CN209724382U - It is extending to repeat Grouting Pipe and the repeatable grouted anchor bar of double circles - Google Patents
It is extending to repeat Grouting Pipe and the repeatable grouted anchor bar of double circles Download PDFInfo
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- CN209724382U CN209724382U CN201920455207.6U CN201920455207U CN209724382U CN 209724382 U CN209724382 U CN 209724382U CN 201920455207 U CN201920455207 U CN 201920455207U CN 209724382 U CN209724382 U CN 209724382U
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Abstract
The utility model belongs to roadway surrounding rock reinforcement technique field.A kind of extending repetition Grouting Pipe and double circles repeat grouted anchor bar, and the extending Grouting Pipe that repeats includes several slip casting pipeline sections, docking unit and flexible boot, and adjacent two sections of slip casting pipeline sections are connected by telescopic docking unit；It includes extending repetition Grouting Pipe and the body of rod that double circles, which repeat grouted anchor bar, the extending Grouting Pipe that repeats protrudes into the first drilling, the body of rod protrudes into the second drilling, and the second drilling is Chong Die with the cross-section parts of the first drilling, and the axis of the first drilling is parallel with the axis of the second drilling.The utility model overcomes side sky and repeats grouted anchor bar to be unable to suitable for surrounding rock large deformation, the pull-out ultimate capacity of anchor pole limited and anchor rod body and country rock can only be sticked together by slurries, it can not be anchored using the widely applied resin explosive roll of coal mine, the unfavorable disadvantage of tunnel stability maintenance near rapid driving of tunnel and face.
Description
Technical field
The utility model belongs to geotechnical engineering reinforcement technique field, especially belongs to large deformation surrounding rock of chamber reinforcement technique neck
Domain, and in particular to a kind of extending repetition Grouting Pipe and double circles repeat grouted anchor bar.
Background technique
Based on permanent exploration and engineering practice, mine bolt (containing anchor cable, the same below) is with " drilling is small, the body of rod is small, powder stick
It is small " etc. " three is small " be characterized, absolute status is achieved in colliery tunnel support.China's coal-mine anchor pole annual consumption is more than at present
100000000.
Increasingly depleted with superficial part coal resources, coal mining has entered the deep stage.The exploitation in deep is faced with lane
The large deformation in road, it is more than can be found everywhere for 1m that tunnel, which adds up deflection,.The elongation of " three is small " anchor pole is limited, with surrouding rock deformation
The aggravation of destruction, anchor pole gradually fail.On the basis of " three is small " anchor pole, numerous scholars develop the very big constant-resistance of elongation or
Increase resistance anchor pole, but the broken situation of country rock cannot improve, because these novel anchor rods do not have grouting reinforcing function, country rock only can
It is more and more broken.In order to cope with it is this long lasting for deformation, and constantly improve country rock broken situation, China technical staff
It develops repeatable grouting strengthening method (ZL201310014588.1) and side sky repeats grouted anchor bar
(ZL201510674920.6) technology, and the application being succeeded.But there are three not perfect places for the technology: first is that Grouting Pipe
With the body of rod in same hole, the body of rod is only the tiny dispersed distribution of multiply, and the pull-out ultimate capacity of anchor pole is limited；Second is that can only pass through
Anchor rod body and country rock are sticked together by slurries, can not be anchored using the widely applied resin explosive roll of coal mine, in tunnel
Rapid construction and face tunnel stability maintenance nearby are unfavorable；Third is that being unable to suitable for surrounding rock large deformation.
Utility model content
The purpose of this utility model be it is in view of the above problems and insufficient, provide it is a kind of it is extending repeat Grouting Pipe and
Double circles repeat grouted anchor bar, overcome aforementioned side sky and repeat the shortcomings that grouted anchor bar is unable to suitable for surrounding rock large deformation, the body of rod
It is only the tiny dispersed distribution of multiply, the limited disadvantage of the pull-out ultimate capacity of anchor pole, and can only be by slurries by anchor rod body
It is sticked together, can not be anchored using the widely applied resin explosive roll of coal mine, in rapid driving of tunnel and area with country rock
The unfavorable disadvantage of face tunnel stability maintenance nearby.
In order to achieve the above objectives, it is adopted the technical scheme that:
A kind of extending repetition Grouting Pipe, comprising: multi-stage cementing pipeline section, the slip casting pipeline section are equipped with pulp aperture；It is right
Order member, connection are arranged between two neighboring slip casting pipeline section, and the adjacent two slip casting pipeline section passes through the docking unit phase
To flexible sealed connection；First flexible boot, for set in the outer wall of the slip casting pipeline section, first flexible boot and the pulp are small
Hole is corresponding；And second flexible boot, sheathed setting is on the outside of docking unit and on slip casting pipeline section, the first flexible boot and second soft
Property set between formed pulp seam.
Grouting Pipe is repeated according to described one kind is extending, the pulp aperture is at the axial direction interval one of slip casting pipeline section
Set a distance is uniformly distributed along perimeter.
Grouting Pipe is repeated according to described one kind is extending, the docking unit includes: several " п " shape iron hooks；Setting exists
The convex joint of upper section slip casting pipeline section lower end, the slip casting pipeline section outer wall close to convex joint are circumferentially evenly equipped with several and " п "
One matched dog hole of foot of shape iron hook；And the female joint of lower section slip casting pipeline section upper end is set, the female joint with
The convex joint oiling that matches is tightly sleeved, and the outer wall of the female joint is circumferentially evenly equipped with several with " п " the shape iron
The matched sliding hook groove of another foot of hook.
Grouting Pipe is repeated according to described one kind is extending, on the outer wall of the female joint, close to the note of convex joint
The groove of the intermediate coupler body of " п " shape iron hook described in accommodating is equipped on slurry pipeline section outer wall.
Grouting Pipe is repeated according to described one kind is extending, the docking unit includes: to be arranged under upper section slip casting pipeline section
The convex joint at end, the lower end of the convex joint are equipped with the first outside flange of a circle；And it is arranged in lower section Grouting Pipe
The female joint of Duan Shangduan, the upper end of the female joint are fixedly connected with the second inside flange of a circle, and described second is convex
It is mobile that edge can limit first flange in the axial direction.
Grouting Pipe is repeated according to described one kind is extending, only in slip casting aperture position set on the slip casting pipeline section outer wall of inner end
There is the first flexible boot.
Grouting Pipe is repeated according to described one kind is extending, first flexible boot and the second flexible boot are several layers rubber
Glue film.
Grouting Pipe, first flexible boot, the second flexible boot and the Grouting Pipe are repeated according to described one kind is extending
Outer wall between be coated with lubricant.
A kind of repeatable grouted anchor bar of double circles, comprising: extending repetition Grouting Pipe above-mentioned protrudes into the first drilling；
And
The body of rod protrudes into the second drilling；Wherein, the cross-section parts weight of second drilling and first drilling
It is folded, and the axis of first drilling is parallel with the axis of second drilling.
According to the repeatable grouted anchor bar of the double circles of one kind, the depth of second drilling is greater than first drilling
Depth is anchored between the lower part hole wall of second drilling and the anchoring section of the body of rod using resin explosive roll, and described second bores
Between the top hole wall in hole and the free segment of the body of rod, it is described first drilling hole wall and the repeatable Grouting Pipe between
It is filled using slurries.
By adopting the above technical scheme, acquired beneficial effect is:
A kind of extending repetition Grouting Pipe of the embodiment of the utility model and the extending grouted anchor bar of double circles, mainly will tool
The repeatable Grouting Pipe and the resin anchor body of rod for having elongation characteristics (including the common bolt body of rod and constant-resistance or increase resistance anchor rod body etc.
Anchor rod body with big elongation) it is placed in two drillings mutually cut, with the deformation of roadway surrounding rock, repeat note
The automatic elongation of slurry pipe, overcomes aforementioned side sky and repeats the shortcomings that grouted anchor bar is unable to suitable for surrounding rock large deformation；Become according to country rock
Shape destroys situation, is added in due course to the anchor pole of country rock, anchoring solidified body cracking or fragmentation using extending repetition Grouting Pipe
Gu repairing anchor pole, Surrounding Rock Strength is strengthened and keeps higher-strength, resists the effect of surrouding rock stress, steady in tunnel
It is fixed extremely beneficial.Moreover, because anchor rod body anchoring section or its inner end are an independent hole, it is identical as coal mine " three is small " anchor pole condition,
Even if Bolt, after first Laying injection pipe, the condition in body of rod hole is also essentially identical with " three is small " anchor pole condition, therefore
The first two disadvantage that aforementioned side sky repeats grouted anchor bar is overcome, i.e. the body of rod is only the tiny dispersed distribution of multiply, anchor pole
The limited disadvantage of pull-out ultimate capacity, and anchor rod body and country rock can only be sticked together by slurries, coal mine can not be applied
Widely applied resin explosive roll is anchored, the unfavorable disadvantage of tunnel stability maintenance near rapid driving of tunnel and face.Meanwhile
It is also equipped with all advantages that side sky repeats grouted anchor bar.Therefore, the effect of the repeatable grouted anchor bar of double circles of the utility model
It is beneficial more preferable.
In addition, a kind of another advantage of double repeatable grouted anchor bars of circle of the embodiment of the utility model is that double circles are repeatable
Grouted anchor bar is the extending assembly for repeating Grouting Pipe and anchor pole, effect when mutual protecting effect is discrete better than the two.Cause
For Research And Engineering, practice have shown that, there is the best region centered on Grouting Pipe, especially fissure rock mass in slip casting effect, can
Elongation, which repeats Grouting Pipe, to be repaired well for the cracking of its adjacent anchor pole.On the other hand, engineering practice also it has proven convenient that
After rock crusher, there are noncontinuity displacements along tunnel circumferential direction for rock block, and there is also rotation phenomenon, this kind of deformation is for slip casting
Pipe has destruction, however the Grouting Pipe of this technology is protected due to close to anchor pole by anchor pole well.Based on this, originally
A kind of synthesis effect of double repeatable grouted anchor bars of circle of the scheme of utility model is undoubtedly also superior to the superposition of the discrete effect of the two.
Detailed description of the invention
It, hereinafter will be to the utility model embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing simply introduced.Wherein, attached drawing is used only for showing some embodiments of the utility model, rather than will be originally practical new
The whole embodiments limited to this of type.
Fig. 1 shows the extending structural schematic diagram for repeating Grouting Pipe of one kind according to the utility model embodiment.
Fig. 2 shows the structural schematic diagram connected according to the convex joint of the utility model embodiment with female joint it
One.
Fig. 3 show the structural schematic diagram that is connected with female joint according to the convex joint of the utility model embodiment it
Two.
Fig. 4 show the structural schematic diagram that is connected with female joint according to the convex joint of the utility model embodiment it
Three.
Fig. 5 shows the structural schematic diagram of the repeatable grouted anchor bar of the double circles of one kind according to the utility model embodiment.
Fig. 6 shows the A-A schematic cross-sectional view of Fig. 5.
Serial number in figure:
1 is the second flexible boot, and 2 be " п " shape iron hook, and 3 be convex joint, and 4 be female joint, and 5 be pulp aperture, and 6 be note
Pipeline section is starched, 7 be sliding hook groove, and 8 be groove, and 9 be the second flange, and 10 be the first flange, and 11 be backing plate, and 12 be stop grouting plug, and 13 are
Lockset, 14 be the body of rod, and 15 be grout curing body, and 16 be resin solidification body, and 17 be the first flexible boot.
Specific embodiment
In order to enable the purpose of the technical solution of the utility model, technical characteristic and technical effect are clearer, hereinafter
The attached drawing of the utility model specific embodiment will be combined, the exemplary scenario of the utility model embodiment is carried out clearly and completely
Description.Obviously, described embodiment is a part of the embodiment of the utility model, instead of all the embodiments.Based on institute
The embodiments of the present invention of description, those of ordinary skill in the art institute obtained under the premise of being not necessarily to creative work
There are other embodiments, fall within the protection scope of the utility model.
Referring to Fig. 1-Fig. 6, present embodiment discloses a kind of extending repetition Grouting Pipes, including multi-stage cementing pipeline section 6, docking
Unit, the first flexible boot 17 and the second flexible boot 1, adjacent two sections of slip casting pipeline sections 6 are tightly connected by docking unit relative telescopic；
Outer wall of first 17 sets of the flexible boot in slip casting pipeline section, the first flexible boot 17 are corresponding with pulp aperture；Second flexible boot, 1 sheathed setting
On the outside of docking unit and on slip casting pipeline section 6, pulp seam is formed between the first flexible boot 17 and the second flexible boot 1, docks unit
Number need to according to rock-bolt length and may deflection be determined, it is spaced apart in the axial direction in Grouting Pipe (usually
2-4 pulp aperture 5 is uniformly distributed along perimeter for 0.5 ~ 1m)；The first flexible boot 17, which is arranged, can make pulp aperture 5 can only be from
Slip casting pipeline section is in the milk from inside to outside, and slurry cannot be returned out of slip casting pipeline section extroversion injected hole, and the second flexible boot 1, which is in addition arranged, to be made
Slip casting pipeline section outer pipe wall does not contact directly with grout curing body 15, is fixed slip casting pipeline section by grout curing body 15, makes
There is certain relative activity between slip casting pipeline section and the second flexible boot 1.
Optionally, in the embodiments of the present invention, a kind of possible structure of unit is docked are as follows: docking unit includes
Several " п " shape iron hooks 2, the convex joint 3 that 6 lower end of upper section slip casting pipeline section is set and 6 upper end of lower section slip casting pipeline section is set
Female joint 4；The oiling that matches of female joint 4 and convex joint 3 is tightly sleeved, close to 6 outer wall of slip casting pipeline section of convex joint 3
Circumferentially it is evenly equipped with several and " п " shape iron hook 2 matched dog hole of foot；The outer wall of female joint 4 be circumferentially evenly equipped with it is several with
The matched sliding hook groove 7 of another foot of " п " shape iron hook 2, " п " shape iron hook 2 slide in the axial direction in sliding hook groove 7.
In each docking unit, " п " shape iron hook 2 according to Grouting Pipe thickness can along week setting 2 ~ 3, correspondingly dog hole,
Sliding hook groove 7 also matches setting.
Further, in the embodiments of the present invention, on the outer wall of female joint 4, close to the Grouting Pipe of convex joint 3
The groove 8 of the intermediate coupler body of receiving " п " shape iron hook 2 is equipped on 6 outer walls of section, so that two feet of " п " shape iron hook 2 are in insertion hook
The body of rod 14 also can be substantially parallel with the outer wall of slip casting pipeline section 6 behind hole and sliding hook groove 7.
After " п " shape iron hook 2 enters dog hole, sliding hook groove 7, flushed with 6 outer surface of slip casting pipeline section, multilayer rubber film is to its shape
At certain constraint.When surrouding rock deformation makes extending repetition Grouting Pipe generate stretching, " п " shape iron hook 2 can be in sliding hook groove 7
Sliding, when sliding into sliding 7 other end of hook groove, being somebody's turn to do " п " shape iron hook 2 cannot slide again.
Optionally, in the embodiments of the present invention, the alternatively possible structure of unit is docked are as follows: docking unit packet
Include the convex joint 3 that upper section slip casting pipeline section lower end is set and the female joint 4 that lower section slip casting pipeline section upper end is set, convex
The lower end of connector 3 is equipped with the first outside flange 10 of a circle, and the upper end of female joint 4 is fixedly connected with inside the of a circle
Two flanges 9, can be using non-removable connections such as welding, rivetings between the upper end of female joint 4 and the second flange 9, can also
To use fastener to be detachably connected, the second flange 9 can limit the first flange 10 in the axial direction and move in a certain range,
Allow to have certain flexible amplitude between upper section slip casting pipeline section and lower section slip casting pipeline section.
In the embodiments of the present invention, only at slip casting aperture 5 on one or more snippets 6 outer wall of slip casting pipeline section of inner end
It sets and is cased with the first flexible boot 17, side pulp of the slurries in pulp aperture 5 from the first flexible boot 17, extending repetition Grouting Pipe
The slip casting pipeline section 6 positioned at injected hole inner end need to be fixedly installed, do not need to stretch, do not need to produce between the first flexible boot 17
Raw opposite sliding, so can directly contact with grout curing body 15, can save 17 dosage of the first flexible boot in this way.
First flexible boot 17 and the second flexible boot 1 are several layers rubber film, it is preferred that the first flexible boot 17 and second
Flexible boot 1 is layer 2-3 rubber film, during extending repetition Grouting Pipe insertion drilling, is damaged in rubber topping film
After wound, internal layer rubber film can also work.
In the embodiments of the present invention, it is coated between the first flexible boot 17, the second flexible boot 1 and the outer wall of Grouting Pipe
Lubricant, can make can be more easily relatively sliding between the extending each slip casting pipeline section 6 and the second flexible boot 1 for repeating Grouting Pipe
It is dynamic, it is easier 5 pulp of pulp aperture.
The present embodiment also discloses a kind of repeatable grouted anchor bar of double circles, including aforementioned extending repetition Grouting Pipe and bar
Body 14, the extending Grouting Pipe that repeats protrude into the first drilling, and the body of rod 14 protrudes into the second drilling, wherein the second drilling and first
The cross-section parts of drilling are overlapped, and the axis of the first drilling is parallel with the axis of the second drilling, i.e., extending to repeat Grouting Pipe
Be in one of drilling of the double circular hole of intersection respectively with the body of rod 14, it is extending repeat Grouting Pipe slip casting when, can will starch
Liquid injects around the body of rod 14, anchors to the body of rod 14, after the completion of repeatable Grouting Pipe slip casting, to be rinsed with water in time
Inside Grouting Pipe, in order to avoid blocking Grouting Pipe.
Optionally, the body of rod 14 in the present embodiment select the resin anchor body of rod (including the common bolt body of rod and constant-resistance or
Increase anchor rod body of the resistance anchor rod body etc. with big elongation), resin anchor is by the elongated body of rod (including the steel strand wires body of rod, steel
The muscle body of rod, constant-resistance anchor rod body increase resistance anchor rod body) and Anchor Agent solidified body (resin solidification body and grout curing body) composition.
For end anchor and anchor is lengthened, resin anchor divides free segment and anchoring section, and the anchoring section body of rod is glued the body of rod and country rock by resin explosive roll
Knot securely, the body of rod of free segment because plus PVC casing without with country rock and anchor solidified body adhesion, if the body of rod of free segment is not added
PVC casing, then when carrying out slip casting by repeatable Grouting Pipe, slurries will fill the gap outside the free section body of rod,
The tension pull out force of anchor pole can be improved to a certain extent；For whole-length cohesive anchor bolt, preferably pass through note within the scope of the first drilling depth
Slurry anchoring can also use resin anchoring with overall length.
In principle, extending repetition Grouting Pipe and the free segment of the body of rod 14 are grown together, but for whole-length cohesive anchor bolt or anchoring
The partially long lengthening anchor anchor pole of section, the extending slip casting length of tube that repeats is preferably the 1/2 ~ 1/4 of 14 overall length of the body of rod.Meanwhile slip casting pipe range
Degree is preferably more than the thickness of the possible fracture area of country rock.
It is additionally provided with stop grouting plug 12 and backing plate 11 in the extending upper end for repeating Grouting Pipe and the body of rod 14, on the body of rod 14
11 top of backing plate is additionally provided with lockset 13, and stop grouting plug 12, backing plate 11 and lockset 13 are common components, and this will not be repeated here.
Further, in the embodiments of the present invention, the depth of the second drilling is greater than the depth of the first drilling, and second bores
It is anchored between the lower part hole wall in hole and the anchoring section of the body of rod 14 using resin explosive roll, forms resin solidification body 16, the second drilling
Between 14 free segment of top hole wall and the body of rod, slurries filling or anchor are all made of between the hole wall and repeatable Grouting Pipe of the first drilling
Gu forming grout curing body 15.
The field installation steps that double circles repeat grouted anchor bar are as follows:
1. being required according to roadway engineering, is calculated by design and determine rock-bolt length；
2. possible according to anchor pole type (end anchor lengthens anchor, overall length anchor), rock-bolt length, 14 elongation of the body of rod, country rock
Maximum deformation quantity, the number for determining the extending length for repeating Grouting Pipe, docking unit；
3. processing assembling is extending to repeat Grouting Pipe, " п " shape iron hook shape iron hook 2 is processed, and in multistage as shown in Figure 1
Dog hole is processed at the convex joint position of slip casting pipeline section, sliding hook groove is processed in female joint position, by multi-stage cementing pipeline section 6
Oiling is tightly sleeved, and pipe outer wall smears lubricant, puts on the first flexible boot and the second flexible boot, and the first flexible boot and second soft
Property set between stay gap less as far as possible, in order to avoid it is mobile to influence the elongation that generates with surrouding rock deformation of later period Grouting Pipe；
4. drilling drills out two drillings mutually cut, i.e., the first drilling and the second drilling, reaches defined position (phase
When in Grouting Pipe total length) when, replacement single hole drill bit continues to creep on the second bore position, the depth until reaching anchor pole requirement
Degree；
5. Laying injection pipe in hole is inserted into assembled extending repetition Grouting Pipe, if Grouting Pipe overall length is too long
(referring to can not once mounting overall length situation since space limits), can be optionally combined and be segmented and carry out second group at aperture
Dress；
It, will with the body of rod 14 or simple dedicated transport bar 6. the installation of anchor rod body is put into resin explosive roll in the second drilling
It, which pushes up (send) one by one, enters bottom hole, and during on top, (sending) enters, the extending Grouting Pipe position that repeats obtains automatic adjustment, uses anchor
Bar drill machine connecting-rod body 14, starts drilling machine, and 14 spinning of the body of rod enters and resin explosive roll Anchor Agent is sufficiently stirred；
7. placing stop grouting plug 12, roof bolt plate 11 and lockset 13, tensioning fixation is carried out to the body of rod 14；
8. carrying out slip casting by repeatable Grouting Pipe, make the gap outside slurries filling and injecting slurry pipe and the body of rod 14.If slurries
Anchorage effect has been needed, then has needed to carry out slip casing by pressure.After the completion of slip casting, rinse inside Grouting Pipe.
9. as needed, especially failure and deformation of surrounding rocks up to a certain degree or anchor axial force decline it is obvious when, in due course carry out
Slip casting prevents Surrounding Rock Strength or integrality from further deteriorating, and repairs the repeatable grouted anchor bar of double circles, improves anchor pole bearing capacity,
Due to it is extending repeat Grouting Pipe have extensibility, can be repeated several times slip casting, this step can be repeated several times development.
Unless otherwise defined, the technical term or scientific term used herein is should be in the utility model fields
The ordinary meaning that personage with general technical ability is understood.Make in the utility model patent application specification and claims
" one ", " two " and similar word are not offered as any sequence, quantity or importance, and are used only to distinguish different
Component part.Equally, the similar word such as "one" or " one " also not necessarily indicates quantity limitation." comprising " or "comprising"
Mean to occur the element or object before the word etc. similar word and cover to appear in the element or object of the word presented hereinafter
And its it is equivalent, and it is not excluded for other elements or object."upper", "lower", "left", "right", " inner ", "outside" etc. are only used for indicating phase
To positional relationship, after the absolute position for being described object changes, then the relative positional relationship may also correspondingly change.
It is described in detail the exemplary embodiment of the utility model above in reference to preferred embodiment, however this field
Technical staff can make above-mentioned specific embodiment more it will be appreciated that under the premise of without departing substantially from the utility model theory
Kind of modification and remodeling, and can to the utility model proposes each technical characteristic, structure carry out multiple combinations, and without departing from this reality
With novel protection scope, the protection scope of the utility model is determined by the attached claims.
Claims (10)
1. a kind of extending repetition Grouting Pipe characterized by comprising
Multi-stage cementing pipeline section, the slip casting pipeline section are equipped with pulp aperture；
Unit is docked, connection is arranged between adjacent two sections of slip casting pipeline sections, and the adjacent two slip casting pipeline section passes through the docking
Unit relative telescopic is tightly connected；
First flexible boot, for set in the outer wall of the slip casting pipeline section, first flexible boot is corresponding with the pulp aperture；And
Second flexible boot, sheathed setting is on the outside of docking unit and on slip casting pipeline section, the first flexible boot and the second flexible boot it
Between formed pulp seam.
2. one kind according to claim 1 is extending to repeat Grouting Pipe, which is characterized in that the pulp aperture is in Grouting Pipe
The axial direction of section is spaced apart to be uniformly distributed along perimeter.
3. one kind according to claim 1 is extending to repeat Grouting Pipe, which is characterized in that the docking unit includes:
Several " п " shape iron hooks；
The convex joint of upper section slip casting pipeline section lower end is set, close to convex joint slip casting pipeline section outer wall be circumferentially evenly equipped with it is several
With a matched dog hole of foot of " п " the shape iron hook；And
The female joint of lower section slip casting pipeline section upper end is set, and the female joint and the convex joint match socket, institute
The outer wall for stating female joint is circumferentially evenly equipped with several and " п " the shape iron hook matched sliding hook groove of another foot.
4. one kind according to claim 3 is extending to repeat Grouting Pipe, which is characterized in that the outer wall of the female joint
It is upper, close to be equipped on the slip casting pipeline section outer wall of convex joint accommodate described in " п " shape iron hook intermediate coupler body groove.
5. one kind according to claim 1 is extending to repeat Grouting Pipe, which is characterized in that the docking unit includes:
The convex joint of upper section slip casting pipeline section lower end is set, and the lower end of the convex joint is equipped with outside first convex of a circle
Edge；And
The female joint of lower section slip casting pipeline section upper end is set, and it is inside that the upper end of the female joint is fixedly connected with a circle
Second flange, it is mobile that second flange can limit first flange in the axial direction.
6. one kind according to claim 1 is extending to repeat Grouting Pipe, which is characterized in that on the slip casting pipeline section outer wall of inner end
Only the first flexible boot is cased in slip casting aperture position.
7. one kind according to claim 1 is extending to repeat Grouting Pipe, which is characterized in that first flexible boot and second
Flexible boot is several layers rubber film.
8. one kind according to claim 1 is extending to repeat Grouting Pipe, which is characterized in that first flexible boot, second
Lubricant is coated between flexible boot and the outer wall of the Grouting Pipe.
9. a kind of repeatable grouted anchor bar of double circles characterized by comprising
It is extending described in claim 1-8 any bar to repeat Grouting Pipe, it protrudes into the first drilling；And
The body of rod protrudes into the second drilling；
Wherein, second drilling is Chong Die with the cross-section parts of first drilling, and the axis of first drilling and institute
The axis for stating the second drilling is parallel.
10. a kind of double repeatable grouted anchor bars of circle according to claim 9, which is characterized in that the depth of second drilling
Degree is greater than the depth of first drilling, uses resin between the lower part hole wall of second drilling and the anchoring section of the body of rod
Powder stick anchoring, it is described second drilling top hole wall and the body of rod free segment between, it is described first drilling hole wall and institute
It states and is all made of slurries filling between repeatable Grouting Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920455207.6U CN209724382U (en) | 2019-04-04 | 2019-04-04 | It is extending to repeat Grouting Pipe and the repeatable grouted anchor bar of double circles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920455207.6U CN209724382U (en) | 2019-04-04 | 2019-04-04 | It is extending to repeat Grouting Pipe and the repeatable grouted anchor bar of double circles |
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| CN209724382U true CN209724382U (en) | 2019-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882225A (en) * | 2019-04-04 | 2019-06-14 | 河南理工大学 | It is extending to repeat Grouting Pipe and the repeatable grouted anchor bar of double circles |
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2019
- 2019-04-04 CN CN201920455207.6U patent/CN209724382U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882225A (en) * | 2019-04-04 | 2019-06-14 | 河南理工大学 | It is extending to repeat Grouting Pipe and the repeatable grouted anchor bar of double circles |
| CN109882225B (en) * | 2019-04-04 | 2024-01-23 | 河南理工大学 | Extendable repeated grouting pipe and double-circle repeated grouting anchor rod |
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