CN102101629B - Hierarchical synchronous hydraulic jacking process for large-tonnage ocean engineering structure - Google Patents
Hierarchical synchronous hydraulic jacking process for large-tonnage ocean engineering structure Download PDFInfo
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- CN102101629B CN102101629B CN 200910243305 CN200910243305A CN102101629B CN 102101629 B CN102101629 B CN 102101629B CN 200910243305 CN200910243305 CN 200910243305 CN 200910243305 A CN200910243305 A CN 200910243305A CN 102101629 B CN102101629 B CN 102101629B
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Abstract
The invention discloses a hierarchical synchronous hydraulic jacking process for a large-tonnage ocean engineering structure. The process comprises the following steps of: 1, arranging a plurality of hydraulic jacks and a plurality of temporary protective supports below the structure and connecting a synchronous oil pump with the hydraulic jacks by using oil pipes; 2, controlling the plurality of hydraulic jacks to simultaneously jack an oil cylinder through the synchronous oil pump; 3, arranging cushion blocks below the plurality of temporary supports; 4, arranging cushion blocks below the hydraulic jacks; 5, retracting the hydraulic jacks into the oil cylinder; 6, arranging the cushion blocks below the hydraulic jacks again; 7, repeating the steps 2 to 6 until the structure is jacked to a proper height; and 8, jacking the structure to remove the cushion blocks below the temporary supports after a transport vehicle enters the structure, and connecting the temporary supports of the same height below the structure. The process has lower requirement on space around the large-tonnage ocean engineering structure; the site utilization ratio is improved; meanwhile, the lifting cost of the large-tonnage ocean engineering structure is reduced; and the construction period of the large-tonnage ocean engineering structure is shortened.
Description
Technical field
The present invention relates to the lifting process of large-tonnage works, relate in particular to a kind of large-tonnage ocean engineering structure classification synchronous hydraulic jacking technique.Belong to the Offshore Engineering field.
Background technology
In the offshore oil development engineering, need to build the various platforms such as oil production platform, accommodation platform, central processing platform at sea.Platform general main comprising: ocean engineering chunk, the ocean engineering structure such as supporting construction-jacket, single-point under water.These ocean engineering structures generally first carry out prefabricated by land, then, then transport to marine the installation.These ocean engineering structures usually, adopt lifting operation in prefabricated installation process.
Along with developing rapidly of ocean engineering construction, the volume and weight of ocean engineering structure is also in continuous increase, as: the deck plate in the ocean engineering chunk is in prefabricated process, need to set up scaffold at build the side, to set up scaffold work amount and facilitate personnel to construct in order to reduce, the deck plate upper surface apart from the ground general control in 1700-1900 millimeter scope, but the lower surface terrain clearance of deck plate generally in 1200 millimeters, so just makes on-the-spot flat truck can not directly enter bottom deck plate.After deck plate is built prefabricated completing, need to adopt crane that it is lifted on flat truck.The method major defect of this employing crane lifting deck plate is as follows:
1. crane resources is relatively nervous, and uses crane cost very high;
2. crane lifting efficient is low, and the deck plate production cycle is increased, and has increased laid down cost;
3. crane moves needs certain space, and large-tonnage works surrounding space is had certain requirement, has reduced the utilization of area rate;
4. crane lifting is subjected to the impact of center of gravity uncertain factor, has certain potential safety hazard.
Summary of the invention
Main purpose of the present invention is to overcome the above-mentioned shortcoming that existing technique exists, and provide a kind of large-tonnage ocean engineering structure classification synchronous hydraulic jacking technique, its lifting process is simple, convenient, and the requirement to large-tonnage ocean engineering structure surrounding space is lower, has improved the utilization of area rate; Simultaneously, shorten the production cycle of large-tonnage ocean engineering structure, reduced the lifting cost of large-tonnage ocean engineering structure.
The objective of the invention is to be realized by following technical scheme:
1, a kind of large-tonnage ocean engineering structure classification synchronous hydraulic jacking technique is characterized in that: adopt following steps:
The first step: be evenly arranged several hydraulic jacks and the support of several temporary protections below works, and connect synchronous oil pump and hydraulic jack by oil pipe;
Second step: synchronous several hydraulic jacks of oil pump control are jacking cylinder simultaneously;
The 3rd step: place cushion block below several temporary supportings;
The 4th step: place cushion block below hydraulic jack;
The 5th step: hydraulic jack retraction oil cylinder;
The 6th step: again place jacking cushion block below hydraulic jack;
The 7th step: repeat above-mentioned second step to the six step by step rapid until jacking is fit to the transport trolley entry altitude;
The 8th step: after transport trolley entered works, the jack-up works removed the cushion block below temporary supporting, simultaneously, connected the temporary supporting of equal height below works.
Before described second step carries out, first carry out pre-jacking, works can fully be contacted with all hydraulic jack, stressed even during with assurance hydraulic jack classification jacking.
Beneficial effect of the present invention: the present invention requires lower to large-tonnage ocean engineering structure surrounding space, improved the utilization of area rate; Simultaneously, shorten the production cycle of large-tonnage ocean engineering structure, reduced the lifting cost of large-tonnage ocean engineering structure.The present invention is simple, convenient, and expense is low; Lifting process safety, stable is affected by center of gravity and labile factor less.
Description of drawings:
Fig. 1 is that Lifting Equipment of the present invention is arranged schematic diagram.
Fig. 2 is that Lifting Equipment of the present invention is arranged local enlarged diagram.
Fig. 3 is jack cylinder of the present invention jacking simultaneously schematic diagram.
Fig. 4 places the cushion block schematic diagram below temporary supporting of the present invention.
Fig. 5 places the cushion block schematic diagram below jack of the present invention.
Fig. 6 is jack retraction oil cylinder schematic diagram of the present invention.
Fig. 7 places the jacking cushion block schematic diagram below jack of the present invention again.
Fig. 8 is all jacks of the present invention while jacking cylinder schematic diagrams for the second time.
Fig. 9 places second layer cushion block schematic diagram under all temporary supportings of the present invention.
Figure 10 places second layer cushion block schematic diagram below jack of the present invention.
Figure 11 is the jack of the present invention oil cylinder that bounces back for the second time, and again places second layer cushion block schematic diagram.
Figure 12 is the jacking of the present invention schematic diagram that puts in place.
Figure 13 is the some temporary supporting schematic diagram of burn-oning below deck plate of the present invention.
Major label description in figure:
1 jack, 2 temporary supportings, 3 deck plates, 4 cushion blocks.
The specific embodiment
As Fig. 1, shown in Figure 2, to be deck plate adopt the classification synchronization hydraulic lifting system to carry out grading, lifting after completing the place is prefabricated in the present invention, then, utilizes flat truck to transport, and this process is divided into following step:
The first step: be evenly arranged several hydraulic jacks 1 and several temporary protections and support 2 below works, and connect synchronous oil pump and hydraulic jack 1 by oil pipe;
(1) according to works-deck plate 3 own characteristics, by calculating, need to determine quantity and jack 1 position of jack 1, and temporary protection supports 2 quantity and position, and several hydraulic jacks 1 and temporary protection are supported 2 be evenly arranged in below works according to computation structure; Then, with hydraulic jack 1 by oil pipe with synchronize oil pump and connect and debug.
(2) for to avoid by ground unfairness or the deck plate 3 inconsistent hydraulic jack that causes 1 discontinuity of lower flange height, first carried out pre-jacking before carrying out the classification synchronization of jacking up, make between deck plate 3 and hydraulic jack 1 and can contact fully, and between works and all hydraulic jack, distance is consistent, and during with assurance classification synchronization of jacking up, jack 1 is stressed evenly.
Second step: as shown in Figure 3, several hydraulic jacks 1 of synchronous oil pump control are jacking cylinder simultaneously;
The 3rd step: as shown in Figure 4, place cushion block 4 for 2 under several temporary supportings;
The 4th step: as shown in Figure 5, place cushion block 4 below hydraulic jack 1;
The 5th step: as shown in Figure 6, hydraulic jack 1 retraction oil cylinder;
The 6th step: as shown in Figure 7, again place jacking cushion block 4 below hydraulic jack 1;
The 7th step: proceed the classification synchronization of jacking up
(1) as shown in Figure 8, all jacks 1 jacking cylinder simultaneously for the second time;
(2) as shown in Figure 9, all temporary supportings are placed second layer cushion block 42 times;
(3) as shown in figure 10, place second layer cushion block 4 below jack 1;
(4) as shown in figure 11, jack 1 oil cylinder that bounces back for the second time, and again place second layer cushion block 4;
(5) as shown in figure 12, repeat above-mentioned second step to the six step by step suddenly until jacking is fit to the transport trolley entry altitude;
The 8th step: transport trolley enters the rear jack-up works of works-deck plate 3, removes the following cushion block 4 of temporary supporting 2, simultaneously, and the temporary supporting 2 of equal height on spot welding connects below works.
Synchronous oil pump is the commercially available prod, and hydraulic jack 1 and jack carrier loader are for adopting the prior art manufacturing, and temporary supporting 2 and cushion block 4 are prior art.
The above, it is only preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (2)
1. large-tonnage ocean engineering structure classification synchronous hydraulic jacking technique is characterized in that: adopt following steps:
The first step: be evenly arranged several hydraulic jacks and the support of several temporary protections below works, and connect synchronous oil pump and hydraulic jack by oil pipe;
Second step: synchronous several hydraulic jacks of oil pump control are jacking cylinder simultaneously;
The 3rd step: place cushion block below several temporary supportings;
The 4th step: place cushion block below hydraulic jack;
The 5th step: hydraulic jack retraction oil cylinder;
The 6th step: again place jacking cushion block below hydraulic jack;
The 7th step: repeat above-mentioned second step to the six step by step rapid until jacking is fit to the transport trolley entry altitude;
The 8th step: after transport trolley entered works, the jack-up works removed the cushion block below temporary supporting, simultaneously, connected the temporary supporting of equal height below works.
2. large-tonnage ocean engineering structure classification synchronous hydraulic jacking technique according to claim 1, it is characterized in that: before described second step carries out, first carry out pre-jacking, works can fully be contacted with all hydraulic jack, stressed even during with assurance hydraulic jack classification jacking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910243305 CN102101629B (en) | 2009-12-18 | 2009-12-18 | Hierarchical synchronous hydraulic jacking process for large-tonnage ocean engineering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910243305 CN102101629B (en) | 2009-12-18 | 2009-12-18 | Hierarchical synchronous hydraulic jacking process for large-tonnage ocean engineering structure |
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| Publication Number | Publication Date |
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| CN102101629A CN102101629A (en) | 2011-06-22 |
| CN102101629B true CN102101629B (en) | 2013-06-19 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518312A (en) * | 2011-12-28 | 2012-06-27 | 中国海洋石油总公司 | Synchronous jacking accurate in-place installation process for large equipment |
| CN102807174A (en) * | 2012-08-09 | 2012-12-05 | 中国海洋石油总公司 | Synchronous jacking process of rolled pipes for ultra-large deepwater jacket |
| CN104860230B (en) * | 2015-05-25 | 2017-11-28 | 南通中远船务工程有限公司 | A kind of marine engineering equipment module dedicated hydraulic dolly and application method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159505C (en) * | 2002-03-26 | 2004-07-28 | 中国铝业股份有限公司 | Method for integral jacking roof of reinforced concrete pile single storey industry workshop |
| JP4596823B2 (en) * | 2003-06-30 | 2010-12-15 | 株式会社アイチコーポレーション | Jacking equipment for aerial work platforms |
| KR20070077559A (en) * | 2006-01-24 | 2007-07-27 | 박종인 | Self-stepping high tonage transporter |
| CN2928809Y (en) * | 2006-07-12 | 2007-08-01 | 浙江力富特机械有限公司 | Hozirontal hydraulic jack |
| JP2008189463A (en) * | 2007-01-11 | 2008-08-21 | Mitsubishi Electric Corp | Hydraulic elevator device |
| CN201326594Y (en) * | 2008-09-19 | 2009-10-14 | 呼六福 | Combined control system of direct connecting miniature hydraulic pump and control device thereof |
| CN101503911B (en) * | 2008-12-19 | 2010-08-25 | 上海颖川加固工程技术有限公司 | High-altitude integral jacking and longitudinal slope regulation construction process and system for multi-span simply supported bridge |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: Offshore Oil Engineering Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: Offshore Oil Engineering (Qingdao) Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: Offshore Oil Engineering Co., Ltd. Patentee before: China National Offshore Oil Corporation Co-patentee before: Offshore Oil Engineering (Qingdao) Co., Ltd. |