CN1718934A - Construction method for preventing seepage of channel joints - Google Patents
Construction method for preventing seepage of channel joints Download PDFInfo
- Publication number
- CN1718934A CN1718934A CN 200510042936 CN200510042936A CN1718934A CN 1718934 A CN1718934 A CN 1718934A CN 200510042936 CN200510042936 CN 200510042936 CN 200510042936 A CN200510042936 A CN 200510042936A CN 1718934 A CN1718934 A CN 1718934A
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- Prior art keywords
- joint
- seam
- construction
- channel
- fly ash
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 72
- 239000010881 fly ash Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000003973 paint Substances 0.000 claims abstract description 15
- 239000004567 concrete Substances 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 239000005871 repellent Substances 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 238000007711 solidification Methods 0.000 claims description 6
- 230000008023 solidification Effects 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 2
- 239000011414 polymer cement Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 230000001680 brushing effect Effects 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 3
- 230000006750 UV protection Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000009417 prefabrication Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 230000006378 damage Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000011083 cement mortar Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a construction method of channel joints, which uses fly ash to synthesize channel joint anti-seepage materials to carry out joint construction on concrete channels paved by prefabrication or cast-in-place injection, and comprises the following construction steps: reserving seams for concrete channels paved with prefabricated or cast-in-place concrete, filling materials are filled in the seams to form flexible seam filling layers, gaps on the upper portions of the seam filling layers are cleaned, cleanness and dryness are kept, and waterproof paint is coated on two side walls of the cleaned seam walls; then filling the fly ash synthetic channel seam seepage-proofing material until the seams are flush, coating waterproof paint on the two side walls of the upper part of the seam filling layer and the range of 1cm of the extension of the two side walls to form a compact layer, namely finishing the seam construction of the flush joint; for the vertical channel joint of the canal, the joint opening needs to be closed, and then the joint impervious material is poured from top to bottom, so that the joint construction is completed. The method can improve the construction speed, ensure the quality of the joint, reduce the construction cost, and has strong aging resistance, ultraviolet resistance and good weather resistance, and the elongation of the joint can reach 400 percent.
Description
Technical field
The invention belongs to agricultural irrigation channel joint job practices, particularly a kind of job practices of channel seam seepage control.
Background technology
Development along with social economy, civilization, people pay attention to more to water resource environment, particularly China has been a poor-water state, using water wisely is the vital task that country is concerned about, agricultural water is the water rich and influential family of China, about 72% proportion, and agriculture water delivery loss is maximum, canal seepage accounts for 50% in the water delivery, and wherein the seam seepage control technology is the focus of water conservancy industry care in recent years.
At present, channel joint adopts asphalt mortar, bituminous mortar, malthoid, polyvinyl chloride, tar plastic mortars etc. more, and there is following shortcoming in these methods:
1, can not combine closely and former concrete contact surface often produces the crack and seepage with original concrete;
2, poor plasticity, elongation per unit length is little, and frost heaving resistant is relatively poor, often after cold and hot variation season, produce some problem of frost heave, will bring some cracks to channel because of expanding with heat and contract with cold, northern area is particularly outstanding, causes the increasing of maintenance cost and canal seepage loss serious.
3, construction trouble, heat construction is often adopted in the above-mentioned material construction, and execution conditions require high, the short maintenance construction repeatedly that causes of engineering life-span.Even construct again.
2003, the applicant with the invention the fly ash synthesized channel joint impervious material application Chinese patent, application number 200310118993.4, in this material popularization process afterwards, find that further this material has good anti-seepage effect for the seam of channel, prove that this material is a kind of ideal material of present channel joint, but in work progress, use this material not have a kind of process of shaping, cause problems such as the very big or workmanship of the waste of material is inconsistent, and tend to make original detail estimate over-expense in the work progress.
Summary of the invention
For the higher generalization fly ash synthesized channel joint impervious material, the purpose of this invention is to provide a kind of suitable channel seam seepage control job practices of this material of using, to adapt to the seam seepage control construction of various irrigation canals, satisfy the seam demand of channel, and improve the impervious material performance and the whole construction costs that reduces of channel.
The technical scheme that realizes the invention described above purpose is: a kind of job practices of channel seam seepage control, this method uses fly ash synthesized channel joint impervious material that the concrete canal of laying prefabricated or cast-in-place notes is carried out the seam construction, it is characterized in that, follow these steps to carry out:
1) concrete canal of laying prefabricated or cast-in-place notes is reserved seam, and its joint gap is 0.5cm～2.0cm;
2) at first in seam, insert filler, its thickness be apart from the following 1.0cm of joint surface to the seam bottom, form flexible joint filling layer, filler is large or other plastic materials of sand;
3) clear up the joint filling slit, layer top and the drying that keeps clean, and apply one deck water-repellent paint as bed material in the wall two side of cleaning out, slit, coating amount is 0.22kg/m
2
4) it is concordant to seam to pour into fly ash synthesized channel joint impervious material then, treat after its surface solidification in two side, joint filling layer top and two side extension 1cm scope applies the water-repellent paint that is equal to the step 3) coating amount once more, make water-repellent paint and cement and fly ash synthesized channel joint impervious material thereof form compacted zone, promptly finish the seam construction of flush joint;
For the upright seam in the road of canal, then need the sealing sealing is poured into joint impervious material then from top to bottom, treat promptly to finish the seam construction after the joint filler surface solidification.
The present invention has provided the job practices that is fit to for promoting novel fly ash synthesized channel joint impervious material, adopt this method both can improve speed of application, good seam flexibility is arranged, adapt to frost-heaving deformation, ageing-resistant, anti-uv-ray is strong, weather resisteant good, has guaranteed the construction quality of seam, can reduce construction costs again, solved owing to expand with heat and contract with cold and cause the difficult problem in channel joint crack, guaranteed that channel seam seepage control has reached predetermined technique effect.
Description of drawings
Fig. 1 is construction process figure of the present invention;
Fig. 2 is the seam schematic diagram between the channel joint.
The present invention is described in further detail below in conjunction with accompanying drawing.
The specific embodiment
Referring to accompanying drawing 1,2, according to method of the present invention, on the trapezoidal concrete canal of a bottom width 50cm both sides slope 60cm, concrete 3 every 5m have a shrinkage joint, shrinkage joint width 1cm, degree of depth 4cm.At first insert filler 1 in the bottom in slit, clear up the channel joint of filler 1 top then, on seam wall two sides, be coated with waterproof agent 2, upright seam for channel, adopt materials such as paper tape, adhesive tape or polyethylene lath to seal, cut off base angle or special-purpose material filling machine on one side with polybag and from top to bottom pour into fly ash synthesized channel joint impervious material 4, specifically comprise the steps:
A. at first lay prefabricated section or cast-in-place casting concrete block 3, stay seam, stitch wide 0.5～2.0cm;
B. adopt joint filling to handle to the slit, pointing can be used the grains of sand (particle diameter 0.1-0.5cm) or earth material or other plastic materials (foamed plastics or plastic plate) joint filling, the joint filling layer must be below the 1cm of distance top layer, must stop the part of the 1cm degree of depth in other words on the upper strata and use for joint filler; The purpose that adds the joint filling layer is to save fly ash synthesized channel joint impervious material.
C. must clear up the slit before smearing, and make slotted wall reach cleaning, drying; Pour into fly ash synthesized channel joint impervious material 4 then.Treat to be coated with the JD-PCM interfacial agents in both sides, seam top 1cm part scope after its dry tack free, form compacted zone.
When d. adopting the cementation of fissures with the first material of fly ash synthesized channel joint impervious material: second material=preparation in 1: 2 is placed in the polybag, and polybag is cut off base angle on one side, makes this material flow into seam from the base angle, or the special-purpose material filling machine cementation of fissures from top to bottom.
At first to seal sealing when f. pouring into fly ash synthesized channel joint impervious material for upright seam, its joint filling material is selected from paper tape, adhesive tape or polyethylene lath or other sheet material, has close-burning material then to be coated with cured processing with fly ash synthesized channel joint impervious material in it.
When adopting the manual cementation of fissures, after earlier fly ash synthesized channel joint impervious material being mixed in plastic tub with the ratio of second material according to the first material at 1: 2 and being stirred well to uniform black, pack in the polybag of having got ready, cut off one jiao of polybag bottom, make it form the hole of diameter, aperture is aimed at slit, trapezoidal channel bottom push gently, make fly ash synthesized channel joint impervious material enter the slit less than 1cm, cover the pointing upper strata, and it is flushed with top, slit.Upright seam for channel is handled, earlier latex is spread upon outside the slit, slope, then the wide newspaper of about 3cm is sticked on the slit, slope, firm back to be pasted (under the normal temperature about 5 minutes) pours into fly ash synthesized channel joint impervious material that slit to slit is concordant to get final product up.
Packing layer is inserted in bottom in the slit in the construction, and the slit spraying waterproof agent to the packing layer top pours into fly ash synthesized channel joint impervious material more then, pours into fly ash synthesized channel joint impervious material for upright seam of channel again after processing is sealed in the employing slit.
Its water-repellent paint can be used JD-PCM interfacial agents (Harbin City gold dyke water material Co., Ltd produces) or polymer cement waterproof paint (JS water-repellent paint, the green all waterproofing materialss in Hangzhou Co., Ltd produces) or chloroprene rubber adhesive agent (production of the green all waterproofing materialss in Hangzhou Co., Ltd).
Above-mentioned cement works thing water-repellent paint is sprayed at the cement mortar surface can infiltrate inner several centimetres, alkali substance reaction with cement inside, form water-fast gelinite, stop up space and capillary channel, form fine and close permanent water-resistant layer, can prevent that moisture from being oozed out by seam crossing by concrete pore, forming frost-heave force in the winter time takes off fly ash synthesized channel joint impervious material and slit to split, because it is an inorganic mixture, be not subjected to water, ultraviolet ray, the influence of external environments such as temperature, can make cement mortar solidification even, prevent local cracking or crack, form and have permanent waterproof effect compacted zone.Upright seam for channel, the paper tape that seals usefulness not only can prevent that fly ash synthesized channel joint impervious material from trickling and be convenient to condense but also can not remove and not pollute channel when pouring into, other joint filling material all can be removed after 2 hours pouring into fly ash synthesized channel joint impervious material, to avoid polluting channel.Can first filling flexible material for the slit greater than the part of 1cm, so neither hinder the flexible of slit can reduce the seam cost again.The first material of fly ash synthesized channel joint impervious material: second material=1: 2, can surface solidification after pouring into 2 hours under the normal temperature summer and do not trickle, can bond with limit, channel slit wall after 24 hours, the experiment proved that, its width of fly ash synthesized channel joint impervious material and thickness that this method adopts are 1cm, and the hydraulic pressure that it can anti-1Mpa after 80 hours can be freeze proof, it is ageing-resistant, anti-uv-ray is strong, weather resisteant is good, and elongation per unit length can reach 400%.
Through to the experiment carried out after this job practices seam and the operative norm of product, the key technical indexes is as follows:
| Sequence number | Project | The JC/T482-2003 technical indicator | The PTN technical indicator | |
| 1 | Density | Setting ± 0.1 | 1.05g/ | |
| 2 | Surface drying time | ≤ | 5hr | |
| 3 | Working life | ≥ | ||
| 4 | Elastic restoration ratio | ≥70％ | 85％(1h) | |
| 5 | (60%) modulus (20 ℃) stretches | ＞0.6MPa | 0.76MPa | |
| 6 | Sticking hot strength knot property elongation at break stretches | 0.75MPa 360％ | ||
| 7 | Surely stretch caking property | 60% does not have destruction | 100% does not have destruction | |
| 8 | Caking property is stretched in immersion surely | 60% does not have destruction | 100% does not have destruction | |
| 9 | Compression and Expansion circulation (+30～-30%) | Do not have for 2000 times and destroy | ||
| 10 | Freeze thawing circulation in the water (20～25 ℃ stretch 30%) | 50 crack-frees | ||
| 11 | Resistance to ag(e)ing (300W, 50 ℃ of ultraviolet irradiation 300h) | Surface flawless (elongation rate reduces by 4%) | ||
| 12 | Water swelling | 0～50%, decide through consultation according to customer requirements |
Annotate: test reference standard: GB/T134771.～20-2002 product operative norm: JC/T482-2003
Job practices of the present invention is novel fly ash synthesized channel joint impervious material owing to what adopt, its first material: second material=1: 2, comparison with existing job practices impervious material performance, its job practices is rationally simple, can improve speed of application, the seam life-span of its channel increases considerably, and satisfies the retractility of channel, and its anti-seepage effect is very satisfactory.
Several impervious material performances relatively
| The seam mode | Joint gap (cm) | Every meter cost (unit) | Life-span (year) | Resistance to compression (MP) | Pollute |
| This method | 1 | 0.9 | 25 | 2 | Do not have |
| | 3 | 0.5 | 4 | 0.2 | Have |
| | 3 | 0.4 | 5 | 0.1 | Have |
| The | 3 | 0.5 | 2 | 1 | Have |
| | 3 | 0.4 | 2 | 0.6 | Do not have |
Claims (6)
1. the job practices of a channel seam seepage control, this method use fly ash synthesized channel joint impervious material that the concrete canal of laying prefabricated or cast-in-place notes is carried out the seam construction, it is characterized in that, follow these steps to carry out:
1) concrete canal of laying prefabricated or cast-in-place notes is reserved seam, and its joint gap is 0.5cm～2.0cm;
2) at first in seam, insert filler, its thickness be apart from the following 1.0cm of joint surface to the seam bottom, form flexible joint filling layer, filler is large or other plastic materials of sand;
3) clear up the joint filling slit, layer top and the drying that keeps clean, and apply one deck water-repellent paint as bed material in the wall two side of cleaning out, slit, coating amount is 0.22kg/m
2
4) it is concordant to seam to pour into fly ash synthesized channel joint impervious material then, treat after its surface solidification in two side, joint filling layer top and two side extension 1cm scope applies the water-repellent paint that is equal to the step 3) coating amount once more, make water-repellent paint and cement and fly ash synthesized channel joint impervious material thereof form the seam construction that compacted zone is promptly finished flush joint;
For the upright seam in the road of canal, then need the sealing sealing is poured into joint impervious material then from top to bottom, treat promptly to finish the seam construction after the joint filler surface solidification.
2. the method for claim 1 is characterized in that, described plastic material is selected from cystosepiment or other flexible material.
3. the method for claim 1 is characterized in that, the particle diameter of described gravel is the mixing sand grains of 0.1～0.3cm.
4. the method for claim 1 is characterized in that, described water-repellent paint adopts agricultural atomizer spraying or artificial brushing.
5. the method for claim 1 is characterized in that, the material of described sealing sealing is selected paper tape or adhesive tape or polyethylene lath or other sheet material, has close-burning material then to be coated with cured processing with fly ash synthesized channel joint impervious material in it.
6. the method for claim 1 is characterized in that, described water-repellent paint is selected from interfacial agents or polymer cement waterproof paint or chloroprene rubber adhesive agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100429361A CN1317458C (en) | 2005-07-14 | 2005-07-14 | Construction method for preventing seepage of channel joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100429361A CN1317458C (en) | 2005-07-14 | 2005-07-14 | Construction method for preventing seepage of channel joints |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1718934A true CN1718934A (en) | 2006-01-11 |
| CN1317458C CN1317458C (en) | 2007-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100429361A Expired - Fee Related CN1317458C (en) | 2005-07-14 | 2005-07-14 | Construction method for preventing seepage of channel joints |
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| Country | Link |
|---|---|
| CN (1) | CN1317458C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684643B (en) * | 2008-09-05 | 2012-05-23 | 西北农林科技大学 | Application of coal ash synthetic channel jointing material on damping interface or in water construction |
| CN112723833A (en) * | 2021-01-28 | 2021-04-30 | 山西大学 | Double seepage-proofing method based on coal-based solid waste |
| CN113585182A (en) * | 2021-07-29 | 2021-11-02 | 新疆万华昌兴节能科技有限责任公司 | Application of LEAC waterproof coating in channel seepage prevention and channel seepage prevention method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398751C (en) * | 2007-06-28 | 2008-07-02 | 北京市水利科学研究所 | Natural river alta-mud sandwich seepage-reducing method |
| CN101349045B (en) * | 2008-09-05 | 2010-06-02 | 西北农林科技大学 | Application of coal ash synthetic channel jointing material on damping interface or in water construction |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4430021A (en) * | 1981-11-23 | 1984-02-07 | Ecological Professional Industries, Inc. | Secure chemical waste landfill |
| CN1242126C (en) * | 2003-12-15 | 2006-02-15 | 西北农林科技大学 | Channel joint leakage prevention construction method |
| CN1228409C (en) * | 2003-12-15 | 2005-11-23 | 西北农林科技大学 | Flyash-synthesized channel joint impervious material and preparation method thereof |
-
2005
- 2005-07-14 CN CNB2005100429361A patent/CN1317458C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684643B (en) * | 2008-09-05 | 2012-05-23 | 西北农林科技大学 | Application of coal ash synthetic channel jointing material on damping interface or in water construction |
| CN112723833A (en) * | 2021-01-28 | 2021-04-30 | 山西大学 | Double seepage-proofing method based on coal-based solid waste |
| CN112723833B (en) * | 2021-01-28 | 2022-06-03 | 山西大学 | Double seepage-proofing method based on coal-based solid waste |
| CN113585182A (en) * | 2021-07-29 | 2021-11-02 | 新疆万华昌兴节能科技有限责任公司 | Application of LEAC waterproof coating in channel seepage prevention and channel seepage prevention method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1317458C (en) | 2007-05-23 |
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