KR200481040Y1 - Testing and granting apparatus of tensile force for ground anchor - Google Patents

Testing and granting apparatus of tensile force for ground anchor Download PDF

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Publication number
KR200481040Y1
KR200481040Y1 KR2020160001222U KR20160001222U KR200481040Y1 KR 200481040 Y1 KR200481040 Y1 KR 200481040Y1 KR 2020160001222 U KR2020160001222 U KR 2020160001222U KR 20160001222 U KR20160001222 U KR 20160001222U KR 200481040 Y1 KR200481040 Y1 KR 200481040Y1
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KR
South Korea
Prior art keywords
tension
tensile
coupled
casing
tensile force
Prior art date
Application number
KR2020160001222U
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Korean (ko)
Inventor
김홍기
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김홍기
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Application filed by 김홍기 filed Critical 김홍기
Priority to KR2020160001222U priority Critical patent/KR200481040Y1/en
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    • 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
    • E02D1/00—Investigation of foundation soil in situ
    • 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
    • E02D17/20—Securing of slopes or inclines
    • E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
    • E02D29/0233—Retaining or protecting walls comprising retention means in the backfill the retention means being anchors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The present invention relates to a tension anchor testing apparatus for a ground anchor, more particularly, to a method of testing a tensile force of a tensile material provided on a ground anchor and confirming a tensile state of the tensile force applied to the ground anchor, And more particularly, to a tensile strength test apparatus and a tensile test apparatus.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a tension anchor for a ground anchor,

The present invention relates to a tension anchor testing apparatus for a ground anchor, more particularly, to a method of testing a tensile force of a tensile material provided on a ground anchor and confirming a tensile state of the tensile force applied to the ground anchor, And more particularly, to a tensile strength test apparatus and a tensile test apparatus.

Generally, ground anchors are designed to connect civil or architectural structures to ground with tensile materials such as stranded wires and to apply restraining force or forward load to the structure in the horizontal direction or vertical direction. They can be applied to soil walls, transmission tower bases, .

The ground anchor is formed by piercing the ground to form an anchor hole, inserting an anchor body and a tension portion including a tensile material into the anchor hole, curing the material by injecting grout, and then applying anchor to the tensile material exposed in the ground To form a film.

However, since the ground anchor may lose its tensile strength due to long-term use or displacement of the ground, it is necessary to test the tensile force of the tensile material by a tensile device at a certain point of time and check the tensile strength thereof.

Korean Patent Publication No. 10-684387 discloses a tensioning apparatus and method for an earth anchor.

However, such a conventional tensioning device has a problem that it is difficult to easily check the tensile strength loss of the tensile material when the length of the tensile material exposed in the ground is short.

Korean Registered Patent No. 10-684387 (February 22, 2007)

It is an object of the present invention to provide a ground anchor for testing a tensile force of a tensile material provided on a ground anchor and confirming a tensile state of the tensile material and a ground anchor for applying a tensile force to the tensile material, And to provide a tensile force test and application device.

The problems to be solved by the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

In order to achieve the above-mentioned object, the present invention provides a method of manufacturing an apparatus, comprising: a tensile material having one end inserted into a ground and the other end exposed from the ground; A pliable plate passing through the other end of the tensile material and contacting the ground; And a tensile force head which is fixed to the outside of the tensile material so as to be positioned between the other end of the tensile material and the pressure plate and has a circular circumference and one end surface of which contacts the pressure plate and does not form an empty space between the pressure plates. And a tensile force testing and applying device for imparting a necessary tensile force according to the test, the fixing part being coupled to the tensile force head; A tension bar having both ends, a threaded portion formed on an outer peripheral surface of both end portions thereof, and one end portion being coupled to the fixed portion; And tensioning means for tensioning the tension bar to cause the fastening portion to move in the direction of the other end of the tension bar with the tension bar, wherein the fastening portion has both ends open and one end coupled to the outside of the tensioning head A first casing in which a thread is formed on an inner peripheral surface of the other end; A compression ring coupled between the first housing and the tension head to couple the first casing to the tension head; And a screw thread is formed on an outer peripheral surface of the one end portion and is drawn into the first housing and is screwed to the first housing and a thread is formed on the inner peripheral surface of the other end portion so as to be threadedly engaged with the one end portion of the tension bar, And a second casing for connecting the tension bar, wherein the compression ring is branched into a pair of compression units extending at both ends in the longitudinal direction of the tension member and wrapping both sides thereof about the longitudinal direction of the tension head The present invention provides a tensile strength test apparatus for a ground anchor.

The tension bar further includes a pressure member screwed to the other end of the tension bar, wherein the tension means includes a hydraulic cylinder coupled to the tension bar to be positioned between the fixed portion and the pressure member, A housing having first and second inlet and outlet portions through which oil pressure flows in from the outside or oil pressure is discharged from the housing; and both ends of the housing are opened and coupled to the outside of the tension bar, And a cylinder rod that presses or pressurizes the pressure member while being raised or lowered in accordance with the oil pressure flowing in or out.

The ground anchor according to the present invention further includes a support portion coupled to the tension bar and supporting the tension means from the support plate.

According to the present invention, the first casing is formed such that an inner circumferential surface thereof, which is in contact with the compression ring, has a smaller inner diameter from the other end of the first casing toward the one end, and the compression ring has a length And is formed so as to be smaller in outer diameter from the other end to the one end.

The ground anchor according to the present invention further includes a cover coupled to the pressure plate and covering the tension head and the other end of the tension member, wherein the fixing portion is coupled to the tension head in a state of separating the cover from the pressure plate. .

According to the present invention, the tensile force of the tensile material provided on the ground anchor can be tested to confirm the tensile state thereof, and tensile force can be applied to the tensile material as necessary.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

1 and 2 are an exploded perspective view and a perspective view showing a tensile force testing apparatus for a ground anchor according to the present invention.
3 is a side view partially showing a ground anchor according to the present invention.
Fig. 4 is a state diagram showing an apparatus for testing an inner tension for a ground anchor according to the present invention. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to Figs. 1 to 4, a tension testing and applying device (hereinafter referred to as "testing apparatus") 1 for a ground anchor according to the present invention has a structure in which one end is inserted into a ground 200, And a tensile force head 120 fixed to the other end of the tensile material 110. The tensile strength test apparatus of the ground anchor 100 includes: A tensile bar 20 having both ends and one end connected to the fixing part 10 and a tensile bar 20 for providing the tensile bar 20 with the tensile bar 20, (30) for moving the tension bar (20) in the direction of the other end of the tension bar (20).

Herein, it can be understood that the tensile material 110 has one end directed downward and the other end directed upward.

The ground anchor 100 is connected to the pressure plate 130 located between the ground 200 and the tension head 120 and the tension head 120 coupled with the tension head 120, And a cover 140 covering the other end of the tensile material 110 exposed to the outside.

The tensile force head 120 is fixed to the outer side of the tensile material 110 so as to be positioned between the other end of the tensile material 110 and the pressure plate 130 and has a circular periphery, It is preferable not to form an empty space between the pressure plates 130.

The tensile material 110 may include a PC steel wire or the like, and may be made of a single material or a plurality of materials.

The tensile material 110 may protrude from the tensile force head 120 by a predetermined length and may have a length sufficient to allow the cover 140 to be coupled to the tensile force head 120.

Since the ground anchor 100 is already known and used, detailed description thereof will be omitted.

The test apparatus 1 tests the tensile force of the ground anchor 100 in a state where the cover 140 is detached from the tensile force head 120. When the tensile force of the ground anchor 100 is tested, Lt; RTI ID = 0.0 > tensile < / RTI >

The fixing unit 10 includes a first casing 11 having both ends thereof opened and coupled to the outside of the tensile force head 120 and a second casing 11 coupled to the first casing 11 and the tensile force head 120 A compression ring 12 for coupling the first casing 11 to the tension head 120 and a second casing 13 for connecting the first casing 11 and the tension bar 20 to each other.

It is needless to say that the first casing 11 is formed in a cylindrical shape having both end portions thereof opened, and both end portions thereof are formed longer than the width of the tensile force head 120.

The first housing 11 is formed in such a manner that a lower inner circumferential surface of the first casing 11 which is in contact with the compression ring 12 about the center portion is reduced in diameter from the other end of the first casing 11 toward the one end, It is preferable that a thread is formed on the surface.

Preferably, both ends of the compression ring 12 extend in the longitudinal direction of the tensile material 110, and the outer diameter of the compression ring 12 decreases from the other end to the one end.

The bonding ring 12 may be branched into a pair of compression units 12a that cover both sides of the tensioning head 120 about the longitudinal direction of the tensioning head 120.

 The compression ring 12 is fitted between the first casing 11 and the tension head 120 so that the first casing 11 can be stably coupled to the tension head 120.

The second casing 13 has both ends extended in the longitudinal direction of the tensile material 110. The outer surface of one end of the second casing 13 is threaded to be screwed with the first casing 11 and threaded on the inner surface of the other end do.

Both ends of the tension bar 20 extend in the longitudinal direction of the tensile member 110 and are threaded on the outer circumferential surface of one end so as to be screwed to the other end of the second casing 13.

The tension bar 20 is threaded on the outer circumferential surface of the other end and the testing device 1 is screwed to the other end of the tension bar 20 and the tensile bar 20 20) of the pressing member (40).

The tensioning means 30 includes a hydraulic tensioning cylinder 35 which is coupled to the tensioning bar 20 so as to be positioned between the fixing portion 10 and the urging member 40.

The hydraulic tensioning cylinder 35 includes a housing 31 having first and second inlet and outlet portions 32 and 33 through which hydraulic pressure is introduced from the outside or hydraulic pressure is discharged from the outside and the inside of the housing 31 And a cylinder rod 34 which is moved up and down according to a hydraulic pressure flowing into and out of the housing 31 and is coupled to the outside of the tension bar 20 by opening both ends.

The tension bar 20 is threaded on the outer circumferential surface of the other end and the test apparatus 1 is screwed to the other end of the tension bar 20, 34 which press or release the pressing force.

The pressing member 40 has a ring shape in which both ends are opened, and a thread is formed on the inner circumferential surface of the pressing member 40 and is screwed to the other end of the tension bar 20.

At this time, the testing apparatus 1 may further include a support portion 50 coupled to the tension bar 20 and supporting the tension means 30.

The supporting unit 50 includes a support frame 51 having both ends thereof opened and coupled to the outside of the tension bar 20 and having one end seated on the support plate 130 and extending from one end thereof toward the other end, And a support plate 52 connected to the other end of the support frame 51 and having both ends opened to communicate with the support frame 51 and on which the tensioning means 30 is seated.

The support frame 51 is provided with a pair of projection ports 53 for confirming the engagement state of the fixing part 10 from one end to the other end and has a handle 54 May be formed.

A method of testing the tensile force of the ground anchor 100 using the testing apparatus 1 will be described in detail. First, the method of testing the tensile force of the ground anchor 100 is performed by first moving the cover 140 provided on the ground anchor 100, (130).

The tension bar 20 is engaged with the fixing part 10 after the fixing part 10 is coupled to the tension head 120 with the cover 140 removed.

When the tension bar 20 is coupled to the fixing portion 10, the support portion 50 is coupled to the outside of the tension bar 20 so that the support portion 50 is seated on the pressure plate 130.

When the support part 50 is seated on the support plate 130, the tension member 30 is coupled to the tension bar 20 and then the pressing member 40 is coupled to the other end of the tension bar 20 . Here, it is preferable that the pressing member (40) is positioned so as to be in contact with the cylinder rod (34).

The cylinder rod 34 presses the pressing member 40 in accordance with the driving of the tensioning means 30 so that the tension rod 20 connected to the pressing member 40, A tensile force is applied to the fixing bar 10.

The tensile force head 120 coupled to the fixed bar 10 is raised and lowered according to tensile strength of the tensile material 110, and the tensile force is reinforced.

Through the above process, the testing apparatus 1 can test the tensile force of the tensile material 120 to check the tensile strength of the tensile material 120, and apply a tensile force to the tensile material 120, if necessary.

It is to be understood that the present invention is not limited to the above-described embodiment, but may be modified in various ways as will be apparent to those skilled in the art, Without departing from the spirit of the present invention, anyone skilled in the art will appreciate that there is a technical spirit of the present invention to the extent that various modifications can be made.

1: Test apparatus 10: Fixing unit
11: first casing 12: compression ring
12a: Compression unit 13: Second casing
20: tension bar 30: tension means
31: housing 32: inlet
33: discharge portion 34: cylinder rod
35: inflow type tensile cylinder 40: pressure member
50: support part 51: support frame
52: support plate 53:
54: Handle 100: Ground anchor
110: tensile material 120: tensile force head
130: Plate 140: Cover

Claims (5)

One end is inserted into the ground and the other end is exposed from the ground; A pliable plate passing through the other end of the tensile material and contacting the ground; And a tensile force head which is fixed to the outside of the tensile material so as to be positioned between the other end of the tensile material and the pressure plate and has a circular circumference and one end surface of which contacts the pressure plate and does not form an empty space between the pressure plates. And a tensile force test and application device for imparting necessary tensile force according to the test,
A fixing part coupled to the tensile force head;
A tension bar having both ends, a threaded portion formed on an outer peripheral surface of both end portions thereof, and one end portion being coupled to the fixed portion;
Tensile means for providing a tensile force to the tension bar to cause the fastener to move in the direction of the other end of the tension bar with the tension bar; And
And a support portion coupled to the tension bar and supporting the tension means from the support plate,
The support portion
A support frame which is open at both ends and is coupled to the outside of the tension bar, one end of which is seated on the support plate and which extends from one end to the other end; And
And a support plate connected to the other end of the support frame and having both ends opened to communicate with the support frame and on which the tensioning means is seated,
The fixing unit includes:
A first casing having both ends opened, one end coupled to the outside of the tension head, and a thread formed on the inner end surface of the other end;
A compression ring coupled between the first housing and the tension head to couple the first casing to the tension head; And
The tension member projecting from the tensile force head is drawn into the one end portion while the both ends thereof are opened, a thread is formed on the outer peripheral surface of the one end portion and is drawn into the first casing and screwed into the first casing, And a second casing formed with a thread and screwed to one end of the tension bar to connect the first casing and the tension bar,
The squeeze ring
Both ends of which are extended in the longitudinal direction of the tensile material and are branched into a pair of compression units surrounding both sides thereof in the longitudinal direction of the tensile force head,
The ground anchor includes:
And a cover coupled to the platen to cover the tension head and the other end of the tension member,
The fixing unit includes:
Wherein the cover is coupled to the tension head in a state in which the cover is separated from the pressure plate. The method according to claim 1,
And a pressure member screwed to the other end of the tension bar,
Wherein the tension means comprises:
And a hydraulic cylinder coupled to the tension bar to be positioned between the fixed portion and the pressure member,
In the hydraulic cylinder,
A housing having first and second inlet and outlet portions through which the hydraulic pressure flows in from the outside or the outlet of the inflow hydraulic pressure is discharged, and a housing which is located inside the housing and which is open at both ends to be coupled to the outside of the tension bar, And a cylinder rod for pressing or releasing the pressure member while being raised or lowered according to a hydraulic pressure applied to the ground anchor. delete The method according to claim 1,
The first casing includes:
The inner circumferential surface contacting with the compression ring is formed in such a shape that the inner diameter decreases from the other end of the first casing toward the one end,
The squeeze ring
Wherein both end portions are formed so as to extend in the longitudinal direction of the tensile member and to have a smaller outer diameter from the other end to the one end portion. delete
KR2020160001222U 2016-03-07 2016-03-07 Testing and granting apparatus of tensile force for ground anchor KR200481040Y1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101794480B1 (en) * 2017-06-05 2017-11-07 김홍기 Testing apparatus of tensile force for ground anchor
KR20190043383A (en) 2017-10-18 2019-04-26 한국도로공사 Apparatus for re-providing tension for steel strand of ground anchor
KR20190053435A (en) 2017-11-10 2019-05-20 지오엔지니어링(주) Apparatus for re-tensioning of strand wire
KR20200064506A (en) 2018-11-29 2020-06-08 지오엔지니어링(주) Anchor head unit for re-tensioning of strand wire and re-tensioning method of strand wire using the same
KR102122683B1 (en) 2019-08-07 2020-06-12 김홍기 Head apparatus for recycling of anchor and tension granting method
CN115217125A (en) * 2022-07-12 2022-10-21 四川省公路规划勘察设计研究院有限公司 Multilayer slide belt accumulation layer landslide anti-skidding supporting construction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100684387B1 (en) 2005-12-09 2007-02-22 정락준 Tension apparatus and method for earth anchor
KR20100124393A (en) * 2009-05-19 2010-11-29 (주) 효창이엔지 Tension cable retension structure and method
KR20160017007A (en) * 2016-01-26 2016-02-15 지오텍엔지니어링 주식회사 Multipurpose restrain apparatus and constructing method using the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100684387B1 (en) 2005-12-09 2007-02-22 정락준 Tension apparatus and method for earth anchor
KR20100124393A (en) * 2009-05-19 2010-11-29 (주) 효창이엔지 Tension cable retension structure and method
KR20160017007A (en) * 2016-01-26 2016-02-15 지오텍엔지니어링 주식회사 Multipurpose restrain apparatus and constructing method using the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101794480B1 (en) * 2017-06-05 2017-11-07 김홍기 Testing apparatus of tensile force for ground anchor
KR20190043383A (en) 2017-10-18 2019-04-26 한국도로공사 Apparatus for re-providing tension for steel strand of ground anchor
KR102021602B1 (en) * 2017-10-18 2019-09-16 한국도로공사 Apparatus for re-providing tension for steel strand of ground anchor
KR20190053435A (en) 2017-11-10 2019-05-20 지오엔지니어링(주) Apparatus for re-tensioning of strand wire
KR20200064506A (en) 2018-11-29 2020-06-08 지오엔지니어링(주) Anchor head unit for re-tensioning of strand wire and re-tensioning method of strand wire using the same
KR102122683B1 (en) 2019-08-07 2020-06-12 김홍기 Head apparatus for recycling of anchor and tension granting method
CN115217125A (en) * 2022-07-12 2022-10-21 四川省公路规划勘察设计研究院有限公司 Multilayer slide belt accumulation layer landslide anti-skidding supporting construction
CN115217125B (en) * 2022-07-12 2023-09-26 四川省公路规划勘察设计研究院有限公司 Multi-layer sliding belt stacking layer landslide anti-sliding support structure

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