CN201567564U - Occluding belt for plugging in grouting of water-enriched stratum - Google Patents
Occluding belt for plugging in grouting of water-enriched stratum Download PDFInfo
- Publication number
- CN201567564U CN201567564U CN2009203163490U CN200920316349U CN201567564U CN 201567564 U CN201567564 U CN 201567564U CN 2009203163490 U CN2009203163490 U CN 2009203163490U CN 200920316349 U CN200920316349 U CN 200920316349U CN 201567564 U CN201567564 U CN 201567564U
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- CN
- China
- Prior art keywords
- grouting
- high hydroscopic
- belt
- hydroscopic resin
- stop belt
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- 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.)
- Expired - Lifetime
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
An occluding belt for plugging in grouting of a water-enriched stratum comprises an outer elastic permeable envelope and an absorbent resin filled inside. The elastic permeable envelope is in a shape like a bar shaped cloth bag and has sutures along the length direction at intervals of 46cm so as to form independent capsules filled with the absorbent resin; the elastic permeable envelope adopts the spandex stretch fabric; and the absorbent resin is in a type of bentonite modified polyacrylate. The occluding belt is wound on the end of the grouting pipe in grouting and when it is inserted into grouting hole, it rapidly absorbs peripheral water and expands so as to seal the leakage hole. The occluding belt is easy to operate, has low cost and stable performance, and is adapted to plugging in grouting of the water-enriched stratum.
Description
Technical field
The utility model relates to and is used for the sealing device in slit between shutoff Grouting Pipe and the injected hole in a kind of building operations.
Background technology
The slip casting on Fu Shui stratum is one of technical barrier that runs in the underground engineering construction, because its water content is big, causes the stratum comparatively soft, and is dangerous higher.Often take the means of slip casting to come this type of stratum is reinforced in advance when underground engineering construction runs into this type of stratum at present.Because have bigger hole between Grouting Pipe and the injected hole, slurries pour out from this hole when causing slip casting, therefore must take measures to carry out sealing of hole.Existing injection hole sealing mainly contains following means:
1, on-the-spot anchoring agent or the cement mortar sealing of hole of using.This method is with low cost, uses at most in actual engineering.But also having certain problem, at first is complex operation, needs on-the-spot preparation and manual smearing; Next is that plugging effect is relatively poor, and especially on the Fu Shui stratum, the anchoring agent is run off and seriously caused still having big slit to exist after the coating.
2, rubber bag tank formula hole packer, this hole packer adopt the means of inflating in the rubber bag tank to carry out sealing of hole, and plugging effect is better.Can be repeatedly used in theory, but in fact after slip casting finishes this air bag can not take out immediately, otherwise can cause the loss of slurries.And this air bag breaks easily, uses at the scene to cause the slip casting failure extremely easily.
3, extrusion expansion formula hole packer, this hole packer are taked the method sealing of hole with the rubber extruded expansion, and price is more expensive, and generally just is applicable to the lithostratigraphy.
4, other mechanical type hole packers, this type of hole packer design is comparatively advanced, but cost is often higher, therefore uses less at the construction field (site).
The utility model content
The utility model provides a kind of Fu Shui stratum injection hole sealing grout stop belt, solve that existing injection hole sealing measure plugging effect is bad, cost is high, is not suitable for the technical problem on Fu Shui stratum.
The technical scheme that its technical problem that solves the utility model adopts is:
This Fu Shui stratum injection hole sealing grout stop belt comprises outside permeable big envelope of elastic force and the inner high hydroscopic resin of loading.
The permeable big envelope of described elastic force is a strip cloth bag shape, to be provided with seam zygonema every 4-6cm, forms the independently capsule that is filled with high hydroscopic resin one by one along long.
The permeable big envelope of described elastic force can adopt elastic polyurethane fiber cloth or terylene elastic force cloth.
Described high hydroscopic resin can adopt bentonite modified polyacrylate type high water absorption resin, polyurethanes high hydroscopic resin, polyvinyl alcohol high hydroscopic resin or cellulose family high hydroscopic resin.
Optimized technical scheme: high hydroscopic resin adopts bentonite modified polyacrylate type high water absorption resin.
The beneficial effects of the utility model are as follows:
Outer envelope of the present utility model adopts permeable elastical cloth, an amount of super absorbent resin of inner filling.Super absorbent resin can adopt bentonite modified polyacrylate high polymer.This resinoid water retention property is good, in case when imbibition becomes hydrogel, even pressurization also is difficult to moisture from coming out, and have certain intensity, therefore can bear certain grouting pressure in that imbibition is later.It is an independently capsule that this grout stop belt is made every 4-6cm, guarantees the even distribution of high hydroscopic resin.
This grout stop belt can twine in the Grouting Pipe end when slip casting, and when treating that Grouting Pipe is inserted injected hole, this grout stop belt can absorb the water of periphery rapidly and expand, thereby the spillage hole is all shut.The constructing operation of this grout stop belt is easy, and cost is low, and stable performance is applicable to Fu Shui stratum injection hole sealing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a cross section structure schematic diagram of the present utility model.
Reference numeral: the permeable big envelope of 1-elastic force, 2-water-absorbing resin, 3-suture.
The specific embodiment
Embodiment is referring to Fig. 1, Fig. 2, shown in, this Fu Shui stratum injection hole sealing grout stop belt comprises permeable big envelope 1 of outside elastic force and the inner high hydroscopic resin of loading 2.The permeable big envelope of elastic force is a strip cloth bag shape, and is wide * the thick 10 * 0.5cm that is about, and to be provided with seam zygonema 3 every 5cm, forms the independently capsule that is filled with high hydroscopic resin one by one along long.
The permeable big envelope of described elastic force adopts elastic polyurethane fiber cloth, and high hydroscopic resin adopts bentonite modified polyacrylate type high water absorption resin, rapidly imbibition and have certain intensity.
The course of work of the present utility model:
When using at the scene grout stop belt is wound on the Grouting Pipe, and determines to twine thickness and length, again Grouting Pipe is inserted injected hole according to the size in slit.This grout stop belt just begins imbibition after the insertion, generally the slit can blocked up about 3 minutes.Just can begin slip casting this moment, and grouting with small pipe is adopted on general Fu Shui stratum, and grouting pressure 0.4-1MPa, and this grout stop belt is in the not compression of this pressure lower volume can support and guarantee that slip casting finishes.
For the Grouting Pipe diameter is 40mm, and the ductule of the long 3-5m of steel pipe can directly be wound in the grout stop belt that processes on the Grouting Pipe, determines to twine the number of turns according to the space between Grouting Pipe and the injected hole during winding, after winding finishes grout stop belt is cut off.Then Grouting Pipe is inserted in the injected hole, treated that it slowly absorbs water, just can reach the sealing of hole effect after general 3 minutes, and beginning slip casting.
Claims (5)
1. a Fu Shui stratum injection hole sealing grout stop belt is characterized in that: comprise outside permeable big envelope of elastic force (1) and the inner high hydroscopic resin of loading (2).
2. Fu Shui according to claim 1 stratum injection hole sealing grout stop belt, it is characterized in that: the permeable big envelope of described elastic force is a strip cloth bag shape, to be provided with seam zygonema (3) every 4-6cm, form the independently capsule that is filled with high hydroscopic resin one by one along long.
3. Fu Shui according to claim 1 and 2 stratum injection hole sealing grout stop belt is characterized in that: the permeable big envelope of described elastic force adopts elastic polyurethane fiber cloth or terylene elastic force cloth.
4. Fu Shui according to claim 1 and 2 stratum injection hole sealing grout stop belt is characterized in that: described high hydroscopic resin adopts bentonite modified polyacrylate type high water absorption resin, polyurethanes high hydroscopic resin, polyvinyl alcohol high hydroscopic resin or cellulose family high hydroscopic resin.
5. Fu Shui according to claim 4 stratum injection hole sealing grout stop belt, it is characterized in that: described high hydroscopic resin adopts bentonite modified polyacrylate type high water absorption resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203163490U CN201567564U (en) | 2009-12-01 | 2009-12-01 | Occluding belt for plugging in grouting of water-enriched stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203163490U CN201567564U (en) | 2009-12-01 | 2009-12-01 | Occluding belt for plugging in grouting of water-enriched stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201567564U true CN201567564U (en) | 2010-09-01 |
Family
ID=42659848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203163490U Expired - Lifetime CN201567564U (en) | 2009-12-01 | 2009-12-01 | Occluding belt for plugging in grouting of water-enriched stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201567564U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389545A (en) * | 2014-10-31 | 2015-03-04 | 河南神华能源工程有限公司 | Hole sealing plug device for drilled holes in water-bearing coal seam and use method of hole sealing plug device |
| CN110778285A (en) * | 2019-11-25 | 2020-02-11 | 天地科技股份有限公司 | Hole sealing structure, hole sealing assembly and hole sealing method |
-
2009
- 2009-12-01 CN CN2009203163490U patent/CN201567564U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389545A (en) * | 2014-10-31 | 2015-03-04 | 河南神华能源工程有限公司 | Hole sealing plug device for drilled holes in water-bearing coal seam and use method of hole sealing plug device |
| CN110778285A (en) * | 2019-11-25 | 2020-02-11 | 天地科技股份有限公司 | Hole sealing structure, hole sealing assembly and hole sealing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |
|
| CX01 | Expiry of patent term |