CN110130852A - Wear formula list pouch secondary grouting hole sealing device and method for sealing - Google Patents
Wear formula list pouch secondary grouting hole sealing device and method for sealing Download PDFInfo
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- CN110130852A CN110130852A CN201910413131.5A CN201910413131A CN110130852A CN 110130852 A CN110130852 A CN 110130852A CN 201910413131 A CN201910413131 A CN 201910413131A CN 110130852 A CN110130852 A CN 110130852A
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- jag
- slip casting
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pipe Accessories (AREA)
Abstract
The present invention relates to single pouches to block integral type hole sealing device, including the double-deck pouch, Grouting Pipe, caulking tube, hole sealing tube, slip casting jag, leak stopping jag, caulking tube exports fixed cloth set, leak stopping pipe end fixes cloth set, slip casting jag cloth set, leak stopping jag cloth set, check valve and plug, the double-deck pouch is coated on outside hole sealing tube, the double-deck pouch outer surface sets two slip casting jags and a leak stopping jag, an injected hole is at least arranged in the double-deck pouch outer surface of slip casting jag two sides, Grouting Pipe and hole sealing tube parallelly distribute on, and Grouting Pipe is intracavitary embedded in slip casting and is connected to by least four check valves with slip casting chamber, caulking tube tube body is embedded in the double-deck pouch, and front end face is located at the double-deck pouch outer surface and connect with plug.One aspect of the present invention separately effectively eliminates slurry and generation stomata in slurry block is caused to happen because of solidification shrinkage while improving slurry coagulation efficacy, on the other hand can carry out secondary plugging operation to drilling according to the needs of hole pumping and mining operation.
Description
Technical field
The present invention relates to wear formula list in a kind of coal mine gas extraction field more particularly to this coal bed gas extraction
Pouch secondary grouting hole sealing device and method for sealing.
Background technique
The high quality seal of coal bed drilling is the key technology of gas drainage, directly affects the dense of down-hole coal bed gas drainage
Degree.Patent CN201610215651.1 discloses a kind of middle part and seeps paddle list pouch injection hole sealing device and its method for sealing, should
Device is weaker to the slip casting ability of the wall of a borehole, can only realize the once grouting of drilling.Patent CN200710054384.5 is disclosed
Although a kind of bag type paste injection hole sealing device and its method for sealing, the hole sealing device achieve certain application effect, but
It can only realize the once grouting of drilling.Patent CN201721649952.6 discloses a kind of bag type paste injection hole sealing device, the sealing of hole
There are two the double-deck pouch, Grouting Pipe, steel loop compositions for device, but since pouch water penetration is stronger, during slip casting, material is secreted
It a large amount of water and is stored between two pouches out, which increase the ratio of muds of slurries between two pouches, material property is seriously reduced,
So that material solidification after-contraction, causes drilling gas leakage.Patent CN201721698524.8 and patent CN201711294128.3 points
Do not disclose two pouches, three pouches wear formula plugging device, the function of bored grouting and leak stopping may be implemented, but above two
Hole packer water penetration is stronger, is easy a large amount of water of accumulation between two pouches during slip casting, causes slip casting section material water grey
Than unbalance, and then reduce sealing of hole effect.
In order to solve the above technical problems, proposing one kind wears formula list pouch secondary grouting hole sealing device and method for sealing,
The device carries out sealing of hole using single pouch, while can carry out slip casting to the wall of a borehole by injected hole during once grouting,
Pressure maintaining is formed for secondary grouting, and condition is provided；In addition, the device can carry out secondary leak stopping, further sealing drilling to drilling.
Summary of the invention
In order to solve the deficiency in the prior art, present invention offer wears formula list pouch secondary grouting hole sealing device and sealing of hole
Method and experimental method.
In order to realize effect above-mentioned, propose wear formula list pouch secondary grouting hole sealing device and method for sealing and
Experimental method comprising following steps:
Single pouch blocks integral type hole sealing device, including the double-deck pouch, Grouting Pipe, caulking tube, hole sealing tube, slip casting jag, leak stopping
Jag, caulking tube export the fixed cloth set of fixed cloth set, leak stopping pipe end, slip casting jag cloth set, leak stopping jag cloth set, check valve and
Plug, wherein the bilayer vesicles bag is airtight cavity structure, side wall includes the inner-layer cloth and outer cloth of permeable impermeable slurry, and institute
Stating is slip casting chamber between inner-layer cloth and outer cloth, and the bilayer pouch is coated on outside hole sealing tube and along sealing of hole tube axis direction point
Cloth, the bilayer pouch outer surface set two slip casting jags and a leak stopping jag, and the leak stopping jag is located at adjacent two notes
It starches between jag, the spacing of leak stopping jag and slip casting jag is greater than 100mm, and the corresponding double-deck pouch outer surface of slip casting jag is respectively set
One slip casting slot being coaxially distributed with the double-deck pouch, the corresponding double-deck pouch outer surface of leak stopping jag set one it is same with bilayer pouch
An injected hole is at least arranged in the leak stopping slot of axis distribution, the double-deck pouch outer surface of slip casting jag two sides, and the slip casting is pricked
Rope, leak stopping jag pass through slip casting jag cloth set, leak stopping jag cloth set and the double-deck pouch appearance respectively and are connected with each other, and slip casting jag
Cloth set, leak stopping jag cloth set are respectively coated by outside slip casting jag, leak stopping jag, the Grouting Pipe and hole sealing tube parallelly distribute on, and
Grouting Pipe is intracavitary embedded in slip casting and is connected to by least four check valves with slip casting chamber, and the check valve is respectively arranged to be infused in two
It starches in the Grouting Pipe between jag and double-deck pouch both ends and in the Grouting Pipe between slip casting jag and leak stopping jag, the note
Slurry pipe rear end is located at outside the double-deck pouch and connect with plug, and the caulking tube tube body is embedded in the double-deck pouch and parallel with Grouting Pipe
Distribution, and caulking tube front end face is located at the double-deck pouch outer surface and connect with plug, before the corresponding double-deck pouch of the caulking tube
End face sets caulking tube import, and the corresponding double-deck pouch upper surface of caulking tube sets caulking tube outlet, and caulking tube passes through caulking tube respectively
Import and caulking tube outlet are connect with the double-deck pouch lateral wall, and the caulking tube is located at the pipeline section point of the double-deck pouch outer surface part
The fixed cloth set of fixed cloth set, leak stopping pipe end is not exported by caulking tube and the double-deck pouch outer surface is connected with each other, and caulking tube
It sequentially passes through caulking tube and exports fixed cloth set and the fixed cloth set of leak stopping pipe end, and pricked on the corresponding caulking tube of the leak stopping jag
Several pulp eyes, and at least one layer of adhesive tape is wrapped up on pulp eye, the caulking tube exports fixed cloth set sewing in the double-deck pouch
Outer surface, cover caulking tube outlet, and there are free end, the fixed cloth set sewing of the leak stopping pipe end is in outside the double-deck pouch
Surface, and it is located at the right side of leak stopping jag, axis and the second double-deck pouch axis parallelly distribute on.
Further, the slip casting jag cloth set, leak stopping jag cloth set are sewed in the double-deck pouch outer surface.
Further, the caulking tube import and caulking tube outlet diameter are respectively less than leak stopping pipe outside diameter, and caulking tube import
Left side is exported positioned at caulking tube, caulking tube import is kept at a distance from 30-50 centimetres with caulking tube outlet.
Further, in the inner-layer cloth of the double-deck pouch, uniformly distributed several infiltrations starch hole, and each slurry hole of seeping is around bilayer vesicles bag axis
Line is uniformly distributed.
Further, the slip casting jag passes through corresponding slip casting jag cloth set, and is wound on the double-deck pouch outer surface, shape
At the closed hoop structure being coaxially distributed with the double-deck pouch, the leak stopping jag passes through leak stopping jag cloth set, and is wound on bilayer vesicles
Bag outer surface forms the closed hoop structure being coaxially distributed with the double-deck pouch.
Further, the spacing between the injected hole and slip casting jag is less than slip casting slot and leak stopping groove depth, and institute
It states slip casting slot and leak stopping groove depth is uniformly greater than 50 millimeters.
Further, the slip casting bore dia is 0.3-1.2 mm, and the total pulp flow of each injected hole is grouting pump
Into slurry flow 1% -15%.
Single pouch blocks the method for sealing of integral type hole sealing device, comprising the following steps:
S1, be inserted into hole sealing device, by single pouch closure integral type hole sealing device be set on hole sealing tube, by hole sealing device both ends with
Hole sealing tube is fixed, and slip casting jag and leak stopping jag are tied up, and connects external Grouting Pipe and caulking tube, the subsequent hole sealing tube of grafting, and incite somebody to action
The hole sealing device insertion drilling designated depth connected；
S2, hole-sealing grouting check hole-sealing grouting pump, configure and stirred particulate slurry, Grouting Pipe is connect with grouting pump, implement
Hole-sealing grouting has particulate slurry to be fed directly in the double-deck pouch by check valve, and the double-deck pouch is swollen under slurry pressure effect
It is swollen, slip casting slot and leak stopping slot are formed by the effect of contraction bilayer pouch outer surface of slip casting jag and leak stopping jag；Continue to note
It is injected with particulate slurry in slurry pipe, makes have particulate slurry to flow out into from the injected hole of the double-deck pouch into slip casting slot, into
And flowed under grouting pressure effect in the gap between the wall of a borehole and the double-deck pouch, risen to when grouting pressure as defined in pressure it
Afterwards, stop slip casting, clean grouting pump in time；
S3, leak stopping slip casting after the completion of S2 step, at least after S2 is completed 24 hours, carry out S3 step, and at least shift to an earlier date 2 small
When close drilling negative pressure guarantee hole in be zero negative pressure state；It checks leak stopping grouting pump, no particulate slurry is configured and stir, by leak stopping
Pipe is connect with leak stopping grouting pump, is implemented leak stopping slip casting, after no particulate slurry is injected into drilling, is formed by leak stopping along S2 step
In slot flowing and the crack of injection hole country rock, after grouting pressure rises to authorized pressure, stop slip casting, pressure maintaining 5 ~ 10 minutes is simultaneously
Cleaning grouting pump in time after grouting operation finishes, is bored when opening after reaching setting time without particulate slurry in borehole fissure
Hole negative pressure carries out gas drainage again.
The more traditional injection hole sealing structure of one aspect of the present invention, effectively simplifies injection hole sealing device structure, is improving
While slurry coagulation efficacy, separately effectively eliminates slurry and generation stomata in slurry block is caused to happen because of solidification shrinkage,
To improve the stability and structural strength of structure after slip casting slurry solidifies, and eliminates gas leakage caused by stomata and happens,
Also block work operations efficiency and while quality improving slip casting simultaneously, separately effectively reduce slip casting plugging operations difficulty and
On the other hand cost can carry out secondary plugging operation to drilling, bore to effectively improve according to the needs of hole pumping and mining operation
Hole plugging effect stability, and greatly extend boring service life.
Detailed description of the invention
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments；
Fig. 1 is schematic structural view of the invention；
Fig. 2 is caulking tube pulp eye position partial structural diagram；
Fig. 3 is double-deck pouch cross section partial structural diagram；
Fig. 4 is application method flow diagram of the present invention.
Specific embodiment
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to construct, below with reference to specific
Embodiment, the present invention is further explained.
Single pouch as described in Fig. 1 and 2 blocks integral type hole sealing device, including the double-deck pouch 1, Grouting Pipe 2, hole sealing tube 4,
Caulking tube 3, slip casting jag 5, leak stopping jag 8, caulking tube export the fixed cloth set 15 of fixed cloth set 14, leak stopping pipe end, slip casting is pricked
Rope cloth set 17, leak stopping jag cloth set 9, check valve 6 and plug 7, wherein the double-deck pouch 1 is airtight cavity structure, side wall includes
The inner-layer cloth 101 and outer cloth 102 of permeable impermeable slurry, and be slip casting chamber 103, bilayer vesicles between inner-layer cloth 101 and outer cloth 102
Bag 1 is coated on outside hole sealing tube 4 and is distributed along 4 axis direction of hole sealing tube, and double-deck 1 outer surface of pouch sets two slip casting jags 5 and one
Leak stopping jag 8, between adjacent two slip casting jags 5, leak stopping jag 8 and the spacing of slip casting jag 5 are greater than leak stopping jag 8
100mm, 1 outer surface of the corresponding double-deck pouch of slip casting jag 5 respectively set the slip casting slot 10 being coaxially distributed with the double-deck pouch 1, block up
81 outer surface of the corresponding double-deck pouch of leakage jag sets the leak stopping slot 12 being coaxially distributed with the double-deck pouch 1,5 two sides of slip casting jag
1 outer surface of the double-deck pouch at least arrange an injected hole 11, slip casting jag 5, leak stopping jag 8 pass through slip casting jag cloth set respectively
17, leak stopping jag cloth set 9 and double-deck 1 appearance of pouch are connected with each other, and slip casting jag cloth set 17, leak stopping jag cloth set 9 are wrapped respectively
Overlay on slip casting jag 5, outside leak stopping jag 8.
In the present embodiment, the Grouting Pipe 2 and 4 parallelly distribute on of hole sealing tube, and Grouting Pipe 2 in slip casting chamber 103 and is led to
It crosses at least four check valves 6 to be connected to slip casting chamber 103, check valve 6 is respectively arranged in two slip casting jags 5 and double-deck 1 liang of the pouch
In Grouting Pipe 2 in Grouting Pipe 2 between end and between slip casting jag 5 and leak stopping jag 8,2 rear end of Grouting Pipe is located at bilayer
Pouch 1 is outer and connect with plug 7.
In the present embodiment, 3 tube body of caulking tube be embedded in the double-deck pouch 1 and with 2 parallelly distribute on of Grouting Pipe, and caulking tube
3 front end faces are located at double-deck 1 outer surface of pouch and connect with plug 7, and corresponding bilayer 1 front end face of pouch of the caulking tube 3 sets stifled
Fistulae import 301,1 upper surface of the corresponding double-deck pouch of caulking tube 3 set caulking tube outlet 302, and caulking tube 3 passes through caulking tube respectively
Import 301 and caulking tube outlet 302 are connect with double-deck 1 lateral wall of pouch, and the caulking tube 3 is located at 1 outer surface portion of the double-deck pouch
The pipeline section divided passes through caulking tube respectively and exports the fixed cloth set 15 of fixed cloth set 14, leak stopping pipe end and 1 outer surface phase of the double-deck pouch
It connects, and caulking tube 3 sequentially passes through caulking tube and exports fixed cloth set 14 and the fixed cloth set 15 of leak stopping pipe end, and leak stopping jag
Several pulp eyes 16 are pricked on 8 corresponding caulking tubes 3, and wrap up at least one layer of adhesive tape 13 on pulp eye 16, caulking tube outlet is solid
Determine the sewing of cloth set 14 and cover caulking tube outlet 301 in the outer surface of the double-deck pouch 1, and there are free end, leak stopping pipe end is solid
The sewing of cloth set 15 is determined in double-deck 1 outer surface of pouch, and is located at the right side of leak stopping jag 8, axis and the second 1 axis of the double-deck pouch
Parallelly distribute on.
Wherein, the slip casting jag cloth set 17, leak stopping jag cloth set 9 are sewed in double-deck 1 outer surface of pouch.
In addition, the caulking tube import 301 and caulking tube, which export 302 diameters, is respectively less than 3 outer diameter of caulking tube, and caulking tube into
Mouth 301 is located at 302 left side of caulking tube outlet, and caulking tube import 301 is at a distance from 302 30-50 centimetres of holding of caulking tube outlet.
Meanwhile in the inner-layer cloth 101 of the double-deck pouch 1, uniformly distributed several infiltrations starch hole 104, and each slurry hole 104 of seeping is around bilayer
1 axis of pouch is uniformly distributed.
It advanced optimizes, the slip casting jag 5 passes through corresponding slip casting jag cloth set 17, and is wound on the double-deck pouch 1
Outer surface forms the closed hoop structure being coaxially distributed with the double-deck pouch 1, and the leak stopping jag 8 passes through leak stopping jag cloth set 9,
And it is wound on double-deck 1 outer surface of pouch, form the closed hoop structure being coaxially distributed with the double-deck pouch 1.
It is noted that the spacing between the injected hole 11 and slip casting jag 5 is less than slip casting slot 10 and leak stopping slot 12
Depth, and the slip casting slot 10 and 12 depth of leak stopping slot are uniformly greater than 50 millimeters, 11 diameter of injected hole is 0.3-1.2
Mm, and the total pulp flow of each injected hole 11 is grouting pump into 1%-the 15% of slurry flow.
As shown in figure 3, single pouch blocks the method for sealing of integral type hole sealing device, comprising the following steps:
S1, be inserted into hole sealing device, by single pouch closure integral type hole sealing device be set on hole sealing tube, by hole sealing device both ends with
Hole sealing tube is fixed, and slip casting jag and leak stopping jag are tied up, and connects external Grouting Pipe and caulking tube, the subsequent hole sealing tube of grafting, and incite somebody to action
The hole sealing device insertion drilling designated depth connected；
S2, hole-sealing grouting check hole-sealing grouting pump, configure and stirred particulate slurry, Grouting Pipe is connect with grouting pump, implement
Hole-sealing grouting has particulate slurry to be fed directly in the double-deck pouch by check valve, and the double-deck pouch is swollen under slurry pressure effect
It is swollen, slip casting slot and leak stopping slot are formed by the effect of contraction bilayer pouch outer surface of slip casting jag and leak stopping jag；Continue to note
It is injected with particulate slurry in slurry pipe, makes have particulate slurry to flow out into from the injected hole of the double-deck pouch into slip casting slot, into
And flowed under grouting pressure effect in the gap between the wall of a borehole and the double-deck pouch, risen to when grouting pressure as defined in pressure it
Afterwards, stop slip casting, clean grouting pump in time；
S3, leak stopping slip casting after the completion of S2 step, at least after S2 is completed 24 hours, carry out S3 step, and at least shift to an earlier date 2 small
When close drilling negative pressure guarantee hole in be zero negative pressure state；It checks leak stopping grouting pump, no particulate slurry is configured and stir, by leak stopping
Pipe is connect with leak stopping grouting pump, is implemented leak stopping slip casting, after no particulate slurry is injected into drilling, is formed by leak stopping along S2 step
In slot flowing and the crack of injection hole country rock, after grouting pressure rises to authorized pressure, stop slip casting, pressure maintaining 5 ~ 10 minutes is simultaneously
Cleaning grouting pump in time after grouting operation finishes, is bored when opening after reaching setting time without particulate slurry in borehole fissure
Hole negative pressure carries out gas drainage again.
The more traditional injection hole sealing structure of one aspect of the present invention, effectively simplifies injection hole sealing device structure, is improving
While slurry coagulation efficacy, separately effectively eliminates slurry and generation stomata in slurry block is caused to happen because of solidification shrinkage,
To improve the stability and structural strength of structure after slip casting slurry solidifies, and eliminates gas leakage caused by stomata and happens,
Also block work operations efficiency and while quality improving slip casting simultaneously, separately effectively reduce slip casting plugging operations difficulty and
On the other hand cost can carry out secondary plugging operation to drilling, bore to effectively improve according to the needs of hole pumping and mining operation
Hole plugging effect stability, and greatly extend boring service life.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. single pouch blocks integral type hole sealing device, it is characterised in that: single pouch blocks integral type hole sealing device and includes
The double-deck pouch, Grouting Pipe, caulking tube, hole sealing tube, slip casting jag, leak stopping jag, caulking tube export fixed cloth set, leak stopping pipe end
Fixed cloth set, slip casting jag cloth set, leak stopping jag cloth set, check valve and plug, wherein the bilayer vesicles bag is airtight cavity knot
Structure, side wall include the inner-layer cloth and outer cloth of permeable impermeable slurry, and are slip casting chamber between the inner-layer cloth and outer cloth, described
The double-deck pouch is coated on outside hole sealing tube and is distributed along sealing of hole tube axis direction, and the bilayer pouch outer surface sets two slip casting jags
And a leak stopping jag, the leak stopping jag is between adjacent two slip casting jags, the spacing of leak stopping jag and slip casting jag
Greater than 100mm, the corresponding double-deck pouch outer surface of slip casting jag respectively sets the slip casting slot being coaxially distributed with the double-deck pouch, leak stopping
The corresponding double-deck pouch outer surface of jag sets the leak stopping slot being coaxially distributed with the double-deck pouch, pair of slip casting jag two sides
Layer pouch outer surface at least arranges that an injected hole, the slip casting jag, leak stopping jag pass through slip casting jag cloth set, leak stopping respectively
Jag cloth set and the double-deck pouch appearance are connected with each other, and slip casting jag cloth set, leak stopping jag cloth set be respectively coated by slip casting jag,
Outside leak stopping jag, the Grouting Pipe and hole sealing tube parallelly distribute on, and Grouting Pipe is intracavitary embedded in slip casting and unidirectional by least four
Valve is connected to slip casting chamber, the check valve be respectively arranged in the Grouting Pipe between two slip casting jags and the double-deck pouch both ends with
And in the Grouting Pipe between slip casting jag and leak stopping jag, the Grouting Pipe rear end is located at outside the double-deck pouch and connect with plug,
The caulking tube tube body be embedded in the double-deck pouch and with Grouting Pipe parallelly distribute on, and caulking tube front end face is located at the double-deck pouch appearance
Face is simultaneously connect with plug, and the corresponding double-deck pouch front end face of the caulking tube sets caulking tube import, the corresponding bilayer vesicles of caulking tube
Bag upper surface sets caulking tube outlet, and caulking tube passes through caulking tube import and caulking tube outlet respectively and connects with the double-deck pouch lateral wall
It connects, the pipeline section that the caulking tube is located at the double-deck pouch outer surface part exports fixed cloth set, caulking tube end by caulking tube respectively
Fixed cloth set and the double-deck pouch outer surface is held to be connected with each other, and caulking tube sequentially passes through caulking tube and exports fixed cloth set and caulking tube
Cloth set is fixed in end, and pricks several pulp eyes on the corresponding caulking tube of the leak stopping jag, and at least one is wrapped up on pulp eye
Layer adhesive tape, the caulking tube export fixed cloth set sewing in the outer surface of the double-deck pouch, cover caulking tube outlet, and there are from
By holding, the fixed cloth set sewing of the leak stopping pipe end is located at the right side of leak stopping jag in the double-deck pouch outer surface, axis with
The second double-deck pouch axis parallelly distribute on.
2. list pouch according to claim 1 blocks integral type hole sealing device, which is characterized in that the slip casting jag cloth
Set, leak stopping jag cloth set are sewed in the double-deck pouch outer surface.
3. it is according to claim 1 list pouch block integral type hole sealing device, which is characterized in that the caulking tube import and
Caulking tube outlet diameter is respectively less than leak stopping pipe outside diameter, and caulking tube import is located at caulking tube outlet left side, caulking tube import and stifled
Fistulae outlet keeps 30-50 centimetres of distance.
4. it is according to claim 1 list pouch block integral type hole sealing device, which is characterized in that it is described bilayer pouch it is interior
On layer cloth, uniformly distributed several infiltrations starch hole, and each infiltration slurry hole is uniformly distributed around bilayer vesicles bag axis.
5. list pouch according to claim 1 blocks integral type hole sealing device, which is characterized in that the slip casting jag is worn
Corresponding slip casting jag cloth set is crossed, and is wound on the double-deck pouch outer surface, forms the closed hoop knot being coaxially distributed with the double-deck pouch
Structure, the leak stopping jag passes through leak stopping jag cloth set, and is wound on the double-deck pouch outer surface, forms one and coaxially divides with the double-deck pouch
The closed hoop structure of cloth.
6. list pouch according to claim 1 blocks integral type hole sealing device, which is characterized in that the injected hole and note
It starches the spacing between jag and is less than slip casting slot and leak stopping groove depth, and the slip casting slot and leak stopping groove depth are uniformly greater than 50 millis
Rice.
7. list pouch according to claim 1 blocks integral type hole sealing device, which is characterized in that the slip casting bore dia
For 0.3-1.2 mm, and the total pulp flow of each injected hole is grouting pump into 1%-the 15% of slurry flow.
8. single pouch blocks the method for sealing of integral type hole sealing device according to claim 1, which is characterized in that the list
Pouch block integral type hole sealing device method for sealing the following steps are included:
S1, be inserted into hole sealing device, by single pouch closure integral type hole sealing device be set on hole sealing tube, by hole sealing device both ends with
Hole sealing tube is fixed, and slip casting jag and leak stopping jag are tied up, and connects external Grouting Pipe and caulking tube, the subsequent hole sealing tube of grafting, and incite somebody to action
The hole sealing device insertion drilling designated depth connected；
S2, hole-sealing grouting check hole-sealing grouting pump, configure and stirred particulate slurry, Grouting Pipe is connect with grouting pump, implement
Hole-sealing grouting has particulate slurry to be fed directly in the double-deck pouch by check valve, and the double-deck pouch is swollen under slurry pressure effect
It is swollen, slip casting slot and leak stopping slot are formed by the effect of contraction bilayer pouch outer surface of slip casting jag and leak stopping jag；Continue to note
It is injected with particulate slurry in slurry pipe, makes have particulate slurry to flow out into from the injected hole of the double-deck pouch into slip casting slot, into
And flowed under grouting pressure effect in the gap between the wall of a borehole and the double-deck pouch, risen to when grouting pressure as defined in pressure it
Afterwards, stop slip casting, clean grouting pump in time；
S3, leak stopping slip casting after the completion of S2 step, at least after S2 is completed 24 hours, carry out S3 step, and at least shift to an earlier date 2 small
When close drilling negative pressure guarantee hole in be zero negative pressure state；It checks leak stopping grouting pump, no particulate slurry is configured and stir, by leak stopping
Pipe is connect with leak stopping grouting pump, is implemented leak stopping slip casting, after no particulate slurry is injected into drilling, is formed by leak stopping along S2 step
In slot flowing and the crack of injection hole country rock, after grouting pressure rises to authorized pressure, stop slip casting, pressure maintaining 5 ~ 10 minutes is simultaneously
Cleaning grouting pump in time after grouting operation finishes, is bored when opening after reaching setting time without particulate slurry in borehole fissure
Hole negative pressure carries out gas drainage again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910413131.5A CN110130852B (en) | 2019-05-17 | 2019-05-17 | Sleeve-through type single-bag secondary grouting hole sealing device and hole sealing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910413131.5A CN110130852B (en) | 2019-05-17 | 2019-05-17 | Sleeve-through type single-bag secondary grouting hole sealing device and hole sealing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110130852A true CN110130852A (en) | 2019-08-16 |
| CN110130852B CN110130852B (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910413131.5A Expired - Fee Related CN110130852B (en) | 2019-05-17 | 2019-05-17 | Sleeve-through type single-bag secondary grouting hole sealing device and hole sealing method |
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| CN107989571A (en) * | 2017-12-08 | 2018-05-04 | 河南理工大学 | One kind wears three pouch plugging device of formula and its application method |
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2019
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