CN206707746U - A kind of steel tendon anchor pole for being used to reinforce weak surrounding rock - Google Patents

A kind of steel tendon anchor pole for being used to reinforce weak surrounding rock Download PDF

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Publication number
CN206707746U
CN206707746U CN201720546077.8U CN201720546077U CN206707746U CN 206707746 U CN206707746 U CN 206707746U CN 201720546077 U CN201720546077 U CN 201720546077U CN 206707746 U CN206707746 U CN 206707746U
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CN
China
Prior art keywords
anchoring
support wire
steel
anchor pole
wire
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Expired - Fee Related
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CN201720546077.8U
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Chinese (zh)
Inventor
高富强
王晓强
李安杰
张坤
何朋立
韩志会
刘鹏
郭进军
刘翠然
王乐平
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Luoyang Institute of Science and Technology
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Luoyang Institute of Science and Technology
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Priority to CN201720546077.8U priority Critical patent/CN206707746U/en
Application granted granted Critical
Publication of CN206707746U publication Critical patent/CN206707746U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of steel tendon anchor pole for being used to reinforce weak surrounding rock, the anchor pole includes anchor head and the body of rod, the front end of the body of rod is stretched into the drilling of country rock, the tail end of the body of rod is connected with anchor head, the described body of rod is made up of anchoring section and free segment, and anchoring section includes several anchoring sections being sequentially connected, and each anchoring section includes rigid support wire device, Shu Jie and multi beam steel wire, after multi beam steel wire passes through rigid support wire device, the both ends of steel wire carry out colligation by beam section;Free segment freely saves including what several were sequentially connected, and each freely save includes elastic support wire device, Shu Jie and multi beam steel wire, and after multi beam steel wire passes through elastic support wire device, the both ends of steel wire pass through beam section and carry out colligation;Wherein, the tail end for anchoring section is connected with the front end freely saved, and the tail end freely saved is connected with anchor head.In the anchor pole course of work, soft rock large deformation promotes anchor rod body to extrude elastic support wire device, increases rock-bolt length, discharges surrouding rock stress, completes the reinforcing task of weak surrounding rock.

Description

A kind of steel tendon anchor pole for being used to reinforce weak surrounding rock
Technical field
It the utility model is related to the anchor pole of Geotechnical Engineering field of reinforcement, and in particular to a kind of to be used to reinforce weak surrounding rock Steel tendon anchor pole.
Background technology
In the field of engineering technology such as Tunnel Engineering, base pit engineering, Hydraulic and Hydro-Power Engineering, using Surrounding Rock Supported by Bolt be through Frequently with method.With the increase of Underground Engineering Excavation depth, the geological conditions that bolt anchorage faces also becomes increasingly complex, such as The phenomenon of weak surrounding rock large deformation easily occurs for deep wall rock tunnel, causes pull-out or the tensile failure model of anchor pole, causes surrounding rock consolidation Failure.Weak surrounding rock generally refer to low intensity, porosity are big, degree of consolidation is poor, by construction face cutting and weathering influenceed significantly or Contain the loose, scattered, soft of a large amount of swelling wall rocks, incompetent beds.It is big that country rock easily occurs under high-ground stress effect for this kind of rock stratum Deformation, meet water and easily soften, cause country rock along weak structural face slump.Therefore, need to be examined using bolt anchorage under the geological conditions The problem of considering country rock large deformation, namely anchor pole should also possess preferable deformation performance while country rock is reinforced, with suitable for surrounding rock The requirement of stress release.
At present, lot of domestic and international scholar and engineers and technicians are studied and showed to the large deformation anchor rod for reinforcing soft rock Application, as patent CN201210139092.2 provides a kind of constant resistance and large deformation anchor rod, this method uses tapered rod and sleeve Relative slip realize the increase of body of rod length, patent CN201210021633.1, which is provided, a kind of to be increased resistance and allows pressure large deformation anchor Bar, this method realize the increase of body of rod length by the relative motion of sleeve and sliding key.Above-mentioned large deformation anchor rod is in certain journey The requirement of country rock large deformation is met on degree, but there is also the shortcomings of complicated, resistance is insufficient, cost of installation and use is high.
Utility model content
The purpose of this utility model is to provide a kind of steel tendon anchor pole for being used to reinforce weak surrounding rock, disclosure satisfy that soft rock is big The requirement of deformation.
Used technical scheme is the utility model to achieve the above object:A kind of steel wire for being used to reinforce weak surrounding rock Beam anchor pole, the anchor pole include anchor head and the body of rod, and the front end of the body of rod is stretched into the drilling of country rock, and the tail end of the body of rod is connected with anchor head, The described body of rod is made up of anchoring section and free segment, and anchoring section includes several anchoring sections being sequentially connected, and each anchoring section is equal Including rigid support wire device, Shu Jie and multi beam steel wire, after multi beam steel wire passes through rigid support wire device, the both ends of steel wire are carried out by beam section Colligation;Free segment freely saves including what several were sequentially connected, and each freely save includes elastic support wire device, Shu Jie and multi beam steel Silk, after multi beam steel wire passes through elastic support wire device, the both ends of steel wire carry out colligation by beam section;Wherein, anchor the tail end of section with from Connected by the front end saved, the tail end freely saved is connected with anchor head.
Wherein, described anchoring section at least two, the connection end of two neighboring anchoring section share a Shu Jie, and each anchor Admittedly the steel wire saved is the overall structure of continuity.
Wherein, described freely save is at least three, and the two neighboring connection end freely saved shares a Shu Jie, and each It is the overall structure continued by the steel wire saved.
Wherein, it is coated with lubricant grease on the described body of rod, described free segment is arranged with PVC sleeve pipes, before PVC sleeve pipes The beam section at end and anchoring section front end is tightly connected, and the end of PVC sleeve pipes is slidably located on anchor head.
Wherein, described rigid support wire device includes some support wire rings being arranged concentrically, and each support wire ring passes through arranged in a crossed manner Floor connects as one, and the outer rim of support wire ring is evenly equipped with the through hole for wearing steel wire, each through hole on same support wire ring It is centrally located on the circumference being arranged concentrically with the support wire ring.
Preferably, described support wire ring is at least three, and the spaced radial between two neighboring support wire ring is identical.
Wherein, described elastic support wire device includes rubber ring, and the outer rim of rubber ring is evenly equipped with the orientation that steel wire is set for card Groove, the center of rubber ring are provided with telescopic cavity I.
Preferably, the outer rim of telescopic cavity I is evenly equipped with multiple sawtooth, and is evenly equipped with the rubber ring being located at outside telescopic cavity I whole Multiple telescopic cavities II that body is set in a ring, the V-shaped structure on the rip cutting section of rubber ring of telescopic cavity II, and each telescopic cavity II Do not connect mutually.
In the utility model, described Shu Jiewei reinforcing bar ring colligation sections.
Beneficial effect:1st, after the utility model passes through rigid or elastic support wire device using multi beam steel wire, carried out by beam section The colligation of end, steel tendon is formed the thin ends and thick middle structure of similar " shuttle-type ", increase the body of rod and cement mortar Contact area, enhance the anchor force of anchor pole.
2nd, in the anchor pole course of work, soft rock large deformation makes the body of rod of anchor pole extrude elastic support wire device, elastic support wire device quilt After compressing contraction distortion, the length of the free segment of the body of rod increases, and increases the length of anchor pole, discharges surrouding rock stress, completes weak The reinforcing of country rock, meet the requirement of soft rock large deformation.
3rd, anchoring section at least two, freely saves and is at least three, ensures the anchoring strength of the body of rod;And the free segment of the body of rod PVC sleeve pipes are arranged with outside, the slurry for making free segment and being injected in drilling is isolated, and is avoided slurry from causing the bonding of free segment, is entered And the situation for causing free segment elastic telescopic to fail.
4th, multi beam steel wire passes through support wire ring, the anchoring section for making anchoring section that there is multilayer steel wire to be formed, after slip casting, " shuttle-type " The steel tendon to be scattered in structure increases anchoring section and the active area of cement mortar, enhances anchor-holding force of anchor bolt, avoids anchor pole It is drawn out in the course of the work.
5th, the inside of rubber ring is provided with telescopic cavity I, and the outer rim of telescopic cavity I is evenly equipped with the telescopic cavity II being serrated, anchor pole Pulling force incrementally increases with weak surrounding rock deformation, and telescopic cavity I and telescopic cavity II shrink compression successively, increase body of rod length, simultaneously It is released surrouding rock stress.
Brief description of the drawings
Fig. 1 is the utility model anchor bolt construction schematic diagram;
Fig. 2 is along the schematic diagram of line A-A in Fig. 1;
Fig. 3 is along the rip cutting profile of line B-B in Fig. 1.
Reference:1st, anchor head, 2, anchoring section, 20, anchoring section, 3, free segment, 30, freely save, 4, rigid support wire device, 40th, support wire ring, 41, floor, 5, elastic support wire device, 50, rubber ring, 51, guide slot, 52, telescopic cavity I, 53, telescopic cavity II, 6, Shu Jie, 7, steel wire, 8, PVC sleeve pipes, 9, anchor pier, 10, nut, 11, drilling.
Embodiment
Technological means, creation characteristic and the purpose reached to realize the utility model readily appreciate, with reference to Schematic diagram, the utility model is expanded on further, but the utility model scope claimed is not limited to specific embodiment party Scope described in formula.
A kind of steel tendon anchor pole for being used to reinforce weak surrounding rock, the anchor pole include anchor head 1 and the body of rod, profit are coated with the body of rod Lubricating oil fat, the front end of the body of rod are stretched into the drilling 11 of country rock, and the tail end of the body of rod is connected with anchor head 1, as shown in figure 1, described bar Body is made up of anchoring section 2 and free segment 3, and free segment 2 is arranged with PVC sleeve pipes 8.
As shown in figure 1, anchoring section 2 therein includes the anchoring section 20 that several are sequentially connected, each anchoring section 20 wraps Rigid support wire device 4, Shu Jie and multi beam steel wire are included, after multi beam steel wire passes through rigid support wire device 4, the both ends of steel wire are carried out by beam section Colligation;As shown in Fig. 2 rigid support wire device 4 includes some support wire rings 40 being arranged concentrically, each support wire ring 40 is by arranged in a crossed manner Floor 41 connects as one, and the outer rim of support wire ring 40 is evenly equipped with the through hole for wearing steel wire, each on same support wire ring 40 Through hole is centrally located on the circumference being arranged concentrically with the support wire ring.Preferably, support wire ring 40 is at least three, two neighboring support Spaced radial between silk ring 40 is identical.
As shown in figure 1, free segment 3 therein freely saves 30 including what several were sequentially connected, each freely save 30 and wrap Elastic support wire device 5, Shu Jie and multi beam steel wire are included, after multi beam steel wire passes through elastic support wire device 5, the both ends of steel wire are carried out by beam section Colligation;As shown in figure 3, elastic support wire device 5 includes rubber ring 50, the outer rim of rubber ring 50 is evenly equipped with the orientation that steel wire is set for card Groove 51, the center of rubber ring 50 are provided with telescopic cavity I 52.Preferably, the outer rim of telescopic cavity I 52 is evenly equipped with multiple sawtooth, and is located at Multiple telescopic cavities II 53 in integral ring-shaped setting are evenly equipped with rubber ring 50 outside telescopic cavity I 52, telescopic cavity II 53 is in rubber V-shaped structure on the rip cutting section of circle 50, and each telescopic cavity II 50 does not connect mutually.In specific implementation process, telescopic cavity II is also It can use other structure types, such as corrugated, zigzag structure, the dilatation dynamics of rubber ring can be realized.
Wherein, the tail end of anchoring section 20 is connected with freely saving 30 front end, is freely saved 30 tail end and is connected with anchor head 1.PVC The front end of sleeve pipe 8 is tightly connected with the beam section of the front end of anchoring section 2, and the end of PVC sleeve pipes 8 is slidably located on anchor head 1.This practicality Beam section 6 in new is high strength cast iron ring colligation section.
Preferably, anchoring section 20 at least two, 30 is freely saved and is at least three.Two anchoring sections 20 are listed in Fig. 1 30 are freely saved with least four.Wherein, the connection end of two neighboring anchoring section 20 shares a Shu Jie, and the steel of each anchoring section 20 Silk is the overall structure continued, i.e. the steel wire of anchoring section 2 is the continuously overall structure without disconnection;It is two neighboring freely save 30 company Connect end and share a Shu Jie, and it is each freely save 30 steel wire to continue the overall structure without disconnection, i.e. the steel wire of free segment 3 is company The continuous entirety without disconnection.Preferably, the steel wire of free segment 3 and 2 outermost steel wire of anchoring section are the continuously entirety knot without disconnection Structure.
The concrete construction method of steel tendon anchor pole of the present utility model is:Step 1: by multi beam steel wire smooth out with the fingers it is straight, align, set It is set to isometric, in the beam section ring colligation of steel wire one end, forms steel tendon;
Step 2: make steel tendon uniformly across the through hole set on the support wire ring 40 in rigid support wire device 4, the end face of formation Then structure is as shown in Fig. 2 wearing an another beam combination section of side setting, the anchoring section 20 formed in such as Fig. 1;
Step 3: the operation of repeat step one and step 2, sets no less than two anchorings to save 20;
Step 4: by steel tendon uniformly across the guide slot 51 in the outer rim of rubber ring 50 of elastic support wire device 5, then in steel The beam section ring colligation of tow both sides, the step is repeated, set and freely save 30 no less than three;
Step 5: multiple steel tendon colligations for freely saving the tail ends of free segment 3 that 30 connections are formed are formed into anchor head 1 into bar, The coating lubricating oil fat on the body of rod, and PVC sleeve pipes 8 are arranged on free segment 3, the both ends of PVC sleeve pipes 8 by galvanized wire colligation from By on the Shu Jie of the front end of section 3 and end, forming anchor pole;
Step 6: being put into complete anchor pole is made in the drilling 11 of the country rock set in advance, pass through Grouting Pipe slip casting anchor Gu being provided for fixing the anchor pier 9 and nut 10 of anchor head 1 outside drilling 11, anchor rod drawing anchoring is carried out, in the anchor pole course of work In, soft rock large deformation promotes anchor rod body to extrude rubber ring 50, increases rock-bolt length, discharges surrouding rock stress, completes weak surrounding rock Reinforcing task.

Claims (9)

1. a kind of steel tendon anchor pole for being used to reinforce weak surrounding rock, the anchor pole include anchor head and the body of rod, the front end of the body of rod, which is stretched into, encloses In the drilling of rock, the tail end of the body of rod is connected with anchor head, it is characterised in that:The described body of rod is made up of anchoring section and free segment, anchor Gu section includes the anchoring section that several are sequentially connected, each anchoring section includes rigid support wire device, Shu Jie and multi beam steel wire, multi beam After steel wire passes through rigid support wire device, the both ends of steel wire carry out colligation by beam section;Free segment include several be sequentially connected from By saving, each freely save includes elastic support wire device, Shu Jie and multi beam steel wire, after multi beam steel wire passes through elastic support wire device, steel wire Both ends pass through beam section carry out colligation;Wherein, the tail end for anchoring section is connected with the front end freely saved, the tail end and anchor head freely saved Connection.
A kind of 2. steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 1, it is characterised in that:Described anchoring Section at least two, the shared Shu Jie in connection end of two neighboring anchoring section, and the steel wire of each anchoring section is the entirety of continuity Structure.
A kind of 3. steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 1, it is characterised in that:Described freedom Section is at least three, and the two neighboring connection end freely saved shares a Shu Jie, and each steel wire freely saved is the entirety of continuity Structure.
A kind of 4. steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 1, it is characterised in that:The described body of rod Upper to be coated with lubricant grease, described free segment is arranged with PVC sleeve pipes, the front end of PVC sleeve pipes and the Shu Jiemi of anchoring section front end Envelope connection, the end of PVC sleeve pipes is slidably located on anchor head.
A kind of 5. steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 1, it is characterised in that:Described rigidity Support wire device includes some support wire rings being arranged concentrically, and each support wire ring is connected as one by floor arranged in a crossed manner, support wire ring Outer rim is evenly equipped with the through hole for wearing steel wire, and each through hole on same support wire ring is centrally located at that support wire ring is concentric sets with this On the circumference put.
A kind of 6. steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 5, it is characterised in that:Described support wire Ring is at least three, and the spaced radial between two neighboring support wire ring is identical.
A kind of 7. steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 1, it is characterised in that:Described elasticity Support wire device includes rubber ring, and the outer rim of rubber ring is evenly equipped with the guide slot that steel wire is set for card, and the center of rubber ring, which is provided with, stretches Chamber I.
A kind of 8. steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 7, it is characterised in that:Telescopic cavity I Outer rim is evenly equipped with multiple sawtooth, and the overall multiple telescopic cavities set in a ring are evenly equipped with the rubber ring outside telescopic cavity I II, the V-shaped structure on the rip cutting section of rubber ring of telescopic cavity II, and each telescopic cavity II does not connect mutually.
A kind of 9. steel tendon anchor pole for being used to reinforce weak surrounding rock as claimed in claim 1, it is characterised in that:Described Shu Jie For reinforcing bar ring colligation section.
CN201720546077.8U 2017-05-17 2017-05-17 A kind of steel tendon anchor pole for being used to reinforce weak surrounding rock Expired - Fee Related CN206707746U (en)

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Application Number Priority Date Filing Date Title
CN201720546077.8U CN206707746U (en) 2017-05-17 2017-05-17 A kind of steel tendon anchor pole for being used to reinforce weak surrounding rock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720546077.8U CN206707746U (en) 2017-05-17 2017-05-17 A kind of steel tendon anchor pole for being used to reinforce weak surrounding rock

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108915731A (en) * 2018-08-20 2018-11-30 中国矿业大学 It is a kind of for constructing the flexible steel tow and method for protecting support of back thick-layer rock beam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108915731A (en) * 2018-08-20 2018-11-30 中国矿业大学 It is a kind of for constructing the flexible steel tow and method for protecting support of back thick-layer rock beam

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20171205

Termination date: 20190517

CF01 Termination of patent right due to non-payment of annual fee