CN102168418A - Construction method of offshore elevated platform - Google Patents
Construction method of offshore elevated platform Download PDFInfo
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- CN102168418A CN102168418A CN 201110068032 CN201110068032A CN102168418A CN 102168418 A CN102168418 A CN 102168418A CN 201110068032 CN201110068032 CN 201110068032 CN 201110068032 A CN201110068032 A CN 201110068032A CN 102168418 A CN102168418 A CN 102168418A
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- scaoffold
- tire
- base
- guiding
- supporting leg
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Abstract
The invention discloses a construction method of an offshore elevated platform, which comprises the steps: A. a plurality of groups of first bases are welded around the elevated platform, wherein each group comprises three continuously arranged first bases; B. a second base is fixedly connected to the first base in the middle of each group, another two first bases are fixedly connected with guiding support legs, the top ends of the guiding support legs are fixedly connected with base clamps, and the guiding support legs are further fixed through support leg gland structures; C. the support legs of the elevated platform are respectively inserted into the sea floor along the two base clamps and the arc parts of the second bases, and the support legs of the elevated platform are respectively fixed through guiding pressing plates; D. pier bases are inserted into the sea floor by sections in sequence in the middle area surrounded by the three legs of the elevated platform; and E. a drilling machine is fixed on the elevated platform and used for drilling the seafloor rock mass and the sea sludge layer at the bottom end of the pier bases through, then the impurities are pumped out through a sludge pump, and finally reinforcing steel bars are arranged into the pier bases, and the concrete is cast.
Description
Technical field
The present invention relates to offshore construction operation field, particularly a kind of marine scaoffold job practices.
Background technology
Along with The development in society and economy, building over strait becomes the major issue of benefiting the people's livelihood gradually.In the prior art, building over strait mainly contains two kinds: a kind of is seabed tunnel; Another kind is a bridge spanning the sea.Wherein, the construction of bridge spanning the sea, owing to there is not the support on land, progress is slow, cost is high.
Summary of the invention
The objective of the invention is: provide one can make the construction process of bridge spanning the sea the same with land convenient and swift at the scaoffold of sea operate as normal.
The technical scheme that adopts: a kind of marine scaoffold job practices is provided, may further comprise the steps:
The first step: weld some groups first bases around scaoffold, every group comprises three continuously arranged first bases.
Second step: fixedly connected second base on first base in every group of centre position, fixedly connected guiding supporting leg on two other first base, fixedly connected with the base clamp in described guiding supporting leg top; The guiding supporting leg is further fixing by the supporting leg gland structure.
The 3rd step: insert the scaoffold supporting leg to the seabed respectively along two base clamps, circular arc place, second end; And by the guiding pressing plate scaoffold supporting leg is fixed respectively.
The 4th step: the zone line merogenesis that surrounds at three scaoffold supporting legs inserts the bridge pier tire to the seabed successively; Bridge pier tire periphery is respectively by two guide strips and guide runner and scaoffold supporting leg relative fixed.
The 5th step: fixing auger on scaoffold, auger is got through the marine rock layer and the seabed mud layer of bridge pier tire bottom, by slush pump impurity is extracted out then, puts into reinforcing bar and fluid concrete to the bridge pier tire at last.
Wherein, described scaoffold bottom is provided with guide pipe, and the axis of guide on the case that drifts along inserts guide pipe, and the scaoffold and the case that drifts along can be relatively moved; When scaoffold needs lifting, earlier the axis of guide is fixed with respect to guide pipe, and by Water filling valve to case water filling or the draining of drifting along, regulate the scaoffold lifting.
Wherein, be fixed with the steel pipe leg that inserts the seabed on described second base, steel pipe leg top is provided with the guiding awl, and the bridge pier tire can insert the seabed along the steel pipe leg, guarantees the stability of bridge pier tire.
Wherein, described bridge pier tire top is provided with boring guiding tire, and the drilling rod of auger carries out bore operation by the pilot hole of boring guiding tire, makes the auger accurate positioning.
Useful technique effect: scaoffold is built convenient, does not have technical difficulty, and general little dockyard just can be built.Scaoffold exceeds about 4 meters on seawater plane, can not be subjected to stormy waves influence and every day twice morning and evening tides impact.Constructor on the platform is as operation is safe and efficient on land.
Description of drawings
Fig. 1 is the scaoffold vertical view of the marine scaoffold job practices of the embodiment of the invention.
Fig. 2 is a B-B sectional drawing among Fig. 1.
Fig. 3 is the octahedra bridge pier tire structure chart of the marine scaoffold job practices of the embodiment of the invention.
Fig. 4 is the cylinder bridge pier tire structure chart of the marine scaoffold job practices of the embodiment of the invention.
Fig. 5 is the second base front view of the marine scaoffold job practices of the embodiment of the invention.
Fig. 6 is second base vertical view of the marine scaoffold job practices of the embodiment of the invention.
Fig. 7 is the first base front view of the marine scaoffold job practices of the embodiment of the invention.
Fig. 8 is the first base lateral view of the marine scaoffold job practices of the embodiment of the invention.
Fig. 9 is the guiding supporting leg front view of the marine scaoffold job practices of the embodiment of the invention.
Figure 10 is the guiding supporting leg lateral view of the marine scaoffold job practices of the embodiment of the invention.
Figure 11 is supporting leg gland structure (compressing tablet) view of the marine scaoffold job practices of the embodiment of the invention.
Figure 12 is supporting leg gland structure (base) view of the marine scaoffold job practices of the embodiment of the invention.
Figure 13 is the boring guiding tire front view of the marine scaoffold job practices of the embodiment of the invention.
Figure 14 is the boring guiding sidewall view of the marine scaoffold job practices of the embodiment of the invention.
Figure 15 is the boring clamp base front view of the marine scaoffold job practices of the embodiment of the invention.
Figure 16 is the boring clamp base lateral view of the marine scaoffold job practices of the embodiment of the invention.
Figure 17 is the boring clamp gland front view of the marine scaoffold job practices of the embodiment of the invention.
Figure 18 is the boring clamp gland lateral view of the marine scaoffold job practices of the embodiment of the invention.
Figure 19 is the guiding pressing plate front view of the marine scaoffold job practices of the embodiment of the invention.
Figure 20 is the guiding pressing plate lateral view of the marine scaoffold job practices of the embodiment of the invention.
Figure 21 is the guide strip front view of the marine scaoffold job practices of the embodiment of the invention.
Figure 22 is the guide strip lateral view of the marine scaoffold job practices of the embodiment of the invention.
Figure 23 is the guide runner front view of the marine scaoffold job practices of the embodiment of the invention.
Figure 24 is the guide runner lateral view of the marine scaoffold job practices of the embodiment of the invention.
The specific embodiment
The present invention is described in detail below in conjunction with drawings and Examples.
Accompanying drawing sign: 1, scaoffold; 2, scaoffold supporting leg; 3, bridge pier tire; 4, elevator chamber; 5, the axis of guide; 6, guide pipe; 7, first base; 8, second base; 9, boring guiding tire; 10, guiding centrum; 11, steel pipe leg; 12, Water filling valve; 13, base clamp; 14, guide strip; 15, guide runner; 16, guiding pressing plate; 17, guiding supporting leg; 18,19, supporting leg gland structure; 20, drilling rod clamp base; 21, drilling rod clamp gland.
Marine scaoffold job practices in the present embodiment may further comprise the steps:
The first step: weld some groups first bases 7 around scaoffold 1, every group comprises three continuously arranged first bases 7.Wherein, the structure of first base 7 such as Fig. 7, shown in Figure 8.
Second step: fixedly connected second base 8 on first base 7 in every group of centre position, fixedly connected guiding supporting leg 17 on two other first base 7, fixedly connected with base clamp 13 in described guiding supporting leg 17 tops; Guiding supporting leg 17 is further fixing by supporting leg gland structure 18,19.Wherein, the structure of second base 8 such as Fig. 5, shown in Figure 6, structure such as Fig. 9, shown in Figure 10 of guiding supporting leg 17, the structure of supporting leg gland structure 18,19 such as Figure 11, shown in Figure 12.
The 3rd step: insert scaoffold supporting leg 2 to the seabed respectively along two base clamps 13, second base, 8 circular arc places; And it is by guiding pressing plate 16 that scaoffold supporting leg 2 is fixing respectively.Wherein, structure such as Figure 19, shown in Figure 20 of guiding pressing plate 16.
The 4th step: the zone line merogenesis that surrounds at three scaoffold supporting legs 2 inserts bridge pier tire 3 to the seabed successively; Described bridge pier tire 3 can be that cylindrical tire also can be polygon tire (with reference to Fig. 3, Fig. 4); Bridge pier tire 3 peripheries are respectively by two guide strips 14 and guide runner 15 and scaoffold supporting leg 2 relative fixed.Wherein, the structure of guide strip 14 such as Figure 21, shown in Figure 22, the structure of guide runner 15 is shown in Figure 23,24.
The 5th step: fixing auger on scaoffold 1, auger is got through the marine rock layer and the seabed mud layer of bridge pier tire 3 bottoms, by slush pump impurity is extracted out then, puts into reinforcing bar and fluid concrete to bridge pier tire 3 at last.Wherein, the drilling rod of auger is downwards deeply and when upwards promoting, and drilling rod clamp (the drilling rod clamp is made up of drilling rod clamp base 20 and drilling rod clamp gland 21, as Figure 15-shown in Figure 180) is installed on auger; When the drilling rod clamp tightens, drilling rod can be unloaded or on connect, when unclamping, drilling rod just can promote and down go deep into operation.
The vertical view of the scaoffold structure after the establishment as shown in Figure 1.
With reference to Fig. 2, described scaoffold 1 bottom is provided with guide pipe 6, and the axis of guide 5 on the case 4 that drifts along inserts guide pipe 6, and the scaoffold 1 and the case 4 that drifts along can be relatively moved; When scaoffold 1 needs lifting, earlier that the axis of guide 5 is fixing with respect to guide pipe 6, and by Water filling valve 12 to case 4 water fillings or the draining of drifting along, regulate scaoffold 1 lifting.
With reference to Fig. 1, be fixed with the steel pipe leg 11 that inserts the seabed on described second base 8, steel pipe leg 11 tops are provided with guiding awl 10, and bridge pier tire 3 can insert the seabed along steel pipe leg 11, guarantees the stability of bridge pier tire 3.
With reference to Fig. 2, described bridge pier tire 3 tops are provided with boring guiding tire 9, and the drilling rod of auger carries out bore operation by the pilot hole of boring guiding tire 9, makes the auger accurate positioning.Wherein, the structure of guiding tire 9 is shown in Figure 13,14.After first hole drill arrived requirement to the rock stratum certain depth, this drilling rod of striding the band drill bit can elevate, and again to second hole, first hole draws up impurity come with slush pump.With tire programmed reinforcing bar is lowered at last, adopts the method for the construction bridge of applicant " Bi Chenghui ", the patent No. " 200910187866.7 ", " 2010101170228 ", " 2010101523817 " to build bridge spanning the sea (comprising highway and railway bilayer) then.
Above content be in conjunction with optimal technical scheme to further describing that the present invention did, can not assert that the concrete enforcement of invention only limits to these explanations.Concerning the general technical staff of the technical field of the invention, under the prerequisite that does not break away from design of the present invention, can also make simple deduction and replacement, all should be considered as protection scope of the present invention.
Claims (4)
1. marine scaoffold job practices may further comprise the steps:
The first step: weld some groups first bases (7) all around at scaoffold (1), every group comprises three continuously arranged first bases (7);
Second step: first base (7) in every group of centre position is gone up fixedly connected second base (8), and two other first base (7) is gone up fixedly connected guiding supporting leg (17), fixedlys connected with base clamp (13) in described guiding supporting leg (17) top; Guiding supporting leg (17) is further fixing by supporting leg gland structure (18,19);
The 3rd step: insert scaoffold supporting leg (2) to the seabed respectively along two base clamps (13), second base (8) circular arc place; And it is by guiding pressing plate (16) that scaoffold supporting leg (2) is fixing respectively;
The 4th step: the zone line merogenesis that surrounds at three scaoffold supporting legs (2) inserts bridge pier tire (3) to the seabed successively; Bridge pier tire (3) periphery is respectively by two guide strips (14) and guide runner (15) and scaoffold supporting leg (2) relative fixed;
The 5th step: go up fixedly auger at scaoffold (1), auger is got through the marine rock layer and the seabed mud layer of bridge pier tire (3) bottom, by slush pump impurity is extracted out then, puts into reinforcing bar and fluid concrete to bridge pier tire (3) at last.
2. marine scaoffold job practices according to claim 1, it is characterized in that, described scaoffold (1) bottom is provided with guide pipe (6), and the axis of guide (5) on the case that drifts along (4) inserts guide pipe (6), and the scaoffold (1) and the case (4) that drifts along can be relatively moved; When scaoffold (1) when needing lifting, earlier that the axis of guide (5) is fixing with respect to guide pipe (6), and by Water filling valve (12) to the case that drifts along (4) water filling or draining, the lifting of adjusting scaoffold (1).
3. marine scaoffold job practices according to claim 1, it is characterized in that, be fixed with the steel pipe leg (11) that inserts the seabed on described second base (8), steel pipe leg (11) top is provided with guiding awl (10), bridge pier tire (3) can insert the seabed along steel pipe leg (11), guarantees the stability of bridge pier tire (3).
4. marine scaoffold job practices according to claim 1, it is characterized in that, described bridge pier tire (3) top is provided with boring guiding tire (9), and the drilling rod of auger carries out bore operation by the pilot hole of boring guiding tire (9), makes the auger accurate positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100680321A CN102168418B (en) | 2011-03-22 | 2011-03-22 | Construction method of offshore elevated platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100680321A CN102168418B (en) | 2011-03-22 | 2011-03-22 | Construction method of offshore elevated platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102168418A true CN102168418A (en) | 2011-08-31 |
| CN102168418B CN102168418B (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100680321A Expired - Fee Related CN102168418B (en) | 2011-03-22 | 2011-03-22 | Construction method of offshore elevated platform |
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| CN (1) | CN102168418B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4729695A (en) * | 1985-06-19 | 1988-03-08 | Saipem, S.P.A. | Process for the installation of the enbloc superstructure of an offshore platform, and equipment for carrying it practically |
| US4822212A (en) * | 1987-10-28 | 1989-04-18 | Amoco Corporation | Subsea template and method for using the same |
| CN1780962A (en) * | 2003-02-28 | 2006-05-31 | 默代克国际有限公司 | Method of installation of a tension leg platform |
| CN101781887A (en) * | 2009-12-30 | 2010-07-21 | 天津市海王星海上工程技术有限公司 | Overhang installation method for upper structure of offshore platform |
| CN101812836A (en) * | 2009-02-23 | 2010-08-25 | 何富荣 | Construction platform of hydraulic plug board on sea |
-
2011
- 2011-03-22 CN CN2011100680321A patent/CN102168418B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4729695A (en) * | 1985-06-19 | 1988-03-08 | Saipem, S.P.A. | Process for the installation of the enbloc superstructure of an offshore platform, and equipment for carrying it practically |
| US4822212A (en) * | 1987-10-28 | 1989-04-18 | Amoco Corporation | Subsea template and method for using the same |
| CN1780962A (en) * | 2003-02-28 | 2006-05-31 | 默代克国际有限公司 | Method of installation of a tension leg platform |
| CN101812836A (en) * | 2009-02-23 | 2010-08-25 | 何富荣 | Construction platform of hydraulic plug board on sea |
| CN101781887A (en) * | 2009-12-30 | 2010-07-21 | 天津市海王星海上工程技术有限公司 | Overhang installation method for upper structure of offshore platform |
Non-Patent Citations (2)
| Title |
|---|
| 《施工技术》 20090118 李建洪等 杭州湾跨海大桥海中平台钢结构施工技术 18-21 1-4 第38卷, 第1期 2 * |
| 《港工技术》 20100215 徐斯林等 海上浅覆盖层灌注型嵌岩桩钻孔平台搭设 36-38 1-4 第47卷, 第1期 2 * |
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| CN102168418B (en) | 2012-07-25 |
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Granted publication date: 20120725 Termination date: 20130322 |