioned scheme the utility model discloses, its characterized in that, the stand with the pillar is hollow structure, and inside cavity intercommunication forms first passageway.

Furthermore, a hollow second channel is arranged in the caisson, and the second channel is communicated with the first channel.

According to the above scheme the utility model discloses, its characterized in that, the caisson is day font or ring shape.

According to above-mentioned scheme the utility model discloses, its characterized in that, deck top is equipped with superstructure and/or aerogenerator.

According to above scheme the utility model discloses, its characterized in that, mooring system includes a plurality of catenary lines, the catenary line includes anchor chain and anchor, the one end of anchor chain is connected the side of caisson, the other end is connected the anchor.

Furthermore, a plurality of the catenary wires are symmetrically distributed around the caisson and are in a radial shape.

According to the above scheme the utility model discloses, its characterized in that, the caisson is reinforced concrete earth material.

According to the above scheme the utility model discloses, its beneficial effect lies in:

the combination of the caisson and the floating body can effectively reduce the overall motion response of the platform in the waves, and the platform has good motion performance in the waves; the novel offshore floating foundation has the advantages of simple and stable structure, convenience in installation and transportation, low manufacturing cost and convenience in maintenance and repair;

furthermore, the sea surface is divided into lattices by the transverse supporting rods between the upper floating body and the sheet bodies, so that the influence of the rolling and pitching of the platform under the low sea condition is reduced, and the wave force of sea waves on the platform under the high sea condition is reduced;

furthermore, the first channel and the second channel form a complete overhaul channel, so that personnel can conveniently overhaul the floating foundation;

furthermore, the caisson is made of reinforced concrete materials, so that the gravity center of the floating foundation is lowered, the bearing capacity of the platform is improved, and more or higher facilities can be arranged on the deck;

furthermore, a water pool is enclosed by the hollow-out part of the caisson on the sea surface, so that the function of a heave plate is achieved, and the overall motion response of the platform in waves is further reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a left side view of the present invention.

Fig. 3 is a top view of the floating body of the present invention.

Fig. 4 is a top view of the caisson of the present invention.

In the figure, 1, a lower float; 2. an upper float; 3. a column; 4. a transverse stay bar; 5. a deck; 6. caisson; 7. a pillar; 8. building the upper layer; 9. a wind power generator; 10. an anchor chain; 11. an anchor; 12. a second channel; 13. a pool.

Detailed Description

For better understanding of the objects, technical solutions and technical effects of the present invention, the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be noted that the following examples are only for explaining the present invention and are not intended to limit the present invention.

As shown in fig. 1, a novel offshore floating foundation, including body and mooring system, the body includes a plurality of lamellar bodies side by side, and the lamellar body includes body 2, lower body 1, deck 5 and a plurality of stand 3, and stand 3 connects evenly under body 1 upper surface, and body 2 is located the top of body 1 down, and with stand 3 fixed connection, and is specific, and body 2 passes from the through-hole at 3 middle parts of stand, links together all stands 3. The deck 5 is arranged at the upper end of the upright post 3; the adjacent sheet bodies are connected through a plurality of transverse supporting rods 4; the middle part of the lower surface of the lower floating body 1 is connected with a plurality of struts 7, the other ends of the struts 7 are connected with a caisson 6, and the caisson 6 is connected with a mooring system.

Therefore, in the assembling process, the integral deck of the floating foundation is formed by combining a plurality of small decks, the single plate bodies are assembled firstly and then combined, and the mode is convenient to install and is also suitable for remote transportation and installation; in other embodiments, the sheet part under the deck can be assembled and spliced, and then a whole large deck is erected on the columns 3. An upper building 8 can be arranged on the deck 5 to serve as a using place for life, travel and conference exhibition, and a wind driven generator 9 can also be arranged to serve as a new energy supply platform.

In the specific embodiment, the floating body comprises three sheet bodies, a transverse supporting rod 4 is connected between two upright posts 3 at the corresponding positions of the adjacent sheet bodies, and a transverse supporting rod 4 is connected between the corresponding positions of the adjacent lower floating bodies 1.

As shown in fig. 2 and 3, in the present embodiment, each sheet body has a lower floating body 1, an upper floating body 2, seven columns 3 and a deck 5, the seven columns 3 are uniformly arranged on the lower floating body 1, a through hole is formed in the middle of each column 3, and the upper floating body 2 passes through the through hole on the column 3 to connect the columns 3; fourteen transverse supporting rods 4 are arranged between two adjacent sheet bodies and divided into an upper layer and a lower layer, seven transverse supporting rods are arranged on each layer, the upper transverse supporting rods 4 are respectively connected with two stand columns 3 at corresponding positions of the adjacent sheet bodies, the lower transverse supporting rods 4 are connected between corresponding positions of the adjacent lower floating bodies 1 and are perpendicular to the lower floating bodies 1, the upper and lower transverse supporting rods 4 are observed to be overlapped at an overlooking angle, and the upper floating bodies 2 and the transverse supporting rods 4 form a grid shape.

