CN106351247A - Anchor cage ring type foundation with replaceable anchor bolt - Google Patents
Anchor cage ring type foundation with replaceable anchor bolt Download PDFInfo
- Publication number
- CN106351247A CN106351247A CN201610885790.5A CN201610885790A CN106351247A CN 106351247 A CN106351247 A CN 106351247A CN 201610885790 A CN201610885790 A CN 201610885790A CN 106351247 A CN106351247 A CN 106351247A
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- Prior art keywords
- bolt
- crab
- anchor slab
- anchor
- cage ring
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D37/00—Repair of damaged foundations or foundation structures
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Joining Of Building Structures In Genera (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an anchor cage ring type foundation with a replaceable anchor bolt. According to the key point of the technical scheme, the anchor cage ring type foundation comprises an upper anchor plate, a lower anchor plate and the anchor bolt for connecting upper anchor plate and the lower anchor plate, wherein the anchor bolt is sleeved with a rigid sleeve for isolating concrete, two ends of the rigid sleeve are connected to the upper anchor plate and the lower anchor plate in a sealed mode, the upper end of the anchor bolt is connected with the upper anchor plate, the lower end of the anchor bolt penetrates through the lower anchor plate and is in threaded connection with an isolation cap integrally arranged and used for isolating concrete, and the open end of the isolation cap is in sealed connection with the lower anchor plate. The integrally arranged isolation cap is adopted, and the structural type of a sealing assembly is improved, so that the anchor cage ring type foundation has the advantages of reducing the cost and being convenient to replace.
Description
Technical field
The present invention relates to wind power industry technical field of civil engineering, particularly to the anchor cage cyclic group of replaceable crab-bolt
Plinth and replacing construction method.
Background technology
At present for the frame of large-scale or large equipment, pylon, including wind-driven generator, wind turbine, power transmission line
The building such as street lighting and advertiser, bridge pad, business signboard, highway signboard, Ski Lift is all taken using scene
The concrete foundation built supports.
Especially in recent years, with the raising of China's rapid development of economy and social environment consciousness, wind-power electricity generation scale
Increasingly increase, wind generator tower is increasingly becoming main flow.For this reason, anchor cage ring formula basis is in wind power generation stepped middle role
More and more important.
Chinese patent application is published as cn105155571a and discloses a kind of removable prestressed anchor pin device and its peace
Dress method and replacing options, it mainly includes anchor slab, lower anchor slab, and in connection, the crab-bolt of anchor slab and lower anchor slab, is enclosed within crab-bolt
Outer plastic bushing, the upper/lower terminal of plastic bushing, by thermal shrinkable sleeve collapsed seal, the thermal shrinkable sleeve of plastic bushing upper end is provided with
Nonmetallic leveling nut, crab-bolt top is provided with top nut, and the bottom of crab-bolt is affixed with lower anchor slab by lower nut, and in lower spiral shell
Female sheathed nut box in outside is so that concrete is isolated with crab-bolt and nut.
The utility model patent authorizing open (bulletin) number: cn201747544u discloses a kind of installation of wind-driven generator
Pedestal and the installation pedestal of this wind-driven generator of wind-driven generator, comprising: concrete body and at least two lower margin spiral shell
Bolt, described at least two foundation bolt is embedded in described concrete body；Described at least two lower margin spiral shell
One end of bolt be provided with connect wind-driven generator tower backing plate flange, described at least two foundation bolt another
End is provided with anchoring flange, and described backing plate flange and anchoring flange are all installed on described concrete body；Described foundation bolt
On be arranged with the sleeve pipe of foundation bolt and concrete body isolation, foundation bolt two ends are provided with flexible soft with telescopic joint
Pipe.
Authorization Notice No. is that the utility model patent of cn 202023199 u discloses a kind of basis prestressing force anchor slab crab-bolt
Molectron, including upper anchor slab, lower anchor slab, upper anchor slab and lower anchor slab pass through long anchor bolts, the long anchor at the upper and lower plane of upper anchor slab
Leveling nut is separately installed with bolt, lower anchor slab is provided with the leveling bolt being evenly distributed, near interior on upper anchor slab baseplane
Ring and outer shroud edge are equipped with the welding rivet being evenly distributed, and the long crab-bolt at the upper and lower plane of lower anchor slab is separately installed with
Thin nut and nut, suit heat shrinking sleeve, crab-bolt sleeve pipe in long crab-bolt.
The utility model patent of Authorization Notice No. cn 203947487 u discloses a kind of wind turbine tower basis and in advance should
Power crab-bolt, including two crab-bolt threaded upper ends sections, crab-bolt lower end thread segment, upper screw thread and polished rod changeover portion, lower screw thread and polished rod mistake
Cross section, crab-bolt light bar segment, thin heat shrinking sleeve, thick heat shrinking sleeve, in described thin heat shrinking sleeve suit crab-bolt light bar segment, described
Thick heat shrinking sleeve is sleeved on the bottom of crab-bolt light bar segment, and thin heat shrinking sleeve is plugged between thick heat shrinking sleeve and crab-bolt light bar segment,
Crab-bolt threaded upper ends section is located at the upper end of crab-bolt light bar segment, and crab-bolt lower end thread segment is located at the lower end of crab-bolt light bar segment, described
Upper screw thread and polished rod changeover portion are located at the changeover portion of crab-bolt threaded upper ends section and crab-bolt light bar segment, lower screw thread and polished rod transition section
Changeover portion in crab-bolt lower end thread segment and crab-bolt light bar segment.
To sum up, referring to Fig. 9 to Figure 11, all of above mode is being adopted to realize the isolation between crab-bolt 4 and concrete
Mode is a sheathed plastic bushing 42 outer in crab-bolt 4, and plastic bushing 42 two ends are sealed by thermal shrinkable sleeve 41.First
First, nut box and nut split are arranged, and need by nut-welding on lower anchor slab to realize the circumferentially fixed of nut, but
Weldering nut or the Stress non-homogeneity causing whole bottom flange, secondly, thus can increase by one welding sequence, thus increasing into
This；Again, in order to meet execution conditions, plastic bushing 42 and crab-bolt 4 need certain gap, and in whole crab-bolt 4 device
Substantially all it is filled in the middle of concrete, the power that concrete will certainly produce extruding to plastic bushing 42 during pouring forces
Plastic bushing 42 be deformed so that between crab-bolt 4 and plastic bushing 42 not coaxial it is difficult to make fracture crab-bolt 4 screw out carry out more
Change；Again, the two ends of plastic bushing 42 carry out collapsed seal by thermal shrinkable sleeve 41, thus will make in plastic bushing 42
At insert port, bore diminishes, shown in Figure 11, then new crab-bolt 4 is difficult to be inserted in plastic bushing 42, thus causing more
Change crab-bolt 4 inconvenient.
Content of the invention
The purpose of the present invention one is the anchor cage ring formula basis providing replaceable crab-bolt so as to have easy construction, replacing side
Just advantage.
The above-mentioned technical purpose one of the present invention has the technical scheme that a kind of anchor of replaceable crab-bolt
Cage ring formula basis, including foundation platform, is embedded with anchor cage ring assembly, described anchor cage ring assembly includes in described foundation platform
Upper anchor slab, lower anchor slab and the crab-bolt connecting upper anchor slab and lower anchor slab, are arranged with for isolating concrete outside described crab-bolt
Rigid casing, described rigid casing two ends are tightly connected respectively at upper anchor slab and lower anchor slab, and the upper end of described crab-bolt leads to
Cross top nut to be connected with upper anchor slab, the lower end of described crab-bolt passes through lower anchor slab and screw thread is connected with being wholely set and be used for isolating mixed
The isolating cap of solidifying soil, the opening of isolating cap is tightly connected with lower anchor slab.
By adopting technique scheme, in the outer sheathed rigid casing of crab-bolt, on the one hand can effectively intercept concrete with
Crab-bolt pours together, on the other hand due to its have rigidity be unlikely to deform in the casting process of whole concrete so that
Rigid casing and crab-bolt keep preferable axiality, convenient when removing and installing crab-bolt；In addition, rigid casing
Two ends are all tightly connected with upper anchor slab and lower anchor slab and can effectively prevent liquid in casting process from being contacted with crab-bolt and corrode
Crab-bolt；Abandoned in prior art by the isolating cap of integrated setting and nut or nut box have been welded on the step on lower anchor slab
Suddenly, but make isolating cap circumferentially fixed by the effect that pours of concrete, it is to avoid defect produced by welding, on the one hand carry
The high performance of crab-bolt, on the other hand makes that installation is more simple and convenient, cost is lower.
Preferably, rigid casing two ends extend in anchor slab and lower anchor slab.
By adopting technique scheme, can effectively prevent liquid from entering in rigid casing, thus improving crab-bolt
Anticorrosive property, extends the service life of crab-bolt, and this mode has been abandoned to be shunk by thermal shrinkable sleeve in prior art and realized set
Seal form between pipe and crab-bolt, extends directly to the seal form in upper anchor slab by rigid casing, one can realize
Sealing between rigid casing and crab-bolt；Two can compensate rigid casing and the gap being arranged between anchor slab upper shoulder hole
To ensure the axiality of upper anchor slab, prevent anchor slab from producing and move radially；Three can be slightly larger than making rigid casing upper end open
The diameter of crab-bolt, be therefore sealed in this way during the crab-bolt more renewing with regard to convenient crab-bolt insertion so that crab-bolt
Replacing more convenient.
Preferably, described upper anchor slab is provided with shoulder hole, in described shoulder hole, the diameter of macropore is equal to the outer of rigid casing
Footpath, in shoulder hole, the diameter of aperture is matched with the diameter of crab-bolt, described rigid casing extend to shoulder hole big in the hole and
End is abutted with step.
Preferably, described lower anchor slab is provided with shoulder hole two, in described shoulder hole two, the diameter of macropore is equal to rigidity
The external diameter of sleeve pipe, in shoulder hole two, the diameter of aperture is matched with the diameter of crab-bolt, and described rigid casing is located at shoulder hole
Big in the hole and end is abutted with step.
By adopting technique scheme, rigid casing is extended directly to shoulder hole, the rank of upper anchor slab and lower anchor slab
In terraced hole two and step abuts to realize the sealing of rigid casing, due to the diameter phase of the diameter of aperture and crab-bolt in shoulder hole
Cooperation, therefore can effectively prevent anchor slab from moving radially, descend anchor slab also will not move radially in the same manner, which overcomes existing
In technology, the brought defect of sealing is realized by thermal shrinkable sleeve, then the insertion changing convenient new crab-bolt when crab-bolt.
The top stretching out anchor slab as preferred, described crab-bolt is cylindric or flat or prism-shaped, described anchor
It is circular or polygon that bolt is located at upper anchor slab with the partial cross section of lower anchor slab.
By adopting technique scheme, the top that crab-bolt is passed upper anchor slab is arranged to flat or prism-shaped can
With facilitate by fracture crab-bolt top half rotation take out, take out fracture crab-bolt top half after, by using beche will
The latter half of fracture crab-bolt is taken out.
It is closure nut as preferred, described isolating cap.
By adopting technique scheme, lower directly as isolating cap cost using closure nut, it is more convenient.
It is stainless steel tube or steel pipe or plastic conduit as preferred, described rigid casing.
By adopting technique scheme, antiseptic property can be improved using stainless steel tube and plastic conduit.
The purpose of the present invention two is a kind of replacing construction method on the anchor cage ring formula basis providing replaceable crab-bolt so as to have
There is reduces cost, change convenient advantage.
The above-mentioned technical purpose two of the present invention has the technical scheme that one kind based on above-mentioned replaceable
The replacing construction method on the anchor cage ring formula basis of crab-bolt, comprises the following steps；
A, by fracture crab-bolt top take out；
B, using beche stretch in rigid casing by fracture crab-bolt bottom rotation take out；
C, insert new crab-bolt at the shoulder hole of upper anchor slab, in rotary-top crab-bolt so as to end is screwed in isolating cap, then
At the bottom tower above upper anchor slab, new pad and nut are installed successively.
The purpose of the present invention three is a kind of replacing construction method on the anchor cage ring formula basis providing replaceable crab-bolt so as to have
There is reduces cost, change convenient advantage.
The above-mentioned technical purpose three of the present invention has the technical scheme that one kind based on above-mentioned replaceable
The replacing construction method on the anchor cage ring formula basis of crab-bolt, comprises the following steps；
A, detection crab-bolt crack conditions, if being found to be crab-bolt material or other system defect leads to rupture, prepare to change all
Unbroken crab-bolt；
B, by other do not break crab-bolt according to diagonal principle by crab-bolt of reversely back-outing after root removal prestressing force, then from the rank of upper anchor slab
New crab-bolt, in rotary-top crab-bolt so as to end is screwed in isolating cap, the then bottom above upper anchor slab is inserted at terraced hole
New pad and the locking of top nut after-applied prestressing force are installed at portion's tower successively；
C, repeat above-mentioned b step until all crab-bolts are changed completes.
By adopting technique scheme, take off unspoiled crab-bolt, the top of crab-bolt can be clamped directly at instrument,
Whole crab-bolt is all taken off, more simple compared to the latter half that will change fracture crab-bolt.
In sum, the method have the advantages that replaceable crab-bolt anchor cage ring formula basis in, when need by
Crab-bolt disassembles from basis, in crab-bolt suit stainless steel sleeve pipe whole crab-bolt and concrete are kept apart, isolating cap with mix
Solidifying soil pours together, limits isolating cap and rotates with crab-bolt, so that generation between crab-bolt and isolating cap is rotated against, so that crab-bolt
Separate with isolating cap, also improve the sealing structure between crab-bolt and sleeve pipe in addition, abandoned in prior art and can lead after sealing
Cause crab-bolt to be difficult to the defect inserted it is achieved that the crab-bolt on anchor cage ring formula basis is replaceable, callable purpose, save substantial amounts of
Maintenance cost, improves this basic economic worth.
Brief description
Fig. 1 is the structural representation of embodiment 1；
Fig. 2 is to be used in embodiment one embodying the schematic diagram of attachment structure between crab-bolt and upper and lower anchor slab and rigid casing；
Fig. 3 is a portion enlarged drawing in Fig. 2；
Fig. 4 is b portion enlarged drawing in Fig. 2；
Fig. 5 is the structural representation of embodiment two；
It is for embodying the structural representation of annexation between rigid casing, crab-bolt and upper anchor slab in Fig. 6 in embodiment two；
Fig. 7 is the structural representation for embodying crab-bolt top；
Fig. 8 is the structural representation of isolating cap；
Fig. 9 is the structural representation of the annexation in prior art between crab-bolt, sleeve pipe and thermal shrinkable sleeve；
Figure 10 is for embodying state diagram when changing crab-bolt in prior art；
Figure 11 is c portion enlarged drawing in Figure 10；
Figure 12 is the structural representation embodying beche.
In figure: 1, foundation platform；2nd, upper anchor slab；21st, shoulder hole；3rd, lower anchor slab；31st, shoulder hole two；4th, crab-bolt；41、
Thermal shrinkable sleeve；42nd, plastic bushing；5th, rigid casing；6th, top nut；7th, isolating cap；8th, rigid sleeve；9th, bottom tower；10th, protect
Set；101st, drill bit.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiment 1, a kind of shown in Figure 1, the anchor cage ring formula basis of replaceable crab-bolt, form including by armored concrete
Foundation platform 1, is embedded with anchor cage ring assembly in foundation platform 1, wherein, anchor cage ring assembly include anchor slab 2 and lower anchor slab 3 with
And several run through the crab-bolt 4 of anchor slab 2 and lower anchor slab 3, the top that crab-bolt 4 stretches out anchor slab 2 in the present embodiment is cylinder
Shape, additionally can be arranged to prism-shaped.In addition, crab-bolt 4 is divided into the interior row being coaxially disposed and outer row, bottom tower 9 passes through anchor
Bolt 4 and top nut 6 about are fixed on anchor slab 2.
Isolating cap 7 is installed in the position that the lower section of lower anchor slab 3 is located at screwed hole, and crab-bolt 4 extends to isolating cap through lower anchor slab 3
7 internal simultaneously threaded with isolating cap 7, isolating cap 7 is cast in concrete, and this mode makes pouring of isolating cap 7 and concrete
The effect of building is realized circumferentially fixed.
So that crab-bolt 4 and concrete are isolated in the sheathed rigid casing 5 in outside of crab-bolt 4, rigid casing 5 two ends
All it is sealedly connected on anchor slab 2 and lower anchor slab 3.Rigid casing 5 selects stainless steel tube or hard in the present embodiment
Matter plastic tube or steel pipe, if in the case of selecting steel pipe, carry out preservative treatment on the surface of steel pipe.
Referring to Fig. 2 and Fig. 3, rigid casing 5 is made the following instructions with being tightly connected of crab-bolt 4 upper end, upper anchor slab 2 is arranged
Shoulder hole 21, in shoulder hole 21, the diameter of macropore is equal to the external diameter of rigid casing, and the diameter of aperture is matched with the diameter of crab-bolt 4
Close, the diameter of aperture is slightly larger than the diameter of crab-bolt 4, the depth of aperture is equal to the depth of macropore, forms step, just in shoulder hole 21
Property sleeve pipe 5 upper end extend in shoulder hole 21, the top of rigid casing 5 abut with step formation sealing.
Referring to Fig. 4, the sealing to rigid casing 5 and crab-bolt 4 lower end makes the following instructions, the setting ladder on lower anchor slab 3
Hole 2 31, rigid casing 5 extends in shoulder hole 2 31, and the diameter of rigid casing 5 is equal to the diameter of macropore in shoulder hole 2 31,
In shoulder hole 2 31, the diameter of aperture is matched with the diameter of crab-bolt 4, and wherein, the depth of aperture is equal to the depth of macropore, when firm
Property sleeve pipe 5 lower end is connected on the step of shoulder hole 2 31, thus can be also convenient on the premise of realizing sealing effectiveness
The insertion of new crab-bolt 4, can also be with effectively preventing moving radially of lower anchor slab 3.
Referring to Fig. 8, in the present embodiment, isolating cap 7 is closure nut.
Embodiment 2, referring to shown in Fig. 5,6, a kind of anchor cage ring formula basis of replaceable crab-bolt, the difference with embodiment 1 exists
In crab-bolt 4 is single row configuration.
Embodiment 3, a kind of shown in Figure 7, the anchor cage ring formula basis of replaceable crab-bolt, the difference with embodiment 2 is,
The part that crab-bolt 4 stretches out anchor slab 2 is arranged to flat.Further, it is also possible to the top that crab-bolt 4 is stretched out upper anchor slab 2 is processed into
Prism-shaped.
Embodiment 4, a kind of replacing construction method on the anchor cage ring formula basis of replaceable crab-bolt, comprise the following steps；
A, by fracture crab-bolt 4 top take out；
B, stretched into using beche in rigid casing 5 and the bottom rotation of the crab-bolt 4 of fracture is taken out；
C, insert new crab-bolt 4 at the shoulder hole 21 of upper anchor slab 2, in rotary-top crab-bolt 4 so as to end is screwed into isolating cap 7
Interior, then at the bottom tower 9 above upper anchor slab 2, new pad and top nut 6 are installed successively.
Shown in Figure 12, in the present embodiment, the concrete structure of beche includes sheath 10 and is arranged in sheath 10
Drill bit 101, sheath 10 is steel bushing, and the diameter of sheath lower end is slightly larger than the diameter of crab-bolt 4.Sheath 10 is stretched in rigid casing 5
And it is enclosed within the interference fits realization fixation that sheath 10 and crab-bolt 4 are passed through in the outside of fracture crab-bolt 4, drill bit 101 stretches into sheath 10
The interior fracture end face with fracture crab-bolt 4 is conflicted, and drill bit 101 cooperation electric drill is used along, drives fracture while drill bit 101 pierces
The latter half of crab-bolt 4 reversely rotates, and so that fracture crab-bolt is exited from isolating cap 7.Due to crab-bolt 4 rupture end face out-of-flatness, therefore
Play occurs when drill bit 101 just starts and pierces, the effect of sheath 10 can be with effective protection rigid casing 5.In addition protect
Set 10 and the shell of electric drill are fixed, to prevent sheath 10 from dropping in rigid casing 5.
Embodiment 5, a kind of replaceable crab-bolt anchor cage ring formula basis replacing construction method it is characterised in that include with
Lower step；
A, detection crab-bolt 4 crack conditions, if being found to be crab-bolt 4 material or other system defect leads to rupture, prepare to change complete
The unbroken crab-bolt in portion 4；
B, by other do not break crab-bolt according to diagonal principle by crab-bolt 4 of reversely back-outing after root removal prestressing force, then from upper anchor slab 2
New crab-bolt 4 is inserted, in rotary-top crab-bolt 4 so as to end is screwed in isolating cap 7, then in upper anchor slab 2 at shoulder hole 21
New pad and the locking of top nut 6 after-applied prestressing force are installed at the bottom tower 9 of top successively；
C, repeat above-mentioned b step until all crab-bolts are changed completes.
It should be noted that, crab-bolt crack conditions be detected as prior art, wherein predominantly detect the intensity of crab-bolt 4, other
The defect of system is the defect of the upper size of design, does not repeat in this application.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make to the present embodiment after reading this specification as needed does not have the modification of creative contribution, but as long as at this
All protected by Patent Law in the right of invention.
Claims (9)
1. a kind of anchor cage ring formula basis of replaceable crab-bolt, including foundation platform (1), is embedded with described foundation platform (1)
Anchor cage ring assembly it is characterised in that: described anchor cage ring assembly includes anchor slab (2), lower anchor slab (3) and connects upper anchor slab
(2) and lower anchor slab (3) crab-bolt (4), be arranged with the rigid casing (5) for isolating concrete outside described crab-bolt (4), described
Rigid casing (5) two ends be tightly connected with upper anchor slab (2) and lower anchor slab (3) respectively, the upper end of described crab-bolt (4) is passed through
Top nut (6) is connected with upper anchor slab (2), the lower end of described crab-bolt (4) passes through lower anchor slab (3) and screw thread is connected with being wholely set and
For isolating the isolating cap (7) of concrete, the opening of isolating cap (7) is tightly connected with lower anchor slab (3).
2. replaceable crab-bolt according to claim 1 anchor cage ring formula basis it is characterised in that: described rigid casing
(5) two ends each extend in supreme anchor slab (2) and lower anchor slab (3).
3. replaceable crab-bolt according to claim 1 anchor cage ring formula basis it is characterised in that: described upper anchor slab (2)
It is provided with shoulder hole (21), in shoulder hole (21), the diameter of macropore is equal to the external diameter of rigid casing (5), aperture in shoulder hole (21)
Diameter match with the diameter of crab-bolt (4), described rigid casing (5) extend to the big in the hole of shoulder hole (21) and end with
Step abuts.
4. replaceable crab-bolt according to claim 2 anchor cage ring formula basis it is characterised in that: described lower anchor slab (3)
It is provided with shoulder hole two (31), in shoulder hole two (31), the diameter of macropore is equal to the external diameter of rigid casing (5), shoulder hole two (31)
The diameter of middle aperture is matched with the diameter of crab-bolt (4), and described rigid casing (5) is located at big in the hole and the end of shoulder hole (31)
Portion is abutted with step.
5. replaceable crab-bolt according to claim 1 anchor cage ring formula basis it is characterised in that: described crab-bolt (4) is stretched
The top going out upper anchor slab (2) is cylindric or flat or prism-shaped, and described crab-bolt (4) is located at upper anchor slab (2) and lower anchor slab (3)
Partial cross section be circular or polygon.
6. replaceable crab-bolt according to claim 1 anchor cage ring formula basis it is characterised in that: described isolating cap (7)
For closure nut.
7. replaceable crab-bolt according to claim 1 anchor cage ring formula basis it is characterised in that: described rigid casing
(5) it is stainless steel tube or steel pipe or plastic conduit.
8. the replacing on the anchor cage ring formula basis of replaceable crab-bolt described in a kind of any one claim based on claim 1 to 7
Construction method is it is characterised in that comprise the following steps；
A, the top of the crab-bolt that will rupture (4) are taken out；
B, stretched into using beche in rigid casing (5) and the bottom rotation of the crab-bolt (4) of fracture is taken out；
C, insert new crab-bolt (4) from the shoulder hole (21) of upper anchor slab (2), in rotary-top crab-bolt (4) so as to end is screwed into
In isolating cap (7), then bottom tower (9) place in the top of upper anchor slab (2) installs new pad and top nut (6) successively.
9. the replacing on the anchor cage ring formula basis of replaceable crab-bolt described in a kind of any one claim based on claim 1 to 7
Construction method is it is characterised in that comprise the following steps；
A, detection crab-bolt (4) crack conditions, if being found to be crab-bolt (4) material or other system defect leads to rupture, prepare more
Change all unbroken crab-bolt (4)；
B, by other do not break crab-bolt (4) according to diagonal principle by crab-bolt (4) of reversely back-outing after root removal prestressing force, then from upper anchor
Shoulder hole (21) place of plate (2) inserts new crab-bolt (4), in rotary-top crab-bolt (4) so as to end is screwed in isolating cap (7),
Then bottom tower (9) place in the top of upper anchor slab (2) installs new pad and top nut (6) after-applied prestressing force lock successively
Tightly；
C, repeat above-mentioned b step until all crab-bolts are changed completes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885790.5A CN106351247B (en) | 2016-10-11 | 2016-10-11 | The anchor cage ring formula basis of replaceable anchor bolt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885790.5A CN106351247B (en) | 2016-10-11 | 2016-10-11 | The anchor cage ring formula basis of replaceable anchor bolt |
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| CN106351247A true CN106351247A (en) | 2017-01-25 |
| CN106351247B CN106351247B (en) | 2018-11-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107326920A (en) * | 2017-07-19 | 2017-11-07 | 北京金风科创风电设备有限公司 | Tower foundation anchor bolt assembly, tower foundation and construction method |
| CN108385711A (en) * | 2018-04-18 | 2018-08-10 | 上海磐武工业科技有限公司 | A kind of anchor cage ring formula basis and its installation method |
| CN109372007A (en) * | 2018-11-28 | 2019-02-22 | 长江三峡集团福建能源投资有限公司 | A kind of Oversea wind unit installation anchor bolt cage sealing anchor bolt and its construction method |
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| CN107326920A (en) * | 2017-07-19 | 2017-11-07 | 北京金风科创风电设备有限公司 | Tower foundation anchor bolt assembly, tower foundation and construction method |
| CN107326920B (en) * | 2017-07-19 | 2024-02-23 | 北京金风科创风电设备有限公司 | Tower foundation anchor bolt assembly, tower foundation and construction method |
| CN108385711A (en) * | 2018-04-18 | 2018-08-10 | 上海磐武工业科技有限公司 | A kind of anchor cage ring formula basis and its installation method |
| CN108385711B (en) * | 2018-04-18 | 2024-03-22 | 浙江星达能源科技有限公司 | Anchor cage ring type foundation and installation method thereof |
| CN109372007A (en) * | 2018-11-28 | 2019-02-22 | 长江三峡集团福建能源投资有限公司 | A kind of Oversea wind unit installation anchor bolt cage sealing anchor bolt and its construction method |
| CN109372007B (en) * | 2018-11-28 | 2023-11-07 | 长江三峡集团福建能源投资有限公司 | Sealing anchor bolt for installing anchor bolt cage of offshore wind turbine and construction method of sealing anchor bolt |
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