CN102561720A - Plugging and leakage-stopping method under flowing water condition - Google Patents
Plugging and leakage-stopping method under flowing water condition Download PDFInfo
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- CN102561720A CN102561720A CN2012100360879A CN201210036087A CN102561720A CN 102561720 A CN102561720 A CN 102561720A CN 2012100360879 A CN2012100360879 A CN 2012100360879A CN 201210036087 A CN201210036087 A CN 201210036087A CN 102561720 A CN102561720 A CN 102561720A
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Abstract
The invention discloses a plugging and leakage-stopping method under a flowing water condition, which comprises the following steps of: 1, arranging drill holes at a seepage water source and a water outlet of a crack or an expansion joint; 2, replacing serosity by colored water after the completion of the drill holes to carry out analog plugging; 3, testing water flow velocity, flux and water pressure parameters during the analog, and calculating and determining the relation of the water flow velocity and flux and the relation of the amount of chemical serosity and gelatinization time, so as to ensure that the serosity in the crack or the expansion joint solidifies just when the water flow flows out of the water outlet with the serosity; and 4, grouting; therefore, the plugging work under the flowing water condition is completed through the above steps. The plugging and leakage-stopping method under the flowing water condition method is suitable for plugging the concrete crack or the expansion joint seepage under the opened flowing water condition, particularly for the plugging under the opened quick-seepage or jet-flow flowing water condition, therefore, the security and the durability of the structure are improved, the service life is prolonged, and convenience in construction as well as excellent effectiveness and economic benefit can be achieved.
Description
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Technical field
The present invention relates to the shutoff leak-stopping field at distress in concrete or shrinkage joint, particularly a kind of seepage that is applicable to is the shutoff under the open moving water condition, be particularly useful for open ooze soon, leak or the moving water condition of jet under shutoff.
Background technology
According to the geometry of seepage, seepage can be divided into point (concentrating) seepage, line (crack, shrinkage joint) seepage and face seepage (loose and ooze); Press the speed of percolating water, can be divided into slowly and ooze, ooze soon, leak and jet.Water amount of seepage is relevant with seepage paths length, seepage paths sectional area and seepage pressure etc.
" tech enterprises in China " 2009 the 19th phases 172 pages " chemical grouting application in the leak stopping of distress in concrete sealing " have been put down in writing a kind of chemical grouting method; Certain chemical material (inorganic or organic material) is mixed with solution; With force feed equipment such as chemical grouting pumps it is poured in stratum or the slit; Make its infiltration, diffusion, gelling or curing, in order to underpinning, waterproofing and leakage-stopping.Especially mentioned the brill injected hole, angle and fracture faces in angle of 45 degrees, a plurality of injected hole interlaced arrangement are around the crack; Guarantee the cutting crack of holing; Rather than vertical with concrete surface, the problem of existence is, in filling process since the air of partial portion or shipwreck to discharge; Possibly form airtight cavity, thereby influence the effect of shutoff.Particularly flowing for the crack merging, dankly plugging effect is not ideal.
Summary of the invention
Technical problem to be solved by this invention provides the shutoff leak-stopping method under a kind of moving water condition, can realize open ooze soon, leak or the moving water condition of jet under shutoff.
For solving the problems of the technologies described above, the technical scheme that the present invention adopted is: the shutoff leak-stopping method under a kind of moving water condition may further comprise the steps:
One, percolating water source and the delivery port place to crack or shrinkage joint arranges boring;
Two, replace slurries with color water after boring is accomplished, simulate shutoff;
When three, simulating, survey meter water flow velocity, flow and water pressure parameter, calculate and confirm water flow velocity and the consumption of discharge and chemical grout and the relation of gelling time, make the current band slurries and just flow out delivery port, slurries promptly solidify in crack or the shrinkage joint;
Four, grouting;
Accomplish the shutoff work under the moving water condition through above step.
The slurries setting time of preparation slightly faster than current through the crack or the required time of shrinkage joint.
Accelerate setting time through in chemical grout, adding catalyzer, perhaps add retarding agent and slow down setting time.
Described chemical grout is a soluble polyurethane chemical grouting material.
Described catalyzer is triethylamine or organotin.
Described retarding agent is an acyl chlorides.
Slurries begin after the delivery port discharge, oppositely to be in the milk by delivery port.
Which kind of seepage no matter, the basic principle of leak stopping are " go up stifled row down, stifled row combine " and be " arrange earlier and afterwards block up, orderly sealing ".Distress in concrete or shrinkage joint under open moving water condition, especially open ooze soon or the moving water condition of jet under, through boring and to select for use a kind of be carrier with water, water is that thinner is again the chemical material of curing compound, can realize quick sealing by mentioned above principle.For example, LW soluble polyurethane chemical grouting material, this material are a kind of impervious blocking materials rapidly and efficiently; Have the good hydrophilicity ability, water is thinner, is again curing compound; First dispersion and emulsion behind the slurries chance water, and then gel is fixed, induration is an elastic body; But and water-swellable, have elastic waterstop and with the dual-use function of water sealing.Can under humidity or water burst condition, be in the milk, be applicable to that the sealing of deformation crack and structural joint is handled.
The present invention is applicable to that distress in concrete or shrinkage joint seepage are the shutoff under the open moving water condition; Be particularly useful for open oozing soon or the shutoff down of the moving water condition of jet, safety, the durability of raising works prolong its application life; It is convenient to construct, and has good actual effect and economic benefit.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is a layout sketch map of the present invention.
The specific embodiment
The first step is arranged the suitably boring of size of aperture to crack or shrinkage joint earlier.In Fig. 1, boring divides the boring 1 of percolating water source to hole 2 two kinds with delivery port.
1, the position, percolating water source at as close as possible crack or shrinkage joint is answered in its whole hole site of the boring in the source of percolating water; With as much as possible with water seal beyond concrete structure; Prevent that percolating water from corroding or corrosion works, reduce internal penetration pressure, help building safety.
2, the delivery port place at as close as possible crack or shrinkage joint is answered in its whole hole site of the boring at delivery port place, with the effective water blockoff area of the increase of maximum possible, guarantees the ageing and reliability of leak stopping.
Second step, after boring is accomplished, adopt the way of packer permeability test, replace slurries with color water earlier, simulate leak stopping.During simulation, survey parameters such as meter water flow velocity, flow and water pressure, confirm to make water flow velocity and the consumption of discharge and chemical grout and the relation of gelling time the current band slurries and just go out the aperture, promptly solidify in the crack thereby calculate.
Certain hydraulic engineering upper reaches earth rock cofferdam concrete cut, the riverbed following body of wall of middle part water level has a place crack to occur, forms the moving open seepage of water.After deliberation; Adopt of upstream face (percolating water source) boring of body of wall back side to body of wall; Get discharge pressure with reference to the reservoir level and the crack discrepancy in elevation; Be slightly larger than water-head pressure with pressure, replace slurries to be pressed into color water and measure leakage in the seam about 80L/min, flow velocity (contain, stitch in the summation of flow velocity) about 1.2m/6s in the hole in.In view of the above, LW slurries setting time by slightly faster than current through the preparation of time in whole crack, the flow velocity of for example fetching water is that the parameter of 1.2m/5s second is configured, and solidifies fully when making slurries flow out to the delivery port place.
The 3rd step, adopt grout pump to inject slurries, blocked seepage rapidly, accomplish leak stopping work.In case of necessity, can be in the milk by delivery port is counter.
The LW slurries are meant the LW soluble polyurethane chemical grouting material, and this material is a kind of impervious blocking material rapidly and efficiently, and having good hydrophilicity can; Water is thinner, is again curing compound, first dispersion and emulsion behind the slurries chance water; And then gel is fixed; Induration is an elastic body, but and water-swellable, have elastic waterstop and with the dual-use function of water sealing.Can under humidity or water burst condition, be in the milk, be applicable to that the sealing of deformation crack and structural joint is handled.
LW slurries setting time is relevant with water yield size with scene temperature, and the speed scene is adjustable, general can accelerate to solidify through interpolation catalyzer (triethylamine or organotin), perhaps adds retarding agent (acyl chlorides) and can slow down and solidify.Specifically addition can join, measure, compare through many group examinations in the cup, chooses one group of suitable being used at last and constructs.
After certain hydraulic engineering dam retaining, flood discharge monolith upper reaches dam body has place's joint seal sheet because the built on stilts sealing that makes of concrete lost efficacy, and the moving open seepage of water in gallery, occurs, takes above-mentioned same procedure, effectively, has promptly blocked seepage.
Claims (7)
1. the shutoff leak-stopping method under the moving water condition is characterized in that may further comprise the steps:
One, percolating water source and the delivery port place to crack or shrinkage joint arranges boring;
Two, replace slurries with color water after boring is accomplished, simulate shutoff;
When three, simulating, survey meter water flow velocity, flow and water pressure parameter, calculate and confirm water flow velocity and the consumption of discharge and chemical grout and the relation of gelling time, make the current band slurries and just flow out delivery port, slurries promptly solidify in crack or the shrinkage joint;
Four, grouting;
Accomplish the shutoff work under the moving water condition through above step.
2. the shutoff leak-stopping method under a kind of moving water condition according to claim 1 is characterized in that: the slurries setting time of preparation slightly faster than current through the crack or the required time of shrinkage joint.
3. the shutoff leak-stopping method under a kind of moving water condition according to claim 1 is characterized in that: accelerate setting time through in chemical grout, adding catalyzer, perhaps add retarding agent and slow down setting time.
4. the shutoff leak-stopping method under a kind of moving water condition according to claim 3 is characterized in that: described chemical grout is a soluble polyurethane chemical grouting material.
5. the shutoff leak-stopping method under a kind of moving water condition according to claim 3 is characterized in that: described catalyzer is triethylamine or organotin.
6. the shutoff leak-stopping method under a kind of moving water condition according to claim 3 is characterized in that: described retarding agent is an acyl chlorides.
7. the shutoff leak-stopping method under a kind of moving water condition according to claim 1 is characterized in that: slurries begin after the delivery port discharge, oppositely to be in the milk by delivery port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210036087.9A CN102561720B (en) | 2012-02-17 | 2012-02-17 | Plugging and leakage-stopping method under flowing water condition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210036087.9A CN102561720B (en) | 2012-02-17 | 2012-02-17 | Plugging and leakage-stopping method under flowing water condition |
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| CN102561720A true CN102561720A (en) | 2012-07-11 |
| CN102561720B CN102561720B (en) | 2014-12-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047620A (en) * | 2014-06-23 | 2014-09-17 | 冀中能源峰峰集团有限公司 | Underground tunnel large dynamic water plugging method |
| CN106836311A (en) * | 2017-03-31 | 2017-06-13 | 辽宁华三建设工程技术有限公司 | A kind of hypogee treating seepage water drainage structure |
| CN109184255A (en) * | 2018-10-31 | 2019-01-11 | 山东建筑大学 | A method of utilizing microorganism grout sealing outer wall of basement crack |
| CN110952502A (en) * | 2019-12-02 | 2020-04-03 | 中建长远建设有限公司 | Dam seepage-proofing treatment method |
| CN111779303A (en) * | 2020-07-03 | 2020-10-16 | 厦门吉龙居防水工程有限公司 | Grouting plugging construction method |
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| JP2006248088A (en) * | 2005-03-11 | 2006-09-21 | Isamu Mizobuchi | Method for cleaning bored hole for injecting grout agent |
| US20080260473A1 (en) * | 2007-04-17 | 2008-10-23 | Smith Eric W | Underground filling and sealing method |
| CN101654907A (en) * | 2009-09-11 | 2010-02-24 | 中国水利水电第九工程局有限公司 | High-flow high-speed jet plugging grouting technique under high-pressure water head of hydropower station |
| CN101736719A (en) * | 2010-01-22 | 2010-06-16 | 中国水电顾问集团华东勘测设计研究院 | Construction method for dam body seepage preventing curtain grouting |
| CN101768982A (en) * | 2010-02-08 | 2010-07-07 | 高振伟 | Method and device for eliminating underground building curtain water burst and quick sand |
| CN101864778A (en) * | 2010-06-30 | 2010-10-20 | 广东省基础工程公司 | Method for leaking stoppage of external wall of underground structure |
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2012
- 2012-02-17 CN CN201210036087.9A patent/CN102561720B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006248088A (en) * | 2005-03-11 | 2006-09-21 | Isamu Mizobuchi | Method for cleaning bored hole for injecting grout agent |
| US20080260473A1 (en) * | 2007-04-17 | 2008-10-23 | Smith Eric W | Underground filling and sealing method |
| CN101654907A (en) * | 2009-09-11 | 2010-02-24 | 中国水利水电第九工程局有限公司 | High-flow high-speed jet plugging grouting technique under high-pressure water head of hydropower station |
| CN101736719A (en) * | 2010-01-22 | 2010-06-16 | 中国水电顾问集团华东勘测设计研究院 | Construction method for dam body seepage preventing curtain grouting |
| CN101768982A (en) * | 2010-02-08 | 2010-07-07 | 高振伟 | Method and device for eliminating underground building curtain water burst and quick sand |
| CN101864778A (en) * | 2010-06-30 | 2010-10-20 | 广东省基础工程公司 | Method for leaking stoppage of external wall of underground structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047620A (en) * | 2014-06-23 | 2014-09-17 | 冀中能源峰峰集团有限公司 | Underground tunnel large dynamic water plugging method |
| CN106836311A (en) * | 2017-03-31 | 2017-06-13 | 辽宁华三建设工程技术有限公司 | A kind of hypogee treating seepage water drainage structure |
| CN109184255A (en) * | 2018-10-31 | 2019-01-11 | 山东建筑大学 | A method of utilizing microorganism grout sealing outer wall of basement crack |
| CN110952502A (en) * | 2019-12-02 | 2020-04-03 | 中建长远建设有限公司 | Dam seepage-proofing treatment method |
| CN111779303A (en) * | 2020-07-03 | 2020-10-16 | 厦门吉龙居防水工程有限公司 | Grouting plugging construction method |
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| CN102561720B (en) | 2014-12-10 |
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Granted publication date: 20141210 Termination date: 20180217 |