In the embodiment, the upper floating body 2 and the lower floating body 1 are both closed hollow strip-shaped, and the cross sections of the upper floating body 2 and the lower floating body are both square, round or oval, preferably, the cross section of the lower floating body 1 is oval, and the cross section of the upper floating body 2 is round; preferably, the lower floating body 1 is a steel structure, which not only can provide buoyancy, but also can ensure the longitudinal strength of the floating foundation. During normal operation, lower floating body 1 is whole to be in under water, and the water plane can be according to the needs adjustment stand 3 height of sea condition in the center department of last floating body 2, and the surface of water in the floating body scope is divided into latticed with the sea by the transverse brace 4 between upper floating body 2 and the lamellar body, is of value to reducing the influence of platform roll and pitch under the low sea condition, and under the high sea condition, the wave can pass the body to reduce the influence that the platform received wave strength.

The middle part of the lower surface of the lower floating body 1 is welded with a plurality of support columns 7, the lower ends of the support columns 7 are inserted into the caisson 6, the top view of the caisson 6 is approximately square and is positioned under the floating body and concentrated at the middle part of the floating body, the size of the cross section of the caisson 6 is smaller than that of the cross section of the floating body, and a reinforced concrete structure is adopted, so that the gravity center of the floating foundation is mainly reduced, and more or higher facilities can be arranged on a deck. The horizontal section of the caisson 6 is in a shape of a Chinese character 'ri' or a circular ring, in the embodiment, the caisson 6 is in a shape of a Chinese character 'ri', and the hollowed part of the caisson 6 surrounds a water pool 13 on the sea surface, so that the function of a heave plate is achieved, and the overall motion response of the platform is favorably reduced; the support post 7 is a circular steel structure, and the length of the support post 7 can be adjusted according to the water depth and the design requirement.

As shown in fig. 4, the pillars 7 and the columns 3 are hollow structures, the inner cavities are communicated to form a first channel (marked in the figure), and the caisson 6 is internally provided with a hollow second channel 12, and the second channel 12 is communicated with the first channel. Personnel can enter the caisson 6 through the upright posts 3 of the floating bodies and the lower floating bodies 1 and the support posts 7 to form a complete overhaul channel.

As shown in fig. 2, the mooring system includes a plurality of catenary lines, each catenary line includes an anchor chain 10 and an anchor 11, one end of each anchor chain 10 is connected to a side edge of the caisson 6, the other end of each anchor chain is connected to the anchor 11, and the catenary lines are symmetrically distributed around the caisson 6 and are radial.

The utility model provides a novel multipurpose offshore floating foundation with strong universality, and the underwater foundation structure has novel design; the combination of the caisson and the floating body can effectively reduce the overall motion response of the platform in the waves, and the platform has good motion performance in the waves; the structure fully uses concrete materials, is simple and stable in structure and is convenient to install and transport; the novel offshore floating foundation is low in manufacturing cost and convenient to maintain and repair.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A novel offshore floating foundation comprises a floating body and a mooring system, and is characterized in that the floating body comprises a plurality of side-by-side sheet bodies, each sheet body comprises an upper floating body, a lower floating body, a deck and a plurality of stand columns, the stand columns are uniformly connected to the upper surface of the lower floating body, the upper floating body is positioned above the lower floating body and fixedly connected with the stand columns, and the deck is arranged at the upper ends of the stand columns; the adjacent sheet bodies are connected through a plurality of transverse supporting rods; the middle part of the lower surface of the lower floating body is connected with a plurality of supporting columns, the other ends of the supporting columns are connected with a caisson, and the caisson is connected with the mooring system.

2. A novel offshore floating foundation according to claim 1, wherein said upper and lower floats are closed hollow strips and have a square or circular or oval cross-section.

3. The novel floating foundation of claim 1, wherein said floating body comprises three said plates, and wherein a said cross brace is connected between two said columns at corresponding positions of adjacent said plates, and wherein a said cross brace is connected between corresponding positions of adjacent said lower floating body.

4. A new offshore floating foundation according to claim 1, characterised in that the caisson is of a cross-section of smaller dimensions than the cross-section of the floating body.

5. The novel offshore floating foundation of claim 1, wherein said columns and said pillars are hollow, and the internal cavities communicate to form a first channel.

6. A novel offshore floating foundation according to claim 5, wherein the caisson is internally provided with a second hollow channel, said second channel being in communication with said first channel.

7. A new offshore floating foundation according to claim 1, characterised in that the caissons are in the shape of a Chinese character of ri or a circle.

8. A new offshore floating foundation according to claim 1, characterised in that a superstructure and/or wind generators are provided above the deck.

9. A novel offshore floating foundation according to claim 1, wherein said mooring system comprises a plurality of catenary lines, said catenary lines comprising anchor chains and anchors, said anchor chains having one end connected to said caisson side and the other end connected to said anchors.

10. A novel offshore floating foundation according to claim 9, wherein a plurality of said catenary lines are symmetrically disposed around said caisson and are radial.