CN107386240A - The levelling technique of the large-scale non-slideway area build the side of liquefied natural gas module - Google Patents
The levelling technique of the large-scale non-slideway area build the side of liquefied natural gas module Download PDFInfo
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- CN107386240A CN107386240A CN201710598954.0A CN201710598954A CN107386240A CN 107386240 A CN107386240 A CN 107386240A CN 201710598954 A CN201710598954 A CN 201710598954A CN 107386240 A CN107386240 A CN 107386240A
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- levelling
- natural gas
- build
- liquefied natural
- absolute altitude
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
- E02B17/025—Reinforced concrete structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/38—Foundations for large tanks, e.g. oil tanks
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0039—Methods for placing the offshore structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of levelling technique of the non-slideway area build the side of large-scale liquefied natural gas module, using following steps：One：Strong rammer is carried out to build the side；Two：Datum mark is established, then, measurement；Three：Determine levelling benchmark point；Four：Remeasure, and according to the levelling benchmark point newly measured；Five：Determine the target face of concreting；Six：One-time-concreting is carried out according to measurement result；Seven：Embedded ground anchor bolt；Eight：Measure the absolute altitude of pad pier upper surface；Nine：Lift simultaneously first layer deck plate in place, and after regulation, loop wheel machine decoupling device；Ten：Concrete surface is cleaned out, progress is secondary to be poured, to ensure that the grouting material poured is full of space.The present invention can carry out levelling, the adjustment work of vertical error after solving first layer deck plate in place to multiple little module build the sides simultaneously；Large-scale liquefied natural gas module construction cost is greatly reduced, ensure that the construction precision of large-scale liquefied natural gas module.
Description
Technical field
The present invention relates to liquefied natural gas module, more particularly to a kind of non-slideway area of large-scale liquefied natural gas module to build field
The levelling technique on ground, belong to ocean and build engineering field.
Background technology
In the building course of large-scale liquefied natural gas (LNG) module, it is often necessary to which the pipeline of several modules is connected
Afterwards, then carry out multimode and unify pressure testing.Therefore, it is necessary to ensure that each module is in one plane built, typically require several
Different module column elevation of bottom deviations are within ± 3mm.
Because large-scale liquefied natural gas module is usually to be built in non-slideway area, rather than how uneven the ground in slideway area is
Whole, the level difference at diverse location is larger.Consequently, it is desirable to take steps to levelling to build the side progress.Typically for small
The module of type, fine sand and the middle husky part that carries out can be used levelling, but for large-scale liquefied natural gas module, this levelling technique
It is inapplicable.Simultaneously as the method for large-scale liquefied natural gas module generally use stratified construction, general its first layer deck plate peace
It is undesirable in vertical direction error after due to column construction error the first Rotating fields piece being caused to install after being attached to position, because
This, after usually being jacked using jack, then the method for choker block piece solves.But above method has the disadvantage that：
1. carrying out floor leveling using sand, for large-scale liquefied natural gas module, levelling difficulty of construction is very big, therefore,
The method does not apply to.
2. floor leveling is carried out using sand, because the support reaction of the large-scale single column of liquefied natural gas module is very big, after
Phase settles very risky.
3. if carry out floor leveling using sand, the error transfer factor after first layer deck plate is installed, it is common practice that adopt
Choker block piece again after being jacked with jack, therefore, it is necessary to prepare the pad and jack of various different sizes, expend a large amount of things
Power.
4th, because large-scale liquefied natural gas module is made up of numerous little modules, joint is needed to build often, and it is each small
Module needs are levelling according to a reference plane, therefore, the method that floor leveling is carried out using sand, are only applicable to single little module
It is levelling, it is levelling to multiple little modules difficult to realize.
The content of the invention
It is a primary object of the present invention to overcome disadvantages mentioned above existing for prior art, and provide a kind of large-scale liquefaction day combustion
The levelling technique of the non-slideway area build the side of gas module, it, can not only in large-scale liquefied natural gas module building course
Simultaneously multiple little module build the sides are carried out with levelling, the adjustment work of vertical error after solving first layer deck plate in place,
Taken a firm foundation for project；It can also enough reducing the usage amount of jack and pad, large-scale liquefaction is greatly reduced
Natural gas module construction cost, it ensure that the construction precision of large-scale liquefied natural gas module.
The purpose of the present invention is realized by following technical scheme：
A kind of levelling technique of the non-slideway area build the side of large-scale liquefied natural gas module, it is characterised in that：Using following
Step：
The first step：Strong rammer is carried out to build the side, and the build the side after compacting is cleaned up；
Second step：Establish datum mark, then, measure the placement area of all pad piers, and using the measurement data as
Select the foundation of levelling benchmark point；
3rd step：At the placement area of measurement absolute altitude maximum pad pier, levelling benchmark point is determined；
4th step：Basic unit's surface dust of pad pier placement area is cleaned out, and after tamping foundation ditch surface dust, mark post moved to newly
Plane, remeasure；And according to the levelling benchmark point newly measured, mark the position at absolute altitude；
5th step：According to the position of levelling benchmark point absolute altitude, horizontal line is arranged, to establish the levelling benchmark face of absolute altitude；From
And determine the target face of concreting；
6th step：According to measurement result, branch concrete blinding carries out one-time-concreting；
7th step：By in the basic unit of the concreting being stirred to concrete blinding, and vibrate in time and floating, coagulation
Native surface carries out plucking；And ground anchor bolt is accurately buried as requested；
8th step：Put pad pier it is in place after, the absolute altitude of measurement pad pier upper surface, and by control errors allowed band with
It is interior；
9th step：Simultaneously first layer deck plate in place is lifted, loop wheel machine temporarily not decoupling device, examines all bottoms for being hung structural upright
Portion's size, if exceeding error requirements, it is adjusted, after regulation, loop wheel machine decoupling device；
Tenth step：Concrete surface is cleaned out, and soaked, to ensure the adhesive strength of grouting material and concrete；Branch
Grouting template progress is secondary to be poured, and the grouting material for ensureing to pour is full of space.
In 3rd step, levelling benchmark point is 0mm absolute altitudes；Wherein, at absolute altitude consider concrete minimum pour height and
Grouting height.
In 5th step, when establishing the levelling benchmark face of absolute altitude, it need to ensure that the bottom surface of concrete upper surface and pad pier is stayed
There is certain gap, so that follow-up grouting works there are enough spaces.
In 8th step, if the absolute altitude appearance of pad pier upper surface is overproof, adjusted by bottom ground anchor bolt
It is whole.
Beneficial effects of the present invention：The present invention is because using above-mentioned technical proposal, it is to large-scale liquefied natural gas module
In building course, can not only simultaneously to multiple little module build the sides carry out it is levelling, solve first layer deck plate it is in place after
The adjustment work of vertical error, taken a firm foundation for project；It can also enough reduce the use of jack and pad
Amount, greatly reduces large-scale liquefied natural gas module construction cost, ensure that the construction precision of large-scale liquefied natural gas module.
Brief description of the drawings
Fig. 1 is overall structure floor map of the present invention.
Fig. 2 is structural profile illustration of the present invention.
Fig. 3 is structure use state diagram of the present invention.
Major Symbol explanation in figure：
1. build the side, 2. pad piers, 3. structural uprights, 4. grouting materials, 5. concrete, 6. ground anchor bolts, 7. grouting observations
Hole.
Embodiment
As shown in Fig. 1-Fig. 3, the present invention uses following steps：
The first step：Strong rammer is carried out to build the side 1, and the build the side after compacting is cleaned up；
Second step：Establish datum mark, then, measure the placement area of all pad piers 2, and using the measurement data as
Select the foundation of levelling benchmark point；
3rd step：At the placement area of measurement absolute altitude maximum pad pier 2, levelling benchmark point, (levelling benchmark now are determined
Point is 0mm absolute altitudes)；Wherein, consider that concrete minimum pours height and grouting height at absolute altitude.
4th step：After basic unit's surface dust of the placement area of pad pier 2 is cleaned out, then foundation ditch surface dust is cleared up, and further rammed
It is real；Now, mark post is moved into new plane to be remeasured, according to the levelling benchmark point newly measured, marked at 0mm absolute altitudes
Position；
5th step：According to levelling benchmark point：The position of 0mm absolute altitudes, horizontal line is arranged, to establish the levelling base of 0mm absolute altitudes
Quasi- face；So that it is determined that the target face of concreting；Now, it need to ensure that the bottom surface of the upper surface of concrete 5 and pad pier 2 is left necessarily
Gap, so that follow-up grouting works have enough spaces；
6th step：According to measurement result, branch concrete blinding carries out one-time-concreting；
7th step：Strength grade of concrete is done into trial by design requirement, then, then the pea gravel concreten 5 that will be stirred
It is poured into the basic unit of concrete blinding, and vibrates in time and floating, the surface of concrete 5 progress plucking；It is and accurate as requested
Embedded ground anchor bolt 6；
8th step：By ground anchor bolt 6 put pad pier 2 it is in place after, with the absolute altitude of the upper surface of level measurement pad pier 2, and
By the absolute altitude control errors of the upper surface of pad pier 2 within allowed band, if overproof appearance, then pass through bottom ground anchor bolt 6
To be adjusted；
9th step：Lift and first layer deck plate in place, loop wheel machine temporarily not decoupling device, examine all structural uprights 3 of being hung
Bottom size, if exceeding error requirements, after loop wheel machine raising is energetic, it is adjusted by twisting ground anchor bolt 6, after regulation,
Loop wheel machine decoupling device；
Tenth step：The removing surface of concrete 5 is clean, and soak, to ensure the adhesive strength of grouting material 4 and concrete 5；
Branch grouting template progress is secondary to pour grouting material 4, and by the situation for the observation grouting of peep hole 7 of being in the milk, to ensure the filling poured
Slurry 4 is full of space.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, it is all
It is any simple modification, equivalent change and modification made according to the technical spirit of the present invention to above example, still falls within
In the range of technical solution of the present invention.
Claims (4)
- A kind of 1. levelling technique of the non-slideway area build the side of large-scale liquefied natural gas module, it is characterised in that：Using following step Suddenly：The first step：Strong rammer is carried out to build the side, and the build the side after compacting is cleaned up；Second step：Datum mark is established, then, measures the placement area of all pad piers, and by the measurement data alternatively The foundation of levelling benchmark point；3rd step：At the placement area of measurement absolute altitude maximum pad pier, levelling benchmark point is determined；4th step：Basic unit's surface dust of pad pier placement area is cleaned out, and after tamping foundation ditch surface dust, mark post moved to new flat Face, remeasure；And according to the levelling benchmark point newly measured, mark the position at absolute altitude；5th step：According to the position of levelling benchmark point absolute altitude, horizontal line is arranged, to establish the levelling benchmark face of absolute altitude；So as to really Determine the target face of concreting；6th step：According to measurement result, branch concrete blinding carries out one-time-concreting；7th step：By in the basic unit of the concreting being stirred to concrete blinding, and vibrate in time and floating, concrete table Face carries out plucking；And ground anchor bolt is accurately buried as requested；8th step：Put pad pier it is in place after, the absolute altitude of measurement pad pier upper surface, and by control errors within allowed band；9th step：Simultaneously first layer deck plate in place is lifted, loop wheel machine temporarily not decoupling device, examines all bottom chis for being hung structural upright It is very little, if exceeding error requirements, it is adjusted, after regulation, loop wheel machine decoupling device；Tenth step：Concrete surface is cleaned out, and soaked, to ensure the adhesive strength of grouting material and concrete；Branch is in the milk Template progress is secondary to be poured, and the grouting material for ensureing to pour is full of space.
- 2. the levelling technique of the non-slideway area build the side of large-scale liquefied natural gas module according to claim 1, its feature It is：In 3rd step, levelling benchmark point is 0mm absolute altitudes；Wherein, consider that concrete minimum pours height and grouting at absolute altitude Highly.
- 3. the levelling technique of the non-slideway area build the side of large-scale liquefied natural gas module according to claim 1, its feature It is：In 5th step, when establishing the levelling benchmark face of absolute altitude, it need to ensure that the bottom surface of concrete upper surface and pad pier leaves one Fixed gap, so that follow-up grouting works have enough spaces.
- 4. the levelling technique of the non-slideway area build the side of large-scale liquefied natural gas module according to claim 1, its feature It is：In 8th step, if the absolute altitude appearance of pad pier upper surface is overproof, it is adjusted by bottom ground anchor bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710598954.0A CN107386240A (en) | 2017-07-21 | 2017-07-21 | The levelling technique of the large-scale non-slideway area build the side of liquefied natural gas module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710598954.0A CN107386240A (en) | 2017-07-21 | 2017-07-21 | The levelling technique of the large-scale non-slideway area build the side of liquefied natural gas module |
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| Publication Number | Publication Date |
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| CN107386240A true CN107386240A (en) | 2017-11-24 |
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| CN201710598954.0A Pending CN107386240A (en) | 2017-07-21 | 2017-07-21 | The levelling technique of the large-scale non-slideway area build the side of liquefied natural gas module |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070243024A1 (en) * | 2004-09-07 | 2007-10-18 | Offshore Technology Development Pte Ltd | Jackup Oil Rig And Similar Platforms |
| CN101804852A (en) * | 2010-04-15 | 2010-08-18 | 南通中远船务工程有限公司 | Sliding plate for marine products sliding and sling plate type sliding method |
| CN102337736A (en) * | 2011-07-06 | 2012-02-01 | 中国海洋石油总公司 | Installation process of upper module on offshore oil platform |
| KR20150131488A (en) * | 2014-05-15 | 2015-11-25 | 주식회사 아이랜드 | Floating type public toilet |
-
2017
- 2017-07-21 CN CN201710598954.0A patent/CN107386240A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070243024A1 (en) * | 2004-09-07 | 2007-10-18 | Offshore Technology Development Pte Ltd | Jackup Oil Rig And Similar Platforms |
| CN101804852A (en) * | 2010-04-15 | 2010-08-18 | 南通中远船务工程有限公司 | Sliding plate for marine products sliding and sling plate type sliding method |
| CN102337736A (en) * | 2011-07-06 | 2012-02-01 | 中国海洋石油总公司 | Installation process of upper module on offshore oil platform |
| KR20150131488A (en) * | 2014-05-15 | 2015-11-25 | 주식회사 아이랜드 | Floating type public toilet |
Non-Patent Citations (2)
| Title |
|---|
| 田旺生: "建造场地的地面找平及沉降调平方案", 《绿色环保建材》 * |
| 石继程等: "非滑道区LNG组块建造地基不均匀沉降分析", 《海岸工程》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: Offshore Oil Engineering (Qingdao) Co., Ltd. Applicant after: Offshore Oil Engineering Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant before: China National Offshore Oil Corporation Applicant before: Offshore Oil Engineering (Qingdao) Co., Ltd. Applicant before: Offshore Oil Engineering Co., Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20171124 |