CN103981909B - Fast repairing method after crack on anchor bolt and structure - Google Patents
Fast repairing method after crack on anchor bolt and structure Download PDFInfo
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- CN103981909B CN103981909B CN201410250191.7A CN201410250191A CN103981909B CN 103981909 B CN103981909 B CN 103981909B CN 201410250191 A CN201410250191 A CN 201410250191A CN 103981909 B CN103981909 B CN 103981909B
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Abstract
The invention discloses a kind of maintenance of equipment field, the fast repairing method after especially a kind of crack on anchor bolt and structure.The invention provides and a kind ofly need not remove the fast repairing method after the crack on anchor bolt of former concrete foundation completely, comprise the following steps: A, at fracture stone bolt, concrete to be chiseled, to take out stand by the stand surrounding of closing; Then the concrete around fracture stone bolt is chiseled; B, the breaking portion of fracture stone bolt to be cut off, and the end face of stone bolt to be polished flat, bevel; C, adjust screw connection and original place foot bolt axiality after will both coaxial welding; D, fixed cover is enclosed within screw connection and stone bolt, then along the welding of welding vertical slot, fixed cover, screw connection and stone bolt three is welded to each other; E, again fluid concrete, the base surface at floating fracture stone bolt place; By installation in place for stand after F, concrete to be cast are solid, then backfill secondary grout layer.
Description
Technical field
The present invention relates to maintenance of equipment field, the fast repairing method after especially a kind of crack on anchor bolt and structure.
Background technology
Stone bolt is the vitals that equipment is fixed, after a protracted use, and the easy fatigue fracture of stone bolt.
The main way adopting the former concrete foundation of dismounting, stone bolt integral replacing, again pour into a mould basis after crack on anchor bolt.
The shortcoming of existing recovery scenario is: 1, remove former concrete foundation, engineering quantity is large.2, stone bolt integral replacing, again need make stone bolt, the cycle is long.3, again basis is poured into a mould, health, then second pouring, need the long period be expended.Stone bolt is all generally at equipment running process Fracture, can affect production, causing economic loss to producer as shut down for a long time.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind ofly need not remove the fast repairing method after the crack on anchor bolt of former concrete foundation completely.
The present invention solves the fast repairing method after the crack on anchor bolt that its technical problem adopts, and comprises the following steps:
Following preparation is completed: select the screw connection with stone bolt formed objects before step C; Make fixed cover, and offer welding vertical slot vertically on the wall of fixed cover;
A, fracture stone bolt close stand surrounding concrete is chiseled, to take out stand; Then the concrete around fracture stone bolt is chiseled;
B, the breaking portion of fracture stone bolt to be cut off, and the end face of stone bolt to be polished flat, bevel;
C, adjust screw connection and original place foot bolt axiality after will both coaxial welding;
D, fixed cover is enclosed within screw connection and stone bolt, then along the welding of welding vertical slot, fixed cover, screw connection and stone bolt three is welded to each other;
E, again fluid concrete, the base surface at floating fracture stone bolt place;
By installation in place for stand after F, concrete to be cast are solid, then backfill secondary grout layer.
Further, described fixed cover offers at least two welding vertical slots, and weld vertical slot and be uniformly distributed along the circumference of fixed cover.
Further, in preparation, also make foundation slab, described foundation slab is provided with fixing trepanning and anchor (bolt) hole; In D step, after having welded fixed cover, be welded and located on fixed cover by the fixed cover hole of foundation slab, anchor (bolt) hole cover is set on intact stone bolt.
Further, described foundation slab is also provided with plug hole.
Further, described foundation slab is also provided with reinforcing rib, described reinforcing rib is welded on around fixed cover.
In addition, another technical problem that will solve of the present invention is the quick repair structure after need not removing the crack on anchor bolt of former concrete foundation completely.
Present invention also offers the quick repair structure after a kind of crack on anchor bolt, comprise the stone bolt remnants of defeated troops, also comprise screw connection, fixed cover and pouring layer, described screw connection has identical size with the stone bolt remnants of defeated troops, and welding vertical slot offered vertically by the wall of described fixed cover; Described screw connection and stone bolt remnants of defeated troops coaxial welding; Described fixed cover is enclosed within screw connection and stone bolt, and by making three interfix along the welding of welding vertical slot; Described fixed cover covers by described pouring layer.
Further, described fixed cover offers at least two welding vertical slots, and weld vertical slot and be uniformly distributed along the circumference of fixed cover.
Further, also comprise foundation slab and intact stone bolt, described foundation slab is provided with fixing trepanning and anchor (bolt) hole, the fixed cover hole of foundation slab is welded and located on fixed cover, and anchor (bolt) hole is set on intact stone bolt.
Further, described foundation slab is also provided with plug hole.
Further, described foundation slab is also provided with reinforcing rib, described reinforcing rib is welded on around fixed cover.
The invention has the beneficial effects as follows: the basis that present invention utilizes original fracture stone bolt; and repair original stone bolt by screw connection and fixed cover; so only need remove part and the part concrete foundation of crack on anchor bolt; therefore downtime is shortened; a large amount of human and material resources can be saved, decrease the economic loss of producer.The structure of screw connection and fixed cover can provide enough intensity, makes the intensity of the new stone bolt repaired be not less than original stone bolt.All right sheathed foundation slab on fixed cover, more firm when pouring into a mould so simultaneously.Foundation slab can also arrange reinforcing rib, and reinforcing rib can be utilized so original intact stone bolt and the new stone bolt repaired to be reinforced, and that improves each bolt is subject to force intensity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A direction view of Fig. 1;
Fig. 3 is the schematic diagram of screw connection;
Fig. 4 is the schematic diagram of fixed cover;
Fig. 5 is the A-A line sectional view of Fig. 4;
Fig. 6 is the schematic diagram of foundation slab;
Component, position and numbering in figure: screw connection 1, fixed cover 2, the stone bolt remnants of defeated troops 3, foundation slab 4, reinforcing rib 5, welding vertical slot 6.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, comprise the stone bolt remnants of defeated troops 3 and screw connection 1, fixed cover 2 and pouring layer, described screw connection 1 has identical size with the stone bolt remnants of defeated troops 3 to structure of the present invention, the wall of described fixed cover 2 is offered vertically welding vertical slot 6; Described screw connection 1 and the stone bolt remnants of defeated troops 3 coaxial welding; Described fixed cover 2 is enclosed within screw connection 1 and stone bolt, and by making three interfix along the welding of welding vertical slot 6; Described fixed cover 2 covers by described pouring layer.Stone bolt is installed due to it, and its fracture substantially all occurs in base surface place, and its part being embedded in below base surface is all intact, and the present invention utilizes this feature to avoid integral replacing bolt just.Screw connection 1 of the present invention and fixed cover 2 all can make in advance, repair with for subsequent use.Screw connection 1, specifically can as shown in Figure 3 with common screw rod and unsubstantial difference, and screw connection 1 need be selected according to the size of the foot bolt remnants of defeated troops 3, and its length also needs the function length reaching original stone bolt, with practical function simultaneously.Fixed cover 2 has welding vertical slot 6, and it is set to the stone bolt remnants of defeated troops 3 and screw connection 1 at cover and welding vertical slot 6 can be utilized to carry out welding.Fixed cover 2 can strengthen the intensity of the stone bolt remnants of defeated troops 3 and screw connection 1, thus makes the new stone bolt repaired can reach the intensity of integrally foot bolt.The structure of fixed cover 2 can see shown in Fig. 4 and Fig. 5, and the welding vertical slot 6 on fixed cover 2 can magnitude setting according to specific circumstances, and be provided with three welding vertical slots 6 in the diagram, welding vertical slot 6 runs through the wall of fixed cover 2.
In order to increase the fixing intensity of cast, as shown in figs. 1 and 6, also comprise foundation slab 4 and intact stone bolt, described foundation slab 4 is provided with fixing trepanning and anchor (bolt) hole, the fixed cover hole of foundation slab 4 is welded and located on fixed cover 2, and anchor (bolt) hole is set on intact stone bolt.Each stone bolt couples together by foundation slab 4, thus forms more reliable and more stable structure, after being cast, can increase overall intensity; Foundation slab 4 is also provided with plug hole, concrete can be made to enter into plug hole, be connected tightr with foundation slab 4.
In order to increase the intensity of fixed cover 2, as shown in Figure 1, described foundation slab 4 is also provided with reinforcing rib 5, described reinforcing rib 5 is welded on fixed cover 2 around.
Said structure can adopt following methods to implement:
1. stone bolt is hung concrete foundation the stand closed;
2. along stand surrounding, concrete is chiseled, the degree of depth guarantee to put foundation slab into and after ensureing round steel or reinforcing bar welding its upper surface not higher than surface of base.Chisel the concrete around fracture stone bolt, the degree of depth that the hole degree of depth can be welded to fixed cover 2 lower end.Chisel size can put fixed cover 2 into and according to general welding rod length can inclined weld to the lower surface of fixed cover 2, as shown in Figure 1;
3. fall on the ground foot bolt breaking cutting off apart from suitable distance place, basic top, polished flat by bolt end face, bevel is used as weld seam;
4. make and break and fall on the ground the onesize screw connection of foot bolt, material is identical with stone bolt, as shown in Figure 3.Screw connection length, guarantees tight stand, and welding end is changed into oblique angle is used as weld seam.
5. make fixed cover 2, in order to ensure the axiality newly doing screw connection and original place foot bolt, the aperture of fixed cover 2 is slightly larger than the diameter of former foundation bolt, and bore depth gets about 5 times of screw diameter; Symmetry opens 3 welding vertical slots vertically, and its length is slightly less than hole depth, and pore wall thickness and vertical slot width are as shown in Figure 5.In order to ensure welding performance, fixed cover selects material identical with stone bolt.Screw thread in the screw connection of processing is wrapped with thin sheet asbestos, in order to avoid electric welding hurts screw thread.
6. clean and repair around stone bolt, adjusting screw connection and weld with after the axiality of original place foot bolt.In order to ensure that fixed cover 2 is by weld seam, finishing weld seam makes outside diameter be equal to or less than the diameter of bolt.
7. fixed cover 2 is enclosed within screw connection 1 and stone bolt by position shown in Fig. 1, ensures that fixed cover 2 upper surface is to base surface size.First in two ends welding, then along the welding of three of screw rod welding vertical slots.
8. make foundation slab as shown in Figure 6.On foundation slab, hole is made for the ease of grouting.Concrete foundation face is polished flat, foundation slab 4 is enclosed within four stone bolt of stand, and the hole that fixed cover 2 matches must be enclosed within fixed cover 2.Fixed cover 2 together with the full weld of foundation slab 4 upper end.Outside for fixed cover 2, its excess-three stone bolt is welded on steel plate, to do reinforcing rib after being welded and fixed with four staggered screw-thread steels or round steel shown in Fig. 1 again.
9. fluid concrete again, floating base surface.After solid, stand is in place, stud alignment, fastening nut;
10. backfill secondary grout layer, after maintenance, machine can put into operation.
Claims (8)
1. the fast repairing method after crack on anchor bolt, is characterized in that: comprise the following steps:
Following preparation is completed: select the screw connection (1) with stone bolt formed objects before step C; Make fixed cover (2), and on the wall of fixed cover (2), offer welding vertical slot (6) vertically; Make foundation slab (4), (4) are provided with fixing trepanning and anchor (bolt) hole with described foundation slab;
A, fracture stone bolt close stand surrounding concrete is chiseled, to take out stand; Then the concrete around fracture stone bolt is chiseled;
B, the breaking portion of fracture stone bolt to be cut off, and the end face of stone bolt to be polished flat, bevel;
C, adjust screw connection (1) and original place foot bolt axiality after will both coaxial welding;
D, fixed cover (2) is enclosed within screw connection (1) and stone bolt, then along welding vertical slot (6) welding, fixed cover (2), screw connection (1) and stone bolt three is welded to each other; After having welded fixed cover (2), be welded and located in the fixed cover hole of foundation slab (4) on fixed cover (2), anchor (bolt) hole cover has been set on intact stone bolt;
E, again fluid concrete, the base surface at floating fracture stone bolt place;
By installation in place for stand after F, concrete to be cast are solid, then backfill secondary grout layer.
2. the fast repairing method after crack on anchor bolt as claimed in claim 1, it is characterized in that: described fixed cover (2) offers at least two welding vertical slot (6), and weld vertical slot (6) and be uniformly distributed along the circumference of fixed cover (2).
3. the fast repairing method after crack on anchor bolt as claimed in claim 1, is characterized in that: (4) are also provided with plug hole with described foundation slab.
4. the fast repairing method after crack on anchor bolt as claimed in claim 1, it is characterized in that: described foundation slab (4) is also provided with reinforcing rib (5), described reinforcing rib (5) is welded on fixed cover (2) around.
5. the quick repair structure after crack on anchor bolt, comprise the stone bolt remnants of defeated troops (3), it is characterized in that: also comprise screw connection (1), fixed cover (2) and pouring layer, described screw connection (1) has identical size with the stone bolt remnants of defeated troops (3), the wall of described fixed cover (2) is offered vertically welding vertical slot (6); Described screw connection (1) and the stone bolt remnants of defeated troops (3) coaxial welding; Described fixed cover (2) is enclosed within screw connection (1) and stone bolt, and by making three interfix along welding vertical slot (6) welding; Described fixed cover (2) covers by described pouring layer; Also comprise foundation slab (4) and intact stone bolt, (4) are provided with fixing trepanning and anchor (bolt) hole with described foundation slab, the fixed cover hole of foundation slab (4) is welded and located on fixed cover (2), and anchor (bolt) hole is set on intact stone bolt.
6. the quick repair structure after crack on anchor bolt as claimed in claim 5, it is characterized in that: described fixed cover (2) offers at least two welding vertical slot (6), and weld vertical slot (6) and be uniformly distributed along the circumference of fixed cover (2).
7. the quick repair structure after crack on anchor bolt as claimed in claim 5, is characterized in that: (4) are also provided with plug hole with described foundation slab.
8. the quick repair structure after crack on anchor bolt as claimed in claim 5, it is characterized in that: described foundation slab (4) is also provided with reinforcing rib (5), described reinforcing rib (5) is welded on fixed cover (2) around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410250191.7A CN103981909B (en) | 2014-06-06 | 2014-06-06 | Fast repairing method after crack on anchor bolt and structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410250191.7A CN103981909B (en) | 2014-06-06 | 2014-06-06 | Fast repairing method after crack on anchor bolt and structure |
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| Publication Number | Publication Date |
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| CN103981909A CN103981909A (en) | 2014-08-13 |
| CN103981909B true CN103981909B (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410250191.7A Active CN103981909B (en) | 2014-06-06 | 2014-06-06 | Fast repairing method after crack on anchor bolt and structure |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107457525B (en) * | 2017-08-15 | 2019-07-02 | 攀钢集团西昌钢钒有限公司 | A kind of embedded part bolt prosthetic device and restorative procedure |
| CN109797774A (en) * | 2019-03-25 | 2019-05-24 | 中国二十二冶集团有限公司 | The processing method of equipment basic pre-buried bolt thread curtailment |
| CN111644804B (en) * | 2020-06-30 | 2021-11-09 | 中国华电科工集团有限公司 | Method for repairing broken foundation bolt of ship unloader base |
| CN113732411B (en) * | 2021-09-16 | 2022-09-16 | 中广核工程有限公司 | Method for manufacturing screw member and screw processing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5163775A (en) * | 1990-10-29 | 1992-11-17 | Rowan Jr Robert L | Anchor bolt repair coupling |
| CN101776196A (en) * | 2007-08-16 | 2010-07-14 | 中冶宝钢技术服务有限公司 | Large damaged foundation bolt butt joint method |
| CN203176644U (en) * | 2013-04-02 | 2013-09-04 | 中国十七冶集团有限公司 | Heightening device of foundation bolt elevation difference |
| JP2014055420A (en) * | 2012-09-11 | 2014-03-27 | Asahi Kasei Geotech Co Ltd | Repair method of corroded anchor bolt fixation base |
-
2014
- 2014-06-06 CN CN201410250191.7A patent/CN103981909B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5163775A (en) * | 1990-10-29 | 1992-11-17 | Rowan Jr Robert L | Anchor bolt repair coupling |
| CN101776196A (en) * | 2007-08-16 | 2010-07-14 | 中冶宝钢技术服务有限公司 | Large damaged foundation bolt butt joint method |
| JP2014055420A (en) * | 2012-09-11 | 2014-03-27 | Asahi Kasei Geotech Co Ltd | Repair method of corroded anchor bolt fixation base |
| CN203176644U (en) * | 2013-04-02 | 2013-09-04 | 中国十七冶集团有限公司 | Heightening device of foundation bolt elevation difference |
Non-Patent Citations (1)
| Title |
|---|
| 《转机地脚螺栓损坏的快速修复》;周菊华等;《维修与改造》;20070903;63-64 * |
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| CN103981909A (en) | 2014-08-13 |
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