CN1240911C - Disjointable fixing apparatus of tension member and removal method of tension member - Google Patents
Disjointable fixing apparatus of tension member and removal method of tension member Download PDFInfo
- Publication number
- CN1240911C CN1240911C CNB018235506A CN01823550A CN1240911C CN 1240911 C CN1240911 C CN 1240911C CN B018235506 A CNB018235506 A CN B018235506A CN 01823550 A CN01823550 A CN 01823550A CN 1240911 C CN1240911 C CN 1240911C
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- CN
- China
- Prior art keywords
- tensional element
- anchor
- chocks
- fens
- fixator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 8
- 238000004873 anchoring Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
- E02D5/765—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor removable
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to a disjointable fixing apparatus of tension member and removal method of tension member through separating tension member from anchor by utilizing the repulsion occurred at the time of removing tensility in order to pull out tension member. The above features and other advantages of the present invention will make disassembly as well as installation even easier.
Description
Technical field
The present invention relates to be used for the anchor device of public works or construction works, more specifically, relate to the dismountable anchor device of tensional element, wherein anchor device is easy to install and have tensional element demountable structure after reaching its purpose.
Background technology
In conventional art, anchor is installed when the building underground installation temporarily, is used to support cob wall to prevent the member of land subsidence.Use according to it, anchor is divided into permanent anchor and interim anchor.When in the position that has underground water to ooze out easily or when obliquity construction building thing or structure, permanent anchor is installed is prevented that building or structure from separating or distortion.Interim anchor is a kind of fixed structure that can pull down after construction works is finished.Particularly, for permanent anchor, being retained in underground tensional element can become underground obstacle, can have problems in construction works, for example when underground installation is replenished.Therefore, the installation and removal of interim anchor have caused concern at present, and become the main flow of technical development.
The conventional art relevant with anchor is described below.
A purpose of first conventional art (Korean Patent No.2001-11265) is to support big anchoring load by the anchoring quantity tensional element more more than chock.First conventional art provides a kind of anchor device of permanent anchor, receives maximum tensional elements by using minimum chock, so that farthest use the pressure of tensional element, thus the stable construction works that needs big load.First conventional art is a kind of permanent anchor, main body wherein has the wedge ditch corresponding with the wedge ditch (groove) of wedge groove (trough), the inner circumferential surface that separates a taper in this position, have with the wedge groove of the corresponding wedge ditch of wedge ditch that diminishes along equidirectional at external peripheral surface and be inserted in wherein along the corresponding wedge ditch of the wedge ditch of the center chock that equidirectional diminishes at inner circumferential surface, and in the wedge groove, the center chock has the opposite wedge ditch of the cone shape that diminish corresponding with its inner circumferential surface, and corresponding with wedge ditch in the external peripheral surface, at the highest point of main body a lid is arranged.
A purpose of second conventional art (Korean Patent No.2001-16726) is by using detachable tensional element easily to dismantle the tensional element of being installed, and relate to a kind of method of anchor device and dismounting tensional element of interim anchor, can overcome the indeterminable problem of first conventional art.Upside at inner circumferential surface forms suspended wall, and the place forms centre bore in the middle of the isolated suspended wall of upside, and forms a plurality of apertura lateralises radially.The anchor device of interim anchor comprises: have the cylinder body that hangs projection on the centre bore inner circumferential surface; Be inserted in a plurality of strain chocks that are used to connect tensional element in the centre bore of cylinder body; Be inserted in the central component in the centre bore of cylinder body, this central component form cylindrical and within it upside form conical inserting portion and form targeting part at inner underside; The detachable tensional element chock of anchor is inserted in the conical inserting portion of central component and has the stretching jack, and tensional element is inserted in and wherein connects and the detachable tensional element chock block of anchor, is used for tensional element and tension chock are kept apart; Surround the cylinder block base of inferior part of the cylinder block, allow tensional element to pass through and the formation projection, the detachable tensional element clamping wedge element of anchor on projection; Waterproof ring and be positioned at lid on the waterproof ring is used to place the projection of cylinder block base, and anti-sealing or mortar infiltrate the cylinder body inboard from the outside; And fixator.The method of dismounting tensional element comprises the repulsive force by the detachable tensional element of anchor, center part suppresses the pressure by the anchor of the strain generation of tension chock, hang projection and separate when dismounting destroys during tensional element, and the detachable tension chock from anchor separates tensional element after the detachable tension chock of the anchor of center element contacts the detachable tension chock block of anchor from its appropriate position.
The 3rd conventional art (Korean Utility Model No.163598) relates to the anchor device that can easily mount and dismount tensional element.The dismountable anchoring element of tensional element that a purpose of the 3rd conventional art provides a kind of anchor, it is simple in structure, manufacturing and assembling have been improved owing to having reduced number of spare parts, in light weight, the reliability of dismounting tensional element improves, and tensional element can be dismantled without drawbench with hand.The dismounting of tensional element is by utilizing the chock in the main body to engage at least two tensional elements putting into back body, engaging between the operation dismounting tensional element that utilizes the anchor hole outside and the chock.The wedge groove supports the placement projection and is formed on main body inner peripheral surface lower end, there is cable to penetrate the cable hole that the wedge groove supports in the projection upper punch, having the ring wedge groove on projection supports, the electrical heating elements that is connected on the cable is embedded in the thermoplastic resin of thermal decomposition, the wedge groove inserts in the main body and is placed on the wedge groove and supports, wedge ditch in the wedge groove is less than semicircle and be formed on the position that circumference is divided into bellmouth, the monolithic chock have with the excircle conical surface in the identical wedge ditch of wedge ditch quantity, insert in the wedge groove and be placed on the wedge groove and support, be placed with lid and fixing on the main body summit, bolt is placed in the bolt hole that is formed centrally in the lid and with the chock upper end and is connected.
As mentioned above, these conventional arts relevant with anchor are the inventions of dismantling tensional element after reaching anchor installation purpose.
In first conventional art (Korean Patent No.2001-11265), its advantage is that big anchoring load is supported by the tensional element of anchoring quantity far more than chock, and its shortcoming is can not dismantle after the tensional element.
In second conventional art (Korean Patent No.2001-16726), the tensional element that uses dismountable tensional element to remove and install easily.But its shortcoming is the complex structure of anchor, and the quantity of part is a lot, owing to the increase of detachable tensional element has increased manufacturing cost, and has increased the work of dismounting tensional element.Particularly, shape is very complicated, thereby processing and assembling are very difficult.This has reduced operating efficiency.If when causing detachable tensional element to fluff owing to the operating mistake before the detachable tensional element of dismounting tensional element is applied repulsive force, dismountable tensional element can come out.As a result, the center part that should restore does not restore, thus the not isolation of strain tensional element chock, and all tensional elements become non-dismountable.Therefore, remaining strain tensional element can not be dismantled.
In the 3rd conventional art (Korean Utility Model No.163598), it is simple in structure and be easy to install.But,, therefore use electronic installation dismounting tensional element because the electrical heating elements that is connected with cable is embedded in the thermal decomposition thermoplastic resin.Therefore, the process of dismounting tensional element complicates.When anchor was reused, electrical heating elements should be embedded in the thermal decomposition thermoplastic resin.
For traditional anchor device, in order to dismantle tensional element after tensional element is installed, tensional element is coated with coating, uses similar drawbench to remove the tensional element that temporarily is contained in the ground.When tensional element is installed temporarily, carry out BENDING PROCESS, so that prevent the separation and the distortion of tensional element.Therefore, drawing work becomes difficult when the dismounting tensional element, and the electric power that the dismounting tensional element need be very big, and drawing work is much also dangerous.
Summary of the invention
In order to overcome the problems referred to above, the preferred embodiments of the present invention increase the Mechanical Reliability of anchor and the anchor device that use comprises tensional element by the structure of simplifying anchor, and installation work and the easy routine work simplified are provided.
In order to achieve the above object, the preferred embodiments of the present invention provide a kind of tensional element dismountable anchor device, comprising: elastic device is used to prevent that three fens chocks (trichotomized wedge) on top from recovering; Be connected the lid on the elastic device; Be connected the cylinder body that covers; Anchor inserts the centre bore of cylinder body and comprises three fens chocks of the single tensional element of clamping; Fixator is made and is had tensional element by foundry goods and inserts wherein; And the linkage that connects anchor and fixator.
The present invention also provides a kind of method of dismantling tensional element, comprising: will act on the anchor than the big repulsive force of confining force of the support spring of three fens chocks; The chock support spring was compressed by the repulsive force of tensional element in three minutes; Chock returned in the space that produces in cylinder body during the compression spring in three minutes; It is big that the gap of three fens chocks becomes; The returning of three fens chocks returning is supported the latch that stops spring bolt that three fens chocks return and stops; Isolated tensional element from three minutes the chock, the decline of three fens chocks at this moment is stopped in the state of keeping the gap; And, tensional element is removed by drawing tensional element after separating anchor.
Description of drawings
In order to understand the present invention and advantage thereof more up hill and dale, with reference to following description, similar reference number is represented similar part among the figure in conjunction with the accompanying drawings.In the accompanying drawing:
Fig. 1 is the structure chart according to the dismountable anchor device of tensional element of the present invention, comprising the dismountable anchor of tensional element, linkage and the fixator made by foundry goods;
Fig. 2 is the exploded view of expression cylinder body and strain tensional element chock;
Fig. 3 represents the dismountable anchor of part tensional element;
Fig. 4 a represents the installment state of plug and socket;
Fig. 4 b represents the installment state of unidirectional plug;
Fig. 5 is the sectional view of the fixator made by foundry goods of expression;
Fig. 6 a represents the installment state of the tensional element of the dismountable anchor of tensional element;
Fig. 6 b represents to dismantle the process of the tensional element of the dismountable anchor of tensional element; And
Fig. 6 c represents the disassembly status of the tensional element of the dismountable anchor of tensional element.
The specific embodiment
To describe the preferred embodiments of the present invention in detail below, the example is represented in the accompanying drawings.
Referring to Fig. 1, anchor device of the present invention comprises the dismountable anchor 10 of tensional element, the fixator 60 of being made and tensional element being included by foundry goods, and the attachment plug 20 and the socket 30 that connect dismountable anchor 10 of tensional element and fixator 60.
Referring to Fig. 2, the dismountable anchor 10 of tensional element comprises cylinder body 70 and the three fens chocks 110 among Fig. 2, lid 120 among Fig. 3 and chock support spring 130, and support that chock restores stop spring bolt 150.
Shown in Fig. 4 a, the linkage that connects dismountable anchor 10 of tensional element and fixator 60 is a plug and socket.Fig. 4 represents fixator 60 and plug 20 and socket 30.Shown in Fig. 4 a, coating 40 is inserted in the socket 30 of the linkage 180 that comprises plug 20 and socket 30, only have tensional element to be inserted in after the plug 20, and the tensional element coating is clamped in the socket 30 by the projection of plug 20.
Here, tensional element coating 40 is coated on the tensional element, thereby uses manpower and do not use and extract machinery and can carry out the work of extracting.
Referring to Fig. 4 b, unidirectional plug 200 with comprise that the linkage of plug 20 and socket 30 has similar shapes and function.Unidirectional plug 200 has external screw thread at the one end, has the clamping projection therebetween, thereby external screw thread is screwed in the dismountable anchor 10 of tensional element.
Referring to Fig. 5, linkage 180 inserts fixator 60 and is positioned at an end of fixator 60, is used to connect the coupling part 100 of cylinder body 70, thereby the dismountable anchor 10 of tensional element combines with fixator 60.
Referring to Fig. 6 a, the dismountable anchor 10 of tensional element is used to keep tensional element to be inserted in wherein.At this moment, in the taper ditch that inserts in the cylinder bodies 70 of three fens chocks of taper 110 and be connected to tensional element 50 in the tensional element jack 90 that inserts cylinder body 70 lower ends.Along with repulsive force increases, cylinder body 70 internal pressures increase.As a result, the gap turn narrow of three fens chocks 110, and horizontal pressure force increase, thus the adhesion of tensional element 50 is increased.
Referring to Fig. 6 b, be contained in tensional element 50 in the dismountable anchor 10 of tensional element and bear the support force of support spring 130, this support force is to push the repulsive force that three fens chocks 110 produce open and form by removing pulling force, thereby increase the gap of three fens chocks 110, horizontal pressure force between three fens chocks and the tensional element reduces, thereby adhesion disappears.At this moment, when the constraint of the spring 140 that advances disappears, moved forward to cylinder body 70 inside simultaneously by three fens fixing latches that stop spring bolt 150 160 of chock, thereby prevent the recovery of three fens chocks.After all, chock was stopped by latch in three minutes, thereby kept the gap of horizontal pressure force and three fens chocks, can easily dismantle tensional element.
Particularly, the support spring 130 of three fens chocks is compressed when the load that applies greater than predetermined value, and three fens chocks are recovered and since load during less than predetermined value three fens chocks also so recover, prevent the external impact or the crackle of tensional element grouting, thereby improved the Mechanical Reliability of anchor.
Fig. 6 c represents the entirely disassembled state of tensional element, and wherein three fens chocks are by latch 160 clampings of spring bolt 150, thereby prevent returning of three fens chocks.
The fixator 60 of Fig. 5 has the tensional element that is inserted in its center.When fixing holder, traditional fixator needs the outside sweep process.But tensional element inserts in the fixator 60 of the present invention, does not need extra BENDING PROCESS.
Shown in Fig. 1 to 5, the dismountable ground tackle of tensional element has coupling part 100, is connected with linkage in cylinder body 70 bottoms.Like this, the dismountable anchor 10 of tensional element can be realized being connected with the fixator 60 that comprises tensional element by shirtsleeve operation, reaches outstanding service behaviour and Mechanical Reliability.
As mentioned above, the present invention is an anchor system, comprise the dismountable anchor of the tensional element that is used for single tensional element, the fixator that does not need BENDING PROCESS and make by foundry goods, and the linkage that connects dismountable anchor of tensional element and fixator, and it is different with traditional anchor, it has the structure of single tensional element and simple in structure, owing to the quantity that has reduced the anchor part has low manufacturing cost, have than the obvious outstanding service behaviour of traditional anchor, thereby shortened the working time, and, made the reliability of mechanical function of anchor very high because it has simple structure.
The chock support spring was contained in anchor device inside in three minutes, thereby prevented because moving of three fens chocks that external impact causes keeps the power of clamping tensional element.Because different with traditional anchor, the repulsive force that structure utilization dismounting tensional element of the present invention produces is dismantled tensional element easily, has shortened the working time of dismounting tensional element.
Structure of the present invention comprises that tensional element is inserted in the fixator of being made by foundry goods, has prevented the distortion and the distortion of tensional element.Owing to, tensional element is dismantled easily, and installation work is also simple directly in the enterprising line bend process of tensional element.
Different with traditional U-turn anchor, the present invention uses straight tensional element, and all no longer need independent fixator in the grouting part.Particularly, the length of the tensional element that uses in the work of extracting reduces half, makes tensional element be easy to dismounting, and the tensional element of extracting is wanted to reuse, and is economical therefore.
Though illustrate and described the present invention especially with reference to preferred embodiment, persons skilled in the art it should be understood that under situation without departing from the spirit and scope of the present invention, can make aforesaid and other variation.
Claims (8)
1. dismountable anchor device of tensional element comprises:
The support spring of three fens chocks is used to prevent that three fens chocks on top from recovering;
Be connected the lid on the support spring of three fens chocks;
Be connected the cylinder body that covers;
Anchor inserts the centre bore of cylinder body and comprises three fens chocks of the single tensional element of clamping;
Fixator is made and is had tensional element by foundry goods and inserts wherein; And
The linkage that connects anchor and fixator.
2. device as claimed in claim 1 wherein in anchor, has punching and stops spring bolt at the cylinder body downside, is used for preventing that three fens chocks in that punching recovers from returning.
3. device as claimed in claim 1, wherein ground tackle has the coupling part, is connected with the linkage of cylinder body lower end.
4. device as claimed in claim 3, wherein linkage is plug, socket or the unidirectional plug that is used to connect anchor and fixator.
5. device as claimed in claim 1, wherein fixator be designed so that linkage inserts wherein and when linkage inserts wherein the coupling part be connected on the anchor.
6. device as claimed in claim 1, wherein single tensional element inserts in the fixator, forms the structure of straight anchor device.
7. device as claimed in claim 5, wherein fixator can use separately or a plurality of use together.
8. method of dismantling tensional element comprises:
To act on the anchor than the big repulsive force of confining force of the support spring of three fens chocks;
The chock support spring was compressed by the repulsive force of tensional element in three minutes;
Chock returned in the space that produces in cylinder body during the compression spring in three minutes;
It is big that the gap of three fens chocks becomes;
The returning of three fens chocks returning is supported the latch that stops spring bolt that three fens chocks return and stops;
Isolated tensional element from three minutes the chock, the decline of three fens chocks at this moment is stopped in the state of keeping the gap; And
By drawing tensional element after separating anchor, tensional element is removed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2001/52383 | 2001-08-29 | ||
| KR10-2001-0052383A KR100463269B1 (en) | 2001-08-29 | 2001-08-29 | Disjointable fixing apparatus of tension material and Removal method of tension material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1545588A CN1545588A (en) | 2004-11-10 |
| CN1240911C true CN1240911C (en) | 2006-02-08 |
Family
ID=19713678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018235506A Expired - Fee Related CN1240911C (en) | 2001-08-29 | 2001-11-21 | Disjointable fixing apparatus of tension member and removal method of tension member |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20040237431A1 (en) |
| EP (1) | EP1423570A1 (en) |
| JP (1) | JP3972992B2 (en) |
| KR (1) | KR100463269B1 (en) |
| CN (1) | CN1240911C (en) |
| WO (1) | WO2003018916A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100472135B1 (en) * | 2002-05-28 | 2005-03-08 | 박병구 | Anchor System for length control |
| KR100463267B1 (en) * | 2002-06-26 | 2004-12-23 | 박병구 | Cable removal anchor using center wire |
| KR100479569B1 (en) * | 2002-10-17 | 2005-04-06 | 박병구 | Tension member removable anchoring apparatus using of fixable-ring and controllable-board |
| US8904721B2 (en) * | 2008-06-12 | 2014-12-09 | University Of Utah Research Foundation | Anchoring, splicing and tensioning elongated reinforcement members |
| AU2009257335A1 (en) * | 2008-06-12 | 2009-12-17 | University Of Utah Research Foundation | Anchoring, splicing and tensioning elongated reinforcement members |
| KR101152265B1 (en) | 2010-04-09 | 2012-06-14 | 김성규 | Prestressed bored pile construction method and structures |
| CA2793733A1 (en) | 2010-04-13 | 2011-10-20 | The University Of Utah Research Foundation | Sheet and rod attachment apparatus and system |
| CN102677670B (en) * | 2011-03-11 | 2015-12-09 | 王立明 | One tears anchor formula recoverable anchor rod open |
| KR101303492B1 (en) | 2012-07-23 | 2013-09-03 | 손문준 | A tension and compressive complex anchor being able to give combined stress of tension stress plus compressive stress into the grout |
| CN103711507B (en) * | 2013-12-05 | 2016-10-19 | 中国矿业大学 | A kind of many steel strand wires combination supporting device controls the method for big relaxation zone roadway deformation |
| CN105442599B (en) * | 2015-11-18 | 2017-04-26 | 中国航空规划设计研究总院有限公司 | Bearing pulling anchor piece pre-buried in terrace and construction method thereof |
| CN105548001B (en) * | 2016-01-23 | 2018-11-27 | 北京航空航天大学 | A kind of pipe-seam type anchor rod scene drawing force measuring device |
| CN110887868B (en) * | 2019-11-29 | 2024-07-23 | 太原学院 | Impact monitoring and protecting device for high-temperature drawing experiment of anchoring material |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2950576A (en) * | 1956-04-25 | 1960-08-30 | Rubenstein David | Shock absorbing connections for building constructions |
| US3399434A (en) * | 1965-09-27 | 1968-09-03 | William F. Kelly | Anchors for stressed cables |
| US3405490A (en) * | 1967-01-10 | 1968-10-15 | Robert R. La Marr | Anchor structure for posttensioned tendons |
| US3965543A (en) * | 1974-11-22 | 1976-06-29 | Symons Corporation | She-bolt type gripper device for concrete wall form tie rods of indeterminate length |
| JPH04143312A (en) * | 1990-10-04 | 1992-05-18 | Nittoc Constr Co Ltd | Anchor removing method |
| US5472296A (en) * | 1992-08-20 | 1995-12-05 | Dyckerhoff & Widmann Aktiengesellschaft | Corrosion protected support element for a soil anchor or a rock anchor, a pressure pile or the like |
| JPH06116948A (en) * | 1992-10-09 | 1994-04-26 | Mitsubishi Kasei Corp | Tensionning and anchoring method of frp tendon |
| EP0659976A3 (en) * | 1993-12-23 | 1995-09-27 | Rsc Mining Proprietary Limited | A rock anchor assembly. |
| US5755065A (en) * | 1996-04-25 | 1998-05-26 | Sorkin; Felix L. | Method and apparatus for forming an anchorage of a post-tension system |
| KR100296882B1 (en) * | 1998-12-16 | 2001-08-07 | 김정열 | Fixture for anchor in ground |
| US6151850A (en) * | 1999-04-26 | 2000-11-28 | Sorkin; Felix L. | Intermediate anchorage system utilizing splice chuck |
| US6176051B1 (en) * | 1999-04-26 | 2001-01-23 | Felix L. Sorkin | Splice chuck for use in a post-tension anchor system |
| KR200242474Y1 (en) * | 2001-05-25 | 2001-10-29 | 주식회사 삼우기초기술 | anchorage device for ground anchor with removing tension member |
| KR200235095Y1 (en) * | 2001-03-23 | 2001-10-10 | 주식회사 삼우기초기술 | anchorage device for ground anchor with removing tension member |
-
2001
- 2001-08-29 KR KR10-2001-0052383A patent/KR100463269B1/en not_active IP Right Cessation
- 2001-11-21 EP EP01274453A patent/EP1423570A1/en not_active Ceased
- 2001-11-21 CN CNB018235506A patent/CN1240911C/en not_active Expired - Fee Related
- 2001-11-21 WO PCT/KR2001/001993 patent/WO2003018916A1/en not_active Application Discontinuation
- 2001-11-21 US US10/487,362 patent/US20040237431A1/en not_active Abandoned
- 2001-11-21 JP JP2003523754A patent/JP3972992B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005501190A (en) | 2005-01-13 |
| CN1545588A (en) | 2004-11-10 |
| US20040237431A1 (en) | 2004-12-02 |
| KR20020042404A (en) | 2002-06-05 |
| KR100463269B1 (en) | 2004-12-23 |
| EP1423570A1 (en) | 2004-06-02 |
| JP3972992B2 (en) | 2007-09-05 |
| WO2003018916A1 (en) | 2003-03-06 |
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