CN105714739A - Novel process for preventing secondary cracking repair in grooving-method leakage treatment - Google Patents
Novel process for preventing secondary cracking repair in grooving-method leakage treatment Download PDFInfo
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- CN105714739A CN105714739A CN201610067855.5A CN201610067855A CN105714739A CN 105714739 A CN105714739 A CN 105714739A CN 201610067855 A CN201610067855 A CN 201610067855A CN 105714739 A CN105714739 A CN 105714739A
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- filling
- mortar
- secondary cracking
- dove
- groove
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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
Abstract
A novel process for preventing secondary cracking repair in grooving-method leakage treatment integrates the two processes of making a set dovetail groove at the surface of a leak and filling the dovetail groove to prevent secondary cracking. Making the set dovetail groove at the surface of the leak includes making a dovetail groove with an opening width of 4 cm, a bottom width of 10 cm and a depth of 3 cm at the surface of a crack or an expansion joint; and filling the dovetail groove to prevent secondary cracking includes filling the dovetail groove with shrinkage-compensating high-performance mortar, and performing polishing treatment of the surface of the mortar after curing. A flow guiding pipe, a plastic packing and a rubber rod are arranged in the groove for flow guiding and filling, and the novel process is a groove filling process that prevents micro-cracks, reduces surface cracking, has a good bonding property, is easy in construction and is free of sagging, dropping and separation. The novel process provided by the invention can avoid mortar leakage and extruded joint mortar, improve the grouting quality and enhance the protection, repair, reinforcement and strengthening effects, and is an advanced process.
Description
Technical field
The present invention relates to Leakage Processing Technology in hydraulic engineering, particularly relate to preventing secondary cracking process of repairing in fluting method seepage treatment.
Background technology
Usual chemical grouting adopts three kinds of methods to construct, and one is surface-closed grouting method, and this method mainly uses rapid hardening inorganic plugging material first to carry out the encapsulation process of seam surface.The usually leak stopping spirit of concrete surface trowelling a layer thickness 2cm after polishing, width 10cm, after maintenance 24 hours, carries out chemical grouting, cuts the serosity of surface plugging material, cleaning seepage after grouting.This construction method, when the internal serosity propelling pressure in crack increases, is generally held
Easily in plugging material and concrete faying face place running pulp.
Another kind of method is that crack surface part closes method, namely first carries out shallow-layer chemical grouting on top layer, crack, and control slurry infiltration is internal 20～30cm to crack.Then arrange deep hole again, carry out crack deep layer grouting.Serosity after solidification encloses crack, top layer thus the serosity that deep layer is in the milk is advanced to the internal deeper wider array of region of lining concrete, and even up to the interface of concrete Yu rock, the penetrating passage of can also meeting having advances, and fills rock fracture.This method can reach the grouting effect that fluting is closed, it is possible to prevents serosity from leaking outside, but the cloth hole number of top layer grouting is greatly increased, and also needs to arrange substantial amounts of deep layer grout hole, outside after concrete repair simultaneously
Sight has impact.
The third method is slotted closure grouting method exactly, namely digs U-shaped, V-type, the dove-tail form groove of certain size at concrete surface, uses mortar to fill groove.
In the process digging groove, generally it is difficulty with digging effect preferably, a lot of situations
Under, generally with dig U-shaped, V-groove is in the majority.
Split channel process process generally adopt mending mortar to carry out the filling of groove, levelling.The common mending mortar being generally adopted only has higher comprcssive strength, tensile strength and fracture resistance preferably mostly, and does not possess the function of prevention construction joint cracking.Processing in technique in fluting method, after solidifying due to mending mortar, autogenous shrinkage can cause producing new application property crack between mortar face and both sides concrete joint surface, and when crack internal pressure increases, micro-crack also easily occurs in mortar middle part.The appearance in these cracks can cause occurring the problem such as spillage, running pulp when carrying out chemical grouting.It addition, ordinary mortar is carrying out vertical and end face construction operation occurs owing to initial stage adhesive property is relatively low and the problems such as concrete surface not easily bonding, adhesive effect is bad, sagging, disengagement often.It is therefore desirable to study that a kind of preventing secondary cracking, adhesive property be good, easily construction, sagging is not sagging, the construction technology that do not disengage.
Summary of the invention
The technical problem to be solved in the present invention is, preventing secondary cracking process of repairing in a kind of fluting method seepage treatment is provided, this technique prevention micro-crack, reduce that face checking, adhesive property be good, easily construction, sagging is not sagging, the trench fill process that do not disengage.Thus strengthening sealing effect, improving grouting quality, it is ensured that construction quality.
