CN207919587U - A kind of floating LNG liquefaction plants seat bottom foundation structure - Google Patents

Abstract

The utility model discloses a kind of floating LNG liquefaction plants to sit bottom foundation structure, including rubble-mound foundation, rubber billet, river bottom protection block stone and top barrier board；The floating LNG liquefaction plants of the utility model, which sit bottom foundation structure, can solve floating LNG liquefaction plant ships seat bottom stable problem under the conditions of extreme stormy waves, avoid unnecessary withdraw that the plant produced activity duration is caused to reduce, improve production efficiency.Floating Liquefied factory, which sits bottom foundation structure, can be directly arranged at LNG harbours and access bridge rear, and the liquefaction LNG product of production is facilitated to go out fortune.Rubber billet is used to improve the friction coefficient between floating LNG liquefaction plants floor and rubble-mound foundation, improve the stability against slope of floating LNG liquefaction plant ships, it avoids floating LNG liquefaction plants floor from being in direct contact the stress concentration for generating part with block stone, while also having function of shock insulation under geological process；River bottom protection block stone and top barrier board are for protecting rubble-mound foundation that subsea current is avoided to wash away.

Description

A kind of floating LNG liquefaction plants seat bottom foundation structure

Technical field

The utility model is related to a kind of seat bottom foundation structure, more particularly to a kind of floating LNG liquefaction plants sit base plinth knot Structure belongs to port and pier and floating LNG liquefaction industrial circles.

Background technology

Liquefied natural gas（Liquefied Natural Gas, LNG）It is a kind of clean energy resource, increasingly by energy industry The concern on boundary, port and pier and floating LNG liquefaction industrial circles.Floating LNG liquefaction plant ships include mainly that corresponding hull is public With facility and LNG liquefaction process equipment, involve great expense, generally require special dock carry out manufacture finish, by dragging To corresponding marine site, maneuverability is easy to use for wheel delivery.The major function of the device is to realize the purification of LNG air sources, liquefaction Technique.

But floating LNG liquefaction plants ship often cannot be satisfied itself stability of floating body under extreme wind wave action, therefore, it is necessary to Further increase the stability of floating LNG liquefaction plant ships.Under extreme stormy waves weather condition, which may cannot be satisfied life Operation is produced to need.Therefore, one of solution is exactly to realize that sitting bottom stablizes by adjusting the water ballast of floating LNG liquefaction plant ships Safety, meets the stability of extreme stormy waves weather condition.

In addition, practical seashore bottom surface often be uneven, and practical foundation of sea floor be often with marine soft soil, sand or Based on Coral reef development, floating LNG liquefaction plants ship may be cannot be satisfied and directly sit bottom safety, be in particular in that ground is uneven Sedimentation so that floating LNG liquefaction plant keel structures fracture, the destructions such as bottom plate part large deformation.

Utility model content

The utility model proposes a kind of floating LNG liquefaction plants to sit bottom foundation structure, solves and overcomes in the prior art Uneven settlement of foundation makes floating LNG liquefaction plant keel structures fracture, destroy, and floating LNG liquefaction plant ships are directly sat Bottom unsafe problems.

In order to solve the above-mentioned technical problem, the utility model provides the following technical solution：

A kind of floating LNG liquefaction plants of the utility model sit bottom foundation structure, including rubble-mound foundation, rubber billet, shield Sole piece stone and top barrier board, it is that a kind of jackstone changes and fills out foundation structure that the floating LNG liquefaction plants, which sit bottom foundation structure,；Jackstone Bedding should be located at using closely knit, good block of stone of grading is easy on the preferable supporting course of foundation bearing capacity；Rubber billet position In rubble-mound foundation top, floating LNG liquefaction plants ship is directly located at rubber billet top.

As a kind of optimal technical scheme of the utility model, the floating LNG liquefaction plants are sat bottom foundation structure and are needed Corresponding be arranged sits bottom berthing pier in place, while necessary erosion control warning pile is being arranged with access bridge sides adjacent, can be directly arranged at LNG harbours and access bridge rear.

As a kind of optimal technical scheme of the utility model, the rubber billet uses built-in rubber steel plate, built-in Steel plate and rubber plate thickness should be determined according to model investigation.

As a kind of optimal technical scheme of the utility model, the river bottom protection block stone and top barrier board should be according to local seas Condition, which calculates, determines corresponding specification, while the width b of top barrier board should meet seat bottom safety requirements.

The advantageous effect that the utility model is reached is：The floating LNG liquefaction plants of the utility model sit bottom foundation structure It can solve floating LNG liquefaction plant ships under the conditions of extreme stormy waves and sit bottom stable problem, unnecessary withdraw is avoided to lead to factory The production operation time is reduced, and improves production efficiency.The Floating Liquefied factory, which sits bottom foundation structure, can be directly arranged at LNG harbours With access bridge rear, the liquefaction LNG product of production is facilitated to go out fortune.Rubber billet is for improving floating LNG liquefaction plant floors Friction coefficient between rubble-mound foundation improves the stability against slope of floating LNG liquefaction plant ships, and floating LNG is avoided to liquefy Factory's floor is in direct contact the stress concentration for generating part with block stone, while also having function of shock insulation under geological process；River bottom protection Block stone and top barrier board are for protecting rubble-mound foundation that subsea current is avoided to wash away.

Description of the drawings

Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.In the accompanying drawings：

Fig. 1 is the planar structure schematic diagram of the utility model；

Fig. 2 is the section structure diagram of the utility model；

In figure：1, rubble-mound foundation；2, rubber billet；3, river bottom protection block stone；4, barrier board；5, floating LNG liquefaction plants ship； 6, bottom berthing pier in place is sat；7, erosion control warning pile；8, LNG harbours；9, access bridge.

Specific implementation mode

The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.

Embodiment 1

As shown in Figs. 1-2, the utility model provides a kind of floating LNG liquefaction plants seat bottom foundation structure, including pierre perdue Bed 1, rubber billet 2, river bottom protection block stone 3 and top barrier board 4, it is a kind of jackstone that floating LNG liquefaction plants, which sit bottom foundation structure, It changes and fills out foundation structure；Rubble-mound foundation 1 should be located at foundation bearing capacity and preferably hold using closely knit, good block of stone of grading is easy to On power layer；Rubber billet 2 is located at 1 top of rubble-mound foundation, and floating LNG liquefaction plants ship 5 is directly located on rubber billet 2 Portion, 5 general plane scale of floating LNG liquefaction plants ship are 250m * 60m, moldeed depth 30m.Seat base plinth general layout scale For 256m * 66m, sitting base plinth top mark height according to the ballast amount of floating LNG liquefaction plant ships, corresponding stormy waves condition and should hold Power layer foundation bearing capacity and deformation requirements determine.

Rubble-mound foundation 1 uses good block of stone of 10 ~ 100kg gradings, is easy to closely knit, the suitable block stone of grading.Meanwhile jackstone Bedding 1 should select to be located on the preferable supporting course of foundation bearing capacity, can meet ground requirement for bearing capacity and effectively avoid unevenness Even sedimentation.The present embodiment has selected in coral reef crushed stone soil layer, and submarine surface sand should be removed using dredging mode.Rubber steel pad Plate 2 should be determined as the case may be using the rubber steel pad of certain thickness specification, plane laying, paving mode.River bottom protection block stone 3 is adopted With 200 ~ 300kg block stones, top barrier board 4 uses 20cm thickness concrete barrier boards, prevents subsea current from washing away 1 side of rubble-mound foundation Face and top.

Floating LNG liquefaction plants sit bottom foundation structure and corresponding be arranged are needed to sit bottom berthing pier 6 in place, at the same with access bridge Necessary erosion control warning pile 7 is arranged in sides adjacent, can be directly arranged at 9 rear of LNG harbours 8 and access bridge.

Sitting bottom berthing 6 planar dimension of pier in place should determine according to 5 berthing load of floating LNG liquefaction plants ship, this implementation Example uses 12m*12m, basis to use steel-pipe pile, and function is consistent with " butterfly " the arrangement dolphin of dolphin pierhead, is mainly used for auxiliary It helps floating LNG liquefaction plants ship 5 in place, then realizes that seat bottom is in place by adjusting ballasting Water Ballast.Erosion control warning pile 7 is mainly For preventing accidental impact access bridge during sitting bottom of floating LNG liquefaction plants ship 5, the unnecessary accident of access bridge.Sit bottom berthing Pier 6 in place and erosion control warning pile 7 belong to the affiliated facility for sitting bottom foundation structure.

Rubber billet 2 uses built-in rubber steel plate, and built-in steel plate and rubber plate thickness should be true according to model investigation It is fixed.

River bottom protection block stone 3 and top barrier board 4 should be calculated according to local sea situation determines corresponding specification, while top barrier board 4 width b, which should meet, sits bottom safety requirements.

A kind of floating LNG liquefaction plants sit the method for construction of bottom foundation structure, and construction step is as follows：

A) corresponding dredger, pile driving barge are dispatched, in combination with the dredging of Wharf Construction, pile sinking technology requirement, is determined corresponding Ship machine equipment ability；

B) ship dredging construction is carried out using the dredger for being dispatched to scene in advance, until the supporting course that technology requires；

C) using the pile driving barge for being dispatched to scene in advance, complete to sit the heavy of bottom berthing pier 6 in place and erosion control warning pile 7 Pile driving construction；

D) the block stone for meeting grading requirement is selected, 1 water throwing of rubble-mound foundation construction is carried out using barge, until technology requirement Absolute altitude, while the necessary closely knit processing of layering is carried out according to the thickness of rubble-mound foundation 1, it is contemplated that use underwater compacting or underwater Quick-fried rammer.

E) the underwater leveling construction for implementing rubble-mound foundation 1 is divided into thick flat, thin gentle superfine flat three process, thin flat, pole The block stone that thin flat process uses can be changed to more stringent two slabstones or rubble of specification requirement as needed, it is ensured that technology is wanted The flatness asked.Corresponding underwater smooth construction should require diver's special type construction quality, it is ensured that construction safety.

F) 2 installation of rubber billet is completed, corresponding underwater installation should require diver's special type construction money Matter, it is ensured that construction safety.

G) river bottom protection block stone 3 and 4 installation of top surface barrier board are completed, corresponding underwater installation should require diver Extraordinary construction quality, it is ensured that construction safety.

H) it while implementing process d ~ g, arranges to complete to sit the seats such as bottom berthing pier 6 in place and erosion control warning pile 7 in time The attached top facility of bottom foundation structure is constructed.

The floating LNG liquefaction plants of the utility model, which sit bottom foundation structure, can solve floating LNG under the conditions of extreme stormy waves Liquefaction plant ship sits bottom stable problem, avoids unnecessary withdraw that the plant produced activity duration is caused to reduce, improves production efficiency. Floating Liquefied factory, which sits bottom foundation structure, can be directly arranged at 9 rear of LNG harbours 8 and access bridge, facilitate the liquefaction LNG product of production Go out fortune.Rubber billet 2 is used to improve the friction coefficient between 5 bottom plate of floating LNG liquefaction plants ship and rubble-mound foundation 1, improves The stability against slope of floating LNG liquefaction plant ships avoids 5 bottom plate of floating LNG liquefaction plants ship from being in direct contact generation with block stone The stress concentration of part, while also having function of shock insulation under geological process；River bottom protection block stone 3 and top barrier board 4 are thrown for protecting Ground mass bed 1 avoids subsea current from washing away.

Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it still can be with technical scheme described in the above embodiments is modified, or to which part technical characteristic Carry out equivalent replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims (4)

1. a kind of floating LNG liquefaction plants sit bottom foundation structure, including rubble-mound foundation（1）, rubber billet（2）, river bottom protection block stone （3）With top barrier board（4）, which is characterized in that it is that a kind of jackstone changes and fills out base that the floating LNG liquefaction plants, which sit bottom foundation structure, Plinth structure；Rubble-mound foundation（1）Using block stone, it is located on the preferable supporting course of foundation bearing capacity；Rubber billet（2）Positioned at throwing Ground mass bed（1）Top, floating LNG liquefaction plant ships（5）Directly it is located at rubber billet（2）Top.

2. a kind of floating LNG liquefaction plants according to claim 1 sit bottom foundation structure, which is characterized in that the floating LNG liquefaction plants sit bottom foundation structure and corresponding be arranged are needed to sit bottom berthing pier in place（6）, while being arranged with access bridge sides adjacent Erosion control warning pile（7）, it is directly arranged at LNG harbours（8）And access bridge（9）Rear.

3. a kind of floating LNG liquefaction plants according to claim 1 sit bottom foundation structure, which is characterized in that the rubber Billet（2）Using built-in rubber steel plate, built-in steel plate and rubber plate thickness are determined according to model investigation.

4. a kind of floating LNG liquefaction plants according to claim 1 sit bottom foundation structure, which is characterized in that the river bottom protection Block stone（3）With top barrier board（4）It is calculated according to local sea situation and determines corresponding specification, while top barrier board（4）Width b Meet and sits bottom safety requirements.