CN107218071A - The quick grouting device of hollow bolt in the range of applicable 360 ° - Google Patents
The quick grouting device of hollow bolt in the range of applicable 360 ° Download PDFInfo
- Publication number
- CN107218071A CN107218071A CN201710635588.1A CN201710635588A CN107218071A CN 107218071 A CN107218071 A CN 107218071A CN 201710635588 A CN201710635588 A CN 201710635588A CN 107218071 A CN107218071 A CN 107218071A
- Authority
- CN
- China
- Prior art keywords
- grouting
- hollow bolt
- hollow
- branch sleeve
- stop
- 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.)
- Pending
Links
- 239000002002 slurry Substances 0.000 claims abstract description 23
- 230000008859 change Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims 2
- 238000007569 slipcasting Methods 0.000 abstract description 30
- 229920002472 Starch Polymers 0.000 abstract description 5
- 235000019698 starch Nutrition 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000008107 starch Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000005012 migration Effects 0.000 abstract description 3
- 238000013508 migration Methods 0.000 abstract description 3
- 230000037361 pathway Effects 0.000 abstract description 3
- 238000004513 sizing Methods 0.000 abstract 3
- 239000011083 cement mortar Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 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
- E21D20/028—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)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses the quick grouting device of hollow bolt and its method in the range of a kind of 360 °, it is related to tunnel technology.The quick grouting device of described hollow bolt is included into sizing device, exhaust apparatus, grouting device and only sizing device.It is that a certain position sets using branch sleeve and changes slurry channels with stop grouting plug in the middle of hollow bolt to enter sizing device, and external slip casting is carried out by the slurry-feeding hole on bar body sidewall.Branch sleeve must be using every formula branch sleeve, being reached with to meet stop grouting plug and only starch and change slurries migration pathway effect in holes under grouting pressure.The disassembling cleaning after slurries initial set such as all filling adaptors, ball valve, stop grouting plug is clean, and it is with blast pipe jacking specific purpose tool etc., and device is reused.
Description
Technical field
It is specially the quick slip casting of hollow bolt in the range of a kind of applicable 360 ° the invention belongs to constructing tunnel technology field
Device, is equally applicable to similar subgrade engineering.
Background technology
Tunnel Rock Bolt plays vital effect in control tunnel wall rock deformation, current more tunnel anchor pole branch
Shield design uses hollow bolt or self-advancing type hollow bolt, and it is mainly characterized by anchor pole and is laid in arch wall, and length is long, anchor hole direction
For vertically upward, obliquely, horizontally or obliquely inferior all directions are present, for vertically upward, downwards, obliquely, level
The traditional grouting mode of the bolthole in direction uses the external slip casting of anchor pole, and its major defect is：（1）, need to at aperture drill carry out
Expanding treatment；（2）, closure aperture need synchronous embedment flexible grout pipe；（3）, during slip casting because slip casting pipe pressure is present
It is easily caused and has been embedded to Grouting Pipe and moves back and forth, form gas leakage, running pulp phenomenon, grouting pressure can not meets requirement, cause the body of rod
Surrounding slip casting plumpness is extremely difficult to design requirement；（4）, external Grouting Pipe is embedded, port closing is to the requirement of workman's technical merit
It is higher.
The content of the invention
It is existing for solving it is an object of the invention to provide the quick grouting device of hollow bolt in the range of a kind of applicable 360 °
Have vertically upward, downwards, obliquely, the hollow bolt slip casting in the direction such as level wastes time and energy and the problem of slip casting is not full.
The present invention adopts the following technical scheme that realization：
The quick grouting device of hollow bolt in the range of a kind of applicable 360 °, including the first hollow bolt and the second hollow bolt,
First hollow bolt and the second hollow bolt in every formula branch sleeve connect, it is described in every the centre of formula branch sleeve
Hole is provided with dividing plate；The second hollow bolt front end is provided with slurry-feeding hole, the slurry-feeding hole be located in every outside formula branch sleeve；Institute
The second hollow bolt front bottom end is stated equipped with stop grouting plug, the stop grouting plug is interior to install blast pipe, and the blast pipe connects with every formula
Hole connection on the central dividing plate of female connector cylinder；The second hollow bolt tail end, which is installed, becomes interposition head, and the change interposition head is with
Grouting stop-valve is installed, the blast pipe is from the hollow connecting rod other end in the connection of empty connecting rod threaded one end, the hollow connecting rod
Groove is passed；The hollow connecting rod other end threaded connection water supply connector, connects Grouting Pipe afterwards.
As shown in figure 1, after the completion of to tunnel surrounding armature boring, borehole cleaning is carried out to drilling, the first hollow bolt is inserted, even
Every formula branch sleeve in connecing, the second hollow bolt is connected, and accomplish fluently slurry-feeding hole in the second hollow bolt front end in advance；To only it starch again
Plug is connected with blast pipe, with stop grouting plug and blast pipe jacking specific purpose tool by stop grouting plug and the hollow bolt of blast pipe jacking second,
In at the central dividing plate of formula branch sleeve（As shown in Figure 2）, extract stop grouting plug and blast pipe jacking specific purpose tool；Using
Anchor Agent carries out aperture end-blocking to armature boring termination and the space of tunnel surrounding, and anchorage length is not less than 0.5m；Sealing of hole 30min
Afterwards, installed in the second hollow bolt tail end and become interposition head, hollow connecting rod of the connection with grouting stop-valve, by blast pipe from hollow company
Extension bar tail end groove is passed, and rotation pusher leg drill water supply connector is completely embedded with hollow connecting rod, finally connects slip casting
Pipe.
During slip casting, after slurries mixing is good, grouting pump slip casting is started, slurries pass through Grouting Pipe, the second hollow bolt front end
Slurry-feeding hole on the wall of side, into armature boring, then slurries are entered from drilling hole bottom by the front end of the first hollow bolt, then are led to
The blast pipe entered in crossing every the hole of formula branch sleeve at stop grouting plug, finally overflows from the tail end of blast pipe.Whole process should connect
Continuous perfusion, does not stop, when grouting pressure reaches 1.0MPa, suspends slip casting 15s, then proceedes to slip casting, is repeated several times until note
Pulp grinder start pressure reaches 0.8~1.0MPa.Slurries are observed from the excessive pulpous state state of blast pipe, if overflowing slurry show bubble, illustrate anchor pole
Slurries are not filled by full in hole；When lasting outflow cement mortar non-foam illustrates that slip casting is full.After the slip casting of piece anchor pole of completion,
Blast pipe is tightened, Grouting Pipe ball valve is closed, unloads pusher leg drill water supply connector and Grouting Pipe, be attached to another anchor pole,
Then slip casting is carried out.Slip casting 2h or so, unloads change interposition head, grouting stop-valve and threaded hollow connecting rod, is sealed with Anchor Agent successively
Stifled second hollow bolt termination, and the cement mortar become in interposition head, grouting stop-valve and threaded connecting rod is cleared up, put in order for next time
Slip casting is recycled.
Reasonable in design of the present invention is reliable, saves a large amount of manpower and materials, it is ensured that during slip casting while pressure effectively
Slip casting plumpness is improved, and cost is greatly reduced, advantage simple with structural member, easy to operate.
Brief description of the drawings
Fig. 1 represents hollow bolt grouting mode schematic diagram.
Fig. 2 represents stop grouting plug and blast pipe jacking schematic diagram.
In figure：Every formula branch sleeve in 1- tunnel surroundings, 2- armature borings, the hollow bolts of 3- first, 4-, 5- second is hollow
Anchor pole, 6- stop grouting plugs, 7- slurry-feeding holes, 8- apertures end-blocking, 9- blast pipes, 10- becomes interposition head, 11- grouting stop-valves, the hollow connections of 12-
Bar, 13-（Rotate pusher leg drill）Water supply connector, 14- Grouting Pipes, 15- stop grouting plugs and blast pipe jacking instrument.
Embodiment
The specific embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
The quick grouting device of hollow bolt in the range of a kind of applicable 360 °, including enter slurry portion, exhaust portion, slip casting portion and stop
Slurry portion.Specific annexation is as shown in figure 1, including the first hollow bolt 3 and the second hollow bolt 5, the first hollow bolt 3 and the
Two hollow bolts 5 are connected in every formula branch sleeve 4, in every being provided with hole on the central dividing plate of formula branch sleeve 4；Second is hollow
The front end of anchor pole 5 is provided with slurry-feeding hole 7, slurry-feeding hole 7 be located in every outside formula branch sleeve 4；The front bottom end of second hollow bolt 5 is equipped with only
Blast pipe 9 is installed in slurry plug 6, the stop grouting plug 6, blast pipe 9 is connected with every the hole on the central dividing plate of formula branch sleeve 4；
The tail end of second hollow bolt 5, which is installed, becomes interposition first 10, and the change interposition first 10 is connected with the hollow threaded one end of connecting rod 12, hollow
Grouting stop-valve 11 is installed, blast pipe 9 is passed from the hollow other end groove of connecting rod 12 in connecting rod 12；Hollow connecting rod 12 is another
End threaded connection rotation pusher leg drill water supply connector 13, connects Grouting Pipe 14 afterwards.
Set in two hollow bolt centre positions and every formula branch sleeve and change slurries using in holes with stop grouting plug and lead to
Road, external slip casting is carried out by slurry-feeding hole on bar body sidewall, is met stop grouting plug and can be reached under grouting pressure and only starches and change
Become slurries migration pathway effect.Using every formula branch sleeve, being reached only under grouting pressure with meeting stop grouting plug in holes
Starch and change slurries migration pathway effect.The disassembling cleaning after slurries initial set such as all filling adaptors, ball valve, stop grouting plug is done
Only, its device is reused with blast pipe jacking specific purpose tool etc..
After the completion of the armature boring 2 of tunnel surrounding 1, to drilling carry out borehole cleaning, insert the first hollow bolt 3, in connection every
Formula branch sleeve 4, connects the second hollow bolt 5；Stop grouting plug 6 is connected with blast pipe 9 again, with stop grouting plug and blast pipe jacking work
Tool 15 by stop grouting plug 6 and the jacking of blast pipe 9 into every formula branch sleeve 4, extract stop grouting plug and blast pipe jacking instrument；Using anchor
Gu agent carries out aperture end-blocking 8 to the termination of armature boring 2 and the space of tunnel surrounding 1, anchorage length is not less than 0.5m；Sealing of hole
After 30min, installed in the tail end of the second hollow bolt 5 and become interposition first 10, connection grouting stop-valve 11 and hollow connecting rod 12, by blast pipe
Passed from the threaded hollow tail end groove of connecting rod 12, rotate pusher leg drill water supply connector 13 and with hollow connecting rod
12 are completely embedded, and finally connect Grouting Pipe 14.
After slurries mixing is good, grouting pump slip casting is started, slurries on Grouting Pipe, the side wall of the second hollow bolt 5 by entering slurry
Hole 7, drilling hole bottom enter the first hollow bolt 3, then in every formula branch sleeve 4 bulkhead through-hole enter stop grouting plug 6 at
Blast pipe 9, finally overflows from the tail end of blast pipe 9.Whole process answers continuous pouring, does not stop, and treats that grouting pressure reaches
During 1.0MPa, suspend slip casting 15s, then proceed to slip casting, be repeated several times until slip casting machine start pressure reaches 0.8~1.0MPa.
Observe slurries to overflow pulpous state state from blast pipe, if overflowing slurry show bubble, illustrate in bolthole that slurries are not filled by full；When lasting outflow
Cement mortar non-foam illustrates that slip casting is full.After the slip casting of piece anchor pole of completion, blast pipe 9 is tightened, Grouting Pipe ball valve is closed（Only
Starch valve 11）, pusher leg drill water supply connector 13 and Grouting Pipe 14 are unloaded, another anchor pole is attached to, then carries out slip casting.Note
2h or so is starched, change interposition first 10 and threaded hollow connecting rod 12 are unloaded successively, the end of the second hollow bolt 5 is blocked with Anchor Agent
Head, and the cement mortar become in interposition first 10, grouting stop-valve 11 and hollow connecting rod 12 is cleared up, put in order makes for next slip casting circulation
With.
It should be noted last that, above example is merely to illustrate technical scheme and unrestricted, although ginseng
It is described in detail according to the embodiment of the present invention, it will be understood by those within the art that, to technical scheme
Modify or equivalent substitution, without departure from the spirit and scope of technical scheme, it all should cover the present invention's
In claims.
Claims (1)
1. the quick grouting device of hollow bolt in the range of a kind of applicable 360 °, it is characterised in that：Including the first hollow bolt（3）
With the second hollow bolt（5）, first hollow bolt（3）With the second hollow bolt（5）Every formula branch sleeve in（4）Even
Connect, it is described in every formula branch sleeve（4）Central dividing plate on be provided with hole；Second hollow bolt（5）Front end is provided with slurry-feeding hole
（7）, the slurry-feeding hole（7）Every formula branch sleeve in being located at（4）Outside；Second hollow bolt（5）Front bottom end is equipped with only slurry
Plug（6）, the stop grouting plug（6）Interior installation blast pipe（9）, the blast pipe（9）Every formula branch sleeve with（4）Central dividing plate
On hole connection；Second hollow bolt（5）Tail end, which is installed, becomes interposition head（10）, the change interposition head（10）With hollow connection
Bar（12）Threaded one end is connected, the hollow connecting rod（12）Upper installation grouting stop-valve（11）, the blast pipe（9）From hollow connection
Bar（12）Other end groove is passed；The hollow connecting rod（12）The other end is threadedly coupled water supply connector（13）, connect afterwards
Grouting Pipe（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710635588.1A CN107218071A (en) | 2017-07-31 | 2017-07-31 | The quick grouting device of hollow bolt in the range of applicable 360 ° |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710635588.1A CN107218071A (en) | 2017-07-31 | 2017-07-31 | The quick grouting device of hollow bolt in the range of applicable 360 ° |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107218071A true CN107218071A (en) | 2017-09-29 |
Family
ID=59954097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710635588.1A Pending CN107218071A (en) | 2017-07-31 | 2017-07-31 | The quick grouting device of hollow bolt in the range of applicable 360 ° |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107218071A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365031A (en) * | 2020-04-09 | 2020-07-03 | 宿州市健生矿山设备有限公司 | Network grouting device and using method thereof |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365031A (en) * | 2020-04-09 | 2020-07-03 | 宿州市健生矿山设备有限公司 | Network grouting device and using method thereof |
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| PB01 | Publication | ||
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Application publication date: 20170929 |