CN105951825B - It is a kind of hollow from base expanding and base expanding crab-bolt and its installation method - Google Patents
It is a kind of hollow from base expanding and base expanding crab-bolt and its installation method Download PDFInfo
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- CN105951825B CN105951825B CN201610478775.9A CN201610478775A CN105951825B CN 105951825 B CN105951825 B CN 105951825B CN 201610478775 A CN201610478775 A CN 201610478775A CN 105951825 B CN105951825 B CN 105951825B
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- endoporus
- base expanding
- voussoir
- rod
- lining pipe
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- 238000009434 installation Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 100
- 238000005520 cutting process Methods 0.000 claims abstract description 42
- 230000000694 effects Effects 0.000 claims abstract description 18
- 238000013461 design Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 33
- 238000003780 insertion Methods 0.000 claims description 15
- 230000037431 insertion Effects 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000001070 adhesive effect Effects 0.000 claims description 14
- 238000000605 extraction Methods 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 13
- 239000011435 rock Substances 0.000 claims description 11
- 238000007569 slipcasting Methods 0.000 claims description 10
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 2
- 239000002002 slurry Substances 0.000 abstract description 3
- 239000011440 grout Substances 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 12
- 238000004873 anchoring Methods 0.000 description 10
- 239000000126 substance Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 241001149930 Protura <class> Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- E02D5/80—Ground anchors
- E02D5/808—Ground anchors anchored by using exclusively a bonding material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/021—Grouting with inorganic components, e.g. cement
-
- 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
- E21D21/0033—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts having a jacket or outer tube
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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)
- Civil Engineering (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Piles And Underground Anchors (AREA)
Abstract
It is a kind of hollow from base expanding and base expanding crab-bolt, including the body of rod, voussoir, internal lining pipe, the center of the body of rod offers body of rod endoporus, the body of rod includes bottom, intermediate bar, exposed junction, and bottom includes cutter head and joint-cutting, and the center of voussoir offers voussoir endoporus, voussoir includes wedge head and base, the outer peripheral face of one end of internal lining pipe is connected with the inner peripheral surface of body of rod endoporus, and the outer peripheral face of the other end of internal lining pipe is connected with the inner peripheral surface of voussoir endoporus, and the inside of internal lining pipe communicates with body of rod endoporus, voussoir endoporus；During installation, above-mentioned crab-bolt is inserted into straight hole bottom, hammering or impact mounting cap, so that voussoir promotes cutter head to be expanded to hole wall, cutter head is embedded in straight hole wall and digs out broken night, while hammering or impact mounting cap, using mounting cap input compressed air so that broken night to be blown out, cutter head base expanding and base expanding in place after, to bar internal injection to slurries overflow, treat grout curing, crab-bolt installs.Not only base expanding and base expanding effect is good by the design, and grouting quality is good, durability is high, reliability is high.
Description
Technical field
The invention belongs to the technical field such as Structural Engineering anchoring, structures connection dowel and equipment mounting foot crab-bolt,
More particularly to it is a kind of hollow from base expanding and base expanding crab-bolt and its installation method, it is primarily adapted for use in and improves base expanding and base expanding effect.
Background technology
Crab-bolt generally has two kinds of anchorage styles：One kind is mechanical anchoring, and another kind anchors for cementing formula.Mechanical anchoring
Anchor force is provided mainly by frictional resistance caused by the extruding dilated between head and anchor hole wall.Depth is engaged because of anchor head and hole wall
Spend limited, the withdrawal resistance that can be provided is little, and the deformation of hole wall and dilates the relaxation of head and easily make fastening invalidation, and reliability is low.Glue
Eliminant anchoring provides anchor force, such as embedding re-bar technique later by the cementitious matter consolidation irrigated.Anchoring adhesive can provide because intensity is high
Anchor force is big, and reliability is high.But there is not heatproof, not moisture-proof and the problem of aging in anchoring adhesive, it is impossible to meet some Special Rings
The engineering demand in border.
For crab-bolt insufficient, GB50367-2013 present in anchor mechanism and anchoring material《Concrete structure reinforcement
Design specification》Recommend using the rear base expanding and base expanding crab-bolt for having locking key effect.This kind of crab-bolt is different by its make, be divided into from base expanding and base expanding,
Mould base expanding and base expanding and gluing-three kinds of mould base expanding and base expanding.Tooling blade drill bit base expanding and base expanding first is used in the straight hole bottom of concrete structure, then root is installed
Portion's band dilates the referred to as mould base expanding and base expanding crab-bolt of a crab-bolt.If after tooling blade drill bit base expanding and base expanding, also toward perfusion anchoring adhesive in anchor hole, then
Installation root band dilates then referred to as gluing-mould base expanding and base expanding crab-bolt of a crab-bolt.And from base expanding and base expanding crab-bolt be directly by with base expanding and base expanding cutter head
In anchor pole insertion straight hole, by realizing base expanding and base expanding to the impact of anchor pole exposed junction or rotary presser.
Chinese patent application publication No. is CN101691843A, and data of publication of application is the disclosure of the invention on April 7th, 2010
It is a kind of can Fast Installation rear chambering self-locking anchor, including anchor end, intermediate bar, body of rod exposed junction and voussoir in the body of rod, in the body of rod
The wedge groove in insertion section is provided with the end face at anchor end, one end of voussoir is provided with wedge head, and the other end is provided with base, wedge head and bottom
It is interlude between seat, the diameter or area of section of interlude are less than the diameter or area of section at the big end of wedge head.Although the invention
Energy Fast Installation, but it still has following defect：The installation of the rear chambering self-locking anchor and base expanding and base expanding are once completed, in the body of rod
The broken night of hole wall that interior anchor end is dug out during the base expanding and base expanding of anchor end can not be discharged outside anchor hole, be stored in the broken night in anchor hole and hindered anchor end in the body of rod
Base expanding and base expanding, base expanding and base expanding effect are poor.
The content of the invention
The purpose of the present invention is the defects of overcoming base expanding and base expanding effect difference present in prior art and problem, there is provided a kind of base expanding and base expanding
Good hollow from base expanding and base expanding crab-bolt and its installation method of effect.
To realize object above, technical solution of the invention is：It is a kind of hollow from base expanding and base expanding crab-bolt, including the body of rod, wedge
Block, the body of rod include being sequentially connected the bottom connect, intermediate bar, exposed junction, and the voussoir includes wedge head and the base being connected；
It is described hollow also to include internal lining pipe from base expanding and base expanding crab-bolt；The center of the body of rod offers body of rod endoporus, the body of rod
One end of endoporus is extended on the end face of exposed junction, and the other end of body of rod endoporus is extended on the end face of bottom, the bottom bag
Cutter head and joint-cutting, the quantity at least two of the cutter head are included, cutter head includes upper end, lower end, outer peripheral face, the quantity of the joint-cutting
Equal with the quantity of cutter head, for joint-cutting between two neighboring cutter head, joint-cutting includes first end, the second end, the 3rd end, the 4th
End, the first end are extended on the end face of upper end, and the second end is extended on the end face of lower end, and the 3rd end is vertical with body of rod endoporus
Communicate, the 4th end is extended on outer peripheral face, and one end of the intermediate bar is connected with upper end, the other end and exposed junction of intermediate bar
One end be connected, be provided with screw thread on the outer peripheral face of the other end of exposed junction；
The wedge head includes wedge top, circular conical surface or incline or wedge surface, and the wedge top is in contact with lower end, the circular conical surface or
Incline or wedge surface are located at the position of face joint-cutting, and the center of the voussoir offers voussoir endoporus, one end of the voussoir endoporus
Extend on the end face on wedge top, the other end of voussoir endoporus is extended on the end face of base；
The outer peripheral face of one end of the internal lining pipe is connected with the inner peripheral surface of body of rod endoporus, the periphery of the other end of internal lining pipe
Face is connected with the inner peripheral surface of voussoir endoporus, and the inside of internal lining pipe communicates with body of rod endoporus, voussoir endoporus.
The overall diameter of the internal lining pipe is less than or equal to the interior diameter of body of rod endoporus, and the overall diameter of internal lining pipe is more than voussoir endoporus
Interior diameter, the length of internal lining pipe is more than the distance between first end and the second end.
The quantity of the joint-cutting is 2~8, and the distance between the first end and the second end are more than or equal to the height of wedge head
Degree.
The wedge head is positive round cone structure, orthopyramid body structure or wedge design, and the pointed cone angle of wedge head is less than the body of rod
Twice of angle of friction between the material of voussoir two.
Radial direction of the base along section offers multiple grooves, and the groove is vertical with voussoir endoporus to be communicated.
A kind of hollow installation method from base expanding and base expanding crab-bolt, the installation method comprise the following steps successively：
A, assemble：First one end of internal lining pipe is inserted in the voussoir endoporus on wedge top, so that the outer peripheral face of one end of internal lining pipe
It is connected with the inner peripheral surface of voussoir endoporus, then the other end of internal lining pipe is inserted in the body of rod endoporus of bottom, when circular conical surface or side
Rib or wedge surface are located at the position of face joint-cutting, wedge top is in contact with lower end, and in the outer peripheral face and the body of rod of the other end of internal lining pipe
Stop insertion when the inner peripheral surface in hole is connected, now, the body of rod, internal lining pipe, voussoir are assembled into one structure, so as to complete it is hollow from
The assembling of base expanding and base expanding crab-bolt；
B, install：The first drill straight hole on rock or concrete, so that the interior diameter of straight hole is more than overall diameter, the voussoir of the body of rod
Overall diameter, then hollow from base expanding and base expanding crab-bolt insertion straight hole by what is assembled, during insertion, voussoir is located at the lower section of the body of rod, works as bottom
When seat is in contact with the bottom hole of straight hole, stops inserting and mounting cap is connected on exposed junction, then hammer or impact mounting cap, with
The body of rod is set to be moved down along straight hole, cutter head expands outwardly under the constraint of wedge head, and cutter head digs out the rock or mixed of the hole wall of straight hole
Solidifying soil is to form hole base expanding and base expanding and produce broken night, and while hammering or impact mounting cap, compressed air is successively through in mounting cap, the body of rod
After being delivered to bottom hole after hole, internal lining pipe, voussoir endoporus, compressed air again along the hollow gap between base expanding and base expanding crab-bolt and straight hole to
Outer turn back blows out broken night, when cutter head and hole base expanding and base expanding formation locking key effect, stops hammering or impact mounting cap, stops delivery pressure
Contracting air, then remove mounting cap, injecting paste material is then passed sequentially through into hand-hole bottom after body of rod endoporus, internal lining pipe, voussoir endoporus,
Stop slip casting after injecting paste material overflows along the hollow gap between base expanding and base expanding crab-bolt and straight hole, treat that injecting paste material solidifies, now,
It is hollow to be installed from base expanding and base expanding crab-bolt.
In step a：
The outer peripheral face of one end of the internal lining pipe is connected with the inner peripheral surface of voussoir endoporus and referred to：Outside one end of internal lining pipe
The inner peripheral surface of side face and voussoir endoporus is in clamping connection；Or by the surface tapping of one end of internal lining pipe, wedge top voussoir endoporus in
Mantle fiber, so that the outer peripheral face of one end of internal lining pipe is threadedly coupled with the inner peripheral surface of voussoir endoporus；
The outer peripheral face of the other end of the internal lining pipe is connected with the inner peripheral surface of body of rod endoporus and referred to：The other end of internal lining pipe
The inner peripheral surface of outer peripheral face and body of rod endoporus be in clamping connection；Or it will be inserted after the other end surface smear adhesives of internal lining pipe
In the body of rod endoporus of bottom, after adhesives solidification, the outer peripheral face of the other end of internal lining pipe and the inner peripheral surface phase of body of rod endoporus
Connection.
In step b, when the mounting cap is No.1 mounting cap：
The No.1 mounting cap includes No.1 mounting cap body and its internal the first endoporus set, the second endoporus, the 3rd
Endoporus, one end of first endoporus are extended on the end face at the No.1 end of No.1 mounting cap body, the other end of the first endoporus
Communicated with one end of the second endoporus, the other end of the second endoporus is vertical with one end of the 3rd endoporus to be communicated, the 3rd endoporus it is another
End is extended on the side of No.1 mounting cap body；
The mounting cap that connected on exposed junction refers to：The first mantle fiber in the first endoporus, then by exposed junction and the first endoporus
Threaded connection, so as to connect No.1 mounting cap on exposed junction；
Hammering or the impact mounting cap refers to：No. two ends of No.1 mounting cap are hammered using fullering tool；
The compressed air is delivered to bottom hole after mounting cap, body of rod endoporus, internal lining pipe, voussoir endoporus successively and referred to：It is logical
The 3rd endoporus external compressed air is crossed, makes compressed air successively through the 3rd endoporus, the second endoporus, the first endoporus, body of rod endoporus, interior
Bottom hole is delivered to after bushing pipe, voussoir endoporus.
In step b, when the mounting cap is No. two mounting caps：
No. two mounting caps include No. two mounting cap bodies and its internal No.1 endoporus set, No. two endoporus, No. three
Endoporus, one end of the No.1 endoporus are extended on the end face at No. three ends of No. two mounting cap bodies, the other end of No.1 endoporus
Communicated with one end of No. two endoporus, the other end of No. two endoporus communicates with one end of No. three endoporus, and the other end of No. three endoporus prolongs
Extend on the end face at No. four ends of No. two mounting cap bodies；
The mounting cap that connected on exposed junction refers to：The first mantle fiber in No.1 endoporus, then by exposed junction and No.1 endoporus
Threaded connection, so as to connect No. two mounting caps on exposed junction；
Hammering or the impact mounting cap refers to：Pneumatics is first impacted into the steam vent of residue extraction mechanism and No. three endoporus gas circuits connect
Connect, recycle pneumatics impact residue extraction mechanism to impact No. two mounting caps；
The compressed air is delivered to bottom hole after mounting cap, body of rod endoporus, internal lining pipe, voussoir endoporus successively and referred to：It is empty
The compressed air that pressure impact residue extraction mechanism is discharged through steam vent is successively through in No. three endoporus, No. two endoporus, No.1 endoporus, the body of rod
Bottom hole is delivered to after hole, internal lining pipe, voussoir endoporus.
Compared with prior art, beneficial effects of the present invention are：
1st, because a kind of center of the hollow body of rod from base expanding and base expanding crab-bolt and its installation method of the present invention offers body of rod endoporus,
The center of voussoir offers voussoir endoporus, and the outer peripheral face of one end of internal lining pipe is connected with the inner peripheral surface of body of rod endoporus, internal lining pipe
The outer peripheral face of the other end be connected with the inner peripheral surface of voussoir endoporus, the inside of internal lining pipe and body of rod endoporus, voussoir endoporus are homogeneous
Logical, such design will be designed to hollow form from base expanding and base expanding crab-bolt, and compressed air is inputted to bottom hole by hollow channel, will be certainly
The broken night dug out during base expanding and base expanding crab-bolt cutter head base expanding and base expanding is outside the gap discharge anchor hole between straight hole wall and the crab-bolt body of rod, beneficial to knife
Head continues base expanding and base expanding, improves base expanding and base expanding effect from base expanding and base expanding crab-bolt.Therefore, base expanding and base expanding effect of the present invention is good.
2nd, due to a kind of pointed cone angle of the hollow wedge head from base expanding and base expanding crab-bolt and its installation method of the present invention be less than the body of rod with
Twice of angle of friction between the material of voussoir two, when crab-bolt is by pulling capacity, the cutter head of crab-bolt will be extruded by base expanding and base expanding hole wall
Effect, because of the reason of friction self-locking power, the voussoir of bottom will not slip between the cutter head of clamping, and crab-bolt expansion head keeps self-locking
State, reliable locking key effect anchor force is provided for crab-bolt.Therefore, reliability of the present invention is high.
3rd, there is hollow channel from base expanding and base expanding crab-bolt from base expanding and base expanding crab-bolt and its installation method because one kind of the invention is hollow, can
To complete crab-bolt from after base expanding and base expanding work using hollow channel progress slip casting, injecting paste material is noted to bottom hole, then is passed through by bottom hole
Gap between straight hole wall and the crab-bolt body of rod turns back to form loop, and gap is easily poured closely knit, it is ensured that slurry filling quality, is anchor
Bolt provides bonding anchor force, while plays protective action to the crab-bolt body of rod, so as to improve the endurance quality of crab-bolt and unfailing performance.
Therefore, not only grouting quality is good by the present invention, and durability is high, reliability is high.
4th, because a kind of hollow slip casting from base expanding and base expanding crab-bolt and its installation method of the invention is to be completed in crab-bolt from after base expanding and base expanding,
Slip casting does not influence to work from base expanding and base expanding, has hollow from base expanding and base expanding crab-bolt, expands after three kinds that national regulation GB50367-2013 recommends
A kind of form has been increased newly on the basis of the crab-bolt of bottom again --- gluing-from base expanding and base expanding crab-bolt, it is hollow from base expanding and base expanding crab-bolt install convenient, reliability
Height, expansion anchor and chemically-planted steel bar can be replaced.Therefore, install convenient of the present invention, reliability are high, can replace expansion anchor and
Chemically-planted steel bar.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the body of rod in Fig. 1.
Fig. 3 is the front view of bottom in Fig. 2.
Fig. 4 is Fig. 3 upward view.
Fig. 5 is the structural representation of positive round cone voussoir in the present invention.
Fig. 6 is the structural representation of orthopyramid body voussoir in the present invention.
Fig. 7 is the front view of wedge voussoir in the present invention.
Fig. 8 is Fig. 7 left view.
Fig. 9 is the structural representation of internal lining pipe in Fig. 1.
Figure 10 is the structural representation of No.1 mounting cap in the present invention.
Figure 11 is the structural representation of No. two mounting caps in the present invention.
Figure 12 is the view after present invention assembling.
Figure 13 is the view being put into after the present invention assembles in straight hole.
Figure 14 is the view after present invention installation.
In figure：It is hollow from base expanding and base expanding crab-bolt 1, it is the body of rod 2, bottom 21, cutter head 211, joint-cutting 212, upper end 213, lower end 214, outer
Side face 215, first end 216, the second end 217, the 3rd end 218, the 4th end 219, intermediate bar 22, exposed junction 23, body of rod endoporus 24,
Screw thread 25, voussoir 3, wedge head 31, base 32, voussoir endoporus 33, groove 34, wedge top 35, pointed cone angle 36, circular conical surface 37, incline
38th, wedge surface 39, internal lining pipe 4, No.1 mounting cap 5, No.1 mounting cap body 51, the first endoporus 52, the second endoporus 53, the 3rd endoporus
54th, 62, No. two end 56,6, No. two mounting cap bodies 61 of mounting cap of side 57, two, No.1 endoporus endoporus of No.1 end 55, two
63rd, No. three ends 65, four of endoporus 64, three end 66, rock or concrete seven, straight hole 71, bottom hole 72, hole base expanding and base expanding 73, injecting paste material
74th, mounting cap 8.
Embodiment
Below in conjunction with brief description of the drawings, the present invention is further detailed explanation with embodiment.
Referring to Fig. 1 to Figure 14, one kind is hollow to include phase successively from base expanding and base expanding crab-bolt, including the body of rod 2, voussoir 3, the body of rod 2
The bottom 21 of connection, intermediate bar 22, exposed junction 23, the voussoir 3 include the wedge head 31 being connected and base 32；
It is described hollow also to include internal lining pipe 4 from base expanding and base expanding crab-bolt；The center of the body of rod 2 offers body of rod endoporus 24, described
One end of body of rod endoporus 24 is extended on the end face of exposed junction 23, and the other end of body of rod endoporus 24 extends to the end face of bottom 21
On, the bottom 21 includes cutter head 211 and joint-cutting 212, the quantity at least two of the cutter head 211, and cutter head 211 includes upper end
213rd, lower end 214, outer peripheral face 215, the quantity of the joint-cutting 212 is equal with the quantity of cutter head 211, and joint-cutting 212 is located at adjacent two
Between individual cutter head 211, joint-cutting 212 includes first end 216, the second end 217, the 3rd end 218, the 4th end 219, the first end
216 are extended on the end face of upper end 213, and the second end 217 is extended on the end face of lower end 214, the 3rd end 218 and body of rod endoporus 24
Vertically communicate, the 4th end 219 is extended on outer peripheral face 215, and one end of the intermediate bar 22 is connected with upper end 213, intermediate bar
22 other end is connected with one end of exposed junction 23, and screw thread 25 is provided with the outer peripheral face of the other end of exposed junction 23；
The wedge head 31 includes wedge top 35, circular conical surface 37 or incline 38 or wedge surface 39, and the wedge top 35 connects with lower end 214
Touch, the circular conical surface 37 or incline 38 or wedge surface 39 are located at the position of face joint-cutting 212, and the center of the voussoir 3 offers wedge
Block endoporus 33, one end of the voussoir endoporus 33 are extended on the end face on wedge top 35, and the other end of voussoir endoporus 33 extends to bottom
On the end face of seat 32；
The outer peripheral face of one end of the internal lining pipe 4 is connected with the inner peripheral surface of body of rod endoporus 24, the other end of internal lining pipe 4
Outer peripheral face is connected with the inner peripheral surface of voussoir endoporus 33, and the inside of internal lining pipe 4 communicates with body of rod endoporus 24, voussoir endoporus 33.
The overall diameter of the internal lining pipe 4 is less than or equal to the interior diameter of body of rod endoporus 24, and the overall diameter of internal lining pipe 4 is more than voussoir
The interior diameter of endoporus 33, the length of internal lining pipe 4 are more than the distance between end 217 of first end 216 and second.
The quantity of the joint-cutting 212 is 2~8, and the distance between described end 217 of first end 216 and second is more than etc.
In the height of wedge head 31.
The wedge head 31 is positive round cone structure, orthopyramid body structure or wedge design, and the pointed cone angle 36 of wedge head 31 is small
Twice of angle of friction between 3 liang of materials of the body of rod 2 and voussoir.
Radial direction of the base 32 along section offers multiple grooves 34, the groove 34 and 33 vertical phase of voussoir endoporus
It is logical.
A kind of hollow installation method from base expanding and base expanding crab-bolt, the installation method comprise the following steps successively：
A, assemble：First one end of internal lining pipe 4 is inserted in the voussoir endoporus 33 on wedge top 35, so that one end of internal lining pipe 4
Outer peripheral face is connected with the inner peripheral surface of voussoir endoporus 33, then the other end of internal lining pipe 4 is inserted in the body of rod endoporus 24 of bottom 21,
When circular conical surface 37 or incline 38 or wedge surface 39 are located at the position of face joint-cutting 212, wedge top 35 is in contact with lower end 214, and liner
Stop insertion, now, the body of rod 2, internal lining pipe 4, wedge when the outer peripheral face of the other end of pipe 4 is connected with the inner peripheral surface of body of rod endoporus 24
Block 3 is assembled into one structure, so as to complete the hollow assembling from base expanding and base expanding crab-bolt 1；
B, install：The first drill straight hole 71 on rock or concrete seven, so that the interior diameter of straight hole 71 is more than the outer straight of the body of rod 2
Footpath, the overall diameter of voussoir 3, then by assemble it is hollow inserted from base expanding and base expanding crab-bolt 1 in straight hole 71, during insertion, voussoir 3 is located at the body of rod
2 lower section, when base 32 is in contact with the bottom hole 72 of straight hole 71, stops insertion and mounting cap 8 is connected on exposed junction 23, so
Hammer afterwards or impact mounting cap 8, so that the body of rod 2 moves down along straight hole 71, cutter head 211 is under the constraint of wedge head 31 to extending out
, cutter head 211 digs out rock or the concrete seven of the hole wall of straight hole 71 to form hole base expanding and base expanding 73 and produce broken night, hammering or impact
While mounting cap 8, compressed air is delivered to bottom hole after mounting cap 8, body of rod endoporus 24, internal lining pipe 4, voussoir endoporus 33 successively
After 72, compressed air is outwards turned back along the hollow gap between base expanding and base expanding crab-bolt 1 and straight hole 71 blow out broken night again, works as cutter head
211 with hole base expanding and base expanding 73 when forming locking key effect, stops hammering or impact mounting cap 8, stops conveying compressed air, then removes installation
Cap 8, injecting paste material 74 is then passed sequentially through into hand-hole bottom 72 after body of rod endoporus 24, internal lining pipe 4, voussoir endoporus 33, works as slip casting
Material 74 stops slip casting after being overflowed along the hollow gap between base expanding and base expanding crab-bolt 1 and straight hole 71, treats that injecting paste material 74 solidifies, this
When, it is hollow to be installed from base expanding and base expanding crab-bolt 1.
In step a：
The outer peripheral face of one end of the internal lining pipe 4 is connected with the inner peripheral surface of voussoir endoporus 33 to be referred to：One end of internal lining pipe 4
The inner peripheral surface of outer peripheral face and voussoir endoporus 33 be in clamping connection；Or by the surface tapping of one end of internal lining pipe 4, the wedge on wedge top 35
Mantle fiber in block endoporus 33, so that the outer peripheral face of one end of internal lining pipe 4 is threadedly coupled with the inner peripheral surface of voussoir endoporus 33；
The outer peripheral face of the other end of the internal lining pipe 4 is connected with the inner peripheral surface of body of rod endoporus 24 to be referred to：Internal lining pipe 4 it is another
The inner peripheral surface of the outer peripheral face of one end and body of rod endoporus 24 is in clamping connection；Or the other end surface smear of internal lining pipe 4 is bonded material
Inserted after material in the body of rod endoporus 24 of bottom 21, after adhesives solidification, in the outer peripheral face and the body of rod of the other end of internal lining pipe 4
The inner peripheral surface in hole 24 is connected.
In step b, when the mounting cap 8 is No.1 mounting cap 5：
The No.1 mounting cap 5 includes No.1 mounting cap body 51 and its internal the first endoporus 52 set, the second endoporus
53rd, the 3rd endoporus 54, one end of first endoporus 52 are extended on the end face at the No.1 end 55 of No.1 mounting cap body 51, the
The other end of one endoporus 52 is communicated with one end of the second endoporus 53, and one end of the other end and the 3rd endoporus 54 of the second endoporus 53 is hung down
Directly communicate, the other end of the 3rd endoporus 54 is extended on the side 57 of No.1 mounting cap body 51；
The mounting cap 8 that connected on exposed junction 23 refers to：The first mantle fiber in the first endoporus 52, then by exposed junction 23 and the
One endoporus 52 is threadedly coupled, so as to connect No.1 mounting cap 5 on exposed junction 23；
Hammering or the impact mounting cap 8 refers to：No. two ends 56 of No.1 mounting cap 5 are hammered into shape using fullering tool
Hit；
The compressed air is delivered to bottom hole 72 after mounting cap 8, body of rod endoporus 24, internal lining pipe 4, voussoir endoporus 33 successively
Refer to：By the external compressed air of the 3rd endoporus 54, make compressed air successively through in the 3rd endoporus 54, the second endoporus 53, first
Bottom hole 72 is delivered to after hole 52, body of rod endoporus 24, internal lining pipe 4, voussoir endoporus 33.
In step b, when the mounting cap 8 is No. two mounting caps 6：
No. two mounting caps 6 include No. two mounting cap bodies 61 and its internal 62, No. two endoporus of No.1 endoporus set
63rd, No. three endoporus 64, one end of the No.1 endoporus 62 are extended on the end face at No. three ends 65 of No. two mounting cap bodies 61, and one
The other end of number endoporus 62 communicates with one end of No. two endoporus 63, one end phase of the other end of No. two endoporus 63 and No. three endoporus 64
Logical, the other end of No. three endoporus 64 is extended on the end face at No. four ends 66 of No. two mounting cap bodies 61；
The mounting cap 8 that connected on exposed junction 23 refers to：The first mantle fiber in No.1 endoporus 62, then by exposed junction 23 and one
Number endoporus 62 is threadedly coupled, so as to connect No. two mounting caps 6 on exposed junction 23；
Hammering or the impact mounting cap 8 refers to：Pneumatics is first impacted to the steam vent and No. three gas of endoporus 64 of residue extraction mechanism
Road connects, and recycles pneumatics impact residue extraction mechanism to impact No. two mounting caps 6；
The compressed air is delivered to bottom hole 72 after mounting cap 8, body of rod endoporus 24, internal lining pipe 4, voussoir endoporus 33 successively
Refer to：The compressed air that pneumatics impact residue extraction mechanism is discharged through steam vent is successively through in 64, No. two endoporus 63 of No. three endoporus, No.1
Bottom hole 72 is delivered to after hole 62, body of rod endoporus 24, internal lining pipe 4, voussoir endoporus 33.
The principle of the present invention is described as follows：
Base expanding and base expanding, installation from base expanding and base expanding crab-bolt are once completed, and are eliminated the requirement of mould base expanding and base expanding crab-bolt and are expanded using mould bottom expanding drill
It is the process in hole and time, quick for installation, it is easy to engineering to promote the use of.But exist from base expanding and base expanding crab-bolt relative to mould base expanding and base expanding crab-bolt following
Deficiency：First, the installation and base expanding and base expanding from base expanding and base expanding crab-bolt are once completed, the broken night of hole wall that cutter head is dug out during body of rod cutter head base expanding and base expanding can not
Discharge outside anchor hole, the broken night obstruction base expanding and base expanding cutter head base expanding and base expanding being stored in anchor hole, base expanding and base expanding is ineffective；Second, the crab-bolt of installation does not have
Slip casting influences durability and reliability.This crab-bolt installs grouting behind shaft or drift lining, because the gap between hole wall and the crab-bolt body of rod is small, is not easy to protect
Demonstrate,prove grouting quality.If the slip casting before crab-bolt installation, influences follow-up cutter head from base expanding and base expanding effect.In to such engineering practice,
This technology inventor has found：If hollow bolt will be designed to from base expanding and base expanding crab-bolt, above mentioned problem is just readily solved.
The design is a kind of hollow from base expanding and base expanding crab-bolt and its installation method, the crab-bolt by belt blade head the body of rod, voussoir and liner
Pipe forms.On rock or concrete behind drill straight hole, the crab-bolt is inserted into straight hole bottom, crab-bolt exposed junction connection hammering or impact are set
It is standby, to crab-bolt body of rod forced shock, relative slip is produced between the cutter head and voussoir of body of rod bottom, voussoir promotes cutter head to hole wall
Expansion, cutter head insertion straight hole wall and dig out broken night, while to body of rod forced shock, compressed using mounting cap toward inputting in the body of rod
Air, compressed air are conducted to bottom hole, are turned back from bottom hole to outer hole wall, and the broken night of hole wall that blowout cutter head is dug out (install by crab-bolt
During be connected using special mounting cap with hammering, impact device, by the hollow pipeline of crab-bolt be blown into air borehole cleaning so as to
In base expanding and base expanding remove the gred), beneficial to cutter head continue base expanding and base expanding, crab-bolt cutter head base expanding and base expanding in place after, to bar internal injection to slurries from straight hole wall with
Gap between the body of rod is overflowed, and treats grout curing, is installed from base expanding and base expanding crab-bolt and (hollow tube of crab-bolt is recycled after crab-bolt installation
Road grouting ensures the grouting quality in gap between rock or concrete hole wall and crab-bolt side wall).Because crab-bolt be designed to it is hollow, very well
Ground solved the problems, such as from the grouting problem after the base expanding and base expanding deslagging of base expanding and base expanding crab-bolt and installation, due to cutter head and straight hole bottom reaming it
Between formed locking key occlusion provide anchor force, can be irrigated between crab-bolt and hole wall adhesive strength it is low compared with anchoring adhesive cement base perfusion
Material, quick and easy for installation to replace expansion anchor and chemically-planted steel bar, reliability is high, heatproof, moisture-proof, no problem of aging.
The body of rod：The body of rod is the Elasto-plastic Metal pipe that an overall diameter is less than straight hole internal diameter, and body of rod length is more than the depth of straight hole
Degree, the manufacture material of the body of rod has necessarily moulding, for example Q235, Q345 steel, the body of rod of such material can meet to install
The requirement of plastic deformation in journey, so that intermediate bar is not in fracture with bottom；One end of the body of rod is as bottom, in bottom
Stitched deeply along the radial cut n roads of circular hollow section in the range of certain length, n desirable 2~8, it is usually even number to process for convenience, Fig. 4
It is Fig. 3 upward view, n=4 in Fig. 4, the length of joint-cutting is not less than the height of voussoir, bottom is formed n by joint-cutting and waits greatly
Small cutter head, the other end of the body of rod, in a range of pipe surface tapping of exposed junction, match somebody with somebody synthesis anchor as exposed junction with nut
Bolt.
Voussoir：Voussoir is the metal circular tube that an overall diameter is less than straight hole internal diameter, and one end of the metal circular tube is processed into and cut
Push up positive round cone or the wedge head of truncation orthopyramid body or wedge；When the quantity of joint-cutting is equal to 2, then the body of rod is taken with wedge voussoir
Match somebody with somebody；When the quantity of joint-cutting is more than 2, then the body of rod is arranged in pairs or groups with positive round cone voussoir or with the orthopyramid body voussoir of number；Joint-cutting
Length is not less than the height of wedge head；Referring to Fig. 5~Fig. 8, wherein, Fig. 5 is positive round cone voussoir, orthopyramid when Fig. 6 is n=4
(if wedge head is orthopyramid body structure, the wedge head side quantity is also n) rectangular pyramid with the quantity of cutter head to the front view of body voussoir
The side view of voussoir is identical with its front view, and Fig. 7 is wedge voussoir, and Fig. 8 is Fig. 7 side view, and the length of voussoir is more than processing
The height of conehead afterwards；Some grooves are set in radial direction of the other end along circular section of metal circular tube, groove connects with voussoir endoporus；
Pointed cone angle is less than twice of angle of friction between body of rod metal and the material of voussoir metal two, be in order in crab-bolt by pulling capacity
When, the cutter head of crab-bolt is by by the squeezing action of base expanding and base expanding hole wall, and because of the reason of friction self-locking power, the voussoir of bottom will not be from clamping
Cutter head between slip, crab-bolt expansion head keep self-locking state, provide reliable locking key effect anchor force for crab-bolt.
Internal lining pipe：Internal lining pipe is one section of plastic tube or metal tube, and the external diameter of internal lining pipe is slightly larger than the voussoir endoporus of voussoir
Internal diameter, the external diameter of internal lining pipe are slightly less than the internal diameter of the body of rod endoporus equal to the body of rod, and liner length of tube is more than the length of the joint-cutting of the body of rod
Degree；Pass through the internal lining pipe closed bottom end gap that radially grooving is cut out, during crab-bolt is installed, effect of the cutter head in voussoir
Under can open so that joint-cutting becomes big, only the compressed air in body of rod endoporus could be directed at into voussoir endoporus by internal lining pipe, from
And compressed air is delivered to after bottom hole and outwards blow out, take the broken night that cutter head is dug out out of.
Injecting paste material：There is the anchor force of locking key effect from base expanding and base expanding crab-bolt, injecting paste material can use adhesive strength compared with bar planting
The low cement based grouting material of glue, due to cement based grouting material heatproof, moisture-proof, without problem of aging, solves chemistry well
The anchoring adhesive of bar planting crab-bolt exist not heatproof, not moisture-proof and it is easy to aging the problem of, therefore, cement based grouting material can replace work
Journey chemically-planted steel bar.
In order to coordinate the hollow installation from base expanding and base expanding crab-bolt, a mounting cap need to be made.Mounting cap is one section of metal circular tube, pipe
External diameter be more than the external diameter of the body of rod, by the aperture mantle fiber of metal circular tube and anchor bolts one end, so as to the spiral shell with crab-bolt exposed junction
Line connects；Metal circular tube is designed to two types according to the difference of installation equipment：When the 1st, being installed using fullering tool, by metal
Pipe is designed to No.1 mounting cap, sees Figure 10；When the 2nd, being installed using pneumatics impact residue extraction mechanism, metal circular tube is designed to No. two
Mounting cap, see Figure 11.
Embodiment 1：
It is a kind of hollow from base expanding and base expanding crab-bolt, including the body of rod 2, voussoir 3, internal lining pipe 4 referring to Fig. 1 to Fig. 9；The body of rod 2 includes
The bottom 21 connect, intermediate bar 22, exposed junction 23 are sequentially connected, the center of the body of rod 2 offers body of rod endoporus 24, the body of rod endoporus
24 one end is extended on the end face of exposed junction 23, and the other end of body of rod endoporus 24 is extended on the end face of bottom 21, the bottom
End 21 includes cutter head 211 and joint-cutting 212, the quantity at least two of the cutter head 211, and cutter head 211 includes upper end 213, lower end
214th, outer peripheral face 215, the quantity of the joint-cutting 212 is equal with the quantity of cutter head 211, and joint-cutting 212 is located at two neighboring cutter head 211
Between, joint-cutting 212 includes first end 216, the second end 217, the 3rd end 218, the 4th end 219, and the first end 216 extends to
On the end face at end 213, the second end 217 is extended on the end face of lower end 214, and the 3rd end 218 is vertical with body of rod endoporus 24 to be communicated, the
Four ends 219 are extended on outer peripheral face 215, and one end of the intermediate bar 22 is connected with upper end 213, the other end of intermediate bar 22 with
One end of exposed junction 23 is connected, and screw thread 25 is provided with the outer peripheral face of the other end of exposed junction 23；The voussoir 3 includes being connected
The wedge head 31 connect and base 32, the wedge head 31 are positive round cone structure, and wedge head 31 includes wedge top 35, circular conical surface 37, the wedge
Top 35 is in contact with lower end 214, and the circular conical surface 37 is located at the position of face joint-cutting 212, the pointed cone angle 36 of the wedge head 31
Less than twice of the angle of friction between 3 liang of materials of the body of rod 2 and voussoir；The center of the voussoir 3 offers voussoir endoporus 33, described
One end of voussoir endoporus 33 is extended on the end face on wedge top 35, and the other end of voussoir endoporus 33 is extended on the end face of base 32,
Radial direction of the base 32 along section offers multiple grooves 34, and the groove 34 is vertical with voussoir endoporus 33 to be communicated；In described
The outer peripheral face of one end of bushing pipe 4 is connected with the inner peripheral surface of body of rod endoporus 24, in the outer peripheral face and voussoir of the other end of internal lining pipe 4
The inner peripheral surface in hole 33 is connected, and the inside of internal lining pipe 4 communicates with body of rod endoporus 24, voussoir endoporus 33.
Referring to Fig. 1 to Figure 14, a kind of hollow installation method from base expanding and base expanding crab-bolt, the installation method includes following step successively
Suddenly：
A, assemble：First one end of internal lining pipe 4 is inserted in the voussoir endoporus 33 on wedge top 35, so that one end of internal lining pipe 4
Outer peripheral face is connected with the inner peripheral surface of voussoir endoporus 33, then the other end of internal lining pipe 4 is inserted in the body of rod endoporus 24 of bottom 21,
When circular conical surface 37 is located at the position of face joint-cutting 212, wedge top 35 is in contact with lower end 214, and the periphery of the other end of internal lining pipe 4
Stop insertion when face is connected with the inner peripheral surface of body of rod endoporus 24, now, the body of rod 2, internal lining pipe 4, voussoir 3 are assembled into one knot
Structure, so as to complete the hollow assembling from base expanding and base expanding crab-bolt 1；
B, install：The first drill straight hole 71 on rock or concrete seven, so that the interior diameter of straight hole 71 is more than the outer straight of the body of rod 2
Footpath, the overall diameter (depth of straight hole 71 is according to specific design arrangement) of voussoir 3, then hollow inserted what is assembled from base expanding and base expanding crab-bolt 1
Enter in straight hole 71, during insertion, voussoir 3 is located at the lower section of the body of rod 2, when base 32 is in contact with the bottom hole 72 of straight hole 71, stops
Insert and mounting cap 8 is simultaneously connected on exposed junction 23, then hammer or impact mounting cap 8, so that the body of rod 2 is along straight hole 71 to moving down
Dynamic, cutter head 211 expands outwardly under the constraint of wedge head 31, cutter head 211 dig out the hole wall of straight hole 71 rock or concrete seven with shape
Pore-forming base expanding and base expanding 73 simultaneously produces broken night, and while hammering or impact mounting cap 8, compressed air is successively through mounting cap 8, body of rod endoporus
24th, after being delivered to bottom hole 72 after internal lining pipe 4, voussoir endoporus 33, compressed air is again along hollow between base expanding and base expanding crab-bolt 1 and straight hole 71
Gap outwards turn back and blow out broken night, when cutter head 211 and hole base expanding and base expanding 73 form locking key effect, stop hammering or impact installation
Cap 8, stop conveying compressed air, then remove mounting cap 8, injecting paste material 74 is then passed sequentially through into body of rod endoporus 24, internal lining pipe
4th, hand-hole bottom 72 after voussoir endoporus 33, when injecting paste material 74 overflows along the hollow gap between base expanding and base expanding crab-bolt 1 and straight hole 71
After stop slip casting, treat that injecting paste material 74 solidifies, it is now, hollow to be installed from base expanding and base expanding crab-bolt 1.
Embodiment 2：
With embodiment 1, difference is substance：
In structure：The wedge head 31 is orthopyramid body structure, and wedge head 31 includes wedge top 35, incline 38, the wedge top 35
It is in contact with lower end 214, the incline 38 is located at the position of face joint-cutting 212, and the pointed cone angle 36 of the wedge head 31 is less than bar
Twice of angle of friction between 3 liang of materials of body 2 and voussoir；
In step a：When incline 38 is located at the position of face joint-cutting 212, wedge top 35 is in contact with lower end 214, and internal lining pipe 4
The outer peripheral face of the other end stop insertion when being connected with the inner peripheral surface of body of rod endoporus 24.
Embodiment 3：
With embodiment 1, difference is substance：
In structure：The wedge head 31 is wedge design, and wedge head 31 includes wedge top 35, wedge surface 39, and the wedge top 35 is with
End 214 is in contact, and the wedge surface 39 be located at the position of face joint-cutting 212, the pointed cone angle 36 of the wedge head 31 be less than the body of rod 2 and
Twice of angle of friction between 3 liang of materials of voussoir；
In step a：When wedge surface 39 is located at the position of face joint-cutting 212, wedge top 35 is in contact with lower end 214, and internal lining pipe 4
The outer peripheral face of the other end stop insertion when being connected with the inner peripheral surface of body of rod endoporus 24.
Embodiment 4：
With embodiment 1, difference is substance：
The overall diameter of the internal lining pipe 4 is less than or equal to the interior diameter of body of rod endoporus 24, and the overall diameter of internal lining pipe 4 is more than voussoir
The interior diameter of endoporus 33, the length of internal lining pipe 4 are more than the distance between end 217 of first end 216 and second；The joint-cutting 212
Quantity is 2~8, and the distance between described end 217 of first end 216 and second is more than or equal to the height of wedge head 31.
Embodiment 5：
With embodiment 1, difference is substance：
In step a：The outer peripheral face of one end of the internal lining pipe 4 is connected with the inner peripheral surface of voussoir endoporus 33 to be referred to：Liner
The inner peripheral surface of the outer peripheral face of one end of pipe 4 and voussoir endoporus 33 is in clamping connection；Or by the surface tapping of one end of internal lining pipe 4,
Mantle fiber in the voussoir endoporus 33 on wedge top 35, so that the inner peripheral surface screw thread of the outer peripheral face of one end of internal lining pipe 4 and voussoir endoporus 33 connects
Connect (after internal lining pipe 4 is connected with voussoir 3, internal lining pipe 4 exposes to length of the length more than joint-cutting 212 of the part of voussoir 3)；In described
The outer peripheral face of the other end of bushing pipe 4 is connected with the inner peripheral surface of body of rod endoporus 24 and referred to：The outer peripheral face of the other end of internal lining pipe 4 with
The inner peripheral surface of body of rod endoporus 24 is in clamping connection and (makes to produce frictional resistance holding connection between the two by aperture matching)；Or will
Inserted after the other end surface smear adhesives of internal lining pipe 4 in the body of rod endoporus 24 of bottom 21, it is interior after adhesives solidification
The outer peripheral face of the other end of bushing pipe 4 is connected with the inner peripheral surface of body of rod endoporus 24.
Embodiment 6：
With embodiment 1, difference is substance：When the mounting cap 8 is No.1 mounting cap 5：
In structure：First endoporus 52 of the No.1 mounting cap 5 including No.1 mounting cap body 51 and its internal setting,
Second endoporus 53, the 3rd endoporus 54, one end of first endoporus 52 extend to the No.1 end 55 of No.1 mounting cap body 51
On end face, the other end of the first endoporus 52 communicates with one end of the second endoporus 53, the other end and the 3rd endoporus of the second endoporus 53
54 one end is vertically communicated, and the other end of the 3rd endoporus 54 is extended on the side 57 of No.1 mounting cap body 51；
In step b：The mounting cap 8 that connected on exposed junction 23 refers to：The first mantle fiber in the first endoporus 52, then will be exposed
End 23 is threadedly coupled with the first endoporus 52, so as to connect No.1 mounting cap 5 on exposed junction 23；Hammering or the impact mounting cap 8
Refer to：No. two ends 56 of No.1 mounting cap 5 are hammered using fullering tool；The compressed air is successively through mounting cap 8, bar
Bottom hole 72 is delivered to after internal hole 24, internal lining pipe 4, voussoir endoporus 33 to refer to：By the external compressed air of the 3rd endoporus 54, make pressure
Contracting air is successively after the 3rd endoporus 54, the second endoporus 53, the first endoporus 52, body of rod endoporus 24, internal lining pipe 4, voussoir endoporus 33
It is delivered to bottom hole 72.
Embodiment 7：
With embodiment 1, difference is substance：When the mounting cap 8 is No. two mounting caps 6：
In structure：No.1 endoporus 62 of No. two mounting caps 6 including No. two mounting cap bodies 61 and its internal setting,
63, No. three endoporus 64 of No. two endoporus, one end of the No.1 endoporus 62 extend to No. three ends 65 of No. two mounting cap bodies 61
On end face, the other end of No.1 endoporus 62 communicates with one end of No. two endoporus 63, the other end and No. three endoporus of No. two endoporus 63
64 one end is communicated, and the other end of No. three endoporus 64 is extended on the end face at No. four ends 66 of No. two mounting cap bodies 61；
In step b：The mounting cap 8 that connected on exposed junction 23 refers to：The first mantle fiber in No.1 endoporus 62, then will be exposed
End 23 is threadedly coupled with No.1 endoporus 62, so as to connect No. two mounting caps 6 on exposed junction 23；Hammering or the impact mounting cap 8
Refer to：The steam vent that pneumatics is first impacted to residue extraction mechanism is connected with No. three gas circuits of endoporus 64, recycles pneumatics impact residue extraction mechanism
No. two mounting caps 6 are impacted；The compressed air is successively through mounting cap 8, body of rod endoporus 24, internal lining pipe 4, voussoir endoporus 33
After be delivered to bottom hole 72 and refer to：The compressed air that pneumatics impact residue extraction mechanism is discharged through steam vent is successively through No. three endoporus 64, two
Bottom hole 72 is delivered to after number endoporus 63, No.1 endoporus 62, body of rod endoporus 24, internal lining pipe 4, voussoir endoporus 33.
Claims (9)
1. a kind of hollow from base expanding and base expanding crab-bolt, including the body of rod (2), voussoir (3), the body of rod (2) includes being sequentially connected the bottom connect
(21), intermediate bar (22), exposed junction (23), the voussoir (3) includes the wedge head (31) being connected and base (32), its feature exist
In：
It is described hollow also to include internal lining pipe (4) from base expanding and base expanding crab-bolt；The center of the body of rod (2) offers body of rod endoporus (24), institute
The one end for stating body of rod endoporus (24) is extended on the end face of exposed junction (23), and the other end of body of rod endoporus (24) extends to bottom
(21) on end face, the bottom (21) includes cutter head (211) and joint-cutting (212), and the quantity of the cutter head (211) is at least two
Individual, cutter head (211) includes upper end (213), lower end (214), outer peripheral face (215), the quantity and cutter head of the joint-cutting (212)
(211) quantity is equal, joint-cutting (212) between two neighboring cutter head (211), joint-cutting (212) include first end (216),
Second end (217), the 3rd end (218), the 4th end (219), the first end (216) are extended on the end face of upper end (213), the
Two ends (217) are extended on the end face of lower end (214), and the 3rd end (218) is vertical with body of rod endoporus (24) to be communicated, the 4th end
(219) extend on outer peripheral face (215), one end of the intermediate bar (22) is connected with upper end (213), intermediate bar (22) it is another
One end is connected with the one end of exposed junction (23), and screw thread (25) is provided with the outer peripheral face of the other end of exposed junction (23)；
The wedge head (31) includes wedge top (35), circular conical surface (37) or incline (38) or wedge surface (39), and the wedge top (35) is with
End (214) is in contact, and the circular conical surface (37) or incline (38) or wedge surface (39) are located at the position of face joint-cutting (212), described
The center of voussoir (3) offers voussoir endoporus (33), and one end of the voussoir endoporus (33) is extended on the end face of wedge top (35),
The other end of voussoir endoporus (33) is extended on the end face of base (32)；
The outer peripheral face of one end of the internal lining pipe (4) is connected with the inner peripheral surface of body of rod endoporus (24), the other end of internal lining pipe (4)
Outer peripheral face be connected with the inner peripheral surface of voussoir endoporus (33), the inside of internal lining pipe (4) and body of rod endoporus (24), voussoir endoporus
(33) communicate.
2. one kind according to claim 1 is hollow from base expanding and base expanding crab-bolt, it is characterised in that：The overall diameter of the internal lining pipe (4)
Less than or equal to the interior diameter of body of rod endoporus (24), the overall diameter of internal lining pipe (4) is more than the interior diameter of voussoir endoporus (33), internal lining pipe
(4) length is more than the distance between first end (216) and the second end (217).
3. one kind according to claim 1 is hollow from base expanding and base expanding crab-bolt, it is characterised in that：The quantity of the joint-cutting (212) is 2
Individual~8, the distance between the first end (216) and the second end (217) are more than or equal to the height of wedge head (31).
4. one kind according to claim 1 is hollow from base expanding and base expanding crab-bolt, it is characterised in that：The wedge head (31) is positive round cone
Structure, orthopyramid body structure or wedge design, the pointed cone angle (36) of wedge head (31) are less than the body of rod (2) and the material of voussoir (3) two
Between twice of angle of friction.
5. one kind according to claim 1 is hollow from base expanding and base expanding crab-bolt, it is characterised in that：Footpath of the base (32) along section
To multiple grooves (34) are offered, the groove (34) is vertical with voussoir endoporus (33) to be communicated.
A kind of 6. hollow installation method from base expanding and base expanding crab-bolt described in claim 1, it is characterised in that：The installation method is successively
Comprise the following steps：
A, assemble：First one end of internal lining pipe (4) is inserted in the voussoir endoporus (33) of wedge top (35), so that the one of internal lining pipe (4)
The outer peripheral face at end is connected with the inner peripheral surface of voussoir endoporus (33), then the other end of internal lining pipe (4) is inserted to the bar of bottom (21)
In internal hole (24), when circular conical surface (37) or incline (38) or wedge surface (39) are located at the position of face joint-cutting (212), wedge top (35)
It is in contact with lower end (214), and stop when the outer peripheral face of the other end of internal lining pipe (4) is connected with the inner peripheral surface of body of rod endoporus (24)
Only insert, now, the body of rod (2), internal lining pipe (4), voussoir (3) are assembled into one structure, hollow from base expanding and base expanding crab-bolt (1) so as to complete
Assembling；
B, install：The first drill straight hole (71) on rock or concrete (7), so that the interior diameter of straight hole (71) is more than the body of rod (2)
The overall diameter of overall diameter, voussoir (3), then by assemble it is hollow inserted from base expanding and base expanding crab-bolt (1) in straight hole (71), during insertion, wedge
Block (3) is located at the lower section of the body of rod (2), when base (32) is in contact with the bottom hole (72) of straight hole (71), stop insertion and outside
Reveal and mounting cap (8) is connected on end (23), then hammer or impact mounting cap (8), so that the body of rod (2) is along straight hole (71) to moving down
Dynamic, cutter head (211) expands outwardly under the constraint of wedge head (31), and cutter head (211) digs out the rock or mixed of the hole wall of straight hole (71)
Solidifying soil (7) is to form hole base expanding and base expanding (73) and produce broken night, and while hammering or impact mounting cap (8), compressed air is successively through peace
After being delivered to bottom hole (72) after dress cap (8), body of rod endoporus (24), internal lining pipe (4), voussoir endoporus (33), compressed air is again in
The empty gap between base expanding and base expanding crab-bolt (1) and straight hole (71), which is outwards turned back, blows out broken night, when cutter head (211) and hole base expanding and base expanding (73)
When forming locking key effect, stop hammering or impact mounting cap (8), stop conveying compressed air, then remove mounting cap (8), then
Injecting paste material (74) is passed sequentially through into body of rod endoporus (24), internal lining pipe (4), voussoir endoporus (33) hand-hole bottom (72) afterwards, works as note
Pulp material (74) stops slip casting after being overflowed along the hollow gap between base expanding and base expanding crab-bolt (1) and straight hole (71), treats injecting paste material
(74) solidify, it is now, hollow to be installed from base expanding and base expanding crab-bolt (1).
A kind of 7. hollow installation method from base expanding and base expanding crab-bolt according to claim 6, it is characterised in that：
In step a：
The outer peripheral face of one end of the internal lining pipe (4) is connected with the inner peripheral surface of voussoir endoporus (33) to be referred to：The one of internal lining pipe (4)
The outer peripheral face at end and the inner peripheral surface of voussoir endoporus (33) are in clamping connection；Or by the surface tapping of one end of internal lining pipe (4), wedge top
(35) voussoir endoporus (33) interior mantle fiber, so that the inner peripheral surface spiral shell of the outer peripheral face of one end of internal lining pipe (4) and voussoir endoporus (33)
Line connects；
The outer peripheral face of the other end of the internal lining pipe (4) is connected with the inner peripheral surface of body of rod endoporus (24) to be referred to：Internal lining pipe (4)
The outer peripheral face of the other end and the inner peripheral surface of body of rod endoporus (24) are in clamping connection；Or the other end surface smear by internal lining pipe (4)
Inserted after adhesives in the body of rod endoporus (24) of bottom (21), after adhesives solidification, outside the other end of internal lining pipe (4)
Side face is connected with the inner peripheral surface of body of rod endoporus (24).
A kind of 8. hollow installation method from base expanding and base expanding crab-bolt according to claim 6, it is characterised in that：
In step b, when the mounting cap (8) is No.1 mounting cap (5)：
The No.1 mounting cap (5) includes No.1 mounting cap body (51) and its internal the first endoporus (52) set, in second
Hole (53), the 3rd endoporus (54), one end of first endoporus (52) extend to the No.1 end of No.1 mounting cap body (51)
(55) on end face, the other end of the first endoporus (52) communicates with one end of the second endoporus (53), the second endoporus (53) it is another
End is vertical with one end of the 3rd endoporus (54) to be communicated, and the other end of the 3rd endoporus (54) extends to No.1 mounting cap body (51)
On side (57)；
The mounting cap (8) that connected on exposed junction (23) refers to：First in the first endoporus (52) interior mantle fiber, then by exposed junction (23)
It is threadedly coupled with the first endoporus (52), so as to connect No.1 mounting cap (5) on exposed junction (23)；
The hammering or impact mounting cap (8) refer to：No. two ends (56) of No.1 mounting cap (5) are hammered into shape using fullering tool
Hit；
The compressed air is delivered to hole through mounting cap (8), body of rod endoporus (24), internal lining pipe (4), voussoir endoporus after (33) successively
Bottom (72) refers to：By the 3rd endoporus (54) external compressed air, make compressed air successively through the 3rd endoporus (54), the second endoporus
(53), it is delivered to bottom hole (72) after the first endoporus (52), body of rod endoporus (24), internal lining pipe (4), voussoir endoporus (33).
A kind of 9. hollow installation method from base expanding and base expanding crab-bolt according to claim 6, it is characterised in that：
In step b, when the mounting cap (8) is No. two mounting cap (6)：
No. two mounting caps (6) include No. two mounting cap bodies (61) and its internal No.1 endoporus (62) set, in No. two
Hole (63), No. three endoporus (64), one end of the No.1 endoporus (62) extend to No. three ends of No. two mounting cap bodies (61)
(65) on end face, the other end of No.1 endoporus (62) communicates with one end of No. two endoporus (63), No. two endoporus (63) it is another
End communicates with one end of No. three endoporus (64), and the other end of No. three endoporus (64) extends to No. four of No. two mounting cap bodies (61)
On the end face for holding (66)；
The mounting cap (8) that connected on exposed junction (23) refers to：First in No.1 endoporus (62) interior mantle fiber, then by exposed junction (23)
It is threadedly coupled with No.1 endoporus (62), so as to connect No. two mounting caps (6) on exposed junction (23)；
The hammering or impact mounting cap (8) refer to：Pneumatics is first impacted to the steam vent and No. three endoporus (64) gas of residue extraction mechanism
Road connects, and recycles pneumatics impact residue extraction mechanism to impact No. two mounting caps (6)；
The compressed air is delivered to hole through mounting cap (8), body of rod endoporus (24), internal lining pipe (4), voussoir endoporus after (33) successively
Bottom (72) refers to：The compressed air that pneumatics impact residue extraction mechanism is discharged through steam vent is successively through No. three endoporus (64), No. two endoporus
(63), it is delivered to bottom hole (72) after No.1 endoporus (62), body of rod endoporus (24), internal lining pipe (4), voussoir endoporus (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610478775.9A CN105951825B (en) | 2016-06-24 | 2016-06-24 | It is a kind of hollow from base expanding and base expanding crab-bolt and its installation method |
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|---|---|---|---|
| CN201610478775.9A CN105951825B (en) | 2016-06-24 | 2016-06-24 | It is a kind of hollow from base expanding and base expanding crab-bolt and its installation method |
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| Publication Number | Publication Date |
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| CN105951825A CN105951825A (en) | 2016-09-21 |
| CN105951825B true CN105951825B (en) | 2018-01-09 |
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|---|---|---|---|
| CN201610478775.9A Active CN105951825B (en) | 2016-06-24 | 2016-06-24 | It is a kind of hollow from base expanding and base expanding crab-bolt and its installation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117957A (en) * | 2019-03-29 | 2019-08-13 | 武大巨成结构股份有限公司 | A kind of installation method of concrete hollow anchor pole tooling |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093919A (en) * | 2019-03-29 | 2019-08-06 | 武大巨成结构股份有限公司 | A kind of concrete hollow anchor pole tooling |
| CN112554183A (en) * | 2020-12-11 | 2021-03-26 | 中铁二十局集团有限公司 | Expandable anchoring device and method |
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| CN104976205A (en) * | 2015-07-09 | 2015-10-14 | 浙江上锚建筑科技有限公司 | Self-bottom expanding self-tapping anchor bolt |
| CN205822182U (en) * | 2016-06-24 | 2016-12-21 | 武大巨成结构股份有限公司 | A kind of hollow is from base expanding and base expanding crab-bolt |
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| US5599140A (en) * | 1995-09-13 | 1997-02-04 | The Eastern Company | Mine roof support system including an expansion anchor with means assisting resin component mixing and method of installation thereof |
| KR100797818B1 (en) * | 2007-07-09 | 2008-02-01 | (주)서림건설 | Fixing device of removal rock-bolt |
| CN201496085U (en) * | 2009-09-18 | 2010-06-02 | 武汉武大巨成加固实业有限公司 | Rear hole expansion self-locking anchor bar capable of being installed rapidly |
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| CN205822182U (en) * | 2016-06-24 | 2016-12-21 | 武大巨成结构股份有限公司 | A kind of hollow is from base expanding and base expanding crab-bolt |
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| CN110117957A (en) * | 2019-03-29 | 2019-08-13 | 武大巨成结构股份有限公司 | A kind of installation method of concrete hollow anchor pole tooling |
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| CN105951825A (en) | 2016-09-21 |
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Address after: No. 4, Wuda Science and Technology Park Road, Donghu Development Zone, Wuhan City, Hubei Province, 430223 Patentee after: Wuhan Jucheng Structure Group Co.,Ltd. Address before: No. 4, Wuda Science and Technology Park Road, Donghu Development Zone, Wuhan City, Hubei Province, 430223 Patentee before: WUDA JUCHENG STRUCTURE Co.,Ltd. |
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