CN110344371A - For the spray polyurea coating anti-seepage processing method of reverse water pressure - Google Patents
For the spray polyurea coating anti-seepage processing method of reverse water pressure Download PDFInfo
- Publication number
- CN110344371A CN110344371A CN201910669605.2A CN201910669605A CN110344371A CN 110344371 A CN110344371 A CN 110344371A CN 201910669605 A CN201910669605 A CN 201910669605A CN 110344371 A CN110344371 A CN 110344371A
- Authority
- CN
- China
- Prior art keywords
- polyurea coating
- basin
- basal plane
- drainpipe
- cement mortar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
The invention discloses a kind of spray polyurea coating anti-seepage processing method for reverse water pressure, one, find out library basin and be lauched leakage passage, it drills being located at main breakthrough position, drainpipe is then buried in hole；It is floral tube structure that drainpipe, which is located at Shang Ku basin base tube body below, and single slope drainage valve is arranged in the upper orifice of drainpipe and extends to library basin basal plane or more, geotextiles are wrapped up outside the tube body of floral tube structure as loaded filter；Two, it is located in hole in upper library basin basal plane or less 10cm depth bounds and is filled with high-strength cement mortar；Then high-strength cement mortar is smeared to upper library basin basal plane surface layer；Three, interfacial agents are smeared after drying up on the high-strength cement mortar surface of smearing with hair dryer, after interfacial agents solidification, spray 3mm thickness two-component polyurea coating.The invention has the advantages that having prevented the generation that reverse water pressure generates drum phenomenon to the polyurea coating sprayed.
Description
Technical field
The present invention relates to basin anti-seepage processing methods in library in hydroenergy storage station, more particularly, to the spraying for being directed to reverse water pressure
Polyurea coating anti-seepage processing method.
Background technique
In pumping energy storage power station project, the height of water of the general upper library library Pen Hexia basin is between 400m ~ 600m, upper library
The water of basin is to be pumped with water turbine set from lower library basin, needs to consume a large amount of electric energy, if upper reservoir leakage amount is larger, no
But it will cause biggish economic loss, and the structure safety and surrounding enviroment of upper library basin adversely affected, therefore, to upper
The antiseepage of library basin is more demanding.
Polyureas is to react a kind of elastomer substances generated with amino-compound component by isocyanate component, is had preferable
Waterproof, anti-corrosion, wear-resisting property.The Anti-seeping technology for taking library basin in storage station full library basin spray polyurea coating, substantially may be used
It is watertight to accomplish.But since the requirement that spray polyurea coating is constructed to library basin basal plane is very high, especially require library basin base
Face must be dried, be otherwise easy to appear bonding loosely, hollowing phenomena such as.There is the portion of reverse water pressure especially for library basin basal plane
Position not only needs to keep basal plane dry bright water carrying-off, also to guarantee that reverse water pressure does not generate the polyurea coating sprayed
The adverse effect such as drum.
Summary of the invention
It is an object of that present invention to provide a kind of spray polyurea coating anti-seepage processing methods for reverse water pressure, to solve to take out
The reverse water pressure problem encountered when the full library basin spray polyurea coating Anti-seeping technology in library in water storage station.
To achieve the above object, the present invention takes following technical proposals:
Spray polyurea coating anti-seepage processing method of the present invention for reverse water pressure carries out as steps described below:
The first step finds out library basin and is lauched leakage passage, bores in the upper library basin basal plane position for being located at main breakthrough position
Then hole, hole depth 0.5m-1.5m bury drainpipe in the hole；The drainpipe is located at Shang Ku basin base tube body below
For floral tube structure, the interior setting single slope drainage valve of the upper orifice of drainpipe simultaneously extends to library basin basal plane or more, in the floral tube knot
Geotextiles are wrapped up outside the tube body of structure as loaded filter；
Second step is located in upper library basin basal plane or less 10cm-15cm depth bounds in hole and is filled with high-strength cement mortar；Then
High-strength cement mortar is smeared to upper library basin basal plane surface layer, it is twice of screed-coat, every all over minimum thickness 1.5cm, screed-coat minimum thickness
3cm；
Third step cleans out the high-strength cement mortar surface polishing of smearing, smears interfacial agents after being dried up with hair dryer,
After interfacial agents solidification, 3mm thickness two-component polyurea coating is sprayed.
The technical indicator of the two-component polyurea coating are as follows: surface drying time≤6h, bond strength >=2.5MPa, tensile strength
>=20MPa, elongation at break >=350%, bond strength >=2.5MPa, impermeability >=0.4MPa × 2h.Advantage of the present invention exists
Targetedly treatment measures are taken in the breakthrough for having reverse water pressure to upper library basin, have well solved polyureas construction to basal plane
It is required that the execution conditions problem that must be dried, meanwhile, it is existing to the polyurea coating generation drum sprayed to have prevented reverse water pressure
The generation of elephant.
Detailed description of the invention
Fig. 1 is the leakage preventing structure schematic diagram that upper library basin of the present invention is lauched main breakthrough position.
Specific embodiment
As shown in Figure 1, the spray polyurea coating anti-seepage processing method of the present invention for reverse water pressure, according to following steps
It is rapid to carry out:
The first step finds out library basin and is lauched leakage passage, in the basal plane position for the Shang Ku basin base 1 for being located at main breakthrough position
Then drilling, hole depth 1.0m bury drainpipe 2 in hole；It is 3 knot of floral tube that drainpipe 2, which is located at Shang Ku basin base tube body below,
Structure, the interior setting single slope drainage valve 4 of 2 upper orifice of drainpipe simultaneously extend to library basin basal plane or more, reach infiltration drawing purpose,
The tube body outer peripheral surface package geotextiles of 3 structure of floral tube are as loaded filter；
Second step is located in upper library basin basal plane or less 10cm depth bounds in hole and is filled with high-strength cement mortar 5；Then to upper
High-strength cement mortar layer 6 is smeared on library basin basal plane surface layer, twice of screed-coat, every all over minimum thickness 1.5cm, screed-coat minimum thickness
3cm；
Third step cleans out 6 surface of the high-strength cement mortar layer polishing of smearing, smears interface agent layer after being dried up with hair dryer
7,7 adhesion strengths of interface agent layer >=2.5MPa spray 3mm thickness two-component polyurea coating 8 after the solidification of interface agent layer 7.
The technical indicator of two-component polyurea coating 8 are as follows: surface drying time≤6h, bond strength >=2.5MPa, tensile strength >=
20MPa, elongation at break >=350%, bond strength >=2.5MPa, impermeability >=0.4MPa × 2h.
Claims (2)
1. a kind of spray polyurea coating anti-seepage processing method for reverse water pressure, it is characterised in that: carry out as steps described below:
The first step finds out library basin and is lauched leakage passage, bores in the upper library basin basal plane position for being located at main breakthrough position
Then hole, hole depth 0.5m-1.5m bury drainpipe in the hole；It is below that the drainpipe is located at Shang Ku basin base
Tube body is floral tube structure, and single slope drainage valve is arranged in the upper orifice of drainpipe and extends to library basin basal plane or more, in the flower
Geotextiles are wrapped up outside the tube body of pipe structure as loaded filter；
Second step is located in upper library basin basal plane or less 10cm-15cm depth bounds in hole and is filled with high-strength cement mortar；Then
High-strength cement mortar is smeared to upper library basin basal plane surface layer, it is twice of screed-coat, every all over minimum thickness 1.5cm, screed-coat minimum thickness
3cm；
Third step cleans out the high-strength cement mortar surface polishing of smearing, smears interfacial agents after being dried up with hair dryer,
After interfacial agents solidification, 3mm thickness two-component polyurea coating is sprayed.
2. the anti-seepage processing method of full library basin spray polyurea coating according to claim 1, it is characterised in that: the two-component
The technical indicator of polyurea coating are as follows: surface drying time≤6h, bond strength >=2.5MPa, tensile strength >=20MPa, elongation at break
>=350%, bond strength >=2.5MPa, impermeability >=0.4MPa × 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910669605.2A CN110344371A (en) | 2019-07-24 | 2019-07-24 | For the spray polyurea coating anti-seepage processing method of reverse water pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910669605.2A CN110344371A (en) | 2019-07-24 | 2019-07-24 | For the spray polyurea coating anti-seepage processing method of reverse water pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110344371A true CN110344371A (en) | 2019-10-18 |
Family
ID=68179992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910669605.2A Withdrawn CN110344371A (en) | 2019-07-24 | 2019-07-24 | For the spray polyurea coating anti-seepage processing method of reverse water pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110344371A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194598A (en) * | 2014-08-08 | 2014-12-10 | 大连怿文新材料科技发展有限公司 | Single-component polyuria preventive coating for agricultural irrigation concrete drainage channel and water duct, and preparation method of single-component polyuria preventive coating |
| CN204225034U (en) * | 2014-10-17 | 2015-03-25 | 上海勘测设计研究院有限公司 | The anti-seepage reinforcing structure of stone-laying dash building |
| CN105484206A (en) * | 2016-01-07 | 2016-04-13 | 中国电建集团华东勘测设计研究院有限公司 | Structure for eliminating reservoir bottom geomembrane impervous blanket reverse seepage pressure and construction method |
| CN207974002U (en) * | 2016-12-14 | 2018-10-16 | 北京星汉舟科技有限责任公司 | Quantification can reversed application concrete functional coating |
-
2019
- 2019-07-24 CN CN201910669605.2A patent/CN110344371A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194598A (en) * | 2014-08-08 | 2014-12-10 | 大连怿文新材料科技发展有限公司 | Single-component polyuria preventive coating for agricultural irrigation concrete drainage channel and water duct, and preparation method of single-component polyuria preventive coating |
| CN204225034U (en) * | 2014-10-17 | 2015-03-25 | 上海勘测设计研究院有限公司 | The anti-seepage reinforcing structure of stone-laying dash building |
| CN105484206A (en) * | 2016-01-07 | 2016-04-13 | 中国电建集团华东勘测设计研究院有限公司 | Structure for eliminating reservoir bottom geomembrane impervous blanket reverse seepage pressure and construction method |
| CN207974002U (en) * | 2016-12-14 | 2018-10-16 | 北京星汉舟科技有限责任公司 | Quantification can reversed application concrete functional coating |
Non-Patent Citations (1)
| Title |
|---|
| 李东辉等: "聚脲在回龙抽水蓄能电站上水库全库盆防渗工程中的应用", 《水电与抽水蓄能》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202730973U (en) | Concrete outer wall bolt hole leakproof structure | |
| CN108517899A (en) | Mouth high-pressure grouting leak stopping processing method is buried in the leakage drilling of deep basal pit diaphram wall | |
| CN206554832U (en) | Component and the grouting cable anchor and anchor pole using the component are only starched in a kind of hole | |
| CN205976019U (en) | Wicresoft prevents water blocking drain structure | |
| CN109629843A (en) | A kind of construction method for distress in concrete reparation | |
| CN108166517A (en) | For the shut-in well method and well-sealing device of superelevation floor height hydraulic pressure dewatering well of deep well | |
| KR102213806B1 (en) | Waterproofing method of structures | |
| KR102191009B1 (en) | Acting leakage prevention control method and underground leakage prevention system of subway station sturucture leakage disease | |
| CN105714942B (en) | A kind of anti-water pretreatment way of newly-built basement communication channel deformation joint water-stopping belt | |
| CN104060623A (en) | Open caisson structure provided with resistance reduction mechanism and dry excavation method of open caisson | |
| CN105442861B (en) | Drainage conduit of toilet percolating water backwater surface repair method | |
| CN103046513A (en) | Method for coating and sealing fracture of bed rock in uncovered heavy consolidation grouting | |
| CN110344371A (en) | For the spray polyurea coating anti-seepage processing method of reverse water pressure | |
| CN106246208B (en) | A kind of construction method of the naked rock grouting to waterproof of underground chamber | |
| CN102747722B (en) | Underground continuous wall joint close grouting and covering construction method and expansion rubber plug | |
| CN110374352A (en) | Concrete wall glue injection method and non-return streamer rubber head | |
| CN106759277A (en) | Grouting device, bottom-enlarging prefabricated pile tube, bottom-enlarging filling pile and its construction method | |
| CN208023622U (en) | A kind of epoxy resin and CMG grouting material waterproofing and leakage-stopping devices | |
| CN105220678A (en) | A kind of processing method of soil body sclerosis | |
| CN208380085U (en) | The draining pipe-through floor slab structure of a kind of ground leak | |
| CN210482214U (en) | Reverse water pressure leakage point seepage-proofing structure suitable for spraying polyurea coating on full-warehouse basin | |
| CN206581254U (en) | Grouting device and bottom-enlarging prefabricated pile tube | |
| CN109610488A (en) | A kind of form of construction work draining pressure relief device and foundation pit | |
| CN105696543B (en) | A kind of method that dam front row is seeped when red mud dump constructs sub- dam | |
| CN109723475A (en) | Hard rock tunnel water proof type single shell lining sprays Waterproof Construction Technique and its application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191018 |