CN103967041B - Construction method of fan foundation ring - Google Patents
Construction method of fan foundation ring Download PDFInfo
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- CN103967041B CN103967041B CN201410213966.3A CN201410213966A CN103967041B CN 103967041 B CN103967041 B CN 103967041B CN 201410213966 A CN201410213966 A CN 201410213966A CN 103967041 B CN103967041 B CN 103967041B
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- foundation ring
- blower foundation
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- leveling
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- 238000010276 construction Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 9
- 239000003550 marker Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 229910001374 Invar Inorganic materials 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000012795 verification Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 210000003205 muscle Anatomy 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009424 underpinning Methods 0.000 description 1
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Abstract
The invention relates to a construction method of a fan foundation ring, wherein the fan foundation ring comprises an upper flange and a lower flange, and the leveling method comprises the following steps: the method includes the steps of aligning a fan foundation ring; coarse adjustment of a fan foundation ring; binding the ground iron, the bottom plate steel bars and the torsion-resistant steel bars on the inner side and the outer side of the foundation ring; fourthly, finely adjusting a foundation ring of the draught fan; and fifthly, pouring concrete. The leveling method only adopts one set of measuring instrument during leveling each time, reduces the number of instruments and personnel allocation, and simplifies the original at least three times of leveling and control to two times. The anti-torsion rib is utilized to play a role in reinforcing the foundation ring, and simultaneously, the safety of staff working on the vertical ruler during fine adjustment is ensured, the error of the invention is only between 0.0mm and 0.3mm, the design requirement is completely met, and after the foundation ring is fine and flat, the adjustment is not needed in the construction process of the foundation; the manufacturing error of the foundation ring is quickly and accurately leveled.
Description
Technical field
The invention belongs to blower foundation ring installing area, especially a kind of blower foundation ring construction method.
Background technology
Blower foundation ring construction method mainly comprises the leveling of blower foundation ring and concrete construction, and the leveling of blower foundation ring can be divided into coarse adjustment, fine setting, accurate adjustment 3 procedure.Coarse adjustment coordinates 2 level gauges to measure at discharge ring support member place with 1 total powerstation exactly, by adjustment screw rod lifting discharge ring, makes discharge ring surface reach substantially smooth; Fine setting is exactly arrange 9 or 12 points at discharge ring surface uniform on the basis of coarse adjustment, utilizes 1 total powerstation to coordinate 2 level gauges to carry out in-site measurement control, to make base surface levelness Deviation Control within the scope of designing requirement; The object of accurate leveling mainly eliminates error during fine setting, utilizes 2 level gauges to carry out in-site measurement control, 9 control points that comprehensive Fundamentals of Measurement ring upper surface is arranged, makes surface levelness Deviation Control in least limit as far as possible.After precision regulating reef knot bundle, locking adjustment nut, when people is not gone up on discharge ring surface, personnel stand on stool at the vertical Sopwith staff in side, side, utilize 2 level gauges again to carry out repetition measurement to layout points, if levelness deviation meets the demands, just enter next procedure construction, if do not meet the demands, re-start leveling work, more than this kind of method measuring apparatus and personnel, also need frequent repetition measurement, be unfavorable for construction speed and quality, also will strengthen difficulty of construction and cost.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of blower foundation ring construction method is provided, this leveling method reduces measuring apparatus quantity and staffing, simplify leveling operation, reduce the expense produced because of reinforcement measure, reduce construction costs, improve installation rate, and this method is simple and easy to grasp, installation quality is easy to control.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of blower foundation ring construction method, blower foundation ring comprises upper flange and lower flange, and its leveling method is:
(1), blower foundation ring centering: first blower foundation ring crane is vertically sling, support leveling bolt is equidistantly contained on the lower flange of blower foundation ring by design load, with tower cylinder door central point corresponding outside the lower flange of blower foundation ring for starting point, divide the outer perimeter of the lower flange of blower foundation ring by invar tape 3 grade after verification, and carry out 3 corresponding gauge points; Blower foundation ring in place to the pre-embedded steel slab on bed course time, alignd with the tower cylinder door central point that the line of ink marker ejects with on bed course by the tower cylinder door central point on blower foundation ring upper flange, error is less than 10mm; Wait 3 gauge points of point girth to align with 3 built-in fitting center lines that the line of ink marker ejects with on bed course mark on blower foundation ring lower flange, error is less than 15mm, checks with plumb bob; After centering, by three supporting legs arranged equidistant below blower foundation ring respectively with the pre-embedded steel slab firm welding on bed course, can crane be withdrawn;
(2), blower foundation ring coarse adjustment: set up the level gauge one verified on bed course, height of leveling instrument is lower than the lower flange bottom surface of blower foundation ring, steel set-square reversal of the natural order of things is measured at the upper surface of a supporting leg lower flange, other two supporting legs are measured successively, after measurement completes, according to the survey data at three supporting leg places, respectively other 2 are regulated for reference point with a bit, support with the jack of 10 tons during adjustment, height coarse adjustment is carried out by the adjusting bolt that supporting leg is arranged, release jack after adjustment completes, and adjusting nut is tightened, repetition measurement is carried out after adjustment completes, the horizontal gradient error of three supporting leg place blower foundation rings is controlled within 5mm,
(3), the colligation of the antitorque reinforcing bar in both sides inside and outside base plate guiding principle muscle and discharge ring;
(4), blower foundation ring accurate adjustment: row labels of first being gone forward side by side in point 12 some positions such as the upper flange of blower foundation ring surface outer shroud before accurate adjustment, arrange clockwise with the bolt hole corresponding to tower cylinder door direction, the electronic level one verified is set up on foundation ditch edge, be equipped with glass steel ruler carries out levelness control to these 12 some positions, then 3 some positions at three supporting leg places are measured and recorded data, with reference to the error information of some position corresponding on blower foundation ring Delivery Inspection Report, the difference of 3 some positions, three supporting leg places is adjusted to the numerical value same with fabrication error, this control method and step (2) in the coarse adjustment of blower foundation ring the same, finally measure all the other 9 some positions, after adjustment completes with electric welding by adjusting screw(rod) and nut-welding firm, the leveling of blower foundation ring is complete,
(5), pouring concrete construction: first blower foundation ring is exposed concrete part from plastics cloth parcel before concrete placings, clockwise or counterclockwise by outside to inside placement layer by layer during cast, finally build blower foundation ring center, utilize peripheral concrete of having built to the effect solid base ring of reinforcing bar, blower foundation circulating application work is complete
Advantage of the present invention and beneficial effect are:
Leveling method of the present invention only have employed a set of measuring apparatus when each leveling, decreases instrument quantity and staffing, again original at least three leveling and control is simplified to twice.Utilize antitorque muscle to serve the effect of underpinning ring, found the safety of chi staff simultaneously when also ensure that accurate adjustment, meet design requirement completely, after discharge ring essence is flat, without the need to adjusting again in the work progress on basis; Foozle according to discharge ring is smart flat fast.Concrete placings of the present invention is by outside to inside, and what both met prevention of mass concrete builds requirement, the discharge ring that utilized again peripheral concrete of having built firm, reduces the disturbance to discharge ring in concrete placings process.After having constructed by this construction method, then recheck discharge ring, compared with the survey data after complete with accurate adjustment, error is only between 0.0mm-0.3mm.
Accompanying drawing explanation
Fig. 1 is blower foundation ring structure schematic diagram of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is the position view of jack and steel set-square in installing;
Fig. 4 is the pouring concrete sequential schematic of blower foundation ring.
Detailed description of the invention
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of blower foundation ring construction method, blower foundation ring 2 comprises upper flange 9 and lower flange 8, and its leveling method is:
(1), blower foundation ring centering: first blower foundation ring crane is vertically sling, support leveling bolt is equidistantly contained on the lower flange of blower foundation ring by design load, with tower cylinder door 1 central point corresponding outside the lower flange of blower foundation ring for starting point, divide the outer perimeter of the lower flange of blower foundation ring by invar tape 3 grade after verification, and carry out 3 corresponding gauge points; Blower foundation ring in place to the pre-embedded steel slab on bed course time, alignd with the tower cylinder door central point that the line of ink marker ejects with on bed course by the tower cylinder door central point on blower foundation ring upper flange, error is less than 10mm; Wait 3 gauge points of point girth to align with 3 built-in fitting center lines that the line of ink marker ejects with on bed course mark on blower foundation ring lower flange, error is less than 15mm, checks with plumb bob; After centering, by three supporting legs 6 arranged equidistant below blower foundation ring respectively with the pre-embedded steel slab firm welding on bed course, can crane be withdrawn;
(2), blower foundation ring coarse adjustment: set up the level gauge one verified on bed course, height of leveling instrument is lower than the lower flange bottom surface of blower foundation ring, steel set-square 11 is hung upside down and measures at the upper surface of a supporting leg lower flange, other two supporting legs are measured successively, after measurement completes, according to the survey data at three supporting leg places, respectively other 2 are regulated for reference point with a bit, support with the jack 10 of 10 tons during adjustment, height coarse adjustment is carried out by the adjusting bolt 5 that supporting leg is arranged, adjusting bolt is arranged on supporting leg upper surface 7, adjusting bolt above lower flange is provided with adjusting nut 3, adjusting bolt below lower flange is provided with lower adjusting nut 4, release jack after adjustment completes, and adjusting nut is tightened, repetition measurement is carried out after adjustment completes, the horizontal gradient error of three supporting leg place blower foundation rings is controlled within 5mm,
(3), the colligation of the antitorque reinforcing bar in both sides inside and outside base plate guiding principle muscle and discharge ring;
(4), blower foundation ring accurate adjustment: row labels of first being gone forward side by side in point 12 some positions such as the upper flange of blower foundation ring surface outer shroud before accurate adjustment, arrange clockwise with the bolt hole corresponding to tower cylinder door direction, the electronic level one verified is set up on foundation ditch edge, be equipped with glass steel ruler carries out levelness control to these 12 some positions, then 3 some positions at three supporting leg places are measured and recorded data, with reference to the error information of some position corresponding on blower foundation ring Delivery Inspection Report, the difference of 3 some positions, three supporting leg places is adjusted to the numerical value same with fabrication error, this control method and step (2) in the coarse adjustment of blower foundation ring the same, finally measure all the other 9 some positions, after adjustment completes with electric welding by adjusting screw(rod) and nut-welding firm, the leveling of blower foundation ring is complete,
(5), pouring concrete construction: first blower foundation ring is exposed concrete part from plastics cloth parcel before concrete placings, clockwise or counterclockwise by outside to inside placement layer by layer during cast, finally build blower foundation ring center, utilize peripheral concrete of having built to the effect solid base ring of reinforcing bar, blower foundation circulating application work is complete.
Claims (1)
1. a blower foundation ring construction method, blower foundation ring comprises upper flange and lower flange, it is characterized in that: leveling method is:
(1), blower foundation ring centering: first blower foundation ring crane is vertically sling, support leveling bolt is equidistantly contained on the lower flange of blower foundation ring by design load, with tower cylinder door central point corresponding outside the lower flange of blower foundation ring for starting point, divide the outer perimeter of the lower flange of blower foundation ring by invar tape 3 grade after verification, and carry out 3 corresponding gauge points; Blower foundation ring in place to the pre-embedded steel slab on bed course time, alignd with the tower cylinder door central point that the line of ink marker ejects with on bed course by the tower cylinder door central point on blower foundation ring upper flange, error is less than 10mm; Wait 3 gauge points of point girth to align with 3 pre-embedded steel slab center lines that the line of ink marker ejects with on bed course mark on blower foundation ring lower flange, error is less than 15mm, checks with plumb bob; After centering, by three supporting legs arranged equidistant below blower foundation ring respectively with the pre-embedded steel slab firm welding on bed course, can crane be withdrawn;
(2), blower foundation ring coarse adjustment: set up the level gauge one verified on bed course, height of leveling instrument is lower than the lower flange bottom surface of blower foundation ring, steel set-square reversal of the natural order of things is measured at the upper surface of a supporting leg lower flange, other two supporting legs are measured successively, after measurement completes, according to the survey data at three supporting leg places, respectively other 2 are regulated for reference point with a bit, support with the jack of 10 tons during adjustment, height coarse adjustment is carried out by the adjusting bolt that supporting leg is arranged, release jack after adjustment completes, and adjusting nut is tightened, repetition measurement is carried out after adjustment completes, the horizontal gradient error of three supporting leg place blower foundation rings is controlled within 5mm,
(3), the colligation of the antitorque reinforcing bar in both sides inside and outside baseplate reinforcing bar and discharge ring;
(4), blower foundation ring accurate adjustment: row labels of first being gone forward side by side in point 12 some positions such as the upper flange of blower foundation ring surface outer shroud before accurate adjustment, arrange clockwise with the bolt hole corresponding to tower cylinder door direction, the electronic level one verified is set up on foundation ditch edge, be equipped with glass steel ruler carries out levelness control to these 12 some positions, then 3 some positions at three supporting leg places are measured and recorded data, with reference to the error information of some position corresponding on blower foundation ring Delivery Inspection Report, the difference of 3 some positions, three supporting leg places is adjusted to the numerical value same with fabrication error, this control method and step (2) in the coarse adjustment of blower foundation ring the same, finally measure all the other 9 some positions, after adjustment completes with electric welding by adjusting screw(rod) and nut-welding firm, the leveling of blower foundation ring is complete,
(5), pouring concrete construction: first blower foundation ring is exposed concrete part from plastics cloth parcel before concrete placings, clockwise or counterclockwise by outside to inside placement layer by layer during cast, finally build blower foundation ring center, utilize peripheral concrete of having built to the effect solid base ring of reinforcing bar, blower foundation circulating application work is complete.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410213966.3A CN103967041B (en) | 2014-05-21 | 2014-05-21 | Construction method of fan foundation ring |
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| CN201410213966.3A CN103967041B (en) | 2014-05-21 | 2014-05-21 | Construction method of fan foundation ring |
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| CN103967041B true CN103967041B (en) | 2016-04-27 |
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| CN104929148B (en) * | 2015-07-06 | 2017-01-04 | 同济大学建筑设计研究院(集团)有限公司 | The upside-down mounting hardened system of generation power foundation of wind power ring group plinth and reinforcement means thereof |
| CN105134512B (en) * | 2015-08-14 | 2018-09-04 | 大连理工大学 | A kind of dedicated attachment gasket ring of wind turbine |
| CN106436735B (en) * | 2016-07-27 | 2018-06-12 | 中国能源建设集团安徽电力建设第一工程有限公司 | A kind of installation method of blower foundation ring |
| CN106595449B (en) * | 2016-12-21 | 2019-04-30 | 河南工程学院 | Pipeline valve both ends flange coaxiality detection method |
| CN106738295A (en) * | 2017-01-17 | 2017-05-31 | 中交公局第二工程有限公司 | A kind of adjustable forced centering apparatus of beam sections short-line prefabrication measurement |
| CN111963383B (en) * | 2020-08-17 | 2021-08-31 | 上海电气风电集团股份有限公司 | Foundation ring and machining and construction method thereof |
| CN112123251B (en) * | 2020-08-31 | 2022-04-15 | 广东工业大学 | Offshore wind turbine bolt set centering method based on visual tracking |
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| JP2002256573A (en) * | 2001-03-02 | 2002-09-11 | Chubu Electric Power Co Inc | Foundation for existing foundation reinforcing steel tower and construction method for it |
| CN201915507U (en) * | 2011-01-13 | 2011-08-03 | 葛洲坝集团第五工程有限公司 | Adjustable setting mould |
| CN202023199U (en) * | 2011-03-25 | 2011-11-02 | 国水投资集团包头风电科技有限公司 | Pre-stressed anchor plate and anchor bolt assembly for foundation |
| CN102758445B (en) * | 2011-04-27 | 2015-01-07 | 华锐风电科技(集团)股份有限公司 | Foundation forming method for wind driven generator tower |
| CN103255778B (en) * | 2013-03-22 | 2015-04-29 | 广东明阳风电产业集团有限公司 | Grouting positioning and leveling method for offshore wind turbine jacket foundation setting |
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