CN106759116B - A kind of method for repairing and mending in the roomy crack of concrete - Google Patents
A kind of method for repairing and mending in the roomy crack of concrete Download PDFInfo
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- CN106759116B CN106759116B CN201710003539.6A CN201710003539A CN106759116B CN 106759116 B CN106759116 B CN 106759116B CN 201710003539 A CN201710003539 A CN 201710003539A CN 106759116 B CN106759116 B CN 106759116B
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- concrete
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- inclined hole
- grouting
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The present invention relates to a kind of method for repairing and mending in the roomy crack of concrete.The object of the present invention is to provide a kind of method for repairing and mending in the roomy crack of concrete, it is intended to improve the repairing efficiency in the roomy crack of concrete, the safety and reliability of enhancement engineering operation, with good economic efficiency and application prospect.The technical scheme is that a kind of method for repairing and mending in the roomy crack of concrete, it is characterised in that the following steps are included: 1, surface clean；2, the arrangement of grouting inclined hole；3, raggle；4, filler；5, it is in the milk；6, crack is protected.The present invention is suitable for the roomy crack treatment engineerings of concrete such as Face Slab of Concrete-faced Rockfill, gate pier.
Description
Technical field
The present invention relates to a kind of method for repairing and mending in the roomy crack of concrete, are primarily adapted for use in concrete face rockfill dam face
The roomy crack treatment engineering of the concrete such as plate, gate pier.
Background technique
Concrete is widely applied in engineering as basic building materials, but due to structure stress condition, foundation deformation, temperature
The factors such as control often result in it and generate crack.It is general in engineering to classify according to the width in crack, depth and through condition etc.:
I class crack (Shallow crack): surface slit width δ≤0.2mm and not through；
II class crack: surface slit width 0.2mm < δ≤0.5mm and not through or slit width δ≤0.2mm and for through seam；
III class crack: the surface crack slit width δ >=0.5mm or slit width δ >=0.2mm and for through seam.
In above-mentioned three classes crack, I class and II class fracture unit are relatively easy, and construction technology is convenient, the effect ratio of repairing
It is more satisfactory；But the IIIth class crack is since its slit width is larger, filleting relatively deeply or to structure there are penetrability, is defined as " width
Large fracture ".This kind of crack is larger to the harm of structure, and the normal operation of building is influenced when serious, for this purpose, each designing institute or applying
Work order position a variety of processing schemes are formulated, but effect is totally not ideal enough according to the loading characteristic of structure；That is, engineering
The middle roomy fracture unit of concrete still has certain difficulty.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above problems, a kind of roomy crack of concrete is provided
Method for repairing and mending, it is intended to improve the repairing efficiency in the roomy crack of concrete, the safety and reliability of enhancement engineering operation has good
Good economic benefit and application prospect.
The technical scheme adopted by the invention is that: a kind of method for repairing and mending in the roomy crack of concrete, it is characterised in that including
Following steps:
1, surface clean: before mending concrete crack, wire brushing concrete surface, and rinsed and mixed with giant
Solidifying soil cracking seam surface is clean by loose surface, silt and Fouling Cleaning；
2, it the arrangement of grouting inclined hole: is drilled in distress in concrete two sides in blossom type cloth by the way of across the inclined borehole that sews cloth
The grouting inclined hole set, and length of embedment h1 is crack depth of concrete half and the inclined hole for passing through the crack in grouting inclined hole
Grout pipe；
3, raggle: extend 10~15cm chisel U on concrete surface centered on distress in concrete and along crack to both ends
Type groove；
4, filler: by eliminating impurities in U-type groove and rinsing well, after basal plane is completely dried, in U-type groove bottom and two sides
One layer of mating primer of SR is first brushed, after primer dry tack free, will be cut into the SR filler filling U-type groove of suitable shape, and press
It is organized into smooth surface in fact；
5, be in the milk: opposite joint face hole-specifically carries out water, wind wheel changes flushing before grouting, by grouting inclined hole and distress in concrete seam face
Dust rinse post-grouting well, grouting pressure controls between 0.2~0.5MPa, after each grouting inclined hole is in the milk, and
When the hole nozzle of inclined hole grout pipe is pricked dead with leather hose or has closed aperture with other methods, after grout cures, cut off aperture
Pipe, is then smoothed out surface with SR filler；
6, crack is protected: using ethylene-propylene-diene monomer glue-type SR antiseepage cover plate, to treated, distress in concrete is protected,
Before pasting SR antiseepage cover plate, concrete surface is cleaned out to and is ensured its drying, then needing to paste SR antiseepage cover plate
Brush the mating primer of SR in concrete surface position.
The pitch-row d1 of the grouting inclined hole is 0.4~0.6m, and aperture is not less than 16mm, the center line and coagulation of the inclined hole that is in the milk
The horizontal distance d2 of soil cracking seam is 10~20cm, and grouting inclined hole and distress in concrete angle are 45 °~60 °；The inclined hole grouting
Pipe is firmly bonded using epoxy glue solution, and the hole nozzle periphery of the grout pipe is sealed using SR filler.
The width of rebate d3 of the U-type groove is 10cm, and depth h2 is 5cm.
The beneficial effects of the present invention are: the present invention is to solve the problems, such as the repairing in concrete " roomy crack ", with reference to domestic and international
To the repairing experience in the roomy crack of the concrete such as Face Slab of Concrete-faced Rockfill, gate pier in a large amount of engineerings, a kind of knot is proposed
The method for repairing and mending in the roomy crack of concrete that structure is simple, construction is convenient, safe and reliable；Improve the repairing in the roomy crack of concrete
Efficiency has stronger practicability, good economic benefit and application prospect, can provide for the crack treatment of subsequent similar engineering
With reference to.
Detailed description of the invention
Fig. 1 is plan view of the invention；
Fig. 2 is diagrammatic cross-section of the invention；
Fig. 3 is partial enlarged view of the invention.
Specific embodiment
As shown in Figure 1, Figure 2 and Figure 3, the present embodiment is a kind of method for repairing and mending in the roomy crack of concrete, it is characterised in that
The following steps are included:
1, surface clean: before mending concrete crack 102, wire brushing concrete surface 101, and use giant
102 surface of distress in concrete is rinsed, loose surface, silt, dirt etc. are cleaned up, polished when necessary with angle grinder；
2, the arrangement of grouting inclined hole 1: for concrete " roomy crack ", in concrete by the way of across the inclined borehole that sews cloth
102 two sides of crack are drilled with the grouting inclined hole 1 arranged in blossom type, and length of embedment h1 is distress in concrete in grouting inclined hole 1
102 depth half or so, using pass through the crack as the inclined hole grout pipe 2 of principle；
The pitch-row d1 of grouting inclined hole 1 is generally 0.4~0.6m, and aperture is not less than 16mm, the center line for the inclined hole 1 that is in the milk and mixed
The horizontal distance d2 of solidifying soil cracking seam 102 is 10~20cm, and grouting inclined hole and 102 angle theta of distress in concrete are 45 °~60 °；
Inclined hole grout pipe 2 is firmly bonded using epoxy glue solution, and hole nozzle surrounding is sealed using SR filler 4, it is ensured that grout pipe
Periphery is in sealing state；
3, raggle: for the concrete for removing the breakage of 102 periphery of distress in concrete, thorough closed concrete crack 102, mixed
Extend 10~15cm chisel U-type groove 3, U-type groove 3 on solidifying soil matrix face 101 centered on distress in concrete 102 and along crack to both ends
Width of rebate d3 be generally 10cm or so, depth h2 is generally 5cm or so；During digging U-type groove, it should take and accordingly arrange
It applies, reduces the damage that the factors such as construction vibration cause periphery concrete surface 101；
4, filler: by eliminating impurities in U-type groove 3 and rinsing well, after basal plane is completely dried, in 3 bottom of U-type groove and two
One layer of mating primer of SR is first brushed in side, and after primer dry tack free, SR filler 4 is cut into suitable shape (SR filler main performance
1) index, which is shown in Table, to be inserted in U-type groove 3, and be compacted be organized into smooth surface；The SR filler 4 of pointing should be with concrete surface 101
Boundary face contact is good, it is ensured that sealing avoids grouting slurries from emerging along contact surface；
Table 1SR plastic filler main performance index
5, be in the milk: grouting before opposite joint face hole-specifically carries out water, wind wheel changes flushings, will be in the milk inclined hole 1 in and distress in concrete 102
The dust in seam face is rinsed well, and finds out that inclined hole grout pipe 2 is unimpeded, seam face is ganged up and filleting leakage situation；After the completion of flushing, answer
Valve on all hole mouths is fully open, with compressed air will be in the milk inclined hole 1 in, the ponding in distress in concrete 102 blow it is crowded
Completely, seam face is made to reach dry or anhydrous state；Grouting pressure controls between 0.2~0.5MPa, practical according to coagulation soil cracking
Width, infusion time and the groundwater increment of seam 102 carry out comprehensively control, can also be determined according to industrial experimentation；
After each grouting inclined hole 1 is in the milk, the hole nozzle of inclined hole grout pipe 2 is pricked with leather hose in time dead or with other sides
Method has closed aperture；After grout cures, orifice tube is cut off, is then smoothed out surface with SR filler 4；
6, crack is protected: using ethylene-propylene-diene monomer glue-type SR antiseepage cover plate 5, to treated, distress in concrete 102 is protected
Shield (SR antiseepage cover plate main performance index is shown in Table 2) must clean out concrete surface 101 before pasting SR antiseepage cover plate 5
And ensures its drying, brushes the mating primer of SR at 101 position of concrete surface for needing to paste SR antiseepage cover plate 5.
Table 2SR antiseepage cover plate main performance index
Claims (3)
1. a kind of method for repairing and mending in the roomy crack of concrete, it is characterised in that the following steps are included:
1.1, surface clean: before mending concrete crack (102), wire brushing concrete surface (101), and use high pressure water
Rifle rinses distress in concrete (102) surface, and loose surface, silt and Fouling Cleaning is clean；
1.2, it the arrangement of grouting inclined hole (1): is drilled in distress in concrete (102) two sides in plum by the way of across the inclined borehole that sews cloth
The grouting inclined hole (1) of flower pattern arrangement, and be distress in concrete (102) depth half, simultaneously in grouting inclined hole (1) interior length of embedment h1
Inclined hole grout pipe (2) across the crack；
1.3, raggle: extend 10 on concrete surface (101) centered on distress in concrete (102) and along crack to both ends
~15cm digs U-type groove (3)；
1.4, it filler: by eliminating impurities in U-type groove (3) and rinses well, after basal plane is completely dried, in U-type groove bottom and two
One layer of mating primer of SR is first brushed in side, after primer dry tack free, will be cut into SR filler (4) filling U-type groove (3) of suitable shape
It is interior, and be compacted be organized into smooth surface；
1.5, be in the milk: opposite joint face hole-specifically carries out water, wind wheel changes flushings before grouting, will grouting inclined hole (1) is interior and distress in concrete
(102) dust for stitching face rinses post-grouting well, and grouting pressure controls between 0.2~0.5MPa, and each grouting inclined hole (1) fills
After slurry, in time the hole nozzle of inclined hole grout pipe (2) is pricked dead with leather hose or closed aperture with other methods, it is solidifying to slurries
After Gu, orifice tube is cut off, is then smoothed out surface with SR filler (4)；
1.6, crack is protected: using ethylene-propylene-diene monomer glue-type SR antiseepage cover plate (5), to treated, distress in concrete (102) is carried out
Protection, before pasting SR antiseepage cover plate (5), cleans out and ensures its drying for concrete surface (101), then needing to paste
Brush the mating primer of SR in concrete surface (101) position of SR antiseepage cover plate (5).
2. a kind of method for repairing and mending in the roomy crack of concrete according to claim 1, it is characterised in that: the grouting inclined hole
(1) pitch-row d1 is 0.4~0.6m, and aperture is not less than 16mm, the center line for the inclined hole that is in the milk and the level of distress in concrete (102)
Distance d2 is 10~20cm, and grouting inclined hole and distress in concrete (102) angle are 45 °~60 °；The inclined hole grout pipe (2) is adopted
It is firmly bonded with epoxy glue solution, the hole nozzle periphery of the grout pipe is sealed using SR filler (4).
3. a kind of method for repairing and mending in the roomy crack of concrete according to claim 1 or 2, it is characterised in that: the U-type groove
(3) width of rebate d3 is 10cm, and depth h2 is 5cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003539.6A CN106759116B (en) | 2017-01-04 | 2017-01-04 | A kind of method for repairing and mending in the roomy crack of concrete |
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| CN201710003539.6A CN106759116B (en) | 2017-01-04 | 2017-01-04 | A kind of method for repairing and mending in the roomy crack of concrete |
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| CN106759116A CN106759116A (en) | 2017-05-31 |
| CN106759116B true CN106759116B (en) | 2019-06-14 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107326868A (en) * | 2017-07-17 | 2017-11-07 | 江苏艺博防水防腐工程有限公司 | A kind of large reservoir concrete dam body fracture plugging method |
| CN108386005A (en) * | 2018-04-08 | 2018-08-10 | 中国电建集团成都勘测设计研究院有限公司 | Repairing concrete crack structure and method for repairing and mending |
| CN108755334A (en) * | 2018-06-11 | 2018-11-06 | 中水电第十工程局（郑州）有限公司 | A kind of method that concrete road planar defect is quickly repaired |
| CN108952206A (en) * | 2018-09-07 | 2018-12-07 | 中铁十四局集团第四工程有限公司 | A kind of restorative procedure in the discontinuous crack of concrete construction body |
| CN112281768A (en) * | 2020-10-13 | 2021-01-29 | 西安理工大学 | Method for repairing spillway high-speed water flow deep large pit |
| CN113294008B (en) * | 2021-05-29 | 2022-07-29 | 重庆海发工程项目管理咨询有限公司 | Building crack repairing method |
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| RU2234567C1 (en) * | 2003-04-28 | 2004-08-20 | Государственное научное учреждение Поволжский научно-исследовательский институт эколого-мелиоративных технологий | Method for sealing functional joints of hydraulic structures, functional joints (variants) and glue composition for sealing thereof |
| CN105274967A (en) * | 2014-05-30 | 2016-01-27 | 江海滢 | Repairing method for hydraulic concrete crack |
| CN105239789A (en) * | 2015-10-25 | 2016-01-13 | 赵涛 | Construction process for plugging and consolidating concrete crack through chemical grouting |
| CN105442863B (en) * | 2015-11-23 | 2016-07-06 | 广东赛力克建筑技术工程有限公司 | A kind of concrete structure crack method for repairing and mending |
| CN105714739B (en) * | 2016-02-01 | 2017-12-12 | 辽宁省水利水电科学研究院 | Preventing secondary cracking process of repairing in fluting method seepage treatment |
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