CN205894070U - A corrosion -resistant prefabricated grouted rock bolt for strongly -corrosive environment - Google Patents

A corrosion -resistant prefabricated grouted rock bolt for strongly -corrosive environment Download PDF

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Publication number
CN205894070U
CN205894070U CN201620808376.XU CN201620808376U CN205894070U CN 205894070 U CN205894070 U CN 205894070U CN 201620808376 U CN201620808376 U CN 201620808376U CN 205894070 U CN205894070 U CN 205894070U
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CN
China
Prior art keywords
reinforcing bar
sleeve pipe
corrosion
protection sleeve
gap
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Application number
CN201620808376.XU
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Chinese (zh)
Inventor
徐其功
陈春晖
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Guangdong Architectural Design Institute of the Department of Construction Co., Ltd.
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Guangdong Architectural Design Institute Of Department Of Construction Co Ltd
Guangdong Provincial Academy of Building Research Group Co Ltd
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Priority to CN201620808376.XU priority Critical patent/CN205894070U/en
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Abstract

The utility model discloses a corrosion -resistant prefabricated grouted rock bolt for strongly -corrosive environment, including the reinforcing bar, the cover is equipped with protective case on the reinforcing bar, has the clearance between protective case and the reinforcing bar, has filled in the clearance and has stretched into among the anchor anchor drilling after anticorrosive adhesive material forms a durable column body to it constitutes the stock to inject the grout. The utility model discloses protective case is established to the cover on the reinforcing bar, thereby it connects into one fast wholly just to fill anticorrosive adhesive material between protective case and reinforcing bar, owing to have two -layer anticorrosive coating, the non -corrosibility ability of reinforcing bar has not only been increased substantially, can prevent effectively that the reinforcing bar that is in under the abominable ambient condition from being corroded, the service life is prolonged, engineering structure's durability is greatly improved, and adopt anticorrosive bonding slurry bonding reinforcing bar and protective case to guarantee to have enough strong adhesion stress between protective case and the reinforcing bar, can satisfy the requirement of relevant industries standard to stock reinforcing bar resistance to corrosion and resistance to plucking, and great economical benefit and social benefit.

Description

A kind of corrosion-resistant prefabricated grouted rock bolt for strong corrosive environment
Technical field
This utility model is related to a kind of anchor pole, particularly to a kind of corrosion-resistant prefabricated grouting anchor for strong corrosive environment Bar.
Background technology
Urban development speed is more and more faster now, and high-rise and building gets more and more, and basement also increases therewith.? Under water buoyancy effect, the independent basement of high-rise periphery or band low layer annex basement usually need using anchor pole anti-floating.
Anchor pole is the anchoring system that pulling force is delivered to stable rock stratum or the soil body, and its one end is connected with engineering works, The other end gos deep in stable rock stratum or the soil body.Some anchor poles are divided into free segment and anchoring section, there is also only anchoring section Situation, free segment is the shank portion that pulling force passes to anchoring body using elastic elongation;Anchoring section refer to by injecting cement paste or Pulling force is delivered to the shank portion of around rock stratum or the soil body by machinery.Composition anchor pole must possess three below factor: 1. One tensile strength is higher than the body of rod of Rock And Soil;2. body of rod one end can be in close contact with Rock And Soil and form friction (or bonding) resistance Power;3. the other end that the body of rod is located at outside Rock And Soil can form the Radial resistant force to Rock And Soil.
Anchor pole reinforcing bar is frequently utilized in anchor pole as a kind of above-mentioned body of rod.Hole in rock stratum with the soil body, anchor pole reinforcing bar It is placed in armature boring, then anchor pole is constituted by grouting cement mortar.Anchor pole reinforcing bar is embedded in rock stratum and the soil body, it make Depend on the durability of itself with the life-span.The factor of impact anchor pole reinforcing bar durability has that prestressing force tonnage is excessive, material, construction work Skill is improper and environmental corrosion etc., and wherein, the maximum factor of impact is corrosion, the corrosion of the durability of anchor pole reinforcing bar and anchor pole reinforcing bar Destructiveness has direct relation.
The existing measure improving anchor pole reinforcing bar corrosion resistance has: (1) applies (resin) plating (zinc) in anchor pole rebar surface anti-corrosion Layer, but coating operation can only be carried out in professional factory, and in transport and work progress, anticorrosive coat is easily rubbed anchor pole reinforcing bar Scratch destruction, thus it cannot be guaranteed that Corrosion Protection;(2) also have (stainless using the plastic material of highly corrosion resistant and corrosion-resistant steel bar Steel reinforcing bar, rare earth reinforcing bar etc.) substitute anchor pole reinforcing bar, but, both materials costly, lead to construction cost higher it is impossible to It is widely popularized applicable.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, processing technology is simple, is readily transported, easy construction, The corrosion-resistant prefabricated grouted rock bolt for strong corrosive environment increase substantially decay resistance, increasing the service life.
The purpose of this utility model is realized by following technical measures: a kind of corrosion-resistant pre- for strong corrosive environment Grouted rock bolt processed, including reinforcing bar it is characterised in that: protection sleeve pipe, described protection sleeve pipe and reinforcing bar are arranged with described reinforcing bar Between there is gap, be perfused with described gap after anti-corrosion binding material forms a solid column and stretch into armature boring In, and pour into cement mortar composition anchor pole.
This utility model sheathed protection sleeve pipe on reinforcing bar, and irrigate anti-corrosion binding material between protection sleeve pipe and reinforcing bar Thus connecting into a solid entirety, due to having two-layer anticorrosive coat, (anti-corrosion binding material and protection sleeve pipe are respectively anti-as one layer Rotten layer), the antiseptic property of reinforcing bar is not only greatly improved, can effectively prevent the reinforcing bar being under severe environmental conditions rotten Erosion, extend its service life, substantially increase the durability of engineering structure, and using anti-corrosion bonding slurry bonding reinforcing bar and Protection sleeve pipe ensure that there is sufficiently strong cohesive force between protection sleeve pipe and reinforcing bar, disclosure satisfy that relevant industries specification to anchor pole Steel bar anti-corrosion corrosion and the requirement of resistance to plucking, have huge economic benefit and social benefit.In addition, this utility model structure is simple Single, and processing technology is simple, is usually prefabricated in the factory and completes, then transports to site operation, this utility model can be direct Stretch into compressed water slurry body in armature boring and constitute anchor pole, construction is very convenient, and in transport and work progress, is difficult to be broken Bad, ensure that good antiseptic property, therefore, this utility model is suitable to be widely popularized and is suitable for.
The material of protection sleeve pipe described in the utility model should meet the following requirements: there is enough intensity and pliability, It is not damaged by processing and installation process;There is water proofing property and chemical stability, reinforcing bar is had no adverse effects;Have corrosion-resistant Property, have no adverse reaction with anchor pole slurry and preservative;It is embedded in underground can not decompose for many years.
As a kind of preferred implementation of the present utility model, described protection sleeve pipe is plastic protective sleeve pipe.
As preferred implementation of the present utility model, described anti-corrosion binding material adopts epoxy resin.
As a kind of embodiment of the present utility model, described protection sleeve pipe adopts corrugated bushing as the anchoring section of anchor pole Protection.
As another embodiment of the present utility model, described protection sleeve pipe adopts corrugated bushing and smooth sleeve pipe, institute State smooth sleeve pipe and be placed on the free segment as anchor pole on wherein a section of reinforcing bar, described corrugated bushing is placed on another section of reinforcing bar As the anchoring section of anchor pole, one end of described smooth sleeve pipe stretch between the end of described corrugated bushing and reinforcing bar and its respectively with There is between reinforcing bar and corrugated bushing gap, or one end of described smooth sleeve pipe is enclosed within the end of corrugated bushing and itself and ripple There is between stricture of vagina sleeve pipe gap, described epoxy resin is poured in whole gaps.
In order to realize the making of various length anchor pole reinforcing bars according to job site practical situation, that is, need at least two reinforcing bars When connecting lengthening, as a kind of improvement of the present utility model, described reinforcing bar at least two, every reinforcing bar is arranged with protection Sleeve pipe as the first protection sleeve pipe, stretched out the first protection sleeve pipe and docked by connector, in described company by the end of adjacent reinforcing bar Protection sleeve pipe is arranged with fitting as the second protection sleeve pipe, the two ends of described second protection sleeve pipe are respectively fitted over two first guarantors On the end of protecting pipe and and first protection sleeve pipe between there is gap, described first protection sleeve pipe and reinforcing bar between, second guarantor It is respectively provided with gap, described epoxy resin is poured in whole gaps between protecting pipe and connector.
As a kind of embodiment of the present utility model, described connector adopts screw shell, and the end of described reinforcing bar sets There is external screw thread, the inwall of described screw shell is had the female thread being adapted with the external screw thread on reinforcing bar, described screw shell The end being screwed in adjacent reinforcing bar makes the two link into an integrated entity.
As a kind of embodiment of the present utility model, one of end of described protection sleeve pipe and corresponding It is tightly connected between the end of reinforcing bar, have between the other end of protection sleeve pipe and the other end of corresponding reinforcing bar Opening, the gap between this opening and protection sleeve pipe and reinforcing bar communicates, and described anti-corrosion binding material is between described opening is filled into In gap and make opening seal.
Compared with prior art, this utility model has as follows a significantly effect:
(1) this utility model is not only greatly improved the antiseptic property of reinforcing bar, can effectively prevent from being in strong corrosive environment bar Reinforcing bar under part is corroded, and extends its service life, substantially increases the durability of engineering structure, and adopts anti-corrosion bonding Material bonding reinforcing bar and protection sleeve pipe ensure that there is sufficiently strong cohesive force between protection sleeve pipe and reinforcing bar, disclosure satisfy that correlation The requirement to anchor pole reinforcing bar anticorrosive property and resistance to plucking for the industry standard, has huge economic benefit and social benefit.
(2) this utility model is usually prefabricated in the factory and completes, and then transports to site operation, is directly protruding into armature boring Middle cementing slurry, construction is very convenient.
(3) this utility model, in transport and work progress, is protected due to having protection sleeve pipe and the double-deck of anti-corrosion binding material Shield, is difficult to be destroyed, ensure that good antiseptic property.
(4) this utility model, by the way of being prefabricated in the factory, anti-corrosion binding material is poured between protection sleeve pipe and reinforcing bar Gap in, this mode ensure that the degree of compaction of grouting, it is to avoid bubble during grouting, and cohesive force is strong, thus ensureing to fill Slurry quality is it is ensured that the antiseptic property of reinforcing bar, and ensures to protect the adhesion strength between sleeve pipe and reinforcing bar.
(5) this utility model structure is simple, and processing technology simple it is adaptable to the anchor bolt construction engineering of strong corrosive environment.
Brief description
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structure sectional view of this utility model embodiment 1;
Fig. 2 is the profile of the a-a line along along Fig. 1;
Fig. 3 is the structure sectional view (being not drawn into cement mortar) of this utility model embodiment 2;
Fig. 4 is the profile (being not drawn into cement mortar) of the b-b line along along Fig. 3;
Fig. 5 is the structure sectional view (being not drawn into cement mortar) of this utility model embodiment 3.
Specific embodiment
Embodiment 1
As illustrated in fig. 1 and 2, it is a kind of corrosion-resistant prefabricated grouted rock bolt 1 for strong corrosive environment of this utility model, including Reinforcing bar 2, reinforcing bar 2 adopts Ribbed Bar, and Ribbed Bar has helical rib stricture of vagina, is arranged with protection sleeve pipe on reinforcing bar 2, at this In embodiment, protection sleeve pipe is plastic protective sleeve pipe, and plastic protective sleeve pipe adopts corrugated bushing 3 as the anchoring section guarantor of anchor pole Shield.Between protection sleeve pipe and reinforcing bar 2, there is gap, be perfused with anti-corrosion binding material 9 in the gap and form a solid column Stretch in armature boring and pour into cement mortar 10 after body and constitute anchor pole 1.Anti-corrosion binding material 9 not only has antiseptic property, and Can ensure to protect, between sleeve pipe and reinforcing bar, there is sufficiently strong cohesive force, make the two connect into a solid entirety, disclosure satisfy that The requirement to anchor pole reinforcing bar anticorrosive property and resistance to plucking for the relevant industries specification.
In the present embodiment, anti-corrosion binding material 9 adopts existing epoxy resin, it would however also be possible to employ other has similar spy The material of property.
It is tightly connected between one of end of corrugated bushing 3 and the end of corresponding reinforcing bar 2, corrugated bushing Between the other end of 3 the other end and corresponding reinforcing bar 2, there is opening, this opening and corrugated bushing 3 and reinforcing bar 2 Between gap communicate, using artificial or mechanical system (as pressure grouting machine), epoxy resin is filled into gap from opening And so that opening is sealed.
In other embodiments, in the gap between corrugated bushing and reinforcing bar during infusion epoxy resin, it would however also be possible to employ Other existing grouting process.
Embodiment 2
As shown in Figures 3 and 4, the present embodiment and the difference of embodiment 1 are: protection sleeve pipe adopt corrugated bushing 4 and Smooth sleeve pipe 5, smooth sleeve pipe 5 is placed on the free segment on wherein a section of reinforcing bar 2 as anchor pole, and corrugated bushing 4 is placed on reinforcing bar 2 As the anchoring section of anchor pole on another section, one end of smooth sleeve pipe 5 is stretched between the end of corrugated bushing 4 and reinforcing bar 2 and its point Not there is and reinforcing bar 2 and corrugated bushing 4 between gap, epoxy resin is poured in whole gaps, and that is, epoxy resin is poured in Gap between corrugated bushing 4 and reinforcing bar 2, between smooth sleeve pipe 5 and reinforcing bar 2 and between corrugated bushing 4 and smooth sleeve pipe 5 In.
In other embodiments, one end of smooth sleeve pipe is enclosed within the end of corrugated bushing and it has and corrugated bushing between Have gap, epoxy resin is poured in whole gaps, that is, epoxy resin be poured between corrugated bushing and reinforcing bar, smooth sleeve pipe In gap and reinforcing bar between and between corrugated bushing and smooth sleeve pipe.
Embodiment 3
As shown in figure 5, the present embodiment is with the difference of embodiment 1: reinforcing bar 2 is two, every reinforcing bar 2 covers It is provided with protection sleeve pipe as the first protection sleeve pipe 6, the end of two reinforcing bars 2 stretches out respective set the first protective case thereon respectively Pipe 6 is simultaneously docked by connector, and in the present embodiment, connector adopts screw shell 7, is arranged with protection on screw shell 7 Sleeve pipe as second protection sleeve pipe 8, second protection sleeve pipe 8 two ends be respectively fitted over two first protection sleeve pipes 6 ends on and And the first protection sleeve pipe 6 between, there is gap, specifically carry out screw thread process in the end of reinforcing bar 2 and form external screw thread 10, screw thread The female thread 11 being adapted with the external screw thread on reinforcing bar 2 is had on the inwall of sleeve 7, screw shell 7 is screwed in two reinforcing bars 2 End makes the two link into an integrated entity.Between first protection sleeve pipe 6 and reinforcing bar 2, between the second protection sleeve pipe 8 and screw shell 7 all There is gap, epoxy resin is poured in whole gaps.
The present embodiment can realize the making of various length anchor pole reinforcing bars according to job site practical situation, can be by least two Root bar connecting lengthens, when connecting the reinforcing bar lengthening more than two, the connected mode of adjacent two reinforcing bars and protection sleeve pipe Structure is identical with the present embodiment, will not be described here.
Embodiment not limited to this of the present utility model, according to the above of the present utility model, general according to this area Logical technological know-how and customary means, under the premise of without departing from this utility model above-mentioned basic fundamental thought, of the present utility model anti- Material used by rotten binding material, protection sleeve pipe, connector etc. also have other embodiment.Therefore this utility model is acceptable Make modification, replacement or the change of other various ways, all fall within this utility model rights protection scope.

Claims (8)

1. a kind of corrosion-resistant prefabricated grouted rock bolt for strong corrosive environment, including reinforcing bar it is characterised in that: on described reinforcing bar It is arranged with protection sleeve pipe, between described protection sleeve pipe and reinforcing bar, there is gap, described gap is perfused with anti-corrosion binding material Stretch in armature boring after forming a solid column, and pour into cement mortar and constitute anchor pole.
2. the corrosion-resistant prefabricated grouted rock bolt for strong corrosive environment according to claim 1 it is characterised in that: described guarantor Protecting pipe is plastic protective sleeve pipe.
3. the corrosion-resistant prefabricated grouted rock bolt for strong corrosive environment according to claim 2 it is characterised in that: described anti- Rotten binding material adopts epoxy resin.
4. the corrosion-resistant prefabricated grouted rock bolt for strong corrosive environment according to claim 3 it is characterised in that: described guarantor Protecting pipe adopts corrugated bushing as the anchoring section protection of anchor pole.
5. the corrosion-resistant prefabricated grouted rock bolt for strong corrosive environment according to claim 3 it is characterised in that: described guarantor Protecting pipe adopts corrugated bushing and smooth sleeve pipe, and described smooth sleeve pipe is placed on the freedom on wherein a section of reinforcing bar as anchor pole Section, described corrugated bushing is placed on the anchoring section another section of reinforcing bar on as anchor pole, described in one end of described smooth sleeve pipe is stretched into Between the end of corrugated bushing and reinforcing bar and it has gap respectively and reinforcing bar and corrugated bushing between, or described smooth sleeve pipe One end be enclosed within the end of corrugated bushing and it has gap and corrugated bushing between, between described epoxy resin is poured in all In gap.
6. the corrosion-resistant prefabricated grouted rock bolt for strong corrosive environment according to claim 3 it is characterised in that: described steel At least two, muscle, is arranged with protection sleeve pipe as the first protection sleeve pipe, guarantor is stretched out in the end of adjacent reinforcing bar on every reinforcing bar Protecting pipe is simultaneously docked by connector, described connector is arranged with protection sleeve pipe as second protection sleeve pipe, described second The two ends of protection sleeve pipe are respectively fitted on the end of two first protection sleeve pipes and have gap and the first protection sleeve pipe between, institute State between the first protection sleeve pipe and reinforcing bar, between the second protection sleeve pipe and connector, be respectively provided with gap, described epoxy resin perfusion In whole gaps.
7. the corrosion-resistant prefabricated grouted rock bolt for strong corrosive environment according to claim 6 it is characterised in that: described company Fitting adopts screw shell, and the end of described reinforcing bar is provided with external screw thread, the inwall of described screw shell has with reinforcing bar on The female thread that external screw thread is adapted, the end that described screw shell is screwed in adjacent reinforcing bar makes the two link into an integrated entity.
8. the corrosion-resistant prefabricated grouted rock bolt for strong corrosive environment according to claim 1 it is characterised in that: described guarantor Be tightly connected between one of end of protecting pipe and the end of corresponding reinforcing bar, protection sleeve pipe the other end and Between the other end of corresponding reinforcing bar, there is opening, the gap between this opening and protection sleeve pipe and reinforcing bar communicates, Described anti-corrosion binding material is filled into gap from described opening and so that opening is sealed.
CN201620808376.XU 2016-07-28 2016-07-28 A corrosion -resistant prefabricated grouted rock bolt for strongly -corrosive environment Active CN205894070U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620808376.XU CN205894070U (en) 2016-07-28 2016-07-28 A corrosion -resistant prefabricated grouted rock bolt for strongly -corrosive environment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620808376.XU CN205894070U (en) 2016-07-28 2016-07-28 A corrosion -resistant prefabricated grouted rock bolt for strongly -corrosive environment

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CN205894070U true CN205894070U (en) 2017-01-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106049493A (en) * 2016-07-28 2016-10-26 广东省建科建筑设计院有限公司 Anti-corrosion prefabricated grouting anchor rod for highly corrosive environment
CN111764384A (en) * 2019-10-08 2020-10-13 中国电建集团华东勘测设计研究院有限公司 Adopt single-deck bellows and resin material to realize anticorrosive anchor rope structure of double-deck

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106049493A (en) * 2016-07-28 2016-10-26 广东省建科建筑设计院有限公司 Anti-corrosion prefabricated grouting anchor rod for highly corrosive environment
CN111764384A (en) * 2019-10-08 2020-10-13 中国电建集团华东勘测设计研究院有限公司 Adopt single-deck bellows and resin material to realize anticorrosive anchor rope structure of double-deck

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GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200113

Address after: 510500 martyrs East Road, Guangdong, Guangzhou No. 121

Patentee after: Guangdong Architectural Design Institute of the Department of Construction Co., Ltd.

Address before: 510500 martyrs East Road, Guangdong, Guangzhou No. 121

Co-patentee before: Guangdong Construction Academy Group Plc

Patentee before: Guangdong Architectural Design Institute of the Department of Construction Co., Ltd.