CN108951617A - Recoverable double-layer anchor rod - Google Patents
Recoverable double-layer anchor rod Download PDFInfo
- Publication number
- CN108951617A CN108951617A CN201810736822.4A CN201810736822A CN108951617A CN 108951617 A CN108951617 A CN 108951617A CN 201810736822 A CN201810736822 A CN 201810736822A CN 108951617 A CN108951617 A CN 108951617A
- Authority
- CN
- China
- Prior art keywords
- anchor pole
- steel disc
- layer anchor
- hinged steel
- hinged
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 73
- 239000010959 steel Substances 0.000 claims abstract description 73
- 238000004873 anchoring Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 9
- 239000010410 layer Substances 0.000 description 47
- 238000010586 diagram Methods 0.000 description 3
- 238000007569 slipcasting Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 244000273618 Sphenoclea zeylanica Species 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
- E02D5/765—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor removable
-
- 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)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a recyclable double-layer anchor rod, which comprises an inner-layer anchor rod (2) and a hollow outer-layer anchor rod (1) movably connected with the inner-layer anchor rod (2); outer stock (1) can be along the surface removal of inlayer stock (2), and outer stock (1) one end is lock nut (6) with inlayer stock (2) threaded connection, and outer stock (1) other end hinge steel sheet extending structure, and hinge steel sheet extending structure passes through expansion end (11) the limit position on inlayer stock (2). The anchor rod structure is used in engineering occasions with anchor rod dismantling requirements, facilitates the dismantling and reutilization of the anchor rod, does not need end head anchoring grouting, facilitates construction, and can reduce engineering investment.
Description
Technical field
The invention belongs to Geotechnical Engineering field, especially a kind of recyclable double-deck anchor pole.
Background technique
Anchor pole is the most basic component part of contemporary supporting, and the surrounding rock consolidation of side slope together, is made side slope itself by him
Supporting itself.Present anchor pole is in engineering technology, side slope, tunnel, and dam body carries out main body reinforcing.Anchor pole is as going deep into stratum
Tensional element, its one end are connect with engineering structure, and the other end gos deep into stratum, and whole anchor pole is divided into free segment and anchoring section,
Free segment refers to the region that the pulling force at anchor pole head is reached to anchoring body, and function is to apply prestressing force to anchor pole.
But anchor pole is usually disposable, anchored end generallys use gum material anchoring, in many gib side slopes
On, there is waste permanent anchor pole.
Chinese invention patent (publication number: CN101469541A, publication date: on July 1st, 2009) discloses a kind of recyclable
Anchor pole, support anchor rod open mode to open by spring thrust, and are single layer anchor pole, squeeze anchoring by spring force, simultaneously
The anchor rod anchored end needs slip casting.Structurally, the recoverable anchor rod by flexible cable, round anchor pole, round anchor pole, be less than
Some array structure compositions such as the auxiliary steel pipe of lower circular connector, structure is complicated, and free segment is one section of drag-line, and anchor force passes through
4 reaction plates provide, and reaction plate can be pierced into soil.
Summary of the invention
The technical problem to be solved by the present invention is a kind of recyclable double-deck anchor pole is provided, for there is anchor pole to remove demand
Engineering project, facilitate the disassembly of anchor pole and utilize again, at the same the anchor structure be not necessarily to end anchorage slip casting, facilitate construction,
Construction investment can be reduced.
Technical scheme is as follows:
A kind of recyclable double-deck anchor pole, including internal layer anchor pole, and the hollow outer layer anchor being flexibly connected with internal layer anchor pole
Bar；
The internal layer anchor surface is thread surface, and the outer layer anchor pole is slippery inner surface
The outer layer anchor pole can be moved along internal layer anchor surface, and outer layer anchor pole one end is to connect with internal layer spiral thread on anchor bolt
Locking nut, the outer layer anchor pole other end and one end of hinged steel disc stretching structure are hinged, the other end of hinged steel disc stretching structure
Pass through the expansion end defined position being located on internal layer anchor pole；
The hinged steel disc stretching structure includes several concatenated hinged steel disc units, is led between adjacent hinged steel disc unit
Lantern ring connection is crossed, lantern ring is slidably connected on internal layer anchor pole, and each hinged steel disc unit includes several hinged steel discs, hinged steel disc
One end and another hinged steel disc are hinged, and the other end is hinged with lantern ring.
The internal layer anchor pole is solid cylinder anchor pole, and the outer layer anchor pole is hollow circuit cylinder rod piece.
The hinged steel disc is isometric planar steel part.
As a kind of selection, several hinged steel discs of equal length are circular layout around internal layer anchor pole.
As a kind of selection, hinged steel disc equal length in the same hinged steel disc unit, different hinged steel disc units
Interior hinged steel disc length differs, the expanded angle difference or ruler of different units when can compensate the expansion of hinged steel disc stretching structure
Expansion outer diameter caused by very little difference is different, guarantees that hinged steel disc stretching structure expansion outer diameter is consistent.
It include four hinged steel discs in each hinged steel disc unit, and four hinged steel discs exist as a kind of selection
In same plane.
As a kind of selection, the hinged steel disc of different hinged steel disc units not in the same plane, so can be true
Protect hinged steel disc stretching structure and anchor hole have more supporting points (different units are different not in conplane contact point,
Supporting point is also just more).
A kind of anchoring process of the recyclable double-deck anchor pole, outer layer anchor pole are pushed along internal layer anchor pole, outer layer in pushing course
After the hinged steel disc stretching structure of anchor pole end is pushed, constraint of the middle part by axial movable lantern ring, bottom end is expanded
The constraint of big end, hinged steel disc stretching structure open, and hinged steel disc stretching structure opens rear support on the wall of a borehole, with locking
Nut is fixed, and the anchoring of screw rod is completed.After anchoring section is installed, anchor plate is installed in aperture, and carry out using bolt-nut
Aperture anchoring.
A kind of recovery method of the recyclable double-deck anchor pole, when needing to recycle anchor pole, bolt-nut of first dismantling removes anchoring
Plate unclamps locking nut, and along outer layer anchor pole is pulled out outside internal layer anchor pole, hinged steel disc stretching structure closure is attached to internal layer anchor pole wall
On, the contact with hole wall is released, anchoring is eliminated, and takes out anchor pole along drilling.
The present invention devises the double-deck anchor structure, and outer layer anchor pole can slide back and forth along internal layer anchor pole, wherein outer layer anchor pole
End uses the hinged steel disc stretching structure of articulated form, carries out pushing hinged steel disc stretching structure by outer layer anchor pole, makes to cut with scissors
The hinged steel disc for connecing form opens and supports to form anchored end, then screws locking nut, then applies spiral anchor head outside hole,
Then anchor bolt construction finishes.
When anchor pole to be removed, spiral anchor head is removed, locking nut is decontroled, pulls out outer layer anchor pole outside, be closed articulated structure, is solved
Except anchored end anchors, anchor pole is taken out, removes and completes.
Structure of the invention be it is a kind of facilitate construction, conducive to the recoverable anchor rod structure of disassembly, especially for there is dismounting
The application of demand.On the one hand, all rigid members of the present invention, structure is simple, and stress is clear, and outer bar is inside and outside wall light
Sliding hollow stem, on the other hand, the present invention are double-layer structure anchor pole, and the nut by outer layer anchor pole one end anchors, and opening mode is
Outer layer anchor pole, which is pushed, to be opened, and anchored end is not necessarily to slip casting by a series of steel disc and hole wall friction anchoring, and detachable recycling repeatedly makes
With, meanwhile, several hinged steel discs can be arranged around lantern ring, greatly enhance the anchor force that steel disc is pressed in soil, and steel disc
It is pressed on hole wall, is not pierced into soil.
Structure of the invention facilitates the disassembly of anchor pole, and anchor pole is facilitated to utilize again, while the structure is infused without end anchorage
Slurry constructs also extremely convenient, can substantially reduce construction investment.
Detailed description of the invention
Fig. 1 is present invention construction pre-structure schematic diagram；
Fig. 2 is structural schematic diagram after present invention construction；
Fig. 3 is utility structure schematic diagram of the present invention in side slope；
Fig. 4 is in Fig. 2 perpendicular to the schematic cross-section of anchor pole axis direction plane；
In figure, 1- outer layer anchor pole；2- internal layer anchor pole；3- hinge joint；The hinged steel disc of 4-；5- lantern ring；6- locking nut；7- anchor
Solid plate；8- bolt-nut；9- side slope face；10- anchor hole；11- expands end.
Specific embodiment
In the following, the present invention is further detailed in conjunction with attached drawing.
Such as Fig. 1 and Fig. 4, a kind of recyclable double-deck anchor pole, including the internal layer anchor pole 2 using solid cylinder anchor pole, and
The outer layer anchor pole 1 using hollow circuit cylinder rod piece being flexibly connected with internal layer anchor pole 2；Internal layer anchor pole 2 is surface thread surface；Outer layer
The hollow wall of anchor pole 1 is smooth, can move along the surface of internal layer anchor pole 2, and 1 one end of outer layer anchor pole is and 2 screw thread of internal layer anchor pole
The locking nut 6 of connection is simultaneously hinged in non-locking state, 1 other end of outer layer anchor pole and one end of hinged steel disc stretching structure
At contact 3, the other end of hinged steel disc stretching structure is expanded by 11 defined position of expansion end positioned at 2 end of internal layer anchor pole
Big end 11 is substantially the disc structure that can be rotated but cannot be moved forward and backward around internal layer anchor pole 2.The flexible knot of hinged steel disc
Structure includes 3 concatenated hinged steel disc units, is connected between adjacent hinged steel disc unit by lantern ring 5, and lantern ring 5 is substantially a circle
Ring has multiple hinge joints along its circumferential direction, and hinged with hinged steel disc 4 respectively, lantern ring 5 is slidably connected to the surface of internal layer anchor pole 2
On, each hinged steel disc unit includes 36 hinged steel discs 4, and hinged 4 one end of steel disc and another hinged steel disc 4 are hinged, the other end
It is hinged with lantern ring 5.Hinged steel disc 4 is isometric planar steel part, that is, has certain thickness strip steel disc.
Such as Fig. 2, outer layer anchor pole 1 is pushed, due to the other end of hinged steel disc stretching structure and the expansion of 2 end of internal layer anchor pole
End 11 cannot be hingedly moved forward and backward, thus the hinged steel disc 4 in multiple hinged steel disc units another along hinge rotate, steel disc to
Outer support.
As shown in figure 3, using anchor pole of the invention in the anchor hole 10 in side slope 9, pushed first by outer layer anchor pole 1
Hinged steel disc stretching structure makes the hinged steel disc stretching structure of articulated form support to form anchored end, then screws locking nut
6, then apply bolt-nut 8 outside anchor hole 10, anchor bolt construction finishes；When anchor pole to be removed, bolt-nut 8 is removed, is decontroled
Locking nut 6 pulls out outer layer anchor pole 1 outside, is closed articulated structure, releases anchored end anchoring, takes out anchor pole, removes and complete.
Claims (6)
1. a kind of recyclable double-deck anchor pole, it is characterised in that: including internal layer anchor pole (2), and even with internal layer anchor pole (2) activity
The hollow outer layer anchor pole (1) connect；
Internal layer anchor pole (2) surface is thread surface, and the outer layer anchor pole (1) is slippery inner surface；
The outer layer anchor pole (1) can be slided along the surface of internal layer anchor pole (2), and outer layer anchor pole (1) one end is and internal layer anchor pole (2)
The locking nut (6) of threaded connection, outer layer anchor pole (1) other end and one end of hinged steel disc stretching structure are hinged, hinged steel disc
The other end of stretching structure passes through expansion end (11) defined position on internal layer anchor pole (2)；
The hinged steel disc stretching structure includes several concatenated hinged steel disc units, passes through set between adjacent hinged steel disc unit
Ring (5) connection, lantern ring (5) are slidably connected on internal layer anchor pole (2), and each hinged steel disc unit includes several hinged steel discs (4),
Hingedly, the other end and lantern ring (5) are hinged for hinged steel disc (4) one end and another hinged steel disc (4).
2. a kind of recyclable double-deck anchor pole according to claim 1, it is characterised in that: the internal layer anchor pole (2) is real
Heart cylinder anchor pole, the outer layer anchor pole (1) are hollow circuit cylinder rod piece.
3. a kind of recyclable double-deck anchor pole according to claim 1, it is characterised in that: the hinged steel disc (4) be etc.
Long planar steel part.
4. a kind of anchoring process of the recyclable double-deck anchor pole as described in claim 1, it is characterised in that: outer layer anchor pole (1) edge
Internal layer anchor pole (2) push, after the hinged steel disc stretching structure of outer layer anchor pole (1) end is pushed in pushing course, middle part
By the constraint of axial movable lantern ring (5), bottom end is opened by the constraint for expanding end (11), hinged steel disc stretching structure,
Hinged steel disc stretching structure opens rear support on the wall of a borehole (10), is fixed with locking nut (6), completes the anchoring of screw rod.
5. anchoring process according to claim 4, it is characterised in that: after anchoring section is installed, installs and anchor in aperture
Plate (7), and aperture anchoring is carried out using bolt-nut (8).
6. a kind of recovery method of anchor pole as described in claim 1 recyclable double-deck, it is characterised in that: when needing to recycle anchor pole
When, bolt-nut of first dismantling (8) is removed anchor plate (7), is unclamped locking nut (6), pulls out outer layer anchor outside along internal layer anchor pole (2)
Bar (1), hinged steel disc stretching structure closure, is attached on internal layer anchor pole (2) wall, releases and eliminates with the contact of hole wall (10), anchoring,
Anchor pole is taken out along drilling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810736822.4A CN108951617A (en) | 2018-07-06 | 2018-07-06 | Recoverable double-layer anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810736822.4A CN108951617A (en) | 2018-07-06 | 2018-07-06 | Recoverable double-layer anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108951617A true CN108951617A (en) | 2018-12-07 |
Family
ID=64482229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810736822.4A Pending CN108951617A (en) | 2018-07-06 | 2018-07-06 | Recoverable double-layer anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108951617A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306697A (en) * | 2018-12-13 | 2019-02-05 | 辽宁工程技术大学 | A kind of shuttle shape contraction type anchor structure and its application method |
| CN110469353A (en) * | 2019-08-14 | 2019-11-19 | 四川大学 | Mechanical prestressed anchor and its installation and recovery method can be recycled in one kind |
| CN111997048A (en) * | 2020-07-03 | 2020-11-27 | 中北大学 | Multifunctional recyclable anchor rod |
| CN112792121A (en) * | 2020-11-25 | 2021-05-14 | 宁波城市阳光环境建设工程有限公司 | Mine ecological restoration method applying mycorrhiza technology |
| CN114165063A (en) * | 2021-10-26 | 2022-03-11 | 山东高速工程建设集团有限公司 | Tool and method for quickly positioning and adjusting precast beam component |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892852A (en) * | 2010-07-30 | 2010-11-24 | 陈洪凯 | Self-anchored emergency anchor rod and installation method thereof |
| US20110250022A1 (en) * | 2009-03-02 | 2011-10-13 | Robertson Jr Roy Lee | Roof bolt anchor with camming element |
-
2018
- 2018-07-06 CN CN201810736822.4A patent/CN108951617A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110250022A1 (en) * | 2009-03-02 | 2011-10-13 | Robertson Jr Roy Lee | Roof bolt anchor with camming element |
| CN101892852A (en) * | 2010-07-30 | 2010-11-24 | 陈洪凯 | Self-anchored emergency anchor rod and installation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306697A (en) * | 2018-12-13 | 2019-02-05 | 辽宁工程技术大学 | A kind of shuttle shape contraction type anchor structure and its application method |
| CN110469353A (en) * | 2019-08-14 | 2019-11-19 | 四川大学 | Mechanical prestressed anchor and its installation and recovery method can be recycled in one kind |
| CN110469353B (en) * | 2019-08-14 | 2024-05-28 | 四川大学 | Recyclable mechanical prestress anchor rod and mounting and recycling method thereof |
| CN111997048A (en) * | 2020-07-03 | 2020-11-27 | 中北大学 | Multifunctional recyclable anchor rod |
| CN111997048B (en) * | 2020-07-03 | 2021-09-17 | 中北大学 | Multifunctional recyclable anchor rod or anchor cable |
| CN112792121A (en) * | 2020-11-25 | 2021-05-14 | 宁波城市阳光环境建设工程有限公司 | Mine ecological restoration method applying mycorrhiza technology |
| CN114165063A (en) * | 2021-10-26 | 2022-03-11 | 山东高速工程建设集团有限公司 | Tool and method for quickly positioning and adjusting precast beam component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |
|
| RJ01 | Rejection of invention patent application after publication |