CN104612150B - A kind of anchor cable and its Inner bolt head administered for rock side slope - Google Patents
A kind of anchor cable and its Inner bolt head administered for rock side slope Download PDFInfo
- Publication number
- CN104612150B CN104612150B CN201510016382.1A CN201510016382A CN104612150B CN 104612150 B CN104612150 B CN 104612150B CN 201510016382 A CN201510016382 A CN 201510016382A CN 104612150 B CN104612150 B CN 104612150B
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- inner bolt
- bolt head
- steel strand
- strand wires
- anchor cable
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Classifications
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- 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
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- 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)
- Piles And Underground Anchors (AREA)
Abstract
A kind of anchor cable and its Inner bolt head administered for rock side slope, Inner bolt head includes body and through some twisted wire holes located at body；Body two ends are respectively first end and the second end, and first end is successively decreased to the second end diameter and in cone, body first end periphery is interval with recess.The grouted part of anchor cable include some Inner bolt heads, the end to end arrangement of some Inner bolt heads, and each Inner bolt head first end away from free segment the second end close to free segment；At least one in the twisted wire hole of each Inner bolt head is equipped with steel strand wires, and steel strand wires extend to free segment and outer anchoring section so that by steel strand wires in parallel relationship between each Inner bolt head；The end of steel strand wires in each twisted wire hole is exposed and is provided with heading, and each heading is close to the first end side surface of corresponding each Inner bolt head.Inner bolt head of the present invention can uniformly transfer load, can improve the security and long-term effectiveness of slope anchorage.
Description
Technical field
The invention belongs to Geotechnical Engineering field, more particularly to a kind of New Anchor Cable administered for rock side slope and its
Inner bolt head.
Background technology
In Geotechnical Engineering construction, prestressed anchorage technology has become most common Rock And Soil reinforcement measure, prestressing force
Anchor cable can actively reinforce Rock And Soil, effectively increase Rock Slide Stability safety coefficient, it is ensured that the safety of engineering construction and runtime, its
Mainly there are following a few classes：
1. the first generation has cohesive unprotect prestress anchorage cable
This type anchor cable is still applied in the engineerings such as the most traffic of China, water conservancy and hydropower so far.As shown in figure 1,
This anchor cable system is made up of the solid section of grouted part 1 ', free segment 2 ' and outer anchor 3 '.The steel strand wires 4 ' of free segment 2 ' are protected with grease
Shield, and because the antirust reliability of use oil guard is poor, almost all of engineering finally all can incite somebody to action oneself by way of grouting
Shut by section.Thus, such anchor cable has eventually become cohesive unprotect type anchor cable, and this anchor cable system has following defect：
(1) wrapped up because anchor cable and grouted part are all filled under naked state by backfilling mortar, once backfilling mortar
Body ftractures, under the etch of water, anchor cable easily corrosion；
(2) to prevent corrosion, nearly all engineering fills the free segment of anchor cable with mortar all after construction terminates.This
Sample, anchor cable can not lose the ability freely adjusted with rock mass deformation, reduce the effect of side slope reinforcing；
(3) such anchor cable to form a pretensioned Inner bolt head because needing, therefore is difficult to arrange interior in the drilling beaten upwards
Anchor head.Simultaneously as Inner bolt head is formed under passive state, it is difficult to ensure that slip casting is closely knit.According to investigation, 10% there are about
More or less there is slip casting leakiness in the quality of anchor cable Inner bolt head.
2. second generation soap-free emulsion polymeization double shielding anchor cable
As shown in Fig. 2 second generation anchor cable is using the protection steel strand wires 4 ' of polyvinyl chloride sleeve pipe 5 ' for filling anti-corrosive grease, only will be interior
Each steel strand wires of anchoring section 1 ' remove polyvinyl chloride sleeve pipe, meanwhile, grouted part 1 ' and the once grouting of free segment 2 '.Such anchor
Rope compensate for the shortcoming of first generation anchor cable, and the steel strand wires of free segment can move freely in sleeve pipe, make whole anchor cable system can be with
With rock mass deformation, the purpose of hypogene geologic action is reached, uphole is stamped and the closely knit problem of slip casting also accordingly achieves a solution.In recent years, I
State's hydropower system has gradually used the steel strand wires through protection, such as voe, Zi Ping-pu engineering.However, such a anchor cable system
Grouted part steel strand wires can only be appointed exposed, directly contacted with mortar, also reduce service life.
3. soap-free emulsion polymeization Prestressed anchor rope with pressure dispersing
Research shows, stress concentration will be produced at a certain section during the grouted part tension of traditional anchor cable, while grouted part
Cutting of being produced in outside extract of steel strand wires swollen be likely to result in mortar consolidation section cracking at this.Therefore, as shown in figure 3, nothing
The grouted part 1 ' of cohesive pressure dispersion-type prestressed anchorage cable has multiple Inner bolt heads 6 ' in parallel, can improve grouted part 1 '
Stress, improve grouted part 1 ' reliability so that for reduce grouted part length create conditions.This New Anchor Cable,
In addition to possessing all advantages of conventional anchor cable, following important feature also add：
(1) anchor cable Inner bolt head uniform force, with high anti-pulling overload capacity, multiple Inner bolt heads of anchor cable are by simultaneously
Connection principle is distributed in grouted part, has not only been greatly improved the reliability of anchor cable system, and can shorten anchoring depth,
Compared with traditional anchor cable system, remarkable in economical benefits；
(2) disposable slip casting backfilling process is used, by grouting under pressure improvement drilling surrounding rock body, and ensures that Inner bolt head is noted
Slurry is closely knit, can install and face upward and anchor cable vertically upward.
Obviously, this kind of anchor cable system will effectively improve the security and long-term effectiveness of slope anchorage, be China's rock
Geotechnological journey prestressed anchorage technology progress plays a significant role.
As shown in figure 3, at present, the prestress anchorage cable type commonly used in Geotechnical Engineering is soap-free emulsion polymeization pressure dispersing type prestressing force
Anchor cable, this anchor cable is for the first generation has binding type anchor cable, and the PVC plastic gum cover 5 ' due to the overcoat of steel strand wires 4 ' can
,, can be with during engineering operation additionally, due to its overcoat PVC plastic gum cover to meet prestressing force corrosion-resistant requirement well
Adapt to rock mass deformation and carry out prestressing force adjustment, it is ensured that rock mass deformation is mutually coordinated with anchor cable stress.But its compared with the second generation without
An important structural detail --- Inner bolt head 6 ' and 7 ' has been bonded more than anchor cable, and it is mainly used to pass through the prestressing force in anchor cable
Body in anchor hole is transferred in rock mass.But in the Inner bolt head 6 ' and 7 ' of existing soap-free emulsion polymeization Prestressed anchor rope with pressure dispersing
Design on, prestressed load transmission is mainly carried out using one piece thicker flat board, because this block load transmits platen area
Very little, and it is added in that the prestressing force in flat board is very big, the cement mortar irrigated under flat board will be subject to crushing, and influence prestress anchorage cable
The reliability of side slope after reinforcing in engineering operation period.Under larger earthquake or rainfall operating mode, it may occur however that slope instability,
Cause the important geological disaster such as side slope avalanche, sliding.
The content of the invention
It is an object of the invention to provide a kind of Inner bolt head for the anchor cable administered for rock side slope, its is reasonable in design, structure
Intensity is big, can uniformly transfer load.
It is a further object of the present invention to provide a kind of anchor cable administered for rock side slope, it can effectively improve side slope
The security and long-term effectiveness of anchoring.
To achieve the above object, the present invention takes following technical scheme：
A kind of Inner bolt head for the anchor cable administered for rock side slope, it includes body and through some strands located at the body
String holes；The body two ends are respectively first end and the second end, and the first end is successively decreased to the second end diameter and is in cone, the body
First end periphery is interval with recess.
First end side surface is convexly equipped with connecting portion axially outward, and the twisted wire hole position is inside the connecting portion；The company
Socket part connects a cover body, and the twisted wire hole is sealed in the connecting portion by the cover body.
Second end side surface is convexly equipped with supporting part axially outward, and the twisted wire hole position is in the supporting part outer rim.
A kind of anchor cable administered for rock side slope, it includes grouted part, the free segment being sequentially connected by steel strand wires
With outer anchoring section；The steel strand wires are arranged with the sleeve pipe of filling anti-corrosive grease, and the grouted part includes some Inner bolt heads；The interior anchor
Head includes body and through some twisted wire holes located at the body；The body two ends are respectively first end and the second end, and this first
Hold and successively decrease to the second end diameter and in cone, the body first end periphery is interval with recess；Some Inner bolt head head and the tail phases
Run in row, and respectively the first end of the Inner bolt head away from the free segment the second end close to the free segment；
Respectively at least one in the twisted wire hole of the Inner bolt head is equipped with the steel strand wires, the steel strand wires extend to the free segment and
Outer anchoring section so that be in respectively parallel relationship by steel strand wires between the Inner bolt head；The end of steel strand wires in the respectively twisted wire hole
End is not provided with the sleeve pipe and is provided with heading, and respectively the heading is close to the first end side surface of corresponding each Inner bolt head.
First end side surface of the Inner bolt head is convexly equipped with connecting portion axially outward, and the twisted wire hole position is in the connecting portion
Portion；The connecting portion connects a protective cover, the protective cover by through the steel strand wires end seal in the twisted wire hole in the connecting portion
Enclosed with the protective cover in the cavity of structure.
The protective cover of the connecting portion of the Inner bolt head farthest apart from the free segment is in cone.
Second end side surface of each Inner bolt head is convexly equipped with supporting part axially outward, and the twisted wire hole position is in the supporting part
Outer rim.
Each twisted wire hole is equipped with the steel strand wires, and the steel strand wires of the Inner bolt head away from the free segment are passed through close to institute
State the recess of the Inner bolt head of free segment.
Steel strand wires between second end of each Inner bolt head and adjacent Inner bolt head first end are connected to a centering rack, should
Centering rack is in the form of annular discs, and periphery is interval with some breach, and the steel strand wires are inside the breach.
Each twisted wire hole is arranged as circle, and the connecting portion and supporting part are also circle.
The beneficial effects of the invention are as follows：The present invention solves the problems, such as pressure break of the existing Inner bolt head to injecting cement paste, improves anchor
Rope long-term reliability.The Inner bolt head of the present invention, it is rational in infrastructure, thus it is possible to vary prestressed load is acted on the pressure break of body, more
Plus directly effectively prestressed load is delivered in rock mass, it is easier to formed in rock mass and ensure Rock Slide Stability point counter-force arch,
Ensure Bolted Rock Masses in engineering construction and the stabilization of operation phase.The invention can be converted into actual product quickly, in rock
Utilization and extention is carried out in geotechnological journey, with important economic benefit and social benefit.
Brief description of the drawings
Fig. 1 is the structural representation that the existing first generation has cohesive unprotect prestress anchorage cable.
Fig. 2 is the structural representation of existing second generation soap-free emulsion polymeization double shielding anchor cable.
Fig. 3 is the structural representation of existing soap-free emulsion polymeization Prestressed anchor rope with pressure dispersing.
Fig. 4 is the structural representation of the Inner bolt head of the present invention.
Fig. 5 is the right view of the Inner bolt head of the present invention.
Fig. 6 is the left view of the Inner bolt head of the present invention.
Fig. 7 is the sectional view in A-A directions in Fig. 5.
Fig. 8 is the structural representation for the anchor cable that the present invention is administered for rock side slope.
Fig. 9 is the enlarged diagram at B in Fig. 8.
Figure 10 is the structural representation of the centering rack for the anchor cable that the present invention is administered for rock side slope.
Figure 11 is the installation diagram for the anchor cable that the present invention is administered for rock side slope.
Figure 12 is the force analysis figure of the Inner bolt head for the anchor cable that the present invention is administered for rock side slope.
Embodiment
Coordinate accompanying drawing that the present invention is further detailed below, but and be not used to limit implementation model of the invention
Enclose.
As Figure 4-Figure 7, present invention firstly provides a kind of Inner bolt head 1 for the anchor cable administered for rock side slope, it is wrapped
Include body 11 and through some twisted wire holes 12 located at the body 11, worn for steel strand wires.The two ends of body 11 are respectively first
The end 112 of end 111 and second, the first end 111 is successively decreased to the diameter of the second end 112 and is in cone, outside the first end 111 of body 11
Weekly interval is provided with recess 13.Further, the side of first end 111 is convexly equipped with connecting portion 14 axially outward, the twisted wire hole 12
Inside the connecting portion 14.The connecting portion 14, which is used for connection one, has what guide effect or protective effect or two kinds of effects had
Cover body 2, such as by screw thread, or pass through other existing connected modes so that the twisted wire hole 12 is sealed in this by the cover body 2
In connecting portion 14.In addition, the side of the second end 112 can be convexly equipped with supporting part 15 axially outward, the twisted wire hole 12 is located at should
The outer rim of supporting part 15, so when wearing steel strand wires in twisted wire hole 12, the supporting part 15 plays the work that support separates each steel strand wires
With.
As illustrated in figs. 8-9, the present invention separately provides a kind of anchor cable administered for rock side slope, and it includes passing through steel strand wires
3 grouted parts 4 being sequentially connected, free segment 5 and outer anchoring section 6.The steel strand wires 3 are arranged with the sleeve pipe 7 of filling anti-corrosive grease, example
Such as pvc pipe, make it after filling mortar, internal steel strand wires can be moved freely.Grouted part 4, free segment 5 and outer anchoring section 6
Division and connect same as the prior art, therefore will not be repeated here.Unlike the prior art, grouted part of the invention
4 include some Inner bolt heads 1, and the Inner bolt head is the above-mentioned Inner bolt head 1 provided of the invention, the end to end arrangement of these Inner bolt heads, and
Respectively the first end 111 of the Inner bolt head 1 away from the free segment 5 second end 112 close to the free segment 5.
Respectively at least one in the twisted wire hole 12 of the Inner bolt head 1 is equipped with the steel strand wires 3, the steel strand wires 3 extend to along
The outside of the domatic anchor hole drilled, and sequentially form the free segment 5 and outer anchoring section 6.Respectively pass through steel strand wires between the Inner bolt head
In parallel relationship, the end of the steel strand wires 3 in the respectively twisted wire hole 12 does not set the sleeve pipe and as exposed steel strand wires, exposed
Steel strand wires be provided with heading 31, respectively the heading 31 be close to the side of first end 111 of corresponding each Inner bolt head 1.
Accordingly, respectively the side of first end 111 of the Inner bolt head 1 is convexly equipped with connecting portion 14 axially outward, the twisted wire hole 12
Inside the connecting portion 14.The connecting portion 14 connects a cover body 2, and the cover body 2 is by through the end of steel strand wires 3 in the twisted wire hole 12
It is sealed in the connecting portion 14 to enclose in the cavity of structure with the cover body 2, internal exposed steel strand wires is protected.Wherein distance should be certainly
It is cone by the cover body of the connecting portion of the farthest Inner bolt head of section, thus with protection and is oriented to double action.
The side of the second end 112 of each Inner bolt head 1 is convexly equipped with supporting part 15 axially outward, and the twisted wire hole 12 is located at the branch
The outer rim of support part 15, is supported and is separated by 15 pairs of each steel strand wires of the supporting part.
It is preferred that, each twisted wire hole 12 of each Inner bolt head 1 is equipped with the steel strand wires 3 for leading to outside, away from the free segment 5
The steel strand wires of Inner bolt head pass through the recess 13 of the Inner bolt head close to the free segment 5, form good location.In addition, the recess 13 is also
Can be by pulp-inlet pipe, for grouting under pressure.
In order to prevent the steel strand wires of same Inner bolt head from intersecting, the second end 112 of each Inner bolt head and adjacent Inner bolt head first end
Steel strand wires 3 between 111 are connected to a centering rack 8, as shown in Figure 10, and the centering rack 8 is in the form of annular discs, if periphery is interval with
Dry breach 81, the steel strand wires 3 are inside the breach 81.
It is preferred that, each twisted wire hole 12 is arranged as circle, and the connecting portion 14 and supporting part 15 are also circle.
Anchor cable of the present invention is when mounted the same with common soap-free emulsion polymeization pressure pre-stressed anchoring cable, without special ground
Side, as shown in figure 11, steel strand wires 3 are passed through by twisted wire hole 12, and at the side of first end 111 with fashion of extrusion by steel strand wires 3
On heading 31 fix, install to have in the connecting portion 14 of first end 111 and protect steel strand wires heading not by corrosion and lead
To the guide housing 2 of effect, then rope under rope, installation, anchor hole, note are compiled according to normal pressures type construction prestressed cable process spread
Slurry and tensioning each operation.
Anchor cable of the present invention and common soap-free emulsion polymeization pressure pre-stressed anchoring cable main difference is that the structure of Inner bolt head not
Together, main difference is mainly reflected in Inner bolt head load transfer mechanism.As shown in figure 12, the structure of Inner bolt head 1 of the invention is big
Be cone table on body, so acted on by steel strand wires, suffered prestressed load F on Inner bolt head 1, resolved into F1 ' with
Two parts of F2 ', wherein：In conventional Inner bolt head anchor cable in prestressed load main function AA ' planes shown in the figure,
AA ' area very littles, therefore, may be by cement mortar body pressure break under larger prestressed load effect.And Inner bolt head of the present invention
In, F1 ' acts on the outer surface of frustum, and F2 ' acts on BB ' faces, and such load transmission area is substantially increased, done so used in anchor
The stress on cement mortar body irrigated in hole is smaller, it is ensured that the integrality of cement mortar body.Therefore, prestressed load can
Relatively evenly it is delivered in rock mass, it is ensured that prestress anchorage cable can reliably be run.
Patent of the present invention, mainly optimizes the force structure of soap-free emulsion polymeization compressibility anchor cable Inner bolt head, by the flat board of Inner bolt head
Force structure has made the force structure of wedge shape into, makes prestressed load transmission area increase several times in anchor cable, and directly will
Prestressing force has more been delivered evenly in rock mass, the situation for damaging cement injection body by pressure is reduced, so as to improve the whole of anchored slope
Body reliability, it is ensured that engineering construction and operation safety.
The prestress anchorage cable Inner bolt head that the present invention is developed, will largely improve the reliability of prestress anchoraging,
Effectively promote the research and development of prestressed anchorage technology and equipment aspect.The equipment promotion application of invention, it is preferable by producing
Economic and social profit.Using the Inner bolt head of the present invention field test, field test have been carried out at certain construction of hydro project scene
As a result show that the ultimate bearing capacity of Inner bolt head of the present invention is greatly improved, prestress anchorage cable Practical Project operational reliability is protected
Barrier.
It is in order to the present invention is expressly understood it is pointed out that above-mentioned embodiment is only possible embodiment
Principle and propose.Embodiment that can be to the invention described above in the case of without departing substantially from the principle of the invention and scope is permitted
Change and modifications more.All such modifications and variations are included in the scope that the present invention is disclosed, and will by appended right
The protection asked.
Claims (8)
1. a kind of Inner bolt head for the anchor cable administered for rock side slope, it is characterised in that it includes body and through located at this
Some twisted wire holes of body；The body two ends are respectively first end and the second end, and the first end is successively decreased to the second end diameter and is in circle
Taper, the body first end periphery is interval with recess；
First end side surface is convexly equipped with connecting portion axially outward, and the twisted wire hole position is inside the connecting portion；The connecting portion
A cover body is connected, the twisted wire hole is sealed in the connecting portion by the cover body.
2. the Inner bolt head of the anchor cable according to claim 1 administered for rock side slope, it is characterised in that：Second end
Side is convexly equipped with supporting part axially outward, and the twisted wire hole position is in the supporting part outer rim.
3. it is a kind of for rock side slope administer anchor cable, it include be sequentially connected by steel strand wires grouted part, free segment and
Outer anchoring section；The steel strand wires are arranged with the sleeve pipe of filling anti-corrosive grease, it is characterised in that：The grouted part includes some interior anchors
Head；The Inner bolt head includes body and through some twisted wire holes located at the body；The body two ends are respectively first end and second
End, the first end is successively decreased to the second end diameter and in cone, the body first end periphery is interval with recess；Some interior anchors
End to end arrangement, and respectively the first end of the Inner bolt head away from the free segment the second end close to the free segment；
The steel strand wires extend to the free segment and outer anchoring section so that be in respectively parallel relationship by steel strand wires between the Inner bolt head；
The end of steel strand wires in the respectively twisted wire hole is not provided with the sleeve pipe and is provided with heading, respectively the heading and corresponding each Inner bolt head
The first end side surface be close to；
Each twisted wire hole is equipped with the steel strand wires, and the steel strand wires of the Inner bolt head away from the free segment are passed through described in certainly
By the recess of the Inner bolt head of section.
4. the anchor cable according to claim 3 administered for rock side slope, it is characterised in that：The first end of the Inner bolt head
Side is convexly equipped with connecting portion axially outward, and the twisted wire hole position is inside the connecting portion；The connecting portion connects a protective cover,
The protective cover by through the steel strand wires end seal in the twisted wire hole in the cavity that the connecting portion and the protective cover enclose structure.
5. the anchor cable according to claim 4 administered for rock side slope, it is characterised in that：It is farthest apart from the free segment
Inner bolt head connecting portion protective cover in cone.
6. it is used for the anchor cable that rock side slope is administered according to claim 4 or 5, it is characterised in that：Each Inner bolt head
Second end side surface is convexly equipped with supporting part axially outward, and the twisted wire hole position is in the supporting part outer rim.
7. the anchor cable according to claim 6 administered for rock side slope, it is characterised in that：The second of each Inner bolt head
Steel strand wires between end and adjacent Inner bolt head first end are connected to a centering rack, and the centering rack is in the form of annular discs, and outer weekly interval is set
There are some breach, the steel strand wires are inside the breach.
8. the anchor cable according to claim 7 administered for rock side slope, it is characterised in that：Each twisted wire hole is arranged as
Circle, the connecting portion and supporting part are also circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016382.1A CN104612150B (en) | 2015-01-13 | 2015-01-13 | A kind of anchor cable and its Inner bolt head administered for rock side slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016382.1A CN104612150B (en) | 2015-01-13 | 2015-01-13 | A kind of anchor cable and its Inner bolt head administered for rock side slope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104612150A CN104612150A (en) | 2015-05-13 |
| CN104612150B true CN104612150B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510016382.1A Active CN104612150B (en) | 2015-01-13 | 2015-01-13 | A kind of anchor cable and its Inner bolt head administered for rock side slope |
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| CN (1) | CN104612150B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988311A (en) * | 2017-04-21 | 2017-07-28 | 中国水利水电科学研究院 | A kind of stress peak clipping formula anchor cable reinforced suitable for large-sized rock mass structural plane |
| CN108894236B (en) * | 2018-07-31 | 2020-11-10 | 中国水利水电科学研究院 | Pressure expansion type wedge-shaped inner anchor head |
| CN109868816A (en) * | 2019-01-25 | 2019-06-11 | 中国水利水电科学研究院 | Stress and the adjustable non-bonding prestress tendon Inner bolt head of deformation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2716341Y (en) * | 2004-02-20 | 2005-08-10 | 中国水利水电科学研究院 | Compression dispersion type prestressed anchor end in anchor cable |
| CN201649081U (en) * | 2009-11-11 | 2010-11-24 | 中国水利水电科学研究院 | Novel pressure-dispersed anchoring device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300417C (en) * | 2005-03-28 | 2007-02-14 | 李炳奇 | Permanent anchor rope used for side slope stabilization |
| KR100783728B1 (en) * | 2007-01-30 | 2007-12-07 | 주식회사 스마텍엔지니어링 | Anchor deivce |
| CN201334663Y (en) * | 2008-12-31 | 2009-10-28 | 中铁西北科学研究院有限公司深圳南方分院 | Self-locker and self-locking prestressed anchor rope provided with same |
| CN204456098U (en) * | 2015-01-13 | 2015-07-08 | 中国水利水电科学研究院 | A kind of New Anchor Cable for rock side slope improvement and Inner bolt head thereof |
-
2015
- 2015-01-13 CN CN201510016382.1A patent/CN104612150B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2716341Y (en) * | 2004-02-20 | 2005-08-10 | 中国水利水电科学研究院 | Compression dispersion type prestressed anchor end in anchor cable |
| CN201649081U (en) * | 2009-11-11 | 2010-11-24 | 中国水利水电科学研究院 | Novel pressure-dispersed anchoring device |
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| CN104612150A (en) | 2015-05-13 |
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