KR20140101483A - Apparatus for holding a wire strand of anchor - Google Patents
Apparatus for holding a wire strand of anchor Download PDFInfo
- Publication number
- KR20140101483A KR20140101483A KR1020130014343A KR20130014343A KR20140101483A KR 20140101483 A KR20140101483 A KR 20140101483A KR 1020130014343 A KR1020130014343 A KR 1020130014343A KR 20130014343 A KR20130014343 A KR 20130014343A KR 20140101483 A KR20140101483 A KR 20140101483A
- Authority
- KR
- South Korea
- Prior art keywords
- sleeve
- strands
- anchor
- packer
- grout
- Prior art date
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
-
- 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
-
- 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
- E02D2200/00—Geometrical or physical properties
- E02D2200/14—Geometrical or physical properties resilient or elastic
Abstract
The present invention relates to an anchor steel strand holding device capable of imparting a tensile force over the entire length of strands by supporting the strands of the anchor at the position passing through the sleeve of the underground continuous wall in a central portion of the order packer, .
A steel wire holding apparatus for an anchor according to the present invention comprises: a sleeve inclined to an underground continuous wall; a perforation hole which is inclined to the ground and penetrates through the sleeve to a predetermined depth; Wherein the grouting hose is made of a single bundle of strands and two or more strands of strands each having an anchor body at one end thereof, and strands of the anchor which is an internal space of the sleeve and grout hoses, And an auger packer having a tube shape and a through hole formed at a central portion thereof. The stiffeners and the grout hose of the anchor are positioned at the lower floor of the secondary packer and the sleeve at a position in contact with the secondary packer in the inner space of the sleeve. So that the stiffener preventing member is provided.
Description
BACKGROUND OF THE
As widely known, the construction of the diaphragm walls or slurry walls constructions for the trenching works is mainly used to prevent the collapse of the section and the penetration of the groundwater, Because it is used for earth wall, it is easy to maximize the land utilization rate according to the progress of construction technology and equipment, and it is possible to form a safe wall with high rigidity with low vibration and low noise in a densely populated area in urban areas. It is also used as a wall.
Such an underground continuous wall method uses a stabilizing liquid such as bentonite to prevent the collapse of the excavation wall while excavating a trench of a predetermined shape in the ground, inserting a reinforcing net thereon, pouring concrete and curing Continuously construct an underground continuous wall.
In this way, the underground continuous wall is constructed as a shape for the trenching work, and then the trenches inside the partitioned by the underground continuous wall are dug out and carried out. At this time, the support structure for supporting the lateral earth pressure of the underground continuous wall is strongly supported Construction. A strut support system and an anchor support system are used for such a support structure.
As shown in FIG. 1, the anchor support system is a structure in which a straight sleeve (2) for building a perforation hole (1) is slantingly provided at a predetermined angle in a reinforcing network of an underground continuous wall
At this time, the sleeve (2) is provided with a packer (7) for cutting off the water flowing through the perforation hole (1) in the ground. This order packer (7) is a double tube type in which both ends are clogged, and a through hole is formed in the center portion thereof.
The
As the
However, according to the conventional anchor supporting method, the stranded
In this state, the grout is pushed and cured in the
Since the upper ends of the stranded
It is also more likely to be tense only at the strand portion located between the
In addition, in the conventional anchor supporting system, the grout is not uniformly injected into the
Particularly, in the conventional anchor supporting system, since the
In addition, since the
Disclosure of the Invention The present invention has been researched in order to overcome the above-mentioned problems, and it is an object of the present invention to provide a method for preventing the collapse of stranded wires and grout hoses in the under- And to provide a uniform tensioning force over the entire length of the strands of the anchor.
In addition, since the present invention is a structure in which the air gap preventing member is disposed on the outer main surface of each strand and the grout hose and is disposed in the through hole of the secondary packer, when the strands are inserted into the through hole of the secondary packer, Which is elastically deformed while the outer surfaces of the anchors are in contact with each other, thereby preventing voids from being generated between the outer major surfaces of the strands.
According to another aspect of the present invention, there is provided an apparatus for holding a strand of an anchor, the apparatus comprising: a sleeve disposed obliquely to an underground continuous wall; a perforation hole sloped along the sleeve to a predetermined depth; And an anchor having one or more strands and one strut hose each having an anchor body at one end thereof inserted into the lower end of the anchor, and a strut of the anchor, which is an inner space of the sleeve, and a grout hose And an auger packer having a double tube shape with both ends closed and having a through hole formed at the center thereof, wherein the strands of the anchor and the grout hose are inserted into the inner space of the sleeve, And a stiffening member to prevent the bottom of the sleeve from falling down. .
The strand deflection preventing member is characterized by having an outer supporting surface supported and held in contact with an inner main surface of the sleeve and an inner supporting surface for supporting the strands and the grout hose in a position close to the central axis line of the sleeve .
And the central axis of the inner supporting surface is located on the same line as the central axis of the sleeve.
The stranded wires and the grout hose at a position passing through the through hole of the order packer are provided with an air gap preventing member for preventing the generation of air gap between the stranded wires and the outer major surface generated while contacting the grout hose, And is made of an elastic material which is elastically deformed when it is pressed against the strands and the grout hose.
The gap preventive member has a three-dimensional structure in which an insertion hole is formed at a central portion thereof, and a stranded wire or a grout hose is inserted and coupled to the insertion hole of the gap prevention member.
And the air gap preventing member is made of a porous elastic material such as sponge or urethane.
According to the present invention, stranded wires and grout hoses in the sleeve of the underground continuous wall are positioned at the center of the ordering packer by a stranded wire deflection preventing member to prevent sagging to the bottom of the sleeve, Not only can uniform tension be applied over the entire length of the strands, but also facilitates the removal of strands after reinforcing the underground continuous wall.
In addition, since the present invention is a structure in which the air gap preventing member is disposed on the outer main surface of each strand and the grout hose and is disposed in the through hole of the secondary packer, when the strands are inserted into the through hole of the secondary packer, It is possible to prevent voids from being generated between the outer major surfaces of stranded wires due to the elastic deformation of the outer surfaces of the baffle plates, So that the strands can effectively prevent the warping in the through hole of the ordering packer, so that the fixing of the strands can be made very firm.
1 is a view showing a state in which a strand is installed in a sleeve in an anchor supporting method of an underground continuous wall according to the prior art.
2 is a cross-sectional view illustrating a strand holding apparatus according to an embodiment of the present invention.
3 is an exploded perspective view showing a state in which a sleeve, an order packer, a strand wire coupled with a gap preventing member, and the like of the strand holding device according to the present invention are separated.
4 is a cross-sectional view taken along the line AA in Fig.
5 is a cross-sectional view taken along the line BB in Fig.
6 is a view illustrating various possible embodiments of the gap preventing member used in the strand holding apparatus according to the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For reference, the size, line thickness, and the like of the components shown in the drawings referred to in describing the present invention may be somewhat exaggerated for ease of understanding. It is to be understood that the terms used in the description of the present invention are defined in consideration of the functions of the present invention and thus may vary depending on the user, the intention of the operator, customs, and the like, I will do it.
2 to 5 show a strand holding apparatus according to the present invention.
The apparatus for holding the strand of an anchor according to the present invention is characterized in that after the construction of the underground
2 to 4, an apparatus for holding a strand of an anchor according to the present invention includes a
A
The
The bundle of
As the
The strand
The strand
When the bundle of
4, the
It is preferable that the strand
Since the strand
The
The air
As shown in FIGS. 4 and 5, the air
In addition, the grooved grooves of the air
As shown in FIG. 3, the gap
On the other hand, the
The
A
Thereafter, the
In this state, when the
After the grout of the
After the grout in the
In this way, since the stranded
While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .
10: Sleeve 11: Flange
20: order packer 21: through hole
24: grout 30: stiffening line deflection member
31: outer supporting surface 32: inner supporting surface
40: Anchor 41: Stranded wire
42: anchor body 50: air gap preventing member
51: insertion hole 52: outer surface
Claims (6)
And a strand break preventing member for supporting the strands of the anchor and the grout hose so as not to be squeezed to the lower floor of the sleeve is provided at a position in contact with the order packer in the inner space of the sleeve.
Wherein the strand deflection preventing member has an outer supporting surface supported and held in contact with an inner main surface of the sleeve and an inner supporting surface for supporting the strands so as to be positioned close to the central axis of the sleeve, .
Wherein the stranded wires and the grout hose at a position passing through the through hole of the order packer are provided with an air gap preventing member for preventing air gap between the stranded wires and the outer major surface generated when the grout hose contacts with the stranded wire. Device.
Wherein the bore prevention member is made of an elastic material which is elastically deformed when it is engaged with each of the stranded wires and the outer main surface of the grout hose and makes contact with each other.
Wherein the gap preventive member has a sloped structure in which an insertion hole is formed at a central portion thereof, and a stranded wire is inserted and coupled to the insertion hole.
Wherein the gap preventing member is made of a porous elastic material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130014343A KR20140101483A (en) | 2013-02-08 | 2013-02-08 | Apparatus for holding a wire strand of anchor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130014343A KR20140101483A (en) | 2013-02-08 | 2013-02-08 | Apparatus for holding a wire strand of anchor |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20140101483A true KR20140101483A (en) | 2014-08-20 |
Family
ID=51746805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020130014343A KR20140101483A (en) | 2013-02-08 | 2013-02-08 | Apparatus for holding a wire strand of anchor |
Country Status (1)
Country | Link |
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KR (1) | KR20140101483A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109339095A (en) * | 2018-11-26 | 2019-02-15 | 中国冶集团有限公司 | Retaining wall drainage system and its wall carry on the back loaded filter construction method |
CN111779005A (en) * | 2020-07-23 | 2020-10-16 | 马鞍山斯博尔机械技术服务有限公司 | Slope supports reinforcement equipment for geotechnical engineering |
CN113463657A (en) * | 2021-07-15 | 2021-10-01 | 北京地矿工程建设有限责任公司 | Underwater anchor cable construction process |
-
2013
- 2013-02-08 KR KR1020130014343A patent/KR20140101483A/en not_active Application Discontinuation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109339095A (en) * | 2018-11-26 | 2019-02-15 | 中国冶集团有限公司 | Retaining wall drainage system and its wall carry on the back loaded filter construction method |
CN109339095B (en) * | 2018-11-26 | 2021-04-02 | 中国一冶集团有限公司 | Retaining wall drainage system and wall back inverted filter layer construction method thereof |
CN111779005A (en) * | 2020-07-23 | 2020-10-16 | 马鞍山斯博尔机械技术服务有限公司 | Slope supports reinforcement equipment for geotechnical engineering |
CN113463657A (en) * | 2021-07-15 | 2021-10-01 | 北京地矿工程建设有限责任公司 | Underwater anchor cable construction process |
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