JP2007231701A - Anchor tendon and anchoring structure of anchor - Google Patents

Anchor tendon and anchoring structure of anchor Download PDF

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JP2007231701A
JP2007231701A JP2006058352A JP2006058352A JP2007231701A JP 2007231701 A JP2007231701 A JP 2007231701A JP 2006058352 A JP2006058352 A JP 2006058352A JP 2006058352 A JP2006058352 A JP 2006058352A JP 2007231701 A JP2007231701 A JP 2007231701A
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anchor
fixing rod
rope
fixing
fixed
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JP4653675B2 (en
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Toshio Kubota
窪田俊男
Junpei Kubota
窪田潤平
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Civil Kk
Civil KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an anchor tendon and an anchoring structure of an anchor which is easily constructed and is economically efficient. <P>SOLUTION: The anchor tendon comprises an anchoring lever 10 made of a hard material and a rope material 20. In the anchor tendon, the anchoring lever 10 and the rope material 20 are joined to each other with a joint device 30 in a replaceable manner. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、アンカーテンドン及びアンカーの定着構造に関するものである。   The present invention relates to a fixing structure for an uncurtain dong and an anchor.

従来、グラウンドアンカー工や、崩落物防護ネットの固定には、高剛性のアンカー（ロックボルト等）が用いられていた。   Conventionally, a high-rigidity anchor (such as a lock bolt) has been used to fix a ground anchor or a fallen object protection net.

しかし、上記した高剛性のアンカーには、負荷作用時に、アンカーのせん断方向に外力が作用するため、棒体のアンカーのせん断破壊が生じる可能性があった。   However, since an external force acts in the shearing direction of the anchor when the load is applied to the above-described high-rigidity anchor, there is a possibility that the anchor breakage of the rod body may occur.

本発明は、施工が容易であり、経済性にも優れたアンカーテンドン及びアンカーの定着構造を提供することを目的とする。
また、アンカー耐力を確保しつつ、外力作用に伴うアンカーのせん断破壊を防止することを目的とする。
また、経済的に交換を行うことができるアンカーを提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide an anchorage don and anchor fixing structure that is easy to construct and excellent in economy.
Another object of the present invention is to prevent anchor fracture due to external force action while securing anchor strength.
It is another object of the present invention to provide an anchor that can be exchanged economically.

上記目的を達成するためになされた本願の第１発明は、硬質材からなる定着杆と、ロープ材とにより構成したアンカーテンドンであって、前記定着杆と前記ロープ材とを、ジョイント具を介して、交換可能に接合したことを特徴とする、アンカーテンドンである。
本願の第２発明は、前記した第１発明において、前記定着杆が自穿孔式であることを特徴とする、アンカーテンドンである。
本願の第３発明は、前記した第１又は第２発明のアンカーテンドンを、地盤に削孔したアンカー孔に挿入して定着した、アンカーの定着構造であって、アンカー孔に挿入した前記定着杆を、グラウトにより定着し、前記ロープ材を、地表に露出するように構成したことを特徴とする、アンカーの定着構造である。 The first invention of the present application made to achieve the above object is an uncurtain dong constituted by a fixing rod made of a hard material and a rope material, wherein the fixing rod and the rope material are connected via a joint tool. An uncurtain dong characterized by being exchangeably joined.
A second invention of the present application is the uncurtain don according to the first invention, wherein the fixing rod is a self-piercing type.
A third invention of the present application is an anchor fixing structure in which the uncurtain don of the first or second invention is inserted into an anchor hole drilled in the ground and fixed, and the fixing rod inserted into the anchor hole is fixed. This anchor fixing structure is characterized in that the rope is fixed by grout and the rope material is exposed to the ground surface.

本発明は、上記した課題を解決するための手段により、次のような効果の少なくとも一つを得ることができる。
＜１＞定着杆が硬質材であるため、十分なアンカー耐力が得られるとともに、露出部がロープ材であるため、外力作用時のせん断破壊を防止できる。
＜２＞定着杆が硬質材であるため、グラウトにより定着する定着長部が短くても十分なアンカー耐力が得られる。よって、アンカー孔を浅くすることができる。
＜３＞定着杆が硬質材であるため、定着杆をアンカー孔に挿入して固定する際のセンタリング及び位置修正が容易である。
＜４＞アンカーのせん断破壊が防止されるため、崩落時に大きな負荷のかかる、崩落物防護ネットの固定に好適である。
＜５＞地表に露出するロープ材が使用により劣化、損傷した場合には、ロープ材を取り外して交換することができるため、アンカーの再構築をする必要がなく、経済的となる。 The present invention can obtain at least one of the following effects by means for solving the above-described problems.
<1> Since the fixing rod is a hard material, sufficient anchor strength can be obtained, and since the exposed portion is a rope material, it is possible to prevent shear failure during external force action.
<2> Since the fixing rod is a hard material, a sufficient anchor strength can be obtained even if the fixing length portion fixed by the grout is short. Therefore, the anchor hole can be made shallow.
<3> Since the fixing rod is a hard material, centering and position correction when the fixing rod is inserted into the anchor hole and fixed are easy.
<4> Since the anchor is prevented from being broken by shear, it is suitable for fixing a fallen object protection net that is heavily loaded at the time of collapse.
<5> When the rope material exposed to the ground surface is deteriorated or damaged by use, the rope material can be removed and replaced, so that it is not necessary to rebuild the anchor, which is economical.

以下、図面を参照しながら本発明の実施の形態について説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

（１）アンカーテンドンの概要
本発明のアンカーテンドンは、図１に示すように、地盤４０に削孔したアンカー孔４１に挿入して定着する定着杆１０と、地表に露出するロープ材２０と、定着杆１０とロープ材２０とを交換可能に接合するジョイント具３０により構成する。
以下に構成部材について詳述する。 (1) Outline of Uncurtain Don As shown in FIG. 1, the uncurtain don of the present invention includes a fixing rod 10 that is inserted into an anchor hole 41 drilled in the ground 40 and fixed, a rope member 20 that is exposed to the ground surface, The fixing rod 10 and the rope member 20 are constituted by a joint tool 30 that is joined in a replaceable manner.
The constituent members will be described in detail below.

（２）定着杆
定着杆１０は、地盤４０に削孔したアンカー孔４１に挿入して定着するためのものである。
定着杆１０は、鋼材等の変形し難い硬質材で構成され、形状は、棒状であっても良いし、管状であってもよい。 (2) Fixing rod The fixing rod 10 is for inserting and fixing in the anchor hole 41 drilled in the ground 40.
The fixing rod 10 is made of a hard material that is difficult to be deformed, such as a steel material, and may have a rod shape or a tubular shape.

（３）ロープ材
ロープ材２０は、地表に露出させ、崩落物防護ネットや構造物等と係合するためのものであり、鋼線などのロープ体により構成する。 (3) Rope material The rope material 20 is for exposing to the ground surface and engaging with a collapsed object protection net, a structure, etc., and is composed of a rope body such as a steel wire.

（４）ジョイント具
ジョイント具３０は、定着杆１０とロープ材２０を接合するためのものである。
ジョイント具３０は、ロープ材２０に固着し、螺着等の分離できる手段により、定着杆１０に、着脱自在に取り付ける。 (4) Joint tool The joint tool 30 is for joining the fixing rod 10 and the rope material 20 together.
The joint tool 30 is fixed to the rope member 20 and is detachably attached to the fixing rod 10 by means that can be separated such as screwing.

［アンカーの構築］
次に、前記部材を使用してのアンカーの構築方法について説明する。 [Build Anchor]
Next, the construction method of the anchor using the said member is demonstrated.

アンカーを定着する地盤４０に、ボーリングマシン等により、アンカー孔４１を削孔する。次にアンカー孔４１に定着杆１０を挿入し、グラウト４３を注入して定着する。
定着杆１０は硬質材であるため、アンカー孔４１内でのセンタリングや位置修正を容易に行うことができる。
また、定着杆１０は硬質材であるため、グラウト４３により定着する定着長部１１が短くても十分なアンカー耐力を得ることができるため、定着杆１０を短く、また、アンカー孔４１も浅くでき、経済的である。 The anchor hole 41 is drilled in the ground 40 where the anchor is fixed by a boring machine or the like. Next, the fixing rod 10 is inserted into the anchor hole 41, and the grout 43 is injected and fixed.
Since the fixing rod 10 is a hard material, centering and position correction within the anchor hole 41 can be easily performed.
Further, since the fixing rod 10 is a hard material, sufficient anchor strength can be obtained even if the fixing length portion 11 fixed by the grout 43 is short. Therefore, the fixing rod 10 can be shortened and the anchor hole 41 can be shallow. Is economical.

次に、ロープ材２０に固着したジョイント具３０を、定着杆１０に取り付けて、アンカーを構築する。
定着杆１０及びジョイント具３０は地表に露出しないように構成する。 Next, the joint tool 30 fixed to the rope member 20 is attached to the fixing rod 10 to construct an anchor.
The fixing rod 10 and the joint tool 30 are configured not to be exposed to the ground surface.

［作用］
以上のようにアンカーを構成することにより、アンカーのせん断方向に外力が作用した場合には、定着杆１０及びジョイント具３０が地表に露出していないため、せん断力が作用するのは、地表に露出したロープ材２０のみとなる。ロープ材２０は硬質材ではないため、アンカーのせん断破壊を防止できる。 [Action]
By configuring the anchor as described above, when an external force is applied in the shear direction of the anchor, the anchoring rod 10 and the joint tool 30 are not exposed to the ground surface, and therefore the shear force acts on the ground surface. Only the exposed rope material 20 is obtained. Since the rope material 20 is not a hard material, the anchor can be prevented from shearing.

また、地表に露出するロープ材２０が使用により劣化、損傷した場合には、図２に示すように、ロープ材２０及びジョイント具３０を定着杆１０から切り離し、新たなロープ材２０及びジョイント具３０に交換できる。
このように、定着杆１０はそのまま再利用し、劣化、損傷したロープ材２０のみを交換できるため、経済的である。また、新たにアンカーを再構築する必要がないため、工程も短くできる。
なお、ジョイント具３０がアンカー孔４１の深い位置にあると、定着杆１０とジョイント具３０を切り離す際に、アンカー孔４１の周りの地盤４０を掘削する必要があるため、ジョイント具３０はアンカー孔４１内の浅い位置に配置するように構成することが好ましい。 Further, when the rope material 20 exposed on the ground surface is deteriorated or damaged by use, the rope material 20 and the joint tool 30 are separated from the fixing rod 10 as shown in FIG. Can be replaced.
Thus, the fixing rod 10 can be reused as it is, and only the rope member 20 that has deteriorated or damaged can be replaced, which is economical. Further, since there is no need to newly rebuild the anchor, the process can be shortened.
If the joint tool 30 is located deep in the anchor hole 41, the ground 40 around the anchor hole 41 needs to be excavated when the anchoring rod 10 and the joint tool 30 are separated. 41 is preferably arranged at a shallow position.

［その他の実施例］
定着杆１０は、削孔ロッドをそのまま定着させる、自穿孔式としてもよい。
定着杆１０を自穿孔式とすると、アンカー孔４１の削孔と、定着杆１０の挿入が一工程で完了できるため、アンカーの構築に要する工程を短縮できる。 [Other Examples]
The fixing rod 10 may be a self-piercing type in which the drilling rod is fixed as it is.
If the fixing rod 10 is of a self-drilling type, the drilling of the anchor hole 41 and the insertion of the fixing rod 10 can be completed in one process, so that the steps required to construct the anchor can be shortened.

以上の実施例は、ジョイント具３０はロープ材２０に固着し、定着杆１０に接合する構成としたが、ジョイント具３０そのものを切り離し可能に構成することもできる。この場合には、切り離したジョイント具３０を定着杆１０及びロープ材２０に各々固着し、切り離したジョイント具３０を組み合わせることで、定着杆１０とロープ材２０を接合する。ジョイント具３０の組み合わせには螺着等の周知の方法が適用できる。   In the above embodiment, the joint tool 30 is fixed to the rope member 20 and joined to the fixing rod 10, but the joint tool 30 itself may be configured to be separable. In this case, the separated joint device 30 is fixed to the fixing rod 10 and the rope member 20, and the separated joint device 30 is combined to join the fixing rod 10 and the rope member 20. A known method such as screwing can be applied to the combination of the joint tool 30.

本発明のアンカーの定着構造を示す説明図Explanatory drawing which shows the anchor fixing structure of the present invention 本発明のアンカーの交換状態を示す図The figure which shows the exchange state of the anchor of this invention

符号の説明Explanation of symbols

１０・・・定着杆
１１・・・定着長部
２０・・・ロープ材
３０・・・ジョイント具
４０・・・地盤
４１・・・アンカー孔
４２・・・グラウト DESCRIPTION OF SYMBOLS 10 ... Fixing rod 11 ... Fixing long part 20 ... Rope material 30 ... Joint tool 40 ... Ground 41 ... Anchor hole 42 ... Grout

Claims (3)

硬質材からなる定着杆と、ロープ材とにより構成したアンカーテンドンであって、
前記定着杆と前記ロープ材とを、ジョイント具を介して、交換可能に接合したことを特徴とする、
アンカーテンドン。 An uncurtain dong composed of a fixing rod made of a hard material and a rope material,
The fixing rod and the rope member are joined to each other through a joint tool in an exchangeable manner,
An Curtain Don. 請求項１に記載のアンカーテンドンにおいて、前記定着杆が自穿孔式であることを特徴とする、アンカーテンドン。   2. The uncurtain dong according to claim 1, wherein the fixing rod is a self-piercing type. 請求項１又は請求項２に記載のアンカーテンドンを、地盤に削孔したアンカー孔に挿入して定着した、アンカーの定着構造であって、
アンカー孔に挿入した前記定着杆を、グラウトにより定着し、
前記ロープ材を、地表に露出するように構成したことを特徴とする、
アンカーの定着構造。 An anchor fixing structure in which the uncurtain dong according to claim 1 or 2 is fixed by being inserted into an anchor hole drilled in the ground,
Fix the fixing rod inserted in the anchor hole by grout,
The rope material is configured to be exposed on the ground surface,
Anchor anchoring structure.
JP2006058352A 2006-03-03 2006-03-03 Anchor method Expired - Fee Related JP4653675B2 (en)

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JP4653675B2 JP4653675B2 (en) 2011-03-16

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4564592B1 (en) * 2010-06-11 2010-10-20 株式会社シビル Rock fall prevention structure
JP2011236688A (en) * 2010-05-12 2011-11-24 Japan Conservation Engineers Co Ltd Anchor construction method or rock bolt construction method using carbon fiber plate in tendon
CN113685061A (en) * 2021-09-29 2021-11-23 南京长江都市建筑设计股份有限公司 High-altitude sheet longitudinal bar anchoring structure and construction method thereof
JP7449789B2 (en) 2020-06-24 2024-03-14 三信建設工業株式会社 How to stop water using the removable anchor method, how to remove strands using the removable anchor method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59125536U (en) * 1983-02-09 1984-08-23 三菱重工業株式会社 anchor pile
JP2002173934A (en) * 2000-09-28 2002-06-21 Tokyo Seiko Co Ltd High strength anchor device and its installation method
JP2003064693A (en) * 2001-08-27 2003-03-05 Tokyo Seiko Co Ltd Anchor reinforcement device, anchor for slope face and method for installing anchor thereon

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59125536U (en) * 1983-02-09 1984-08-23 三菱重工業株式会社 anchor pile
JP2002173934A (en) * 2000-09-28 2002-06-21 Tokyo Seiko Co Ltd High strength anchor device and its installation method
JP2003064693A (en) * 2001-08-27 2003-03-05 Tokyo Seiko Co Ltd Anchor reinforcement device, anchor for slope face and method for installing anchor thereon

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011236688A (en) * 2010-05-12 2011-11-24 Japan Conservation Engineers Co Ltd Anchor construction method or rock bolt construction method using carbon fiber plate in tendon
JP4564592B1 (en) * 2010-06-11 2010-10-20 株式会社シビル Rock fall prevention structure
JP2011256665A (en) * 2010-06-11 2011-12-22 Civil Corp Rock fall prevention structure
JP7449789B2 (en) 2020-06-24 2024-03-14 三信建設工業株式会社 How to stop water using the removable anchor method, how to remove strands using the removable anchor method
CN113685061A (en) * 2021-09-29 2021-11-23 南京长江都市建筑设计股份有限公司 High-altitude sheet longitudinal bar anchoring structure and construction method thereof
CN113685061B (en) * 2021-09-29 2023-09-22 南京长江都市建筑设计股份有限公司 High-altitude thin plate longitudinal rib anchoring structure and construction method thereof

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