CN106958450A - A kind of steel tendon anchor pole and its construction method for being used to reinforce weak surrounding rock - Google Patents
A kind of steel tendon anchor pole and its construction method for being used to reinforce weak surrounding rock Download PDFInfo
- Publication number
- CN106958450A CN106958450A CN201710347144.8A CN201710347144A CN106958450A CN 106958450 A CN106958450 A CN 106958450A CN 201710347144 A CN201710347144 A CN 201710347144A CN 106958450 A CN106958450 A CN 106958450A
- Authority
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- China
- Prior art keywords
- support wire
- section
- steel wire
- anchor pole
- anchor
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 86
- 239000010959 steel Substances 0.000 title claims abstract description 86
- 239000011435 rock Substances 0.000 title claims abstract description 53
- 210000002435 tendon Anatomy 0.000 title claims abstract description 33
- 238000010276 construction Methods 0.000 title claims abstract description 12
- 238000004873 anchoring Methods 0.000 claims abstract description 49
- 238000005553 drilling Methods 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 6
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 238000007569 slipcasting Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000011083 cement mortar Substances 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 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
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A kind of steel tendon anchor pole and its construction method for being used to reinforce weak surrounding rock, the anchor pole includes anchor head and the body of rod, the front end of the body of rod is stretched into the drilling of country rock, the tail end of the body of rod is connected with anchor head, the described body of rod is made up of anchoring section and free segment, the anchoring section that anchoring section is sequentially connected including several, and each anchoring section includes rigid support wire device, Shu Jie and multi beam steel wire, multi beam steel wire is passed through after rigid support wire device, and the two ends of steel wire carry out colligation by beam section；Free segment is freely saved including what several were sequentially connected, and each is freely saved include elastic support wire device, Shu Jie and multi beam steel wire, and multi beam steel wire is passed through after elastic support wire device, and the two ends of steel wire carry out colligation by beam section；Wherein, the tail end of anchoring section is connected with the front end freely saved, and the tail end freely saved is connected with anchor head.In the anchor pole course of work, soft rock large deformation promotes the elastic support wire device of anchor rod body extruding, increases rock-bolt length, discharges surrouding rock stress, completes the reinforcing task of weak surrounding rock.
Description
Technical field
The present invention relates to the anchor pole of Geotechnical Engineering field of reinforcement, and in particular to a kind of steel wire for being used to reinforce weak surrounding rock
Beam anchor pole and its construction method.
Background technology
In the field of engineering technology such as Tunnel Engineering, base pit engineering, Hydraulic and Hydro-Power Engineering, using Surrounding Rock Supported by Bolt be through
Frequently with method.With the increase of Underground Engineering Excavation depth, the geological conditions that bolt anchorage faces also becomes increasingly complex, such as
The phenomenon of weak surrounding rock large deformation easily occurs for deep wall rock tunnel, causes pull-out or the tensile failure model of anchor pole, causes surrounding rock consolidation
Failure.Weak surrounding rock generally refers to that low intensity, porosity are big, degree of consolidation is poor, by construction face cutting and weathering influenceed significantly or
Contain the loose, scattered, soft of a large amount of swelling wall rocks, incompetent beds.It is big that country rock easily occurs under high-ground stress effect for this kind of rock stratum
Deformation, meets water and easily softens, cause country rock along weak structural face slump.Therefore, it need to be examined using bolt anchorage under the geological conditions
The problem of considering country rock large deformation, namely anchor pole should also possess preferable deformation performance while country rock is reinforced, with suitable for surrounding rock
The requirement of Stress Release.
At present, lot of domestic and international scholar and engineers and technicians are studied and showed to the large deformation anchor rod for reinforcing soft rock
Field application, such as patent CN201210139092.2 provides a kind of constant resistance and large deformation anchor rod, and this method uses tapered rod and sleeve
Relative slip realize the increase of body of rod length, patent CN201210021633.1, which is provided, a kind of to be increased resistance and allows pressure large deformation anchor
Bar, this method realizes the increase of body of rod length by sleeve with the relative motion of sliding key.Above-mentioned large deformation anchor rod is in certain journey
Meet the requirement of country rock large deformation on degree, but there is also complex structure, resistance is not enough, cost of installation and use is high the shortcomings of.
The content of the invention
It is an object of the invention to provide a kind of steel tendon anchor pole and its construction method for being used to reinforce weak surrounding rock, Neng Gouman
The requirement of sufficient soft rock large deformation.
The technical scheme that is used to achieve the above object of the present invention for：A kind of steel tendon anchor for being used to reinforce weak surrounding rock
Bar, the anchor pole includes anchor head and the body of rod, and the front end of the body of rod is stretched into the drilling of country rock, and the tail end of the body of rod is connected with anchor head, described
The body of rod be made up of anchoring section and free segment, the anchoring section that anchoring section is sequentially connected including several, each anchoring section includes
Rigid support wire device, Shu Jie and multi beam steel wire, multi beam steel wire are passed through after rigid support wire device, and the two ends of steel wire are tied up by beam section
Prick；Free segment is freely saved including what several were sequentially connected, and each freely saves include elastic support wire device, Shu Jie and multi beam steel
Silk, multi beam steel wire is passed through after elastic support wire device, and the two ends of steel wire carry out colligation by beam section；Wherein, anchoring section tail end with from
By the front end connection saved, the tail end freely saved is connected with anchor head.
Wherein, described anchoring section at least two, the connection end of two neighboring anchoring section shares a Shu Jie, and each anchor
Admittedly the steel wire saved is the overall structure of continuity.
Wherein, described freely save is at least three, and the two neighboring connection end freely saved shares a Shu Jie, and each
It is the overall structure continued by the steel wire saved.
Wherein, lubricant grease is coated with the described body of rod, described free segment is arranged with before PVC sleeve pipes, PVC sleeve pipes
The Shu Jie with anchoring section front end is held to be tightly connected, the end of PVC sleeve pipes is slidably located on anchor head.
Wherein, described rigid support wire device includes some support wire rings being arranged concentrically, and each support wire ring passes through arranged in a crossed manner
Floor is connected as one, and the outer rim of support wire ring is evenly equipped with each through hole on the through hole for wearing steel wire, same support wire ring
It is centrally located on the circumference being arranged concentrically with the support wire ring.
It is preferred that, the spaced radial that described support wire ring is at least between three, two neighboring support wire ring is identical.
Wherein, described elastic support wire device includes rubber ring, and the outer rim of rubber ring is evenly equipped with the orientation that steel wire is set for card
Groove, the center of rubber ring is provided with telescopic cavity I.
It is preferred that, the outer rim of telescopic cavity I is evenly equipped with multiple sawtooth, and is evenly equipped with the rubber ring outside telescopic cavity I whole
Multiple telescopic cavities II that body is set in a ring, the V-shaped structure on the rip cutting section of rubber ring of telescopic cavity II, and each telescopic cavity II
Do not connect mutually.
In the present invention, described Shu Jiewei reinforcing bar ring colligation sections.
A kind of construction method for being used to reinforce the steel tendon anchor pole of weak surrounding rock, the construction method comprises the following steps：
Step 1: by multi beam steel wire smooth out with the fingers directly, align, be set to isometric, in the beam section ring colligation of steel wire one end, form steel wire
Beam；
Step 2: making steel tendon uniformly across rigid support wire device, another beam combination section is set wearing a side, anchoring section is formed；
Step 3: the operation of repeat step one and step 2, sets no less than two anchoring sections；
Step 4: by steel tendon uniformly across elastic support wire device, and in the beam section ring colligation of steel tendon both sides, repeat the step
Suddenly, set and freely saved no less than three；
Step 5: by the steel tendon colligation of free segment tail end into bar, form anchor head, the coating lubricating oil fat on the body of rod, and from
By being arranged PVC sleeve pipes in section, the two ends of PVC sleeve pipes on the Shu Jie of free segment front end and end, form anchor by galvanized wire colligation
Bar；
Step 6: being put into complete anchor pole is made in the drilling of the country rock set in advance, anchored, bored by Grouting Pipe slip casting
It is provided for fixing the anchor pier and nut of anchor head outside hole, carries out anchor rod drawing anchoring.
Beneficial effect：1st, the present invention is passed through after rigidity or elastic support wire device using multi beam steel wire, and end is carried out by beam section
Colligation, steel tendon is formed the thin ends and thick middle structure of similar " shuttle-type ", increase contact of the body of rod with cement mortar
Area, enhances the anchor force of anchor pole.
2nd, in the anchor pole course of work, soft rock large deformation makes the body of rod of anchor pole extrude elastic support wire device, elastic support wire device quilt
Compress after contraction distortion, the length of the free segment of the body of rod increases, and increases the length of anchor pole, discharges surrouding rock stress, complete weak
The reinforcing of country rock, meets the requirement of soft rock large deformation.
3rd, anchoring section at least two, freely saves and is at least three, it is ensured that the anchoring strength of the body of rod；And the free segment of the body of rod
PVC sleeve pipes are arranged with outside, isolate free segment and the slurry of injection in drilling, it is to avoid slurry causes the bonding of free segment, enters
And the situation for causing free segment elastic telescopic to fail.
4th, multi beam steel wire passes through support wire ring, anchoring section is had the anchoring section of multilayer steel wire formation, after slip casting, " shuttle-type "
The steel tendon scattered in structure increases anchoring section and the active area of cement mortar, enhances anchor-holding force of anchor bolt, it is to avoid anchor pole
It is drawn out in the course of the work.
5th, the inside of rubber ring is provided with telescopic cavity I, and the outer rim of telescopic cavity I is evenly equipped with the telescopic cavity II being serrated, anchor pole
Pulling force is incrementally increased with weak surrounding rock deformation, and telescopic cavity I and telescopic cavity II shrink compression successively, increase body of rod length, simultaneously
It is released surrouding rock stress.
Brief description of the drawings
Fig. 1 is anchor bolt construction schematic diagram of the present invention；
Fig. 2 is the schematic diagram in Fig. 1 along line A-A；
Fig. 3 is the rip cutting profile in Fig. 1 along line B-B.
Reference：1st, anchor head, 2, anchoring section, 20, anchoring section, 3, free segment, 30, freely save, 4, rigidity support wire device,
40th, support wire ring, 41, floor, 5, elastic support wire device, 50, rubber ring, 51, guide slot, 52, telescopic cavity I, 53, telescopic cavity II, 6,
Shu Jie, 7, steel wire, 8, PVC sleeve pipes, 9, anchor pier, 10, nut, 11, drilling.
Embodiment
To readily appreciate the technological means of the invention realized, creation characteristic and the purpose reached, with reference to signal
Figure, is expanded on further the present invention, but scope of the present invention is not limited to described in embodiment
Scope.
A kind of steel tendon anchor pole for being used to reinforce weak surrounding rock, the anchor pole includes being coated with profit on anchor head 1 and the body of rod, the body of rod
Lubricating oil fat, the front end of the body of rod is stretched into the drilling 11 of country rock, and the tail end of the body of rod is connected with anchor head 1, as shown in figure 1, described bar
Body is made up of anchoring section 2 and free segment 3, and free segment 2 is arranged with PVC sleeve pipes 8.
As shown in figure 1, the anchoring section 20 that anchoring section 2 therein is sequentially connected including several, each anchoring section 20 is wrapped
Rigid support wire device 4, Shu Jie and multi beam steel wire are included, multi beam steel wire is passed through after rigid support wire device 4, and the two ends of steel wire are carried out by beam section
Colligation；As shown in Fig. 2 rigid support wire device 4 includes some support wire rings 40 being arranged concentrically, each support wire ring 40 is by arranged in a crossed manner
Floor 41 is connected as one, and the outer rim of support wire ring 40 is evenly equipped with each on the through hole for wearing steel wire, same support wire ring 40
Through hole is centrally located on the circumference being arranged concentrically with the support wire ring.It is preferred that, support wire ring 40 is at least three, two neighboring support
Spaced radial between silk ring 40 is identical.
As shown in figure 1, free segment 3 therein freely saves 30 including what several were sequentially connected, each freely save 30 and wrap
Elastic support wire device 5, Shu Jie and multi beam steel wire are included, multi beam steel wire is passed through after elastic support wire device 5, and the two ends of steel wire are carried out by beam section
Colligation；As shown in figure 3, elastic support wire device 5 includes rubber ring 50, the outer rim of rubber ring 50 is evenly equipped with the orientation that steel wire is set for card
Groove 51, the center of rubber ring 50 is provided with telescopic cavity I 52.It is preferred that, the outer rim of telescopic cavity I 52 is evenly equipped with multiple sawtooth, and is located at
Multiple telescopic cavities II 53 in integral ring-shaped setting are evenly equipped with rubber ring 50 outside telescopic cavity I 52, telescopic cavity II 53 is in rubber
V-shaped structure on 50 rip cutting section is enclosed, and each telescopic cavity II 50 is not connected mutually.In specific implementation process, telescopic cavity II is also
The dilatation dynamics of rubber ring can be realized using other structure types, such as corrugated, zigzag structure.
Wherein, the tail end of anchoring section 20 is connected with freely saving 30 front end, and the tail end for freely saving 30 is connected with anchor head 1.PVC
The Shu Jie of the front end of sleeve pipe 8 and the front end of anchoring section 2 is tightly connected, and the end of PVC sleeve pipes 8 is slidably located on anchor head 1.The present invention
In beam section 6 be high strength cast iron ring colligation section.
It is preferred that, anchoring section 20 at least two freely saves 30 and is at least three.Two anchoring sections 20 are listed in Fig. 1
30 are freely saved with least four.Wherein, the connection end of two neighboring anchoring section 20 shares a Shu Jie, and the steel of each anchoring section 20
Silk is the overall structure continued, i.e. the steel wire of anchoring section 2 is the continuous overall structure without disconnection；It is two neighboring freely save 30 company
Connect end share a Shu Jie, and it is each freely save 30 steel wire be continuity the overall structure without disconnection, the i.e. steel wire of free segment 3 be company
The continuous entirety without disconnection.It is preferred that, steel wire and the outermost steel wire of anchoring section 2 of free segment 3 are the continuous entirety knot without disconnection
Structure.
A kind of construction method for being used to reinforce the steel tendon anchor pole of weak surrounding rock, comprises the following steps：Step 1: by multi beam
Steel wire smooth out with the fingers directly, align, be set to isometric, in the beam section ring colligation of steel wire one end, form steel tendon；
Step 2: making steel tendon uniformly across the through hole set on the support wire ring 40 in rigid support wire device 4, the end face structure of formation
As shown in Fig. 2 then wearing the anchoring section 20 during a side sets another beam combination section, formation such as Fig. 1；
Step 3: the operation of repeat step one and step 2, sets no less than two anchoring sections 20；
Step 4: by steel tendon uniformly across the guide slot 51 in the outer rim of rubber ring 50 of elastic support wire device 5, then in steel tendon
Both sides beam section ring colligation, repeats the step, and setting freely saves 30 no less than three；
Step 5: into bar multiple steel tendon colligations for freely saving the tail end of free segment 3 that 30 connections are formed are formed into anchor head 1, in bar
Coating lubricating oil fat on body, and be arranged on free segment 3 PVC sleeve pipes 8, the two ends of PVC sleeve pipes 8 are by galvanized wire colligation in free segment
On the Shu Jie of 3 front ends and end, anchor pole is formed；
Step 6: being put into complete anchor pole is made in the drilling 11 of the country rock set in advance, anchored by Grouting Pipe slip casting,
It is provided for fixing the anchor pier 9 and nut 10 of anchor head 1 outside drilling 11, carries out anchor rod drawing anchoring, it is soft in the anchor pole course of work
Rock large deformation promotes anchor rod body to extrude rubber ring 50, increases rock-bolt length, discharges surrouding rock stress, completes the reinforcing of weak surrounding rock
Task.
Claims (10)
1. a kind of steel tendon anchor pole for being used to reinforce weak surrounding rock, the anchor pole includes anchor head and the body of rod, the front end of the body of rod, which is stretched into, encloses
In the drilling of rock, the tail end of the body of rod is connected with anchor head, it is characterised in that：The described body of rod is made up of anchoring section and free segment, anchor
Gu the anchoring section that section is sequentially connected including several, each anchoring section includes rigid support wire device, Shu Jie and multi beam steel wire, multi beam
Steel wire is passed through after rigid support wire device, and the two ends of steel wire carry out colligation by beam section；Free segment including several be sequentially connected from
By saving, each is freely saved include elastic support wire device, Shu Jie and multi beam steel wire, and multi beam steel wire is passed through after elastic support wire device, steel wire
Two ends pass through beam section carry out colligation；Wherein, the tail end of anchoring section is connected with the front end freely saved, the tail end and anchor head freely saved
Connection.
2. a kind of steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 1, it is characterised in that：Described anchoring
Section at least two, the shared Shu Jie in connection end of two neighboring anchoring section, and the steel wire of each anchoring section is the entirety of continuity
Structure.
3. a kind of steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 1, it is characterised in that：Described freedom
Section is at least three, and the two neighboring connection end freely saved shares a Shu Jie, and each steel wire freely saved is the entirety of continuity
Structure.
4. a kind of steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 1, it is characterised in that：The described body of rod
On be coated with lubricant grease, described free segment is arranged with PVC sleeve pipes, the front end of PVC sleeve pipes and the Shu Jiemi of anchoring section front end
Envelope connection, the end of PVC sleeve pipes is slidably located on anchor head.
5. a kind of steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 1, it is characterised in that：Described rigidity
Support wire device includes some support wire rings being arranged concentrically, and each support wire ring is connected as one by floor arranged in a crossed manner, support wire ring
Each through hole that outer rim is evenly equipped with the through hole for wearing steel wire, same support wire ring is centrally located at this that support wire ring is concentric sets
On the circumference put.
6. a kind of steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 5, it is characterised in that：Described support wire
The spaced radial that ring is at least between three, two neighboring support wire ring is identical.
7. a kind of steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 1, it is characterised in that：Described elasticity
Support wire device includes rubber ring, and the outer rim of rubber ring is evenly equipped with the guide slot that steel wire is set for card, and the center of rubber ring is provided with flexible
Chamber I.
8. a kind of steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 7, it is characterised in that：Telescopic cavity I
Outer rim, which is evenly equipped with multiple sawtooth, and the rubber ring being located at outside telescopic cavity I, is evenly equipped with the overall multiple telescopic cavities set in a ring
II, the V-shaped structure on the rip cutting section of rubber ring of telescopic cavity II, and each telescopic cavity II do not connect mutually.
9. a kind of steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 1, it is characterised in that：Described Shu Jie
For reinforcing bar ring colligation section.
10. a kind of construction method as claimed in claim 1 for being used to reinforce the steel tendon anchor pole of weak surrounding rock, its feature exists
In the construction method comprises the following steps：
Step 1: by multi beam steel wire smooth out with the fingers directly, align, be set to isometric, in the beam section ring colligation of steel wire one end, form steel wire
Beam；
Step 2: making steel tendon uniformly across rigid support wire device, another beam combination section is set wearing a side, anchoring section is formed；
Step 3: the operation of repeat step one and step 2, sets no less than two anchoring sections；
Step 4: by steel tendon uniformly across elastic support wire device, and in the beam section ring colligation of steel tendon both sides, repeat the step
Suddenly, set and freely saved no less than three；
Step 5: by the steel tendon colligation of free segment tail end into bar, form anchor head, the coating lubricating oil fat on the body of rod, and from
By being arranged PVC sleeve pipes in section, the two ends of PVC sleeve pipes on the Shu Jie of free segment front end and end, form anchor by galvanized wire colligation
Bar；
Step 6: being put into complete anchor pole is made in the drilling of the country rock set in advance, anchored, bored by Grouting Pipe slip casting
It is provided for fixing the anchor pier and nut of anchor head outside hole, carries out anchor rod drawing anchoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710347144.8A CN106958450B (en) | 2017-05-17 | 2017-05-17 | Steel wire bundle anchor rod for reinforcing weak surrounding rock and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710347144.8A CN106958450B (en) | 2017-05-17 | 2017-05-17 | Steel wire bundle anchor rod for reinforcing weak surrounding rock and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106958450A true CN106958450A (en) | 2017-07-18 |
| CN106958450B CN106958450B (en) | 2024-02-06 |
Family
ID=59482988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710347144.8A Active CN106958450B (en) | 2017-05-17 | 2017-05-17 | Steel wire bundle anchor rod for reinforcing weak surrounding rock and construction method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN106958450B (en) |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1375895A (en) * | 1963-09-09 | 1964-10-23 | Rock consolidation and anchoring process | |
| US4630971A (en) * | 1985-01-30 | 1986-12-23 | Dyckerhoff & Widmann Aktiengesellschaft | Apparatus for anchoring rock and the like |
| DE4123013A1 (en) * | 1991-02-09 | 1992-08-13 | Ernst Dipl Ing Reichert | GROUND ANCHOR AND GROUND PILE |
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