CN100473789C - Bearing plate screw adjusting method construction process - Google Patents
Bearing plate screw adjusting method construction process Download PDFInfo
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- CN100473789C CN100473789C CNB2005101104935A CN200510110493A CN100473789C CN 100473789 C CN100473789 C CN 100473789C CN B2005101104935 A CNB2005101104935 A CN B2005101104935A CN 200510110493 A CN200510110493 A CN 200510110493A CN 100473789 C CN100473789 C CN 100473789C
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- flat bolster
- equipment
- flat
- grouting
- plate
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Abstract
It relates to the close binding of the bottom plate and the base of equipments in installation and maintenance. The screw adjusting method for basic overlay plate goes like this: a. overlay plate processing by welding a piece of steel plate for each of the four corners of the selected qualified flat overlay plate with holes in the middle of the steel plates. B. determining the height mark. c. inspect the basics by eliminating the original secondary grout blanket with the backbone of the first layer exposed and the distance between the lower surface of the flat overly plate and the original concrete layer 120-180mm. d. install the overlay plate by welding the angle steel to the backbone of the basics and welding the bolts on the flat overly plate after positioning based on the technical specifications of the flat overlay plate. E. installs the equipment. It can work a lot of work with simple process and within short time.
Description
Technical field
The invention belongs to and require equipment bay and technical fields such as basic installation of combining closely and maintenance engineering.
Background technology
Existing equipment is installed, and comprising equipment installation backing plate polishing, equipment mount pad slurry method and equipment does not have three kinds of backing plate mounting processs.Polishing is owing to be subjected to the influence of grinding precision, the mating face of flat bolster and surface of base is incomplete, cause inhomogeneous contact, the stability on influence basis, and if reach contact precision preferably, then require to have good pincers worker technician to carry out conscientious grinding and adjustment, need a large amount of time and technical force.Seat slurry method is a kind of common method that existing Equipment Foundations backing plate is installed, and in the process of centering backing plate, comes the leveling pad by instruments such as rubber hammers, easily is difficult for down, be easy to cause and do over again, and to the control inaccuracy of backing plate absolute altitude.Equipment does not have the backing plate mounting process and is extensive use of abroad, because no backing plate fastening, to the grouting material requirement height very of device bottom, domestic existing quick-dry type grouting material also is difficult to reach the requirement of bearing high-strength impact power, so seldom be applied.
In the overhaul of the equipments engineering, owing to be pressed for time, the duration is short, for the faster equipment that carries out is exactly installed, particularly for the installation of basic flat bolster, we work out a kind of mode of bolt plain cushion four-corner leveling backing plate are installed, and whole activities is called bearing plate screw adjusting method construction process.
Summary of the invention
Purpose of the present invention is exactly the improvement to present mounting technique, provides a kind of rapid constructing method of bearing plate, i.e. bearing plate screw adjusting method construction process.
Bearing plate screw adjusting method construction process of the present invention, its concrete step is:
G, flat bolster processing: select flat bolster up to specification for use, weld a block plate respectively, the center drilling of steel plate at flat bolster four jiaos;
H, mensuration absolute altitude;
I, inspection basis: all cut the former back-grouting layer of Equipment Foundations, the main muscle of once grouting layer exposed, make the flat bolster soffit arrive the distance of former layer of concrete simultaneously at 120～180mm;
J, installation flat bolster: angle steel is welded on the main muscle of Equipment Foundations,, determines the position of the bolt on steel plate, and stud weld is connected on the angle steel platform again according to the technical specification of flat bolster;
K, grouting: be in the milk to form the basis in the flat bolster bottom;
L, erection equipment.
During erection equipment, adjust taper liner, then equipment is hung in, the work that utilization wedge, jack and pre-buried center line are finished levelling, centering, looked for absolute altitude, grouting, repetition measurement at last according to the data of prior mensuration.
Beneficial effect of the present invention:
Bearing plate screw adjusting method construction process of the present invention has utilized the main muscle in the concrete once grouting layer, to be bolted on the main muscle, absolute altitude according to Instrument measuring, flat bolster is placed on suitable height, utilize four jiaos bolt to finely tune up and down, after satisfying the requirement of the levelness of equipment flat bolster and absolute altitude, the little template grouting of peripheral branch at plain cushion, form a little grouting pier, after 72 hours, just equipment can be placed and adjust, and reach requirement with all stone bolt are fastening, at last the bottom of equipment is once irritated, finish the construction on basis fast.
In maintenance engineering equipment installation process, use method of the present invention can finish the laying work of large batch of flat bolster, application has large fluidity, does not have and shrink (microdilatancy), the grouting agent of early strong characteristics more fastly, form a grouting pier, after adding a pair of combination taper liner, just directly place apparatus is finely tuned again, and is similar with the installation principle of seat slurry method mounting process, but the laying operation of flat bolster is simplified, easy and simple to handle, answer the right maintenance engineering time short, the requirement of duration urgency.
