CN106640159A - Connecting sleeve sealing structure for self-drilling type hollow grouting anchors - Google Patents
Connecting sleeve sealing structure for self-drilling type hollow grouting anchors Download PDFInfo
- Publication number
- CN106640159A CN106640159A CN201610925784.8A CN201610925784A CN106640159A CN 106640159 A CN106640159 A CN 106640159A CN 201610925784 A CN201610925784 A CN 201610925784A CN 106640159 A CN106640159 A CN 106640159A
- Authority
- CN
- China
- Prior art keywords
- self
- tubular body
- grouting
- hollow grouting
- type hollow
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 title claims abstract description 22
- 239000004568 cement Substances 0.000 abstract description 11
- 239000011435 rock Substances 0.000 abstract description 7
- 239000011440 grout Substances 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 description 10
- 238000007569 slipcasting Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
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)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides a connecting sleeve type sealing structure for self-drilling type hollow grouting anchors. A connecting sleeve comprises a tubular body. Inner threads are separately arranged in inner holes in the two ends of the tubular body and used for being connected with the self-drilling type hollow grouting anchors. An annular boss is arranged at an inner hole in the middle of the tubular body and used for positioning of the self-drilling type hollow grouting anchors connected with the two ends of the tubular body. An inner annular face of the annular boss is provided with a sealing groove used for mounting a sealing ring. By adoption of the connecting sleeve type sealing structure, the phenomenon of grout leakage of the self-drilling type hollow anchors in the grouting process is avoided, the problem of excessive loss of the grouting pressure in the grouting process is further solved, the compactness of solidified cement grout is ensured, it is ensured that rock fractures can be quite well filled with the grout, and the project construction quality is greatly improved.
Description
Technical field
The present invention relates to self-drilling hollow anchor bars slurry injection technique field in geotechnical anchor engineering, in particularly a kind of self-drilling type
Empty grouted anchor bar adapter sleeve sealing structure.
Background technology
Self-drilling hollow grouting anchoring-bolt is applied in large quantities advanced in tunnel as a kind of effectively anchoring means
Shield, radial direction supporting, slope reinforcement, subgrade strengthening and tunnel disease training works, in recent years, China railways system treasured into two
Line, precious center line, Nanning Kunming Railway, Xikang line, north yellow line, up to ten thousand lines, Shui Baixian, the big line of the Chu of vast line and highway system, beautiful unit
It is widely used in the engineerings such as the dozens of such as line tunnel, roadbed, side slope, achieves significant social benefit and good
Economic benefit.But at present, due to construction technology imperfection in work progress, quality cannot in work progress for domestic anchor pole
Ensure well, during self-drilling hollow anchor bars slip casting, without sealing device, cause spillage, grouting pressure loss it is serious,
Cement grout can not be filled into well in rock cranny, so as to construction quality greatly reduces.
The content of the invention
The technical problem to be solved is to provide a kind of Self-drilling hollow grouting anchoring-bolt adapter sleeve sealing structure,
Can solve the problem that spillage during bolt grouting, grouting pressure lose serious, cement grout and can not well be filled into rock cranny
In problem, improve construction quality.
In order to realize solving the purpose of above-mentioned technical problem, following technical scheme is present invention employs：In a kind of self-drilling type
Empty grouted anchor bar adapter sleeve sealing structure, is characterized in that：The adapter sleeve includes tubular body；Tubular body two ends endoporus is equal
Internal thread is provided with, for connecting Self-drilling hollow grouting anchoring-bolt；Annular boss is provided with the endoporus in tubular body centre position,
For the positioning of the Self-drilling hollow grouting anchoring-bolt of two ends connection, sealed groove is provided with the annular boss inner ring surface, is used
In installation sealing ring.
After rock mass pore-forming, sealing ring is installed in the sealed groove of adapter sleeve, one is respectively connected certainly at adapter sleeve two ends
Brill formula hollow grouting anchor, anchor pole total length is provided with external screw thread, and two ends are provided with one section of diameter less than adapter sleeve annular boss
The step of annular diameters, to ensure that step can pass through adapter sleeve annular boss；Two hollow grouting anchors are all screwed and connected
Female connector convex annular table top contact position, anchor pole front end is provided with 30～60 chamfering, in anchor pole Leading end chamfer and sealed groove
Sealing ring is fully contacted to form annular seal space；A drill bit is installed in hollow grouting anchor front end, and bit face is provided with slip casting water hole；Anchor
Bar tail end connects filling adaptor, and filling adaptor is connected with Grouting Pipe；When slip casting, high pressure cement slurries are entered from Grouting Pipe,
Jing filling adaptors flow into grouted anchor bar endoporus, then after adapter sleeve sealing function, high pressure cement slurries are transported to into another
In anchor pole endoporus, chisel edge water hole is eventually passed through, after high pressure cement slurries are in spurting access aperture, to fill up rapidly drilling,
From at blast pipe stream, slip casting is completed high pressure cement slurries.
There is following beneficial effect by adopting above-mentioned technical proposal, the present invention：It is hollow that the present invention solves self-drilling type
Anchor pole spillage phenomenon during slip casting, also solves grouting pressure during slip casting and loses excessive problem, it is ensured that cement
Packing and slurries after grout cures can be good at being filled in rock cranny, greatly improve engineering construction matter
Amount.
Description of the drawings
Fig. 1 is adapter sleeve sealed structure chart.
Fig. 2 is the use state figure of this patent.
Fig. 3 is the internal structure schematic diagram of this patent.
In figure, 1- high pressure cement slurries, 2- rock mass, 3- hollow grouting anchors, 4- adapter sleeves, 5- sealed grooves, 6- rings
Shape boss, 7- blast pipes, 8- filling adaptors, 9- Grouting Pipes, 10- sealing rings.
Specific embodiment
This patent is further explained below in conjunction with the accompanying drawings.But the protection domain of this patent is not limited to specific enforcement
Mode.
Embodiment 1
As illustrated, a kind of Self-drilling hollow grouting anchoring-bolt 3 of this patent sealing structure of adapter sleeve 4, adapter sleeve 4 includes tubulose
Body；Tubular body two ends endoporus is provided with internal thread, for connecting Self-drilling hollow grouting anchoring-bolt 3；Tubular body centre position
Annular boss 6 is provided with endoporus, for the positioning of the Self-drilling hollow grouting anchoring-bolt 3 of two ends connection, the inner ring surface of annular boss 6
On be provided with sealed groove 5, for installing sealing ring 10.
After the pore-forming of rock mass 2, sealing ring 10 is installed in the sealed groove 5 of adapter sleeve 4, respectively connects at the two ends of adapter sleeve 4
A piece Self-drilling hollow grouting anchoring-bolt 3, anchor pole total length is provided with external screw thread, and two ends are provided with one section of diameter less than adapter sleeve 4
The step of the annular diameters of annular boss 6, to ensure that step can pass through the annular boss 6 of adapter sleeve 4；Two hollow grouting anchors 3
All screw and the face contact position of 4 annular boss of adapter sleeve 6, anchor pole front end is provided with 45 ° of chamfering, anchor pole Leading end chamfer with it is close
Sealing ring 10 is fully contacted to form annular seal space in envelope groove 5；A drill bit is installed in the front end of hollow grouting anchor 3, and bit face is arranged
There is slip casting water hole；End of anchor rod connects filling adaptor 8, and filling adaptor 8 is connected with Grouting Pipe 9；When slip casting, water under high pressure mud
Liquid 1 is entered from Grouting Pipe 9, and Jing filling adaptors 8 flow into grouted anchor bar endoporus, then after the sealing function of adapter sleeve 4, by water under high pressure
Slurry liquid 1 is transported in another anchor pole endoporus, eventually passes through chisel edge water hole, and high pressure cement slurries 1 are with spurting entrance
In hole, after drilling is filled up rapidly, from the stream of blast pipe 7, slip casting is completed high pressure cement slurries 1.
Claims (1)
1. a kind of Self-drilling hollow grouting anchoring-bolt adapter sleeve sealing structure, is characterized in that：The adapter sleeve includes tubular body；Institute
State tubular body two ends endoporus and be provided with internal thread, for connecting Self-drilling hollow grouting anchoring-bolt；Tubular body centre position it is interior
Annular boss is provided with hole, for the positioning of the Self-drilling hollow grouting anchoring-bolt of two ends connection, the annular boss inner ring surface
On be provided with sealed groove, for installing sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610925784.8A CN106640159A (en) | 2016-10-31 | 2016-10-31 | Connecting sleeve sealing structure for self-drilling type hollow grouting anchors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610925784.8A CN106640159A (en) | 2016-10-31 | 2016-10-31 | Connecting sleeve sealing structure for self-drilling type hollow grouting anchors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106640159A true CN106640159A (en) | 2017-05-10 |
Family
ID=58856723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610925784.8A Pending CN106640159A (en) | 2016-10-31 | 2016-10-31 | Connecting sleeve sealing structure for self-drilling type hollow grouting anchors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640159A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218071A (en) * | 2017-07-31 | 2017-09-29 | 中铁十七局集团第工程有限公司 | The quick grouting device of hollow bolt in the range of applicable 360 ° |
| CN110500126A (en) * | 2019-09-20 | 2019-11-26 | 中铁隧道集团一处有限公司 | Hollow bolt filling adaptor and hollow bolt construction technology |
| CN113464185A (en) * | 2021-08-26 | 2021-10-01 | 中铁二十五局集团第四工程有限公司 | Recoverable yielding anchor rod and method for reinforcing rock mass by using same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2292837Y (en) * | 1996-10-18 | 1998-09-30 | 铁道部第五工程局机电设备工业总公司 | Drilling anchor-bolt for deep hole grouting |
| CN201396179Y (en) * | 2009-03-31 | 2010-02-03 | 中国矿业大学 | Back-resistant self-grout stopping grouting anchor |
| CN201581818U (en) * | 2010-01-05 | 2010-09-15 | 赵明理 | Coupling for high anticorrosive and high anti-leakage oil pipe |
| CH702595A2 (en) * | 2010-01-28 | 2011-07-29 | Kuechler Technik Ag | Bohrankerdichtung and self-drilling with such Bohrankerdichtung. |
| CN202090850U (en) * | 2011-05-18 | 2011-12-28 | 首都航天机械公司 | Pipeline connecting piece between thread and conical seal surface with limited circular bead |
| CN202416312U (en) * | 2011-12-13 | 2012-09-05 | 江苏建筑职业技术学院 | Pre-blastable anchor rod with integration of drilling, injecting and anchoring |
| CN206256918U (en) * | 2016-10-31 | 2017-06-16 | 洛阳中岩工程材料有限公司 | A kind of Self-drilling hollow grouting anchoring-bolt adapter sleeve sealing structure |
-
2016
- 2016-10-31 CN CN201610925784.8A patent/CN106640159A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2292837Y (en) * | 1996-10-18 | 1998-09-30 | 铁道部第五工程局机电设备工业总公司 | Drilling anchor-bolt for deep hole grouting |
| CN201396179Y (en) * | 2009-03-31 | 2010-02-03 | 中国矿业大学 | Back-resistant self-grout stopping grouting anchor |
| CN201581818U (en) * | 2010-01-05 | 2010-09-15 | 赵明理 | Coupling for high anticorrosive and high anti-leakage oil pipe |
| CH702595A2 (en) * | 2010-01-28 | 2011-07-29 | Kuechler Technik Ag | Bohrankerdichtung and self-drilling with such Bohrankerdichtung. |
| CN202090850U (en) * | 2011-05-18 | 2011-12-28 | 首都航天机械公司 | Pipeline connecting piece between thread and conical seal surface with limited circular bead |
| CN202416312U (en) * | 2011-12-13 | 2012-09-05 | 江苏建筑职业技术学院 | Pre-blastable anchor rod with integration of drilling, injecting and anchoring |
| CN206256918U (en) * | 2016-10-31 | 2017-06-16 | 洛阳中岩工程材料有限公司 | A kind of Self-drilling hollow grouting anchoring-bolt adapter sleeve sealing structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218071A (en) * | 2017-07-31 | 2017-09-29 | 中铁十七局集团第工程有限公司 | The quick grouting device of hollow bolt in the range of applicable 360 ° |
| CN110500126A (en) * | 2019-09-20 | 2019-11-26 | 中铁隧道集团一处有限公司 | Hollow bolt filling adaptor and hollow bolt construction technology |
| CN110500126B (en) * | 2019-09-20 | 2024-03-15 | 中铁隧道集团一处有限公司 | Grouting joint for hollow anchor rod and construction process for hollow anchor rod |
| CN113464185A (en) * | 2021-08-26 | 2021-10-01 | 中铁二十五局集团第四工程有限公司 | Recoverable yielding anchor rod and method for reinforcing rock mass by using same |
| CN113464185B (en) * | 2021-08-26 | 2023-10-27 | 中铁二十五局集团第四工程有限公司 | Recoverable yielding anchor rod and method for reinforcing rock mass by using same |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |