KR20110114927A - Fixing unit for removal of tension member - Google Patents
Fixing unit for removal of tension member Download PDFInfo
- Publication number
- KR20110114927A KR20110114927A KR1020100034313A KR20100034313A KR20110114927A KR 20110114927 A KR20110114927 A KR 20110114927A KR 1020100034313 A KR1020100034313 A KR 1020100034313A KR 20100034313 A KR20100034313 A KR 20100034313A KR 20110114927 A KR20110114927 A KR 20110114927A
- Authority
- KR
- South Korea
- Prior art keywords
- tension
- tension member
- hole
- wedge
- fixing unit
- Prior art date
Links
- 238000009412 basement excavation Methods 0.000 claims abstract description 33
- 230000007423 decrease Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 23
- 238000010168 coupling process Methods 0.000 claims description 21
- 238000005859 coupling reaction Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- 230000008878 coupling Effects 0.000 claims description 20
- 239000011440 grout Substances 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 16
- 238000005553 drilling Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 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
- E02D5/22—Piles
- E02D5/62—Compacting the soil at the footing or in or along a casing by forcing cement or like material through tubes
-
- 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
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
- E04C5/122—Anchoring devices the tensile members are anchored by wedge-action
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/02—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections with conical parts
- F16B7/025—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections with conical parts with the expansion of an element inside the tubes due to axial movement towards a wedge or conical element
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0001—Rubbers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The tension member removing fixing unit according to the present invention includes a wedge member that wraps the tension member with an outer diameter that decreases from one end to the other end, and compresses the tension member by external pressure; A hole is formed in the center so that the wedge member is inserted, and the diameter of the hole is made smaller so as to go from one end to the other end corresponding to the outer diameter of the wedge member so that the wedge member is inserted into the hole as the tension member is tensioned. Body member for pressing the tension member while being made; And an anti-rotation part provided between the outer surface of the wedge member and the inner surface of the body member to prevent the wedge member from being rotated with respect to the body member as the tension member rotates. It has an effect that can be easily removed by rotating the tension member to be fixed in the excavation hole.
Description
The present invention relates to a tension member removable fixing unit, and more particularly, to a tension member removable fixing unit that can be easily removed after fixing the tension member in the removable tension support for the soil nailing or ground anchors.
In general, a removable tension type supporter drills an excavation hole in the ground and inserts a tension member having a fixture mounted at one end and a wedge fastening device at the other end to apply tension to the tension member, and then to the tension member. By removing the structure is to support the ground is compacted.
At this time, the fixing member needs to have a configuration that allows the tension member to be easily removed while stably fixing the tension member in the excavation hole.
The present invention provides a tension member removal fixing unit that allows the tension member to be easily removed by rotating the tension member while stably fixing the tension member in the excavation hole with a simple structure.
The tension member removing fixing unit according to the present invention includes a wedge member that wraps the tension member with an outer diameter that decreases from one end to the other end, and compresses the tension member by external pressure; A hole is formed in the center so that the wedge member is inserted, and the diameter of the hole is made smaller so as to go from one end to the other end in correspondence with the outer diameter of the wedge member. Body member for pressing the tension member while being made; And an anti-rotation part provided between the outer surface of the wedge member and the inner surface of the body member to prevent the wedge member from rotating relative to the body member as the tension member rotates.
Also preferably, the anti-rotation part includes a pin groove provided in the longitudinal direction on the outer surface of the wedge member, a seating groove provided in the longitudinal direction at a position corresponding to the pin groove on the inner surface of the body member, the pin groove and the It characterized in that it comprises a rotation preventing pin is provided to be fitted into the seating groove.
Also preferably, the anti-rotation part may include a stopper protruding toward the body member on the outer surface of the wedge member, and a rotation prevention protruding toward the wedge member in the hole of the body member and provided to catch the stopper. Characterized in that it comprises a jaw.
Also preferably, the anti-rotation part is provided on one of the outer surface of the wedge member and the hole of the body member to protrude and provided at another one of the outer surface of the wedge member and the hole of the body member. It characterized in that it comprises a groove provided to be fitted.
Also preferably, it is characterized in that it further comprises a rotation preventing blade coupled to the coupling groove provided on the outer surface of the body member to protrude to the outside of the body member to prevent the body member from rotating.
On the other hand, the tension member removal fixing unit according to another embodiment of the present invention, the wedge member for wrapping the tension member having an outer diameter that becomes smaller from one end to the other end, and compresses the tension member by the external pressure; A hole is formed in the center so that the wedge member is inserted, and the diameter of the hole is made smaller so as to go from one end to the other end corresponding to the outer diameter of the wedge member so that the wedge member is inserted into the hole as the tension member is tensioned. Body member for pressing the tension member while being made; And fixed to the bottom of the excavation hole to be fixedly coupled to the body member, and to expose the bottom of the body member to a space of a predetermined size so that the wedge member is separated from the hole of the body member when the tension member is removed. Includes settlement housing that makes it possible.
Also preferably, the wedge member, a plurality of wedges formed on the inner surface of the wedge-shaped tooth structure for the friction with the tension member is formed so that each is independently of each other can be easily separated when removing the tension member. Characterized in that it comprises a.
Also preferably, an elastic ring is inserted into the tension member to support the lower ends of the plurality of wedges and supports the wedge member so as not to be separated from the hole of the body member when the tension member removal fixing unit is inserted into the excavation hole. It characterized in that it further comprises.
Also preferably, the tension member is protected by being wrapped in a protective tube, and inserted into the tension member and provided between the body member and the protective tube so that the elastic ring inserted in the tension member does not flow into the protective tube when the tension member is removed. It further comprises a washer to prevent.
Also preferably, the fixing housing may provide a housing coupling portion coupled to the body member and a space having a predetermined size at which a lower end of the body member coupled to the housing coupling portion is exposed and the body is removed when the tension member is removed. And a housing space for accommodating the wedge member separated from the hole of the member.
Also preferably, the body member further comprises a body screw portion formed on its outer surface, the housing coupling portion of the fixing housing is characterized in that it comprises a housing screw portion screwed with the body screw portion.
Also preferably, the fixing housing may further include a housing groove formed on an outer surface thereof to increase friction with the grout material filled in the excavation hole.
On the other hand, the tension member removal fixing unit according to another embodiment of the present invention, a plurality of wedge members surrounding each of the plurality of tension members to compress the tension member by an external pressure; A hole is formed in the center so that the wedge member is inserted, and the diameter of the hole is made smaller so as to go from one end to the other end in correspondence with the outer diameter of the wedge member. A plurality of body members provided to compress each of the plurality of tension members; And fixed to the bottom of the excavation hole and fixedly coupled to the plurality of body members to expose the bottom of the plurality of body members to a space of a predetermined size so as to be separated from each hole of the plurality of body members when the tension member is removed. And a multiple coupling fusing housing for receiving the plurality of wedge members.
Also preferably, the multi-coupling fixing housing may provide a space having a predetermined size in which multiple coupling parts to which each of the plurality of body members are coupled and lower ends of the plurality of body members coupled to the multiple coupling parts are exposed. And a housing space for accommodating the plurality of wedge members separated from the holes of each of the plurality of trunk members when the tension member is removed.
The tension member removal fixing unit according to the present invention has an effect that the structure is simple and the tension member can be easily removed by rotating the tension member while stably fixing the tension member in the excavation hole.
1 is a side cross-sectional view schematically showing a tension member removable fixing unit according to an embodiment of the present invention.
2 to 6 is a schematic diagram showing a process of forming a removable tensile support using the tension member removal fixing unit according to the embodiment shown in FIG.
Figure 7 is a side cross-sectional view schematically showing a tension member removable fixing unit according to another embodiment of the present invention.
