CN206706752U - One kind expansion breaks formula recoverable anchor rod - Google Patents
One kind expansion breaks formula recoverable anchor rod Download PDFInfo
- Publication number
- CN206706752U CN206706752U CN201720546078.2U CN201720546078U CN206706752U CN 206706752 U CN206706752 U CN 206706752U CN 201720546078 U CN201720546078 U CN 201720546078U CN 206706752 U CN206706752 U CN 206706752U
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- China
- Prior art keywords
- hollow lever
- seal
- mobile bar
- crushing block
- hollow
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Abstract
One kind expansion breaks formula recoverable anchor rod,Anchor pole includes anchorage head,Hollow lever and mobile bar,Anchorage head is installed in the borehole after being fixedly connected with the front end of hollow lever,The inside of hollow lever front end is sequentially provided with the seal I for containing water,Contain the seal II and crushing block of expanding cement,The front end of mobile bar is stretched into hollow lever,The front end of mobile bar is provided with sharp portion and limited block,Mobile bar is in hollow lever in moving process,Limited block, which can press, to be set and drives crushing block to be moved to the preceding extreme direction of hollow lever,After sharp portion is passed through the centrally disposed through hole of crushing block,Sharp portion punctures seal II and seal I successively,The bulbs of pressure that water reacts with expanding cement break hollow lever,So as to realize the recovery of anchor pole,Rock mass internal residual is anchorage head and breakable PVC sleeve pipes,Without prejudice to the land use in later stage.The utility model apparatus structure is simple and convenient to operate, have save material, beneficial to environmental protection the advantages of.
Description
Technical field
It the utility model is related to a kind of anchor pole of Geotechnical Engineering field of reinforcement, and in particular to it is recyclable that one kind expansion breaks formula
Anchor pole.
Background technology
With economic and society development, the engineering technology such as the mining engineering in China, Tunnel Engineering, slope treatment achieves
Significant progress.In these engineerings, through reinforcing country rock, stable side slope and supporting foundation pit, bolt anchorage skill frequently with anchor pole
Art has become a kind of important support pattern of Construction of Civil Engineering.The anchor pole largely used now uses permanent anchorage mode,
Conventional anchor pole is as disposable consumable material, few utilization and recycle, and the not recuperability after bolt anchorage also brings a series of
Social concern, with taking place frequently for the events such as land used anxiety, environmental protection, this problem is further prominent.At present, people are to anchor pole
Underground environment influence problem increasingly pay close attention to, forbidden anchor pole if Hong Kong（Or anchor cable）Surmount red line in pattern foundation pit supporting structure
Scope；The anchor pole for laneway coal mining supporting left can also bring potential safety hazard.
In view of the above-mentioned problems, simultaneously, mine lasting exploit is vigorously advocated in country, to have to energy-saving and emission-reduction specifically
Ask, many Geotechnical Engineering personnel and scholar are made that exploration in recoverable of anchor pole etc., current recyclable anchor
Bar is divided into resin anchoring, mechanical anchor and friction anchoring, and resin anchoring is mainly used in the construction in short tunnel, mechanical anchor pair
Construction process requirement is higher, and anchor force is low, easily causes anchor pole slip failure；Friction anchoring easily becomes with surrouding rock deformation
Shape, and its recovery difficult is larger.Prior art to enter anchor pole linkage section there is also slurry, increase frictional resistance, is not easily recycled, residual
The problems such as staying metallic pollution environment.Therefore, it is necessary to develop the recoverable anchor rod system that a kind of probability of recycling success is high, environment influence is small
System.
Utility model content
The utility model is in order to overcome problems of the prior art, there is provided a kind of expansion of high-efficiency environment friendly breaks formula can
Reclaim anchor pole.
The utility model is that technical scheme is used by solving the above problems：One kind expansion breaks formula recoverable anchor rod,
Anchor pole includes anchorage head, hollow lever and mobile bar, and anchorage head is installed in the borehole after being fixedly connected with the front end of hollow lever,
The tail end of hollow lever is fixed on the country rock outside drilling, wherein, the inside of hollow lever front end is sequentially provided with seal I, close
Envelope body II and crushing block, seal I are disposed adjacent with anchorage head, and water is contained in seal I, swelling water is contained in seal II
Mud；The front end of mobile bar is stretched into hollow lever through the tail end of hollow lever, and the front end of mobile bar is provided with sharp portion, mobile
The front end of bar is also arranged with limited block, and in hollow lever in moving process, limited block can press to be set and drive extruding mobile bar
Block moves to the preceding extreme direction of hollow lever, and after sharp portion is passed through the centrally disposed through hole of crushing block, sharp portion punctures successively
Seal II and seal I, the bulbs of pressure that water reacts with expanding cement break hollow lever.
In the utility model, the front end of hollow lever is provided with connection internal thread, the end of anchorage head is provided be connected with this in
Screw thread connection external screw thread in mating connection.
The length of the body of rod of connection internal thread is provided with as the improvement of above-mentioned technical proposal, in hollow lever not less than hollow
The 75% of body of rod total length.
As the improvement of above-mentioned technical proposal, the rounded structure of crushing block, and the outer peripheral face of crushing block is provided with and hollow stem
Body connects internal thread connection external screw thread in mating connection；The wall of through hole on sharp portion and on crushing block, which is provided with, to match
The retaining face of connection is closed, enables to pass through spine from hollow lever tail end to its preceding extreme direction precession or the mobile bar reversely screwed out
Portion drives crushing block precession or reversely back-out inside hollow lever.
Preferably, retaining face is polygon facet or shaped face.
Preferably, the mass ratio of water and expanding cement is 1：3.
In the utility model, the position of the cylindrical corresponding seal I in hollow lever front end or seal II is recessed provided with annular
Groove.
In the utility model, the outer peripheral face of anchorage head is evenly equipped with some zigzag hangnails；Hollow lever is coated with PVC
Sleeve pipe, the internal diameter of PVC sleeve pipes are more than the external diameter of hollow lever.
In the utility model, the tail end of hollow lever is provided with the anchor pier being fixed on outside country rock, the hollow stem outside anchor pier
Cushion block and lock nut are installed on body；Wherein, the tail end for stretching out the mobile bar of hollow lever is vertically connected with rocking bar, on rocking bar
It is vertically connected with handrail.
Beneficial effect：In the utility model, the front end of anchorage head is provided with hangnail, enables front end and the drilling of anchorage head
Hole wall is closely engaged, the contact area of increase anchor pole and the palisades that drill；The tail end of anchorage head is provided with anchor pier, cushion block and locking spiral shell
Mother, carry out anchor rod drawing anchoring.
Hollow lever is coated with PVC sleeve pipes, and the slurry for making hollow lever and being injected in drilling is isolated, and avoids slurry from making
Into the pollution of recyclable hollow lever.
The body of rod of anchor pole is arranged to hollow structure by the utility model, and the inside of hollow lever is provided with internal thread, anchoring
External screw thread is set on head, the connecting length of anchorage head and hollow lever can be adjusted, reaches the anchor rod anchored intensity size of adjustment
Purpose.
Wherein, annular groove is correspondingly arranged with seal I or seal II, ensure that the hydration reaction of water and expanding cement
Expansive force afterwards can be broken hollow lever, ensure the reliable recovery of the anchor pole；Extruding is driven using the sharp portion of mobile bar
Synchronous precession or the back-out inside hollow lever of block, in recovery, mobile bar precession, after sharp portion punctures seal II, extruding
Block, which continues precession, makes thorn portion puncture seal I, by the water and the hydration reaction of expanding cement in expansion space, forms turgor pressure
Power thrusts hollow lever along its annular groove position；Back-out makes, and inverts mobile bar, precession and the whole process screwed out
The anchorage effect of anchor pole, dependable performance are not influenceed；Wherein, anchorage head is retained in rock mass, and hollow lever is recycled；
Due to setting internal thread in hollow lever, the hollow lever after recovery can continue as anchor pole to make after being connected with new anchorage head
With.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model；
Fig. 2 is the right view of crushing block in Fig. 1；
Fig. 3 and Fig. 4 is other forms of implementation of crushing block；
Fig. 5 is the right view of anchorage head in Fig. 1.
Reference：1st, drill, 2, anchorage head, 3, hollow lever, 4, mobile bar, 5, seal I, 6, seal II, 7,
Crushing block, 70, through hole, 8, sharp portion, 9, limited block, 10, connection internal thread, 11, connection external screw thread, 12, retaining face, 13, ring
Connected in star, 14, hangnail, 15, PVC sleeve pipes, 16, anchor pier, 17, cushion block, 18, lock nut, 19, Grouting Pipe, 20, rocking bar, 21, help
Hand.
