CN109026103A - A kind of expanding extrusion friction anchor shaft anchor cable structure - Google Patents
A kind of expanding extrusion friction anchor shaft anchor cable structure Download PDFInfo
- Publication number
- CN109026103A CN109026103A CN201810832757.5A CN201810832757A CN109026103A CN 109026103 A CN109026103 A CN 109026103A CN 201810832757 A CN201810832757 A CN 201810832757A CN 109026103 A CN109026103 A CN 109026103A
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- anchor
- anchor cable
- head
- expanding
- cable
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- 238000001125 extrusion Methods 0.000 title claims abstract description 31
- 238000000465 moulding Methods 0.000 claims description 6
- 230000008093 supporting effect Effects 0.000 abstract description 26
- 239000011435 rock Substances 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003245 coal Substances 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- 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
- E21D21/0073—Anchoring-bolts having an inflatable sleeve, e.g. hollow sleeve expanded by a fluid
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A kind of expanding extrusion friction anchor shaft anchor cable structure belongs to the supporting of coal and rock power and soft rock supporting technical field, including casing, major diameter area, expanding area, path area, nut, pallet, limiter, the body of rod, cable body, blender, "-" type groove, intermediate plate, guide groove and anchorage, the present invention passes through anchor pole tube expander or anchor cable tube expander and the expanding extruding of casing, friction generates constant-resistance, deflection is provided by the Relative sliding of anchor pole tube expander or anchor cable tube expander, not only high supporting constant-resistance centainly is provided to by supporting country rock body, make to be in three dimension stress stress state always by supporting country rock body, and then form the annular supporting pressure arch of higher caliper, and it can also be slid by the expanding extrusion friction body of rod or the axial of cable body structure, with by supporting country rock body cooperative transformation, absorb a certain amount of strain energy of distortion and impact energy, finally reach To constant resistance supporting and the effect of resigning energy-absorbing supporting, ensured to the full extent by the stability of supporting country rock body.
Description
Technical field
The invention belongs to the supportings of coal and rock power and soft rock supporting technical field, and in particular to a kind of expanding extrusion friction anchor
Bar anchor cable structure.
Background technique
In coal mine, metal mine, water conservancy, tunnel and other geotechnical engineerings, anchor pole is that kind is efficient and widely used
Active support component.However as China's economic development, project scale constantly expands, the geological conditions faced also more sophisticated.
In superficial part rock mass engineering project, in external factors such as earthquake, artificial disturbance, water or because the internal factors such as rock mass itself dilatancy act on
Under, rock mass loses bearing capacity, the disasters such as large deformation, landslide, landslide occurs；The rock mass that deep is under high-ground stress state is easy
The disasters such as soft rock large deformation occur, meanwhile, the accidents such as bump, rock burst, mine shake occur again and again, and conventional support anchor rod extends
Rate is low, impact resistance is poor, and anchor pole fracture Problem of Failure takes place frequently and seriously.Therefore, Practical Project there is an urgent need to can provide compared with
High constant-resistance, while again with the anchor bar/anchor cable of moderate finite deformation ability.
The Chinese patent of Patent No. 201010196197.2 discloses a kind of constant resistance and large deformation anchor rod, in constant-resistance device
Surface is equipped with the helicitic texture matched with the body of rod, by shearing constant-resistance device screw thread and squeezes the offer work resistance of constant-resistance device
Power, but the screw thread that constant-resistance can be made unstable, and cut during shearing screw thread can generate pile up effect, cause the body of rod difficult
To slide axially, malformation ability is influenced, meanwhile, when large deformation occurs by the rock mass of supporting, the screw thread of accumulation can make
The working resistance of anchor pole steeply rises, or even the problem of anchor pole fracture is failed occurs.In Patent No. 201410483046.3
State's patent discloses a kind of extruding, friction type energy absorbing bolt, squeezes energy-absorbing lining pipe and friction pylon by wedge-shaped pylon
It is contacted with the energy-absorbing lining pipe being extruded and generates working resistance, but in extrusion process, due to wedge-shaped pylon and polygon lining
Pipe or and polygonal cannulation from line-line contact be transitioned into plane-plane contact, keep working resistance unstable, and energy-absorbing lining pipe is thin-walled
Pipe is also easy to produce progressive buckling by axial pressure during extrusion friction, makes structure extrusion friction disabler, destroys knot
Structure stability.The Chinese patent of Patent No. 201710556137.9 discloses a kind of extrusion friction type constant-resistance and allows pressure large deformation anchor
Bar provides constant-resistance to casing extrusion friction by steel ball, but contact of its steel ball with casing contacts for dotted line, contact area
It is smaller, thus the constant-resistance generated is smaller, and steel ball and non-integral component, single or multiple steel balls will lead to when destroying the body of rod by
Power is uneven, destroys anchor pole working performance, easily generation unstable failure.
In short, existing routine anchor pole elongation percentage is low, impact resistance is poor is difficult to meet engine request, and existing big change
Shape energy-absorption anchor rod leads to that constant-resistance is unstable or the easy unstability of structure due to the defect in respective principle and structure, and effect is not very
It is ideal.
Summary of the invention
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of expanding extrusion friction anchor shaft anchor cable structure is divided into external and built-in, and external includes casing, casing packet
Major diameter area, expanding area and path area are included, described sleeve pipe major diameter area outer wall is provided with nut and pallet, and described sleeve pipe path area is separate
Expanding area one end is provided with limiter, and the expanding area's inner wall of described sleeve pipe is provided with anchor pole tube expander or anchor cable tube expander, anchor pole are swollen
Pipe device inner hole is provided with the body of rod, and anchor cable tube expander inner hole is provided with cable body；
Built-in includes casing, and casing includes major diameter area, expanding area and path area, and described sleeve pipe path area is far from expanding area
One end inner hole is provided with limiter, and described sleeve pipe major diameter area is provided with blender, and the expanding area's inner wall of described sleeve pipe is provided with anchor pole
Tube expander or anchor cable tube expander, anchor pole tube expander inner hole are provided with the body of rod, and body of rod one end is fitted closely with blender inner end, the body of rod
Other end outer wall is provided with pallet and nut, and pallet is close to casing one end；The anchor cable tube expander inner hole is provided with cable body, rope
Body one end is fitted closely with blender inner end, and the cable body other end is provided with pallet and anchorage, and pallet is close to casing one end.
External described sleeve pipe, casing major diameter area are provided with external screw thread, built-in described sleeve pipe, and casing major diameter area is provided with
Internal screw thread.
The limiter is an integral molding structure with casing path area or limiter is spirally connected with casing path area, and limiter
Mesoporous internal diameter is greater than the body of rod or cable body outer diameter.
The anchor pole tube expander includes the swollen head of anchor pole truncated cone-shaped and anchor pole cylinder fixing head, head big end that anchor pole truncated cone-shaped is swollen
It is provided with anchor pole cylinder fixing head, and anchor pole cylinder fixing head outer diameter is less than or equal to the swollen head big end outer diameter of anchor pole truncated cone-shaped,
The anchor pole truncated cone-shaped is swollen head and anchor pole cylinder fixing head inner hole are provided with internal screw thread, and anchor pole cylinder fixing head is separate
Anchor pole truncated cone-shaped is swollen, and first end end face is provided with "-" type groove.
The anchor cable tube expander includes the swollen head of anchor cable truncated cone-shaped and anchor cable cylinder fixing head, head big end that anchor cable truncated cone-shaped is swollen
It is provided with anchor cable cylinder fixing head, and anchor cable cylinder fixing head outer diameter is less than or equal to the swollen head big end outer diameter of anchor cable truncated cone-shaped,
The swollen centriciput of anchor cable truncated cone-shaped is provided with through-hole, and the anchor cable cylinder fixing head is single hole clip type or porous intermediate plate
Formula structure.
The anchor pole truncated cone-shaped is swollen head or the swollen head outer surface of anchor cable truncated cone-shaped are provided with guide groove or the swollen head of anchor pole truncated cone-shaped
Or the swollen head outer surface of anchor cable truncated cone-shaped is set as smooth surface.
The blender includes the first cylindrical body, the second cylindrical body and T-block, first cylindrical member at one end and the second circle
Cylinder one end is fixedly mounted, and the second cylindrical body other end and T-block big end are fixedly mounted, and the second cylindrical body outer diameter is greater than the first circle
Cylinder outer diameter.
Beneficial effects of the present invention,
1, the present invention generates constant-resistance by anchor pole tube expander or the expanding extruding of anchor cable tube expander and casing, friction, passes through
The Relative sliding of anchor pole tube expander or anchor cable tube expander provides deflection, not only provides high supporting centainly to by supporting country rock body
Constant-resistance makes to be in three dimension stress stress state always by supporting country rock body, and then forms the annular supporting pressure of higher caliper
Arch, and can also being slid by the axial of the expanding extrusion friction body of rod or cable body structure, and by supporting country rock body cooperative transformation,
A certain amount of strain energy of distortion and impact energy are absorbed, the effect of constant-resistance supporting and resigning energy-absorbing supporting, maximum journey are finally reached
It ensures on degree by the stability of supporting country rock body.
2, middle sleeve of the present invention is heavy wall diameter changeable pipe material, is conducive to casing generation and is radially expanded, and expander is two-part
Structure, even closer with the body of rod or cable body cooperation, so that structure constant-resistance is more stable, safety is higher, while setting on casing
It is equipped with limiter, its displacement is limited after anchor pole tube expander or anchor cable tube expander reach maximum displacement, makes expanding extrusion friction
The body of rod or cable body structure have the mechanical characteristic of the common body of rod or cable body again, continue to play the body of rod or cable body and casing itself
Mechanical property preferably ensures by the safety of supporting country rock body, anchor pole tube expander and the body of rod be threadedly engaged or anchor cable tube expander with
The cooperation of cable body clip type, it is safe and reliable, structure is simple, convenient for design processing and in-site installation.
3, apparatus of the present invention can provide biggish deflection and higher constant resistance, and apparatus of the present invention impact resistance
By force, stability is high.
Detailed description of the invention
Fig. 1 is the expanding extrusion friction anchor structure schematic diagram of apparatus of the present invention external；
Fig. 2 is the expanding extrusion friction anchor structure right view of apparatus of the present invention external；
Fig. 3 is cannula structure schematic diagram of the present invention；
Fig. 4-1 is anchor pole tube expander structural schematic diagram of the present invention；
Fig. 4-2 is anchor pole tube expander left view of the present invention；
Fig. 4-3 is anchor pole tube expander A-A cross-sectional view of the present invention；
Fig. 5 is the expanding extrusion friction anchor cable structure schematic diagram of apparatus of the present invention external；
Fig. 6-1 is anchor cable tube expander structural schematic diagram of the present invention；
Fig. 6-2 is anchor cable tube expander the structure left view of the present invention；
Fig. 6-3 is anchor cable tube expander B-B cross-sectional view of the present invention；
Fig. 7 is the built-in expanding extrusion friction anchor structure schematic diagram of apparatus of the present invention；
Fig. 8 is agitator structure schematic diagram of the present invention；
Fig. 9 is the built-in expanding extrusion friction anchor cable structure schematic diagram of apparatus of the present invention；
1- casing, 2- major diameter area, the expanding area 3-, 4- path area, 5- nut, 6- pallet, 7- limiter, 8- anchor pole tube expansion
Device, 9- anchor cable tube expander, the 10- body of rod, 11- cable body, 12- blender, 13- anchor pole truncated cone-shaped is swollen head, 14- anchor pole cylinder are fixed
Head, 15- "-" type groove, 16- intermediate plate, 17- guide groove, 18- anchor cable truncated cone-shaped is swollen head, 19- anchor cable cylinder fixing head, 20-
One cylindrical body, the second cylindrical body of 21-, 22-T type block, 23- anchorage.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
Embodiment 1
As shown in FIG. 1 to FIG. 3 and Fig. 4-1~Fig. 4-3, a kind of expanding extrusion friction anchor structure, the expanding extrusion friction
Anchor structure is external, including casing 1, and casing 1 includes major diameter area 2, expanding area 3 and path area 4,1 major diameter of described sleeve pipe
2 outer wall of area is bolted with nut 5, and nut 5 is set as high strength nut, and the nut 5 is provided with close to expanding 3 one end of area of casing 1
Pallet 6, pallet 6 are set as metal butterfly pallet, and 1 path area 4 of described sleeve pipe is provided with limiter 7 far from expanding 3 one end of area, and
Limiter 7 is an integral molding structure with path area 4 or limiter 7 is spirally connected with path area 4, the installation side of limiter 7 and path area 4
Formula can be selected according to specific construction demand, and 7 through-hole internal diameter of limiter is greater than 10 outer diameter of the body of rod, and limiter 7 can be
Anchor pole tube expander 8 limits its displacement after reaching maximum slippage, continues the mechanical property for playing the body of rod 10 and casing 1 itself, institute
It states expanding 3 inner wall of area of casing 1 and is provided with anchor pole tube expander 8, the anchor pole tube expander 8 includes the swollen head 13 of anchor pole truncated cone-shaped and anchor pole
Cylindrical fixing head 14, anchor pole cylinder fixing head 14 do not influence arrangement works resistance for anchor pole tube expander 8 to be fixedly mounted
Power, 13 big end of head that anchor pole truncated cone-shaped is swollen is provided with anchor pole cylinder fixing head 14, and 14 outer diameter of anchor pole cylinder fixing head is less than
Equal to the swollen 13 big end outer diameter of head of anchor pole truncated cone-shaped, the anchor pole truncated cone-shaped is swollen head 13 and 14 inner hole of anchor pole cylinder fixing head are all provided with
It is equipped with internal screw thread, and anchor pole cylinder fixing head 14 is provided with "-" type groove far from the swollen 13 one end end face of head of anchor pole truncated cone-shaped
15, swollen 13 outer surface of head of anchor pole truncated cone-shaped is provided with guide groove 17 or swollen 13 outer surface of head of anchor pole truncated cone-shaped is set as smooth table
Face, selection has the anchor pole tube expander 8 of guide groove 17 when in casing 1 with the presence of ponding the case where, selects in the case where not having ponding
Select the anchor pole tube expander 8 of smooth outer surface, 8 inner hole of the anchor pole tube expander body of rod 10 that is spirally connected passes through anchor when 10 tension of the body of rod
The expanding extruding of 13 pairs of casings 1 of head that the anchor pole truncated cone-shaped of bar tube expander 8 is swollen, friction generate constant-resistance, pass through anchor pole tube expander rotary table
Shape is swollen head 13 and 1 Relative sliding of casing provide displacement.
Embodiment 2
As shown in Fig. 5 and Fig. 6-1~Fig. 6-3, a kind of expanding extrusion friction anchor cable structure, the expanding extrusion friction anchor cable knot
Structure is external, including casing 1, and casing 1 includes major diameter area 2, expanding area 3 and path area 4,1 major diameter area of described sleeve pipe, 2 outer wall
It is bolted with nut 5, nut 5 is set as high strength nut, and the nut 5 is provided with pallet 6 close to expanding 3 one end of area of casing 1, support
Disk 6 is set as metal butterfly pallet, and 1 path area 4 of described sleeve pipe is provided with limiter 7, and limiter 7 far from expanding 3 one end of area
It is an integral molding structure with path area 4 or limiter 7 is spirally connected with path area 4, the mounting means in limiter 7 and path area 4 can be with
It is selected according to specific construction demand, and 7 through-hole internal diameter of limiter is greater than 10 outer diameter of the body of rod, limiter 7 can be swollen in anchor cable
Pipe device 9 limits its displacement after reaching maximum slippage, continues the mechanical property for playing the body of rod 10 and casing 1 itself, described sleeve pipe 1
Expanding 3 inner wall of area is provided with anchor cable tube expander 9, and anchor cable tube expander 9 includes that the swollen head 18 of anchor cable truncated cone-shaped and anchor cable cylinder are fixed
First 19, anchor cable cylinder fixing head 19 does not influence arrangement works resistance for anchor cable tube expander 9 to be fixedly mounted, anchor cable rotary table
18 big end of head that shape is swollen is provided with anchor cable cylinder fixing head 19, and 19 outer diameter of anchor cable cylinder fixing head is less than or equal to anchor cable rotary table
Shape is swollen 18 big end outer diameter of head is provided with through-hole in the middle part of the swollen head 18 of anchor cable truncated cone-shaped, and the anchor cable cylinder fixing head 19 is
16 formula structure of single hole intermediate plate 16 or porous intermediate plate, single hole intermediate plate 16 and porous intermediate plate 16 are selected according to specific construction demand
It selects, swollen 18 outer surface of head of anchor cable truncated cone-shaped is provided with guide groove 17 or swollen 18 outer surface of head of anchor cable truncated cone-shaped is set as smooth table
Face, selection has the anchor cable tube expander 9 of guide groove 17 when in casing 1 with the presence of ponding the case where, selects in the case where not having ponding
The anchor cable tube expander 9 of smooth outer surface is selected, 9 inner hole of anchor cable tube expander is provided with cable body 11, and anchor cable tube expander 9 passes through folder
Piece 16 and cable body 11 are fixedly mounted.
Embodiment 3
As shown in Figure 7 and Figure 8, a kind of expanding extrusion friction anchor structure, which is built-in
Formula, including casing 1, casing 1 include major diameter area 2, expanding area 3 and path area 4, and 1 path area 4 of described sleeve pipe is far from expanding area 3 one
End inner hole is provided with limiter 7, and limiter 7 is an integral molding structure with path area 4 or limiter 7 is spirally connected with path area 4, limit
Position device 7 and the mounting means in path area 4 can be selected according to specific construction demand, and 7 through-hole internal diameter of limiter is greater than
10 outer diameter of the body of rod, limiter 7 can limit its displacement after anchor pole tube expander 8 reaches maximum slippage, continue play the body of rod 10 with
The mechanical property of casing 1 itself, 1 major diameter area 2 of described sleeve pipe are provided with blender 12, blender 12 include the first cylindrical body 20,
Second cylindrical body 21 and T-block 22, T-block 22 is for stirring Anchor Agent, and the second cylindrical body 21 is for blender 12 to be screwed onto
On 1 inner wall of casing, the first cylindrical body 20 is contacted and is squeezed with the body of rod 10, can drive total when the body of rod 10 rotates
Anchor Agent is sufficiently stirred in rotation, and described first cylindrical body, 20 one end and 21 one end of the second cylindrical body are fixedly mounted, the second cylindrical body
21 other ends and 22 big end of T-block are fixedly mounted, and 21 outer diameter of the second cylindrical body is greater than 20 outer diameter of the first cylindrical body, and blender 12 can
It, can also be by the first cylinder 20, with the integrated formed structure being made of the first cylinder 20, the second cylinder 21 and T-block 22
The structure that two cylinders 21 and T-block 22 assemble, blender 12 can adequately stir Anchor Agent, and prevent foreign matter sleeve pipe
1, expanding 3 inner wall of area of described sleeve pipe 1 is provided with anchor pole tube expander 8, and the anchor pole tube expander 8 includes swollen 13 He of head of anchor pole truncated cone-shaped
Anchor pole cylinder fixing head 14, anchor pole cylinder fixing head 14 do not influence arrangement works for anchor pole tube expander 8 to be fixedly mounted
Resistance, 13 big end of head that anchor pole truncated cone-shaped is swollen is provided with anchor pole cylinder fixing head 14, and anchor pole cylinder 14 outer diameters of fixing head are small
In being equal to the swollen 13 big end outer diameter of head of anchor pole truncated cone-shaped, the anchor pole truncated cone-shaped is swollen head 13 and anchor pole cylinder 14 inner holes of fixing head are equal
It is provided with internal screw thread, and anchor pole cylinder fixing head 14 is provided with "-" type groove far from the swollen 13 one end end face of head of anchor pole truncated cone-shaped
15, swollen 13 outer surface of head of anchor pole truncated cone-shaped is provided with guide groove 17 or swollen 13 outer surface of head of anchor pole truncated cone-shaped is set as smooth table
Face, selection has the anchor pole tube expander 8 of guide groove 17 when in casing 1 with the presence of ponding the case where, selects in the case where not having ponding
Select the anchor pole tube expander 8 of smooth outer surface, 8 inner hole of anchor pole tube expander is provided with the body of rod 10, in 10 one end of the body of rod and blender 12
End fits closely, and 10 other end outer wall of the body of rod is provided with pallet 6 and nut 5, and nut 5 is set as high strength nut, and pallet 6 is arranged
For metal butterfly pallet, and pallet 6 is close to 1 one end of casing.
Embodiment 4
As shown in figure 9, a kind of expanding extrusion friction anchor cable structure, which is built-in, packet
Casing 1 is included, casing 1 includes major diameter area 2, expanding area 3 and path area 4, and 1 path area 4 of described sleeve pipe is far from expanding 3 one end inner hole of area
It is provided with limiter 7, and limiter 7 is an integral molding structure with path area 4 or limiter 7 is spirally connected with path area 4, limiter 7
It can be selected according to specific construction demand with the mounting means in path area 4, and 7 through-hole internal diameter of limiter is greater than cable body 11
Outer diameter, limiter 7 can limit its displacement after anchor cable tube expander 9 reaches maximum slippage, continue to play cable body 11 and casing 1 certainly
The mechanical property of body, 1 major diameter area 2 of described sleeve pipe are provided with blender 12, and blender 12 includes the first cylindrical body 20, the second cylinder
Body 21 and T-block 22, T-block 22 are used to blender 12 being screwed onto 1 inner wall of casing for stirring Anchor Agent, the second cylindrical body 21
On, the first cylindrical body 20 is contacted and is squeezed with cable body 11, total rotation can be driven when cable body 11 rotates, sufficiently
Anchor Agent is stirred, described first cylindrical body, 20 one end and 21 one end of the second cylindrical body are fixedly mounted, 21 other end of the second cylindrical body
It is fixedly mounted with 22 big end of T-block, 21 outer diameter of the second cylindrical body is greater than 20 outer diameter of the first cylindrical body, and blender 12 can be by the
The integrated formed structure that one cylinder 20, the second cylinder 21 and T-block 22 form, can also be by the first cylinder 20, the second cylinder 21
The structure assembled with T-block 22, blender 12 can adequately stir Anchor Agent, and prevent foreign matter sleeve pipe 1, the set
Expanding 3 inner wall of area of pipe 1 is provided with anchor cable tube expander 9, and anchor cable tube expander 9 includes that the swollen head 18 of anchor cable truncated cone-shaped and anchor cable cylinder are solid
Determine first 19, anchor cable cylinder fixing head 19 does not influence arrangement works resistance for anchor cable tube expander 9 to be fixedly mounted, anchor cable circle
18 big end of head that platform shape is swollen is provided with anchor cable cylinder fixing head 19, and 19 outer diameter of anchor cable cylinder fixing head is less than or equal to anchor cable circle
Platform shape is swollen 18 big end outer diameter of head is provided with through-hole, the anchor cable cylinder fixing head 19 in the middle part of the swollen head 18 of anchor cable truncated cone-shaped
For 16 formula structure of single hole intermediate plate 16 or porous intermediate plate, single hole intermediate plate 16 and porous intermediate plate 16 are selected according to specific construction demand
It selects, swollen 18 outer surface of head of anchor cable truncated cone-shaped is provided with guide groove 17 or swollen 18 outer surface of head of anchor cable truncated cone-shaped is set as smooth table
Face, selection has the anchor cable tube expander 9 of guide groove 17 when in casing 1 with the presence of ponding the case where, selects in the case where not having ponding
Select the anchor cable tube expander 9 of smooth outer surface, 9 inner hole of anchor cable tube expander is provided with cable body 11, in 11 one end of cable body and blender 12
End fits closely, and 11 other end of cable body is provided with anchorage 23 and pallet 6, and anchorage 23 is set as single hole strand tapered anchorage, according to reality
Border demand may be alternatively provided as porous strand tapered anchorage, and pallet 6 is set as metal butterfly pallet, and pallet 6 is close to 1 one end of casing.
The operation principle of the present invention is that when the axial tension that the body of rod 10 or cable body 11 are subject to is less than the constant-resistance of structure,
Anchor pole truncated cone-shaped is swollen head 13 or the swollen head 18 of anchor cable truncated cone-shaped and casing 1 remain static；It is subject to when the body of rod 10 or cable body 11
When axial tension is greater than the constant-resistance of structure, anchor pole truncated cone-shaped is swollen head 13 or the swollen head 18 of anchor cable truncated cone-shaped and casing 1 are generated relatively
Sliding provides displacement and absorbs a certain amount of strain energy of distortion and impact energy with by supporting country rock body cooperative transformation, to reach permanent
The effect of supporting and resigning energy-absorbing supporting is hindered, and when anchor pole tube expander 8 or anchor cable tube expander 9 and limiter 7 contact, limiter
7 will limit the displacement of anchor pole tube expander 8 or anchor cable tube expander 9, guarantee that the body of rod 10 or cable body 11 will not fall off from casing 1, from
And continue to play the mechanical property of the body of rod 10 or cable body 11 and casing 1 itself, it is ensured to the full extent by supporting country rock body
Stability.
Claims (7)
1. a kind of expanding extrusion friction anchor shaft anchor cable structure, it is divided into external and built-in, which is characterized in that external includes set
Pipe, casing includes major diameter area, expanding area and path area, and described sleeve pipe major diameter area outer wall is provided with nut and pallet, described sleeve pipe
Path area is provided with limiter far from expanding area one end, and the expanding area's inner wall of described sleeve pipe is provided with anchor pole tube expander or anchor cable tube expansion
Device, anchor pole tube expander inner hole are provided with the body of rod；The anchor cable tube expander inner hole is provided with cable body；
Built-in includes casing, and casing includes major diameter area, expanding area and path area, and described sleeve pipe path area is far from expanding area one end
Inner hole is provided with limiter, and described sleeve pipe major diameter area is provided with blender, and the expanding area's inner wall of described sleeve pipe is provided with anchor pole tube expansion
Device or anchor cable tube expander, anchor pole tube expander inner hole are provided with the body of rod, and body of rod one end is fitted closely with blender inner end, and the body of rod is another
End outer wall is provided with pallet and nut, and pallet is close to casing one end；The anchor cable tube expander inner hole is provided with cable body, cable body one
End is fitted closely with blender inner end, and the cable body other end is provided with pallet and anchorage, and pallet is close to casing one end.
2. a kind of expanding extrusion friction anchor shaft anchor cable structure according to claim 1, it is characterised in that: covered described in external
Pipe, casing major diameter area are provided with external screw thread, built-in described sleeve pipe, and casing major diameter area is provided with internal screw thread.
3. a kind of expanding extrusion friction anchor shaft anchor cable structure according to claim 1, it is characterised in that: the limiter and set
Pipe path area is an integral molding structure or limiter is spirally connected with casing path area, and limiter mesoporous internal diameter is greater than the body of rod or cable body
Outer diameter.
4. a kind of expanding extrusion friction anchor shaft anchor cable structure according to claim 1, it is characterised in that: the anchor pole tube expander
Including the swollen head of anchor pole truncated cone-shaped and anchor pole cylinder fixing head, head big end that anchor pole truncated cone-shaped is swollen is provided with anchor pole cylinder and fixes
Head, and anchor pole cylinder fixing head outer diameter is less than or equal to the swollen head big end outer diameter of anchor pole truncated cone-shaped, the anchor pole tube expander truncated cone-shaped
Swollen head and cylindrical fixing head inner hole are provided with internal screw thread, and cylindrical fixing head is far from the swollen first end end face setting of truncated cone-shaped
There is "-" type groove.
5. a kind of expanding extrusion friction anchor shaft anchor cable structure according to claim 1, it is characterised in that: the anchor cable tube expander
Including the swollen head of anchor cable truncated cone-shaped and anchor cable cylinder fixing head, head big end that anchor cable truncated cone-shaped is swollen is provided with anchor cable cylinder and fixes
Head, and anchor cable cylinder fixing head outer diameter is less than or equal to the swollen head big end outer diameter of anchor cable truncated cone-shaped, in the swollen head of anchor cable truncated cone-shaped
Portion is provided with through-hole, and the anchor cable cylinder fixing head is single hole intermediate plate or honeycomb sandwich slice structure.
6. a kind of expanding extrusion friction anchor shaft anchor cable structure according to claim 1, it is characterised in that: the anchor pole truncated cone-shaped
Swollen head or the swollen head outer surface of anchor cable truncated cone-shaped are provided with guide groove or the swollen head of anchor pole truncated cone-shaped or the swollen head outer surface of anchor cable truncated cone-shaped
It is set as smooth surface.
7. a kind of expanding extrusion friction anchor shaft anchor cable structure according to claim 1, it is characterised in that: the blender includes
First cylindrical body, the second cylindrical body and T-block, first cylindrical member at one end and the second cylindrical member at one end are fixedly mounted, and second
The cylindrical body other end and T-block big end are fixedly mounted, and the second cylindrical body outer diameter is greater than the first cylindrical body outer diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (11)
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| CN110067582A (en) * | 2019-05-05 | 2019-07-30 | 中国矿业大学 | For surrounding rock supporting, the anchor pole and its installation method of instability monitoring |
| CN110145350A (en) * | 2019-06-05 | 2019-08-20 | 北京矿冶科技集团有限公司 | A kind of pulling force dispersing type twin-stage constant-resistance stress release anchor pole |
| CN110307022A (en) * | 2019-07-16 | 2019-10-08 | 北京诚田恒业煤矿设备有限公司 | A kind of reflexed line deformation constant-resistance energy absorption device |
| CN111648805A (en) * | 2020-06-11 | 2020-09-11 | 新汶矿业集团有限责任公司华丰煤矿 | Resistance-increasing deformation anchor cable for deep yielding support and assembling and working method |
| CN111648804A (en) * | 2020-06-11 | 2020-09-11 | 新汶矿业集团有限责任公司华丰煤矿 | Resistance-increasing deformation anchor cable for deep yielding support and assembling and working method |
| CN111720148A (en) * | 2020-06-22 | 2020-09-29 | 辽宁大学 | Section coal pillar self-anchoring opposite-pulling anti-scour anchor cable and using method thereof |
| CN112282810A (en) * | 2020-11-04 | 2021-01-29 | 重庆大学 | Large-deformation self-adaptive energy release anchor rod |
| CN112412510A (en) * | 2020-11-23 | 2021-02-26 | 中国矿业大学 | Large-deformation lift-drag anti-shear anchor cable and construction method and working method thereof |
| CN112796809A (en) * | 2020-12-31 | 2021-05-14 | 河海大学 | Monitoring device and monitoring method for constant-resistance large-deformation anchor cable |
| CN113027500A (en) * | 2021-03-31 | 2021-06-25 | 泰安泰烁岩层控制科技有限公司 | Novel outward-expansion friction type constant-resistance energy-absorbing anchor cable and use method thereof |
| CN114934800A (en) * | 2022-07-26 | 2022-08-23 | 华北科技学院(中国煤矿安全技术培训中心) | Spring lock type constant-resistance energy-absorbing anchor cable and use method thereof |
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| CN110067582A (en) * | 2019-05-05 | 2019-07-30 | 中国矿业大学 | For surrounding rock supporting, the anchor pole and its installation method of instability monitoring |
| CN110145350A (en) * | 2019-06-05 | 2019-08-20 | 北京矿冶科技集团有限公司 | A kind of pulling force dispersing type twin-stage constant-resistance stress release anchor pole |
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| CN111648805A (en) * | 2020-06-11 | 2020-09-11 | 新汶矿业集团有限责任公司华丰煤矿 | Resistance-increasing deformation anchor cable for deep yielding support and assembling and working method |
| CN111648804A (en) * | 2020-06-11 | 2020-09-11 | 新汶矿业集团有限责任公司华丰煤矿 | Resistance-increasing deformation anchor cable for deep yielding support and assembling and working method |
| CN111648804B (en) * | 2020-06-11 | 2022-03-11 | 新汶矿业集团有限责任公司华丰煤矿 | Resistance-increasing deformation anchor cable for deep yielding support and assembling and working method |
| CN111720148B (en) * | 2020-06-22 | 2022-03-04 | 辽宁大学 | Section coal pillar self-anchoring opposite-pulling anti-scour anchor cable and using method thereof |
| US11187081B1 (en) | 2020-06-22 | 2021-11-30 | Liaoning University | Self-anchored opposite-pulling anti-impact anchor cable for sectional coal pillars and using method thereof |
| CN111720148A (en) * | 2020-06-22 | 2020-09-29 | 辽宁大学 | Section coal pillar self-anchoring opposite-pulling anti-scour anchor cable and using method thereof |
| CN112282810A (en) * | 2020-11-04 | 2021-01-29 | 重庆大学 | Large-deformation self-adaptive energy release anchor rod |
| CN112412510A (en) * | 2020-11-23 | 2021-02-26 | 中国矿业大学 | Large-deformation lift-drag anti-shear anchor cable and construction method and working method thereof |
| CN112796809A (en) * | 2020-12-31 | 2021-05-14 | 河海大学 | Monitoring device and monitoring method for constant-resistance large-deformation anchor cable |
| CN113027500A (en) * | 2021-03-31 | 2021-06-25 | 泰安泰烁岩层控制科技有限公司 | Novel outward-expansion friction type constant-resistance energy-absorbing anchor cable and use method thereof |
| CN114934800A (en) * | 2022-07-26 | 2022-08-23 | 华北科技学院(中国煤矿安全技术培训中心) | Spring lock type constant-resistance energy-absorbing anchor cable and use method thereof |
| CN114934800B (en) * | 2022-07-26 | 2022-10-04 | 华北科技学院(中国煤矿安全技术培训中心) | Spring lock type constant-resistance energy-absorbing anchor cable and use method thereof |
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