CN205975517U - Multilayer reaming auto -lock prestressed anchorage pole - Google Patents
Multilayer reaming auto -lock prestressed anchorage pole Download PDFInfo
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- CN205975517U CN205975517U CN201621005426.7U CN201621005426U CN205975517U CN 205975517 U CN205975517 U CN 205975517U CN 201621005426 U CN201621005426 U CN 201621005426U CN 205975517 U CN205975517 U CN 205975517U
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- reaming
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Abstract
The utility model provides a multilayer reaming auto -lock prestressed anchorage pole, including the stock body, grout pipe (7), to zhonghuan (8), the stock body comprises according to equilateral hexagon six roots of sensation stock monomer (1), stock monomer (1) is constituteed by the stock body of rod (2) with long anchor rod (3), two stock monomer (1) at diagonal angle for a set of respectively through nut (5) with one from zhang zisuo anchor head (6) thus be connected the formation three -layer from zhangzisuo anchor head (6), the three -layer is from equidistant the arranging of zhang zisuo anchor head (6), grout pipe (7) extend to the stock body of rod (2) front end from adding long anchor rod (3) rear end. Share anchor power from zhang zisuo anchor head (6), the anchored reliability is high, has higher use value.
Description
Technical field
This utility model is related to a kind of anchor pole, more specifically to a kind of multilamellar reaming self-locking prestressed anchor, belongs to
Rearmounted large-tonnage anchorage technology art field.
Background technology
There is horizontal interlayer seam in some dam gate piers, horizontal interlayer seam one side weakens rigidity and the globality of gate pier,
Working condition is more unfavorable；On the other hand, in overfall dam part lock hole flood discharge, easily make the interlayer seam local tool originally deposited
Open trend, by the durability of impact gate pier under the earial drainage exciting dynamic loading of lock hole.For this reason, initial stage gate pier need to be applied vertical
Compressive pre-stress, by prestressed reinforcement, improves globality and the durability of gate pier.
Because dam is as important hydraulic engineering, it is desirable to have rational safety stock, it requires that dam consolidation is applied
Prestressing tonnage is higher, limit anchoring force is larger；Therefore it is required that prestressed anchor drilling depth is big, required precision is high, and pass
The prestressed anchor drilling depth of system less, precision not high it is difficult to meet engineering demand.
Content of the invention
The purpose of this utility model be for existing prestressed anchor drilling depth less, precision high the problems such as,
A kind of multilamellar reaming self-locking prestressed anchor is provided.
For achieving the above object, institute using technical solution is this utility model：A kind of multilamellar reaming self-locking prestressing force
Anchor pole, including anchor bar body, grout pipe, to medium ring, described anchor bar body is made up of by equilateral hexagon six roots of sensation anchor pole monomer, described
Anchor pole monomer by anchor rod body and lengthen anchor pole and form, described anchor rod body rear end and lengthening between anchor pole front end by even
Connect device to be connected, described anchor rod body front end is closing taper, two diagonal anchor pole monomers are one group and pass through nut respectively
It is connected from Zhang Zisuo anchor head with one thus forming three layers from Zhang Zisuo anchor head, described three layers equidistant from Zhang Zisuo anchor head
Arrangement, described grout pipe extends to anchor rod body front end from lengthening anchor pole rear end.
Described three layers are distributed spacing between Zhang Zisuo anchor head up and down and are spaced apart 3m.
Described anchor pole monomer is made by fining twisted steel.
Compared with prior art, the beneficial effects of the utility model are：
In this utility model, multilamellar reaming auto-lock anchorage technology is to provide anchoring using mechanical snap and cohesive force, and can be by
How to share anchor force from Zhang Zisuo anchor head, the reliability of anchoring is high, has higher use value；And with monolayer chambering self-locking anchor phase
, floor space bigger than low cost, anchor force is little.
Brief description
Fig. 1 is this utility model structural representation.
Fig. 2 is the plan view in concrete backfill hole in this utility model.
Fig. 3 is the A-A profile of Fig. 1.
Fig. 4 is the B-B profile of Fig. 1.
Fig. 5 is the C-C profile of Fig. 1.
Fig. 6 is the D-D profile of Fig. 1.
Fig. 7 is the 1-1 profile of Fig. 3.
Fig. 8 is the 2-2 profile of Fig. 7.
Fig. 9 is charger schematic diagram.
In figure, anchor pole monomer 1, anchor rod body 2, lengthen anchor pole 3, adapter 4, nut 5, from Zhang Zisuo anchor head 6, grout pipe
7, to medium ring 8, counter-force anchor plate 9, anchor plate 10, billet 11, jack 12, steel thimble 13, exhaustor 14, steel plate seat 15,
Boring 16, anchor head seat 17.
Specific embodiment
Below in conjunction with brief description and specific embodiment, this utility model is described in further detail.
Referring to Fig. 1 to Fig. 9, a kind of multilamellar reaming self-locking prestressed anchor, can it is adaptable to apply prestressing force to concrete dam
To apply in concrete dam engineering；It include anchor bar body, grout pipe 7, to medium ring 8.Described anchor bar body is by six roots of sensation anchor pole
Monomer 1 is pressed equilateral hexagon and is constituted, and described anchor pole monomer 1 is made up of anchor rod body 2 and lengthening anchor pole 3；Described anchor pole bar
It is connected by adapter 4 between body 2 rear end and lengthening anchor pole 3 front end, described anchor rod body 2 front end is closing taper.Right
Two anchor pole monomers 1 at angle are connected from Zhang Zisuo anchor head 6 with one by nut 5 respectively for one group and certainly open thus forming three layers
Self-locking anchor head 6；Hence in so that this anchor pole is divided into three layers according to three different depths from Zhang Zisuo anchor head 6, every layer of anchor pole includes this
Two anchor pole monomer of layer 1 and this layer corresponding one are from Zhang Zisuo anchor head 6.For enabling three layers to share anchoring equally from Zhang Zisuo anchor head 6
Power, described three layers are equally spaced from Zhang Zisuo anchor head 6.Described grout pipe 7 extends to anchor pole bar from lengthening anchor pole 3 rear end
Body 2 front end, through to medium ring 8 with from Zhang Zisuo anchor head 6.
Referring to Fig. 1, described three layers are distributed spacing between Zhang Zisuo anchor head 6 up and down and are spaced apart 3m.
Referring to Fig. 1, described anchor pole monomer 1 is made by fining twisted steel.
Referring to Fig. 1 to Fig. 9, the installation method of this kind of multilamellar reaming self-locking prestressed anchor, comprise the following steps：
Step one, is needing to apply prestressed structure drill straight hole using engineering investigation rig, this needs to apply prestressing force knot
Structure elongated for dam；With laser ranging inclinometer to 16 depth and perpendicularity is checked it is desirable to pore-forming of holing after pore-forming
Boring 16 perpendicularity deviation be less than 5 ‰.And confirm that the concrete core sample of bottom hole 8m depth scope is closely knit by coring during pore-forming, if
Leakiness then needs to deepen boring 16 depth it is ensured that the quality of anchoring section concrete meets design requirement；It is basis herein《Concrete
Structural Engineering job specfication》With regard to closely knit regulation, (GB 50666-2011) judges that whether no concrete core sample is closely knit, if sentencing
Break and then need to deepen for leakiness.
Step 2, after boring 16 construction finishes, is expanded to the bottom hole of boring 16 in step one with professional reaming bit
Hole, reaming hole shape is inverted cone surface, makes reaming bit once expand one layer of reaming, according to bottom reaming, intermediate layer reaming, the superiors
Reaming order carries out reaming in three times.
Step 3, after reaming finishes, carries out borehole cleaning using special small-bore deep hole pressure hole cleaner.
Step 4, assembles this anchor pole Anchoring part, by the six roots of sensation anchor pole monomer 1 of hexagonal arrangement with diagonal two for a component
Become three groups, be connected by nut 5 from Zhang Zisuo anchor head 6 with three layers respectively；Anchor pole Anchoring part herein refers to this anchor pole and carries
For anchor force part, i.e. anchor pole and grouting material contact portion.To be filled with note seam glue between nut 5 and adapter 4 and anchor pole monomer 1
Closely knit, to prevent from loosening during this rockbolt installation.And make this anchor pole exposed junction length be easily installed tensioning equipment more than 2m, herein
Anchor pole exposed junction refers to this anchor pole away from bottom hole one end, the part that is, this anchor pole bassets.Because certainly opening from break adrift when installing
6 oblique extensions snap in reaming, then select voussoir fixation from Zhang Zisuo anchor head 6；Restrict when therefore installing from Zhang Zisuo anchor head 6
Voussoir is bundled by rope or iron wire, in case disturbance causes the damage from Zhang Zisuo anchor head 6.Each layer installs from Zhang Zisuo anchor head 6
Afterwards, grout pipe 7 is installed；For ensureing bottom from Zhang Zisuo anchor head 6 grouting density, grout pipe 7 should pass through bottom certainly to open from break adrift
6 length 15～20mm；Bottom herein from Zhang Zisuo anchor head 6 refer to three layers from Zhang Zisuo anchor head 6 bottom next from
Zhang Zisuo anchor head 6, as from nearest one of bottom hole from Zhang Zisuo anchor head 6.And penetrate the anchor plate 10 of tensioning in advance, to make
It is used in position after anchor pole monomer 1 perforation.
Step 5, installs billet 11 in orifice position, should make center of circular hole and boring 16 centers one in billet 11
Cause.Lifted by crane using crane and this anchor pole is installed, lifted this anchor pole in the hole being drilled in step one with crane；Lifting lifting
When effectively should be protected to from Zhang Zisuo anchor head 6 position.When this anchor pole is above aperture, by arrangement for crane machinery relay
And be aided with and manually this anchor pole slowly put in the hole, when transferring this anchor pole, treat each layer from the voussoir local of Zhang Zisuo anchor head 6 top
Rope or the iron wire of binding can be untied after entering hole.After this anchor pole falls to bottom hole position, lift this anchor pole to gripping orientation,
To confirm from Zhang Zisuo anchor head 6, to reaming position, to tighten anchor plate 10 lock nut 5, in position.This anchor pole enters Kong Gu
After fixed, should by the pretensioned method of jack 12 adjust each layer from the spacing at Zhang Zisuo anchor head 6 and dam body reaming position so that
Voussoir is fitted completely with reaming position top edge.
Step 6, for giving full play to reaming from the anchoring effect of Zhang Zisuo anchor head 6, takes monolayer from 6 innings of Zhang Zisuo anchor head
Scope be first in the milk mode of post-stretching in portion's carries out prestress application.
Specifically, described step 3 includes below step：Step one, first, water pipe is stretched into bottom hole, by big
Flow current are rinsed from the hole is to hole, until backwater peace and quiet continuity 5～10min.Step 2 is after hole flushing finishes then right
Boring carries out complete opening and draws water and dry up using high-pressure blast blowing off, and carries out aperture protection, in order to avoid rainwater and debris enter.
Specifically, when pre- tensioning being layered using jack 12 in described step 5, exert oneself when tensioning and reach 8t and continue 1
During minute, can confirm that and fit completely with reaming wall from Zhang Zisuo anchor head 6, now unload oil pressure, lock corresponding nut 5, respectively
Complete each layer from the local modulation of Zhang Zisuo anchor head 6 and reaming wall.
Specifically, described step 6 specifically includes below step：Step one, first to bottom from Zhang Zisuo anchor head 6 local
Grouting, is in the milk to bottom from Zhang Zisuo anchor head 6 top 1m altitude range from bottom, treats grouting material intensity close to dam body consolidation coagulation
After native intensity, carry out this layer from the tensioning of Zhang Zisuo anchor head 6, make the effective prestress after tensioning should be not less than 700kN；Step
2nd, is in the milk to intermediate layer from Zhang Zisuo anchor head 6 top 1m altitude range from Zhang Zisuo anchor head 6 local in intermediate layer, treats grouting material
Intensity, after dam body consolidation concrete strength, carries out this layer from the tensioning of Zhang Zisuo anchor head 6, makes the effective prestress after tensioning
700kN should be not less than；Step 3, top layer is in the milk to top layer from Zhang Zisuo anchor head 6 top 1m height from Zhang Zisuo anchor head 6 local
Scope, after grouting material intensity is close to dam body consolidation concrete strength, carries out this layer from the tensioning of Zhang Zisuo anchor head 6, makes tensioning
Effective prestress afterwards should be not less than 700kN.Meanwhile, for accelerating construction progress, grouting material typically will not be waited to be fully cured again
Tensioning, reaches after grouting material intensity and can proceed by each layer after tensioning requirement from the tensioning of Zhang Zisuo anchor head 6.Generally scene
A number of die trial can be made during grouting, for ensureing the curing temperature concordance of die trial intensity and in the hole grouting body intensity, fill
Before slurry, temperature in borehole is tested, test finds, temperature in borehole is basically identical with outdoor temperature；Therefore, die trial is carried out
Normal maintenance under outdoor temperature, presses different number of days simultaneously（2～4 days）Carry out the test of intensity of test block.And monolayer is opened certainly certainly
Before break adrift head 6 tensioning, every layer of theoretic elongation from Zhang Zisuo anchor head 6 and two anchor pole monomer 1 of this layer should be calculated；Remember during tensioning
Record deflection when every one-level load stretch value and voltage stabilizing, and be compared with theoretic elongation, if actual measurement stretch value is more than
Value of calculation 10% or be less than 5%, should ascertain the reason and be correspondingly processed.In stretching process, rise that lotus speed is per minute should not surpass
Cross the 1/10 of design stress, voltage stabilizing 5min can carry out next stage tensioning after reaching every one-level controling power, reach afterbody and open
After drawing, voltage stabilizing 10min is lockable.
Referring to Fig. 1 to Fig. 9, of the present utility model can certainly opening when installing from Zhang Zisuo anchor head 6 produces machinery with reaming and stings
Close, form mechanical snap using three layers from Zhang Zisuo anchor head 6 reaming and the bonding of grouting material to provide anchor force, this anchor pole is pacified
After dress applying prestressing force, whole grouting can form bonding to free tensioning section, meet current dam prestressing force tonnage height, limit anchor
Gu the big engine request of power.
Above content be with reference to specific preferred implementation further detailed description of the utility model it is impossible to
Identification is of the present utility model to be embodied as being confined to these explanations.Ordinary skill for this utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace, said structure can also be made
Protection domain of the present utility model all should be considered as belonging to.
Claims (3)
1. a kind of multilamellar reaming self-locking prestressed anchor, including anchor bar body, grout pipe（7）, to medium ring（8）It is characterised in that：Institute
The anchor bar body stated is by six roots of sensation anchor pole monomer（1）Constitute by equilateral hexagon, described anchor pole monomer（1）By anchor rod body（2）With
Lengthen anchor pole（3）Composition, described anchor rod body（2）Rear end and lengthening anchor pole（3）Pass through adapter between front end（4）It is connected
Connect, described anchor rod body（2）Front end is closing taper, diagonal two anchor pole monomers（1）Pass through nut for one group respectively（5）
With one from Zhang Zisuo anchor head（6）It is connected thus forming three layers from Zhang Zisuo anchor head（6）, described three layers from Zhang Zisuo anchor head
（6）It is equally spaced, described grout pipe（7）From lengthening anchor pole（3）Rear end extends to anchor rod body（2）Front end.
2. a kind of multilamellar reaming self-locking prestressed anchor according to claim 1 it is characterised in that：Described three layers are opened certainly
Self-locking anchor head（6）Between be distributed spacing up and down and be spaced apart 3m.
3. a kind of multilamellar reaming self-locking prestressed anchor according to claim 1 it is characterised in that：Described anchor pole monomer
（1）It is made by fining twisted steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621005426.7U CN205975517U (en) | 2016-08-30 | 2016-08-30 | Multilayer reaming auto -lock prestressed anchorage pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621005426.7U CN205975517U (en) | 2016-08-30 | 2016-08-30 | Multilayer reaming auto -lock prestressed anchorage pole |
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| Publication Number | Publication Date |
|---|---|
| CN205975517U true CN205975517U (en) | 2017-02-22 |
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ID=58039170
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621005426.7U Active CN205975517U (en) | 2016-08-30 | 2016-08-30 | Multilayer reaming auto -lock prestressed anchorage pole |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223267A (en) * | 2016-08-30 | 2016-12-14 | 武大巨成结构股份有限公司 | A kind of multilamellar reaming self-locking prestressed anchor and installation method thereof |
| CN111780995A (en) * | 2020-07-17 | 2020-10-16 | 吉林大学 | Automatic centering and self-locking device for tire ride comfort test bench |
-
2016
- 2016-08-30 CN CN201621005426.7U patent/CN205975517U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223267A (en) * | 2016-08-30 | 2016-12-14 | 武大巨成结构股份有限公司 | A kind of multilamellar reaming self-locking prestressed anchor and installation method thereof |
| CN106223267B (en) * | 2016-08-30 | 2018-05-25 | 武大巨成结构股份有限公司 | A kind of installation method of multilayer reaming self-locking prestressed anchor |
| CN111780995A (en) * | 2020-07-17 | 2020-10-16 | 吉林大学 | Automatic centering and self-locking device for tire ride comfort test bench |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |