CN1269759A

CN1269759A - Mobile offshore base

Info

Publication number: CN1269759A
Application number: CN 98808856
Authority: CN
Inventors: S·J·梅纳德; T·R·J·米尔斯
Original assignee: McDermott Technology Inc
Current assignee: Berbakov Paul J.
Priority date: 1997-09-08
Filing date: 1998-07-20
Publication date: 2000-10-11
Anticipated expiration: 2018-07-20
Also published as: NO322543B1; AU726878B2; EP1012036A4; DE69826692T2; CN1107613C; DK1012036T3; PT1012036E; NO20001082L; ID24329A; TR200000642T2; ES2227866T3; NO20001082D0; AU8571898A; OA11332A; EP1012036A1; BR9811761A; EP1012036B1; WO1999012806A1; DE69826692D1

Abstract

A mobile offshore base (10) is formed from several individual single base units (12) that are connected together at sea to form the complete base. The complete base (10) forms a runway and support base for fixed wing and rotary wing aircraft and also provides space for stowage and transport of equipment and personnel. The single base units (12) are similar semi-submersible units that are linked together by hinges and/or U-joints to form the complete mobile offshore base (10). Each single base unit (12) is self-propelled and is also capable of independent operations at widely separated locations. The single base units are each formed from lower hulls, columns that extend upward from the lower hulls, and an upper hull attached to the columns.

Description

Mobile offshore base

The background of invention

1. FIELD OF THE INVENTION

The present invention relates generally to a kind of military logistics base, relates in particular to a kind of mobile offshore base.

2. professional background

In warlike operation, no matter be peaceful or the wartime, raw material and personnel keep and/or supply all needs operational base.Because the restriction of political situation and land availability, having become more and more is difficult to preserve military power in the world wide away from motherland.In addition, be not constantly to need under the situation in military base, it is quite huge keeping the expensive of these bases in some different countries.This just needs the base of some other types.

Summary of the invention

The present invention can satisfy the demand.It provides a kind of mobile offshore base.This mobile offshore base constitutes to constitute several unit, independently single base that complete base uses by at sea being connected with each other together.This complete base has formed the runway that the quiet wing and autogiro use and has ensured the base, also provides simultaneously to hold and transport the space that equipment and personnel use.These single base unit classes are similar to the semisubmersible unit, and they are connected with each other together to constitute complete mobile offshore base by articulated joint and/or U-shaped interface.Each unit, single base is the self-propelled formula, and can also work alone on remote position.These unit, single base each by the bottom buoyancy aid, constituted from upwardly extending pillar of this bottom buoyancy aid and the upper body that is installed on the pillar.

Brief description

In order to understand characteristics of the present invention and purpose better, be described in detail below in conjunction with accompanying drawing, wherein identical parts are represented by identical label, in these figure:

Fig. 1 is the block diagram of unit, the single base of the present invention.

Fig. 2 is the typical cross-section of unit, the single base of the present invention.

Fig. 3 is the part sectional view of unit, the single base of the present invention.

Fig. 4 is a block diagram, and it shows unit, the single base of the present invention is connected with each other together to constitute a base movably.

The detailed description of preferred embodiment

See also accompanying drawing, as can see from Figure 4, what the present invention was total is represented by label 10.Movably military base 10 is made of a plurality of unit, single base 12 that at sea are connected with each other together.Each unit, single base 12 total forming by at least two bottom buoyancy aids 14, pillar 16 and upper body 18.

Can see that from Fig. 1 and Fig. 2 bottom buoyancy aid 14 preferably is ship shape (having the shape that is the fleetline forward andor aft symmetrically), so that move with moving on effective power and propulsion capability with work speed.Propelling and dynamic positioning booster are represented by label 20.

Rigidity is installed on the bottom buoyancy aid 14 and extends upward from the bottom buoyancy aid along a plurality of pillars 16 that the length of this bottom buoyancy aid is provided with at interval.As shown in the figure, the rectangular or oblong in the cross section of this column 16, but also can be any suitable shape.

