CN203229927U - Treatment structure for dam body upstream face superficial layer temperature crack - Google Patents
Treatment structure for dam body upstream face superficial layer temperature crack Download PDFInfo
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- CN203229927U CN203229927U CN 201320130682 CN201320130682U CN203229927U CN 203229927 U CN203229927 U CN 203229927U CN 201320130682 CN201320130682 CN 201320130682 CN 201320130682 U CN201320130682 U CN 201320130682U CN 203229927 U CN203229927 U CN 203229927U
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- upstream face
- thermal cracking
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Abstract
The utility model discloses a treatment structure for a dam body upstream face superficial layer temperature crack. A grouting layer fills up the crack in a poured mode, a water-stopping layer is embedded in a chisel groove on the surface of the crack, a rubber sheet is attached outside the surface of the chisel groove, and a seepage-proof covering piece covers the rubber sheet in a laid mode. A crack protecting structure comprises a concrete plate and cement-based waterproof layers, and the concrete plate wraps the outer surface and the periphery of the seepage-proof covering piece in a poured mode and is combined with a dam body through the cement-based waterproof layers. Comprehensive treatment is performed on the dam body upstream face superficial layer temperature crack in a blocking and preventing combination mode, respective excellent seepage-proof water-stopping performance of a chemical grouting material, a filling material, the rubber sheet and the seepage-proof covering piece are brought into full play, treatment effect of the crack is fully guaranteed, construction efficiency is high, blocking effect is good, overall consistency of the dam body can be restored, the seepage-proof requirements are met, and the surface crack can be prevented from further expanding to become the superficial layer crack.
Description
Technical field
The utility model belongs to the thermal cracking process field, is specifically related to a kind of dam body upstream upstream face shallow-layer thermal cracking and handles structure.
Background technology
Thermal cracking is one of modal crack in the concrete for hydraulic structure, seldom has hydraulic structure not have the crack according to statistics.The existence in crack, light then influence attractive in appearance and life-span of building, heavy then destroy the integrality of building, the safety configurations of harm building, cause infiltration, leak, reduce the buckling safety factor of building etc., therefore, must give enough attention to the concrete for hydraulic structure crack.Though the existence of most of shallow-layer thermal crackings can't constitute a threat to the safe and stable operation of dam, but do not get rid of different because of the position at place, crack and external environment yet, the less shallow-layer thermal cracking of some original harm can extend expansion and develop into shallow-layer or even more serious deep layer even penetrability crack, in case the crack seepage takes place, it is very difficult that the processing in later stage will become, and still is that economic angle is considered not calculate from safety.
Shallow-layer thermal cracking for the dam body upstream face, how because temperature year changes and the winter temperature rapid drawdown is not carried out the insulation measure in advance and caused, shallow-layer thermal cracking staff for the dam body upstream face can not adopt a casual attitude, accomplish by checking timely discovery crack, according to the position in crack, scale etc., accurately analysis and research determine to adopt correct effective treatment again, the simple method of employing that can not be blindly, cause take a lot of work, time-consuming and waste fund.
Therefore, a kind of construction system that can effectively handle dam body upstream upstream face shallow-layer thermal cracking of research is particularly important.
The utility model content
The utility model purpose: the purpose of this utility model is in order to overcome the deficiencies in the prior art, provide a kind of by processing and protection to the shallow-layer thermal cracking, can improve dam structure integrality and impervious dam body upstream upstream face shallow-layer thermal cracking processing structure.
Technical scheme: a kind of dam body described in the utility model upstream upstream face shallow-layer thermal cracking is handled structure, comprise crack plugging structure and crack safeguard structure, described crack plugging structure comprises grout blanket, sealing layer, sheet rubber and antiseepage cover plate, described grout blanket pouring and filling is in the crack, described sealing layer is embedded in the raggle of fracture faces, the outer sheet rubber that pastes in the surface of described raggle, described antiseepage cover plate is laid and is covered on the described sheet rubber; Described crack safeguard structure comprises concrete slab and cement-based waterproof layer, and described concrete slab pouring ladle is rolled in the external surface of described antiseepage cover plate and on every side, and is combined with dam body by described cement-based waterproof layer.
Preferably, described grout blanket is the epoxy resin grouting layer, the epoxy resin series material has high elastic modulus, can effectively absorb the unfavorable stress of both sides, crack, the while possess hydrophilic property, embody the work capacity that is applicable to the dam body wet environment, be adapted to as this type of the perfusion of micro-cracks of shallow-layer thermal cracking.
Preferably, the macromolecule plastic sealing layer made from macromolecular materials such as butyl rubber and organosilicons at fracture faces raggle pointing, the elongation rate of macromolecule plastic sealing layer is 800% ~ 850%, can well adapt to because the distortion when closing is opened in the crack that variations in temperature causes, guarantee and the concrete adhibit quality in both sides, crack.
In order to repair unstabilized shallow-layer thermal cracking still, described sheet rubber is neoprene rubber sheet, and neoprene rubber sheet has good springiness and the superior characteristics of anti-permeability performance, is attached to the stability that helps to improve the crack in the raggle, prevents that the crack from further enlarging.
In order to cover on the sheet rubber antiseepage cover plate and firm being attached on the dam body by the SR plastic sealing material, described antiseepage cover plate is SR antiseepage cover plate, have that working procedure is simple, cost is low and paste firm advantage, dam body is had good cementation, can replace the function of traditional dam body upstream upstream face concrete cut.
In order to repair by water logging not than the crack of depths, the external surface of described cement-based waterproof layer also adds spray one deck polypropylene fiber concrete layer.
Beneficial effect: 1, the utility model adopts the method for shutoff and prevention combination that dam body upstream face shallow-layer thermal cracking is carried out the comprehensive regulation, give full play to chemical grouting material, pointing material, sheet rubber and antiseepage cover plate good water seepage prevention performance separately, fully guarantee the treatment effect in crack, the utility model technology is simple, workable, efficiency of construction is fast, plugging effect is good, can recover the integral dam uniformity, reach the antiseepage requirement, also can prevent external crack further to enlarge and develop into the shallow-layer crack; 2, adopt the epoxy series material to carry out chemical grouting and fill up the crack, concrete castability is good, and proportion is a bit larger tham water, so can pour into the water crack that has of dam body upstream upstream face and stitch with slurry top water in the grouting; 3, SR antiseepage cover plate and SR shape sealing material unite use, more can adapt to the follow-up distortion in crack, avoid using merely the antiseepage cover plate to be subjected to stress rupture, the tensile strength height, the antiseepage quality further is protected; 4, concrete slab and dam body binding site spraying KT1 cement based impervious material makes the fine and close waterproof of concrete slab, can reach the function in self-regeneration crack when the crack appears in the later stage concrete and have water to infiltrate.
Description of drawings
Fig. 1 is dam body upstream upstream face shallow-layer thermal cracking front schematic view;
Fig. 2 is dam body upstream upstream face shallow-layer thermal cracking side schematic view;
Fig. 3 is structural representation of the present utility model.
The specific embodiment
Below technical solutions of the utility model are elaborated, but protection domain of the present utility model is not limited to described embodiment.
Embodiment:Dam body upstream upstream face shallow-layer thermal cracking such as Fig. 1, shown in 2, crack 1 is positioned on the dam body upstream face, a kind of dam body of the utility model upstream upstream face shallow-layer thermal cracking is handled structure, as shown in Figure 3, comprise crack plugging structure and crack safeguard structure, the crack plugging structure comprises grout blanket, sealing layer 2, sheet rubber 3 and antiseepage cover plate 4, at first chemical grouting is carried out in crack 1, grout blanket adopts the epoxy resin grouting layer, remove the foreign material on 1 surface, crack, soft inlet pipe is laid in 1 both sides along the crack, uses full seam with the method for stepping slurry, make slurries fill with full seam within a short period of time, the epoxy resin grouting layer is filled up in crack 1; 1 surperficial raggle 5cm * 8cm in the crack, embedded waterproofing course, it is the SR2 shape sealing layer 2 of main material that waterproofing course adopts with macromolecular materials such as butyl rubber and organosilicons, guarantees and crack 1 both sides concrete strong bonding; The outer sheet rubber 3 that pastes in the surface of raggle, sheet rubber 3 adopts the wide neoprene rubber sheet 3 of 60cm, and it has good springiness and impervious good characteristics; The scope of wide 8m subsides antiseepage cover plate 4 is laid and is covered on the sheet rubber 3 in the middle of monolith, and antiseepage cover plate 4 adopts SR antiseepage cover plates 4, uses in conjunction with the SR plastic sealing material, and dam body crack 1 is had good cementation;
The crack safeguard structure comprises concrete slab 5 and cement-based waterproof layer 6, comprise the protection to both sides, crack and upper and lower side, wrap up the thick concrete slab 5 of 25cm ~ 40cm at the external surface of antiseepage cover plate 4 and cast on every side thereof, at counter-slope position anchor PVC plate, the dark narrow V-shaped groove fill concrete in basement rock position; Scope at antiseepage cover plate 4 each 6.5m of both sides, by cement-based waterproof layer 6 concrete slab 5 is combined with dam body, spraying cement-based waterproof layer 6 adopts the KT1 cement group water-proofing material, can make the fine and close waterproof of concrete, reach the function in self-regeneration crack 1 when the later stage, crack 1 appearred in concrete or when having water to infiltrate; Each 2m scope of the following concrete slab of elevation 45.00m 5 both sides also needs to add the polypropylene fiber concrete layer that sprays thick 8 ~ 10cm on cement-based waterproof layer 6 surface, for the crack 1 of repairing the depth of the water submerging larger part.
As mentioned above, although represented and explained the utility model that with reference to specific preferred embodiment it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the present utility model that does not break away from the claims definition, can make various variations in the form and details to it.
Claims (5)
1. a dam body upstream upstream face shallow-layer thermal cracking is handled structure, comprise crack plugging structure and crack safeguard structure, it is characterized in that: described crack plugging structure comprises grout blanket, sealing layer (2), sheet rubber (3) and antiseepage cover plate (4), described grout blanket pouring and filling is in crack (1), described sealing layer (2) is embedded in the raggle on surface, crack (1), the outer sheet rubber (3) that pastes in the surface of described raggle, described antiseepage cover plate (4) is laid and is covered on the described sheet rubber (3); Described crack safeguard structure comprises concrete slab (5) and cement-based waterproof layer (6), and described concrete slab (5) pouring ladle is rolled in the external surface of described antiseepage cover plate (4) and on every side, and is combined with dam body by described cement-based waterproof layer (6).
2. dam body according to claim 1 upstream upstream face shallow-layer thermal cracking is handled structure, and it is characterized in that: described grout blanket is the epoxy resin grouting layer.
3. dam body according to claim 1 upstream upstream face shallow-layer thermal cracking is handled structure, it is characterized in that: described sheet rubber (3) is neoprene rubber sheet (3).
4. dam body according to claim 1 upstream upstream face shallow-layer thermal cracking is handled structure, and it is characterized in that: described antiseepage cover plate (4) is SR antiseepage cover plate (4).
5. dam body according to claim 1 upstream upstream face shallow-layer thermal cracking is handled structure, it is characterized in that: the external surface of described cement-based waterproof layer (6) also adds spray one deck polypropylene fiber concrete layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320130682 CN203229927U (en) | 2013-03-21 | 2013-03-21 | Treatment structure for dam body upstream face superficial layer temperature crack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320130682 CN203229927U (en) | 2013-03-21 | 2013-03-21 | Treatment structure for dam body upstream face superficial layer temperature crack |
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| Publication Number | Publication Date |
|---|---|
| CN203229927U true CN203229927U (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320130682 Expired - Fee Related CN203229927U (en) | 2013-03-21 | 2013-03-21 | Treatment structure for dam body upstream face superficial layer temperature crack |
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| CN (1) | CN203229927U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106854868A (en) * | 2015-12-09 | 2017-06-16 | 江苏建筑职业技术学院 | Glass wool cloth mounting method mending concrete sluice plate crack |
| CN107022985A (en) * | 2016-02-27 | 2017-08-08 | 江苏建筑职业技术学院 | The embedding reinforcing method mending concrete sluice plate crack of asphalt mortar, bituminous mortar |
| CN109339067A (en) * | 2018-11-20 | 2019-02-15 | 杭州江润科技有限公司 | Concrete dam mask increases structure and construction method |
-
2013
- 2013-03-21 CN CN 201320130682 patent/CN203229927U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106854868A (en) * | 2015-12-09 | 2017-06-16 | 江苏建筑职业技术学院 | Glass wool cloth mounting method mending concrete sluice plate crack |
| CN107022985A (en) * | 2016-02-27 | 2017-08-08 | 江苏建筑职业技术学院 | The embedding reinforcing method mending concrete sluice plate crack of asphalt mortar, bituminous mortar |
| CN109339067A (en) * | 2018-11-20 | 2019-02-15 | 杭州江润科技有限公司 | Concrete dam mask increases structure and construction method |
| CN109339067B (en) * | 2018-11-20 | 2021-01-15 | 杭州江润科技有限公司 | Concrete dam facing heightening structure and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20170321 |
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| CF01 | Termination of patent right due to non-payment of annual fee |