The technical scheme is that
Preventing secondary cracking process of repairing in fluting method seepage treatment, integrated by two techniques laying the dove-tail form groove set and filling dove-tail form groove preventing secondary cracking at seepage seam surface.Described lay the dove-tail form groove set at seepage seam surface, be lay A/F in crack or surface, expansion joint to be 4cm, bottom width be 10cm, the degree of depth is the dove-tail form groove of 3cm；Described filling dove-tail form groove preventing secondary cracking, is its surface of grinding process after use compensation shrinkage type High Performance Mortar filling dove-tail form groove, maintenance, arranges mozzle in the trench, moulds
Property filler, rubber bar, carry out water conservancy diversion and filling, prevention micro-crack, reduce that face checking, adhesive property be good, easily construction, sagging is not sagging, the trench fill process that do not disengage.
Above-mentioned compensation shrinkage type High Performance Mortar, polymer glue powder, silica flour, super fine extender, high-performance water reducing agent and aggregate and cement mixing is adopted to form, good with having micro-expansibility, groove filled by water conservation, good waterproof performance, easily bonding compensation shrinkage type mortar, and reach predetermined strength through maintenance, it is prevented that produce micro-crack and secondary cracking.
The present invention is by effectively closing the dove-tail form flute surfaces dug, it is possible to avoid spillage, running pulp, raising grouting quality.This process is applicable to the fluting forensic chemistry grouting construction at crack, expansion joint, can be commonly used in the hydraulic engineerings such as tunnel, inverted-siphon, culvert, it is possible to improves protection and repairs the effect of reinforcing, is the process of a kind of advanced person.
Accompanying drawing explanation
Fig. 1 is that present invention preventing secondary cracking in method seepage treatment of slotting repairs schematic diagram.
Detailed description of the invention
Preventing secondary cracking process of repairing in fluting method seepage treatment, by over one hundred time test, it is determined that lay A/F in crack or surface, expansion joint to be 4cm, bottom width be 10cm, the degree of depth is the method for dove-tail form groove of 3cm.Using the equipment such as wall saw, angle grinding machine, bevel protractor in construction, fluting form is realized well.By bevel protractor and wall saw with the use of, it may be determined that the angle of groove hypotenuse, saw guide rail by wall and realize working continuously, by using the instruments such as angle grinding machine, little electric pick to realize the harmless cutting of groove, it is ensured that groove hypotenuse is not destroyed.Concrete technology flow process: lay rubber 8 in expansion joint (this example is expansion joint) 2 up and down respectively
With mozzle 4, plastic filler 7 is filled at the expansion joint between bottom mozzle 4 to dove-tail form groove 5, and caulking material 3 is filled at 4 times expansion joints 2 of mozzle.Concrete 1 in side, expansion joint 2 bores grout hole 10, the dove-tail form groove 5 that A/F to be 4cm, bottom width be 10cm, the degree of depth are 3cm is poured into mortar 6, its mortar 6 adopts and compensates shrinkage type High Performance Mortar, formed by polymer glue powder, silica flour, super fine extender, high-performance water reducing agent and aggregate and cement mixing, good with having micro-expansibility, groove filled by water conservation, good waterproof performance, easily bonding compensation shrinkage type mortar 6, and reach predetermined strength through maintenance, it is prevented that produce micro-crack and secondary cracking.Fluting its surface-closed mortar of closure grouting method is used to provide bigger closing resistance, make chemical sizwe 11 can be advanced to the internal deeper wider array of region of lining concrete by grout hole 10, arrive the interface of concrete and rock, even can also meet penetrating passage and drive in the wrong direction, fill rock fracture.Fluting closure grouting method can make defect in concrete be completely filled with as far as possible, and concrete and rock junctional area defect, rock interior defect also can be filled full by the serosity of high pressure simultaneously, intercepted beyond lining concrete layer by percolating water.Remove outside mozzle and block mortar 9 maintenance with surface again.
This compensation shrinkage type High Performance Mortar for chemical grouting is in fluting forensic chemistry grouting, by effectively closing the dove-tail form flute surfaces dug, it is possible to avoid spillage, running pulp,
Improve grouting quality.Construct when temperature relatively low (8 DEG C), it is also possible to normally use.This process is applicable to the fluting forensic chemistry grouting construction at crack, expansion joint, can be commonly used in the hydraulic engineerings such as tunnel, inverted-siphon, culvert, it is possible to improves protection and repairs the effect of reinforcing, is the process of a kind of advanced person.
Claims (2)
1. preventing secondary cracking process of repairing in fluting method seepage treatment, integrated by two techniques laying the dove-tail form groove set and filling dove-tail form groove preventing secondary cracking at seepage seam surface, it is characterized in that the described dove-tail form groove laid at seepage seam surface and set, be lay A/F in crack or expansion joint (2) surface to be 4cm, bottom width be 10cm, the degree of depth is the dove-tail form groove (5) of 3cm；Described filling dove-tail form groove preventing secondary cracking, it is use to compensate shrinkage type High Performance Mortar (6) filling dove-tail form groove (5), its surface of grinding process after maintenance, mozzle (4), plastic filler (7), rubber bar (8) are set in the trench, carry out water conservancy diversion and filling, prevention micro-crack, reduce that face checking, adhesive property be good, easily construction, sagging is not sagging, the trench fill process that do not disengage.
2. preventing secondary cracking process of repairing in fluting method seepage treatment according to claim 1, it is characterized in that described compensation shrinkage type High Performance Mortar (6), polymer glue powder, silica flour, super fine extender, high-performance water reducing agent and aggregate and cement mixing is adopted to form, good with having micro-expansibility, groove filled by water conservation, good waterproof performance, easily bonding compensation shrinkage type mortar, and reach predetermined strength through maintenance, it is prevented that produce micro-crack and secondary cracking.
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| CN201610067855.5A CN105714739B (en) | 2016-02-01 | 2016-02-01 | Preventing secondary cracking process of repairing in fluting method seepage treatment |
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| CN201610067855.5A CN105714739B (en) | 2016-02-01 | 2016-02-01 | Preventing secondary cracking process of repairing in fluting method seepage treatment |
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| CN105714739A true CN105714739A (en) | 2016-06-29 |
| CN105714739B CN105714739B (en) | 2017-12-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759116A (en) * | 2017-01-04 | 2017-05-31 | 中国电建集团华东勘测设计研究院有限公司 | A kind of method for repairing and mending in the roomy crack of concrete |
| CN107604801A (en) * | 2017-10-13 | 2018-01-19 | 苏州东振路桥工程有限公司 | The reparation structure and its gap casting glue restorative procedure of a kind of impaired bituminous paving |
| CN113958148A (en) * | 2021-11-15 | 2022-01-21 | 广东科顺修缮建筑技术有限公司 | Groove for repairing cracks of back pressure water leakage and grooving process and application thereof |
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| JP2011111803A (en) * | 2009-11-26 | 2011-06-09 | Hayakawa Rubber Co Ltd | Joint water leakage preventing structure and construction method of the same |
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2016
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| JP2011111803A (en) * | 2009-11-26 | 2011-06-09 | Hayakawa Rubber Co Ltd | Joint water leakage preventing structure and construction method of the same |
| CN102121243A (en) * | 2011-01-17 | 2011-07-13 | 华北水利水电学院 | Processing method for rolling construction joint surface of concrete dam |
| CN203808015U (en) * | 2014-03-12 | 2014-09-03 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Rebar waterstop processing structure |
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Non-Patent Citations (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759116A (en) * | 2017-01-04 | 2017-05-31 | 中国电建集团华东勘测设计研究院有限公司 | A kind of method for repairing and mending in the roomy crack of concrete |
| CN107604801A (en) * | 2017-10-13 | 2018-01-19 | 苏州东振路桥工程有限公司 | The reparation structure and its gap casting glue restorative procedure of a kind of impaired bituminous paving |
| CN107604801B (en) * | 2017-10-13 | 2019-09-06 | 苏州东振路桥工程有限公司 | A kind of the reparation structure and its gap casting glue restorative procedure of impaired bituminous pavement |
| CN113958148A (en) * | 2021-11-15 | 2022-01-21 | 广东科顺修缮建筑技术有限公司 | Groove for repairing cracks of back pressure water leakage and grooving process and application thereof |
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| Publication number | Publication date |
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| CN105714739B (en) | 2017-12-12 |
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Effective date of registration: 20180723 Address after: No. 1, fourteen weft Road, peace zone, Shenyang, Liaoning, Liaoning Patentee after: Liaoning water conservancy and Hydropower Research Institute Co., Ltd. Address before: No. 1, fourteen weft Road, peace zone, Shenyang, Liaoning, Liaoning Patentee before: Liaoning Water-Conservancy Hydroelectricity Science Academy |