Figure 8 is a side cross-sectional view schematically showing a tension member removable fixing unit according to another embodiment of the present invention.
Figure 9 is a perspective view schematically showing a tension member removable fixing unit according to another embodiment of the present invention.
10 to 14 is a schematic diagram showing a process of tensioning and removing the tension member using the tension member removal fixing unit according to the embodiment shown in FIG.
15 is a perspective view schematically showing a tension member removable fixing unit according to another embodiment of the present invention.
An embodiment of a tension member removing fixing unit according to the present invention will be described in more detail with reference to the accompanying drawings.
First, with reference to FIGS. 1 and 2 will be described with respect to the tension member removal fixing unit according to an embodiment of the present invention.
1 is a side cross-sectional view schematically showing a tension member removable fixing unit and a tension support using the same according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the mounting unit shown in FIG. Drawing.
As shown in FIG. 1, after drilling the excavation hole (H) in a predetermined ground (地盤, G) requiring tension, the excavation hole (H), the
The
When tensioning the
Since the
The tension member
As shown in Figure 1 and 2, the
The
The
That is, when the
On the other hand, the anti-rotation portion is provided between the outer surface of the
There are a number of specific embodiments of the anti-rotation unit, among which FIG. 1 and FIG. 2 illustrate a case where the
That is, in the embodiment illustrated in FIGS. 1 and 2, the anti-rotation part includes a
The
As shown in FIG. 2, the
In addition, the shape of the
On the other hand, as shown in Figure 1 and 2
That is, when the
The
On the other hand, the outer surface of the
On the other hand, with reference to Figures 3 to 6 will be described the operation of the tension member removable fixing unit according to the embodiment shown in Figures 1 and 2.
First, as shown in FIG. 3, an excavation hole H is drilled in the ground G, and the fixing unit according to the present invention is inserted into the excavation hole H in one state of the
At this time, the
The
The outer diameter of the
Meanwhile, as shown in FIG. 4, after the
After the grout material is cured, the
At this time, the
Meanwhile, as shown in FIG. 5, after the tension of the
In this case, the
In addition, since the
Therefore, the
Since the static friction force between the
Therefore, as shown in FIG. 6, the
On the other hand, with reference to Figures 7 and 8 will be described with respect to the tension member removal fixing unit according to another embodiment of the present invention.
7 and 8 show various examples of the anti-rotation part of the tension member removing fixing unit according to the present invention.
First, referring to FIG. 7, a tension member-removable fixing unit according to another embodiment of the present invention will be described.
As shown in FIG. 7, the tension removing member fixing unit according to another embodiment of the present invention includes a
The
Therefore, when the
In the embodiment shown in Figure 7 except for the portion related to the anti-rotation portion is substantially the same configuration as the embodiment shown in Figure 1 will be omitted a detailed description.
8, the case where the protrusion part P and the groove part R are provided as a rotation prevention part is shown.
As shown in FIG. 8, the outer surface of the
Therefore, when the
In the embodiment shown in Figure 8 except for the portion associated with the anti-rotation portion is substantially the same configuration as the embodiment shown in Figure 1 will not be described in detail.
Although not shown in the drawings, the protrusion P and the groove R shown in FIG. 8 may be provided oppositely.
That is, the
Even in this case, the protrusion may be fitted into the groove to prevent the
On the other hand, with reference to Figures 9 and 10 will be described with respect to the tension member removal fixing unit according to another embodiment of the present invention.
As shown in FIG. 9, the tension removing member fixing unit according to another embodiment of the present invention includes a
9 and 10, the
The wedge member is composed of a plurality of
The
The
That is, when the
The outer surface of the
On the other hand, the fixing
The housing coupling portion may exist in various ways. In this embodiment, the housing coupling portion is shown as a
The housing coupling portion may be provided as a
On the other hand, the outer surface of the fixing
The tension member removal fixing unit according to the present embodiment is preferably used in a state in which the
That is, as shown in Figure 9 and 10, the
The
By enclosing the
In addition, it is preferable to provide a pressure-bearing
On the other hand, the tension member removal fixing unit according to the present embodiment is preferably to include a
The
The
The
On the other hand, the
That is, when the grout material is filled into the excavation hole (H), the grout material is introduced into the
Hereinafter, with reference to Figures 10 to 14 will be described with respect to the tension and removal method of the tension member using the tension member removal fixing unit according to this embodiment.
