CN205036398U - Anchor rope - Google Patents
Anchor rope Download PDFInfo
- Publication number
- CN205036398U CN205036398U CN201520813697.4U CN201520813697U CN205036398U CN 205036398 U CN205036398 U CN 205036398U CN 201520813697 U CN201520813697 U CN 201520813697U CN 205036398 U CN205036398 U CN 205036398U
- Authority
- CN
- China
- Prior art keywords
- rod
- steel strand
- anchor cable
- strand rope
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model provides an anchor rope, includes the body of rod, is equipped with nut and backing plate in the one end of the body of rod, is equipped with the screw at body of rod protrusion in the one end of nut, keeps away from one of nut at the body of rod and serves and be equipped with a plurality of anchor rope heads in proper order, it is equipped with many steel stranding rope to distribute on the circumferencial direction of the body of rod between two adjacent anchor rope heads to fixed connection is overhead at corresponding anchor rope respectively at steel stranding rope's both ends, the utility model discloses the area of contact of anchor rope with the grout body can be increased, the anti - pulling capacity of anchor rope in the grout body has effectively been improved.
Description
Technical field
The utility model relates to a kind of anchor cable.
Background technology
Prestressing anchor support technological break-through old support form and support theory, for geotechnical engineering supporting.Cable bolting is effectively supplementing bolt support.Compared with common bolt, it has the advantages that anchor pole does not reach: anchor cable length is large, and can be anchored in stable rock stratum, anchor cable can apply high pre-stress, and the distortion of exert pressure to rock stratum arching, restriction rock mass, guarantees the stability of rock mass.
In supporting capacity, in the supporting of large span section and the supporting to roof fall region, relative to conventional supporting, cable bolting technology all has an enormous advantage, the important technology guarantee having become current China's coal-mine enterprise safety operation, geotechnical engineering safety construction and run.
But in practical engineering application, there is the hypodynamic scarce limit of anchoring in cable bolting.The anchored force of single anchor cable in stable rock stratum being 15.24mm for diameter can reach 230kN, for colliery tunnel support, when tunnel by working face extraction affect ore deposit pressure larger time, or roof cracking, have under the hard situations such as joint, crack, tomography time, the anchored force of cable bolting just shows slightly not enough, cannot ensure the security reliability in tunnel.
Improve anchored force and can reach following object: the condition that, initial high pre-stress is provided; Two, the restraint forces to Rock And Soil distortion is improved.Improve the method for anchored force except the efficient anchoring material of employing (high-strength cement mortar, resin), good quality project, special support board structure can also be made, increase the length etc. of anchoring section in anchor cable bottom.Adopt efficient anchoring material greatly can increase construction cost; Increase the effect of consolidation segment length to raising consolidation force is not also linear always.After consolidation length exceedes certain size, then increase consolidation length, obviously will reduce the impact of consolidation force and close to zero, increase consolidation length more ever after, also just almost nil on the impact of whole cable body anchored force.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of anchor cable, can add anchor cable and the contact area of grouting body, effectively improve the breakout capacity of anchor cable in grouting body.
In order to solve the problem, the technical solution of the utility model is: a kind of anchor cable, comprise the body of rod, nut and backing plate is provided with in one end of the body of rod, also be provided with screw thread at the body of rod, body of rod one end away from nut is provided with multiple anchor cable head successively, between adjacent two anchor cable heads, be provided with many steel strand ropes, described steel strand rope is arranged around the axisymmetrical distribution of the body of rod, and the two ends of steel strand rope are fixedly connected on the anchor cable head of steel strand rope both sides respectively.
The beneficial effects of the utility model are: the utility model is provided with many steel strand ropes on the body of rod, not only do not affect the plug of anchor cable, and the contact area of anchor cable and grouting body can be increased, thus improve the breakout capacity of anchor cable in grouting body, and the cohesion that steel strand rope can also add the body of rod and the body that is in the milk is shown in and frictional force, effectively end stress concentration phenomenon is shared each additional steel strand rope applying place, part can be converted to normal direction tensile stress along the tension-shear tests in body of rod direction, and be delivered on the body of rod, due to the symmetry of structure, this normal direction tensile stress can be offset to a great extent, to a certain extent, reduce the generation that stress is concentrated, thus extend the life-span of grouting body.
On the basis of technique scheme, the utility model can also do following improvement.
Preferably, the length of described steel strand rope is greater than the distance between two anchor cable heads.
Further, steel strand rope is provided with pre-breakpoint.
Further, described pre-breakpoint is the breach of the breach be arranged on steel strand rope.
Because steel strand rope has elasticity, when with length, the distance be greater than between two anchor cable heads is arranged on the body of rod steel strand rope, steel strand rope is spherical in shape, therefore when being inserted in hole, steel strand rope can contact with the inwall in hole, and in the process inserted, the pre-breakpoint arranged on steel strand rope can disconnect, now steel strand rope can outwards scatter, and then further increase the contact range of steel strand rope and hole inwall, on mechanics, play effect that good stress disperses to contact and friction with to enhance between the body of rod with grouting body effective, to a certain extent, add the applying of the structural initial pre stress of anchor cable.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is front view of the present utility model,
Fig. 2 is the sectional view at A-A place in the utility model Fig. 1,
Fig. 3 is the close-up schematic view at B place in the utility model Fig. 1,
Fig. 4 is the utility model front view in use.
Detailed description of the invention
As shown in Fig. 1 to 4: a kind of anchor cable, comprise the body of rod 1, nut 5 and backing plate 4 is provided with in one end of the body of rod 1, screw thread 6 is also provided with at the body of rod 1, the body of rod 1 one end away from nut 5 is provided with multiple anchor cable head 2 successively, between adjacent two anchor cable heads 2, be provided with many steel strand ropes 3, described steel strand rope 3 is arranged around the axisymmetrical distribution of the body of rod 1, and the two ends of steel strand rope 3 are fixedly connected on the anchor cable head 2 of steel strand rope 3 both sides respectively.
Preferably, the length of described steel strand rope 3 is greater than the distance between two anchor cable heads 2.
Further, steel strand rope 3 is provided with pre-breakpoint 31.
Further, described pre-breakpoint 31 is for being arranged on the breach of the breach on steel strand rope, and breach can have employing chisel to carve out on steel strand rope 3.
The utility model construction method:
1. anchor hole measuring: according to each work point engineering elevation, by designing accurate for anchor hole position measuring on rock mass.
2. drill through anchor hole: according to each anchor hole measuring point, rock mass drills through anchor hole, wherein it is to be noted that: do not allow use water pour anchor hole.
3. clear up anchor hole: after anchor hole drills through appropriate depth, preferably with adopting pressure-air by clean for the impurities purging in anchor hole.
4. install anchor cable: be inserted into by anchor cable in anchor hole, steel strand rope 3 is provided with the anchor cable of pre-breakpoint 31, can screw in in anchor hole, after in screw-in anchor hole, steel strand rope 3 can twist disconnected by the impurity in anchor hole or steel strand rope 3 own tension from pre-breakpoint 31.
5. anchor bolt grouting: select concrete or resin to carry out disposable slip casting to anchor hole.
6. anchorage cable stretching and locking, sealing off and covering anchorage: to be injected into anchor hole entoplasm, after reaching design strength, grading tension and locking are carried out to anchor cable.
In the process of slip casting, slurries can wrap up the whole body of rod 1 and be full of all lantern-shaped cage construction inside be made up of steel strand rope 3, increase the bonding of the body of rod 1 and boring surrounding rock body to a great extent, additional steel strand also can provide certain anchored force to strengthen the body of rod 1 uplift resistance simultaneously, effectively raise the applying of structural initial pre stress.
Claims (4)
1. an anchor cable, comprise the body of rod (1), nut (5) and backing plate (4) is provided with in one end of the body of rod (1), screw thread (6) is also provided with at the body of rod (1), it is characterized in that: at the body of rod (1) away from one end of nut (5) being provided with successively multiple anchor cable head (2), many steel strand ropes (3) are provided with between adjacent two anchor cable heads (2), described steel strand rope (3) is arranged around the axisymmetrical distribution of the body of rod (1), and the two ends of steel strand rope (3) are fixedly connected on the anchor cable head (2) of steel strand rope (3) both sides respectively.
2. a kind of anchor cable according to claim 1, is characterized in that: the length of described steel strand rope (3) is greater than the distance between two anchor cable heads (2).
3. a kind of anchor cable according to claim 2, is characterized in that: on steel strand rope (3), be provided with pre-breakpoint (31).
4. a kind of anchor cable according to claim 3, is characterized in that: described pre-breakpoint (31) is for being arranged on the breach on steel strand rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520813697.4U CN205036398U (en) | 2015-10-21 | 2015-10-21 | Anchor rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520813697.4U CN205036398U (en) | 2015-10-21 | 2015-10-21 | Anchor rope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205036398U true CN205036398U (en) | 2016-02-17 |
Family
ID=55295307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520813697.4U Expired - Fee Related CN205036398U (en) | 2015-10-21 | 2015-10-21 | Anchor rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205036398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049903A (en) * | 2018-02-06 | 2018-05-18 | 安徽理工大学 | Shearing resistance-large deformation tension and compression combination fried dough twist type anchor pole |
-
2015
- 2015-10-21 CN CN201520813697.4U patent/CN205036398U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049903A (en) * | 2018-02-06 | 2018-05-18 | 安徽理工大学 | Shearing resistance-large deformation tension and compression combination fried dough twist type anchor pole |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103088819B (en) | Construction prestressed cable method | |
| CN106321119A (en) | Double-layer anchor net cable supporting structure for controlling mining roadway surrounding rock deformation and method thereof | |
| CN103075170A (en) | Method for controlling surrounding rock deformation of gateway subjected to repeated overhead mining by using hollow grouting anchor cable | |
| CN105064358A (en) | Compensation adjustment method for prestress loss of anchor cable | |
| CN103590845A (en) | Impact-resistant interval grouting anchor cable and use method thereof | |
| CN104631320A (en) | Tunnel anchor of single-hole double-anchor system | |
| CN1966937A (en) | Once supporting method for reinforced anchor rod in deep tunnel | |
| CN101082281A (en) | Method for controlling deformation of surrounding rocks of gallery influenced by overhead mining | |
| CN203701092U (en) | Extrusion lock stress dispersion type high-tonnage anchor cable | |
| CN104533486A (en) | Bolting-grouting reinforcement method for remained roadway along goaf by use of self-drilling hollow grouting anchor cable | |
| CN205036398U (en) | Anchor rope | |
| CN203584447U (en) | Anti-impact interval grouting anchor cable | |
| CN204476444U (en) | A kind of self-drilling hollow grouting cable anchor | |
| CN103147777B (en) | Pumping paste prestress full bolting anchor rod/cable supporting method | |
| CN201411699Y (en) | Free type singe-aperture multi-anchor-head antiseptic prestressed tendon | |
| CN204804863U (en) | From formula of boring joinable prestressing force slip casting stock | |
| CN204327134U (en) | A kind of prestressing force balance anchor cable | |
| CN209100062U (en) | Can secondary grouting anchor cable structure, tunnel surrounding anchor structure | |
| CN108979689B (en) | Anchor cable structure capable of secondary grouting, tunnel surrounding rock anchoring structure and construction method | |
| CN103883339B (en) | A kind of cable bolting method repeating Shi Hanzhang | |
| CN203867598U (en) | Anchor cable capable of applying prestress repeatedly | |
| CN106567721A (en) | High prestressed anchor cable truss support method | |
| CN104846825A (en) | Novel anchor rope for treating rocky slopes and inner anchor head of novel anchor rope | |
| CN205530250U (en) | Novel outer anchor head multiple protection of prestressed anchorage cable device | |
| CN102979541A (en) | Novel anchor bolt and anchor cable installation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20161021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |