CN108951883A - A kind of nuclear power station high-accuracy built-in fitting installation method - Google Patents
A kind of nuclear power station high-accuracy built-in fitting installation method Download PDFInfo
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- CN108951883A CN108951883A CN201810394169.8A CN201810394169A CN108951883A CN 108951883 A CN108951883 A CN 108951883A CN 201810394169 A CN201810394169 A CN 201810394169A CN 108951883 A CN108951883 A CN 108951883A
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- band steel
- top band
- embedded part
- installation method
- nuclear power
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- 238000009434 installation Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 110
- 239000010959 steel Substances 0.000 claims abstract description 110
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 238000003466 welding Methods 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000003550 marker Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 238000005498 polishing Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 238000005266 casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention is a kind of pre-buried installation method of nuclear power station high-precision, which includes the first step, the separate design of high-precision embedded part；Second step, the installation of bottom embedded part；Third step, the positioning of top band steel and the first successive step of absolute altitude；4th step, top band steel prevent deformation from fixing；5th step, top band steel are finally welded and fixed.The disposable installation accuracy of high-accuracy built-in fitting is improved using this kind of installation method, reduction is unsatisfactory for the manpower consumption of secondary polishing caused by requiring because of precision, can utilize part clout, improve construction efficiency, create biggish economic benefit and social benefit.
Description
Technical field
The present invention relates to a kind of installation of embedded parts method, especially a kind of high-accuracy built-in fitting installation method belongs to nuclear power
It the technical field of construction such as stands.
Background technique
Built-in fitting largely exists in nuclear island factory building as equipment, process pipe and the linkage interface of building structure.It is high-precision
The built-in fitting electric panel cabinet basis high generally as susceptibility is spent, requires repeatedly adjustment to mention its installation accuracy in design document
Height is finally increased to 1mm/m by initial 4mm/m flatness.In practice of construction, although the installation to high-accuracy built-in fitting is given
Great attention is given, after the construction of former construction technology, the absolute altitude and levelness of more high-accuracy built-in fitting are not still able to satisfy
Design installation accuracy requirement.
For the disposable installation accuracy for improving high-accuracy built-in fitting, reduces the secondary polishing in scene and consume all kinds of resources, drawn
The cost risen improves, form a kind of high-accuracy built-in fitting installation method by field practice, the effective solution above problem.
Summary of the invention
It is an object of the invention to: it is directed to above-mentioned disadvantage of the existing technology, proposes high-accuracy built-in fitting installation method,
The disposable installation accuracy of high-accuracy built-in fitting is improved, is reduced because precision is unsatisfactory for manually disappearing for secondary polishing caused by requiring
Consumption can utilize the unserviceable clout in part, improve construction efficiency.
A kind of nuclear power station high-accuracy built-in fitting installation method, by high-accuracy built-in fitting be set to building floor layer and
It fits up in layer, specifically comprises the following steps:
Step 1: lower part embedded part and top band steel are made according to force request；
Step 2: pouring floor layer and lower part embedded part is set in floor layer；
Step 3: successive step at the beginning of carrying out positioning and absolute altitude to top band steel on the embedded part of lower part；
Step 4: top band steel being prevented on the embedded part of lower part to carry out deformation fixation；
Step 5: top band steel is fixedly welded on the embedded part of lower part；
Step 6: grouting forms finishing layer and top band steel is located in finishing layer, the upper side exposure of top band steel
In finishing layer upper side.
A kind of nuclear power station high-accuracy built-in fitting installation method, further design is: lower part embedded part bottom side edge
Length direction spacing is welded with several holdfasts.
A kind of nuclear power station high-accuracy built-in fitting installation method, further design is: step 2 is specific as follows:
Lower part embedded part is bound in the reinforcing bar of floor layer, fixation is poured simultaneously with floor after accurate positioning, so that the lower part embedded part is placed in
In floor layer；The positioning slight change of casting process middle and lower part embedded part, on top band steel installation accuracy without influence.
A kind of nuclear power station high-accuracy built-in fitting installation method, further design is: the step 3 is specific
Implementation steps include:
Step 3.1: top band steel is layed in above the embedded part of lower part；
Step 3.2: positioning and absolute altitude initial adjustment are carried out to top band steel.
A kind of nuclear power station high-accuracy built-in fitting installation method, further design is: the step 3.1 includes
Following steps: top band steel is aligned laying with lower part embedded part center: respectively in top band steel width direction center and lower part
The design centre of embedded part is positioned parallel to long side and makes marks out parallel lines, and when installation both guarantees center line alignment.
A kind of nuclear power station high-accuracy built-in fitting installation method, further design is: the step 3.2 includes
Following steps: the datum mark of installation high-accuracy built-in fitting floor needed for being determined using level, by 360 ° of irradiation laser infrared lines
Level meter is placed on reference point location；Scale is placed on installed top band steel, laser infrared line water is mapped out on scale
The ray that level issues, according to the absolute altitude and levelness of successive step top band steel at the beginning of datum mark.It is pre-buried to one section of high-precision
After the completion of part adjustment, next section of high-precision degree type embedded part can be carried out and be laid with.
A kind of nuclear power station high-accuracy built-in fitting installation method, further design is: the step 4 is specific
Implementation steps include:
Step 4.1: spacing label is done along its length to top band steel；
Step 4.2: absolute altitude and levelness to top band steel make accurate adjustment；
Step 4.3: top band steel is tentatively fixed on lower part embedded part.
A kind of nuclear power station high-accuracy built-in fitting installation method, further design is: the step 4.2 is specific
It is as follows: using the control point real-time segmentation of level and binding marker adjustment top band steel absolute altitude and levelness；Absolute altitude and level
Degree adjustment is using wedge-shaped iron and the cooperation adjustment of U-shaped iron；Two or more top band steels being parallel to each other be one group, one group between it is high-precision
Embedded part is spent using 1m as in the region of radius, height difference is less than or equal to 1mm.
A kind of nuclear power station high-accuracy built-in fitting installation method, further design is: the step 4.3 is specific
It is as follows: the absolute altitude and levelness of top band steel meet the requirements after by support column perpendicular to lower part embedded part spacing place, upper end with
Top band steel spot welding connection, lower end is connect with lower part embedded part spot welding.After the completion of one group of high-accuracy built-in fitting is laid in place, to every
One group of high-accuracy built-in fitting is accurately adjusted, after a control point meets positioning and absolute altitude requirement, immediately using support cylindricality
Support is fixed to the control point in formula, prevents absolute altitude and levelness from changing.
A kind of nuclear power station high-accuracy built-in fitting installation method, further design is: the support column uses
The round steel of long 50mm, diameter 8mm.
A kind of nuclear power station high-accuracy built-in fitting installation method, further design is: the step 5 is specific
Implementation steps include:
Step 5.1: absolute altitude reinspection being made to top band steel before final fix；
Step 5.2: the top band steel absolute altitude for not meeting required precision to absolute altitude makees secondary adjustment；
Step 5.3: top band steel is finally welded and fixed；
A kind of nuclear power station high-accuracy built-in fitting installation method, further design is: step 5.2 is specific such as
Under: it carries out the support column cutting that absolute altitude does not meet required precision position to increase support column again after secondary adjustment and fix.
A kind of nuclear power station high-accuracy built-in fitting installation method, further design is: the step 5.3 is specific
It is as follows: there are when the gap 5~20mm between lower part embedded part and top band steel, by L=200mm,Round steel, spacing is horizontal
It places and the round steel is made to be close to top band steel and lower part embedded part, be finally fixedly welded so that the round steel is fixedly connected with top band steel
In lower part embedded part；Gap between lower part embedded part and top band steel is that 0~5mm directly welds top band steel in lower part embedded part.
A kind of nuclear power station high-accuracy built-in fitting installation method, further design is: the welding manner is
Intersect interruption welding manner.
The beneficial effects of the present invention are: 1. improve the disposable installation essence of high-accuracy built-in fitting using this kind of installation method
Degree, reduction are unsatisfactory for the manpower consumption of secondary polishing caused by requiring because of precision, can utilize part stub bar of reinforced bar clout, centainly
Construction efficiency is improved in degree.2. the new process can be generalized in the high embedded part installation of same type required precision, have good
Good social application value.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
The built-in fitting of the prior art is replaced by high-accuracy built-in fitting used by the present embodiment by Fig. 1.
The positioning of the top Fig. 2 band steel and the first successive step operation principle schematic diagram of absolute altitude.
Longitudinal terminal surface structural schematic diagram when the top Fig. 3 band steel Pass line adjustment and Level-adjusting.
The side structure schematic diagram when top Fig. 4 band steel Pass line adjustment and Level-adjusting.
Fig. 5 is C-C shown in Fig. 4 to schematic diagram.
The top Fig. 6 band steel prevents deformation from fixing.
Fig. 7 is schematic diagram in A-A direction shown in Fig. 6.
The top Fig. 8 band steel is finally welded and fixed
Fig. 9 is B-B direction schematic diagram shown in Fig. 8.
Figure 10 is installed grouting schematic diagram.
Mono- group of high-precision embedded part of Figure 11 is installed figure.
Figure 12 be in Figure 11 D-D to schematic diagram.
Specific embodiment
Below in conjunction with Figure of description and specific preferred example, this patent is further described:
A kind of nuclear power station high-accuracy built-in fitting installation method, by high-accuracy built-in fitting be set to the floor layer 13 of building with
And in finishing layer 12, specifically comprise the following steps:
Step 1: as shown in Figure 1, making lower part embedded part 2 and top band steel 1, lower part embedded part bottom side edge according to force request
Length direction spacing is welded with several holdfast 2-1；
Step 2: pouring floor layer and lower part embedded part is set in floor layer；
Step 3: successive step at the beginning of carrying out positioning and absolute altitude to top band steel on the embedded part of lower part；
Step 4: top band steel being prevented on the embedded part of lower part to carry out deformation fixation；
Step 5: top band steel is fixedly welded on the embedded part of lower part；
Step 6: grouting forms finishing layer and top band steel is located in finishing layer, the upper side exposure of top band steel
In finishing layer upper side.
Step 2 is specific as follows: lower part embedded part 2 is bound in the reinforcing bar of floor layer, is poured simultaneously admittedly after accurate positioning with floor
It is fixed, so that the lower part embedded part is placed in floor layer；Due to subsequent also to the absolute altitude of top band steel and the adjustment of levelness
Step, the positioning slight change of casting process middle and lower part embedded part, on top band steel installation accuracy without influence.
Step 3 specific implementation step includes:
Step 3.1: top band steel is layed in above the embedded part of lower part；
Step 3.2: positioning and absolute altitude initial adjustment are carried out to top band steel.
Specifically, the step 3.1 includes the following steps: that top band steel is aligned laying with lower part embedded part center: respectively
It is positioned parallel to long side in the design centre of top band steel width direction center and lower part embedded part to make marks out parallel lines, peace
Guarantee the two center line alignment when dress.
The step 3.2 is included the following steps: as shown in Fig. 2, installing high-accuracy built-in fitting needed for being determined using level
360 ° of irradiation laser infrared line level meters 3 are placed on 4 position of datum mark by the datum mark 4 of floor；On installed top band steel
Scale 6 is placed, the ray 5 of laser infrared line level meter sending is mapped out on scale, according at the beginning of datum mark on successive step
The absolute altitude and levelness of portion's band steel.After the completion of one section of high-accuracy built-in fitting adjusts, next section of high-precision degree type can be carried out and buried
Part is laid with.
Step 4 specific implementation step includes:
Step 4.1: to top band steel, spacing label is done in side along its length on it, forms several equidistant controls
Point；
Step 4.2: absolute altitude and levelness to top band steel make accurate adjustment；
Step 4.3: top band steel is tentatively fixed on lower part embedded part.
Specifically, the step 4.2 is specific as follows: as shown in Figure 3-Figure 5, using the control of level and binding marker
Point real-time segmentation adjustment top band steel absolute altitude and levelness；Absolute altitude and Level-adjusting are cooperated using wedge-shaped iron 10 and U-shaped iron 11
Adjustment, specifically, two wedge-shaped iron are symmetrical arranged at each control point in lower width direction of top band steel, it is flat on top
Other wedge-shaped iron is set between the upper side of steel and U-shaped iron；It can be by upper while to be lifted to the formation of top band steel
Wedge-shaped iron at lower two is adjusted the levelness and absolute altitude of band steel；Two or more the top band steels being parallel to each other are one
Group, the high-precision embedded part between one group is using 1m as in the region of radius, height difference is less than or equal to 1mm.
The step 4.3 is specific as follows: as Figure 6-Figure 7, after the absolute altitude and levelness of top band steel are met the requirements
Support column 7 is placed perpendicular to lower part embedded part spacing, 7 upper end of support column is connect with top band steel spot welding, and support column lower end is under
Portion's embedded part spot welding connection.After the completion of one group of high-accuracy built-in fitting is laid in place, each group of high-accuracy built-in fitting is carried out accurate
Support is fixed to the control point using support column form immediately after one control point meets positioning and absolute altitude requirement in adjustment,
Prevent absolute altitude and levelness from changing.
Wherein, the support column uses the round steel of long 50mm, diameter 8mm.
Step 5 specific implementation step includes:
Step 5.1: absolute altitude reinspection being made to top band steel before final fix；
Step 5.2: the top band steel absolute altitude for not meeting required precision to absolute altitude makees secondary adjustment；
Step 5.3: top band steel is finally welded and fixed；
Wherein, step 5.2 is specific as follows: the support column cutting that absolute altitude does not meet required precision position is carried out secondary adjustment
Increase support column again afterwards to fix.
The step 5.3 is specific as follows: in conjunction with shown in Fig. 8-Fig. 9, there are 5~20mm between lower part embedded part and top band steel
When gap, by L=200mm,Round steel 9, spacing be horizontally arranged and make the round steel 9 at the same be close to top band steel under
Portion's embedded part is finally fixedly welded so that the round steel is fixedly connected with top band steel in lower part embedded part；Lower part embedded part and top band steel it
Between gap be 0~5mm directly weld top band steel in lower part embedded part.Wherein, the welding manner is to intersect interruption welding side
Formula.
It is finally fixedly welded after the embedded part of lower part in top band steel, carries out the setting of finishing layer；If using at this time pre-
Molding finishing layer then as shown in Figure 10 reserves grout gap 16 between preforming finishing layer and high-accuracy built-in fitting, and
It is in the milk afterwards to grout gap, so that top band steel is fixed in finishing layer.
Finally after the solidification of finishing layer and hardness reach requirement, as shown in Figure 11-Figure 12, set on high-accuracy built-in fitting
Set corresponding precision equipment pedestal 15.
Claims (14)
1. high-accuracy built-in fitting is set to the floor layer and dress of building by a kind of nuclear power station high-accuracy built-in fitting installation method
Repair in layer that it is characterized by comprising following steps:
Step 1: lower part embedded part and top band steel are made according to force request；
Step 2: pouring floor layer and lower part embedded part is set in floor layer；
Step 3: successive step at the beginning of carrying out positioning and absolute altitude to top band steel on the embedded part of lower part；
Step 4: top band steel being prevented on the embedded part of lower part to carry out deformation fixation；
Step 5: top band steel is fixedly welded on the embedded part of lower part；
Step 6: grouting forms finishing layer and top band steel is located in finishing layer, and the upper side of top band steel is exposed to dress
Repair a layer upper side.
2. a kind of nuclear power station high-accuracy built-in fitting installation method according to claim 1, it is characterised in that: lower part embedded part bottom
Lateral edge length direction spacing is welded with several holdfasts.
3. a kind of nuclear power station high-accuracy built-in fitting installation method according to claim 1 or 2, it is characterised in that: step 2
Specific as follows: lower part embedded part is bound in the reinforcing bar of floor layer, fixation is poured simultaneously with floor after accurate positioning, so that the lower part
Embedded part is placed in floor layer.
4. a kind of nuclear power station high-accuracy built-in fitting installation method according to claim 1, it is characterised in that: the step
3 specific implementation steps include:
Step 3.1: top band steel is layed in above the embedded part of lower part；
Step 3.2: positioning and absolute altitude initial adjustment are carried out to top band steel.
5. a kind of nuclear power station high-accuracy built-in fitting installation method according to claim 5, it is characterised in that: the step
3.1 include the following steps: that top band steel is aligned laying with lower part embedded part center: respectively in top band steel width direction center
And the design centre of lower part embedded part is positioned parallel to long side and makes marks out parallel lines, when installation, both guarantees center line alignment.
6. a kind of nuclear power station high-accuracy built-in fitting installation method according to claim 5, it is characterised in that: the step
3.2 include the following steps: the datum mark of installation high-accuracy built-in fitting floor needed for determining using level, by 360 ° of irradiation laser
Infrared ray gradienter is placed on reference point location；Scale is placed on installed top band steel, it is red that laser is mapped out on scale
The ray that outside line level meter issues, according to the absolute altitude and levelness of successive step top band steel at the beginning of datum mark.
7. a kind of nuclear power station high-accuracy built-in fitting installation method according to claim 1, it is characterised in that: the step
4 specific implementation steps include:
Step 4.1: spacing label is done along its length to top band steel；
Step 4.2: absolute altitude and levelness to top band steel make accurate adjustment；
Step 4.3: top band steel is tentatively fixed on lower part embedded part.
8. a kind of nuclear power station high-accuracy built-in fitting installation method according to claim 8, it is characterised in that: the step
4.2 is specific as follows: using the control point real-time segmentation of level and binding marker adjustment top band steel absolute altitude and levelness；Absolute altitude
And Level-adjusting is using wedge-shaped iron and the cooperation adjustment of U-shaped iron；Between two or more the top band steels being parallel to each other are one group, one group
High-precision embedded part using 1m as in the region of radius, height difference is less than or equal to 1mm.
9. a kind of nuclear power station high-accuracy built-in fitting installation method according to claim 8, it is characterised in that: the step
4.3 is specific as follows: the absolute altitude and levelness of top band steel place support column perpendicular to lower part embedded part spacing after meeting the requirements,
Upper end is connect with top band steel spot welding, and lower end is connect with lower part embedded part spot welding.
10. a kind of nuclear power station high-accuracy built-in fitting installation method, feature according to claim 8-10 any one exist
In: the support column uses the round steel of long 50mm, diameter 8mm.
11. a kind of nuclear power station high-accuracy built-in fitting installation method according to claim 1, it is characterised in that: the step
Rapid 5 specific implementation step includes:
Step 5.1: absolute altitude reinspection being made to top band steel before final fix；
Step 5.2: the top band steel absolute altitude for not meeting required precision to absolute altitude makees secondary adjustment；
Step 5.3: top band steel is finally welded and fixed.
12. a kind of nuclear power station high-accuracy built-in fitting installation method according to claim 12, it is characterised in that: step 5.2
It is specific as follows: to carry out the support column cutting that absolute altitude does not meet required precision position to increase support column again after secondary adjustment and consolidate
It is fixed.
13. a kind of nuclear power station high-accuracy built-in fitting installation method according to claim 13, it is characterised in that: the step
5.3 is specific as follows: there are when the gap 5~20mm between lower part embedded part and top band steel, by L=200mm,Round steel, it is fixed
Away from being horizontally arranged and the round steel being made to be close to top band steel and lower part embedded part, finally it is fixedly welded so that the round steel is fixedly connected
Portion's band steel is in lower part embedded part；Top band steel is directly welded for 0~5mm and is buried in lower part in gap between lower part embedded part and top band steel
Part.
14. a kind of nuclear power station high-accuracy built-in fitting installation method, feature described in 2-14 any one exist according to claim 1
In: the welding manner is to intersect interruption welding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810394169.8A CN108951883B (en) | 2018-04-27 | 2018-04-27 | High-precision embedded part installation method for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810394169.8A CN108951883B (en) | 2018-04-27 | 2018-04-27 | High-precision embedded part installation method for nuclear power station |
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| Publication Number | Publication Date |
|---|---|
| CN108951883A true CN108951883A (en) | 2018-12-07 |
| CN108951883B CN108951883B (en) | 2020-05-12 |
Family
ID=64499534
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810394169.8A Active CN108951883B (en) | 2018-04-27 | 2018-04-27 | High-precision embedded part installation method for nuclear power station |
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| Country | Link |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109958195A (en) * | 2019-01-18 | 2019-07-02 | 中国核工业华兴建设有限公司 | A kind of nuclear power station heap container supporting embedded part construction method |
| CN113338326A (en) * | 2021-05-12 | 2021-09-03 | 中核工程咨询有限公司 | Support device and method |
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| CN106758562A (en) * | 2017-04-08 | 2017-05-31 | 中国二十二冶集团有限公司 | The installation method that track foundation built-in fitting is integrally fixed with track |
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| CN202099878U (en) * | 2011-04-29 | 2012-01-04 | 铁道第三勘察设计院集团有限公司 | Embedded part for evacuation platform of magnetic suspension project |
| CN102650135B (en) * | 2012-05-18 | 2014-12-17 | 中国十七冶集团有限公司 | Method for leveling embedded parts at bottom of vertical column in sintered ring cooling machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108951883B (en) | 2020-05-12 |
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