CN110219685A - A kind of roof reinforcement grouting equipment and grouting method - Google Patents
A kind of roof reinforcement grouting equipment and grouting method Download PDFInfo
- Publication number
- CN110219685A CN110219685A CN201910607698.6A CN201910607698A CN110219685A CN 110219685 A CN110219685 A CN 110219685A CN 201910607698 A CN201910607698 A CN 201910607698A CN 110219685 A CN110219685 A CN 110219685A
- Authority
- CN
- China
- Prior art keywords
- air bag
- outer tube
- slip casting
- slurries
- inner sleeve
- Prior art date
- 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.)
- Granted
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Classifications
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
Abstract
The invention discloses a kind of roof reinforcement grouting equipment and grouting methods.Grouting equipment includes funnel-form slip casting cutter head, inner sleeve and outer tube, and inner sleeve, outer tube are top end opening, and inner sleeve is located at the inside of outer tube, and inner sleeve top is connect with outer tube top by circular ring shape Interal fixation；The inner wall of inner sleeve is bonded with interior air bag, and the two sides of interior air bag are provided with mounting hole；Funnel-form slip casting cutter head includes bucket body bottom and Grouting Pipe, and bucket body bottom adhesive is on interior air bag inner wall, and Grouting Pipe is pierced by out of mounting hole and extends on the outside of interior gasbag ektexine, and position corresponding with mounting hole is equipped with the through-hole passed through for Grouting Pipe on outer tube；The outboard bonds of the outer sleeve upper have outer air bag；The bottom of outer tube offers small ventilating holes, ventilative block cloth is covered on small ventilating holes, and ventilative block cloth is pasted on outer sleeve bottom outer wall.The configuration of the present invention is simple is easy to operate, and no longer needs to beat common anchor rod aperture again after slip casting, reduces project amount.
Description
Technical field
The invention belongs to mine timbering technical fields, and in particular to a kind of roof reinforcement grouting equipment and slip casting side
Method.
Background technique
The failure mode of anchor pole is mainly to encounter hole in Bracing Process in anchoring procedure in the engineer application of suspension roof support
The coal ash that adheres on wall or sliding unstability whens being crushed soft country rock etc. between anchor pole and hole wall, slide unstability to solve anchor pole
Problem, the prior art mainly adopts bolthole reaming modes to solve problems, in 109779662 A of prior art CN
A kind of method of cherry coal rock gangway road bolthole bottom reaming filling and support is disclosed, in the bottom reaming of anchor hole, is then carried out
Slip casting is beaten common anchor rod aperture after slip casting again again and is anchored, and is equivalent to change after reaming slip casting solidification and enclose around bolthole
Lithology matter increases anchor rod anchored performance.But its needs is beaten common anchor rod aperture after slip casting again again and is anchored, and increases
Project amount and operating cost, and increase the usage amount of slurries.
Summary of the invention
The object of the present invention is to provide a kind of structures roof reinforcement grouting equipment and grouting method simple, easy to use.
To achieve the above object, the present invention provides a kind of roof reinforcement grouting equipment, including it is funnel-form slip casting cutter head, interior
Casing and outer tube, inner sleeve, outer tube are top end opening, and inner sleeve is located at the inside of outer tube, and inner sleeve top with
Outer tube top is connected by circular ring shape Interal fixation；The inner wall of inner sleeve is bonded with interior air bag, and the two sides of interior air bag are provided with
Mounting hole；Funnel-form slip casting cutter head includes bucket body bottom and Grouting Pipe, bucket body bottom adhesive on interior air bag inner wall, Grouting Pipe from
It is pierced by and is extended on the outside of interior gasbag ektexine in mounting hole, position corresponding with mounting hole is equipped with for Grouting Pipe on outer tube
The through-hole passed through；The outboard bonds of the outer sleeve upper have outer air bag；The bottom of outer tube offers small ventilating holes, breathes freely small
Ventilative block cloth is covered on hole, and ventilative block cloth is pasted on outer sleeve bottom outer wall.
Preferably, the interior air bag is cylindrical shape；The outer air bag is annular shape.
Preferably, venthole is offered on the circular ring shape steel plate.
Preferably, interior air bag connect by interior air bag ventilation pipe with air valve, outer air bag pass through outer air bag ventilation pipe and
Air valve connection.
The setting of interior air bag in the present invention, so that the top of funnel-form slip casting cutter head can be made to contract after interior air bag charges gas
It returns in outer tube；After interior air bag is deflated, in slip casting, the top of funnel-form slip casting cutter head can be made again under slurry pressure
It reaches outside outer tube.
Preferably, the bottom of the outer tube is made of wavy sheet, and small ventilating holes setting is concaved towards in wavy sheet
The position on outer tube top.
When needing to be improved roof rock mass performance, drilling anchor solid hole is first carried out inside country rock, then uses existing method pair
Anchor hole bottom hole carries out expanding treatment, then carries out slip casting using roof reinforcement grouting equipment of the invention.
A kind of method of roof reinforcement slip casting, comprising the following steps:
(1) bottom hole reaming is carried out to the anchor hole being drilled to progress drilling anchor solid hole inside country rock in the position for needing roof reinforcement
Processing, the anchor hole after obtaining bottom hole reaming；
(2) it is inwardly inflated in air bag, bounces back to funnel-form slip casting cutter head in outer tube, grouting equipment is deep into specified region
When, gas injection in outside air bag guarantees whole equipment stability during the work time and guarantees that slurries will not flow out, while will in
Gas discharge in air bag；
(3) high pressure slurries are injected into inner sleeve by high pressure pumping station, makes to pass through peace at the top of slip casting cutter head by the pressure of slurries
It fills hole to stretch out outside outer tube, slurries are injected uniformly by slip casting cutter head to fill area, and high pressure slurries guarantee slip casting cutter head
Top is completely overhanging, and the gas in fill area is discharged by the small ventilating holes of outer sleeve bottom, guarantees that slurries are fully populated with entirely
Filling area；
(4) after entire filling area is full of by slurries, since (it is suitable that ventilative block cloth can need to select ventilative block cloth according to scene
Material, it is possible to use multilayer) prevent slurries from passing through, cause filling pressure to surge, filling operation can be terminated at this time；
(5) after the completion of filling, recycle slip casting cutter head to the backward interior air bag gas injection of slurries initial set, the intracapsular gas of discharge outer gas,
Whole equipment is detached into filling area, Cementer is completed.
The beneficial effect comprise that: using roof reinforcement grouting equipment of the invention slurries can be injected uniformly to
Fill area, structure simple operations are convenient；And it no longer needs to beat common anchor rod aperture again after slip casting, reduces project amount, slurry
The usage amount and operating cost of liquid.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in roof reinforcement grouting equipment of the invention after interior air bag inflation；
Fig. 2 is the structural schematic diagram in roof reinforcement grouting equipment of the invention after interior air bag deflation；
The portion A-A that Fig. 3 is Fig. 1 regards schematic diagram；
The portion B-B that Fig. 4 is Fig. 2 regards schematic diagram.
Specific embodiment
The present invention is further explained in the light of specific embodiments, and but the scope of the present invention is not limited thereto.
Embodiment 1
As shown in Figs 1-4, a kind of roof reinforcement grouting equipment, including funnel-form slip casting cutter head 5, inner sleeve 8 and outer tube 10,
Inner sleeve 8, outer tube 10 are top end opening, and inner sleeve 8 is located at the inside of outer tube 10, and 8 top of inner sleeve and outer tube
10 tops are welded and fixed by circular ring shape steel plate 11；The inner wall of inner sleeve 8 is bonded with interior air bag 6, and the two sides of interior air bag 6 are respectively provided with
There is mounting hole 13；5, funnel-form slip casting knife include bucket body bottom 501 and Grouting Pipe 502, and bucket body bottom 501 is bonded in interior air bag 6
On inner wall, Grouting Pipe 502 is pierced by out of mounting hole 13 and extends on the outside of interior gasbag ektexine, on outer tube 10 with 13 phase of mounting hole
Corresponding position is equipped with the through-hole 12 passed through for Grouting Pipe 502；The outboard bonds of 10 upper end of outer tube have outer air bag 4；
The bottom of outer tube 10 offers several small ventilating holes 7, and the bottom of outer tube 10 is made of wavy sheet, small ventilating holes 7
The position that glass shape wave plate concaves towards outer tube top is set.It is covered on small ventilating holes 7 in ventilative block cloth 14(Fig. 1 and does not draw
Out), and ventilative block cloth 14 is pasted on outer sleeve bottom outer wall.
The interior air bag 6 is cylindrical shape；The outer air bag 4 is annular shape.Ventilation is offered on the circular ring shape steel plate 11
Hole 9.Interior air bag 6 is connect by interior air bag ventilation pipe 3 with air valve 1, and outer air bag 4 is connected by outer air bag ventilation pipe 2 with air valve 1
It connects.
A kind of method of roof reinforcement slip casting, comprising the following steps:
(1) bottom hole reaming is carried out to the anchor hole being drilled to progress drilling anchor solid hole inside country rock in the position for needing roof reinforcement
Processing, the anchor hole after obtaining bottom hole reaming；
(2) it is inwardly inflated in air bag, bounces back to slip casting cutter head in outer tube, when grouting equipment is deep into specified region, to
Gas injection in outer air bag guarantees whole equipment stability during the work time and guarantees that slurries will not flow out, while by interior air bag
Interior gas discharge；
(3) high pressure slurries are injected into inner sleeve by high pressure pumping station, makes to pass through peace at the top of slip casting cutter head by the pressure of slurries
It fills hole to stretch out outside outer tube, slurries are injected uniformly by slip casting cutter head to fill area, and high pressure slurries guarantee at the top of cutter head
Completely overhanging, the gas in fill area is discharged by the small ventilating holes of outer sleeve bottom, guarantees that slurries are fully populated with entire filling
Area；
(4) after entire filling area is full of by slurries, since block cloth prevents slurries from passing through, cause filling pressure to surge, be at this time
It can terminate filling operation；
(5) after the completion of filling, stopping 3 to 5 minutes recycles slip casting cutter head to the backward interior air bag gas injection of slurries initial set, and outer gas is discharged
Whole equipment is detached filling area by intracapsular gas, and Cementer is completed.Block cloth failure is completed in slip casting, only need to be by the yarn of adhesion
Cloth removes replacement.
Slurries can be injected uniformly using roof reinforcement grouting equipment of the invention to fill area, structure simple operations side
Just；And it no longer needs to beat common anchor rod aperture again after slip casting, reduces project amount and operating cost.It is subsequent to be carried out using anchor pole
Anchoring can be effectively improved the intensity, stability and other mechanical properties of roof rock mass, improve the work under high-risk top plate operating environment
Make condition.
The above, only best mode for carrying out the invention, anyone skilled in the art is in the present invention
In the technical scope of disclosure, the simple change or equivalence replacement for the technical solution that can be become apparent to each fall within of the invention
In protection scope.
Claims (6)
1. a kind of roof reinforcement grouting equipment, it is characterised in that: including funnel-form slip casting cutter head, inner sleeve and outer tube, inner sleeve
Pipe, outer tube are top end opening, and inner sleeve is located at the inside of outer tube, and inner sleeve top and outer tube top pass through annulus
The connection of shape Interal fixation；The inner wall of inner sleeve is bonded with interior air bag, and the two sides of interior air bag are provided with mounting hole；Funnel-form slip casting knife
Head includes bucket body bottom and Grouting Pipe, and on interior air bag inner wall, Grouting Pipe is pierced by and extends out of mounting hole bucket body bottom adhesive
To on the outside of interior gasbag ektexine, position corresponding with mounting hole is equipped with the through-hole passed through for Grouting Pipe on outer tube；It is described outer
The outboard bonds of sleeve upper end have outer air bag；The bottom of outer tube offers small ventilating holes, and ventilative gear is covered on small ventilating holes
Cloth, and ventilative block cloth is pasted on outer sleeve bottom outer wall.
2. roof reinforcement grouting equipment as described in claim 1, it is characterised in that: the interior air bag is cylindrical shape；The outer gas
Capsule is annular shape.
3. roof reinforcement grouting equipment as described in claim 1, it is characterised in that: offer ventilation on the circular ring shape steel plate
Hole.
4. roof reinforcement grouting equipment as described in claim 1, it is characterised in that: interior air bag passes through interior air bag ventilation pipe and gas
Valve connection, outer air bag are connect by outer air bag ventilation pipe with air valve.
5. roof reinforcement grouting equipment as described in claim 1, it is characterised in that: the bottom of the outer tube is by wavy sheet
It is made, the position that wavy sheet concaves towards outer tube top is arranged in small ventilating holes.
6. the method for carrying out roof reinforcement slip casting using any roof reinforcement grouting equipment of claim 1-5, it is characterised in that packet
Include following steps:
(1) bottom hole reaming is carried out to the anchor hole being drilled to progress drilling anchor solid hole inside country rock in the position for needing roof reinforcement
Processing, the anchor hole after obtaining bottom hole reaming；
(2) it is inwardly inflated in air bag, bounces back to slip casting cutter head in outer tube, when grouting equipment is deep into specified region, to
Gas injection in outer air bag guarantees whole equipment stability during the work time and guarantees that slurries will not flow out, while by interior air bag
Interior gas discharge；
(3) high pressure slurries are injected to inner sleeve visitor's pipe by high pressure pumping station, makes to pass through peace at the top of slip casting cutter head by the pressure of slurries
It fills hole to stretch out outside outer tube, slurries are injected uniformly by slip casting cutter head to fill area, and high pressure slurries guarantee at the top of cutter head
Completely overhanging, the gas in fill area is discharged by the small ventilating holes of outer sleeve bottom, guarantees that slurries are fully populated with entire filling
Area；
(4) after entire filling area is full of by slurries, since block cloth prevents slurries from passing through, cause filling pressure to surge, be at this time
It can terminate filling operation；
(5) after the completion of filling, recycle slip casting cutter head to the backward interior air bag gas injection of slurries initial set, the intracapsular gas of discharge outer gas,
Whole equipment is detached into filling area, Cementer is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910607698.6A CN110219685B (en) | 2019-07-08 | 2019-07-08 | Roof reinforcing grouting equipment and grouting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910607698.6A CN110219685B (en) | 2019-07-08 | 2019-07-08 | Roof reinforcing grouting equipment and grouting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110219685A true CN110219685A (en) | 2019-09-10 |
| CN110219685B CN110219685B (en) | 2020-09-18 |
Family
ID=67812802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910607698.6A Active CN110219685B (en) | 2019-07-08 | 2019-07-08 | Roof reinforcing grouting equipment and grouting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110219685B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726567A (en) * | 2020-12-29 | 2021-04-30 | 薛道岳 | Reinforcing apparatus that supplementary slip casting of construction soft soil foundation and reaming can |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006097272A (en) * | 2004-09-28 | 2006-04-13 | Ohbayashi Corp | Method of removing redundant portion of pipe bodies in natural ground reinforcing works |
| CN103321654A (en) * | 2013-07-04 | 2013-09-25 | 中国矿业大学 | Method for managing roof collapse of coal mine roadway by aid of flexible air bags |
| CN104912071A (en) * | 2015-06-23 | 2015-09-16 | 新乡市嘉汇科技有限公司 | Integrated double-bag enlarged anchor cable |
| CN105937407A (en) * | 2016-06-22 | 2016-09-14 | 西安科技大学 | Gob-side entry retaining concrete filled wall annular air bag construction method |
| CN106194250A (en) * | 2016-06-22 | 2016-12-07 | 西安科技大学 | A kind of gob-side entry retaining concrete filling wall annular air-pocket template |
-
2019
- 2019-07-08 CN CN201910607698.6A patent/CN110219685B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006097272A (en) * | 2004-09-28 | 2006-04-13 | Ohbayashi Corp | Method of removing redundant portion of pipe bodies in natural ground reinforcing works |
| CN103321654A (en) * | 2013-07-04 | 2013-09-25 | 中国矿业大学 | Method for managing roof collapse of coal mine roadway by aid of flexible air bags |
| CN104912071A (en) * | 2015-06-23 | 2015-09-16 | 新乡市嘉汇科技有限公司 | Integrated double-bag enlarged anchor cable |
| CN105937407A (en) * | 2016-06-22 | 2016-09-14 | 西安科技大学 | Gob-side entry retaining concrete filled wall annular air bag construction method |
| CN106194250A (en) * | 2016-06-22 | 2016-12-07 | 西安科技大学 | A kind of gob-side entry retaining concrete filling wall annular air-pocket template |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726567A (en) * | 2020-12-29 | 2021-04-30 | 薛道岳 | Reinforcing apparatus that supplementary slip casting of construction soft soil foundation and reaming can |
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| Publication number | Publication date |
|---|---|
| CN110219685B (en) | 2020-09-18 |
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