CN201236718Y - Inner slip-casting anchor cable - Google Patents
Inner slip-casting anchor cable Download PDFInfo
- Publication number
- CN201236718Y CN201236718Y CNU2008200387669U CN200820038766U CN201236718Y CN 201236718 Y CN201236718 Y CN 201236718Y CN U2008200387669 U CNU2008200387669 U CN U2008200387669U CN 200820038766 U CN200820038766 U CN 200820038766U CN 201236718 Y CN201236718 Y CN 201236718Y
- Authority
- CN
- China
- Prior art keywords
- cable
- anchor
- grouting
- wire
- serum
- 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
- 238000007569 slipcasting Methods 0.000 title description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 239000002002 slurry Substances 0.000 claims description 13
- 230000000149 penetrating Effects 0.000 claims description 10
- 210000003660 Reticulum Anatomy 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005755 formation reaction Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 41
- 238000004873 anchoring Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 6
- 230000003014 reinforcing Effects 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 210000002966 Serum Anatomy 0.000 abstract 3
- 230000002349 favourable Effects 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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[C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 210000000481 Breast Anatomy 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Abstract
The utility model provides an internal grouting anchor wire, which comprises a wire body, an anchor wire lockset, a gasket and a tray, wherein, the wire body comprises a plurality of steel stranded wires and rubber grouting pipes arranged in the steel stranded wires; a plurality of serum-shooting holes which are formed at intervals are drilled on the rubber grouting pipes; and the parts of the steel stranded wires which are drilled with the serum-shooting holes are honeycomb-shaped. Compared with an internal grouting anchor rod, the internal grouting anchor wire is characterized in that the strengthening and reinforcing function of surrounding rock is greatly improved, as the wire body is longer, the diffusion range of serum in roadway surrounding rock is greatly improved when the anchor wire is grouted; next, the honeycomb-shaped serum-shooting sections are favorable for the serum to be jetted from grouting pipelines; the anchoring force of the anchor wire can be increased when the serum is solidified; the invalidation of the anchor wire is avoided when the anchor wire bears a heavier load; and the internal grouting anchor wire is particularly suitable for supporting a mine, a tunnel, underground engineering surrounding rock. The internal grouting anchor wire has the advantages of simple structure and reliable performance, and is convenient for construction, thereby having wide practicability.
Description
Technical field
The utility model relate to a kind of in grouting cable anchor, be particularly useful for the supporting of heavily stressed breaking surrounding rock and dead-soft rock stratum in mine, tunnel, the underground construction.
Background technology
Along with the continuous development of coal in China industry, many mining areas are all more and more running into the weak broken rock stratum in varying degrees, and this class rock stratum has characteristics such as expansion, rheology, and degree of consolidation is poor, and this makes soft-rock tunnel be regarded as the difficult point of coal mine support always.
At present, China's soft-rock tunnel mainly adopts the metal collapsible timbering, and it is huge to consume steel.In order to save steel, reduce support cost, relevant in recent years mining area various types of bolt supports of test of many times once in soft-rock tunnel, as: support forms such as the anchor pole that can stretch, assembled bolt and anchor pole truss occur in succession.Yet the loose range of country rock of soft rock roadway is bigger, and rock mass strength is low, can't provide stable origin of force for anchor pole, and therefore simple use bolt support is difficult to make broken sillar to be in pressured state fully and to form built-up arch.Compare with block arch, metallic support support form, the prime advantage of bolt support is the supporting country rock of active in time, but the anchored force of bolt support depends on the mechanical property of institute's anchor rock mass to a great extent, at soft-rock tunnel, the anchor difference of country rock is to cause the major reason that anchor-holding force of anchor bolt is low and lost efficacy.
Because anchor cable is mainly reflected in rock mass suspention effect the control action of country rock.But for the anchor cable in heavily stressed breaking surrounding rock and the dead-soft rock stratum, it is shorter that it is anchored at the anchoring section of stablizing in the rock stratum on the one hand, very easily occurs failure phenomenon when having born bigger load; On the other hand, less for the scope of broken loose wall rock anchor cable suspention effect, make the tunnel the serious phenomenon of local failure occur.Because the cost of cable bolting is higher, can not resemble and encrypt the anchor pole, just become problem demanding prompt solution in the cable bolting so how to improve the anchored force of anchor cable and suspend sphere of action in midair.
The utility model content
Technical problem: the purpose of this utility model provides a kind of simple in structure, can effectively keep the interior grouting cable anchor of tunnel adjoining rock stability in soft stratum and the heavily stressed broken rock.
Technical scheme: the utility model comprises cable body, the anchor cable lockset, packing ring, pallet, wherein said cable body is made of multiply steel strand and the rubber Grouting Pipe that is located in the multiply steel strand, whenever being spaced a distance on the rubber Grouting Pipe is drilled with a plurality of slurry holes of penetrating, and being drilled with a plurality of steel strand of penetrating place, slurry hole site is honeycomb.
A plurality of spacings of penetrating the slurry hole are 300mm on the described rubber Grouting Pipe; Described each hole of penetrating the slurry hole is crossed as 90 °, and pitch-row is 50mm; Described cable body afterbody rubber Grouting Pipe grows 100mm than steel strand.
Beneficial effect: the utility model takes into full account heavily stressed breaking surrounding rock and the destruction principle in dead-soft country rock tunnel and the action principle of anchor cable, the two is organically combined, do slip casting device and high strength steel strand as grouting cable anchor in supporting device novel with the rubber Grouting Pipe.When just digging in the tunnel just as cable bolting, treat to carry out grouting and reinforcing after roadway deformation is stablized, the anchored force of anchor cable and the globality of country rock have been increased, for anchor pole, cable bolting provide reliable origin of force, accelerated roadway construction, reduce support cost, can effectively guarantee the stability in tunnel simultaneously.Be applicable to tunnel, underground engineering support, be particularly useful for the supporting of heavily stressed breaking surrounding rock and dead-soft rock stratum.It is simple in structure, and cost is low, dependable performance, and easy construction is quick, and is strong to the protective value in tunnel, has practicality widely.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the B partial structurtes enlarged drawing among Fig. 1.
Fig. 3 is A-A cross section structure figure of Fig. 1.
Among the figure: 1-rubber Grouting Pipe; The 2-cable body; 3-anchor cable lockset; The 4-packing ring; The 5-pallet; 6-honeycomb slip casting section; 7-plastics stirring-head; 8-steel strand; 9-penetrate and starch the hole.
The specific embodiment
The utility model will be further described below in conjunction with the embodiment in the accompanying drawing:
Shown in Figure 1, interior grouting cable anchor wears the pallet 5, packing ring 4 and the anchor cable lockset 3 that are fixed on the cable body 2 successively by cable body 2, and cable body 2 is turned round system by six strands of high strength steel strands 8 and formed, and the center of six strands of high strength steel strands 8 is wrapped with a rubber Grouting Pipe 1, and is shown in Figure 3.Be drilled with a plurality of slurry holes 9 of penetrating every 300mm on the rubber Grouting Pipe 1 in the middle of the cable body 2, pitch-row is 50mm, and each hole is crossed as 90 °, is convenient to slurries and can injects body of rod rock mass all around.More than 2 steel strand cable bodies 2 outside penetrating slurry hole 9 of cable body are processed into honeycomb, and are shown in Figure 2.Be beneficial to slurries on the one hand and penetrate, help increasing the friction between cable body and the borehole wall on the other hand, increase anchored force; The head of cable body 2 is provided with plastics stirring-head 7, and its effect is conveniently to push the anchoring agent and strengthen stirring action to the anchoring agent, and this stirring-head 7 is used to shut the top exit of the rubber Grouting Pipe 1 of termination simultaneously, prevents that the anchoring agent from flowing into rubber Grouting Pipe 1; The afterbody rubber Grouting Pipe 1 of anchor cable body is than the long 100mm of the steel strand of cable body 2, conveniently to connect slip casting machinery.
Operating principle: because country rock is disturbed, broken the original equilibrium relation of the stress of primary rock when tunnel is just dug, regional area stress can occur and concentrates in the country rock, and these secondary stress will make country rock produce distortion up to forming new equilibrium relation.Adopt this use novel carry out supporting the time, at first carry out anchorage cable anchoring construction with resin explosive roll, the aperture is sealed with the ring-shaped rubber plug and is convenient to later slip casting.Load onto packing ring 4 in order, pallet 5 carries out stretch-draw etc.Anchor cable becomes full length fastening after the slip casting, has improved the anchored force of anchor cable; The design of honeycomb slip casting section 6 helps increasing the friction between cable body 2 and the borehole wall, increases anchored force.Because anchor cable cable body length is longer, make that the scope of slurries diffusion is bigger in the country rock, increase the physico-mechanical properties of power country rock self greatly, make country rock form an integral body, the suspention effect of anchor cable is obvious like this, can not produce tunnel local failure serious situation.Taking into full account heavily stressed breaking surrounding rock and the destruction principle in dead-soft country rock tunnel and the action principle of anchor cable, the two is organically being combined to design with rubber rubber Grouting Pipe 1 do slip casting device and high strength steel strand 8 as grouting cable anchor in supporting device novel.Carry out cable bolting when just digging in the tunnel, treat to carry out grouting and reinforcing after roadway deformation is stablized, the anchored force of anchor cable and the globality of country rock had both been increased, for anchor pole, cable bolting provide reliable origin of force, accelerated roadway construction, reduce support cost again, can effectively guarantee the stability in tunnel simultaneously.
Claims (4)
1, a kind of interior grouting cable anchor, comprise cable body (2), anchor cable lockset (3), packing ring (4), pallet (5), it is characterized in that: described cable body (2) is by multiply steel strand (8) and be located at interior rubber Grouting Pipe (1) formation of multiply steel strand (8), and whenever being spaced a distance on the rubber Grouting Pipe (1) is drilled with a plurality of slurry holes (9) of penetrating, and is drilled with a plurality of steel strand (8) of penetrating slurry position, hole (9) and is honeycomb.
2, according to the described interior grouting cable anchor of claim 1, it is characterized in that: it is 300mm that described rubber Grouting Pipe (1) goes up a plurality of spacings of penetrating slurry hole (9).
3, according to claim 1 or 2 described interior grouting cable anchors, it is characterized in that: described each hole of penetrating slurry hole (9) is crossed as 90 °, and pitch-row is 50mm.
4, according to the described interior grouting cable anchor of claim 1, it is characterized in that: described cable body (2) afterbody rubber Grouting Pipe (1) grows 100mm than steel strand (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200387669U CN201236718Y (en) | 2008-08-08 | 2008-08-08 | Inner slip-casting anchor cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200387669U CN201236718Y (en) | 2008-08-08 | 2008-08-08 | Inner slip-casting anchor cable |
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| CN201236718Y true CN201236718Y (en) | 2009-05-13 |
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| CNU2008200387669U Expired - Fee Related CN201236718Y (en) | 2008-08-08 | 2008-08-08 | Inner slip-casting anchor cable |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226405A (en) * | 2011-05-25 | 2011-10-26 | 河北同成矿业科技有限公司 | Method for reinforcing working surface of loose and soft coal bed by utilizing nonmetal grouting anchor cable |
| CN102418536A (en) * | 2012-01-10 | 2012-04-18 | 中国矿业大学 | Large-aperture pretension base plate hollow grouting device |
| CN103382847A (en) * | 2013-07-26 | 2013-11-06 | 中国矿业大学 | Prestressed drilling, anchoring and grouting anchor cable and support method |
| CN103410543A (en) * | 2013-08-13 | 2013-11-27 | 中国矿业大学 | Pressure yielding internally-grouted anchor cable |
| CN103643977A (en) * | 2013-11-21 | 2014-03-19 | 中国矿业大学 | Full-anchor partition pressure transferring grouting anchor rod and application method thereof |
| CN103670467A (en) * | 2013-10-29 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Grouting anchor cable |
| CN104074189A (en) * | 2014-06-24 | 2014-10-01 | 中南大学 | Recyclable slip casting expansion enlarged head pre-stressed anchor cable |
| CN104100282A (en) * | 2014-06-17 | 2014-10-15 | 山西晋城无烟煤矿业集团有限责任公司 | Method for driving anchor cables to maintain triangular area of roadways |
| CN105781597A (en) * | 2014-12-16 | 2016-07-20 | 淮南矿业(集团)有限责任公司 | Method for performing anchoring and grouting reinforcement inside deep well soft rock gob-side entry retaining |
| CN108166491A (en) * | 2017-12-06 | 2018-06-15 | 苏州市能工基础工程有限责任公司 | The method for dismounting of steel strand wires in anchor cable |
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- 2008-08-08 CN CNU2008200387669U patent/CN201236718Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226405A (en) * | 2011-05-25 | 2011-10-26 | 河北同成矿业科技有限公司 | Method for reinforcing working surface of loose and soft coal bed by utilizing nonmetal grouting anchor cable |
| CN102226405B (en) * | 2011-05-25 | 2013-04-10 | 河北同成科技股份有限公司 | Method for reinforcing working surface of loose and soft coal bed by utilizing nonmetal grouting anchor cable |
| CN102418536A (en) * | 2012-01-10 | 2012-04-18 | 中国矿业大学 | Large-aperture pretension base plate hollow grouting device |
| CN103382847A (en) * | 2013-07-26 | 2013-11-06 | 中国矿业大学 | Prestressed drilling, anchoring and grouting anchor cable and support method |
| CN103382847B (en) * | 2013-07-26 | 2015-08-19 | 中国矿业大学 | A kind of prestressing force bores anchor note anchor cable and supporting method |
| CN103410543A (en) * | 2013-08-13 | 2013-11-27 | 中国矿业大学 | Pressure yielding internally-grouted anchor cable |
| CN103670467B (en) * | 2013-10-29 | 2015-12-30 | 淮南矿业(集团)有限责任公司 | Grouting cable anchor |
| CN103670467A (en) * | 2013-10-29 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Grouting anchor cable |
| CN103643977A (en) * | 2013-11-21 | 2014-03-19 | 中国矿业大学 | Full-anchor partition pressure transferring grouting anchor rod and application method thereof |
| CN104100282A (en) * | 2014-06-17 | 2014-10-15 | 山西晋城无烟煤矿业集团有限责任公司 | Method for driving anchor cables to maintain triangular area of roadways |
| CN104074189A (en) * | 2014-06-24 | 2014-10-01 | 中南大学 | Recyclable slip casting expansion enlarged head pre-stressed anchor cable |
| CN105781597A (en) * | 2014-12-16 | 2016-07-20 | 淮南矿业(集团)有限责任公司 | Method for performing anchoring and grouting reinforcement inside deep well soft rock gob-side entry retaining |
| CN108166491A (en) * | 2017-12-06 | 2018-06-15 | 苏州市能工基础工程有限责任公司 | The method for dismounting of steel strand wires in anchor cable |
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