CN103911978A - Offshore prefabricated platform and mounting method thereof - Google Patents
Offshore prefabricated platform and mounting method thereof Download PDFInfo
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- CN103911978A CN103911978A CN201410111008.5A CN201410111008A CN103911978A CN 103911978 A CN103911978 A CN 103911978A CN 201410111008 A CN201410111008 A CN 201410111008A CN 103911978 A CN103911978 A CN 103911978A
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Abstract
The invention discloses an offshore prefabricated platform and a mounting method thereof. The body is provided with a movable retaining mechanism used for retaining foundation below a bottom plate of the body, a plurality of conical piles perpendicular to the bottom plate are arranged on the bottom plate of the body, the conical portion of each conical pile extends out of the bottom plate of the body and is shaped in a circular cone or pyramid, grouting water injection holes are arranged in the bottom plate of the body, and the body drags to a construction preset foundation during mounting. The body is temporarily supported on the foundation by laying down a positioning pile, the foundation below the bottom plate of the body is retained by laying down the movable retaining mechanism, concrete or concrete grout is injected to the lower side of the bottom plate via the grouting water injection hole so as to form a concrete layer on the surface of the foundation, and the body is rested downwardly by folding the positioning pile, so that the conical piles can be inserted into the concrete layer. The foundation is better in filling, the conical piles can support the weight of the entire platform and can be inserted to extrude the concrete layer, and stability after the body is rested is effectively improved.
Description
Technical field
The present invention relates to a kind of concrete caisson basic platform technology, especially relate to marine prefabricated platform and mounting method thereof.
Background technology
Along with to constantly the carrying out of ocean exploitation, operating personnel and equipment need to do long stop near off-lying sea or islands and reefs, therefore need to build fixed job platform or supply platform.Common construction method has following several: the chinampa platform or the caisson platform that 1, set in advance steel work, tow to operation place by towboat, chinampa platform is fixed on sea by ship anchor mooring or piling mode, caisson platform sinks to the bottom by the half latent end mode of sitting, and then on the platform surfacing, builds operation or the required superstructure of supply.The chinampa platform of this steel work or the construction schedule of caisson platform are long, and investment is large, need certain depth of water when chinampa platform is fixing, can not directly be fixed on islands and reefs or sandy beach, poor stability, carry out marine mooring or the fixing difficulty of construction of driving piles high; And complicated operation at the bottom of the seat of caisson platform, the difficulty of construction of ground levelling is high.2, be transported to construction plant by building required constructional materials and the equipment of job platform by tender, directly carry out at the scene foundation dredging and construct, then on ground, carry out concreting or steel work setting, the construction of fulfil assignment platform or supply platform.This mode can cause irreversible destruction to the marine environment of job site, and the impact of work progress climate is larger, and the transportation of constructional materials is more difficult in addition, causes building cycle long, and cost is high.3, the main platform body of precast concrete, body interior arranges gravel cabin and guide pile, move to operation place by towing mode, guide pile is extended to outside main body base plate and is supported on ground, open gravel cabin, fill ground to the space between base plate with gravel, complete the fixing of main platform body.This mode is easy to operate, can sit fast the end and fix.But be subject to the impact of ground place environment, on the more serious ground of sapping or the larger ground of differential settlement, the effect that use carries gravel filling is not easy to control, between base plate and layer of gravel surface, easily there is gap, cause stressed inhomogeneous, affect the stability that it sits the end, cannot guarantee the requirement of permanent reinforcement.
Summary of the invention
The object of this invention is to provide the marine prefabricated platform that a kind of ground stabilization is firm, sit on bottom stability is higher.
Another object of the present invention is to provide a kind of mounting method of marine prefabricated platform.
Technical solution of the present invention is: a kind of marine prefabricated platform, in described main body, be provided with the movable enclosing mechanism for ground below main body base plate described in enclosing, be provided with the vertical tapered pile of some and described main body base plate outward at the base plate of described main body, the cone head part of each tapered pile is to described main body base plate extension, and cone head part is circular cone or polygonal pyramid, is provided with grouting water injection hole on the base plate of described main body.
By movable enclosing mechanism, the ground enclosing of main body base plate below is got up, thereby form the space of sealing relatively, foundation surface by grouting water injection hole below base plate forms layer of concrete, can well fill and lead up foundation surface, enclosing mechanism can form template, be used for the sizing of layer of concrete and solidify, the tapered pile of circular cone or polygonal pyramid more easily inserts in layer of concrete, both can directly support the weight of whole main body, also can be used as main body and sit the auxiliary part at the end, in tapered pile inserts layer of concrete time, can also be to both sides extruded concrete, thereby play the effect of dense concrete layer, filling effect is better, can increase main body and sit the stability at the end.
Described movable enclosing mechanism comprises the clamping plate and the stripe board that are arranged on described main body side, and wherein stripe board is vertically located between clamping plate and described main body wall, and can move up and down along described main body wall.Stripe board is arranged on outside main body wall, can form fast enclosing, easy and simple to handle, controls the width of stripe board, can form more closely knit enclosing in the region of ground big rise and fall.
In described tapered pile, be provided with the hollow explosive conduit of perforation.To explosive on the layer of concrete of cone head part below, after detonating, form quick-fried hole by explosive conduit, both can carry out explosion to layer of concrete smooth, can strengthen again the degree of depth that tapered pile inserts, improve stability.
The cone head part below of described tapered pile is provided with flat board.Flat board can be supported on layer of concrete, has limited tapered pile and has further fallen downwards, in the time of detonating charge, dull and stereotyped simultaneously broken, can increase the stroke that tapered pile falls, and is conducive to increase the compacting effect of main body to layer of concrete.
Described cone head part is provided with the centrum portion being connected with described base plate, and centrum portion is cylindrical or multiedge cylinder.The overall construction intensity of tapered pile can improve in centrum portion, guarantees support strength.
Described centrum portion and described back plate connections are provided with chamfered section.Chamfered section can easier extruded concrete layer, avoids occurring filling dead angle.
In described main body, be provided with dividing plate, between dividing plate and described base plate, be provided with the reserved stake hole of perforation, in reserved stake hole, be provided with movable tapered pile, on dividing plate, be provided with pressurization or vibration regulating device that driving activity tapered pile moves along reserved stake hole.Pressurization or vibration regulating device can extend the distance outside base plate by adjustment activity tapered pile, thereby increase activity tapered pile inserts the degree of depth of layer of concrete, further promotes the closely knit of layer of concrete.
Described base plate is broadening formation.Can increase the contact area between base plate and layer of concrete, improve accordingly frictional force, strengthen main body and sit the stability at the end.
Below described base plate, be provided with concrete cabin, this concrete cabin is surrounded and is formed by described base plate and at least one arch on-deck, wherein below described base plate, be provided with the arch on-deck support member that connects arch cabin end face, each arch on-deck is taken to build by piece stone and keystone and is formed, and is provided with keystone pulling pressing device between keystone and described base plate.Make keystone push adjacent piece stone by keystone pulling pressing device, thereby arch on-deck is fixed on arch on-deck support member, and keep arch on-deck to there is enough stability, thereby can in concrete cabin, store concrete or concrete grout, in the time that adjustment keystone pulling pressing device caves in arch on-deck, can fast piece stone and concrete be scattered downwards, be filled in uniformly on foundation surface, form layer of concrete, whereabouts scope is wide, and filling effect is good.
The vertical cross-section of described arch on-deck is presented arch or lower arch.Upper arch on-deck does not take side space under main body, is conducive to keep the hydrodynamic characterisitic of main body, and in lower arch on-deck, keystone is more easily released, and is conducive to accelerate concrete rate of release.
The groove that is respectively equipped with protuberance and coordinates with this protuberance on the relative two sides of described block of stone.By the cooperation of protuberance and adjacent block stone upper groove, improve the stability connecting between piece stone, further increase stressed surplus.
Another technical solution of the present invention is: a kind of mounting method of marine prefabricated platform, and it comprises the following steps: step 1: main body is towed to the default ground of construction place; Step 2: put down guide pile, by main body temporary supporting on ground; Step 3: put down movable enclosing mechanism, the ground enclosing of main body base plate below is got up; Step 4: the foundation surface by grouting water injection hole below base plate forms layer of concrete; Step 5: pack up guide pile, main body is sat at the end downwards, inserts in layer of concrete tapered pile.By guide pile by main body temporary supporting on ground, put down movable enclosing mechanism, by space screen between ground and base plate, can on ground, inject concrete grout fast by grouting water injection hole, thereby on ground, form layer of concrete, realize the quick levelling of ground, when packing up after guide pile, main body moves downward under self gravitation effect, tapered pile is inserted in layer of concrete, can arrange extruded concrete by tapered pile on the one hand, make it further closely knit and fully contact base plate, better support platform, tapered pile itself also can play the effect of support platform on the other hand.
In step 4, also comprise that adjusting keystone pulling pressing device caves in arch on-deck, is scattered the concrete in concrete cabin to be laid on the step that forms layer of concrete on foundation surface.
In step 5, on the layer of concrete by the explosive conduit in tapered pile below cone head part, explosive is set, after detonating charge, pack up guide pile, main body is sat at the end downwards, and tapered pile is inserted in layer of concrete.By explosive initiation dense concrete layer, and on layer of concrete, form quick-fried hole, further play closely knit effect, at the bottom of the quick seat of realization body, install.
In step 5, on the layer of concrete by the explosive conduit in tapered pile below cone head part, explosive is set, when detonating charge, pack up guide pile, main body is sat at the end downwards, and tapered pile is inserted in layer of concrete.Explosive initiation forms quick-fried hole, has strengthened tapered pile drop, makes platform sit the end quicker, and under effect of inertia, the degree of depth that tapered pile inserts layer of concrete is larger, and the stability of main body is stronger.
In step 5, pack up guide pile, main body is sat at the end downwards, and tapered pile is inserted in layer of concrete, on the layer of concrete by the explosive conduit in tapered pile below cone head part, explosive is set, detonating charge dense concrete layer.Make the layer of concrete of tapered pile below further closely knit by explosive initiation, shorten main body and sit the stabilization time at the end.
In step 5, pack up guide pile, main body is sat at the end downwards, and the flat board of cone head part below is sat the end on layer of concrete, on the layer of concrete by the explosive conduit in tapered pile below cone head part, explosive is set, and after detonating charge, tapered pile is inserted in layer of concrete.Can tamp in advance layer of concrete by flat board, the insertion of detonating charge and tapered pile is dense concrete layer further, further improves the main body stability at the seat end.
In step 5, also comprise by pressurization or vibration regulating device movable tapered pile is extended to outside base plate, in the time that main body is sat the end, make movable tapered pile insert the step in layer of concrete.In the time that main body is sat the end, movable tapered pile can insert in layer of concrete together with tapered pile, thereby the concrete of abundant dense extrusion periphery improves the main body stability at the seat end.
In step 5, be also included in the step that explosive is set and detonates below movable tapered pile.Further closely knit to layer of concrete by explosive initiation, can effectively shorten stabilization time of main body.
In step 5, being also included in after main body is sat behind the end makes movable tapered pile insert the step in layer of concrete by pressurization or vibration regulating device.By the insertion of movable tapered pile, can push the concrete of periphery, further dense concrete layer.
Advantage of the present invention is: main body can be sat the end by fast-descending under self gravitation effect, the filling effect of ground is better, tapered pile both can support the weight of whole platform, can also be in the time inserting extruded concrete layer, effectively increased main body and sat the stability at the end.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the embodiment of the present invention 1;
Accompanying drawing 2 is the mounting method schematic diagram of the embodiment of the present invention 1;
Accompanying drawing 3 is the mounting method schematic diagram of the embodiment of the present invention 1;
Accompanying drawing 4 is the structural representation of tapered pile in the embodiment of the present invention 2;
Accompanying drawing 5 is the mounting method schematic diagram of the embodiment of the present invention 2;
Accompanying drawing 6 is the mounting method schematic diagram of the embodiment of the present invention 2;
Accompanying drawing 7 is the structural representation of the embodiment of the present invention 3;
Accompanying drawing 8 is the structural representation of the embodiment of the present invention 4;
Accompanying drawing 9 is the structural representation of the embodiment of the present invention 5;
Accompanying drawing 10 is the mounting method schematic diagram of the embodiment of the present invention 5;
Accompanying drawing 11 is the mounting method schematic diagram of the embodiment of the present invention 6;
Accompanying drawing 12 is the mounting method schematic diagram of the embodiment of the present invention 6;
Accompanying drawing 13 is the mounting method schematic diagram of the embodiment of the present invention 7;
Accompanying drawing 14 is the structural representation of the embodiment of the present invention 8;
Accompanying drawing 15 is the structural representation of arch on-deck in the embodiment of the present invention 8;
Accompanying drawing 16 is piece stone and keystone syndeton schematic diagram in the embodiment of the present invention 8;
Accompanying drawing 17 is the structural representation of the embodiment of the present invention 9;
Accompanying drawing 18 is the structural representation of layer of concrete in the embodiment of the present invention 10;
Accompanying drawing 19 is the upward view of movable enclosing structure in the embodiment of the present invention 11;
Accompanying drawing 20 is for A-A in Figure 11 is to analysing and observe scheme of installation;
Accompanying drawing 21 is for A-A in Figure 11 is to analysing and observe scheme of installation;
1, main body, 2, base plate, 3, guide pile, 4, tapered pile, 5, movable enclosing structure, 6, grouting water injection hole, 7, ground, 8, explosive conduit, 9, charge tube, 10, explosive, 11, cone head part, 12, centrum portion, 13, chamfered section, 14, quick-fried hole, 15, dull and stereotyped, 16, dividing plate, 17, reserved stake hole, 18, movable tapered pile, 19, pressurization or vibration regulating device, 20, layer of concrete, 21, arch on-deck, 22, arch on-deck support member, 23, piece stone, 24, keystone, 25, keystone pulling pressing device, 26, protuberance, 27, groove, 28, layer of concrete, 29, concrete grout layer, 30, roller compacted concrete or latex concrete layer, 31, stripe board, 32, clamping plate, 33, concrete cabin.
The specific embodiment
Embodiment 1:
Consult Fig. 1, for the marine prefabricated platform of one, comprise the guide pile 3 being arranged in main body 1, in main body 1, be provided with the movable enclosing mechanism 5 for ground 7 below the base plate 2 of screen main body 1, outside the base plate 2 of main body 1, be provided with some tapered piles 4 vertical with the base plate 2 of main body 1, the cone head part 11 of each tapered pile 4 is to base plate 2 extensions of main body 1, and cone head part 11 is circular cone or polygonal pyramid, is provided with grouting water injection hole 6 on the base plate 2 of main body 1.
Consulting Fig. 2-3, is a kind of mounting method of marine prefabricated platform, and it comprises the following steps:
Step 1: utilize islands and reefs projection reef as fulcrum, main body 1 is towed to when the high water mark to the default ground of construction 7 places by hoist engine;
Step 2: put down guide pile 3, make the end contact ground 7 of guide pile 3, main body 1 temporary supporting, on ground 7, is now existed to gap between ground 7 and base plate 2;
Step 3: put down movable enclosing mechanism 5, get up from main body 1 outside by ground 7 screens of base plate 1 below;
Step 4: to concreting on the ground 7 of base plate 1 below, under the screen of movable enclosing mechanism 5, ground 7 surfaces below base plate 1 form layer of concrete 28 by grouting water injection hole 6;
Step 5: pack up guide pile 3, main body 1 is sat at the end downwards under gravity Action of Gravity Field, and tapered pile 4 is inserted in layer of concrete 28, tapered pile 4, can extruded concrete layer 28 in the time inserting, thereby carries out closely knit to it.
Main body 1 is sat at the end, and movable enclosing mechanism 5 can remove, and also can retain, and improves the stability against sliding of main body 1.
Embodiment 2:
Consult Fig. 4-6, for the marine prefabricated platform of another kind, comprise the guide pile 3 being arranged in main body 1, in main body 1, be provided with the movable enclosing mechanism 5 for ground 7 below the base plate 2 of screen main body 1, outside the base plate 2 of main body 1, be provided with some tapered piles 4 vertical with the base plate 2 of main body 1, the cone head part 11 of each tapered pile 4 is to base plate 2 extensions of main body 1, and cone head part 11 is circular cone or polygonal pyramid, is provided with grouting water injection hole 6 on the base plate 2 of main body 1.The hollow explosive conduit 8 that is provided with perforation in tapered pile 4, can penetrate charge tube 9 by explosive conduit 8, to explosive 10 on the layer of concrete 28 of cone head part 11 belows.
Consulting Fig. 5-6, is a kind of mounting method of marine prefabricated platform, and it comprises the following steps:
Step 1: utilize islands and reefs projection reef as fulcrum, main body 1 is towed to when the high water mark to the default ground of construction 7 places by hoist engine;
Step 2: put down guide pile 3, make the end contact ground 7 of guide pile 3, main body 1 temporary supporting, on ground 7, is now existed to gap between ground 7 and base plate 2;
Step 3: put down movable enclosing mechanism 5, get up from main body 1 outside by ground 7 screens of base plate 2 belows;
Step 4: to concreting on the ground 7 of base plate 1 below, under the screen of movable enclosing mechanism 5, ground 7 surfaces below base plate 1 form layer of concrete 28 by grouting water injection hole 6;
Step 5: first explosive conduit 8 in tapered pile 4 penetrates charge tube 9, to the layer of concrete 28 upper type explosives 10 of cone head part 11 belows, after detonating charge 10, can on layer of concrete 28, form quick-fried hole 14, can after detonating charge 11 or simultaneously, pack up guide pile 3, main body 1 is sat at the end downwards under gravity Action of Gravity Field, tapered pile 4 is inserted in layer of concrete 28, tapered pile 4 is in the time inserting, can extruded concrete layer 28, thereby carry out closely knit to it, can accelerate process at the bottom of the seat of main body 1 simultaneously, improve the stability of sitting at the end.
In addition, in step 5, can also first regain guide pile 3, when tapered pile 4 inserts layer of concrete 28 when interior, penetrate charge tube 9 by explosive conduit 8 again, to the layer of concrete 28 upper type explosives 10 of cone head part 11 belows, by detonating charge 10, layer of concrete 28 is extruded closely knit, impel tapered pile 4 to drive main body 1 to continue to fall, reduce main body 1 and sit the stabilization time at the end.
Embodiment 3,
Consult Fig. 7, for the marine prefabricated platform of one, comprise the guide pile 3 being arranged in main body 1, in main body 1, be provided with the movable enclosing mechanism 5 for ground 7 below the base plate 2 of screen main body 1, outside the base plate 2 of main body 1, be provided with some tapered piles 4 vertical with the base plate 2 of main body 1, the cone head part 11 of each tapered pile 4 is to base plate 2 extensions of main body 1, and cone head part 11 is circular cone or polygonal pyramid, is provided with grouting water injection hole 6 on the base plate 2 of main body 1.Other technologies feature is identical with embodiment 1, does not repeat them here.
Embodiment 4:
Consult Fig. 8, for the marine prefabricated platform of one, comprise the guide pile 3 being arranged in main body 1, in main body 1, be provided with the movable enclosing mechanism 5 for ground 7 below the base plate 2 of screen main body 1, outside the base plate 2 of main body 1, be provided with some tapered piles 4 vertical with the base plate 2 of main body 1, the cone head part 11 of each tapered pile 4 is to base plate 2 extensions of main body 1, and cone head part 11 is circular cone or polygonal pyramid, is provided with grouting water injection hole 6 on the base plate 2 of main body 1.In the present embodiment, cone head part 11 is connected with base plate 2 by centrum portion 12, and centrum portion 12 is cylinder or multiedge cylinder, and centrum portion 12 is provided with chamfered section 13 with base plate 2 junctions.Other technologies feature is identical with embodiment 1, does not repeat them here.
Embodiment 5:
Consult Fig. 9, for the marine prefabricated platform of one, comprise the guide pile 3 being arranged in main body 1, in main body 1, be provided with the movable enclosing mechanism 5 for ground 7 below the base plate 2 of screen main body 1, outside the base plate 2 of main body 1, be provided with the vertical tapered pile 4 of base plate 2 of some and described main body 1, the cone head part 11 of each tapered pile 4 is to base plate 2 extensions of main body 1, and cone head part 11 is circular cone or polygonal pyramid, is provided with grouting water injection hole 6 on the base plate 2 of main body 1.Cone head part 11 belows are provided with dull and stereotyped 15.
Consult Figure 10, the mounting method of this sea prefabricated platform, comprises the following steps:
Step 1: utilize islands and reefs projection reef as fulcrum, main body 1 is towed to when the high water mark to the default ground of construction 7 places by hoist engine;
Step 2: put down guide pile 3, make the end contact ground 7 of guide pile 3, main body 1 temporary supporting, on ground 7, is now existed to gap between ground 7 and base plate 2;
Step 3: put down movable enclosing mechanism 5, get up from main body 1 outside by ground 7 screens of base plate 2 belows;
Step 4: to concreting on the ground 7 of base plate 1 below, under the screen of movable enclosing mechanism 5, ground 7 surfaces below base plate 1 form layer of concrete 28 by grouting water injection hole 6;
Step 5: pack up guide pile 3, main body 1 is sat at the end downwards under gravity Action of Gravity Field, the flat board 15 of tapered pile 4 belows is pressed on layer of concrete 28, layer of concrete 28 is tamped, limited the insertion of tapered pile 4 simultaneously, now penetrate charge tube 9 from the explosive conduit 8 in tapered pile 4, to the layer of concrete 28 upper type explosives 10 of cone head part 11 belows, detonating charge 10 rear plate 16 fragmentations, can on layer of concrete 28, form quick-fried hole 14 simultaneously, under main body 1 self gravitation effect, tapered pile 4 inserts in layer of concrete 28, in the time inserting, can make it closely knit by extruded concrete layer 28, the main body 1 falling can also be tamped layer of concrete 28 again, thereby improve the stability that main body 1 is sat the end.
Embodiment 6:
Consult Figure 11-12, for the marine prefabricated platform of one, comprise the guide pile 3 being arranged in main body 1, in main body 1, be provided with the movable enclosing mechanism 5 for ground 7 below the base plate 2 of screen main body 1, outside the base plate 2 of main body 1, be provided with some tapered piles 4 vertical with the base plate 2 of main body 1, the cone head part 11 of each tapered pile 4 is to base plate 2 extensions of main body 1, and cone head part 11 is circular cone or polygonal pyramid, is provided with grouting water injection hole 6 on the base plate 2 of main body 1.Its base plate 2 is broadening formation.
This sea prefabricated platform is in the time sitting the end, the both sides of its base plate 2 also can fully contact layer of concrete 28, have increased base plate 2 and the area that layer of concrete 28 contacts, and have improved frictional force, in the time sitting the end, also can fully push rammed concrete layer 28 simultaneously, improve the stability of sitting the end.Other technologies feature is identical with embodiment 1, does not repeat them here.
Embodiment 7:
Consult Figure 13, for the marine prefabricated platform of one, comprise the guide pile 3 being arranged in main body 1, in main body 1, be provided with the movable enclosing mechanism 5 for ground 7 below the base plate 2 of screen main body 1, outside the base plate 2 of main body 1, be provided with some tapered piles 4 vertical with the base plate 2 of main body 1, the cone head part 11 of each tapered pile 4 is to base plate 2 extensions of main body 1, and cone head part 11 is circular cone or polygonal pyramid, is provided with grouting water injection hole 6 on the base plate 2 of main body 1.Its base plate 2 is broadening formation.In main body 1, be provided with dividing plate 16, between dividing plate 16 and base plate 2, be provided with the reserved stake hole 17 of perforation, in reserved stake hole 17, be provided with movable tapered pile 18, on dividing plate 16, be provided with pressurization or the vibration regulating device 19 that move in reserved stake hole 17,18 edges of driving activity taper.Other structures are identical with embodiment 1, do not repeat them here.When this sea prefabricated platform is in the time sitting the end, the length that can extend to outside base plate 2 by pressurization or vibration regulating device 19 adjusting activity tapered piles 18, after sitting the end, main body 1 inserts in layer of concrete 28, thereby layer of concrete 28 is further carried out to dense extrusion, after complete operation, movable tapered pile 18 is recoverable to, and also can continue to keep insertion state, plays effect fixing and that support.Or before main body 1 is sat the end, first by pressurization or vibration regulating device 19, movable tapered pile 18 is extended to outside base plate 2, in the time that main body 1 is sat the end, insert in layer of concrete 28 together with tapered pile 4.Can also on the layer of concrete 28 below movable tapered pile 18, explosive be set, after detonating, form quick-fried hole, make the insertion of movable tapered pile 18 apart from increasing, at the bottom of being conducive to make the quick seat of main body 1.
Embodiment 8:
Consult Figure 14-16, for the marine prefabricated platform of one, comprise the guide pile 3 being arranged in main body 1, in main body 1, be provided with the movable enclosing mechanism 5 for ground 7 below the base plate 2 of screen main body 1, outside the base plate 2 of main body 1, be provided with some tapered piles 4 vertical with the base plate 2 of main body 1, the cone head part 11 of each tapered pile 4 is to base plate 2 extensions of main body 1, and cone head part 11 is circular cone or polygonal pyramid, is provided with grouting water injection hole 6 on the base plate 2 of main body 1.Below base plate 2, be provided with concrete cabin 33, this concrete cabin 33 is surrounded and is formed by base plate 2 and at least one arch on-deck 21, wherein below base plate 2, be provided with the arch on-deck support member 22 that connects arch on-deck 21 ends, each arch on-deck 21 is taken to build by piece stone 23 and keystone 24 and is formed, and is provided with keystone pulling pressing device 25 between keystone 24 and base plate 2.The vertical cross-section of arch on-deck 21 is presented arch or lower arch.Upper arch on-deck does not take side space under main body, is conducive to keep the hydrodynamic characterisitic of main body, and in lower arch on-deck, keystone is more easily released, and is conducive to accelerate concrete rate of release.The groove 27 that is respectively equipped with protuberance 26 and coordinates with this protuberance 26 on the relative two sides of piece stone 23.Can carry concrete powder by concrete cabin 33, in the time sitting the end, pass through grouting water injection hole 6 to the interior water filling in concrete cabin 33, form concrete, adjust keystone pulling pressing device 25 arch on-deck 21 is caved in, the concrete in concrete cabin 33 is scattered and is laid on the upper layer of concrete 28 that forms in ground 1 surface.
Other technologies feature is identical with embodiment 1, does not repeat them here.
Embodiment 9:
Consult Figure 17, for the marine prefabricated platform of one, comprise the guide pile 3 being arranged in main body 1, in main body 1, be provided with the movable enclosing mechanism 5 for ground 7 below the base plate 2 of screen main body 1, outside the base plate 2 of main body 1, be provided with some tapered piles 4 vertical with the base plate 2 of main body 1, the cone head part 11 of each tapered pile 4 is to base plate 2 extensions of main body 1, and cone head part 11 is circular cone or polygonal pyramid, is provided with grouting water injection hole 6 on the base plate 2 of main body 1.Below base plate 2, be provided with concrete cabin 33, this concrete cabin 33 is surrounded and is formed by base plate 2 and at least one arch on-deck 21, wherein below base plate 2, be provided with the arch on-deck support member 22 that connects arch on-deck 21 ends, each arch on-deck 21 is taken to build by piece stone 23 and keystone 24 and is formed, and is provided with keystone pulling pressing device 25 between keystone 24 and base plate 2.Its base plate 2 is broadening formation.Other technologies feature is identical with embodiment 1, does not repeat them here.
Embodiment 10:
Consulting Figure 18, is the structure of the layer of concrete 28 of marine prefabricated platform, and it arranges below main body 1, comprises outer field concrete grout layer 29 and is positioned at roller compacted concrete or the latex concrete layer 30 of internal layer.Also can all use concrete grout 29 to build layer of concrete 28, or use roller compacted concrete or latex concrete to build layer of concrete 28.Other technologies feature is identical with embodiment 1, does not repeat them here.
Embodiment 11:
Consult Figure 19-21, for a kind of movable enclosing structure of marine prefabricated platform, this movable enclosing mechanism 5 comprises stripe board 31 and is set in parallel in two clamping plate 32 on main body 1 side, wherein stripe board 31 is vertically located between clamping plate 32 and the sidewall of main body 1, and can move up and down along main body 1 sidewall.
In the time that main body 1 moves to default ground 7 place, put down stripe board 31, make its contact ground 7 surfaces, bottom, thereby ground 7 screens of main body 1 base plate 2 belows are got up, concreting forms layer of concrete 28 therein.In the present embodiment, can use the stroke of the mode control stripe board 31 of adjusting clamping plate 32 and main body 1 sidewall spacers, the whereabouts stroke of the controlling organization adjustment stripe board 31 such as draw-in groove can also be set.In addition, for the larger situation of ground 7 surface undulations, can also adjust the width of stripe board 31, thereby form more closely knit enclosing.Other technologies feature is identical with embodiment 1, does not repeat them here.
Above-listed detailed description is for the illustrating of one of the present invention possible embodiments, and this embodiment is not in order to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the scope of the claims of this case.
Claims (21)
1. a marine prefabricated platform, comprise the guide pile being arranged in main body, it is characterized in that: in described main body, be provided with the movable enclosing mechanism for ground below main body base plate described in enclosing, be provided with the vertical tapered pile of some and described main body base plate outward at the base plate of described main body, the cone head part of each tapered pile is to described main body base plate extension, and cone head part is circular cone or polygonal pyramid, is provided with grouting water injection hole on the base plate of described main body.
2. the marine prefabricated platform of one according to claim 1, it is characterized in that: described movable enclosing mechanism comprises the clamping plate and the stripe board that are arranged on described main body side, wherein stripe board is vertically located between clamping plate and described main body wall, and can move up and down along described main body wall.
3. the marine prefabricated platform of one according to claim 1, is characterized in that: the hollow explosive conduit that is provided with perforation in described tapered pile.
4. the marine prefabricated platform of one according to claim 1, is characterized in that: the cone head part below of described tapered pile is provided with flat board.
5. the marine prefabricated platform of one according to claim 1, is characterized in that: described cone head part is provided with the centrum portion being connected with described base plate, centrum portion is cylindrical or multiedge cylinder.
6. the marine prefabricated platform of one according to claim 4, is characterized in that: described centrum portion and described back plate connections are provided with chamfered section.
7. the marine prefabricated platform of one according to claim 1, it is characterized in that: in described main body, be provided with dividing plate, between dividing plate and described base plate, be provided with the reserved stake hole of perforation, in reserved stake hole, be provided with movable tapered pile, on dividing plate, be provided with pressurization or vibration regulating device that driving activity tapered pile moves along reserved stake hole.
8. according to the marine prefabricated platform of the one described in claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that: described base plate is broadening formation.
9. the marine prefabricated platform of one according to claim 1, it is characterized in that: below described base plate, be provided with concrete cabin, this concrete cabin is surrounded and is formed by described base plate and at least one arch on-deck, wherein below described base plate, be provided with the arch on-deck support member that connects arch cabin end face, each arch on-deck is taken to build by piece stone and keystone and is formed, and is provided with keystone pulling pressing device between keystone and described base plate.
10. the marine prefabricated platform of one according to claim 9, is characterized in that: the vertical cross-section of described arch on-deck is presented arch or lower arch.
The marine prefabricated platform of 11. one according to claim 9, is characterized in that: the groove that is respectively equipped with protuberance and coordinates with this protuberance on the relative two sides of described block of stone.
The mounting method of 12. 1 kinds of marine prefabricated platforms as claimed in claim 1, is characterized in that: it comprises the following steps: step 1: main body is towed to the default ground of construction place; Step 2: put down guide pile, by main body temporary supporting on ground; Step 3: put down movable enclosing mechanism, the ground enclosing of main body base plate below is got up; Step 4: the foundation surface by grouting water injection hole below base plate forms layer of concrete; Step 5: pack up guide pile, main body is sat at the end downwards, inserts in layer of concrete tapered pile.
The mounting method of 13. a kind of marine prefabricated platforms according to claim 12, it is characterized in that: in step 4, also comprise that adjusting keystone pulling pressing device caves in arch on-deck, is scattered the concrete in concrete cabin to be laid on the step that forms layer of concrete on foundation surface.
The mounting method of 14. a kind of marine prefabricated platforms according to claim 12, it is characterized in that: in step 5, on layer of concrete by the explosive conduit in tapered pile below cone head part, explosive is set, after detonating charge, pack up guide pile, main body is sat at the end downwards, and tapered pile is inserted in layer of concrete.
The mounting method of 15. a kind of marine prefabricated platforms according to claim 12, it is characterized in that: in step 5, on layer of concrete by the explosive conduit in tapered pile below cone head part, explosive is set, when detonating charge, pack up guide pile, main body is sat at the end downwards, and tapered pile is inserted in layer of concrete.
The mounting method of 16. a kind of marine prefabricated platforms according to claim 12, it is characterized in that: in step 5, pack up guide pile, main body is sat at the end downwards, tapered pile is inserted in layer of concrete, on layer of concrete by the explosive conduit in tapered pile below cone head part, explosive is set, detonating charge dense concrete layer.
The mounting method of 17. a kind of marine prefabricated platforms according to claim 12, it is characterized in that: in step 5, pack up guide pile, main body is sat at the end downwards, the flat board of cone head part below is sat the end on layer of concrete, on layer of concrete by the explosive conduit in tapered pile below cone head part, explosive is set, after detonating charge, tapered pile is inserted in layer of concrete.
18. according to the mounting method of a kind of marine prefabricated platform described in claim 12 or 13 or 14 or 15 or 16 or 17, it is characterized in that: in step 5, also comprise by pressurization or vibration regulating device movable tapered pile is extended to outside base plate, in the time that main body is sat the end, make movable tapered pile insert the step in layer of concrete.
The mounting method of 19. a kind of marine prefabricated platforms according to claim 18, is characterized in that: in step 5, be also included in the step that explosive is set and detonates below movable tapered pile.
20. according to the mounting method of a kind of marine prefabricated platform described in claim 12 or 13 or 14 or 15 or 16 or 17, it is characterized in that: in step 5, be also included in after main body is sat behind the end and make movable tapered pile insert the step in layer of concrete by pressurization or vibration regulating device.
The mounting method of 21. a kind of marine prefabricated platforms according to claim 20, is characterized in that: in step 5, be also included in the step that explosive is set and detonates below movable tapered pile.
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| CN201410111008.5A CN103911978B (en) | 2014-03-24 | 2014-03-24 | A kind of marine prefabricated platform and installation method thereof |
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| CN201410111008.5A CN103911978B (en) | 2014-03-24 | 2014-03-24 | A kind of marine prefabricated platform and installation method thereof |
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| CN103911978B CN103911978B (en) | 2016-08-17 |
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| CN103911978B (en) | 2016-08-17 |
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