CN104060576B - Concrete for hydraulic structure member expansion joint waterstop repairs attachment structure and method for repairing and connecting - Google Patents
Concrete for hydraulic structure member expansion joint waterstop repairs attachment structure and method for repairing and connecting Download PDFInfo
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- CN104060576B CN104060576B CN201410281372.6A CN201410281372A CN104060576B CN 104060576 B CN104060576 B CN 104060576B CN 201410281372 A CN201410281372 A CN 201410281372A CN 104060576 B CN104060576 B CN 104060576B
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- Prior art keywords
- waterstop
- overcoat
- termination
- concrete
- expansion joint
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Abstract
The present invention proposes a kind of concrete for hydraulic structure member expansion joint waterstop attachment structure and method of attachment, it includes that an overcoat and seals packed layer, this sealing packed layer is filled in the expansion joint of waterstop breakage, this overcoat is coated on outside the termination of this sealing packed layer and this waterstop breakage, and combines with this termination.Described sealing packed layer preferably closes the sealing of this breakage, can be the supporting role needed for overcoat provides.This overcoat can directly molding by the way of field-applied flexible film material, mutually combine closely so as to directly termination with this waterstop.Preferably brushing activator and binding agent between described overcoat and waterstop.The present invention can solve the connectivity problem of concrete for hydraulic structure member expansion joint waterstop breakage, for waterstop is cut the technique of replacing by usual manner, simple, and after connection, waterstop performance is intact.
Description
Technical field
The present invention relates to a kind of concrete for hydraulic structure member expansion joint waterstop repair or attachment structure, and corresponding connection side
Method.
Background technology
Would generally set on the concrete component of the hydraulic structures such as power station, canal for water conveyance, water-conveyance tunnel and water delivery aqueduct
There is expansion joint.Expansion joint refers to as adapting to the gap that the impact of structure is arranged by material swell-shrinking deformation in the structure.Domestic
The conventional measure of outer solution expansion joint antiseepage, is that the both wings of rubber fastening band or plastics waterstop are cast in expansion joint two respectively
In the concrete of side, or utilize band steel and bolt rubber fastening band or plastics waterstop to be twisted across seam to be pressed in sealing both sides.Such as Fig. 1
Shown in, it is that the both wings of waterstop 2 are cast in the concrete 4 of both sides, expansion joint 5 respectively, it has necessarily from concrete outer surface
Distance.The connected mode of ordinary rubber waterstop or plastics waterstop is typically to utilize specialty adapter, such as sweating welder
Carry out sulfuration to connect or thermally coupled；After hydraulic structure runs for many years, these waterstops there may be fracture and breakage, needs
These fractures and breakage are repaired.When connecting the waterstop of local fracture and breakage, because working place is limited, very
Difficult with specialty adapter enforcement.
To these fractures and the process requirement of damaged waterstop, on the one hand want sealing good seepage-proof property, corresponding journey can be born
The water pressure of degree；On the other hand, it is in dynamic variable condition due to expansion joint seam width, it is necessary to make the structure energy after repairing
Enough adapt to its deformation.Therefore, of concrete for hydraulic structure member expansion joint waterstop reparation connection process always water conservancy project field
Technological difficulties；When there is tens meters of the most up to a hundred meters of head pressure effects, this difficult point becomes especially prominent.
The conventional measure solving this problem both at home and abroad is to remove whole piece waterstop to change, and wastes time and energy, material resources and people
Power high cost.
To sum up, in place of solving the deficiencies in the prior art, the present invention only proposes a kind of concrete for hydraulic structure member expansion joint
Water band attachment structure and method of attachment.
Summary of the invention
For solving above-mentioned technical problem, the concrete for hydraulic structure member expansion joint waterstop attachment structure of the present invention, it includes
One overcoat and one seals packed layer, and this sealing packed layer is filled in the expansion joint of waterstop breakage, preferably closes
Sealing at this, this overcoat is coated on outside the termination of this sealing packed layer and this waterstop breakage, and ties mutually with this termination
Close.
Preferably, this sealing packed layer is flexible caulking material.
Flexible caulking material is caulking material conventional in a class civil engineering, and its characteristic is to keep certain weak degree,
Do not affect concrete component normally flexible reaction.
Preferably, this overcoat is by the molding of flexible film material institute.
The characteristic of selected flexible film material is, it has pliability and higher hot strength, and preferable water proofing property is with anti-
Corrosivity.
Preferably, this overcoat farther includes the reinforcing fiber being located in this flexible film material.
Preferably, this overcoat is by coating flexible film material in this sealing packed layer and this waterstop termination in scene
Outside and molding.
Preferably, this flexible film material is polyureas series material.
Preferably, the width of this overcoat is more than the width of this waterstop, and this overcoat has with the termination of this waterstop
Lap.
Preferably, the overlap length of described overcoat cladding waterstop termination is not less than 15 centimetres, and both sides exceed this sealing
Bandwidth is no less than 5 centimetres, and the thickness of described overcoat is no less than 4 millimeters.
Preferably, tie mutually in the way of brushing activator and/or binding agent between described overcoat and the termination of waterstop
Close.
The present invention also provides for a kind of concrete for hydraulic structure member expansion joint waterstop method of attachment, and it comprises the steps:
(1), in the expansion joint of this waterstop breakage, fill a sealing packed layer, preferably close sealing at this；
(2), the termination outer side covers in this sealing packed layer and this waterstop breakage is formed one by flexible film material and prevents
Sheath.
Method as above, the width of this overcoat is more than the width of this waterstop, this overcoat and this waterstop
Termination has lap.
Method as above, also includes pre-treatment step: from concrete for hydraulic structure component surface raggle between step (1)
To expose the termination, waterstop both sides of this waterstop breakage.
Method as above, after step (2), again backfills this groove by cement mortar and makes concrete for hydraulic structure piece table
Face is smooth.
Method as above, this overcoat is in this sealing packed layer and the termination of this waterstop breakage by scene
The mode of outer application flexible film material and molding.
Method as above, this overcoat is made up of flexible film material and fiber reinforced material.Concrete mode is permissible
It is, during coating this flexible film material, reinforcing fiber or fiber cloth to be added in this coating material, or directly will mend
Strong fiber or fiber cloth are laid in not solidified coating, or in advance reinforcing fiber or fiber cloth are laid on this waterstop and break
Outside two ends at damage and behind this sealing packed layer surface, soft then at this liquid of above brushing of this reinforcing fiber or fiber cloth
Tough membrane material, resolidification molding.
Method as above, this overcoat covers the overlap length of waterstop termination and is not less than 15 centimetres, and both sides exceed
This waterstop width is no less than 5 centimetres, and the thickness of described overcoat is no less than 4 millimeters.
Method as above, also includes a termination toward this waterstop breakage between step (1) and step (2)
The process step of external coating activator and/or binding agent.
The concrete advantage of the present invention is as follows:
1. the present invention is between the concrete member expansion joint of waterstop breakage, first uses the close of flexible caulking material formation
Face, expansion joint is closed by envelope packed layer；In order to support the overcoat of outer layer, for overcoat with field-applied flexible film material
Molding mode provide supporting surface.The existence of the most flexible caulking material, makes protecting film be perpendicular to the direction of sealing (across seam
The direction of mouth), there is bigger extensibility.This measure can improve the ability resistant to pressure of integrated seepage-proofing structure, increases again waterstop
The ability adapting to sealing change of attachment structure, and do not interfere with the normal flexible of concrete component at all.
2. the overcoat of the present invention, can be by on-the-spot in waterstop termination and sealing packed layer outer application filmogen
Molding, is directly connected with the termination of waterstop while making overcoat molding.
Waterstop surface is typically provided with the projection arranged for strengthening anti-seepage effect and adapt to expansion joint deformation, utilizes scene
The mode being applied as membrane material can directly be coated with these sealings projections, thus is suitable for the complicated protruding of various waterstop surface,
There is excellent sealing effectiveness；On the other hand, the concrete surface below waterstop is typically due to damaged waterstop partial dismantling
Reason cause concrete damaged and rough and uneven in surface, utilize on-the-spot filmogen to be applied directly to scraggly concrete table
Face, its construction technology is simple, and sealing effectiveness is preferable.
3. overcoat is by adding pliable and tough fiber and/or fiber cloth as strengthening course, strengthens the intensity of overcoat, can
Reduce stress to concentrate, improve ability resistant to pressure and the external force resistance damage capability of integrated seepage-proofing structure further.
4. the length of overcoat cladding waterstop termination is not less than 15 centimetres, and both sides are no less than 5 lis beyond waterstop width
Rice, overcoat thickness is no less than 4 millimeters, can increase degree of being connected firmly and the anti-seepage effect of waterstop attachment structure.
5. the cross cut end (of a beam) brushing activator of waterstop and/or binding agent, to improve between protective coating and waterstop
Adhesive strength.
Accompanying drawing explanation
Fig. 1 is the installation site schematic diagram of concrete for hydraulic structure member expansion joint waterstop.
Fig. 2 is concrete for hydraulic structure member expansion joint waterstop attachment structure floor map.
Fig. 3 is concrete for hydraulic structure member expansion joint waterstop attachment structure A-A profile.
Fig. 4 is concrete for hydraulic structure member expansion joint waterstop attachment structure B-B profile.
Symbology illustrates:
1-seals packed layer 2 waterstop 21 waterstop termination
3-overcoat 4-concrete component 5 expansion joint
6-rectangular channel m overcoat both sides are beyond the width n overcoat of the waterstop length overlapping with waterstop termination.
Detailed description of the invention
As shown in figs 2-4, when, in concrete for hydraulic structure component 4, being embedded in the waterstop 2 in the concrete of both sides, expansion joint 5
When there is local damage, first by the concrete chisel removal of breakage to outer surface, form rectangular channel 6, make outside the termination 21 of waterstop 2
Dew (or by wiping out breakage, form the termination 21 that both sides are the most neat, be known approaches herein, therefore do not describe in detail), notes simultaneously
Meaning protects remaining unspoiled waterstop 2, in order to avoid being damaged by concrete waste quarrel.Stretching between the termination 21 of two waterstops 2
Filling the sealing packed layer 1 (see Fig. 2 and Fig. 3) being made up of flexible caulking material in seam 5, the height wherein sealing packed layer 1 can
Slightly protrude from the groove face of both sides, expansion joint 5, preferably close sealing at this of this expansion joint 5.The flexible film material of reusable liquid
In field-applied in the termination 21 of this waterstop, seal packed layer 1 outside with molding one overcoat 3, to cover this both sides
Termination 21, seal packed layer 1 and the groove bottom (seeing Fig. 3-4) of breakage sealing both sides, in the process of coating, can be to coating
Material adds flexible fiber reinforcing material, such as flexible fiber or fiber cloth etc., to increase the intensity of overcoat 3 molding structure and to resist
Stress ability；Wherein, coating flexible film material scope include this waterstop 2 termination, both sides 21, seal packed layer 1 and
On the concrete groove face of both sides, expansion joint (as shown in Figure 2).Before coating, also can be coated with in termination 21 upper surface of waterstop 2
Brush activator and/or binding agent, reach to make the termination 21 of overcoat 3 and waterstop 2 overlap and be filled with this activation between position
Agent or binding agent, so as to improving the adhesive strength between overcoat 3 and termination, waterstop 2 both sides 21 and sealing property.As
Shown in Fig. 2, overcoat 3 covers length n of (coating) waterstop termination 21 not less than 15 centimetres (also referring to overlap length), overcoat
3 cover the width m beyond waterstop 2 is no less than 5 centimetres, and the thickness of overcoat 3 self is no less than 4 millimeters.Treat that above operation is complete
Cheng Hou, again with in cement mortar backfill rectangular channel 6.The present invention passes through field-applied flexible film material molding overcoat 3, can be straight
Connect and make the overcoat 3 of molding combine closely with the termination, both sides 21 of waterstop 2, and described sealing packed layer 1 can be on-the-spot painting
The overcoat 3 covering molding provides the supporting surface of necessity, and increases the ability resistant to pressure of this attachment structure；Additionally, due to this sealing
The existence of packed layer 1, makes overcoat 3 in the direction (across the direction of sealing) being perpendicular to flexible sealing, has bigger extensibility.
Wherein, described flexible film material may be selected to be polyureas series material.
Wherein, the process of field-applied this overcoat 3 of flexible film material molding, concrete mode is it may be that be somebody's turn to do in coating
During flexible film material, reinforcing fiber or fiber cloth are added in this coating material, or directly by reinforcing fiber or fibre
Wei Bu is laid in not solidified coating, or reinforcing fiber or fiber cloth are laid on the two ends 21 of this waterstop breakage in advance
Behind outside and this sealing packed layer 1 surface, then at this liquid flexible film material of above brushing of this reinforcing fiber or fiber cloth, then
Curing molding.
Above-described embodiment is only the preferred forms of the present invention, and wherein the molding mode of this overcoat 3 is not limited to scene
The mode of coating, also can be in advance prior to outside the venue with pliable and tough filmogen and flexible fiber (previously described reinforcing fiber or fiber cloth)
After the overcoat 3 of molding one preliminary dimension, then covering is adhered to, outside the termination 21 of this sealing packed layer 1 and waterstop 2, pass through
Bonding agent or special activating agent, make together with the termination 21 with this waterstop 2 closely bonds.
Above-described embodiment is only for clearly demonstrating the invention example, and not has the invention
The restriction of body embodiment.For those of ordinary skill in the field, can also make on the basis of the above description
The change of other multi-form or variation.In every case extended out within the spirit and principles in the present invention any obviously
Change or change among still in the invention scope of the claims.
Claims (4)
1. a concrete for hydraulic structure member expansion joint waterstop method for repairing and connecting, it comprises the steps:
(1) from concrete for hydraulic structure component surface raggle to expose the termination, waterstop both sides of this waterstop breakage；
(2) in the expansion joint of this waterstop breakage, fill a sealing packed layer, close sealing at this；
(3) to cross cut end (of a beam) brushing activator and the binding agent of this waterstop breakage；
(4) in one layer of protection being made up of flexible film material of termination outer side covers of this sealing packed layer and this waterstop breakage
Layer, the width of this overcoat is more than the width of this waterstop, and the termination of this overcoat and this waterstop has and partly overlaps；
(5) again backfilling this groove by cement mortar makes concrete for hydraulic structure component surface smooth.
A kind of concrete for hydraulic structure member expansion joint waterstop method for repairing and connecting the most according to claim 1, its feature exists
In, this overcoat is by field-applied liquid flexible film material outside the termination of this sealing packed layer and this waterstop breakage
Material, the mode of resolidification molding and formed.
A kind of concrete for hydraulic structure member expansion joint waterstop method for repairing and connecting the most according to claim 1, its feature exists
In, this overcoat is made up of flexible film material and fiber reinforced material.
4. an attachment structure repaired by concrete for hydraulic structure member expansion joint waterstop, and its feature includes: an overcoat and seals
Packed layer, this sealing packed layer is filled in the expansion joint of waterstop breakage, this overcoat be coated on this sealing packed layer and
Outside the termination of this waterstop breakage, and combining with this termination, this sealing packed layer is flexible caulking material, this overcoat
Being to be made up of flexible film material and the reinforcing fiber of being located in this flexible film material, described flexible film material is polyureas material
Material, the overlap length of described overcoat cladding waterstop termination is not less than 15 centimetres, and both sides are no less than 5 beyond this waterstop width
Centimetre, the thickness of described overcoat is no less than 4 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410281372.6A CN104060576B (en) | 2014-06-20 | 2014-06-20 | Concrete for hydraulic structure member expansion joint waterstop repairs attachment structure and method for repairing and connecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410281372.6A CN104060576B (en) | 2014-06-20 | 2014-06-20 | Concrete for hydraulic structure member expansion joint waterstop repairs attachment structure and method for repairing and connecting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104060576A CN104060576A (en) | 2014-09-24 |
| CN104060576B true CN104060576B (en) | 2016-08-24 |
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| CN201410281372.6A Expired - Fee Related CN104060576B (en) | 2014-06-20 | 2014-06-20 | Concrete for hydraulic structure member expansion joint waterstop repairs attachment structure and method for repairing and connecting |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235504A (en) * | 2018-09-04 | 2019-01-18 | 中国十九冶集团有限公司 | A kind of waterproof structure for deformation seams and deformation joint method for repairing and mending |
| CN110195407B (en) * | 2019-07-02 | 2020-12-11 | 中铁二十二局集团市政工程有限公司 | Waste water stop belt dismounting device for bridge expansion joint |
| CN113431214B (en) * | 2021-07-06 | 2023-01-17 | 昌达建筑科技有限公司 | Expansion joint structure of building |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053245C (en) * | 1994-12-28 | 2000-06-07 | 上海华海特殊环境医学工程公司 | Inner repair technology method for reinforced concrete culvert and channel water-blocking belt |
| CN101570973B (en) * | 2009-05-31 | 2010-12-29 | 武汉一冶建筑安装工程有限责任公司 | Internal-bonded water-proof technique for externally-bonded waterstop |
| CN101701456A (en) * | 2009-11-13 | 2010-05-05 | 中国水利水电科学研究院 | Water conservancy project concrete member expansion joint or crack sealing-up and seepage-proofing method |
| JP5639787B2 (en) * | 2010-05-28 | 2014-12-10 | 株式会社大林組 | Waterproofing agent for impermeable sheet and repair method for impermeable sheet |
| CN202466527U (en) * | 2012-03-20 | 2012-10-03 | 中国水利水电科学研究院 | Novel water stop structure for seam or crack of hydraulic concrete building |
| CN203960811U (en) * | 2014-06-20 | 2014-11-26 | 北京中水科海利工程技术有限公司 | Concrete for hydraulic structure member expansion joint waterstop syndeton |
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