CN105821876B - A kind of mechanical linkage expands hair style resistance to plucking anchor - Google Patents

A kind of mechanical linkage expands hair style resistance to plucking anchor Download PDF

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Publication number
CN105821876B
CN105821876B CN201610304176.5A CN201610304176A CN105821876B CN 105821876 B CN105821876 B CN 105821876B CN 201610304176 A CN201610304176 A CN 201610304176A CN 105821876 B CN105821876 B CN 105821876B
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China
Prior art keywords
stress cage
cage bar
support disk
bending
pore channel
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CN201610304176.5A
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Chinese (zh)
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CN105821876A (en
Inventor
许四法
张义平
严熙
冯斌
许斌
胡奇超
陈浩
张凯伟
姚王晶
陈启功
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74Means for anchoring structural elements or bulkheads
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0093Accessories
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00Miscellaneous
    • E02D2600/30Miscellaneous comprising anchoring details

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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)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

Expand hair style resistance to plucking anchor the invention discloses a kind of mechanical linkage, including the anchoring section in the embedded soil body and the free segment for anchoring anchoring section, anchoring section has a support disk, the connected pore channel of two insertion total lengths is offered on support disk, internal thread is respectively arranged with the inwall of connected pore channel described in two, and stress cage bar is provided with connected pore channel, one end of stress cage bar passes through connected pore channel and end to have bending head, and the other end upwardly extends to form described free segment;There is the external screw thread acted on described screw-internal thread fit in described stress cage bar;During initial position, the bending direction of the bending head of the stress cage bar described in two is towards the center position of support disk, the described bending head of described support disk covering;After described stress cage bar rotates 180 degree, the bending head of two stress cage bars is outwards rotated and stretches out support disk, and bending direction is oppositely arranged, and described bending head forms enlarged footing in the end of anchoring section.

Description

A kind of mechanical linkage expands hair style resistance to plucking anchor
Technical field
Expand hair style resistance to plucking anchor the present invention relates to a kind of mechanical linkage, belong to civil engineering side slope and dam strengthening technology Field, it can be used for the engineering constructions such as tunnel, side slope, mine, tunnel, dam body, foundation ditch, foundation stabilization.
Background technology
In the engineerings such as foundation pit enclosure, slope reinforcement, in order to prevent being slid inside Rock And Soil, failure by shear is produced, , it is necessary to carry out consolidation process to Rock And Soil before later stage process is carried out, to strengthen the stability of Rock-soil Mass Structure, often at present The anchor pole used is mechanical rock bolt, pipe-seam type anchor rod and adhesive type anchor pole.
The A of Publication No. CN 104929670 Chinese patent discloses a kind of mechanical anchor pole of wing formula.The anchor pole is by anchoring spiral shell Cap, washer plate, anchor rod body, retaining pin, push wing steel pipe, positioning bar, wing, the wing opened, reinforcing bar annulus, wing bending ring, Supporting station post is constituted, and the wing formula anchor pole has a cylindrical anchor rod body, is provided with what can be extended in the bottom of anchor rod body Wing, reinforcing bar annulus and the wing bending ring of plate shape, are provided with supporting station post, supporting station post between wing bending ring and anchor rod body Weld together with anchor rod body, wing bending ring one end is welded on wing root, and spiral-lock is between two supporting station posts In the hole of reinforcing bar annulus, push wing steel pipe is housed in the top slip cap of reinforcing bar annulus, it is equal in 120 degree on the surface of push wing steel pipe Even distribution is welded with reinforcing bar positioning bar;
The Y of Publication No. CN 201031391 Chinese patent discloses a kind of umbrella Pulling-Resistant Anchor Rod.The anchor pole is twisted by power transmission Rope and lower sleeve portion, low bottom-disc, top bottom-disc, balancing pole, from spreader bar composition, under a stretching force, the umbrella wing be balancing pole and from expand Bar opens, and forms floor space very thick earth pillar, is provided using the soil body weight in itself and soil with the soil shearing strength of itself The required withdrawal resistance in basis.
The U of Publication No. CN 202559350 Chinese patent discloses a kind of Pulling-Resistant Anchor Rod, and the bolt body is vertically arranged There is at least one locator.The locator includes three positioning convex rings that ring bolt body excircle is uniformly arranged.It is described fixed Position bulge loop forms isosceles trapezoidal structure by base of bolt body, and at least one locator is vertically provided with bolt body, because And improve pulling test strength.
What above patent was used is all mechanical rock bolt, and its feature is that good mechanical property, anchoring effect are good, in side slope plus Gu and it is used widely in foundation pit enclosure construction.However, in Practical Project, anchor pole duct inwall is by disturbance, its rock Soil disturbance is more violent, and anchoring effect limits to very much, easily causes and is disengaged with Rock And Soil, and anchor pole is directly pulled out from duct.This Outside, the anchoring face of general mechanical rock bolt is smaller, and the contact surface between Rock And Soil is less, it is impossible to meet the work under big stress Range request.
In summary, a kind of more effective anchor pole is developed, for slope reinforcement and foundation resistance to plucking, anti-floating right and wrong Often it is necessary.
The content of the invention
In order to overcome the drawbacks described above that existing machinery formula anchor pole is present, the present invention provide a kind of simple structure, reasonable stress, The splendid mechanical linkage of quick construction, anchoring effect expands hair style resistance to plucking anchor.
The technical solution adopted by the present invention is:
A kind of mechanical linkage expands hair style resistance to plucking anchor, including bolt body, and described bolt body is included in the embedded soil body Anchoring section and free segment for anchoring anchoring section, it is characterised in that:Described anchoring section has a support disk, described Offered on support disk in being respectively arranged with the connected pore channel of two insertion total lengths, the inwall of the connected pore channel described in two Be provided with stress cage bar in screw thread, and described connected pore channel, one end of described stress cage bar through connected pore channel and End has bending head, and the other end upwardly extends to form described free segment;In described stress cage bar have with it is described in The external screw thread of screw thread mating reaction;
During initial position, the bending direction of the bending head of the stress cage bar described in two is towards the center side of support disk To the described bending head of described support disk covering;After described stress cage bar rotates 180 degree, two stress cage bars Bending head is outwards rotated and stretches out support disk, and bending direction is oppositely arranged, and described bending head is formed in the end of anchoring section Enlarged footing.
The position for also including correspondence stress cage bar on steel plate washer, described steel plate washer offers two through holes, and described Stress cage bar be fixed on by steel plate washer on Tu Bi.
In the present invention, in order to which the internal thread ensured in external screw thread and duct is filled by the soil body, can smoothly it enter to rotate OK, certain closed protective need to be carried out to anchoring section in advance, can be wrapped up using temporal material.
The present invention is by the way that after free segment carries out force tensioning to control reinforcing bar, anchor head section forms an enlarged footing, passes through The cooperation of internal and external threads, originally the bending head of anchor head muscle be hidden in round tray plane.Free segment Strong Wrench to by Advocate muscle carry out rotation 180 degree, bending head rotate to outside plane so as to formed one expansion anchor head, then to stress cage bar carry out Exert a force tensioning.Enlarged footing adds the contact area between anchor pole and Rock And Soil, so substantially increase itself and Rock And Soil it Between anchor force, anchoring effect is very good.
Beneficial effects of the present invention are embodied in:
1st, enlarged footing of the invention adds the contact area between anchor pole and Rock And Soil, so substantially increase its with Anchor force between Rock And Soil, anchoring effect is very good.
2nd, intensity height, good toughness, anchoring effect are good, available for engineering construction fields such as dam strengthening, tunnel reinforcements;Have Quick construction, efficiently, good endurance the advantages of.
Brief description of the drawings
Fig. 1 is front view of the invention.
Fig. 2 is top view of the invention.
Embodiment
Referring to Figures 1 and 2, a kind of mechanical linkage expands hair style resistance to plucking anchor, including bolt body, described bolt body bag The anchoring section in the embedded soil body and the free segment for anchoring anchoring section are included, described anchoring section has a support disk 1, described Support disk 1 on offer and set respectively on the connected pore channels of two insertion total lengths, the inwall of the connected pore channel described in two There is an internal thread 11, and be provided with stress cage bar 2 in described connected pore channel, one end of described stress cage bar 2 is through connection Duct and end have bending head 22, and the other end upwardly extends to form described free segment;Have in described stress cage bar 2 With the external screw thread 21 of the described mating reaction of internal thread 11;
During initial position, in the bending direction direction support disk 1 of the bending head 22 of the stress cage bar 2 described in two Heart direction, described support disk 2 covers described bending head 22;After described stress cage bar 2 rotates 180 degree, two by Advocate muscle 2 bending head 22 outwards rotate and stretch out support disk 1, bending direction is oppositely arranged, and described bending head 22 is in anchor Gu the end of section forms enlarged footing.
The position for also including correspondence stress cage bar 2 on steel plate washer 3, described steel plate washer 3 offers two through holes, and Described stress cage bar 2 is fixed on Tu Bi by steel plate washer 3.
In the present invention, in order to which the internal thread ensured in external screw thread and duct is filled by the soil body, can smoothly it enter to rotate OK, certain closed protective need to be carried out to anchoring section in advance, can be wrapped up using temporal material.
The present invention is by the way that after free segment carries out force tensioning to control reinforcing bar, anchor head section forms an enlarged footing, passes through The cooperation of internal and external threads, originally the bending head of anchor head muscle be hidden in round tray plane.Free segment Strong Wrench to by Advocate muscle carry out rotation 180 degree, bending head rotate to outside plane so as to formed one expansion anchor head, then to stress cage bar carry out Exert a force tensioning.Enlarged footing adds the contact area between anchor pole and Rock And Soil, so substantially increase itself and Rock And Soil it Between anchor force, anchoring effect is very good.
In the present embodiment, after anchor pole duct drilling is finished, anchor pole is sling, anchorage head alignment opening of the channel, from anchoring termination Start push and enter duct, until reaching bottom hole, then carry out turn-knob in free segment by using torque spanner, and then elbow head exists Rotated on support disk, in anchored end one enlarged footing of formation, anchor pole and Rock And Soil is fully contacted.
During the present embodiment Specific construction, its step is as follows:
The first step:According to actual condition, length, anchoring depth and the freedom length of anchor pole, tray position are designed;
Second step:Before anchor pole is laid, to ensure the perpendicularity of anchor pole.It is controlled by with two cable wires in both direction. Certain sealed envelope is carried out to anchoring section simultaneously, to support the internal thread and the external screw thread of stress cage bar in disk duct can It is isolated entirely from the soil body.
3rd step:After anchor pole placement is finished, start to carry out turn-knob to cage bar in free segment, after after rotation 180 degree, in anchoring End forms an enlarged footing.
4th step:After stress cage bar complete rotate after, start to carry out force tensioning to it, make its anchored end elbow part with Rock And Soil fully contacts and stings tight.
5th step:After the completion of tensioning, it is fixed in by steel plate washer and anchorage on Tu Bi.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention is also and in art technology Personnel according to present inventive concept it is conceivable that equivalent technologies mean.

Claims (2)

1. a kind of mechanical linkage expands hair style resistance to plucking anchor, including bolt body, described bolt body is included in the embedded soil body Anchoring section and the free segment for anchoring anchoring section, it is characterised in that:Described anchoring section has a support disk, described branch Hold round and be respectively arranged with interior spiral shell on the connected pore channel that two insertion total lengths are offered on disk, the inwall of the connected pore channel described in two Be provided with stress cage bar in line, and described connected pore channel, described stress cage bar one end is through connected pore channel and holds Portion has bending head, and the other end upwardly extends to form described free segment;Have and described interior spiral shell in described stress cage bar The external screw thread of line mating reaction;
During initial position, the center position of the bending direction direction support disk of the bending head of the stress cage bar described in two, The described bending head of described support disk covering;After described stress cage bar rotates 180 degree, the bending of two stress cage bars Head is outwards rotated and stretches out support disk, and bending direction is oppositely arranged, and described bending head is formed in the end of anchoring section to be expanded Head.
2. a kind of mechanical linkage as claimed in claim 1 expands hair style resistance to plucking anchor, it is characterised in that:Also include steel plate washer, institute The position of correspondence stress cage bar offers two through holes on the steel plate washer stated, and described stress cage bar is fixed by steel plate washer On Yu Tubi.
CN201610304176.5A 2016-05-09 2016-05-09 A kind of mechanical linkage expands hair style resistance to plucking anchor Active CN105821876B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610304176.5A CN105821876B (en) 2016-05-09 2016-05-09 A kind of mechanical linkage expands hair style resistance to plucking anchor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610304176.5A CN105821876B (en) 2016-05-09 2016-05-09 A kind of mechanical linkage expands hair style resistance to plucking anchor

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CN105821876B true CN105821876B (en) 2017-10-20

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT9590U1 (en) * 2006-08-17 2007-12-15 Atlas Copco Mai Gmbh RUBBER TANK AND INFLATION ADAPTER FOR THESE
CN103104270A (en) * 2013-02-19 2013-05-15 裴志胜 Shear type expansion anchor rod and extension application thereof
CN105178993A (en) * 2015-08-24 2015-12-23 三峡大学 Bendable expansion anchor rod
CN205742180U (en) * 2016-05-09 2016-11-30 浙江工业大学 Mechanical linkage enlarges hair style anti anchor of pulling out

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