CN107829769A - High-elongation Dynamic Coupling Mine anchorage cable device - Google Patents
High-elongation Dynamic Coupling Mine anchorage cable device Download PDFInfo
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- CN107829769A CN107829769A CN201711252992.7A CN201711252992A CN107829769A CN 107829769 A CN107829769 A CN 107829769A CN 201711252992 A CN201711252992 A CN 201711252992A CN 107829769 A CN107829769 A CN 107829769A
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- anchor cable
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- 230000008878 coupling Effects 0.000 title claims abstract description 21
- 238000010168 coupling process Methods 0.000 title claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 367
- 239000010959 steel Substances 0.000 claims abstract description 367
- 229910000679 solder Inorganic materials 0.000 claims abstract description 91
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000011435 rock Substances 0.000 claims description 28
- 238000004873 anchoring Methods 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 235000010599 Verbascum thapsus Nutrition 0.000 claims description 4
- 244000178289 Verbascum thapsus Species 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000007800 oxidant agent Substances 0.000 description 7
- 230000001590 oxidative effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
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- 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
- E21D21/0006—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by the bolt material
-
- 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
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
-
- 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
- E21D21/008—Anchoring or tensioning means
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of high-elongation Dynamic Coupling Mine anchorage cable device, including anchor cable steel strand wires, the anchor cable disk being successively set on anchor cable steel strand wires, the anchor ring being connected with anchor cable disk, and the rigging intermediate plate being connected with anchor ring；High-elongation Dynamic Coupling Mine anchorage cable device, the end set of section has anchor end of anchorage cable cored wire solder joint in anchor cable；The end set of described anchor cable exposed junction has anchor cable exposed junction cored wire solder joint；The end set of section has anchor end of anchorage cable cored wire solder joint in described anchor cable；The end set of described anchor cable exposed junction has anchor cable exposed junction cored wire solder joint.This invention simplifies the mounting process step of anchor cable, the scope of anchor cable carrying roadway deformation displacement is added, improves the service life in tunnel, extend tunnel reprocesses the cycle, effective usable floor area in tunnel is added, guarantee is provided for the developing direction of deep-well supporting.
Description
Technical field
The present invention relates to coal mine roadway anchor, specially a kind of high-elongation Dynamic Coupling Mine anchorage cable device.
Background technology
Mine anchorage cable bearing strength is big, control country rock scope is big, transports, be easy for installation, is obtained in mine support extensively
Using.Mine anchorage cable bearing strength is that anchor cable steel strand wires tensile strength is big greatly, and elongation percentage is with regard to small while tensile strength is big, typically
The elongation percentage of Mine anchorage cable steel strand wires is 3.5~5.2%.8 meters of anchor cable maximum development length only has 0.28~0.42 meter, anchor pole
Elongation percentage be not less than 20%, 2.6 meters of anchor pole development length is not less than 0.52 meter；So 8 meters of long anchor cables are no more than 2.6 meters
The development length of long anchor pole is big.In the tunnel of anchor pole+Application of Combined Support with Anchor, anchor pole only needs to control the deformation of superficial part country rock
Displacement, anchor cable needs to control superficial part and the total deformation displacement amount of deep wall rock, so anchor cable bears the scope of country rock pulling force more
It is more, it is necessary to elongation percentage it is also bigger, but 8 meters of long anchor cables are big no more than the development length of 2.6 meters of long anchor poles, so in lane
When anchor pole does not afford maximum pull during road deformation displacement, anchor cable has been pulled off, and loses the purpose of combined supporting.If change
Become the elongation percentage that material improves anchor cable, the tensile strength of anchor cable is just with decline.
Frictional force between anchor cable ectonexine steel strand wires is less than the rupture pull force of anchor cable internal layer steel strand wires, so in power transmission
Process stream line ectonexine steel strand wires produce sliding phenomenon.Anchor cable ectonexine steel strand wires produce sliding phenomenon, cause anchor cable outer layer
Steel twists the pulling force born and is more than the pulling force that anchor cable internal layer steel strand wires are born, and as a result anchor cable outer layer steel strand wires are pulled off first.Anchor cable
After outer layer steel strand wires are pulled off, nearby only anchor cable internal layer steel strand wires undertake pulling force to anchor cable outer layer steel strand wires incision position, due to anchor
Rope outer layer steel strand wires incision position is nearby lost between pulling force and anchor cable ectonexine steel strand wires that anchor cable outer layer steel strand wires are shared
Frictional force, so the tensile strength near anchor cable outer layer steel strand wires incision position is minimum, after causing anchor cable outer layer steel strand wires to be pulled off,
The pressure of roadway surrounding rock displacement quickly breaks the anchor cable internal layer steel strand wires near anchor cable outer layer steel strand wires incision position.Roadway surrounding rock
The pressure of displacement first breaks anchor cable outer layer steel strand wires, after break anchor cable internal layer steel strand wires, anchor cable ectonexine steel strand wires can not be simultaneously
The pressure of shared roadway surrounding rock displacement, broken by each priority.Anchor cable ectonexine steel strand wires are successively pulled off, and anchor cable loses
Supporting intensity.
Now be badly in need of a kind of existing larger elongation percentage, anchor cable ectonexine steel strand wires are not broken successively, can shared draw
The anchor cable device of power.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, the invention provides one kind can fabricate simply, and installation makes
With Dynamic Coupling anchor cable device that is convenient, and being capable of high extension.
The object of the present invention is achieved like this：
High-elongation Dynamic Coupling Mine anchorage cable device, including anchor cable steel strand wires, the anchor cable being successively set on anchor cable steel strand wires
Disk 27, the anchor ring 28 being connected with anchor cable disk 27, and the rigging intermediate plate 29 being connected with anchor ring 28；The high-elongation Dynamic Coupling
Section 26 and anchor cable outside rigging intermediate plate 29 are exposed in the anchor cable that Mine anchorage cable includes being anchored at around tunnel in stable rock
End 30；The end set of section 26 has anchor end of anchorage cable cored wire solder joint 33 in described anchor cable；The end of described anchor cable exposed junction 30
Portion is provided with anchor cable exposed junction cored wire solder joint 31；
Described anchor cable steel strand wires include central core 35 and the anchor cable steel strand wires outer layer being wrapped in outside central core 35；Described anchor cable
Steel strand wires outer layer include the first anchor cable outer layer steel strand wires 14, the second anchor cable outer layer steel strand wires 15, the 3rd anchor cable outer layer steel strand wires 16,
4th anchor cable outer layer steel strand wires 17, the 5th anchor cable outer layer steel strand wires 18, the 6th anchor cable outer layer steel strand wires 19, the 7th anchor cable outer layer steel
Twisted wire 20, the 8th anchor cable outer layer steel strand wires 21, the 9th anchor cable outer layer steel strand wires 22, the tenth anchor cable outer layer steel strand wires the 23, the 11st
Anchor cable outer layer steel strand wires 24 and the 12nd anchor cable outer layer steel strand wires 25；Described anchor cable steel strand wires outer layer includes the first anchor cable outer layer
Steel strand wires 14, the second anchor cable outer layer steel strand wires 15, the 3rd anchor cable outer layer steel strand wires 16, the 4th anchor cable outer layer steel strand wires the 17, the 5th
Anchor cable outer layer steel strand wires 18, the 6th anchor cable outer layer steel strand wires 19, the 7th anchor cable outer layer steel strand wires 20, the 8th anchor cable outer layer steel strand wires
21st, the 9th anchor cable outer layer steel strand wires 22, the tenth anchor cable outer layer steel strand wires 23, the 11st anchor cable outer layer steel strand wires 24 and the 12nd anchor
Rope outer layer steel strand wires 25 are that tensile strength is 500~800 MPas, and elongation percentage is not less than 20% steel；
Described central core 35 includes cored wire 1 and the anchor cable steel strand wires internal layer being wrapped in outside cored wire 1；In described anchor cable steel strand wires
Layer is including in the first anchor cable internal layer steel strand wires 2, the second anchor cable internal layer steel strand wires 3, the 3rd anchor cable internal layer steel strand wires 4, the 4th anchor cable
Layer steel strand wires 5, the 5th anchor cable internal layer steel strand wires 6, the 6th anchor cable internal layer steel strand wires 7, the 7th anchor cable internal layer steel strand wires 8, the 8th anchor
Rope internal layer steel strand wires 9, the 9th anchor cable internal layer steel strand wires 10, the tenth anchor cable internal layer steel strand wires 11, the 11st anchor cable internal layer steel strand wires
12 and the 12nd anchor cable internal layer steel strand wires 13；Described the first anchor cable internal layer steel strand wires 2, the second anchor cable internal layer steel strand wires the 3, the 3rd
Anchor cable internal layer steel strand wires 4, the 4th anchor cable internal layer steel strand wires 5, the 5th anchor cable internal layer steel strand wires 6, the 6th anchor cable internal layer steel strand wires 7,
7th anchor cable internal layer steel strand wires 8, the 8th anchor cable internal layer steel strand wires 9, the 9th anchor cable internal layer steel strand wires 10, the tenth anchor cable internal layer steel twist
Line 11, the 11st anchor cable internal layer steel strand wires 12, the 12nd anchor cable internal layer steel strand wires 13 and cored wire 1 are that tensile strength is 1860 MPas
Or 1770 MPas of anchor cable steel strand wires；
In described anchor cable section end in anchor cable is provided with the anchor cable steel strand wires of the close anchor end of anchorage cable cored wire solder joint 33 of section 26
Portion's resin anchoring oxidant layer 32；Section end resin anchoring oxidant layer 32 is Nian Jie with the wall of a borehole in anchor cable；
Section 26 sets and twisted in anchor cable beyond section end resin anchoring oxidant layer 32 to the anchor cable steel between anchor ring 28 in described anchor cable
Line is anchor cable stretch section A；
The preparation method of described high-elongation Dynamic Coupling Mine anchorage cable device is：Anchor cable steel strand wires outer layer is cut out 2~3 lis
Rice, leaves anchor cable steel strand wires internal layer and cored wire 1, then welds one with the both ends head of electric weld handle anchor cable steel strand wires internal layer and cored wire 1
Under, anchor cable cored wire solder joint is processed into, i.e. the anchored end of anchor cable steel strand wires and exposed junction is all processed respectively, respectively obtains anchor cable