Upper body 18 rigidity are installed on the top end near the pillar 16 of the outside opposite side of upper body 18, so that the bottom buoyancy aid separates the width across upper body, and parallel with the longitudinal axis of upper body.The strut 22 that rigidity is installed between pillar 16 and the upper body 18 provides support, so that with the deflection between the bottom buoyancy aid 14 with keep the space and reduce to minimum.The size of upper body 18 and structure are made into three lower tween deck 26 that can form in a promenade deck 24 and the illustrated configuration.This promenade deck 24 is used as the hardstand that airstrip that the quiet wing and autogiro use and touch-down zone and loading and unloading aircraft are used.Lower tween deck 26 is used as the storage area of living space and equipment and supply.Fig. 3 shows and loads and storage power.

Each unit, single base 12 is provided with variable ballast case 28 in bottom buoyancy aid 14 and pillar 16.This variable ballast case 28 is used as the semisubmersible container, so that selectively operate at different drafts.When being in mobile draft, bottom buoyancy aid 14 is on its most shallow draft in the hope of maximum speed.When being in the work draft, as shown in Figure 4, bottom buoyancy aid 14 is immersed under the horizontal surface fully, and in order to the horizontal surface area of passing fuselage littler than mobile draft to be provided, it can reduce trim, rolling and heave movement owing to wave action causes greatly.When arriving, storm then selects the lifesaving draft.Handle variable ballast case 28, so that accept or discharge ballast water in well-known mode in the prior art.

In running, each unit, single base 12 can use separately or as shown in Figure 4 unit, one or more single base is connected with each other and be applicable to the mobile offshore base of admitting the quiet wing and autogiro with formation together.In this structure, these unit that are connected together preferably are loaded to work draft as shown in the figure, so that will reduce to minimum from the motion of wave.In order to constitute mobile offshore bases and to have spendable separate unit with five separate units 12, each separate unit 12 all is designed to: flight deck is that 300 meters long, 152 meters wide and its highly are 76 meters.For these sizes, each bottom buoyancy aid 14 is 270 meters long, 38 meters wide and 16 meters high, and has and be fleetline forward andor aft shape symmetrically.According to added load, mobile draft is estimated between 13 and 14 meters.The work draft is estimated as 38 meters, and the lifesaving draft is estimated as 35 meters.As can see from Figure 1, adopt special sea to connect all unit by articulation piece and/or U-shaped interface with adaptor union 30.Owing to can run into bigger load, therefore need special adaptor union.This type of special adaptor union is that the sequence number of submitting July 31 in 1997 is 08/XXX, the theme of the common wait patent application of XXX.

Owing in the scope of the mentioned principle of the invention multiple different embodiment can be arranged in this article, and owing to require also multiple modification can be arranged among the embodiment described in detail according to the description of law defined in this article, therefore should be understood that, details mentioned herein is the usefulness of conduct diagram just, not any restriction of tool.

Claims

1. removable seabase of floating, it comprises a plurality of unit, single base that are connected with each other together, each unit, described single base comprises:

A. at least two bottom buoyancy aids;

B. be provided with at interval and from the upwardly extending a plurality of pillars of bottom buoyancy aid along the length of described bottom buoyancy aid; And

C. a upper body, described upper body is installed in the top of described pillar, so that described bottom buoyancy aid separates the width across described upper body, and the longitudinal axis that makes each described bottom buoyancy aid be roughly parallel to described upper body extends.

2. mobile offshore base as claimed in claim 1 is characterized in that, unit, described single base is connected with each other together to constitute airstrip and hardstand.

3. mobile offshore base as claimed in claim 1 is characterized in that, the draft of each unit, described single base is selectively regulated.

4. mobile offshore base as claimed in claim 1 is characterized in that, unit, described single base is end-to-end being connected with each other.

5. mobile offshore base as claimed in claim 1 is characterized in that, unit, described single base is the self-propelled formula.

6. removable seabase of floating, it comprises a plurality of being connected with each other together to constitute the unit, the single base of self-propelled formula of airstrip and hardstand, each unit, described single base comprises:

A. at least two bottom buoyancy aids;

7. mobile offshore base as claimed in claim 6 is characterized in that, the draft of each unit, described single base is selectively regulated.

8. mobile offshore base as claimed in claim 6 is characterized in that, unit, described single base is end-to-end being connected with each other.