CN201206470Y - Yield press anchor cable - Google Patents
Yield press anchor cable Download PDFInfo
- Publication number
- CN201206470Y CN201206470Y CNU2008200374599U CN200820037459U CN201206470Y CN 201206470 Y CN201206470 Y CN 201206470Y CN U2008200374599 U CNU2008200374599 U CN U2008200374599U CN 200820037459 U CN200820037459 U CN 200820037459U CN 201206470 Y CN201206470 Y CN 201206470Y
- Authority
- CN
- China
- Prior art keywords
- anchorage cable
- anchorage
- anchor cable
- cable
- roadways
- 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
- 238000004873 anchoring Methods 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000008093 supporting effect Effects 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 7
- 238000003756 stirring Methods 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000003245 coal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000013632 homeostatic process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
A yielding anchorage cable is suitable for the yield of a mine, a tunnel and an underground engineering support. The anchorage cable is composed of an anchorage cable body, a tray arranged on the anchorage cable body, an anchorage cable lock for fixing the tail part of the anchorage cable body and a yielding device arranged between the anchorage cable body and the anchorage cable lock; and an anchorage agent stirring head is arranged at the head part of the anchorage cable body. When the roadways are excavated, the bolting is carried out simultaneously; the anchorage cable has the function of coordinating the problems that the extensibility of the anchorage bar and the anchorage cable in the anchorage cable combined support is low and the anchorage bar is deformed and not matched, so that the anchorage bar and the anchorage cable play respective bearing roles; the roadways are formed for one time, thereby accelerating the construction of the roadways and reducing the cost of the support; the anchorage cable can be prevented from being pulled apart under the situations that the roadways have larger deformation, and can fully provide the supporting force; the delay construction is not required, and the stability of the roadways can be ensured effectively. The anchorage cable has the advantages of simple structure, convenient construction, good supporting effect and wide practicability.
Description
Technical field
The utility model relates to a kind of anchor cable, especially a kind of be used for mine, tunnel and underground engineering support allow the pressure anchor cable.
Background technology
China Mine Geological condition more complicated, along with the increase of pit mining intensity with adopt dark continuing to increase, the tunnel proportion that is fit to the common bolt supporting is more and more littler, and the relatively poor IV of stability of the roadway, V class tunnel proportion is increasing, the tunnel that influenced by the deep bump, the high seam workings subject to dy namic pressure of top coal caving, soft-rock tunnel and the proportion increase of compound roof tunnel are the most obvious.These tunnels can not keep the stable of tunnel with the common bolt supporting merely, must adopt anchor cable to carry out reinforcing.Current anchor pole and the anchor cable combined supporting of adopting in coal mine roadway, it is more and more general to become.In anchor pole and anchor cable combined supporting, there is the problem of harmony.The combined supporting of coordinating can be brought into play anchor pole and anchor cable supporting performance separately to greatest extent mutually, can by mutual coordination and associating, obtain maximum supporting effect according to its supporting characteristic separately again.
The minor diameter prestress anchorage cable has obtained extensive utilization as a kind of reinforcement technology in the mine bolt supporting.Its effect is that the secondary bearing bed that bolt support forms is linked to each other with the key stratum of country rock, gives full play to the supporting capacity of deep wall rock, and wider rock mass is carried jointly, improves the stability of support system.The small-bore prestress anchorage cable uses 1 * 7 standard steel section twisted wire in " steel strand for prestressed concrete " national standards (GB/T5224-1995), this steel strand have the characteristics of anti-destructive power height, good toughness, underrelaxation, existing certain rigidity has certain flexibility again, flexible and realize self agitating resin powder stick Fast Installation, be adapted at using in the less coal road of bulk.See that the elongation per unit length of steel strand only has 3.5% on the engineering properties of widely used minor diameter anchor cable (15.24mm and 17.8mm) on the colliery, and the engineering elongation per unit length of anchor cable is 1.8%, and the elongation per unit length of anchor pole is generally between 20%～25%.In the anchor cable of 6m commonly used in the engineering and the combining anchor support system of 2m, the maximum elongation of anchor cable is 108mm, and the maximum elongation of anchor pole is 400mm, non-deformability differs bigger between the two as can be seen, so the carrying of anchor pole and anchor cable is asynchronous, is easy to generate anchor cable and is at first broken the back anchor pole and just begin to bring into play the carrying effect.
Summary of the invention
The purpose of this utility model is to overcome the problem that exists in the prior art, provides a kind of simple in structure, easy construction, and supporting effect is good allows the pressure anchor cable.
The pressure anchor cable that allows of the present utility model comprises the anchor cable cable body, is located at the pallet of anchor cable cable body, and the anchor cable lockset of the afterbody of mooring anchor rustling sound body is provided with between described pallet and the anchor cable lockset and allows pressure device, the head of anchor cable cable body be provided with anchoring agent stirring-head.
Described allow pressure device by a middle part projection, can provide 50～100mm deformation space allow pressure pipe and be located at and allow the packing ring at pressure pipe two ends constitute.
The utility model takes into full account the release principle in tunnel and the deformation characteristics of bolt support, adopts hollow allow pressure pipe, has increased anchoring agent stirring-head in the anchor cable termination simultaneously, can fully stir the anchoring agent like this and strengthen anchoring effect.When tunnel initating and bolt support carry out simultaneously, has the low and unmatched effect of bolt deformation of the anchor pole of coordination and anchor cable combined supporting stream line elongation per unit length, make anchor shaft anchor cable bring into play separately carrying effect simultaneously, roadway construction has been accelerated in the tunnel one-shot forming, has reduced support cost, anchor cable has in the tunnel under the situation of moderate finite deformation can be avoided being broken, have the advantage that supporting power can fully be provided, need not the construction that lags behind, can effectively guarantee the stability in tunnel simultaneously.It is simple in structure, easy construction, and supporting effect is good, has practicality widely.
Description of drawings
Fig. 1 is a structure chart of the present utility model;
Fig. 2 is A-A view of Fig. 1.
Among the figure: 1-anchor cable lockset; The 2-packing ring; 3-allows pressure pipe; The 4-pallet; 5-anchor cable cable body; 6-anchoring agent stirring-head; The 7-steel strand.
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Shown in Figure 1, allow press anchor cable by anchor cable lockset 1, allow pressure device, pallet 4, anchor cable cable body 5 and anchoring agent stirring-head 6 constitute.Anchor cable cable body 5 is made of seven strands of steel strand, and is shown in Figure 2.Allow pressure device by a middle part projection, can provide 50～100mm deformation space allow pressure pipe 3 and be located at and allow the packing ring 2 at pressure pipe 3 two ends constitute.Anchoring agent stirring-head 6 is located at the head of anchor cable cable body 5, allows pressure device and pallet 4 be set on the anchor cable cable body 5, and fixing by anchor cable lockset 1, anchor cable lockset 1 is made of packing ring and nut.
Principle use in work: 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 the new equilibrium relation of formation.Behind the roadway excavation, be provided with when anchor pole is set and originally allow the pressure anchor cable, the reinforcement effect by anchor pole forms anchor petrous branch watch box, and anchor cable then is fixed on formed anchor petrous branch watch box to cover to be stablized on the rock stratum.When country rock generation moderate finite deformation, the anchor pole bearing capacity increases, and distortion strengthens.Originally allow and press corresponding carrying of anchor cable and distortion also to increase, but, at first will allow pressure pipe flatten during surrouding rock deformation, make anchor cable distortion when bearing capacity increases keep coordinating with bolt deformation owing to allow the effect of pressure pipe.Can allow country rock that certain distortion is arranged, discharge surrouding rock deformation and can form new equilibrium state, can make anchor cable keep bearing capacity again, avoid destroyed country rock in certain deformation range, can keep homeostasis.
Claims (2)
1. one kind allows the pressure anchor cable, comprise anchor cable cable body (5), be located at the pallet (4) of anchor cable cable body (5), the anchor cable lockset (1) of the afterbody of mooring anchor rustling sound body (5), it is characterized in that: be provided with between described pallet (4) and the anchor cable lockset (1) and allow pressure device, the head of anchor cable cable body (5) is provided with anchoring agent stirring-head (6).
2, according to the described pressure anchor cable that allows of claim 1, it is characterized in that: described allow pressure device by a middle part projection, can provide the pressure pipe (3) and being located at of allowing of the deformation space of 50～100mm allow packing ring (2) formation at pressure pipe (3) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200374599U CN201206470Y (en) | 2008-05-29 | 2008-05-29 | Yield press anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200374599U CN201206470Y (en) | 2008-05-29 | 2008-05-29 | Yield press anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201206470Y true CN201206470Y (en) | 2009-03-11 |
Family
ID=40465537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200374599U Expired - Fee Related CN201206470Y (en) | 2008-05-29 | 2008-05-29 | Yield press anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201206470Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929347A (en) * | 2010-08-17 | 2010-12-29 | 中南大学 | Coordinated-deformation energy-absorption anchor rod suitable for mining high-stress large-deformation rock mass |
| CN102002946A (en) * | 2010-10-23 | 2011-04-06 | 山东科技大学 | Anchor bolt or anchor cable pre-stressed control element and processing and usage method thereof |
| CN102322267A (en) * | 2011-09-12 | 2012-01-18 | 山东科技大学 | Method for preventing and controlling rock burst in soft rock of deep well |
| CN103244162A (en) * | 2013-05-27 | 2013-08-14 | 湖南科技大学 | Compressible base plate device and anchor cable anchorage method by device |
| CN103410543A (en) * | 2013-08-13 | 2013-11-27 | 中国矿业大学 | Pressure yielding internally-grouted anchor cable |
| CN104100281A (en) * | 2014-06-16 | 2014-10-15 | 山东科技大学 | Mining multilevel pressure-relief anti-scouring support device, support system and use methods thereof |
| CN107939428A (en) * | 2017-12-29 | 2018-04-20 | 中天合创能源有限责任公司 | A kind of cable bolting system with impact resistance |
| CN109295973A (en) * | 2018-09-27 | 2019-02-01 | 中国人民解放军军事科学院国防工程研究院 | System and method is surrendered in a kind of head damping of dynamic load prestress anchorage cable |
| CN110924999A (en) * | 2019-12-12 | 2020-03-27 | 山东里能鲁西矿业有限公司 | Anchor-withdrawing yielding device |
| CN111608710A (en) * | 2020-06-09 | 2020-09-01 | 河海大学 | Full-length hollow drainage resistance-increasing type yielding anchor rod |
-
2008
- 2008-05-29 CN CNU2008200374599U patent/CN201206470Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929347A (en) * | 2010-08-17 | 2010-12-29 | 中南大学 | Coordinated-deformation energy-absorption anchor rod suitable for mining high-stress large-deformation rock mass |
| CN102002946A (en) * | 2010-10-23 | 2011-04-06 | 山东科技大学 | Anchor bolt or anchor cable pre-stressed control element and processing and usage method thereof |
| CN102002946B (en) * | 2010-10-23 | 2012-07-25 | 山东科技大学 | Anchor bolt or anchor cable pre-stressed control element and processing and usage method thereof |
| CN102322267A (en) * | 2011-09-12 | 2012-01-18 | 山东科技大学 | Method for preventing and controlling rock burst in soft rock of deep well |
| CN103244162A (en) * | 2013-05-27 | 2013-08-14 | 湖南科技大学 | Compressible base plate device and anchor cable anchorage method by device |
| CN103410543A (en) * | 2013-08-13 | 2013-11-27 | 中国矿业大学 | Pressure yielding internally-grouted anchor cable |
| CN104100281A (en) * | 2014-06-16 | 2014-10-15 | 山东科技大学 | Mining multilevel pressure-relief anti-scouring support device, support system and use methods thereof |
| CN107939428A (en) * | 2017-12-29 | 2018-04-20 | 中天合创能源有限责任公司 | A kind of cable bolting system with impact resistance |
| CN109295973A (en) * | 2018-09-27 | 2019-02-01 | 中国人民解放军军事科学院国防工程研究院 | System and method is surrendered in a kind of head damping of dynamic load prestress anchorage cable |
| CN110924999A (en) * | 2019-12-12 | 2020-03-27 | 山东里能鲁西矿业有限公司 | Anchor-withdrawing yielding device |
| CN111608710A (en) * | 2020-06-09 | 2020-09-01 | 河海大学 | Full-length hollow drainage resistance-increasing type yielding anchor rod |
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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: 20090311 Termination date: 20160529 |