Bearing plate screw adjusting method construction process of the present invention is applicable to the installation of electromechanical equipment, the installation of workshop steel structure column, and the installation of large-scale crane door sole-plate, and require equipment bay and basic installation of combining closely and maintenance engineering etc.
Description of drawings
Fig. 1 is flat bolster processing schematic diagram.
Fig. 2 is the flat bolster scheme of installation.
The specific embodiment
Below in conjunction with accompanying drawing the rapid constructing method of bearing plate of the present invention is done and to be specified.
1, preparation of construction
1), flat bolster processing: size and equipment installation requirement according to engineering quantity are prepared necessary grouting agent, auxiliary material and Work tool, select flat bolster up to specification for use, and weld the steel plate that a block size is about 120*60*10mm respectively at flat bolster four jiaos on request, the circular hole of a φ 18mm is opened at the center of steel plate, sees Fig. 1.Also can determine the size of the steel plate that lower bolt is used according to the real size of flat bolster.
2), the mensuration of absolute altitude: be directly connected to the setting height(from bottom) of flat bolster, the coordinate position of equipment, require to be convenient to measure and adjust.
3), the inspection on basis: the former back-grouting layer of Equipment Foundations should all cut, and the main muscle of once grouting layer exposed, guarantee simultaneously the flat bolster soffit to the distance of former layer of concrete about 120～180mm, with the pier of guaranteeing to be in the milk enough bearing capacities are arranged.
2, flat bolster is installed
As shown in Figure 2, angle steel 5 is welded on the main muscle of Equipment Foundations,, determines the position of the bolt 4 on steel plate 2, bolt 4 is welded on the angle steel platform again according to the technical specification of flat bolster 1,
The upper and lower surface of the taper liner of the upper surface of flat bolster and correspondence is all answered smooth smooth, and places after cleaning up again.The adjusting of flat bolster is slightly looked for absolute altitude with instrument earlier, adjust the bolt of four jiaos of flat bolsters again, with upper and lower two nuts 3 move up and down the adjustment flat bolster, place two frame levels that precision is 0.25mm at the both direction in length and breadth of flat bolster, measure absolute altitude with level gauge again after the flat bolster levelling.Flat bolster should be reserved the absolute altitude negative common difference, is lined with surplus equipment is carried out accurate adjustment so that equipment is installed to retread.
The template that supports is reserved the space about 100mm around flat bolster, to strengthen the support force of grouting pier, will clean concrete surface, flat bolster bottom before the grouting, and wash, rinse slurry.
The stirring of grouting material, each general one bag (25kg dress) that use, the water that in agitator, adds ormal weight earlier, to make an appointment with the grouting material of half to pour in the bucket then, stirred for 10 seconds with the electric hand drill type agitator, half material that will be left is again poured in the bucket and is stirred together, begin to finish generally to be controlled in 60 seconds from feeding intake to stirring, blade should move up and down during stirring, at the bottom of making barrel and the material that adheres to of bucket wall can fully be stirred, but blade must not propose the feed liquid face that is in the milk, in order to avoid air is brought into, mixing water should be used tap water, and water temperature is advisable with 5～30 ℃.
The grouting material that stirs must pour into from the same side of equipment, discharges in order to air, and grout blanket is enriched, select a suitable perfusing hole, to guarantee that grouting continuously flows into, the grouting material will be beneficial to the adjustment of equipment installation and taper liner a little less than the upper surface of flat bolster.
To cover moistening cloth or straw bag watering (every day 4～6 times) maintenance after the grouting.Must not collide and vibrate the basis in 24 hours, striking time was carried out after 24 hours, continued maintenance after the form removal, reached the condition that equipment is installed in 72 hours.
3, equipment is installed
Data according to prior mensuration are adjusted taper liner, then equipment are hung in the work that utilization wedge, jack and pre-buried center line are finished levelling, centering, looked for absolute altitude.The equipment upper surface should be reserved the absolute altitude plus tolerance, but must not surpass plus tolerance, behind stone bolt 70%～80% design fastening force, reaches the grouting condition.
The integral body grouting of Equipment Foundations requires the same with once grouting, the concrete surface is cleaned, grouting again behind will the brushing one deck 3mm thick adhesive that foundation area is bigger, should make grouting be higher than the bottom surface of equipment bay, and in whole filling process, keep this height, stone bolt, repetition measurement Equipment Foundations base plate absolute altitude and levelness are twisted in maintenance eventually after 72 hours.
4, the selection of material
(1), the grouting material selects for use the grouting of BY series to expect that its performance indications should satisfy table 1 and require:
Grouting material the key technical indexes table 1
| Project | Degree of mobilization (%) | Expansion rate (%) | Bleeding rate (%) | Compressive strength (MPa) | Adhesion stress (MPa) with reinforcing bar | Ultimate-use (limiting service) temperature (℃) |
| |
5～8 | 0.00～ 0.04 | 0 | ≥40(3d) ≥55(28d) | ≥6.0 | 600 |
(2), select the principle of grouting material to be: 3 days compressive strength of grout blanket concrete test block must be greater than the concrete design strength 10MPa of (or equaling) Equipment Foundations.Specifically in equipment installation project, can adopt compressive strength height according to the concrete design strength of Equipment Foundations than table 1.But other index (not comprising the adhesion stress with reinforcing bar) must meet the grouting material that table 1 requires.
Claims (3)
1, a kind of bearing plate screw adjusting method construction process, its concrete step is:
A, flat bolster processing: select flat bolster up to specification for use, weld a block plate respectively, the center drilling of steel plate at flat bolster four jiaos;
B, mensuration absolute altitude;
C, inspection basis: all cut the former back-grouting layer of Equipment Foundations, the main muscle of once grouting layer exposed, make the flat bolster soffit arrive the distance of former layer of concrete simultaneously at 120～180mm;
D, installation flat bolster: angle steel is welded on the main muscle of Equipment Foundations,, determines the position of the bolt on steel plate, and stud weld is connected on the angle steel platform again according to the technical specification of flat bolster;
E, grouting: be in the milk to form the basis in the flat bolster bottom;
F, erection equipment.
2, bearing plate screw adjusting method construction process as claimed in claim 1 is characterized in that, flat bolster post-grouting material is installed must pour into from the same side of equipment, and the grouting material is a little less than the upper surface of flat bolster.
3, bearing plate screw adjusting method construction process as claimed in claim 2, it is characterized in that, used grouting material, degree of mobilization is 5～8%, and expansion rate is 0～0.04%, and bleeding rate is 0, compressive strength 〉=40MPa of 3 days, compressive strength 〉=55MPa of 28 days, with the adhesion stress 〉=6.0MPa of reinforcing bar, ultimate-use (limiting service) temperature is 600 ℃; 3 days compressive strength of grout blanket concrete test block must be more than or equal to the concrete design strength 10MPa of Equipment Foundations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101104935A CN100473789C (en) | 2005-11-17 | 2005-11-17 | Bearing plate screw adjusting method construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101104935A CN100473789C (en) | 2005-11-17 | 2005-11-17 | Bearing plate screw adjusting method construction process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1966869A CN1966869A (en) | 2007-05-23 |
| CN100473789C true CN100473789C (en) | 2009-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101104935A Expired - Fee Related CN100473789C (en) | 2005-11-17 | 2005-11-17 | Bearing plate screw adjusting method construction process |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397799B (en) * | 2007-09-28 | 2012-02-01 | 中国二十冶集团有限公司 | Flowing grouting method installed on apparatus foundation |
| CN101831917B (en) * | 2010-04-06 | 2011-08-10 | 武汉钢铁(集团)公司 | Mounting construction method of liner plates during mounting large-scale precision equipment |
| CN102535509A (en) * | 2010-12-28 | 2012-07-04 | 贵阳铝镁设计研究院有限公司 | Construction method of high-flatness equipment foundation and adjusting structure thereof |
| CN102251537A (en) * | 2011-04-28 | 2011-11-23 | 中冶建工集团有限公司 | Construction method for installing block slurry of sizing block by equipment |
| CN103016412A (en) * | 2012-12-27 | 2013-04-03 | 陕西化建工程有限责任公司 | Installation method for embedded base plate of axial flow compressor |
| CN103143907B (en) * | 2013-01-15 | 2015-07-29 | 中国核工业二三建设有限公司 | Method and the installation positioning tool of the heavy horizontal-type equipment in nuclear power station are installed |
| CN104863173B (en) * | 2015-04-21 | 2017-03-01 | 湖北省路桥集团有限公司 | Anchor ingot plate adjusting means |
| CN104989918A (en) * | 2015-05-21 | 2015-10-21 | 中冶天工集团有限公司 | Method for arranging large-area foundation sizing block |
| CN107780433A (en) * | 2016-08-27 | 2018-03-09 | 上海宝冶集团有限公司 | The flow grouting construction method of backing plate |
| CN107724415B (en) * | 2017-09-28 | 2019-05-10 | 国网山东省电力公司经济技术研究院 | A kind of falsework auxiliary mounting tool |
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2005
- 2005-11-17 CN CNB2005101104935A patent/CN100473789C/en not_active Expired - Fee Related
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| CN1966869A (en) | 2007-05-23 |
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