CN207297057U - It is a kind of have the function of from into scissors grouted anchor bar - Google Patents

It is a kind of have the function of from into scissors grouted anchor bar Download PDF

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Publication number
CN207297057U
CN207297057U CN201721407157.1U CN201721407157U CN207297057U CN 207297057 U CN207297057 U CN 207297057U CN 201721407157 U CN201721407157 U CN 201721407157U CN 207297057 U CN207297057 U CN 207297057U
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CN
China
Prior art keywords
rod
scissors
function
anchor
anchor bar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201721407157.1U
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Chinese (zh)
Inventor
王波
廖郁
张强
尹晓辉
韩登涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Road & Bridge Shengtong Building Engineering Co Ltd
Original Assignee
Sichuan Road & Bridge Shengtong Building Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Priority to CN201721407157.1U priority Critical patent/CN207297057U/en
Application granted granted Critical
Publication of CN207297057U publication Critical patent/CN207297057U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

It the utility model is related to tunnels and underground engineering anchoring device technical field, it is specific it is a kind of have the function of oneself into scissors grouted anchor bar, including the hollow body of rod, one end of the body of rod is connected with self-feeding bit, the other end is connected with grouting device, scissors expansion frame is disposed with close to the self-feeding bit, the anchor pole carries drill bit, have drilling rod and anchor pole function concurrently, scissors expansion frame is disposed with the same time, when armature boring in place after, scissors expansion frame struts or spreading, catch from the anchor hole hole wall bored, so as to be contacted with anchor hole hole, it is fixed, reach anchoring purpose, enough tensioning intensity is formed immediately, the anchor bolt construction is efficient, substantial amounts of construction cost can be saved.

Description

It is a kind of have the function of from into scissors grouted anchor bar
Technical field
The utility model is related to tunnels and underground engineering anchoring device technical field, particularly it is a kind of have the function of oneself into Scissors grouted anchor bar.
Background technology
It is more and more using the application of Surrounding Rock Supported by Bolt at home and abroad in underground engineering and tunnel, especially with spray When tunnels and underground engineering is built in anchor supporting, anchor pole is essential.It is used for the existing anchor pole type for reinforcing country rock on the market There are many kinds, from the point of view of common several anchor pole applicable cases, all there are its insufficient one side, common several anchor poles to exist such as Lower shortcoming:
1st, the process phase separation that drill process and installation anchor pole are anchored is, it is necessary to punched first, then by anchor Gu agent is sent into anchor hole, then by rockbolt installation in anchor hole, through after a period of time, reaching the anchoring strength of design, this anchor Gu the low construction efficiency of mode, and Anchor Agent can aggravating laboring environment;
2nd, total length binding type anchor pole(Including conventional cement mortar anchor pole, high-early (strength) cement grouting rock bolt, resin volume anchor pole, water Mud powder stick anchor pole etc.), its mortar is difficult to keep uniform, Man Kong in length range, so that design requirement cannot be sufficiently achieved;
3rd, opening folder mud or underground water development occasion, common anchor pole in hard rock, rock stratum joint fissure can not quickly form Preliminary bracing so that anchor rod anchored initial stage is unable to control surrouding rock deformation, in order to make anchor pole obtain higher anchoring strength, while Anchoring just can quickly obtain higher-strength initial stage, and Anchor Agent is added in anchoring, but Anchor Agent can not be formed immediately it is higher Anchoring strength, and Anchor Agent can aggravating laboring environment;
4th, existing anchor rod strength is relatively low, and anchor pole can increase with the deformation of country rock in high-ground stress tunnels and underground engineering It is pulled off quickly greatly;
5th, existing anchor metal processing is inconvenient and higher using the cost of anchor metal, and in the market mainly uses Screw-thread steel resin anchor and a small amount of fiber glass resin anchor pole, Gu power is not strong and easily snaps off, and install after cross one section Time could obtain certain solid power.
Utility model content
The goal of the invention of the utility model is:For the low construction efficiency present in anchor pole commonly used in the prior art, The problem of preliminary bracing can not be formed immediately, there is provided it is a kind of have the function of from into scissors grouted anchor bar, which carries drill bit, Have drilling rod and anchor pole function concurrently, at the same be disposed with scissors expansion frame, when armature boring in place after, scissors expansion frame strut(Rise Open), catch from the anchor hole hole wall bored, so as to be contacted with anchor hole hole, is fixed, reach anchoring purpose, form enough tensioning immediately Intensity, the anchor bolt construction is efficient, can save larger construction cost.
To achieve these goals, the technical solution adopted in the utility model is:
It is a kind of have the function of from into scissors grouted anchor bar, including the hollow body of rod, one end of the body of rod be connected with from into Formula drill bit, the other end are connected with grouting device, and scissors expansion frame is disposed with close to the self-feeding bit.
By arranging self-feeding bit in anchor pole end, so that the anchor pole while for anchoring, has drilling rod work(concurrently Can, so as to simplify working procedure, eliminate and move back the working procedure that drilling rod inserts anchor pole, significantly improve construction efficiency, and Since bar need not be moved back, so avoiding phenomenon of doing over again caused by the hole that collapses.
Body of rod one end connects self-feeding bit, and after drilling in place, adjacent scissors expansion frame struts, fast into scissors structure Speed(Immediately)Formed preliminary bracing, realize anchoring function, solve the problems, such as taking root for anchor pole, add speed of application, it can be achieved that The firm suspention of country rock top large-tonnage, and the mode of scissors structure struts that amplitude is big, and anchor force is stronger, can be as propping up for a long time Shield.
Also, after the anchor pole of this structure type, anchor pole is fixedly secured in anchor hole, Anchor Agent progress is not used Anchoring, has eliminated Anchor Agent, no longer produces dust and chemical contamination, substantially improves the work work ring of tunnels and underground engineering Border.
The body of rod is hollow structure, can realize the slip casting after high-strength prestress, and mortar is injected the body of rod by grouting device Interior, so that anchor pole can play its internal performance in length range, further increase anchors tensile strength.
As the preferred solution of the utility model, the body of rod is made of glass fiber reinforced polymer resin.
The body of rod uses the nonmetallic materials of this glass fiber reinforced polymer resin, it has higher tensile strength, The intensity of the body of rod is better than isodiametric screw-thread steel, and the body of rod of anchor pole is easily cut, and can play a protective role to coalcutter cutter head, Spark will not be produced during cutting, constructs to tunnel safety extremely advantageous, is particularly suitable for high methane concentration range.
It is more prone to using anchor pole, processing and manufacturing made of this material, price is also superior to traditional steel anchor rod, its weight is only For the 1/4 of equivalent specifications steel anchor rod, not only anchorage effect is strong for the anchor pole of high-strength light, but also conveniently constructs.
As the preferred solution of the utility model, the outer surface of the body of rod is equipped with screw thread, and the screw thread is with the body of rod Integral structure.
The screw thread of integral structure is equipped with body of rod outer surface, improves the anchor force between anchor pole and anchor hole, and then improve The tensile capacity of anchor pole.
Further, the screw thread is integrally formed with the body of rod.
As the preferred solution of the utility model, the body of rod is equipped with the exhausting-gas hole for being used for discharging body of rod internal gas.
Exhausting-gas hole is set on the body of rod so that in slip casting procedure, the gas in the body of rod is discharged, ensures that mortar exists Uniform, Man Kong is kept in body of rod whole length range, is prevented because slip casting inequality causes anchor pole to be concentrated in part or end stress.
Further, the quantity of the exhausting-gas hole is multiple that multiple exhausting-gas holes are axially evenly arranged along the body of rod.Ensure Mortar further improves the stress performance of the body of rod in body of rod inner homogeneous, Man Kong.
As the preferred solution of the utility model, the grouting device includes non-return valve, and it is supporting be provided with stop grouting plug, pad Plate and nut.
As the preferred solution of the utility model, the non-return valve is self-closing valve, including sleeve and installed in described Sleeve inner cavity one end it is valve-embedded, which is connected with compression spring.
One end of the compression spring and valve-embedded connection, the other end extend and fix to body of rod side.
The compression spring works according to pressure principle, when not being pressed into injecting paste material, the valve-embedded work in compression spring Sleeve bottom is pulled under, sleeve bottom will not leak out slurries at this time, when being pressed into injecting paste material, since grouting pressure is more than pressure Contracting spring force, valve-embedded opening, exterior slurries, which are pressed into inside the body of rod, enters stratum, takes the slip casting of this structure to fill Put, greatly save injecting paste material, while improve slip casting efficiency.
As the preferred solution of the utility model, the stop grouting plug and backing plate are an integral structure.
After stop grouting plug and backing plate are designed to an entirety, it is possible to reduce the quantity of parts, both simplifies the assembling of anchor pole, It is more convenient to use at the same time easy.
Further, the backing plate is arch backing plate, can apply prestressing force to stratum using arch backing plate.
As the preferred solution of the utility model, anchor pole include multiple connector sleeves connection hollow lever, it is multiple it is described in The empty body of rod connects from beginning to end successively, and middle chamber communicates, and the self-feeding bit and grouting device are respectively arranged two bodies of rod of head and the tail End.
Multiple hollow levers are set, and is realized and connected by connector sleeve, so as to increase the length of anchor pole, increases it and uses model Enclose.
Specifically, the quantity of the body of rod is arranged as required to.
As the preferred solution of the utility model, the section of the body of rod is circle.Use the body of rod of circular cross-section can be with Simplify the manufacturing process of the body of rod, save production cost.
As the preferred solution of the utility model, the material of the self-feeding bit, grouting device and connector sleeve is glass Glass fiber-reinforced polymeric resin.
This mode is taken, is conducive to further mitigate the weight of whole anchor pole, makes it more light easy to operate, is conveniently existed Small space is used.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1st, by setting self-feeding bit and scissors to expand frame on the body of rod, drilling rod and anchor pole is combined into one, is had certainly Into function, casing retaining wall is not required in decomposed rock, detritus layer, back filled region, sand, clay and boulder bed etc., can form anchor hole, and according to Reach initial supporting by scissors expansion frame, and ensure anchoring and slip casting effect by the anchor pole of hollow structure, it is easy to operate time saving, Extensive work amount is saved, reduces engineering cost;
2nd, scissors expansion frame is equipped with self-feeding bit one end in anchor pole, reversion anchor pole catches scissors expansion frame spreading Hole wall, prevents anchor pole slides from coming off, quickly forms tensile capacity at initial stage;
3rd, self-closing non-return valve is arranged in grouting device, is worked according to pressure principle, when not being pressed into injecting paste material, built-in valve Door is pulled to sleeve bottom under the action of spring is compressed, and sleeve bottom will not leak out slurries at this time, when being pressed into injecting paste material, by It is more than compression spring force, valve-embedded opening in grouting pressure, outer pulp hydraulic pressure enters enters stratum inside the body of rod, greatlys save Injecting paste material and improve slip casting efficiency;
4th, the anchor rod body of this programme is made of nonmetallic glass fiber reinforced polymer resin, tensile strength compared with Height, lever strength are better than isodiametric screw-thread steel, can make permanent supporting, and anchor pole can play its internal performance along total length or segmentation, And manufacture is easily worked, price is better than traditional steel anchor rod, and the anchor rod body of this material is easily cut, can be to coalcutter cutter head Play a protective role, when cutting will not produce spark, construct to tunnel safety extremely advantageous, be particularly suitable for high methane concentration area Domain, weight is only the 1/4 of equivalent specifications steel anchor rod, and the anchor pole has eliminated Anchor Agent, no dust and chemical contamination, changes significantly It has been apt to the work work situation of tunnels and underground engineering;
5th, the arranging exhaust air hole on the body of rod, can ensure that mortar keeps uniform, Man Kong in length range, prevent anchor pole from existing End stress collection.
Brief description of the drawings
Fig. 1 be the utility model have the function of oneself into scissors grouted anchor bar structure diagram.
Fig. 2 be Fig. 1 in have the function of oneself into scissors grouted anchor bar working status when structure diagram.
Fig. 3 is the structure diagram of grouting device in Fig. 1.
Marked in figure:1- self-feeding bits, 2- scissors expansion frame, the 3- bodies of rod, 4- exhausting-gas holes, 5- connector sleeves, 6- stop grouting plugs, 7- nuts, 8- self-closing check (non-return) valves, 81- compression springs, 82- is valve-embedded, 83- sleeves, 9- backing plates.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining this Utility model, is not used to limit the utility model.
Embodiment
As depicted in figs. 1 and 2, have the function of from into scissors grouted anchor bar, including the hollow body of rod 3, the body of rod 3 One end is connected with self-feeding bit 1, and the other end is connected with grouting device, and scissors expansion frame is disposed with close to the self-feeding bit 1 2, grouting device includes self-closing non-return valve 8, and supporting is provided with stop grouting plug 6, backing plate 9 and nut 7, the self-closing non-return valve 8 be include sleeve 83 and installed in described 83 internal cavity one end of sleeve valve-embedded 82, this is valve-embedded 82 close to the body of rod 3 Side and be connected with compression spring 81, compression spring 81 one end be connected with valve-embedded 82, the other end to 3 side of the body of rod extension It is and fixed.
The compression spring 81 works according to pressure principle, and when not being pressed into injecting paste material, valve-embedded 82 in compression spring The bottom of sleeve 83 is pulled under the action of 81,83 bottom of sleeve will not leak out slurries at this time, when being pressed into injecting paste material, due to note The elastic force that pressure is more than compression spring 81 is starched, valve-embedded 82 open, and exterior slurries, which are pressed into inside the body of rod, enters stratum, adopts The grouting device of this structure is taken, greatlys save injecting paste material, while improves slip casting efficiency.
By arranging self-feeding bit 1 in anchor pole end, so that the anchor pole while for anchoring, has drilling rod work(concurrently Can, so as to simplify working procedure, eliminate and move back the working procedure that drilling rod inserts anchor pole, significantly improve construction efficiency, and Since bar need not be moved back, so avoiding phenomenon of doing over again caused by the hole that collapses.
As shown in Fig. 2, when being anchored using anchor pole, 3 one end of body of rod connection self-feeding bit 1, after drilling in place, instead Turning anchor pole makes scissors expand 2 spreading of frame, into scissors structure, rapidly(Immediately)Preliminary bracing is formed, anchoring function is realized, solves Anchor pole takes root problem, adds speed of application, it can be achieved that the firmly suspention, and the side of scissors structure of country rock top large-tonnage Formula struts that amplitude is big, and anchor force is stronger, can be used as permanent supporting, reversion anchor pole make scissors expansion frame spreading catch hole wall so as to Larger initial withdrawal resistance is provided rapidly, can be widely applied in the poor engineering of geological conditions of weak soil or cranny development.
Also, after the anchor pole of this structure type, anchor pole is fixedly secured in anchor hole, Anchor Agent progress is not used Anchoring, has eliminated Anchor Agent, no longer produces dust and chemical contamination, substantially improves the work work ring of tunnels and underground engineering Border.
The attached drawing of the present embodiment expands after specifically presenting a kind of closure for the scissors after " V " shape, expansion into linear type Frame structure, another scissors expansion frame is the scissor construction for expanding into X-shaped, makes drill bit and expansion frame form to form scissors expansion brill Header structure, with the multiple location contacts of anchor hole inner wall, forms supporting, solves the problems, such as taking root for anchor pole, and connection is more firm.
The body of rod 3 is hollow structure, can realize the slip casting after high-strength prestress, and mortar is injected the body of rod by grouting device In 3 cavity, so that anchor pole can play its internal performance in length range, further increase anchors tensile strength.
As one of which preferred embodiment, the body of rod 3 is made of glass fiber reinforced polymer resin, and the body of rod 3 is adopted With the nonmetallic materials of this glass fiber reinforced polymer resin, it has higher tensile strength, and the intensity of the body of rod is better than Isodiametric screw-thread steel, and the body of rod of anchor pole is easily cut, and can be played a protective role to coalcutter cutter head, when cutting, will not produce Spark, constructs tunnel safety extremely advantageous, is particularly suitable for high methane concentration range.
And be more prone to using anchor pole made of this material, processing and manufacturing, for price also superior to traditional steel anchor rod, its is heavy Amount is only the 1/4 of equivalent specifications steel anchor rod, and not only anchorage effect is strong for the anchor pole of high-strength light, but also conveniently constructs.
As one of which embodiment, the outer surface of the body of rod 3 is equipped with screw thread, and the screw thread and the body of rod 3 are one Body formula structure, is equipped with the screw thread of integral structure in 3 outer surface of the body of rod, improves the anchor force between anchor pole and anchor hole, Jin Erti The tensile capacity of high anchor pole.
Further, the screw thread is integrally formed to obtain with the body of rod.
As one of which preferred embodiment, the body of rod 3 is equipped with the exhaust for being used for discharging 3 internal gas of the body of rod Hole 4.
Exhausting-gas hole 4 is set on the body of rod 3 so that during slip casting, the gas in the body of rod 3 is discharged, ensures that mortar exists Uniform, Man Kong is kept in body of rod whole length range, is prevented because slip casting inequality causes anchor pole to be concentrated in part or end stress.
Further, the quantity of the exhausting-gas hole 4 is multiple that multiple exhausting-gas holes 4 are evenly arranged along the body of rod 3 is axial, Ensure that mortar in body of rod inner homogeneous, Man Kong, further improves the stress performance of the body of rod.
As one of which preferred embodiment, the stop grouting plug 6 and backing plate 9 are an integral structure, by stop grouting plug 6 with After backing plate 9 is designed to an entirety, it is possible to reduce the quantity of parts, both simplifies the assembling of anchor pole, while uses more It is convenient easy.
Further, the backing plate 9 is arch backing plate, can apply prestressing force to stratum using arch backing plate.
As a kind of embodiment therein, anchor pole include multiple connector sleeves 5 connection hollow lever 3, it is multiple it is described in Head and the tail connect the empty body of rod 3 successively, and middle chamber communicates, and the self-feeding bit 1 and grouting device are respectively arranged two bars of head and the tail The end of body, sets multiple hollow levers, and is realized and connected by connector sleeve, so as to increase the length of anchor pole, increases its use Scope, in the present embodiment, sets two hollow levers, though it is foreseeable that when setting the hollow lever of 3 and its above, Connection mode is also identical, makes to be attached between each body of rod by the screw thread of body of rod outer surface.
Normally, the quantity of the body of rod is configured according to actual needs.
As a kind of embodiment therein, the section of the body of rod 3 is circle.Can letter using the body of rod of circular cross-section Change the manufacturing process of the body of rod, save production cost.
In actual use, the body of rod can be processed into different form of fracture as needed, such as square, round outside but spuare inside equal Can.
As one of which preferred embodiment, the material of the self-feeding bit 1, grouting device and connector sleeve 5 is equal For glass fiber reinforced polymer resin, this mode is taken, is conducive to further mitigate the weight of whole anchor pole, makes it more It is light easy to operate, it is convenient to be used in small space, while easy to the assembling of whole anchor pole.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model Protection domain within.

Claims (10)

1. it is a kind of have the function of from into scissors grouted anchor bar, it is characterised in that including the hollow body of rod, one end of the body of rod Self-feeding bit is connected with, the other end is connected with grouting device, and scissors expansion frame is disposed with close to the self-feeding bit.
2. it is according to claim 1 have the function of from into scissors grouted anchor bar, it is characterised in that the body of rod is by glass Fiber-reinforced polymeric resin is made.
3. it is according to claim 1 have the function of from into scissors grouted anchor bar, it is characterised in that the appearance of the body of rod Face is equipped with screw thread, and the screw thread is an integral structure with the body of rod.
4. it is according to claim 1 have the function of from into scissors grouted anchor bar, it is characterised in that the body of rod is equipped with For discharging the exhausting-gas hole of body of rod internal gas.
5. according to one of claim 1-4 have the function of from into scissors grouted anchor bar, it is characterised in that the slip casting Device includes non-return valve, and supporting is provided with stop grouting plug, backing plate and nut.
6. it is according to claim 5 have the function of from into scissors grouted anchor bar, it is characterised in that the non-return valve be from Enclosed valve, including sleeve and installed in the valve-embedded of described sleeve inner cavity one end, the valve-embedded close body of rod one Side is connected with compression spring.
7. it is according to claim 5 have the function of from into scissors grouted anchor bar, it is characterised in that the stop grouting plug and pad Plate is an integral structure.
8. according to one of claim 1-4 have the function of from into scissors grouted anchor bar, it is characterised in that anchor pole includes The hollow lever of multiple connector sleeve connections, multiple hollow levers connect from beginning to end successively, and middle chamber communicates, the self-advancing type Drill bit and grouting device are respectively arranged the end of two bodies of rod of head and the tail.
9. according to one of claim 1-4 have the function of from into scissors grouted anchor bar, it is characterised in that the body of rod Section for circle.
10. it is according to claim 8 have the function of from into scissors grouted anchor bar, it is characterised in that the self-advancing type bores The material of head, grouting device and connector sleeve is glass fiber reinforced polymer resin.
CN201721407157.1U 2017-10-27 2017-10-27 It is a kind of have the function of from into scissors grouted anchor bar Expired - Fee Related CN207297057U (en)

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Application Number Priority Date Filing Date Title
CN201721407157.1U CN207297057U (en) 2017-10-27 2017-10-27 It is a kind of have the function of from into scissors grouted anchor bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721407157.1U CN207297057U (en) 2017-10-27 2017-10-27 It is a kind of have the function of from into scissors grouted anchor bar

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Publication Number Publication Date
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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109209456A (en) * 2018-10-12 2019-01-15 河南理工大学 A kind of anticorrosion mechanical anchor anchor structure and application method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109209456A (en) * 2018-10-12 2019-01-15 河南理工大学 A kind of anticorrosion mechanical anchor anchor structure and application method
CN109209456B (en) * 2018-10-12 2020-06-05 河南理工大学 Application method of anti-corrosion mechanical anchoring anchor rod structure

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

Granted publication date: 20180501

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