Exposed cored wire solder joint 31 and anchor end of anchorage cable cored wire solder joint 33；
The application method of described high-elongation Dynamic Coupling Mine anchorage cable device is：By the end anchorage of section in anchor cable to tunnel
In the stable rock of surrounding, the other end withstands anchor cable disk by rigging intermediate plate 29, the clamping anchor cable steel strand wires of anchor ring 28, anchor ring 28
27. anchor cable disk control roadway surrounding rock slides deformation, sliding resistance directly is produced on each layer country rock sliding surface, structural plane is in pressure
Tight state；After anchor cable installs, steel layer outside the first anchor cable outer layer steel strand wires 14, the second anchor cable anchor cable steel strand wires exposed junction 30
Twisted wire 15, the 3rd anchor cable outer layer steel strand wires 16, the 4th anchor cable outer layer steel strand wires 17, the 5th anchor cable outer layer steel strand wires 18, the 6th anchor
Rope outer layer steel strand wires 19, the 7th anchor cable outer layer steel strand wires 20, the 8th anchor cable outer layer steel strand wires 21, the 9th anchor cable outer layer steel strand wires
22nd, the tenth anchor cable outer layer steel strand wires 23, the 11st anchor cable outer layer steel strand wires 24 and the 12nd anchor cable outer layer steel strand wires 25 are cut, and are stayed
Lower central core 35, the bending of central core 35, it is hung on top plate, as shown in figure 3, being deformed when roadway surrounding rock slides, anchor cable steel is twisted
When line drawing section A produces pulling force, cored wire solder joint 33 slides inwards, anchor cable outer layer steel strand wires is supportted big, the head of anchor end of anchorage cable
Expansion；It is hardened because the resin anchoring agent of anchor end of anchorage cable has been cured, the inwall of anchor cable drilling is changeless, and anchor cable bores
The resin anchoring agent that hole wall and having been cured is hardened prevents the expansion of anchor cable outer layer steel strand wires, that is, prevents anchor end of anchorage cable cored wire solder joint
33 slide inwards；Anchored end cored wire solder joint 33 plays the effect of chock, and the head of wedging anchor end of anchorage cable, anchor cable steel strand wires will not
Slided to outside anchor cable drilling, i.e. the chock effect of anchored end cored wire solder joint 33 increases the anchor force of anchor cable；Anchor cable stretch section A by
To during stretching, central core 35 along sliding on the inside of anchor cable outer layer steel strand wires inwards, and the subsequent exposed cored wire solder joint 31 of anchor cable is along outside anchor cable
Slided inwards on the inside of layer steel strand wires, the exposed cored wire solder joint 31 of anchor cable supports anchor cable outer layer steel strand wires greatly, and anchor cable exposed junction 30 is swollen
It is swollen, the difference of solder joint expansion 36. ectonexine Method of Steel Strand Stretching deflections of bag is formed, with the increase of roadway surrounding rock displacement amount, anchor
Also with increasing, the exposed cored wire solder joint 31 of anchor cable continues to slide inwards along on the inside of anchor cable outer layer steel strand wires the amount of tension that rope is subject to,
Solder joint expansion bag 36 moves up simultaneously.When the exposed cored wire solder joint 31 of anchor cable is slided at rigging intermediate plate 29, solder joint expansion is wrapped
36 are moved at rigging intermediate plate 29 simultaneously.Due to the control after the clamping anchor cable steel strand wires of rigging intermediate plate 29 by anchor ring 28, rigging
The internal diameter of intermediate plate is changeless.The external diameter of solder joint expansion bag 36 is more than the external diameter of anchor cable steel strand wires, and solder joint expansion bag 36
The big taper of the small following of top, thus when solder joint expansion bag 36 be moved at rigging intermediate plate 29 when, solder joint expansion bag 36 just as
Chock is equally stuck in the collar extension of rigging intermediate plate 29.When solder joint expansion bag 36 is stuck in the collar extension of rigging intermediate plate 29, the exposed cored wire of anchor cable
Solder joint 31 is also stuck in the collar extension of rigging intermediate plate 29；The exposed cored wire solder joint 31 of anchor cable is the small taper broad in the middle in two, the anchor of taper
The exposed cored wire solder joint 31 of rope and anchor cable outer layer steel strand wires the first anchor cable outer layer steel strand wires 14, the second anchor cable outer layer steel strand wires 15,
Three anchor cable outer layer steel strand wires 16, the 4th anchor cable outer layer steel strand wires 17, the 5th anchor cable outer layer steel strand wires 18, the 6th anchor cable outer layer steel twist
Line 19, the 7th anchor cable outer layer steel strand wires 20, the 8th anchor cable outer layer steel strand wires 21, the 9th anchor cable outer layer steel strand wires 22, the tenth anchor cable
Outer layer steel strand wires 23, the 11st anchor cable outer layer steel strand wires 24 and the 12nd anchor cable outer layer steel strand wires 25, anchor cable central core is clamped,
The amount of tension being subject to anchor cable steel strand wires increases, and the exposed cored wire solder joint 31 of anchor cable is as chock anchor cable ectonexine steel strand wires
Be stuck in rigging intermediate plate 29 to move inwards.
Positive beneficial effect：Invention increases the scope of anchor cable carrying roadway deformation displacement, the use in tunnel is improved
The time limit, extend tunnel reprocesses the cycle, adds effective usable floor area in tunnel, and the developing direction for deep-well supporting provides
Ensure.
Brief description of the drawings
Fig. 1 is the structural representation one of the present invention；
Fig. 2 is the structural representation two of the present invention；
Fig. 3 is the structural representation three of the present invention；
Fig. 4 is the structural representation four of the present invention；
Fig. 5 is the structural representation five of the present invention；
Fig. 6 is the structural representation six of the present invention；
It is in figure：Cored wire 1, the first anchor cable internal layer steel strand wires 2, the second anchor cable internal layer steel strand wires 3, the 3rd anchor cable internal layer steel strand wires 4,
4th anchor cable internal layer steel strand wires 5, the 5th anchor cable internal layer steel strand wires 6, the 6th anchor cable internal layer steel strand wires 7, the 7th anchor cable internal layer steel twist
Line 8, the 8th anchor cable internal layer steel strand wires 9, the 9th anchor cable internal layer steel strand wires 10, the tenth anchor cable internal layer steel strand wires 11, the 11st anchor cable
Internal layer steel strand wires 12, the 12nd anchor cable internal layer steel strand wires 13, the first anchor cable outer layer steel strand wires 14, the second anchor cable outer layer steel strand wires
15th, the 3rd anchor cable outer layer steel strand wires 16, the 4th anchor cable outer layer steel strand wires 17, the 5th anchor cable outer layer steel strand wires 18, outside the 6th anchor cable
Layer steel strand wires 19, the 7th anchor cable outer layer steel strand wires 20, the 8th anchor cable outer layer steel strand wires 21, the 9th anchor cable outer layer steel strand wires 22, the
Section 26 in ten anchor cable outer layer steel strand wires 23, the 11st anchor cable outer layer steel strand wires 24, the 12nd anchor cable outer layer steel strand wires 25, anchor cable,
Section end resin in anchor cable disk 27, anchor ring 28, rigging intermediate plate 29, anchor cable exposed junction 30, anchor cable exposed junction cored wire solder joint 31, anchor cable
Anchor oxidant layer 32, anchor end of anchorage cable cored wire solder joint 33, central core 35, solder joint expansion bag 36.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described further：
As shown in figures 1 to 6, high-elongation Dynamic Coupling Mine anchorage cable device, including anchor cable steel strand wires, are successively set on anchor cable steel
Anchor cable disk 27 on twisted wire, the anchor ring 28 being connected with anchor cable disk 27, and the rigging intermediate plate 29 being connected with anchor ring 28；Described anchor
Rope steel strand wires include being arranged on anchor cable disk 27 with section 26 in the inner anchor cable being anchored at around tunnel in stable rock and positioned at rigging
Anchor cable exposed junction 30 outside intermediate plate 29；The end set of section 26 has anchor end of anchorage cable cored wire solder joint 33 in described anchor cable；It is described
The end set of anchor cable exposed junction 30 have anchor cable exposed junction cored wire solder joint 31；
As shown in fig. 6, described anchor cable steel strand wires include central core 35 and the anchor cable steel strand wires outer layer being wrapped in outside central core 35；
Described anchor cable steel strand wires outer layer includes the first anchor cable outer layer steel strand wires 14, the second anchor cable outer layer steel strand wires 15, outside the 3rd anchor cable
Layer steel strand wires 16, the 4th anchor cable outer layer steel strand wires 17, the 5th anchor cable outer layer steel strand wires 18, the 6th anchor cable outer layer steel strand wires 19, the
Seven anchor cable outer layer steel strand wires 20, the 8th anchor cable outer layer steel strand wires 21, the 9th anchor cable outer layer steel strand wires 22, the tenth anchor cable outer layer steel twist
Line 23, the 11st anchor cable outer layer steel strand wires 24 and the 12nd anchor cable outer layer steel strand wires 25；Described anchor cable steel strand wires outer layer includes
First anchor cable outer layer steel strand wires 14, the second anchor cable outer layer steel strand wires 15, the 3rd anchor cable outer layer steel strand wires 16, the 4th anchor cable outer layer steel
Twisted wire 17, the 5th anchor cable outer layer steel strand wires 18, the 6th anchor cable outer layer steel strand wires 19, the 7th anchor cable outer layer steel strand wires 20, the 8th anchor
Rope outer layer steel strand wires 21, the 9th anchor cable outer layer steel strand wires 22, the tenth anchor cable outer layer steel strand wires 23, the 11st anchor cable outer layer steel strand wires
24 and the 12nd anchor cable outer layer steel strand wires 25 are that tensile strength is 500~800 MPas, and elongation percentage is not less than 20% steel；
Described central core 35 includes cored wire 1 and the anchor cable steel strand wires internal layer being wrapped in outside cored wire 1；In described anchor cable steel strand wires
Layer is including in the first anchor cable internal layer steel strand wires 2, the second anchor cable internal layer steel strand wires 3, the 3rd anchor cable internal layer steel strand wires 4, the 4th anchor cable
Layer steel strand wires 5, the 5th anchor cable internal layer steel strand wires 6, the 6th anchor cable internal layer steel strand wires 7, the 7th anchor cable internal layer steel strand wires 8, the 8th anchor
Rope internal layer steel strand wires 9, the 9th anchor cable internal layer steel strand wires 10, the tenth anchor cable internal layer steel strand wires 11, the 11st anchor cable internal layer steel strand wires
12 and the 12nd anchor cable internal layer steel strand wires 13；Described the first anchor cable internal layer steel strand wires 2, the second anchor cable internal layer steel strand wires the 3, the 3rd
Anchor cable internal layer steel strand wires 4, the 4th anchor cable internal layer steel strand wires 5, the 5th anchor cable internal layer steel strand wires 6, the 6th anchor cable internal layer steel strand wires 7,
7th anchor cable internal layer steel strand wires 8, the 8th anchor cable internal layer steel strand wires 9, the 9th anchor cable internal layer steel strand wires 10, the tenth anchor cable internal layer steel twist
Line 11, the 11st anchor cable internal layer steel strand wires 12, the 12nd anchor cable internal layer steel strand wires 13 and cored wire 1 are that tensile strength is 1860 MPas
Or 1770 MPas of anchor cable steel strand wires；The anchor cable steel strand wires of the close anchor end of anchorage cable cored wire solder joint 33 of section 26 in described anchor cable
On be provided with section end resin anchoring oxidant layer 32 in anchor cable；Section end resin anchoring oxidant layer 32 is Nian Jie with the wall of a borehole in anchor cable；
In described anchor cable in the anchor cable of section 26 beyond section end resin anchoring oxidant layer 32 to the anchor cable steel strand wires between anchor ring 28
For anchor cable stretch section A；
The preparation method of described high-elongation Dynamic Coupling Mine anchorage cable device is：Anchor cable steel strand wires outer layer is cut out 2~3 lis
Rice, leaves anchor cable steel strand wires internal layer and cored wire 1, then welds one with the both ends head of electric weld handle anchor cable steel strand wires internal layer and cored wire 1
Under, anchor cable cored wire solder joint is processed into, i.e. the anchored end of anchor cable steel strand wires and exposed junction is all processed respectively, respectively obtains anchor cable
Exposed cored wire solder joint 31 and anchor end of anchorage cable cored wire solder joint 33；
The application method of described high-elongation Dynamic Coupling Mine anchorage cable device is：The end anchorage of section is all to tunnel in anchor cable
Enclose in stable rock, the other end withstands anchor cable disk 27. by rigging intermediate plate 29, the clamping anchor cable steel strand wires of anchor ring 28, anchor ring 28
Anchor cable disk control roadway surrounding rock slides deformation, directly produces sliding resistance on each layer country rock sliding surface, is in structural plane and compresses
State.
Caused pulling force is on anchor cable steel strand wires：Groove on rigging intermediate plate is transmitted to anchor cable outer layer steel strand wires, anchor cable internal layer
The pulling force of steel strand wires relies on the frictional force transmission of contact surface between anchor cable ectonexine steel strand wires；Anchor cable ectonexine steel strand wires are indirectly
The frictional force of contacting surface is less than the Fracture Force of anchor cable central core 35, so when anchor cable steel strand wires are stretched, between each ectonexine
Relative sliding phenomenon can be produced, i.e. the amount of being stretched of anchor cable outer layer steel strand wires 14~25 is big, and outside slippage is big；
Pulling force is produced by surrouding rock deformation displacement after anchor cable installation, anchor cable stretch section A is stretched.Because outer layer steel strand wires extend
Rate is big, and central core elongation percentage is small, and at rock deformation less initial stage, outer layer steel strand wires and central core can all produce a small amount of stretching
Deformation, the outer layer steel strand wires amount of being stretched is big, and the central core amount of being stretched is small.Due to the difference of ectonexine Method of Steel Strand Stretching deflection,
Slide displacement is produced between outer layer steel strand wires and central core.After slide displacement being produced between ectonexine steel strand wires, the exposed core of anchor cable
Wire bonding point 31 and anchor end of anchorage cable cored wire solder joint 33 slide inwards along on the inside of anchor cable outer layer steel strand wires.Anchor end of anchorage cable cored wire welds
Point 33 slides inwards along on the inside of anchor cable outer layer steel strand wires, and cored wire solder joint 33 slides inwards, anchor cable outer layer steel strand wires is supportted big, anchor cable
The head expansion of anchored end.It is hardened because the resin anchoring agent of anchor end of anchorage cable has been cured, the inwall of anchor cable drilling is fixed
It is constant, anchor cable the wall of a borehole and have been cured the resin anchoring agent being hardened and prevent the expansion of anchor cable outer layer steel strand wires, that is, prevent anchor cable
Anchored end cored wire solder joint 33 slides inwards.Anchored end cored wire solder joint 33 plays the effect of chock, the head of wedging anchor end of anchorage cable,
Anchor cable steel strand wires slide outside will not being drilled to anchor cable, i.e. the chock effect of anchored end cored wire solder joint 33 increases the anchoring of anchor cable
Power, effectively solve anchor cable steel strand wires smooth outer surface, the low problem being easily drawn out of anchor force.
Anchor cable outer layer steel strand wires 14~25, are cut as shown in Figure 2 and leave anchor cable steel strand wires by such as Fig. 1 after anchor cable installs
The central core 35 of internal layer and cored wire composition.The diameter of central core 35 of anchor cable steel strand wires internal layer and cored wire composition is smaller, easy bending,
After the bending of central core 35, it is hung in iron wire on top plate as shown in figure 3, effective usable floor area in tunnel can be improved, reduces supporting
The space in tunnel is taken, roadway excavation amount can be reduced by reducing the space that supporting takes, and reduction roadway excavation amount can reduce tunnel and open
The disturbance to roadway surrounding rock is dug, it is stable to improve roadway surrounding rock.
When anchor cable stretch section A is stretched, central core 35 slides inwards along on the inside of anchor cable outer layer steel strand wires, outside subsequent anchor cable
Dew cored wire solder joint 31 slides inwards along on the inside of anchor cable outer layer steel strand wires, and the exposed cored wire solder joint 31 of anchor cable is anchor cable outer layer steel strand wires
Support is big, and anchor cable exposed junction 30 expands, and the difference of solder joint expansion 36. ectonexine Method of Steel Strand Stretching deflections of bag is formed, with tunnel
The increase of displacement of wall rock, the amount of tension that anchor cable is subject to continue along anchor cable outer layer also with increasing, the exposed cored wire solder joint 31 of anchor cable
Slided inwards on the inside of steel strand wires, solder joint expansion bag 36 moves up simultaneously.When the exposed cored wire solder joint 31 of anchor cable slides into rigging folder
At piece 29, solder joint expansion bag 36 is moved at rigging intermediate plate 29 simultaneously.Due to rigging intermediate plate 29 clamp anchor cable steel strand wires after by
The control of anchor ring 28, the internal diameter of rigging intermediate plate is changeless.The external diameter of solder joint expansion bag 36 is more than the outer of anchor cable steel strand wires
Footpath, and solder joint expansion bag 36 is the big taper of the small following of top, so when solder joint expansion bag 36 is moved at rigging intermediate plate 29,
Solder joint expansion bag 36 is stuck in the collar extension of rigging intermediate plate 29 just as chock.Solder joint expansion bag 36 is stuck in the collar extension of rigging intermediate plate 29
When, the exposed cored wire solder joint 31 of anchor cable is also stuck in the collar extension of rigging intermediate plate 29.The exposed cored wire solder joint 31 of anchor cable is that two is small broad in the middle
Taper, the exposed cored wire solder joint 31 of anchor cable and anchor cable outer layer steel strand wires 14~25 of taper are clamped by lockset intermediate plate, with anchor cable
The amount of tension that steel strand wires are subject to is increased, and anchor cable ectonexine steel strand wires are stuck in rigging by the exposed cored wire solder joint 31 of anchor cable as chock
It can not be moved inwards in intermediate plate 29.
By before the exposed wedging of cored wire solder joint 31 of the anchor cable of taper, the outer layer steel strand wires of anchor cable extend the outer layer steel strand wires of anchor cable
Amount is big, and the elongation of internal layer steel strand wires and cored wire is small.The pulling force that anchor cable outer layer steel strand wires are born is passed after rigging intermediate plate 29 clamps
Pass；The pulling force that anchor cable internal layer steel strand wires are born is the frictional force transmission between anchor cable ectonexine steel strand wires；Anchor cable cored wire 1 is held
The pulling force received is the frictional force transmission between anchor cable internal layer steel strand wires and cored wire.The ectonexine steel strand wires of anchor cable are by the anchor of taper
After the exposed wedging of cored wire solder joint 31 of rope, the pulling force that the ectonexine steel strand wires and cored wire of anchor cable undertake is by 29 direct wedge of rigging intermediate plate
Tightly add the frictional force shared of each layer.
Anchor cable outer layer steel strand wires are the larger steel of elongation percentage, and the ectonexine steel strand wires of anchor cable are by the exposed core of the anchor cable of taper
Before the wedging of wire bonding point 31, the outer layer steel strand wires of anchor cable have generated part stretcher strain, and the outer layer steel strand wires of anchor cable are by taper
The exposed wedging of cored wire solder joint 31 of anchor cable after, the internal layer steel strand wires of remaining stretchable deflection and anchor cable and cored wire it is stretchable
Deflection is basically identical, can farthest control the displacement of roadway surrounding rock, and anchor cable is not broken by too early, in anchor cable
Outer layer steel strand wires and the pulling force of cored wire carrying realize Dynamic Coupling.Anchor cable outer layer steel strand wires and internal layer steel strand wires and cored wire prolong
Stretch that rate is poor, the distance of the exposed cored wire solder joint 31 of anchor cable and rigging intermediate plate can be used to adjust, to reach anchor cable ectonexine steel strand wires and core
The Dynamic Coupling of line carrying.High-elongation Dynamic Coupling anchor cable construction mounting means adds anchor cable and held as common anchor cable
The scope of roadway deformation displacement is carried, improves the service life in tunnel, extend tunnel reprocesses the cycle, and add tunnel has
Usable floor area is imitated, is the developing direction of deep-well supporting.
Solder joint expansion bag 36 as shown in Figure 4, Figure 5 is due to roadway surrounding rock displacement, after anchor cable is stretched, the exposed core of anchor cable
Wire bonding is selected to be moved at anchor rope rigging intermediate plate along on the inside of anchor cable internal layer steel strand wires, forms solder joint expansion bag；
Above case study on implementation is merely to illustrate the preferred embodiment of the present invention, but the present invention is not limited to above-mentioned embodiment,
In the field those of ordinary skill possessed knowledge, that is made within the spirit and principles in the present invention any repaiies
Change, equivalent substitute and improvement etc., be regarded as the protection domain of the application.
Claims (5)
1. high-elongation Dynamic Coupling Mine anchorage cable device, it is characterised in that：The end set of section has anchorage cable anchoring in anchor cable
Hold cored wire solder joint；The end set of described anchor cable exposed junction has anchor cable exposed junction cored wire solder joint.
2. high-elongation Dynamic Coupling Mine anchorage cable device according to claim 1, it is characterised in that：Described anchor cable steel
Twisted wire includes central core and the anchor cable steel strand wires outer layer being wrapped in outside central core；Described anchor cable steel strand wires outer layer includes the first anchor
Rope outer layer steel strand wires, the second anchor cable outer layer steel strand wires, the 3rd anchor cable outer layer steel strand wires, the 4th anchor cable outer layer steel strand wires, the 5th anchor
Rope outer layer steel strand wires, the 6th anchor cable outer layer steel strand wires, the 7th anchor cable outer layer steel strand wires, the 8th anchor cable outer layer steel strand wires, the 9th anchor
Rope outer layer steel strand wires, the tenth anchor cable outer layer steel strand wires, the 11st anchor cable outer layer steel strand wires and the 12nd anchor cable outer layer steel strand wires；Institute
The anchor cable steel strand wires outer layer stated includes the first anchor cable outer layer steel strand wires, the second anchor cable outer layer steel strand wires, the 3rd anchor cable outer layer steel and twisted
Line, the 4th anchor cable outer layer steel strand wires, the 5th anchor cable outer layer steel strand wires, the 6th anchor cable outer layer steel strand wires, the 7th anchor cable outer layer steel twist
Line, the 8th anchor cable outer layer steel strand wires, the 9th anchor cable outer layer steel strand wires, the tenth anchor cable outer layer steel strand wires, the 11st anchor cable outer layer steel
Twisted wire and the 12nd anchor cable outer layer steel strand wires are that tensile strength is 500~800 MPas, and elongation percentage is not less than 20% steel.
3. high-elongation Dynamic Coupling Mine anchorage cable device according to claim 1, it is characterised in that：Described central core
Including cored wire and the anchor cable steel strand wires internal layer being wrapped in outside cored wire；Described anchor cable steel strand wires internal layer includes the first anchor cable internal layer steel
Twisted wire, the second anchor cable internal layer steel strand wires, the 3rd anchor cable internal layer steel strand wires, the 4th anchor cable internal layer steel strand wires, the 5th anchor cable internal layer steel
Twisted wire, the 6th anchor cable internal layer steel strand wires, the 7th anchor cable internal layer steel strand wires, the 8th anchor cable internal layer steel strand wires, the 9th anchor cable internal layer steel
Twisted wire, the tenth anchor cable internal layer steel strand wires, the 11st anchor cable internal layer steel strand wires and the 12nd anchor cable internal layer steel strand wires；Described first
Anchor cable internal layer steel strand wires, the second anchor cable internal layer steel strand wires, the 3rd anchor cable internal layer steel strand wires, the 4th anchor cable internal layer steel strand wires, the 5th
Anchor cable internal layer steel strand wires, the 6th anchor cable internal layer steel strand wires, the 7th anchor cable internal layer steel strand wires, the 8th anchor cable internal layer steel strand wires, the 9th
Anchor cable internal layer steel strand wires, the tenth anchor cable internal layer steel strand wires, the 11st anchor cable internal layer steel strand wires, the 12nd anchor cable internal layer steel strand wires and
Cored wire is the anchor cable steel strand wires that tensile strength is 1860 MPas or 1770 MPas.
4. the preparation method of high-elongation Dynamic Coupling Mine anchorage cable device as claimed in claim 1, it is characterised in that：By anchor
Rope steel strand wires outer layer cuts out 2~3 centimetres, leaves anchor cable steel strand wires internal layer and cored wire, then with electric weld handle anchor cable steel strand wires internal layer
Welded with the head of cored wire, be processed into anchor cable cored wire solder joint, be i.e. the anchored end of anchor cable steel strand wires and exposed junction is all carried out respectively
Processing, respectively obtains the exposed cored wire solder joint of anchor cable and anchor end of anchorage cable cored wire solder joint.
5. the application method of high-elongation Dynamic Coupling Mine anchorage cable device as claimed in claim 1, it is characterised in that：By anchor
The end anchorage of section is into stable rock around tunnel in rope, the other end by rigging intermediate plate, anchor ring clamping anchor cable steel strand wires,
Anchor ring withstands anchor cable disk, and anchor cable disk control roadway surrounding rock slides deformation, directly produces sliding resistance on each layer country rock sliding surface, make
Structural plane is in impaction state；After anchor cable installs, the first anchor cable outer layer steel strand wires, the second anchor of anchor cable steel strand wires exposed junction
Rope outer layer steel strand wires, the 3rd anchor cable outer layer steel strand wires, the 4th anchor cable outer layer steel strand wires, the 5th anchor cable outer layer steel strand wires, the 6th anchor
Rope outer layer steel strand wires, the 7th anchor cable outer layer steel strand wires, the 8th anchor cable outer layer steel strand wires, the 9th anchor cable outer layer steel strand wires, the tenth anchor
Rope outer layer steel strand wires, the 11st anchor cable outer layer steel strand wires and the 12nd anchor cable outer layer steel strand wires are cut, and central core are left, center
Layer bending, is hung on top plate；Cored wire solder joint slides inwards, anchor cable outer layer steel strand wires is supportted big, the head expansion of anchor end of anchorage cable；
It is hardened because the resin anchoring agent of anchor end of anchorage cable has been cured, the inwall of anchor cable drilling is changeless, anchor cable the wall of a borehole
The expansion of anchor cable outer layer steel strand wires is prevented with the resin anchoring agent that is hardened is had been cured, that is, prevents anchor end of anchorage cable cored wire solder joint inwards
Slide；Anchored end cored wire solder joint plays the effect of chock, the head of wedging anchor end of anchorage cable, and anchor cable steel strand wires will not bore to anchor cable
Slided outside hole, i.e. the chock effect of anchored end cored wire solder joint increases the anchor force of anchor cable；When anchor cable stretch section A is stretched,
Central core along sliding on the inside of anchor cable outer layer steel strand wires inwards, and the subsequent exposed cored wire solder joint of anchor cable is along on the inside of anchor cable outer layer steel strand wires
Sliding inwards, the exposed cored wire solder joint of anchor cable supports anchor cable outer layer steel strand wires big, anchor cable exposed junction expansion, forms solder joint expansion bag,
The difference of ectonexine Method of Steel Strand Stretching deflection, with the increase of roadway surrounding rock displacement amount, amount of tension that anchor cable is subject to also with
Increase, the exposed cored wire solder joint of anchor cable continues to slide inwards along on the inside of anchor cable outer layer steel strand wires, and solder joint expansion bag is simultaneously to moving up
It is dynamic；When the exposed cored wire solder joint of anchor cable is slided at rigging intermediate plate, solder joint expansion bag is moved at rigging intermediate plate simultaneously；Due to rope
Tool intermediate plate is controlled after clamping anchor cable steel strand wires by anchor ring, and the internal diameter of rigging intermediate plate is changeless；Solder joint expansion bag
External diameter is more than the external diameter of anchor cable steel strand wires, and solder joint expansion bag is the big taper of the small following of top, so when solder joint expansion bag moves
When moving at rigging intermediate plate, solder joint expansion bag is stuck in the collar extension of rigging intermediate plate just as chock；Solder joint expansion bag is stuck in rigging
During the collar extension of intermediate plate, the exposed cored wire solder joint of anchor cable is also stuck in the collar extension of rigging intermediate plate；The exposed cored wire solder joint of anchor cable be two it is small in
Between big taper, the exposed cored wire solder joint of anchor cable and anchor cable outer layer steel strand wires the first anchor cable outer layer steel strand wires, the second anchor cable of taper
Outer layer steel strand wires, the 3rd anchor cable outer layer steel strand wires, the 4th anchor cable outer layer steel strand wires, the 5th anchor cable outer layer steel strand wires, the 6th anchor cable
Outer layer steel strand wires, the 7th anchor cable outer layer steel strand wires, the 8th anchor cable outer layer steel strand wires, the 9th anchor cable outer layer steel strand wires, the tenth anchor cable
Outer layer steel strand wires, the 11st anchor cable outer layer steel strand wires and the 12nd anchor cable outer layer steel strand wires are clamped by rigging intermediate plate, with anchor cable
The amount of tension that steel strand wires are subject to is increased, and anchor cable outer layer steel strand wires are stuck in rigging intermediate plate by the exposed cored wire solder joint of anchor cable as chock
It is interior to move inwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711252992.7A CN107829769A (en) | 2017-12-02 | 2017-12-02 | High-elongation Dynamic Coupling Mine anchorage cable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711252992.7A CN107829769A (en) | 2017-12-02 | 2017-12-02 | High-elongation Dynamic Coupling Mine anchorage cable device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107829769A true CN107829769A (en) | 2018-03-23 |
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|---|---|---|---|
| CN201711252992.7A Withdrawn CN107829769A (en) | 2017-12-02 | 2017-12-02 | High-elongation Dynamic Coupling Mine anchorage cable device |
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| Country | Link |
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| CN (1) | CN107829769A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022198269A1 (en) * | 2021-03-23 | 2022-09-29 | Cmte Development Limited | A carbon fibre rock bolt |
-
2017
- 2017-12-02 CN CN201711252992.7A patent/CN107829769A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022198269A1 (en) * | 2021-03-23 | 2022-09-29 | Cmte Development Limited | A carbon fibre rock bolt |
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Application publication date: 20180323 |