CN107747498B - A kind of mould bag filled type anchor bolt grouting device and method - Google Patents
A kind of mould bag filled type anchor bolt grouting device and method Download PDFInfo
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- CN107747498B CN107747498B CN201710796824.8A CN201710796824A CN107747498B CN 107747498 B CN107747498 B CN 107747498B CN 201710796824 A CN201710796824 A CN 201710796824A CN 107747498 B CN107747498 B CN 107747498B
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- hole
- steel pipe
- slip casting
- mould bag
- pressure
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- 238000000034 method Methods 0.000 title claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 96
- 239000010959 steel Substances 0.000 claims abstract description 96
- 238000007789 sealing Methods 0.000 claims abstract description 66
- 238000007569 slipcasting Methods 0.000 claims abstract description 66
- 239000002002 slurry Substances 0.000 claims abstract description 59
- 238000004873 anchoring Methods 0.000 claims abstract description 42
- 239000004568 cement Substances 0.000 claims abstract description 27
- 201000010041 presbyopia Diseases 0.000 claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 19
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011435 rock Substances 0.000 claims abstract description 15
- 230000003628 erosive effect Effects 0.000 claims abstract description 7
- 238000007711 solidification Methods 0.000 claims abstract description 5
- 230000008023 solidification Effects 0.000 claims abstract description 5
- 238000005553 drilling Methods 0.000 claims description 15
- 238000011010 flushing procedure Methods 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 6
- 238000011105 stabilization Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007596 consolidation process Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 239000011083 cement mortar Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/021—Grouting with inorganic components, e.g. cement
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/028—Devices or accesories for injecting a grouting liquid in a bore-hole
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of mould bag filled type anchor bolt grouting devices, comprising: aperture sealing of hole steel pipe (1), wall surface presbyopia (2), level pressure disabler A, aperture sealing of hole mould bag (4), slip casting steel pipe (5), level pressure disabler B, reinforcing rib (6), bottom hole anchoring steel pipe (7), bottom hole anchoring mould bag (8).The present invention anchors steel pipe three parts by the way that anchor pole is divided into aperture sealing of hole steel pipe, slip casting steel pipe, bottom hole, and mould bag, reinforcing rib, wall surface presbyopia is arranged, swell in conjunction with mould bag slip casting, unsuitable spillage the features such as, realize the low anchoring in hole and the filling in aperture closing；By wall surface presbyopia, what realization cement slurry, solidification were starched is efficiently injected into loose wall rock；To effectively increase grouting pressure, Fast Filling crushed zone loose wall rock avoids injection slurry by underground water erosion, ultimately forms firm mould bag filled type anchor pole, improve construction quality and technical level comprehensively.
Description
Technical field
The invention belongs to engineering reinforcement slurry injection technique field, in particular to a kind of mould bag filled type anchor bolt grouting device and side
Method.
Background technique
Currently, rich water crushed zone area tunnel surrounding intensity is lower, easily there is surrounding rock collapse, mud-rock flow, tunnel gushing water etc.
Security risk.Bolt grouting reinforce country rock be through frequently with one of reinforcement measure, but conventional anchor pole injection slurry is light water
Cement mortar is largely lost under the conditions of underground water erosion, anchoring quality is caused to decline to a great extent.Additionally due to the high stream of cement mortar
Dynamic property, grouting pressure are usually less than 0.4MPa, cannot effectively fill and densification crushed zone country rock.
Summary of the invention
The object of the present invention is to provide a kind of mould bag filled type anchor bolt grouting device and method, effectively improve grouting pressure,
Fast Filling crushed zone loose wall rock avoids injection slurry by underground water erosion, ultimately forms firm mould bag filled type anchor pole, entirely
Improve construction quality and technical level in face.
The technical scheme is that a kind of mould bag filled type anchor bolt grouting device, comprising: aperture sealing of hole steel pipe, wall surface
Presbyopia, level pressure disabler A, aperture sealing of hole mould bag, slip casting steel pipe, level pressure disabler B, reinforcing rib, bottom hole anchor steel pipe, bottom hole anchor
Solid model bag；
The aperture sealing of hole steel pipe, the slip casting steel pipe, bottom hole anchoring steel pipe are seamless steel pipe, are fixedly connected,
The junction of the aperture sealing of hole steel pipe (1) and the slip casting steel pipe (5) is placed in level pressure disabler A, in the slip casting steel pipe (5)
Level pressure disabler B is placed in the junction of bottom hole anchoring steel pipe (7)；
The aperture sealing of hole length of steel pipe is consistent with aperture sealing of hole area depth, for by the wall surface presbyopia by striaght cement
Slurry injects the aperture sealing of hole mould bag；
The wall surface presbyopia is arranged the neat slurry in the aperture sealing of hole steel pipe surrounding, for that will fill and injects the hole
Mouth sealing of hole mould bag；The wall surface presbyopia is arranged in the slip casting steel pipe surrounding, neat slurry and accelerated cement for that will fill
Slurry injection crushed zone stratum；
The level pressure disabler A is crushed after aperture sealing of hole mould bag filling finishes and reaches design grouting pressure, makes to add
The neat slurry of note injects the slip casting steel pipe；
The aperture sealing of hole mould bag is fixed on the aperture sealing of hole steel pipe, after injecting the neat slurry of certain pressure, institute
It states aperture sealing of hole mould bag to swell, realizes orifice closing；
The slip casting length of steel pipe is consistent with crushed zone depth of stratum, for by the wall surface presbyopia 2 by neat slurry
Crushed zone stratum is injected with Fast Setting Cement Slurry；
The Fast Setting Cement Slurry on the crushed zone stratum to be implanted level pressure disabler B is crushed after reaching scheduled pressure, makes to add
The neat slurry of note injects the bottom hole and anchors steel pipe；
The reinforcing rib 7 is reinforcing bar or pastes glass mat, is welded on around the slip casting steel pipe, described for improving
The shearing resistance of slip casting steel pipe, tensile strength；
The bottom hole anchoring steel pipe, which is used to neat slurry injecting the bottom hole according to scheduled pressure, anchors mould bag；
The bottom hole anchoring mould bag is fixed on the bottom hole anchoring steel pipe, after injecting the neat slurry of certain pressure, institute
It states bottom hole anchoring mould bag to swell, realizes the filling of device to hole base space.
A kind of mould bag filled type anchor bolt grouting method, using a kind of above-mentioned mould bag filled type anchor bolt grouting device, including under
Column step:
A. data and surrounding rock consolidation design objective are reconnoitred according to crushed zone loose wall rock, calculates and reaches design value to stabilization zone
Required aperture sealing of hole mould bag size, anchor bolt grouting drilling depth, bottom hole anchoring mould bag size, Grouting Pipe reinforcing rib size,
Drilling hole amount and the spacing of wells；
B. according to design anchoring hole location drilling, select bit diameter for Φ 70mm to Φ 200mm drill hole of drilling machine, drilling is primary
It is drilled into design anchorage depth；
C. anchor bolt grouting pipe is assembled；Aperture sealing of hole steel pipe, slip casting steel pipe and bottom hole anchoring steel pipe are connected first,
Each connecting portion is placed in level pressure disabler, realizes aperture sealing of hole area, middle part broken formation stabilization zone and bottom hole anchorage zone
Subregion slip casting；Then reinforcing rib and slip casting steel pipe are fixed as one, finally by aperture sealing of hole mould bag and bottom hole anchoring mould bag point
It does not cover on aperture sealing of hole steel pipe and bottom hole anchoring steel pipe and fixed；
D. after the assembling of anchor bolt grouting pipe, connection grouting pump starts slip casting, while recording injection pressure curve and flow；
Grouting sequence is from aperture to bottom hole；
First by the striaght cement slurries injection hole mouth sealing of hole mould bag of ratio of mud 0.6:1~0.8:1, design pressure is reached
Afterwards, it maintains grouting pressure 5 to 10 minutes, terminates the bag slip casting of aperture sealing of hole mould；
Then hole flushing and grouting pressure is improved to level pressure stopper design pressure, slip casting disabler failure, injection slurry passes through
Grouting Pipe wall surface presbyopia enters crushed zone stratum, and accelerator is added in aperture at this time, forms accelerated cement slurries, accelerated cement slurries
Setting time can be by adjusting rapid hardening agent content, 30 seconds to several minutes are controllable, and the cement slurry of quick solidification can effectively avoid brokenly
The broken erosion with underground water in stratum improves the slip casting filling rate on crushed zone stratum, and when crushed zone stratum, grouting pressure, which reaches, sets
After evaluation, grouting pressure stopping slip casting in 5 to 10 minutes is maintained, and with high pressure water cleaning grouting pipe；
Last hole flushing simultaneously improves grouting pressure to level pressure stopper design pressure, and the failure of slip casting disabler uses water again
The striaght cement slurries filling bottom hole of gray scale 0.6:1~0.8:1 anchors mould bag, after reaching design pressure, maintains grouting pressure 5 to 10
Minute, terminate the bag slip casting of hole bed die；
E. after solidifying a few hours, prefabricated anchor plate is installed in aperture, terminates the casement bag filled type anchor bolt grouting.
The present invention anchors steel pipe three parts, and mould is arranged by the way that anchor pole is divided into aperture sealing of hole steel pipe, slip casting steel pipe, bottom hole
Bag, reinforcing rib, wall surface presbyopia, swell in conjunction with mould bag slip casting, unsuitable spillage the features such as, realize filling out for the low anchoring in hole and aperture
Fill closing；By wall surface presbyopia, what realization cement slurry, solidification were starched is efficiently injected into loose wall rock；To effectively increase slip casting pressure
Power, Fast Filling crushed zone loose wall rock, avoids injection slurry by underground water erosion, ultimately forms firm mould bag filled type
Anchor pole improves construction quality and technical level comprehensively.
Detailed description of the invention
Fig. 1 is structure of the invention composition schematic diagram.
Fig. 2 is the method for the present invention flow chart.
The aperture 1-- sealing of hole steel pipe, 2-- wall surface presbyopia, 3-- level pressure disabler, the aperture 4-- sealing of hole mould bag, 5-- slip casting steel
Pipe, 6-- reinforcing rib, 7-- bottom hole anchoring steel pipe, 8-- bottom hole anchor mould bag
Specific embodiment
Embodiment 1: referring to Fig. 1, a kind of mould bag filled type anchor bolt grouting device, comprising: aperture sealing of hole steel pipe 1, wall surface flower
Eye 2, level pressure disabler A, aperture sealing of hole mould bag 4, slip casting steel pipe 5, level pressure disabler B, reinforcing rib 6, bottom hole anchor steel pipe 7, hole
Bottom anchors mould bag 8；
The aperture sealing of hole steel pipe 1, the slip casting steel pipe 5, bottom hole anchoring steel pipe 7 are seamless steel pipe, are fixedly connected,
It is placed in level pressure disabler A in the junction of the aperture sealing of hole steel pipe (1) and the slip casting steel pipe (5), in the slip casting steel pipe
(5) level pressure disabler B is placed in the junction of bottom hole anchoring steel pipe (7)；
1 length of aperture sealing of hole steel pipe is consistent with aperture sealing of hole area depth, for by the wall surface presbyopia 2 by pure water
Mud injects the aperture sealing of hole mould bag 4；
The wall surface presbyopia 2 is arranged described in the neat slurry injection in 1 surrounding of aperture sealing of hole steel pipe, for that will fill
Aperture sealing of hole mould bag 4；Neat slurry and rapid hardening in 5 surrounding of slip casting steel pipe, for that will fill is arranged in the wall surface presbyopia 2
Cement slurry injects crushed zone stratum；
The level pressure disabler A is crushed after the aperture sealing of hole mould bag 4 filling finishes and reaches design grouting pressure, makes to add
The neat slurry of note injects the slip casting steel pipe 5；
The aperture sealing of hole mould bag 4 is fixed on the aperture sealing of hole steel pipe 1, after injecting the neat slurry of certain pressure,
The aperture sealing of hole mould bag 4 swells, and realizes orifice closing；
5 length of slip casting steel pipe is consistent with crushed zone depth of stratum, for by the wall surface presbyopia 2 by neat slurry
Crushed zone stratum is injected with Fast Setting Cement Slurry；
The Fast Setting Cement Slurry on injection crushed zone stratum is crushed after reaching scheduled pressure in the level pressure disabler B, makes to add
The neat slurry of note injects the bottom hole and anchors steel pipe 7；
The reinforcing rib 6 is reinforcing bar or pastes glass mat, is welded on around the slip casting steel pipe 5, for improving
State 5 shearing resistance of slip casting steel pipe, tensile strength；
The bottom hole anchoring steel pipe 7, which is used to neat slurry injecting the bottom hole according to scheduled pressure, anchors mould bag 8；
The bottom hole anchoring mould bag 8 is fixed on the bottom hole anchoring steel pipe 7, after injecting the neat slurry of certain pressure,
The bottom hole anchoring mould bag 8 swells, and realizes the filling of device to hole base space.
Embodiment 2: referring to fig. 2, a kind of 2. mould bag filled type anchor bolt grouting methods use a kind of mould described in embodiment 1
Bag filled type anchor bolt grouting device, including the following steps:
A. data and surrounding rock consolidation design objective are reconnoitred according to crushed zone loose wall rock, calculates and reaches design value to stabilization zone
Required aperture sealing of hole mould bag size, anchor bolt grouting drilling depth, bottom hole anchoring mould bag size, Grouting Pipe reinforcing rib size,
Drilling hole amount and the spacing of wells；
B. according to design anchoring hole location drilling, select bit diameter for Φ 70mm to Φ 200mm drill hole of drilling machine, drilling is primary
It is drilled into design anchorage depth；
C. anchor bolt grouting pipe is assembled；Aperture sealing of hole steel pipe, slip casting steel pipe and bottom hole anchoring steel pipe are connected first,
Each connecting portion is placed in level pressure disabler, realizes aperture sealing of hole area, middle part broken formation stabilization zone and bottom hole anchorage zone
Subregion slip casting；Then reinforcing rib and slip casting steel pipe are fixed as one, finally by aperture sealing of hole mould bag and bottom hole anchoring mould bag point
It does not cover on aperture sealing of hole steel pipe and bottom hole anchoring steel pipe and fixed；
D. after the assembling of anchor bolt grouting pipe, connection grouting pump starts slip casting, while recording injection pressure curve and flow；
Grouting sequence is from aperture to bottom hole；
First by the striaght cement slurries injection hole mouth sealing of hole mould bag of ratio of mud 0.6:1~0.8:1, design pressure is reached
Afterwards, it maintains grouting pressure 5 to 10 minutes, terminates the bag slip casting of aperture sealing of hole mould；
Then hole flushing and grouting pressure is improved to level pressure stopper design pressure, slip casting disabler failure, injection slurry passes through
Grouting Pipe wall surface presbyopia enters crushed zone stratum, and accelerator is added in aperture at this time, forms accelerated cement slurries, accelerated cement slurries
Setting time can be by adjusting rapid hardening agent content, 30 seconds to several minutes are controllable, and the cement slurry of quick solidification can effectively avoid brokenly
The broken erosion with underground water in stratum improves the slip casting filling rate on crushed zone stratum, and when crushed zone stratum, grouting pressure, which reaches, sets
After evaluation, grouting pressure stopping slip casting in 5 to 10 minutes is maintained, and with high pressure water cleaning grouting pipe；
Last hole flushing simultaneously improves grouting pressure to level pressure stopper design pressure, and the failure of slip casting disabler uses water again
The striaght cement slurries filling bottom hole of gray scale 0.6:1~0.8:1 anchors mould bag, after reaching design pressure, maintains grouting pressure 5 to 10
Minute, terminate the bag slip casting of hole bed die；
E. after solidifying a few hours, prefabricated anchor plate is installed in aperture, terminates the casement bag filled type anchor bolt grouting.
Claims (2)
1. a kind of mould bag filled type anchor bolt grouting device characterized by comprising aperture sealing of hole steel pipe (1), wall surface presbyopia (2),
Level pressure disabler A, aperture sealing of hole mould bag (4), slip casting steel pipe (5), level pressure disabler B, reinforcing rib (6), bottom hole anchor steel pipe
(7), bottom hole anchoring mould bag (8)；
The aperture sealing of hole steel pipe (1), the slip casting steel pipe (5), bottom hole anchoring steel pipe (7) are seamless steel pipe, fixed to connect
It connects and is placed in level pressure disabler A in the junction of the aperture sealing of hole steel pipe (1) and the slip casting steel pipe (5), in the slip casting steel
The junction for managing (5) and bottom hole anchoring steel pipe (7) is placed in level pressure disabler B；
Aperture sealing of hole steel pipe (1) length is consistent with aperture sealing of hole area depth, for by the wall surface presbyopia (2) by pure water
Mud injects the aperture sealing of hole mould bag (4)；
The wall surface presbyopia (2) is arranged described in the neat slurry injection in aperture sealing of hole steel pipe (1) surrounding, for that will fill
Aperture sealing of hole mould bag (4)；The neat slurry in slip casting steel pipe (5) surrounding, for will fill is arranged in the wall surface presbyopia (2)
Crushed zone stratum is injected with Fast Setting Cement Slurry；
The level pressure disabler A is crushed after the aperture sealing of hole mould bag (4) filling finishes and reaches design grouting pressure, makes to fill
Neat slurry inject the slip casting steel pipe (5)；
The aperture sealing of hole mould bag (4) is fixed on the aperture sealing of hole steel pipe (1), after injecting the neat slurry of certain pressure,
The aperture sealing of hole mould bag (4) swells, and realizes orifice closing；
Slip casting steel pipe (5) length is consistent with crushed zone depth of stratum, for by the wall surface presbyopia (2) by neat slurry
Crushed zone stratum is injected with Fast Setting Cement Slurry；
The Fast Setting Cement Slurry on the crushed zone stratum to be implanted level pressure disabler B is crushed after reaching scheduled pressure, makes filling
Neat slurry injects bottom hole anchoring steel pipe (7)；
The reinforcing rib (6) is reinforcing bar or pastes glass mat, is welded on around the slip casting steel pipe (5), for improving
State slip casting steel pipe (5) shearing resistance, tensile strength；
Bottom hole anchoring steel pipe (7) is used to neat slurry injecting bottom hole anchoring mould bag (8) according to scheduled pressure；
Bottom hole anchoring mould bag (8) is fixed on bottom hole anchoring steel pipe (7), after injecting the neat slurry of certain pressure,
Bottom hole anchoring mould bag (8) swells, and realizes the filling of device to hole base space.
2. a kind of mould bag filled type anchor bolt grouting method is filled using a kind of mould bag filled type anchor bolt grouting described in claim 1
It sets, it is characterised in that: include the following steps:
A. data and surrounding rock consolidation design objective are reconnoitred according to crushed zone loose wall rock, calculating reaches needed for design value to stabilization zone
Aperture sealing of hole mould bag size, anchor bolt grouting drilling depth, the bottom hole anchoring mould bag size, Grouting Pipe reinforcing rib size, drilling wanted
Quantity and the spacing of wells；
B. according to design anchoring hole location drilling, select bit diameter for Φ 70mm to Φ 200mm drill hole of drilling machine, drilling is once drilled into
Design anchorage depth；
C. anchor bolt grouting pipe is assembled；Aperture sealing of hole steel pipe, slip casting steel pipe and bottom hole anchoring steel pipe are connected first, each
Connecting portion is all placed in level pressure disabler, realizes the subregion of aperture sealing of hole area, middle part broken formation stabilization zone and bottom hole anchorage zone
Slip casting；Then reinforcing rib and slip casting steel pipe are fixed as one, finally cover aperture sealing of hole mould bag and bottom hole anchoring mould bag respectively
It is on aperture sealing of hole steel pipe and bottom hole anchoring steel pipe and fixed；
D. after the assembling of anchor bolt grouting pipe, connection grouting pump starts slip casting, while recording injection pressure curve and flow；Slip casting
Sequence is from aperture to bottom hole；
First by the striaght cement slurries injection hole mouth sealing of hole mould bag of ratio of mud 0.6:1~0.8:1, after reaching design pressure, tie up
It holds grouting pressure 5 to 10 minutes, terminates the bag slip casting of aperture sealing of hole mould；
Then hole flushing and grouting pressure is improved to level pressure stopper design pressure, slip casting disabler failure, injection slurry passes through slip casting
Tube wall face presbyopia enters crushed zone stratum, and accelerator is added in aperture at this time, forms accelerated cement slurries, and accelerated cement slurries coagulate
Gu the time can be by adjusting rapid hardening agent content, 30 seconds to several minutes controllable, and the cement slurry of quick solidification can effectively avoid crushed zone
The erosion of underground water in stratum improves the slip casting filling rate on crushed zone stratum, and when crushed zone stratum, grouting pressure reaches design value
Afterwards, grouting pressure stopping slip casting in 5 to 10 minutes is maintained, and with high pressure water cleaning grouting pipe；
Last hole flushing simultaneously improves grouting pressure to level pressure stopper design pressure, and the failure of slip casting disabler uses the ratio of mud again
The striaght cement slurries filling bottom hole of 0.6:1~0.8:1 anchors mould bag, after reaching design pressure, maintains 5 to 10 points of grouting pressure
Clock terminates the bag slip casting of hole bed die；
E. after solidifying a few hours, prefabricated anchor plate is installed in aperture, terminates the casement bag filled type anchor bolt grouting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710796824.8A CN107747498B (en) | 2017-09-06 | 2017-09-06 | A kind of mould bag filled type anchor bolt grouting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710796824.8A CN107747498B (en) | 2017-09-06 | 2017-09-06 | A kind of mould bag filled type anchor bolt grouting device and method |
Publications (2)
| Publication Number | Publication Date |
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| CN107747498A CN107747498A (en) | 2018-03-02 |
| CN107747498B true CN107747498B (en) | 2019-03-22 |
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| CN201710796824.8A Active CN107747498B (en) | 2017-09-06 | 2017-09-06 | A kind of mould bag filled type anchor bolt grouting device and method |
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| CN109798140B (en) * | 2019-02-21 | 2020-12-18 | 平顶山天安煤业股份有限公司 | Splitting grouting reinforcement support method for kilometer deep well soft rock |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202380463U (en) * | 2011-12-19 | 2012-08-15 | 中铁第四勘察设计院集团有限公司 | Grouting capsule type recyclable anchor cable |
| CN103603683A (en) * | 2013-12-03 | 2014-02-26 | 河南理工大学 | Bag type grouting anchoring device and anchoring method |
| CN204475326U (en) * | 2015-03-01 | 2015-07-15 | 宁波鸿晨建设有限公司 | The construction equipment of anti-slub type anti-float anchor rod |
| CN105888673A (en) * | 2016-05-09 | 2016-08-24 | 山东大学 | Deep-hole plastic pipe high-pressure grouting anti-explosion device in soft water-rich surrounding rock and operation method |
| CN105909257A (en) * | 2016-05-31 | 2016-08-31 | 山东大学 | Separated grouting device in drilled hole and sectional grouting operation process |
-
2017
- 2017-09-06 CN CN201710796824.8A patent/CN107747498B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202380463U (en) * | 2011-12-19 | 2012-08-15 | 中铁第四勘察设计院集团有限公司 | Grouting capsule type recyclable anchor cable |
| CN103603683A (en) * | 2013-12-03 | 2014-02-26 | 河南理工大学 | Bag type grouting anchoring device and anchoring method |
| CN204475326U (en) * | 2015-03-01 | 2015-07-15 | 宁波鸿晨建设有限公司 | The construction equipment of anti-slub type anti-float anchor rod |
| CN105888673A (en) * | 2016-05-09 | 2016-08-24 | 山东大学 | Deep-hole plastic pipe high-pressure grouting anti-explosion device in soft water-rich surrounding rock and operation method |
| CN105909257A (en) * | 2016-05-31 | 2016-08-31 | 山东大学 | Separated grouting device in drilled hole and sectional grouting operation process |
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| CN107747498A (en) | 2018-03-02 |
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