CN104099913B - Concrete surface sealing method for water inlet and outlet flow passage of hydropower station - Google Patents
Concrete surface sealing method for water inlet and outlet flow passage of hydropower station Download PDFInfo
- Publication number
- CN104099913B CN104099913B CN201410334494.7A CN201410334494A CN104099913B CN 104099913 B CN104099913 B CN 104099913B CN 201410334494 A CN201410334494 A CN 201410334494A CN 104099913 B CN104099913 B CN 104099913B
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- Prior art keywords
- thick
- clean
- concrete
- slurry
- runner
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 title claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims description 27
- 239000003822 epoxy resin Substances 0.000 claims description 12
- 229920000647 polyepoxide Polymers 0.000 claims description 12
- 239000004593 Epoxy Substances 0.000 claims description 11
- 239000011398 Portland cement Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 239000004848 polyfunctional curative Substances 0.000 claims description 8
- 229910001651 emery Inorganic materials 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 230000003746 surface roughness Effects 0.000 abstract description 2
- 238000009991 scouring Methods 0.000 abstract 1
- 229920002472 Starch Polymers 0.000 description 6
- 235000019698 starch Nutrition 0.000 description 6
- 239000008107 starch Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a method for sealing the concrete surface of a water inlet and outlet runner of a hydropower station. The construction method is simple and convenient, easy to operate, scientific and environment-friendly, saves investment, has wide applicability, meets the durability of the runner concrete, enhances the anti-scouring capability, reduces the surface roughness, ensures the smooth and flat surface of the runner, improves the overall efficiency, ensures the engineering quality and prolongs the service life of the engineering.
Description
Technical field
The present invention relates to surface sealing process, be specifically related to a kind of power station inlet and outlet channel concrete surface sealing process.
Background technology
Inlet and outlet channel is comparatively large on power station whole efficiency (hydraulic performance) impact, and therefore, it designs and constructs very crucial to the operation of hydraulic structure.Power station inlet and outlet channel is generally polymorphic structure, formwork erection, prick muscle, the operation such as to build very complicated, particularly concrete placings difficulty, easily produces concrete common quality defect, such as honeycomb, pitted skin, crack etc.In addition in runner, flow velocity is comparatively large, and current are disorderly, make runner top layer concrete be subject to washing away of high-velocity flow, and local easily produces cavitation, and therefore, the concrete durability of runner and construction quality become the key of Hydropower Station Construction, and the difficulty of solution is larger.
Summary of the invention
the object of the invention is to:a kind of power station inlet and outlet channel concrete surface sealing process is provided, adopt this concrete surface sealing process to make the surface of inlet and outlet channel form one and connect firmly high strength shell, meet the durability of runner concrete, strengthen erosion resistibility, reduce surface roughness, guarantee water passage surface is smooth, improves whole efficiency.
technical solution of the present invention is thisinlet and outlet channel concrete surface sealing process comprises the following steps:
(1) concrete pretreatment: after runner is built 2 ~ 3 months, concrete runner inner wall wire brush is scrubbed clean, polish in honeycomb, pitted skin and uneven place, extremely micro-dew handstone is boundary, dust pneumatic gun in concrete crafters washes down, and with clear water flushing flow passage surface, after to be dried, enter first pass application;
(2) first pass application: concrete crafters cotton swab dips in clean slurry and tamps, more only starch runner inner surface Cylinder coating brush one time with EP-02 improved high-strength epoxy resin, make epoxy only starch full covering, the thick 0.3mm of clean pulp layer; When clean slurry is close to when just consolidating, carry out scraper full coat dress with thick slurry, the thick 0.5mm of thick pulp layer, thick slurry is mixed according to mass ratio 1:4:5 by T31 epoxy hardener, 42.5 ordinary portland cements and EP-02 improved high-strength epoxy resin; Second time application is entered after thick slurry solidifies 24 hours completely;
(3) second times applications: manually with the water passage surface after the application of emery paper polishing first pass, blow off with hair-dryer; Carry out application with thin pulp, thin pulp thickness 0.4mm, thin pulp is mixed according to mass ratio 1:1.5:5 by T31 epoxy hardener, 42.5 ordinary portland cements and EP-02 improved high-strength epoxy resin; When thin pulp is close to time just admittedly, then cover with clean slurry, the thick 0.3mm of clean pulp layer, and with blower fan runner ventilated and accelerate to solidify; Remove scaffold coating dead angle, whole runner construction processing is complete.
Advantage of the present invention is: construction method is easy, and processing ease is reduced investment outlay, science environmental protection, and the broad applicability had, guarantees workmanship, extends the service life of engineering.
Detailed description of the invention
Further illustrate technical solution of the present invention below in conjunction with specific embodiment, these embodiments can not be interpreted as it is restriction to technical scheme.
Embodiment 1: adopt the inlet and outlet channel concrete surface of following steps to ancient water-control project power station, the Yellow River, Huai'an to carry out Seal treatment
(1) concrete pretreatment: after runner is built 3 months, concrete runner inner wall wire brush is scrubbed clean, polish in honeycomb, pitted skin and uneven place, extremely micro-dew handstone is boundary, dust pneumatic gun in concrete crafters washes down, and with clear water flushing flow passage surface, after to be dried, enter first pass application;
(2) first pass application: concrete crafters cotton swab dips in clean slurry and tamps, more only starch runner inner surface Cylinder coating brush one time with EP-02 improved high-strength epoxy resin, make epoxy only starch full covering, the thick 0.3mm of clean pulp layer; When clean slurry is close to when just consolidating, carry out scraper full coat dress with thick slurry, the thick 0.5mm of thick pulp layer, thick slurry is mixed according to mass ratio 1:4:5 by T31 epoxy hardener, 42.5 ordinary portland cements and EP-02 improved high-strength epoxy resin; Second time application is entered after thick slurry solidifies 24 hours completely;
(3) second times applications: manually with the water passage surface after the application of emery paper polishing first pass, blow off with hair-dryer; Carry out application with thin pulp, thin pulp thickness 0.4mm, thin pulp is mixed according to mass ratio 1:1.5:5 by T31 epoxy hardener, 42.5 ordinary portland cements and EP-02 improved high-strength epoxy resin; When thin pulp is close to time just admittedly, then cover with clean slurry, the thick 0.3mm of clean pulp layer, and with blower fan runner ventilated and accelerate to solidify; Remove scaffold coating dead angle, whole runner construction processing is complete.
Embodiment 2: adopt the water inlet flow channel concrete surface of following steps to Gao Liangjian power station, Huai'an to carry out Seal treatment
(1) concrete post processing: after runner builds 2 months, concrete runner inner wall emery wheel scrubs clean, and polishes in honeycomb, pitted skin and uneven place, extremely micro-dew handstone is boundary, dust pneumatic gun in concrete crafters washes down, and with clear water flushing flow passage surface, enters first pass application after to be dried;
(2) first pass application: concrete crafters cotton swab dips in clean slurry and tamps, more only starch runner inner surface Cylinder coating brush one time with EP-02 improved high-strength epoxy resin, make epoxy only starch full covering, the thick 0.3mm of clean pulp layer; When clean slurry is close to when just consolidating, carry out scraper full coat dress with thick slurry, the thick 0.5mm of thick pulp layer, thick slurry is mixed according to mass ratio 1:4:5 by T31 epoxy hardener, 42.5 ordinary portland cements and EP-02 improved high-strength epoxy resin; Second time application is entered after thick slurry solidifies 24 hours completely;
(3) second times applications: manually with the water passage surface after the application of emery paper polishing first pass, blow off with hair-dryer; Carry out application with thin pulp, thin pulp thickness 0.4mm, thin pulp is mixed according to mass ratio 1:1.5:5 by T31 epoxy hardener, 42.5 ordinary portland cements and EP-02 improved high-strength epoxy resin; When thin pulp is close to time just admittedly, then cover with clean slurry, the thick 0.3mm of clean pulp layer, and with blower fan runner ventilated and accelerate to solidify; Remove scaffold coating dead angle, whole runner construction processing is complete.
embodiment 1-2inlet and outlet channel performance indications list
Claims (1)
1. power station inlet and outlet channel concrete surface sealing process, is characterized in that this surface sealing process comprises the following steps:
(1) concrete pretreatment: after runner is built 2 ~ 3 months, concrete runner inner wall wire brush is scrubbed clean, polish in honeycomb, pitted skin and uneven place, extremely micro-dew handstone is boundary, dust pneumatic gun in concrete crafters washes down, and with clear water flushing flow passage surface, after to be dried, enter first pass application;
(2) first pass application: concrete crafters cotton swab dips in clean slurry and tamps, then with clean slurry by runner inner surface Cylinder coating brush one time, make the full covering of clean slurry, the thick 0.3mm of clean pulp layer; When clean slurry is close to when just consolidating, carry out scraper full coat dress with thick slurry, the thick 0.5mm of thick pulp layer, thick slurry is mixed according to mass ratio 1:4:5 by T31 epoxy hardener, 42.5 ordinary portland cements and EP-02 improved high-strength epoxy resin; Second time application is entered after thick slurry solidifies 24 hours completely;
(3) second times applications: manually with the water passage surface after the application of emery paper polishing first pass, blow off with hair-dryer; Carry out application with thin pulp, thin pulp thickness 0.4mm, thin pulp is mixed according to mass ratio 1:1.5:5 by T31 epoxy hardener, 42.5 ordinary portland cements and EP-02 improved high-strength epoxy resin; When thin pulp is close to time just admittedly, then cover with clean slurry, the thick 0.3mm of clean pulp layer, and with blower fan runner ventilated and accelerate to solidify; Remove scaffold coating dead angle, whole runner construction processing is complete;
Clean slurry wherein in step is that EP-02 improved high-strength epoxy resin is starched only.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410334494.7A CN104099913B (en) | 2014-07-15 | 2014-07-15 | Concrete surface sealing method for water inlet and outlet flow passage of hydropower station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410334494.7A CN104099913B (en) | 2014-07-15 | 2014-07-15 | Concrete surface sealing method for water inlet and outlet flow passage of hydropower station |
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| Publication Number | Publication Date |
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| CN104099913A CN104099913A (en) | 2014-10-15 |
| CN104099913B true CN104099913B (en) | 2015-10-28 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105064398A (en) * | 2015-08-19 | 2015-11-18 | 中国能源建设集团天津电力建设有限公司 | One-time overall pouring construction method for nuclear powder single-hole GD gallery |
| CN106934104B (en) * | 2017-02-17 | 2020-08-28 | 江苏大学 | Design method of siphon type water outlet flow channel for pump station |
| CN109516726A (en) * | 2018-11-21 | 2019-03-26 | 中国电建集团成都勘测设计研究院有限公司 | Sealing off and covering anchorage material suitable for flow turbulence area anchor cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4542021B2 (en) * | 2005-05-12 | 2010-09-08 | Ａｇｃポリマー建材株式会社 | And drainage concrete structures and repair methods |
| CN102296570A (en) * | 2011-06-27 | 2011-12-28 | 中国建筑第二工程局有限公司 | Construction method of large cast-in-place reinforced concrete water inlet channel |
| JP4844863B2 (en) * | 2003-10-16 | 2011-12-28 | 独立行政法人農業・食品産業技術総合研究機構 | Rehabilitation structure of waterway and its construction method |
| CN103321187A (en) * | 2013-07-03 | 2013-09-25 | 国家电网公司 | Overflow face protection method |
| CN103643657A (en) * | 2013-12-24 | 2014-03-19 | 中国水电十一局郑州科研设计有限公司 | Deep-hole chemical grouting construction method applied to water leakage treatment of hydroelectric dam |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4844863B2 (en) * | 2003-10-16 | 2011-12-28 | 独立行政法人農業・食品産業技術総合研究機構 | Rehabilitation structure of waterway and its construction method |
| JP4542021B2 (en) * | 2005-05-12 | 2010-09-08 | Ａｇｃポリマー建材株式会社 | And drainage concrete structures and repair methods |
| CN102296570A (en) * | 2011-06-27 | 2011-12-28 | 中国建筑第二工程局有限公司 | Construction method of large cast-in-place reinforced concrete water inlet channel |
| CN103321187A (en) * | 2013-07-03 | 2013-09-25 | 国家电网公司 | Overflow face protection method |
| CN103643657A (en) * | 2013-12-24 | 2014-03-19 | 中国水电十一局郑州科研设计有限公司 | Deep-hole chemical grouting construction method applied to water leakage treatment of hydroelectric dam |
Non-Patent Citations (2)
| Title |
|---|
| 新材料新工艺在高良涧水电站加固工程中的应用;孙海波;《江苏水利》;20110228(第2期);全文 * |
| 浅谈丙乳砂浆在碳化混凝土结构加固中的应用;徐哲等;《江苏水利》;20120731(第7期);全文 * |
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