First, as shown in FIG. 10, the drilling hole (H) is drilled to insert the fixing unit together with the tension member (10) into the drilling hole (H).
That is, assembling each of the components as shown in Figure 9 is inserted into the excavation hole (H), as shown in Figure 10, by placing the
Then, the
On the other hand, after the fixing unit is inserted into the excavation hole (H), the grout material is filled into the excavation hole (H) as shown in FIG. Then grout the grout material.
After the grout material is cured, a tensioner (not shown) is used to tension the
At this time, the
Meanwhile, after the
For example, the ground support work by the Soil Nailing method during construction or civil works is performed by tensioning the tension member with the tensioner using the fixing unit as described above, and after the construction is completed, the
As shown in FIG. 12, the tensile force received when the
That is, when the
That is, in the situation where the
When the pressure of the
Therefore, the
And as shown in FIG. 14, the
Meanwhile, when the
By the process as described above it is possible to easily tension and remove the tension member by using the tension member removal fixing unit according to this embodiment.
On the other hand, as described above, as well as the Soil Nailing (Soil Nailing) method using a
That is, FIG. 15 shows an embodiment of a case in which a tension member-removable fixing unit is constructed by using a plurality of
As shown in FIG. 15, the tension member removing fixing unit using the plurality of
It will be described in more detail with respect to the tension member removable fixing unit according to the embodiment shown in FIG.
As shown in FIG. 15, the
The
Although not shown in the drawings, a housing space portion having a predetermined size is also provided inside the
Tensile and removal of each
Claims (15)
A wedge member that wraps the tension member with an outer diameter that decreases from one end to the other end, and compresses the tension member by external pressure;
A hole is formed in the center so that the wedge member is inserted, and the diameter of the hole is made smaller so as to go from one end to the other end in correspondence with the outer diameter of the wedge member. Body member for pressing the tension member while being made; And
An anti-rotation part provided between an outer surface of the wedge member and an inner surface of the body member to prevent the wedge member from rotating relative to the body member as the tension member rotates;
Tension material removal type fixing unit comprising a.
Pin grooves provided in the longitudinal direction on the outer surface of the wedge member,
A seating groove provided in a longitudinal direction at a position corresponding to the pin groove on an inner surface of the body member;
And a rotation preventing pin provided to be fitted into the pin groove and the seating groove.
A stopper protruding toward the body member on an outer surface of the wedge member;
And a rotation preventing jaw provided to protrude toward the wedge member in the hole of the body member and to stop the stopper.
A protrusion protruding from one of the outer surface of the wedge member and the hole of the body member;
And a groove portion provided at another one of the outer surface of the wedge member and the hole of the body member so that the protrusion is fitted therein.
And a rotation preventing blade coupled to a coupling groove provided on an outer surface of the body member to protrude outward of the body member to prevent the body member from rotating.
A wedge member that wraps the tension member with an outer diameter that decreases from one end to the other end, and compresses the tension member by external pressure;
A hole is formed in the center so that the wedge member is inserted, and the diameter of the hole is made smaller so as to go from one end to the other end in correspondence with the outer diameter of the wedge member. Body member for pressing the tension member while being made; And
The wedge member is fixed to the bottom of the excavation hole and fixedly coupled with the body member, and the bottom of the body member is exposed to a space of a predetermined size so that the wedge member is separated from the hole of the body member when the tension member is removed. Settling housings that enable
Tensile material removal type fixing unit comprising a.
Wedge-shaped tooth structure for the friction with the tension member is formed on the inner surface of the tension member removal characterized in that it comprises a plurality of wedges each provided independently of each other provided to be easily separated upon removal of the tension member. Fusing unit.
It is inserted into the tension member is provided to support the lower end of the plurality of wedges, further comprising an elastic ring for supporting the plurality of wedges from being separated from the hole of the body member when the tension member removal fixing unit is inserted into the drilling hole Tension material removal type fixing unit, characterized in that.
The tension member is protected by being wrapped in a protective tube,
And a washer inserted into the tension member and provided between the body member and the protective tube to prevent the elastic ring inserted into the tension member from flowing into the protective tube when the tension member is removed. unit.
And a cover provided to cover a part or all of the top of the body member to prevent the grout material from flowing into the body member when the grout material is filled into the excavation hole.
A housing coupling part coupled to the body member;
And a housing space portion for providing a space having a predetermined size to which a lower end of the body member coupled to the housing coupling portion is exposed, and accommodating the wedge member separated from the hole of the body member when the tension member is removed. Tension removal type fixing unit.
The body member further includes a body screw formed on the outer surface,
The housing coupling portion of the fixing housing comprises a housing screw portion screwed to the body screw portion, the tension member removable fixing unit.
And a housing groove formed on an outer surface thereof to increase friction with the grout material filled in the excavation hole.
A plurality of wedge members surrounding each of the plurality of tension members and compressing the tension members by external pressure;
A hole is formed in the center so that the wedge member is inserted, and the diameter of the hole is made smaller so as to go from one end to the other end in correspondence with the outer diameter of the wedge member. A plurality of body members provided to compress each of the plurality of tension members; And
It is fixed to the bottom of the excavation hole and fixedly coupled to the plurality of body members, the bottom of the plurality of body members are exposed to a space of a predetermined size is separated from each hole of the plurality of body members when removing the tension member A multiple coupling fusing housing accommodating the plurality of wedge members;
Tensile material removal type fixing unit comprising a.
A multiple coupling portion to which each of the plurality of body members is coupled;
A housing space for providing a space having a predetermined size at which lower ends of the plurality of body members coupled to the multiple coupling part are exposed, and accommodating the plurality of wedge members separated from each hole of the plurality of body members when the tension member is removed. Tension material removal type fixing unit comprising a portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100034313A KR20110114927A (en) | 2010-04-14 | 2010-04-14 | Fixing unit for removal of tension member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100034313A KR20110114927A (en) | 2010-04-14 | 2010-04-14 | Fixing unit for removal of tension member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20110114927A true KR20110114927A (en) | 2011-10-20 |
Family
ID=45029726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020100034313A KR20110114927A (en) | 2010-04-14 | 2010-04-14 | Fixing unit for removal of tension member |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20110114927A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017039297A1 (en) * | 2015-08-31 | 2017-03-09 | 주식회사 티앤테크 | Expandable ground reinforcement apparatus used in removable soil-nailing method |
| KR102001399B1 (en) * | 2018-12-19 | 2019-07-18 | 주식회사 유테크 | Rebar coupler with improved assemblability |
| KR20190093311A (en) * | 2018-02-01 | 2019-08-09 | 주식회사 서린디앤씨 | Removable anchor |
-
2010
- 2010-04-14 KR KR1020100034313A patent/KR20110114927A/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017039297A1 (en) * | 2015-08-31 | 2017-03-09 | 주식회사 티앤테크 | Expandable ground reinforcement apparatus used in removable soil-nailing method |
| KR20190093311A (en) * | 2018-02-01 | 2019-08-09 | 주식회사 서린디앤씨 | Removable anchor |
| KR102001399B1 (en) * | 2018-12-19 | 2019-07-18 | 주식회사 유테크 | Rebar coupler with improved assemblability |
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| N231 | Notification of change of applicant | ||
| N231 | Notification of change of applicant | ||
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |