JP2020060057A - Reinforcement method for concrete wall - Google Patents

Reinforcement method for concrete wall Download PDF

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JP2020060057A
JP2020060057A JP2018192633A JP2018192633A JP2020060057A JP 2020060057 A JP2020060057 A JP 2020060057A JP 2018192633 A JP2018192633 A JP 2018192633A JP 2018192633 A JP2018192633 A JP 2018192633A JP 2020060057 A JP2020060057 A JP 2020060057A
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reinforcing
filler
fixing member
hole
adhesive
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JP7178860B2 (en
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平野　勝識
Katsunori Hirano
勝識 平野
笹谷　輝勝
Terumasa Sasatani
輝勝 笹谷
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Fujita Corp
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Fujita Corp
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Abstract

To provide a reinforcement component for reinforcing a concrete wall that can securely compress a filler filled in a reinforcement hole, improves binding strength between the reinforcement component and the concrete wall, and has advantage in ensuring reinforcement strength of the concrete wall.SOLUTION: Even when a compression rotation component 22 rotates and, accordingly, a filler compression rod 18 is about to rotate, rotation of a reinforcement component 12 accompanying the rotation of the compression rotation component 22 is inhibited because a fixation component 20 is attached in an unrotatable manner to a bottom 14B of a reinforcement hole 14 using an adhesive agent 28. Accordingly, the compression rotation component 22 can be securely moved to the side of the bottom 14B of the reinforcement hole 14, which enables secure compression of a filler 16 filled in the reinforcement hole 14.SELECTED DRAWING: Figure 3

Description

本発明はコンクリート壁の補強工法に関する。   The present invention relates to a reinforcing method for a concrete wall.

従来からコンクリート構造物の耐震性を強化する各種の補強工法が提案されている。
例えば、コンクリート壁に補強用孔を削孔したのち、補強用孔に充填材を充填し、補強用孔に補強部材を挿入し、充填材を硬化させることにより、補強部材とコンクリート壁とを結合させ、コンクリート壁のせん断力を補強する工法が提案されている。
しかしながら、単に充填材を細長い補強用孔に充填するのでは、充填の際に充填材に混入した空気を抜くことが難しく、補強用孔に充填された充填材には部分的に隙間が生じる場合がある。
補強用孔に充填された充填材に隙間が生じた状態で硬化すると、補強部材とコンクリート壁との結合強度が低下するため、コンクリート壁の補強強度を確保する上で改善の余地がある。
そこで、本出願人は、補強用孔への充填材の充填工程、補強用孔への補強部材の挿入工程の後に、前記補強用孔に充填された充填材を圧縮する圧縮工程を行なう工法を提案している。 Conventionally, various reinforcement methods have been proposed to enhance the earthquake resistance of concrete structures.
For example, after reinforcing holes are drilled in a concrete wall, the reinforcing holes are filled with a filler, the reinforcing member is inserted into the reinforcing holes, and the filler is hardened to bond the reinforcing member and the concrete wall. A method of reinforcing the shearing force of the concrete wall has been proposed.
However, if the filler is simply filled in the elongated reinforcing holes, it is difficult to remove the air mixed in the filler at the time of filling, and a gap is partially formed in the filler filled in the reinforcing holes. There is.
If the filler filled in the reinforcing hole is cured in a state where a gap is formed, the bonding strength between the reinforcing member and the concrete wall is reduced, and there is room for improvement in securing the reinforcing strength of the concrete wall.
Therefore, the applicant has a method of performing a compression step of compressing the filler filled in the reinforcing hole after the step of filling the reinforcing hole with the filler and the step of inserting the reinforcing member into the reinforcing hole. is suggesting.

特開２０１６−７００１６号公報JP, 2016-70016, A

先の提案によれば、補強用孔に充填された充填材に部分的に生じていた隙間が閉塞され、充填材の充填率が高められ、コンクリート壁の補強強度を確保する上で有利となる。
一方、充填材に部分的に生じていた隙間を閉塞する作業は、回転板を回すことでなされ、この作業は充填材の半乾きの状態で行なわれる。
そのため、回転板の回転に伴って補強部材が多少回転し、充填材を効果的に圧縮する上で不利があった。
また、先の出願によれば、補強部材の回転を阻止する補強用孔の構造も開示されているものの、このような構造の補強用孔を削孔するには特別の削孔機を使わなければならず、現場において簡単に削孔することができない。
本発明はこのような事情に鑑みなされたものであり、その目的は、補強用孔に充填した充填材を確実に圧縮でき、補強部材とコンクリート壁との結合強度を向上させ、コンクリート壁の補強強度を確保する上で有利なコンクリート壁の補強工法を提供することにある。 According to the above proposal, the gap partially generated in the filling material filled in the reinforcing hole is closed, the filling rate of the filling material is increased, and it is advantageous in securing the reinforcing strength of the concrete wall. .
On the other hand, the work of closing the gap partially generated in the filler is performed by rotating the rotary plate, and this work is performed in a state where the filler is semi-dried.
Therefore, the reinforcing member slightly rotates as the rotary plate rotates, which is disadvantageous in effectively compressing the filler.
Further, according to the previous application, although the structure of the reinforcing hole for preventing the rotation of the reinforcing member is also disclosed, a special hole drilling machine must be used for drilling the reinforcing hole of such a structure. Therefore, it is difficult to drill holes on site.
The present invention has been made in view of such circumstances, and an object thereof is to reliably compress the filler filled in the reinforcing hole, improve the bonding strength between the reinforcing member and the concrete wall, and reinforce the concrete wall. An object of the present invention is to provide a concrete wall reinforcement method that is advantageous in securing strength.

上述の目的を達成するため、請求項１記載の発明は、コンクリート壁に補強用孔を削孔する削孔工程と、前記補強用孔を洗浄する洗浄工程と、充填材圧縮用ロッドと、前記充填材圧縮用ロッドの先端に設けられ前記充填材圧縮用ロッドよりも断面形状が大きくかつ前記補強用孔に挿入可能な大きさの定着部材とを有する補強部材を前記補強用孔に挿入する挿入工程と、前記補強用孔に充填材を充填する充填工程と、前記挿入工程、前記充填工程の後に、前記補強用孔に充填された充填材を圧縮する圧縮工程と、を備えるコンクリート壁の補強工法であって、前記挿入工程後で前記充填工程の前に、前記定着部材を前記補強用孔の底部に接着剤を用いて回転不能に取り付ける取り付け工程を行なうことを特徴とする。
請求項２記載の発明は、前記補強用孔の底面に対向する前記定着部材の先端面に複数の凹凸部が設けられていることを特徴とする。
請求項３記載の発明は、前記補強用孔の底面に対向する前記定着部材の先端面に前記充填材圧縮用ロッドの軸心を中心とし前記充填材圧縮用ロッド側に窪む単一の凹部が形成されていることを特徴とする。
請求項４記載の発明は、前記接着剤は、前記挿入工程の前に前記補強用孔の底面に対向する前記定着部材の先端面に保持させることを特徴とする。
請求項５記載の発明は、前記補強部材には、前記定着部材と反対側の充填材圧縮用ロッドの基端から前記定着部材に貫通する接着剤供給路が設けられ、前記接着剤は、前記挿入工程後で前記充填工程の前に前記接着剤供給路から前記補強用孔の底部に供給されることを特徴とする。 In order to achieve the above-mentioned object, the invention according to claim 1 has a drilling step for drilling a reinforcing hole in a concrete wall, a cleaning step for cleaning the reinforcing hole, a filler compression rod, and Insert for inserting into the reinforcing hole a reinforcing member that is provided at the tip of the filler compressing rod and has a fixing member having a larger cross-sectional shape than the filler compressing rod and a size that can be inserted into the reinforcing hole. Reinforcement of a concrete wall, which comprises a step, a filling step of filling a filler in the reinforcing hole, a inserting step, and a compression step of compressing the filler filled in the reinforcing hole after the filling step. It is a construction method, and is characterized by performing an attaching step of non-rotatably attaching the fixing member to the bottom portion of the reinforcing hole using an adhesive after the inserting step and before the filling step.
The invention according to claim 2 is characterized in that a plurality of concave-convex portions are provided on the tip end surface of the fixing member facing the bottom surface of the reinforcing hole.
According to a third aspect of the present invention, a single recess is formed on the tip end surface of the fixing member facing the bottom surface of the reinforcing hole, the recess being centered on the axial center of the filler compression rod and closer to the filler compression rod side. Is formed.
The invention according to claim 4 is characterized in that the adhesive is held on the tip end surface of the fixing member facing the bottom surface of the reinforcing hole before the inserting step.
According to a fifth aspect of the present invention, the reinforcing member is provided with an adhesive supply passage that penetrates from the base end of the filler compression rod on the side opposite to the fixing member to the fixing member, and the adhesive is After the inserting step and before the filling step, the adhesive is supplied from the adhesive supply path to the bottom of the reinforcing hole.

請求項１記載の発明によれば、圧縮用回転部材の回転に伴って充填材圧縮用ロッドが回転しようとしても、接着剤により定着部材が補強用孔の底部に回転不能に取り付けられているので、圧縮用回転部材の回転に伴う補強部材の回転が阻止され、圧縮用回転部材を確実に補強用孔の底部側に移動させることができ、補強用孔に充填した充填材を確実に圧縮することができる。
そのため、充填材が圧縮され空気溜まりの空気や充填材の内部に残る空気が抜けて充填材に部分的に生じていた隙間が解消され、充填材の充填率が高まり、補強用孔に充填された充填材の強度を高めて密実なものとすることができ、その結果、補強部材と側壁との結合強度を向上させ、コンクリート壁の補強強度を確保する上で有利となる。
請求項２〜４記載の発明によれば、請求項１の効果を高める上でより有利となる。
請求項５の記載の発明によれば、請求項１と同様の効果が奏される他、取り付け工程を簡易迅速に行なう上で有利となる。 According to the first aspect of the present invention, the fixing member is non-rotatably attached to the bottom of the reinforcing hole by the adhesive even if the filler compression rod tries to rotate due to the rotation of the compression rotation member. The rotation of the reinforcing member due to the rotation of the compression rotating member is prevented, the compression rotating member can be reliably moved to the bottom side of the reinforcing hole, and the filler filled in the reinforcing hole is reliably compressed. be able to.
Therefore, the filler is compressed and the air remaining in the air reservoir or the air remaining inside the filler is released, eliminating the gap that was partially generated in the filler, increasing the filling rate of the filler, and filling the reinforcing hole. It is possible to increase the strength of the filling material to make it solid, and as a result, it is advantageous in improving the bonding strength between the reinforcing member and the side wall and ensuring the reinforcing strength of the concrete wall.
According to the inventions of claims 2 to 4, it is more advantageous in enhancing the effect of claim 1.
According to the invention described in claim 5, in addition to the same effect as in claim 1, it is advantageous in performing the mounting step simply and quickly.

第１の実施の形態に係るコンクリート壁の補強工法で使用される補強部材の側面図である。It is a side view of the reinforcement member used by the reinforcement construction method of the concrete wall concerning a 1st embodiment. 第１の実施の形態に係るコンクリート壁の補強工法の説明図であり、（Ａ）はコンクリート壁に補強用孔を削孔した状態を示す断面図、（Ｂ）は接着剤を保持した定着部材を補強用孔に挿入した状態を示す断面図、（Ｃ）は定着部材が補強用孔の底部に接着剤で取り付けられた状態を示す断面図、（Ｄ）は充填材を補強用孔に充填した状態を示す断面図である。It is explanatory drawing of the reinforcement construction method of the concrete wall which concerns on 1st Embodiment, (A) is sectional drawing which shows the state which drilled the reinforcement hole in the concrete wall, (B) is the fixing member holding the adhesive agent. Is a sectional view showing a state in which the fixing member is inserted into the reinforcing hole, (C) is a sectional view showing a state in which the fixing member is attached to the bottom of the reinforcing hole with an adhesive, and (D) is filling the reinforcing hole with a filler. It is sectional drawing which shows the state. 第１の実施の形態に係るコンクリート壁の補強工法の説明図であり、（Ａ）は雌ねじと雄ねじを螺合し圧縮用回転部材により補強用孔を閉塞した状態を示す断面図、（Ｂ）は補強用孔に充填された充填材を圧縮した状態を示す断面図、（Ｃ）は圧縮用回転部材の手前側に生じた空間に修復剤を充填した状態を示す断面図である。It is explanatory drawing of the reinforcement construction method of the concrete wall which concerns on 1st Embodiment, (A) is sectional drawing which shows the state which screwed the internal thread and the external thread, and closed the reinforcement hole by the rotating member for compression, (B). FIG. 4C is a cross-sectional view showing a state in which the filling material filled in the reinforcing hole is compressed, and FIG. 7C is a cross-sectional view showing a state in which the space formed on the front side of the compression rotating member is filled with the restoration agent. 充填材圧縮用ロッドの基部に圧縮用回転部材が取り付けられた状態を示す断面図である。It is sectional drawing which shows the state which the rotation member for compression was attached to the base part of the rod for compression of the filler. （Ａ）は第２の実施の形態に係るコンクリート壁の補強工法で使用される補強部材のうち定着部材周辺を拡大した側面図、（Ｂ）は（Ａ）のＢ矢視図、（Ｃ）は定着部材に接着剤が保持された状態を示す側面図である。(A) is an enlarged side view of the vicinity of the fixing member of the reinforcing member used in the concrete wall reinforcing method according to the second embodiment, (B) is a view from the arrow B of (A), (C). FIG. 4 is a side view showing a state in which an adhesive is held on a fixing member. （Ａ）は第３の実施の形態に係るコンクリート壁の補強工法で使用される補強部材のうち定着部材周辺を拡大した側面図、（Ｂ）は（Ａ）のＢ矢視図、（Ｃ）は定着部材に接着剤が保持された状態を示す側面図である。(A) is an enlarged side view of the vicinity of a fixing member of a reinforcing member used in the concrete wall reinforcing method according to the third embodiment, (B) is a view taken in the direction of arrow B of (A), (C). FIG. 4 is a side view showing a state in which an adhesive is held on a fixing member. （Ａ）は第４の実施の形態に係るコンクリート壁の補強工法で使用される補強部材のうち定着部材周辺を拡大した側面図、（Ｂ）は（Ａ）のＢ矢視図、（Ｃ）は定着部材に接着剤が保持された状態を示す側面図である。(A) is an enlarged side view of the vicinity of the fixing member of the reinforcing member used in the reinforcing method for the concrete wall according to the fourth embodiment, (B) is a view from the arrow B of (A), (C). FIG. 4 is a side view showing a state in which an adhesive is held on a fixing member. （Ａ）は第５の実施の形態に係るコンクリート壁の補強工法で使用される補強部材のうち定着部材周辺を拡大した側面図、（Ｂ）は（Ａ）のＢ矢視図、（Ｃ）は定着部材に接着剤が保持された状態を示す側面図である。(A) is an enlarged side view of the vicinity of the fixing member of the reinforcing member used in the concrete wall reinforcing method according to the fifth embodiment, (B) is a view taken in the direction of arrow B of (A), (C). FIG. 4 is a side view showing a state in which an adhesive is held on a fixing member. （Ａ）は第６の実施の形態に係るコンクリート壁の補強工法で使用される補強部材のうち定着部材周辺を拡大した側面図、（Ｂ）は（Ａ）のＢ矢視図、（Ｃ）は定着部材に接着剤が保持された状態を示す側面図である。(A) is an enlarged side view of the vicinity of the fixing member of the reinforcing member used in the concrete wall reinforcing method according to the sixth embodiment, (B) is a view from the arrow B of (A), (C). FIG. 4 is a side view showing a state in which an adhesive is held on a fixing member. （Ａ）は第７の実施の形態に係るコンクリート壁の補強工法で使用される補強部材のうち定着部材周辺を拡大した側面図、（Ｂ）は（Ａ）のＢ矢視図、（Ｃ）は定着部材に接着剤が保持された状態を示す側面図である。(A) is an enlarged side view of the vicinity of the fixing member of the reinforcing member used in the concrete wall reinforcing method according to the seventh embodiment, (B) is a view from the arrow B of (A), (C). FIG. 4 is a side view showing a state in which an adhesive is held on a fixing member. 第８の実施の形態に係るコンクリート壁の補強工法で使用される補強部材の断面図である。It is sectional drawing of the reinforcement member used by the reinforcement construction method of the concrete wall which concerns on 8th Embodiment. 第８の実施の形態に係るコンクリート壁の補強工法の説明図であり、（Ａ）はコンクリート壁に補強用孔を削孔した状態を示す断面図、（Ｂ）は補強用孔に挿入した定着部材を補強用孔の底部に押し付けた状態を示す断面図、（Ｃ）は定着部材が補強用孔の底部に接着剤で取り付けられた状態を示す断面図である。It is explanatory drawing of the reinforcement construction method of the concrete wall which concerns on 8th Embodiment, (A) is sectional drawing which shows the state which drilled the reinforcement hole in the concrete wall, (B) is the fixation inserted in the reinforcement hole. FIG. 4C is a cross-sectional view showing a state in which the member is pressed against the bottom of the reinforcing hole, and FIG. 7C is a cross-sectional view showing a state in which the fixing member is attached to the bottom of the reinforcing hole with an adhesive.

（第１の実施の形態）
以下、本発明の実施の形態のコンクリート壁の補強工法を図面にしたがって説明する。
まず、補強工法に用いる補強部材から説明する。
図１に示すように、補強部材１２は、後述するコンクリート壁１０の補強用孔１４（図２、図３参照）に挿入され補強用孔１４に充填された充填材１６と共にコンクリート壁１０を補強するものである。
補強部材１２は、充填材圧縮用ロッド１８と、定着部材２０と、圧縮用回転部材２２（図４参照）とを含んで構成されている。 (First embodiment)
Hereinafter, a concrete wall reinforcing method according to an embodiment of the present invention will be described with reference to the drawings.
First, the reinforcing member used in the reinforcing method will be described.
As shown in FIG. 1, the reinforcing member 12 reinforces the concrete wall 10 together with the filler 16 inserted into the reinforcing hole 14 (see FIGS. 2 and 3) of the concrete wall 10 to be described later and filled in the reinforcing hole 14. To do.
The reinforcing member 12 is configured to include a filler compression rod 18, a fixing member 20, and a compression rotating member 22 (see FIG. 4).

充填材圧縮用ロッド１８は、補強用孔１４に挿入される先部１８０２とその反対の基部１８０４とを有し、基部１８０４に雄ねじ１８０６が形成されている。
充填材圧縮用ロッド１８は、充填材１６と共にコンクリート壁１０の補強強度を確保するに足る剛性を有する材料で形成され、このような材料として例えば、鋼材や繊維強化樹脂などの従来公知の様々な材料が採用可能である。
本実施の形態では、充填材圧縮用ロッド１８として、予め全長にわたって雄ねじ１８０６が形成されたねじ節鉄筋を用いている。
なお、本実施の形態では、補強すべきコンクリート壁１０の厚さは、例えば、１００ｃｍ程度であり、補強用孔１４の内径は５ｃｍ程度、深さは９０ｃｍ程度、充填材圧縮用ロッド１８の直径は１ｃｍ〜２ｃｍ程度、補強部材１２の全長は８５ｃｍ程度である。これらの寸法は、補強すべきコンクリート壁１０の厚さに対応して適宜変更される。 The filler compression rod 18 has a tip portion 1802 to be inserted into the reinforcing hole 14 and a base portion 1804 opposite to the tip portion 1802, and a male screw 1806 is formed on the base portion 1804.
The filler compression rod 18 is formed of a material having rigidity sufficient to secure the reinforcing strength of the concrete wall 10 together with the filler 16, and as such a material, for example, various conventionally known materials such as steel and fiber reinforced resin can be used. The material can be adopted.
In the present embodiment, as the filler compressing rod 18, a threaded bar reinforcement having a male screw 1806 formed in advance over its entire length is used.
In the present embodiment, the concrete wall 10 to be reinforced has a thickness of, for example, about 100 cm, the reinforcing hole 14 has an inner diameter of about 5 cm, a depth of about 90 cm, and a filler compression rod 18 diameter. Is about 1 cm to 2 cm, and the total length of the reinforcing member 12 is about 85 cm. These dimensions are appropriately changed according to the thickness of the concrete wall 10 to be reinforced.

図１、図２（Ａ）〜（Ｄ）に示すように、定着部材２０は、充填材圧縮用ロッド１８の先端に取着され、充填材１６に埋設されることで補強用孔１４の底部１４Ｂに定着する箇所である。
定着部材２０は充填材圧縮用ロッド１８の断面形状よりも大きく、かつ、補強用孔１４に挿入可能な断面形状を有している。
本実施の形態では、定着部材２０は円板状を呈しており、定着部材２０と充填材圧縮用ロッド１８は同軸上に位置している。
定着部材２０は、充填材圧縮用ロッド１８と反対側の面が補強用孔１４の底面１４０２に対向する先端面２００２となっている。 As shown in FIGS. 1 and 2A to 2D, the fixing member 20 is attached to the tip of the filler compression rod 18 and embedded in the filler 16 so that the bottom of the reinforcing hole 14 is covered. It is a part fixed to 14B.
The fixing member 20 is larger than the sectional shape of the filler compression rod 18 and has a sectional shape that can be inserted into the reinforcing hole 14.
In the present embodiment, the fixing member 20 has a disk shape, and the fixing member 20 and the filler compression rod 18 are coaxially positioned.
The surface of the fixing member 20 opposite to the filler compression rod 18 is a front end surface 2002 facing the bottom surface 1402 of the reinforcing hole 14.

図４に示すように、圧縮用回転部材２２は、補強用孔１４の内周面１４０４にその外周部が近接する程度の外径を有しその中心に雄ねじ１８０６に螺合する雌ねじが貫通形成されている。
本実施の形態では、圧縮用回転部材２２は、補強用孔１４に挿入可能で補強用孔１４をほぼ閉塞する大きさの外径を有しその中心に補強部材挿通孔２４０２が形成された閉塞板部２４と、閉塞板部２４と同軸上に配置され雄ねじ１８０６に螺合可能な雌ねじ２６０２を有するナット部２６との切り離された２つの部材で構成されている。
なお、このような圧縮用回転部材２２の構成は上述の構造に限定されず、従来公知の様々な構造が採用可能である。 As shown in FIG. 4, the compression rotating member 22 has an outer diameter such that the outer peripheral portion thereof approaches the inner peripheral surface 1404 of the reinforcing hole 14, and a female screw threaded to the male screw 1806 is formed through the center thereof. Has been done.
In the present embodiment, the compression rotating member 22 has an outer diameter large enough to be inserted into the reinforcing hole 14 and substantially closes the reinforcing hole 14, and the reinforcing member insertion hole 2402 is formed at the center thereof. The plate portion 24 and the nut portion 26, which is arranged coaxially with the closing plate portion 24 and has a female screw 2602 that can be screwed into the male screw 1806, are composed of two separate members.
The structure of the compression rotating member 22 is not limited to the structure described above, and various conventionally known structures can be adopted.

閉塞板部２４は、硬化していない段階の可塑性を有する軟らかい充填材１６を圧縮するに足る剛性を有するものであればよく、圧縮用回転部材２２を構成する材料として、合成樹脂、ゴム、鉄鋼などの従来公知の様々な材料が使用可能である。
このように圧縮用回転部材２２が切り離された２つの部材で構成されている場合、後述する圧縮工程において、閉塞板部２４の補強部材挿通孔２４０２に補強部材１２が挿通され、ナット部２６は閉塞板部２４の補強用孔１４の開口１４Ａ側に配置されて雌ねじ２６０２が雄ねじ１８０６に螺合され、ナット部２６を回転させることで、閉塞板部２４は補強部材１２の軸方向に沿って補強用孔１４の底部１４Ｂ側に移動する。 The closing plate portion 24 may have a rigidity sufficient to compress the soft filler 16 having plasticity in the uncured stage, and as a material forming the compression rotating member 22, synthetic resin, rubber, steel or the like can be used. Various conventionally known materials such as, for example, can be used.
When the compression rotary member 22 is composed of two separated members, the reinforcing member 12 is inserted through the reinforcing member insertion hole 2402 of the closing plate portion 24 and the nut portion 26 is The blocking plate portion 24 is arranged on the opening 14A side of the reinforcing hole 14 of the closing plate portion 24, the female screw 2602 is screwed into the male screw 1806, and the nut portion 26 is rotated. It moves to the bottom portion 14B side of the reinforcing hole 14.

次に、第１の実施の形態に係るコンクリート壁の補強工法について説明する。
なお、本実施の形態では、コンクリート壁１０が、地中に埋設されることにより鉄道用の地下トンネルを構成するボックスカルバートの側壁１０である場合について説明する。
なお、本発明は、掘割道路、擁壁や橋梁アバット、橋脚などの従来公知の様々なコンクリート構造物を構成する側壁や底壁、天井壁などの壁部に適用可能である。 Next, a method for reinforcing the concrete wall according to the first embodiment will be described.
In addition, this Embodiment demonstrates the case where the concrete wall 10 is the side wall 10 of the box culvert which is embedded in the ground and comprises the underground tunnel for railroads.
The present invention is applicable to wall portions such as side walls, bottom walls, and ceiling walls that constitute various conventionally known concrete structures such as excavated roads, retaining walls, bridge abutments, and bridge piers.

まず、図２（Ａ）に示すように、穿孔装置を用いてボックスカルバートの側壁１０の外側面１００２から側壁１０に厚さ方向に延在する補強用孔１４を、側壁１０の延在方向や高さ方向に間隔をおいて複数削孔する（削孔工程）。
補強用孔１４の長さは、補強部材１２の全長よりも若干大きい寸法とされる。
穿孔装置としては、ドリル装置、コアボーリング装置、ウォータジェット穿孔装置など従来公知の様々な装置が使用可能である。 First, as shown in FIG. 2A, a reinforcing hole 14 extending in the thickness direction from the outer side surface 1002 of the side wall 10 of the box culvert to the side wall 10 is formed by using a punching device. Multiple holes are drilled at intervals in the height direction (drilling step).
The length of the reinforcing hole 14 is set to be slightly larger than the entire length of the reinforcing member 12.
As the perforation device, various conventionally known devices such as a drill device, a core boring device, and a water jet perforation device can be used.

側壁１０に補強用孔１４が削孔されたならば、補強用孔１４の内部を水によって洗浄し、削孔によって発生したコンクリート片や粉塵を補強用孔１４の内部から除去する（洗浄工程）。
次に、図２（Ｂ）に示すように、定着部材２０の先端面２００２に接着剤２８を保持させる。
接着剤２８は、先端面２００２から垂れ落ちずに先端面２００２に付着した状態を維持でき、先端面２００２で接着剤２８を安定した状態で保持できる程度の粘性を有するものを使用する。
また、後述する取り付け工程の短縮化を図るため、接着剤２８として速乾性を有するものを使用する。
このような接着剤２８としてエポキシ系接着剤２８など従来公知の様々な接着剤２８が使用可能である。
次に、図２（Ｃ）に示すように、補強部材１２を充填材圧縮用ロッド１８の先部１８０２、すなわち、定着部材２０から各補強用孔１４に挿入し、定着部材２０を補強用孔１４の底部１４Ｂの底面１４０２に接着剤２８を介在させた状態で不図示の治具を用いて底部１４Ｂの底面１４０２に押し付けた状態とする（挿入工程）。 When the reinforcing hole 14 is drilled in the side wall 10, the inside of the reinforcing hole 14 is washed with water, and concrete fragments and dust generated by the drilling are removed from the inside of the reinforcing hole 14 (cleaning step). .
Next, as shown in FIG. 2B, the adhesive 28 is held on the tip surface 2002 of the fixing member 20.
The adhesive agent 28 has such a viscosity that it can be kept attached to the front end surface 2002 without dropping from the front end surface 2002, and that the adhesive agent 28 can be held in a stable state by the front end surface 2002.
In addition, in order to shorten the attaching process described later, a quick-drying adhesive is used as the adhesive 28.
As the adhesive 28, various conventionally known adhesives 28 such as an epoxy adhesive 28 can be used.
Next, as shown in FIG. 2C, the reinforcing member 12 is inserted from the tip portion 1802 of the filler compression rod 18, that is, the fixing member 20 into each reinforcing hole 14, and the fixing member 20 is inserted into the reinforcing hole. The bottom surface 1402 of the bottom portion 14B of 14 is pressed against the bottom surface 1402 of the bottom portion 14B using a jig (not shown) with the adhesive 28 interposed (inserting step).

これにより、定着部材２０の先端面２００２と補強用孔１４の底面１４０２との間に接着剤２８が充填される。
本実施の形態では、定着部材２０の先端面２００２と補強用孔１４の底面１４０２との間、および、定着部材２０の外周面２００４の一部と補強用孔１４の内周面１４０４との間に接着剤２８が充填される。
このように接着剤２８を介在させ補強部材１２を補強用孔１４に対して押さえつけた状態で接着剤２８が完全に硬化することで、定着部材２０が補強用孔１４の底部１４Ｂに回転不能に取り付けられる（取り付け工程）。 As a result, the adhesive 28 is filled between the front end surface 2002 of the fixing member 20 and the bottom surface 1402 of the reinforcing hole 14.
In the present embodiment, between the tip surface 2002 of the fixing member 20 and the bottom surface 1402 of the reinforcing hole 14, and between a part of the outer peripheral surface 2004 of the fixing member 20 and the inner peripheral surface 1404 of the reinforcing hole 14. Is filled with the adhesive 28.
In this way, the adhesive 28 is completely cured while the reinforcing member 12 is pressed against the reinforcing hole 14 with the adhesive 28 interposed therebetween, so that the fixing member 20 cannot rotate to the bottom portion 14B of the reinforcing hole 14. It is attached (attachment process).

次に、図２（Ｄ）に示すように、定着部材２０が補強用孔１４の底部１４Ｂに回転不能に取り付けられて補強部材１２が挿入された補強用孔１４に、補強部材１２と側壁１０とを一体的に結合する充填材１６を充填する（充填工程）。
充填材１６としては、コンクリート、モルタル、あるいは、接着剤が使用可能である。
これにより、補強部材１２は、充填材圧縮用ロッド１８の基部１８０４を除いて充填材１６によって埋設される。
すなわち、充填材１６は、定着部材２０の周囲および充填材圧縮用ロッド１８の外周面１８１０と補強用孔１４の内周面１４０４との間に充填される。 Next, as shown in FIG. 2D, the fixing member 20 is non-rotatably attached to the bottom portion 14B of the reinforcing hole 14, and the reinforcing member 12 is inserted into the reinforcing hole 14 into which the reinforcing member 12 and the side wall 10 are inserted. Filling material 16 is integrally filled with (filling step).
As the filler 16, concrete, mortar, or an adhesive can be used.
As a result, the reinforcing member 12 is embedded with the filler 16 except the base portion 1804 of the filler compression rod 18.
That is, the filler 16 is filled around the fixing member 20 and between the outer peripheral surface 1810 of the filler compressing rod 18 and the inner peripheral surface 1404 of the reinforcing hole 14.

次に、例えば数時間経過後、充填材１６が完全に硬化する前の未硬化の状態、すなわち、充填材１６が半乾きの状態となったならば、図３（Ａ）に示すように、補強用孔１４の開口１４Ａ側で補強用孔１４の内部に位置させて圧縮用回転部材２２を充填材圧縮用ロッド１８の基部１８０４に取り付ける。
すなわち、閉塞板部２４の補強部材挿通孔２４０２に充填材圧縮用ロッド１８を挿通し、次いで、ナット部２６の雌ねじ２６０２を充填材圧縮用ロッド１８の雄ねじ１８０６に螺合させる。
ナット部２６の雌ねじ２６０２と雄ねじ１８０６を螺合することで閉塞板部２４により補強用孔１４が閉塞され、次に、図３（Ｂ）に示すように、ナット部２６を回転させることで閉塞板部２４を充填材圧縮用ロッド１８の軸方向で補強用孔１４の底部１４Ｂ側に移動させ、充填材１６を圧縮する（圧縮工程）。
これにより、補強用孔１４の上部に形成された空気溜まりや充填材１６の内部の空気が補強用孔１４から排出され、補強用孔１４内で充填材１６が密に圧縮される。 Next, for example, after several hours have passed, if the filler 16 is in an uncured state before being completely cured, that is, if the filler 16 is in a semi-dried state, as shown in FIG. The compression rotary member 22 is attached to the base portion 1804 of the filler compression rod 18 by being positioned inside the reinforcement hole 14 on the opening 14A side of the reinforcement hole 14.
That is, the filling material compression rod 18 is inserted into the reinforcing member insertion hole 2402 of the closing plate portion 24, and then the female screw 2602 of the nut portion 26 is screwed into the male screw 1806 of the filling material compression rod 18.
The reinforcing hole 14 is closed by the closing plate portion 24 by screwing the female screw 2602 and the male screw 1806 of the nut portion 26, and then the nut portion 26 is rotated to be closed as shown in FIG. 3B. The plate portion 24 is moved toward the bottom portion 14B side of the reinforcing hole 14 in the axial direction of the filler compression rod 18 to compress the filler 16 (compression step).
As a result, the air pool formed in the upper portion of the reinforcing hole 14 and the air inside the filler 16 are discharged from the reinforcing hole 14, and the filler 16 is densely compressed in the reinforcing hole 14.

圧縮工程において圧縮用回転部材２２の移動に伴い補強部材１２が補強用孔１４から出る方向に変位すると、充填材１６に対して作用する圧力が低下してしまう。
したがって、上述の不図示の治具を用いて圧縮工程において補強部材１２を補強用孔１４に対して押さえつけておき、これにより、圧縮用回転部材２２の充填材圧縮用ロッド１８の軸方向に沿った移動により充填材１６に対して圧力を確実に加えることができる。 When the reinforcing member 12 is displaced in the direction in which it exits from the reinforcing hole 14 with the movement of the compression rotating member 22 in the compression process, the pressure acting on the filler 16 decreases.
Therefore, the reinforcing member 12 is pressed against the reinforcing hole 14 in the compression step by using the jig (not shown) described above, so that the axial direction of the filler compressing rod 18 of the compressing rotary member 22 is reduced. The pressure can be surely applied to the filler 16 by such movement.

また、ナット部２６の回転の際に補強部材１２がナット部２６と一体に回転すると、閉塞板部２４を補強用孔１４の底部１４Ｂ側に移動させることができず、充填材１６を確実に圧縮できなくなる。
本実施の形態では、圧縮用回転部材２２の回転に伴って充填材圧縮用ロッド１８が回転しようとしても、接着剤２８により定着部材２０が補強用孔１４の底部１４Ｂに回転不能に取り付けられているので、圧縮用回転部材２２の回転に伴う補強部材１２の回転が阻止され、圧縮用回転部材２２を確実に補強用孔１４の底部１４Ｂ側に移動させることができ、補強用孔１４に充填した充填材１６を確実に圧縮することができる。 Further, when the reinforcing member 12 rotates integrally with the nut portion 26 during the rotation of the nut portion 26, the closing plate portion 24 cannot be moved to the bottom portion 14B side of the reinforcing hole 14, and the filling material 16 can be reliably secured. Cannot be compressed.
In the present embodiment, the fixing member 20 is non-rotatably attached to the bottom portion 14B of the reinforcing hole 14 by the adhesive 28 even if the filler compression rod 18 tries to rotate as the compression rotation member 22 rotates. Therefore, the rotation of the reinforcing member 12 due to the rotation of the compression rotating member 22 is prevented, the compression rotating member 22 can be reliably moved to the bottom portion 14B side of the reinforcing hole 14, and the reinforcing hole 14 is filled. The filled filler 16 can be reliably compressed.

圧縮工程後、開口１４Ａ側で補強用孔１４の内部に充填材圧縮用ロッド１８の基部１８０４および圧縮用回転部材２２が露出した状態となっている。
そこで、開口１４Ａ側の補強用孔１４の内部に、図３（Ｃ）に示すように、修復材３０を充填することで充填材圧縮用ロッド１８の基部１８０４および補強部材１２を埋設する（修復工程）。
このように修復材３０で充填材圧縮用ロッド１８の基部１８０４および圧縮用回転部材２２を埋設すると、充填材圧縮用ロッド１８の基部１８０４および圧縮用回転部材２２の劣化や腐食の防止を図る上で有利となる。
また、側壁１０の外側面１００２の補強用孔１４が埋設され平坦面とされることで、外側面１００２の美観の向上を図る上で有利となる。
修復材３０としては、エポキシ樹脂を用いることができる。エポキシ樹脂は防水性に優れているため、補強部材１２を構成する充填材圧縮用ロッド１８の腐食、劣化を防止する上で有利となる。
また、修復材３０として、コンクリートやモルタルを用いても良い。コンクリートやモルタルは耐熱性、耐火性に優れているため、火災が想定される環境下において耐久性を確保する上で有利となる。 After the compression step, the base portion 1804 of the filler compression rod 18 and the compression rotation member 22 are exposed inside the reinforcement hole 14 on the side of the opening 14A.
Therefore, as shown in FIG. 3C, the base material 1804 of the filler compression rod 18 and the reinforcing member 12 are embedded in the reinforcing hole 14 on the side of the opening 14 </ b> A as shown in FIG. Process).
By thus embedding the base portion 1804 of the filler compression rod 18 and the compression rotary member 22 with the restoration material 30, it is possible to prevent deterioration and corrosion of the base portion 1804 of the filler compression rod 18 and the compression rotary member 22. Will be advantageous.
In addition, the reinforcing hole 14 of the outer side surface 1002 of the side wall 10 is buried and made flat, which is advantageous in improving the appearance of the outer side surface 1002.
An epoxy resin can be used as the restoration material 30. Since the epoxy resin is excellent in waterproofness, it is advantageous in preventing the filler compression rod 18 constituting the reinforcing member 12 from being corroded and deteriorated.
Further, concrete or mortar may be used as the restoration material 30. Since concrete and mortar have excellent heat resistance and fire resistance, they are advantageous in ensuring durability in an environment where a fire is expected.

以上説明したように、本実施の形態によれば、圧縮用回転部材２２の回転に伴って充填材圧縮用ロッド１８が回転しようとしても、接着剤２８により定着部材２０が補強用孔１４の底部１４Ｂに回転不能に取り付けられているので、圧縮用回転部材２２の回転に伴う補強部材１２の回転が阻止され、圧縮用回転部材２２を確実に補強用孔１４の底部１４Ｂ側に移動させることができ、補強用孔１４に充填した充填材１６を確実に圧縮することができる。
そのため、充填材１６が圧縮され空気溜まりの空気や充填材１６の内部に残る空気が抜けて充填材１６に部分的に生じていた隙間が解消され、充填材１６の充填率が高まり、補強用孔１４に充填された充填材１６の強度を高めて密実なものとすることができ、その結果、補強部材１２と側壁１０との結合強度を向上させ、側壁１０の補強強度を確保する上で有利となる。
また、以上の効果を、接着剤２８を用いた取り付け工程を加えることにより簡単に達成できる。 As described above, according to the present embodiment, even if the filler compression rod 18 tries to rotate as the compression rotation member 22 rotates, the adhesive 28 causes the fixing member 20 to move to the bottom of the reinforcing hole 14. Since it is non-rotatably attached to 14B, the rotation of the reinforcement member 12 due to the rotation of the compression rotation member 22 is blocked, and the compression rotation member 22 can be reliably moved to the bottom portion 14B side of the reinforcement hole 14. Therefore, the filler 16 filled in the reinforcing hole 14 can be reliably compressed.
Therefore, the filler 16 is compressed, air in the air reservoir or air remaining inside the filler 16 is released, and the gap that is partially generated in the filler 16 is eliminated, the filling rate of the filler 16 is increased, and reinforcement is performed. The strength of the filling material 16 filled in the holes 14 can be increased to be solid, and as a result, the bonding strength between the reinforcing member 12 and the side wall 10 can be improved and the reinforcing strength of the side wall 10 can be ensured. Will be advantageous.
Further, the above effects can be easily achieved by adding a mounting process using the adhesive 28.

（第２の実施の形態）
次に、図５（Ａ）〜（Ｃ）を参照して第２の実施の形態について説明する。なお、以下の実施の形態では、第１の実施の形態と同様の部分、部材については第１の実施の形態と同一の符号を付してその説明を省略する。
第１の実施の形態では、定着部材２０の先端面２００２が平坦な面で形成されていたのに対し、第２の実施の形態では、定着部材２０の先端面２００２に複数の凹凸部３２を設けたものである。
第２の実施の形態では、複数の凹凸部３２は、定着部材２０の先端面２００２に形成された複数の凹溝３２０２で構成されている。
複数の凹溝３２０２は、先端面２００２の周方向に間隔をおきそれぞれ先端面２００２の中心から先端面２００２の半径方向に延在している。
このような第２の実施の形態によれば、先端面２００２に複数の凹凸部３２が設けられることになるから、先端面２００２の表面積が増大する。
この先端面２００２の表面積の増大により、挿入工程の前に、先端面２００２により多くの量の接着剤２８を保持させることが可能となり、十分な量の接着剤２８により定着部材２０の先端面２００２および外周面２００４を補強用孔１４の底部１４Ｂに取着する上で有利となる。
また、先端面２００２の表面積の増大により、接着剤２８の硬化後の接着剤２８と定着部材２０との接合強度を高める上で有利となる。
したがって、圧縮用回転部材２２の回転に伴う補強部材１２の回転を阻止し、補強用孔１４に充填した充填材１６を確実に圧縮する上で有利となり、補強部材１２と側壁１０との結合強度を向上させ、側壁１０の補強強度を確保する上でより有利となる。 (Second embodiment)
Next, a second embodiment will be described with reference to FIGS. In the following embodiments, the same parts and members as those in the first embodiment will be assigned the same reference numerals as those in the first embodiment, and the description thereof will be omitted.
In the first embodiment, the tip surface 2002 of the fixing member 20 is formed as a flat surface, whereas in the second embodiment, the tip surface 2002 of the fixing member 20 is provided with a plurality of uneven portions 32. It is provided.
In the second embodiment, the plurality of concave-convex portions 32 are formed of the plurality of concave grooves 3202 formed on the tip surface 2002 of the fixing member 20.
The plurality of recessed grooves 3202 are spaced from each other in the circumferential direction of the front end surface 2002 and extend from the center of the front end surface 2002 in the radial direction of the front end surface 2002.
According to the second embodiment as described above, since the plurality of uneven portions 32 are provided on the tip surface 2002, the surface area of the tip surface 2002 increases.
This increase in the surface area of the tip surface 2002 allows the tip surface 2002 to hold a larger amount of the adhesive 28 before the insertion process, and a sufficient amount of the adhesive 28 allows the tip surface 2002 of the fixing member 20 to be retained. And, it is advantageous in attaching the outer peripheral surface 2004 to the bottom portion 14B of the reinforcing hole 14.
In addition, the increase in the surface area of the tip surface 2002 is advantageous in increasing the bonding strength between the adhesive 28 and the fixing member 20 after the adhesive 28 is cured.
Therefore, it is advantageous in preventing the rotation of the reinforcing member 12 due to the rotation of the compression rotating member 22 and reliably compressing the filler 16 filled in the reinforcing hole 14, and the bonding strength between the reinforcing member 12 and the side wall 10. It is more advantageous in improving the strength and ensuring the reinforcing strength of the side wall 10.

（第３の実施の形態）
次に、図６（Ａ）〜（Ｃ）を参照して第３の実施の形態について説明する。
第３の実施の形態は、第２の実施の形態と同様に、定着部材２０の先端面２００２に複数の凹凸部３４を設けたものである。
第３の実施の形態では、複数の凹凸部３４は、定着部材２０の先端面２００２に形成された複数の凸条３４０２で構成されている。
複数の凸条３４０２は、先端面２００２の周方向に間隔をおきそれぞれ先端面２００２の中心から先端面２００２の半径方向に延在している。
このような第３の実施の形態によれば、第２の実施の形態と同様に先端面２００２の表面積が増大し、先端面２００２により多くの量の接着剤２８を保持することが可能となり、十分な量の接着剤２８により定着部材２０の先端面２００２および外周面２００４を補強用孔１４の底部１４Ｂに取着する上で有利となり、また、先端面２００２の表面積の増大により、接着剤２８の硬化後の接着剤２８と定着部材２０との接合強度を高める上で有利となる。
したがって、第２の実施の形態と同様に、圧縮用回転部材２２の回転に伴う補強部材１２の回転を阻止し、補強用孔１４に充填した充填材１６を確実に圧縮する上で有利となり、補強部材１２と側壁１０との結合強度を向上させ、側壁１０の補強強度を確保する上でより有利となる。 (Third Embodiment)
Next, a third embodiment will be described with reference to FIGS.
In the third embodiment, as in the second embodiment, a plurality of concave and convex portions 34 are provided on the front end surface 2002 of the fixing member 20.
In the third embodiment, the plurality of concave-convex portions 34 are composed of the plurality of convex stripes 3402 formed on the front end surface 2002 of the fixing member 20.
The plurality of ridges 3402 are spaced from each other in the circumferential direction of the tip surface 2002 and extend from the center of the tip surface 2002 in the radial direction of the tip surface 2002.
According to the third embodiment as described above, the surface area of the tip surface 2002 is increased similarly to the second embodiment, and it becomes possible to hold a large amount of the adhesive 28 in the tip surface 2002. A sufficient amount of the adhesive 28 is advantageous in attaching the front end surface 2002 and the outer peripheral surface 2004 of the fixing member 20 to the bottom portion 14B of the reinforcing hole 14, and due to the increase in the surface area of the front end surface 2002, the adhesive 28 This is advantageous in increasing the bonding strength between the adhesive 28 after curing and the fixing member 20.
Therefore, similarly to the second embodiment, it is advantageous in preventing the rotation of the reinforcing member 12 associated with the rotation of the compression rotating member 22 and reliably compressing the filler 16 filled in the reinforcing hole 14, This is more advantageous in improving the bonding strength between the reinforcing member 12 and the side wall 10 and ensuring the reinforcing strength of the side wall 10.

（第４の実施の形態）
次に、図７（Ａ）〜（Ｃ）を参照して第４の実施の形態について説明する。
第４の実施の形態は第３の実施の形態の変形例である。
すなわち、第３の実施の形態では、複数の凹凸部３４を構成する複数の凸条３４０２が先端面２００２の中心から先端面２００２の半径方向に直線状に延在していたのに対し、第４の実施の形態では、先端面２００２の中心を中心として先端面２００２の周方向に延在する環状の凸条３４１０が先端面２００２の半径方向に間隔をおいて複数設けられることで複数の凹凸部３４が構成されている。
このような第４の実施の形態によっても第２の実施の形態と同様に、先端面２００２の表面積が増大し、先端面２００２により多くの量の接着剤２８を保持することが可能となり、十分な量の接着剤２８により定着部材２０の先端面２００２および外周面２００４を補強用孔１４の底部１４Ｂに取着する上で有利となり、また、先端面２００２の表面積の増大により、接着剤２８の硬化後の接着剤２８と定着部材２０との接合強度を高める上で有利となる。
したがって、第２の実施の形態と同様に、圧縮用回転部材２２の回転に伴う補強部材１２の回転を阻止し、補強用孔１４に充填した充填材１６を確実に圧縮する上で有利となり、補強部材１２と側壁１０との結合強度を向上させ、側壁１０の補強強度を確保する上でより有利となる。 (Fourth Embodiment)
Next, a fourth embodiment will be described with reference to FIGS.
The fourth embodiment is a modification of the third embodiment.
That is, in the third embodiment, the plurality of ridges 3402 forming the plurality of uneven portions 34 extend linearly from the center of the front end surface 2002 in the radial direction of the front end surface 2002. In the fourth embodiment, a plurality of annular projections 3410 extending in the circumferential direction of the tip surface 2002 with the center of the tip surface 2002 as the center are provided at intervals in the radial direction of the tip surface 2002 to form a plurality of irregularities. The part 34 is configured.
According to such a fourth embodiment, as in the second embodiment, the surface area of the tip surface 2002 is increased, and it becomes possible to hold a large amount of the adhesive 28 on the tip surface 2002, which is sufficient. It is advantageous for attaching the tip surface 2002 and the outer peripheral surface 2004 of the fixing member 20 to the bottom portion 14B of the reinforcing hole 14 with a sufficient amount of the adhesive 28, and the surface area of the tip surface 2002 is increased, so that the adhesive 28 This is advantageous in increasing the bonding strength between the adhesive 28 after curing and the fixing member 20.
Therefore, similarly to the second embodiment, it is advantageous in preventing the rotation of the reinforcing member 12 associated with the rotation of the compression rotating member 22 and reliably compressing the filler 16 filled in the reinforcing hole 14, This is more advantageous in improving the bonding strength between the reinforcing member 12 and the side wall 10 and ensuring the reinforcing strength of the side wall 10.

（第５の実施の形態）
次に、図８（Ａ）〜（Ｃ）を参照して第５の実施の形態について説明する。
第５の実施の形態では、複数の凹凸部３６が、定着部材２０の先端面２００２に互いに間隔をおいて突設された複数の突起３６０２で構成されている。なお、突起３６０２に代えて複数の凹部を設けても良い。
このような第５の実施の形態によれば、第２の実施の形態と同様に、先端面２００２の表面積が増大し、先端面２００２により多くの量の接着剤２８を保持することが可能となり、十分な量の接着剤２８により定着部材２０の先端面２００２および外周面２００４を補強用孔１４の底部１４Ｂに取着する上で有利となり、また、先端面２００２の表面積の増大により、接着剤２８の硬化後の接着剤２８と定着部材２０との接合強度を高める上で有利となる。
したがって、第２の実施の形態と同様に、圧縮用回転部材２２の回転に伴う補強部材１２の回転を阻止し、補強用孔１４に充填した充填材１６を確実に圧縮する上で有利となり、補強部材１２と側壁１０との結合強度を向上させ、側壁１０の補強強度を確保する上でより有利となる。 (Fifth Embodiment)
Next, a fifth embodiment will be described with reference to FIGS.
In the fifth embodiment, the plurality of concave-convex portions 36 are composed of a plurality of protrusions 3602 which are provided on the front end surface 2002 of the fixing member 20 so as to protrude from each other at intervals. Note that a plurality of concave portions may be provided instead of the protrusion 3602.
According to such a fifth embodiment, as in the second embodiment, the surface area of the tip surface 2002 is increased, and it becomes possible to hold a larger amount of the adhesive 28 on the tip surface 2002. , Which is advantageous in attaching the front end surface 2002 and the outer peripheral surface 2004 of the fixing member 20 to the bottom portion 14B of the reinforcing hole 14 with a sufficient amount of the adhesive 28, and the increase in the surface area of the front end surface 2002 results in the adhesive agent. This is advantageous in increasing the bonding strength between the adhesive 28 after curing 28 and the fixing member 20.
Therefore, similarly to the second embodiment, it is advantageous in preventing the rotation of the reinforcing member 12 associated with the rotation of the compression rotating member 22 and reliably compressing the filler 16 filled in the reinforcing hole 14, This is more advantageous in improving the bonding strength between the reinforcing member 12 and the side wall 10 and ensuring the reinforcing strength of the side wall 10.

（第６の実施の形態）
次に、図９（Ａ）〜（Ｃ）を参照して第６の実施の形態について説明する。
第１の実施の形態では、定着部材２０の先端面２００２が平坦な面で形成されていたのに対し、第６の実施の形態では、定着部材２０の先端面２００２に、充填材圧縮用ロッド１８の軸心を中心とし充填材圧縮用ロッド１８側に窪む単一の凹部３８が形成されている。
すなわち、定着部材２０は円板状を呈し、凹部３８は、中央部よりも外周部が突出する凹状の湾曲面３８０２で形成されている。
このような第６の実施の形態によれば、第２の実施の形態と同様に先端面２００２の表面積が増大し、先端面２００２により多くの量の接着剤２８を保持することが可能となり、十分な量の接着剤２８により定着部材２０の先端面２００２および外周面２００４を補強用孔１４の底部１４Ｂに取着する上で有利となり、また、先端面２００２の表面積の増大により、接着剤２８の硬化後の接着剤２８と定着部材２０との接合強度を高める上で有利となる。
したがって、第２の実施の形態と同様に、圧縮用回転部材２２の回転に伴う補強部材１２の回転を阻止し、補強用孔１４に充填した充填材１６を確実に圧縮する上で有利となり、補強部材１２と側壁１０との結合強度を向上させ、側壁１０の補強強度を確保する上でより有利となる。 (Sixth Embodiment)
Next, a sixth embodiment will be described with reference to FIGS.
In the first embodiment, the tip end surface 2002 of the fixing member 20 is formed as a flat surface, whereas in the sixth embodiment, the tip end surface 2002 of the fixing member 20 is attached to the filler compression rod. A single recess 38 is formed centering on the axis of 18 toward the filler compression rod 18 side.
That is, the fixing member 20 has a disk shape, and the concave portion 38 is formed by a concave curved surface 3802 whose outer peripheral portion projects more than the central portion.
According to the sixth embodiment, as in the second embodiment, the surface area of the tip surface 2002 is increased, and it becomes possible to hold a large amount of the adhesive 28 on the tip surface 2002. A sufficient amount of the adhesive 28 is advantageous in attaching the front end surface 2002 and the outer peripheral surface 2004 of the fixing member 20 to the bottom portion 14B of the reinforcing hole 14, and due to the increase in the surface area of the front end surface 2002, the adhesive 28 This is advantageous in increasing the bonding strength between the adhesive 28 after curing and the fixing member 20.
Therefore, similarly to the second embodiment, it is advantageous in preventing the rotation of the reinforcing member 12 associated with the rotation of the compression rotating member 22 and reliably compressing the filler 16 filled in the reinforcing hole 14, This is more advantageous in improving the bonding strength between the reinforcing member 12 and the side wall 10 and ensuring the reinforcing strength of the side wall 10.

（第７の実施の形態）
次に、図１０（Ａ）〜（Ｃ）を参照して第７の実施の形態について説明する。
第７の実施の形態は、第６の実施の形態の変形例であり、充填材圧縮用ロッド１８の軸心を中心とし充填材圧縮用ロッド１８側に窪む単一の凹部３８が、内周面３８１０と底面３８１２とで形成されている。
すなわち、定着部材２０は円板部２０Ａと、円板部２０Ａの外周部から補強用孔１４の底面１４０２側に突出する筒部２０Ｂとを備え、凹部３８は、筒部２０Ｂの内側に位置し底面３８１２をなす円板部２０Ａの面と筒部２０Ｂの内周面３８１０とで形成されている。
このような第７の実施の形態によれば、第２の実施の形態と同様に先端面２００２の表面積が増大し、先端面２００２により多くの量の接着剤２８を保持することが可能となり、十分な量の接着剤２８により定着部材２０の先端面２００２および外周面２００４を補強用孔１４の底部１４Ｂに取着する上で有利となり、また、先端面２００２の表面積の増大により、接着剤２８の硬化後の接着剤２８と定着部材２０との接合強度を高める上で有利となる。
したがって、第２の実施の形態と同様に、圧縮用回転部材２２の回転に伴う補強部材１２の回転を阻止し、補強用孔１４に充填した充填材１６を確実に圧縮する上で有利となり、補強部材１２と側壁１０との結合強度を向上させ、側壁１０の補強強度を確保する上でより有利となる。 (Seventh embodiment)
Next, a seventh embodiment will be described with reference to FIGS.
The seventh embodiment is a modified example of the sixth embodiment, in which a single recess 38 that is recessed toward the filler compression rod 18 side with the axial center of the filler compression rod 18 as the center is formed inside. It is formed of a peripheral surface 3810 and a bottom surface 3812.
That is, the fixing member 20 includes a disc portion 20A and a tubular portion 20B protruding from the outer peripheral portion of the disc portion 20A toward the bottom surface 1402 of the reinforcing hole 14, and the recess 38 is located inside the tubular portion 20B. It is formed by the surface of the disk portion 20A forming the bottom surface 3812 and the inner peripheral surface 3810 of the tubular portion 20B.
According to the seventh embodiment as described above, the surface area of the tip surface 2002 is increased similarly to the second embodiment, and it becomes possible to hold a large amount of the adhesive 28 on the tip surface 2002, A sufficient amount of the adhesive 28 is advantageous in attaching the front end surface 2002 and the outer peripheral surface 2004 of the fixing member 20 to the bottom portion 14B of the reinforcing hole 14, and due to the increase in the surface area of the front end surface 2002, the adhesive 28 This is advantageous in increasing the bonding strength between the adhesive 28 after curing and the fixing member 20.
Therefore, similarly to the second embodiment, it is advantageous in preventing the rotation of the reinforcing member 12 accompanying the rotation of the compression rotating member 22 and reliably compressing the filler 16 filled in the reinforcing hole 14, This is more advantageous in improving the bonding strength between the reinforcing member 12 and the side wall 10 and ensuring the reinforcing strength of the side wall 10.

（第８実施の形態）
次に、図１１、図１２（Ａ）〜（Ｃ）を参照して第８の実施の形態について説明する。
第８の実施の形態は、第１の実施の形態に接着剤供給路４０を設けたものである。
接着剤供給路４０は、定着部材２０と反対側の充填材圧縮用ロッド１８の基端から定着部材２０の先端面２００２に貫通している。
なお、この第８の実施の形態の接着剤供給路４０は第１〜第７の実施の形態の全てに適用可能である。
また、接着剤２８として第１〜第７の実施の形態に比べて粘性の低いものが使用され、すなわち接着剤２８として接着剤供給路４０を流通できる粘性のものが使用され、このような接着剤２８としてエポキシ系接着剤２８など従来公知の様々な接着剤２８が使用可能である。 (Eighth Embodiment)
Next, an eighth embodiment will be described with reference to FIGS. 11 and 12A to 12C.
In the eighth embodiment, the adhesive supply passage 40 is provided in the first embodiment.
The adhesive supply path 40 penetrates from the base end of the filler compression rod 18 on the side opposite to the fixing member 20 to the front end surface 2002 of the fixing member 20.
The adhesive supply passage 40 of the eighth embodiment can be applied to all of the first to seventh embodiments.
In addition, as the adhesive 28, one having a lower viscosity than that of the first to seventh embodiments is used, that is, as the adhesive 28, one having a viscosity capable of flowing through the adhesive supply path 40 is used. As the agent 28, various conventionally known adhesives 28 such as an epoxy adhesive 28 can be used.

第８の実施の形態では、接着剤２８は、挿入工程後で充填工程の前に接着剤供給路４０から先端面２００２に供給される。
すなわち、図１２（Ａ）に示すように、側壁１０に補強用孔１４が削孔され、補強用孔１４の内部が水によって洗浄されたならば、図１２（Ｂ）に示すように補強部材１２を充填材圧縮用ロッド１８の先部１８０２、すなわち、定着部材２０から各補強用孔１４に挿入し、不図示の治具を用いて定着部材２０を補強用孔１４の底面１４０２）に押し付けた状態とする（挿入工程）。
次に、図１２（Ｃ）に示すように、接着剤供給路４０から接着剤２８を定着部材２０の先端面２００２に供給し、これにより接着剤２８は定着部材２０の先端面２００２と補強用孔１４の底面１４０２との間に充填される。
この場合、接着剤２８は、接着剤供給路４０において圧送できる程度の粘性を有するものを使用する。
本実施の形態では、定着部材２０の先端面２００２と補強用孔１４の底面１４０２との間、および、定着部材２０の外周面２００４の一部と補強用孔１４の内周面１４０４との間に接着剤２８が充填される。
このように接着剤２８を介在させ補強部材１２を補強用孔１４に対して押さえつけた状態で、接着剤２８が完全に硬化することで定着部材２０が補強用孔１４の底部１４Ｂに回転不能に取り付けられる（取り付け工程）。 In the eighth embodiment, the adhesive 28 is supplied to the front end surface 2002 from the adhesive supply passage 40 after the inserting step and before the filling step.
That is, as shown in FIG. 12A, if the reinforcing hole 14 is drilled in the side wall 10 and the inside of the reinforcing hole 14 is washed with water, as shown in FIG. 12 is inserted from the tip portion 1802 of the filler compression rod 18, that is, the fixing member 20 into each reinforcing hole 14, and the fixing member 20 is pressed against the bottom surface 1402 of the reinforcing hole 14 using a jig (not shown). (Inserting step).
Next, as shown in FIG. 12C, the adhesive 28 is supplied from the adhesive supply path 40 to the front end surface 2002 of the fixing member 20, whereby the adhesive 28 and the front end surface 2002 of the fixing member 20 are used for reinforcement. Filled between the bottom surface 1402 of the hole 14 and the bottom surface 1402.
In this case, the adhesive 28 has such a viscosity that it can be pressure-fed in the adhesive supply path 40.
In the present embodiment, between the tip surface 2002 of the fixing member 20 and the bottom surface 1402 of the reinforcing hole 14, and between a part of the outer peripheral surface 2004 of the fixing member 20 and the inner peripheral surface 1404 of the reinforcing hole 14. Is filled with the adhesive 28.
As described above, the fixing member 20 is prevented from rotating on the bottom portion 14B of the reinforcing hole 14 by completely curing the adhesive 28 while the reinforcing member 12 is pressed against the reinforcing hole 14 with the adhesive 28 interposed. It is attached (attachment process).

接着剤２８の硬化後は、第１の実施の形態と同様であり、充填工程、圧縮工程、修復工程が行なわれる。
第８の実施の形態によれば、第１の実施の形態と同様な効果が奏される他、接着剤２８の定着部材２０の先端面２００２と補強用孔１４の底面１４０２との間への充填を簡単に確実に行なえ、取り付け工程を簡易迅速に行なう上で有利となる。 After the adhesive 28 is cured, the filling step, the compression step, and the repairing step are performed as in the first embodiment.
According to the eighth embodiment, the same effect as that of the first embodiment is obtained, and in addition, the adhesive 28 extends between the tip surface 2002 of the fixing member 20 and the bottom surface 1402 of the reinforcing hole 14. This is advantageous in that the filling can be carried out easily and surely and the mounting process can be carried out simply and quickly.

なお、接着剤２８は、補強用孔１４に補強部材１２を挿入する前に、接着剤供給管を用いて補強用孔１４の底面１４０２に付着させておき、その後、補強用孔１４に補強部材１２を挿入し、定着部材２０を底面１４０２に付着された接着剤２８中に埋め込み、補強用孔１４の底面１４０２に当て付け、接着剤２８を硬化させるようにしてもよい。ただし、第１〜第８の実施の形態のようにすると、接着剤供給管を用いることがないので、取り付け工程を簡易迅速に行なう上で有利となる。   The adhesive 28 is attached to the bottom surface 1402 of the reinforcing hole 14 by using an adhesive supply pipe before the reinforcing member 12 is inserted into the reinforcing hole 14, and then the reinforcing member is inserted into the reinforcing hole 14. Alternatively, the fixing member 20 may be inserted, the fixing member 20 may be embedded in the adhesive 28 attached to the bottom surface 1402, and the fixing member 20 may be applied to the bottom surface 1402 of the reinforcing hole 14 to cure the adhesive 28. However, in the case of the first to eighth embodiments, since the adhesive supply pipe is not used, it is advantageous in performing the mounting process simply and quickly.

１０ コンクリート壁（側壁）
１２ 補強部材
１４ 補強用孔
１４Ａ 開口
１４Ｂ 底部
１４０２ 底面
１６ 充填材
１８ 充填材圧縮用ロッド
１８０２ 先部
１８０４ 基部
２０ 定着部材
２００２ 先端面
２８ 接着剤
３２ 凹凸部
３４ 凹凸部
３６ 凹凸部
３８ 単一の凹部
４０ 接着剤供給路 10 Concrete wall (side wall)
12 Reinforcing Member 14 Reinforcing Hole 14A Opening 14B Bottom 1402 Bottom 16 Filler 18 Filler Compressing Rod 1802 Tip 1804 Base 20 Fixing Member 2002 Tip Surface 28 Adhesive 32 Unevenness 34 Unevenness 36 Unevenness 38 Single Recess 40 Adhesive supply path

Claims (5)

コンクリート壁に補強用孔を削孔する削孔工程と、
前記補強用孔を洗浄する洗浄工程と、
充填材圧縮用ロッドと、前記充填材圧縮用ロッドの先端に設けられ前記充填材圧縮用ロッドよりも断面形状が大きくかつ前記補強用孔に挿入可能な大きさの定着部材とを有する補強部材を前記補強用孔に挿入する挿入工程と、
前記補強用孔に充填材を充填する充填工程と、
前記挿入工程、前記充填工程の後に、前記補強用孔に充填された充填材を圧縮する圧縮工程と、
を備えるコンクリート壁の補強工法であって、
前記挿入工程後で前記充填工程の前に、前記定着部材を前記補強用孔の底部に接着剤を用いて回転不能に取り付ける取り付け工程を行なう、
ことを特徴とするコンクリート壁の補強工法。 Drilling process for drilling reinforcement holes on concrete wall,
A cleaning step of cleaning the reinforcing hole,
A reinforcing member having a filler compression rod and a fixing member which is provided at the tip of the filler compression rod and has a cross-sectional shape larger than that of the filler compression rod and has a size insertable into the reinforcement hole. An inserting step of inserting into the reinforcing hole,
A filling step of filling the reinforcing hole with a filler,
After the inserting step and the filling step, a compression step of compressing the filling material filled in the reinforcing hole,
A method of reinforcing a concrete wall comprising:
After the inserting step and before the filling step, an attaching step of non-rotatably attaching the fixing member to the bottom of the reinforcing hole using an adhesive is performed.
A concrete wall reinforcement method characterized by the above. 前記補強用孔の底面に対向する前記定着部材の先端面に複数の凹凸部が設けられている、
ことを特徴とする請求項１記載のコンクリート壁の補強工法。 A plurality of concavo-convex portions are provided on the tip surface of the fixing member facing the bottom surface of the reinforcing hole.
The method for reinforcing a concrete wall according to claim 1, wherein 前記補強用孔の底面に対向する前記定着部材の先端面に前記充填材圧縮用ロッドの軸心を中心とし前記充填材圧縮用ロッド側に窪む単一の凹部が形成されている、
ことを特徴とする請求項１記載のコンクリート壁の補強工法。 A single concave portion is formed on the tip end surface of the fixing member facing the bottom surface of the reinforcing hole, the concave portion being recessed toward the filler compression rod side around the axial center of the filler compression rod.
The method for reinforcing a concrete wall according to claim 1, wherein 前記接着剤は、前記挿入工程の前に前記補強用孔の底面に対向する前記定着部材の先端面に保持させる、
ことを特徴とする請求項１〜３の何れか１項記載のコンクリート壁の補強工法。 The adhesive is held on the tip surface of the fixing member facing the bottom surface of the reinforcing hole before the inserting step,
The method for reinforcing a concrete wall according to any one of claims 1 to 3, characterized in that: 前記補強部材には、前記定着部材と反対側の充填材圧縮用ロッドの基端から前記定着部材に貫通する接着剤供給路が設けられ、
前記接着剤は、前記挿入工程後で前記充填工程の前に前記接着剤供給路から前記補強用孔の底部に供給される、
ことを特徴とする請求項１〜３の何れか１項記載のコンクリート壁の補強工法。 The reinforcing member is provided with an adhesive supply path that penetrates from the base end of the filler compression rod on the side opposite to the fixing member to the fixing member.
The adhesive is supplied from the adhesive supply path to the bottom of the reinforcing hole after the inserting step and before the filling step,
The method for reinforcing a concrete wall according to any one of claims 1 to 3, characterized in that:
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