Embodiment
Technological means, creation characteristic and the purpose reached to realize the utility model readily appreciate, with reference to
Schematic diagram, the utility model is expanded on further, but the utility model scope claimed is not limited to specific embodiment party
Scope described in formula.
One kind expansion breaks formula recoverable anchor rod, as shown in figure 1, anchor pole includes anchorage head 2, hollow lever 3 and mobile bar
4, anchorage head 2 is arranged in drilling 1 after being fixedly connected with the front end of hollow lever 3, and the tail end of hollow lever 3 is fixed on drilling 1
On outer country rock, wherein, the outer peripheral face of anchorage head 2 is evenly equipped with some zigzag hangnails 14；Hollow lever 3 is coated with PVC
Sleeve pipe 15, the internal diameter of PVC sleeve pipes 15 are more than the external diameter of hollow lever 3；The tail end of hollow lever 3 is provided with the anchor being fixed on outside country rock
Pier 16, cushion block 17 and lock nut 18 are installed on the hollow lever 3 outside anchor pier 16；Wherein, the shifting of hollow lever 3 is stretched out
The tail end of lever 4 is vertically connected with rocking bar 20, and handrail 21 is vertically connected with rocking bar 20.
The inside of the front end of hollow lever 3 is sequentially provided with seal I 5, seal II 6 and crushing block 7, seal I 5 and anchoring
First 2 are disposed adjacent, splendid attire water in seal I 5, splendid attire expanding cement in seal II 6, and the mass ratio of water and expanding cement is 1：
3。
The front end of mobile bar 4 is stretched into hollow lever 3 through the tail end of hollow lever 3, and the front end of mobile bar 4 is provided with point
Thorn portion 8, the front end of mobile bar 4 are also arranged with limited block 9, and for mobile bar 4 in hollow lever 3 in moving process, limited block 9 can
Pressure sets and drives crushing block 7 to be moved to the preceding extreme direction of hollow lever 3, makes sharp portion 8 through the centrally disposed through hole of crushing block 7
After 70, sharp portion 8 punctures seal II 6 and seal I 5, the cylindrical corresponding seal I 5 in the front end of hollow lever 3 or sealing successively
The position of body II 6 is provided with annular groove 13, and water and the bulbs of pressure of expanding cement reaction make hollow lever 3 along annular groove 13
Position is broken.
Anchorage head 2 is with the mode that is fixedly connected of hollow lever 3：The front end of hollow lever 3 is provided with connection internal thread 10, anchor
Gu first 2 end is provided with is connected the connection external screw thread in mating connection of internal thread 10 with this.
To make the hollow lever after recovery can continue to utilize, it is preferred that be provided with connection internal thread 10 in hollow lever 3
The length of the body of rod is not less than the 75% of the total length of hollow lever 3.
Wherein, 9 rounded structure of limited block, and the external diameter of limited block 9 is no more than the connection internal thread 10 of hollow lever 3
Minimum diameter；7 rounded structure of crushing block, and the outer peripheral face of crushing block 7 is provided with and matched with the connection internal thread 10 of hollow lever 3
Close the connection external screw thread of connection；The wall of through hole 70 on sharp portion 8 and on crushing block 7 is provided with retaining in mating connection
Face, enable to drive by sharp portion 8 from the tail end of hollow lever 3 to its preceding extreme direction precession or the mobile bar 4 reversely screwed out and squeeze
Briquetting 7 screws out in the inside precession of hollow lever 3 or reversely；Retaining face 12 is polygon facet or shaped face.Wherein, Fig. 2 is enumerated
Through hole 70 is square hole, and retaining face is four corners of square hole；The through hole 70 that Fig. 3 is enumerated is hexagonal hole, and retaining face is hexagon
Six corners in hole；The through hole 70 that Fig. 4 is enumerated is irregularly-shaped hole, and retaining face is the special-shaped arris of irregularly-shaped hole.According to actual conditions, lead to
Hole will not be repeated here it can also be provided that the hole with other arris structures.
The construction method of anchor pole of the present utility model is：
（1）, in the inside of the front end of hollow lever 3 be put into crushing block 7, and seal I 5 and seal II 6 are sequentially placed into
The inside of the front end of hollow lever 3, makes seal II 6 be disposed adjacent with crushing block 7；
（2）, anchorage head 5 is fixedly connected with the front end of hollow lever 3 after, by the brill that sets in advance of the anchor pole made push-in
In hole 1, Grouting Pipe 19 is deeply drilled 1 bottom slip casting, after slurries and country rock consolidation, the fixed structure outside anchor pole is installed,
Carry out anchor rod drawing anchoring；
（3）, after anchor pole complete reinforcing task after, the mobile bar 4 with sharp portion 8 is inserted into hollow lever 3, sharp portion 8
Seal II 6 and seal I 5 are penetrated successively, meanwhile, mobile bar 4 drives the synchronizing moving of crushing block 7, makes crushing block 7, hollow stem
Closed expansion space is formed between body 3 and anchorage head 2；
（4）, after the water in the expanding cement in seal II 6 and seal I 5 acts on, the bulbs of pressure cause hollow stem
Body 3 is pressed down, and realizes the recovery of anchor pole.
Specific embodiment：
A kind of expansion of the present utility model, which breaks formula recoverable anchor rod, includes anchorage head 2 and the two parts of hollow lever 3, anchors
First 2 be that outer surface sets hangnail 14, termination to be provided with the externally threaded column structure of connection, and hollow lever 3 is set in connection to be internal
The Hollow circular beam of screw thread 10, outside cladding PVC sleeve pipes 15, anchorage head 2 are connected to form anchor pole with hollow lever 3 by internal and external threads
Overall structure.The inside of hollow lever 3 is connected side with anchorage head 2 and has set gradually water, expanding cement and crushing block 7, described
Water and expanding cement are wrapped up using rigid plastics, and the centrally disposed square precession sets of holes of described crushing block 7, cylindrical be provided with connect outside
Screw thread.Annular groove 13 is carved with the cylindrical upper and expanding cement corresponding position of hollow lever 3, and the bulbs of pressure exist hollow lever 3
Broken at annular groove 13.By the realization that is pressed into of mobile bar 4, the head of mobile bar 4 is pointed cone, bar for the mixing of expanding cement and water
Body section is the limited block 9 that square, outside weldings have circle.
The construction method of the anchor pole comprises the following steps：The PVC sleeve pipe 15 bigger than its diameter is arranged on hollow lever 3,
And in the side hot-melting sealed of anchorage head 2, anchor pier 16 made of opposite side casting concrete；
The precession crushing block 7 in the hollow lever 3 of the side of anchorage head 2, by rigid plastics sealing expanding cement and water according to
It is secondary to be put into inside hollow lever 3, hollow lever 3 and anchorage head 2 are connected and screwed；
By in the drilling 1 that sets in advance of the anchor pole made push-in, Grouting Pipe 19 is deeply drilled 1 bottom slip casting, waits to starch
Liquid is with after country rock consolidation, installing the cushion block 17 and lock nut 18 outside anchor pole, carrying out anchor rod drawing anchoring；
After anchor pole completes reinforcing task, the mobile bar 4 with sharp portion 8 is inserted into hollow lever 3, sharp portion 8 is successively
Expanding cement and watertight envelope are penetrated, meanwhile, mobile bar 4 drives the precession of crushing block 7, forms closed expansion space；Work as swelling water
After mud fully acts on water, the bulbs of pressure cause hollow lever 3 to be broken at the seam of annular groove 13, so as to realize returning for anchor pole
Receive, rock mass internal residual is anchorage head and breakable PVC sleeve pipes, without prejudice to the land use in later stage.The utility model fills
Put it is simple in construction, easy to operate, have save material, beneficial to environmental protection the advantages of.
Claims (9)
1. one kind expansion breaks formula recoverable anchor rod, it is characterised in that：Anchor pole includes anchorage head, hollow lever and mobile bar, anchor
Gu head is installed in the borehole after being fixedly connected with the front end of hollow lever, the tail end of hollow lever is fixed on the country rock outside drilling
On, wherein, the inside of hollow lever front end is sequentially provided with seal I, seal II and crushing block, seal I and anchorage head phase
Neighbour is set, and water is contained in seal I, expanding cement is contained in seal II；The front end of mobile bar passes through the tail end of hollow lever
Stretch into hollow lever, and the front end of mobile bar is provided with sharp portion, the front end of mobile bar is also arranged with limited block, and mobile bar is in
In the empty body of rod in moving process, limited block, which can press, to be set and drives crushing block to be moved to the preceding extreme direction of hollow lever, makes spine
After portion passes through the centrally disposed through hole of crushing block, sharp portion punctures seal II and seal I successively, and water reacts with expanding cement
The bulbs of pressure break hollow lever.
2. a kind of expansion according to claim 1 breaks formula recoverable anchor rod, it is characterised in that：The front end of hollow lever is set
There is connection internal thread, the end of anchorage head is provided with is connected internal thread connection external screw thread in mating connection with this.
3. a kind of expansion according to claim 2 breaks formula recoverable anchor rod, it is characterised in that：The company of being provided with hollow lever
The length for connecing the body of rod of internal thread is not less than the 75% of hollow lever total length.
4. a kind of expansion according to claim 2 breaks formula recoverable anchor rod, it is characterised in that：The rounded knot of crushing block
Structure, and the outer peripheral face of crushing block is provided with the connection external screw thread in mating connection with the connection internal thread of hollow lever；On sharp portion
Retaining face in mating connection is provided with the wall of the through hole on crushing block, makes to revolve from hollow lever tail end to its preceding extreme direction
The mobile bar entered or reversely screwed out can drive crushing block precession or reversely back-out inside hollow lever by sharp portion.
5. a kind of expansion according to claim 4 breaks formula recoverable anchor rod, it is characterised in that：Retaining face is polygon facet
Or shaped face.
6. a kind of expansion according to claim 1 breaks formula recoverable anchor rod, it is characterised in that：The matter of water and expanding cement
Amount is than being 1：3.
7. a kind of expansion according to claim 1 breaks formula recoverable anchor rod, it is characterised in that：Hollow lever front end is cylindrical
The position of upper corresponding seal I or seal II is provided with annular groove.
8. a kind of expansion according to claim 1 breaks formula recoverable anchor rod, it is characterised in that：The outer peripheral face of anchorage head is equal
It is furnished with some zigzag hangnails；Hollow lever is coated with PVC sleeve pipes, and the internal diameter of PVC sleeve pipes is more than the external diameter of hollow lever.
9. a kind of expansion according to claim 1 breaks formula recoverable anchor rod, it is characterised in that：The tail end of hollow lever is set
There is the anchor pier being fixed on outside country rock, cushion block and lock nut are installed on the hollow lever outside anchor pier；Wherein, stretch out hollow
The tail end of the mobile bar of the body of rod is vertically connected with rocking bar, and handrail is vertically connected with rocking bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720546078.2U CN206706752U (en) | 2017-05-17 | 2017-05-17 | One kind expansion breaks formula recoverable anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720546078.2U CN206706752U (en) | 2017-05-17 | 2017-05-17 | One kind expansion breaks formula recoverable anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206706752U true CN206706752U (en) | 2017-12-05 |
Family
ID=60464348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720546078.2U Expired - Fee Related CN206706752U (en) | 2017-05-17 | 2017-05-17 | One kind expansion breaks formula recoverable anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206706752U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968247A (en) * | 2017-05-17 | 2017-07-21 | 洛阳理工学院 | One kind expansion breaks formula recoverable anchor rod and its construction method |
| CN108374680A (en) * | 2018-03-12 | 2018-08-07 | 中国矿业大学 | A kind of single hole is double to anchor assembled bolt and application method |
| CN112664246A (en) * | 2020-12-19 | 2021-04-16 | 山东新升实业发展有限责任公司 | Rock anchor rod for advance support and construction method |
-
2017
- 2017-05-17 CN CN201720546078.2U patent/CN206706752U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968247A (en) * | 2017-05-17 | 2017-07-21 | 洛阳理工学院 | One kind expansion breaks formula recoverable anchor rod and its construction method |
| CN106968247B (en) * | 2017-05-17 | 2022-08-19 | 洛阳理工学院 | Expansion pressure-breaking type recyclable anchor rod and construction method thereof |
| CN108374680A (en) * | 2018-03-12 | 2018-08-07 | 中国矿业大学 | A kind of single hole is double to anchor assembled bolt and application method |
| CN112664246A (en) * | 2020-12-19 | 2021-04-16 | 山东新升实业发展有限责任公司 | Rock anchor rod for advance support and construction method |
| CN112664246B (en) * | 2020-12-19 | 2022-07-08 | 山东新升实业发展有限责任公司 | Rock anchor rod for advance support and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20190517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |