JP6195732B2 - Concrete structure repair tool - Google Patents

Concrete structure repair tool Download PDF

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JP6195732B2
JP6195732B2 JP2013110150A JP2013110150A JP6195732B2 JP 6195732 B2 JP6195732 B2 JP 6195732B2 JP 2013110150 A JP2013110150 A JP 2013110150A JP 2013110150 A JP2013110150 A JP 2013110150A JP 6195732 B2 JP6195732 B2 JP 6195732B2
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concrete structure
repair tool
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mortar
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修 南
修 南
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株式会社 南組
株式会社 南組
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Description

本発明は、岸壁、堤防、ダムの突堤、橋脚等のコンクリート製構造物に生じた亀裂や損壊の補修に用いて好適なコンクリート製構造物用補修具に関する。   The present invention relates to a repair tool for a concrete structure suitable for repairing cracks and breakage generated in a concrete structure such as a quay, a dike, a dam jetty, and a pier.

岸壁、堤防、ダムの突堤等のコンクリート製構造物は、コンクリートと鉄骨を組み合わせた構造からなるが、コンクリートは酸性雨や大気中の酸化物に接して次第にアルカリ化する。このコンクリートのアルカリ化に伴って鉄骨が発錆し、錆が更に拡大すると鉄骨は体積が約9%膨張することから終にはコンクリートが膨脹圧によって爆裂し、コンクリート構造物に亀裂や剥離が形成されてコンクリート構造物の強度性の低下を招くことになる。   Concrete structures such as quays, dikes, and dam jetty are composed of a combination of concrete and steel, but the concrete gradually becomes alkaline in contact with acid rain and atmospheric oxides. As the concrete is alkalized, the steel frame rusts, and when the rust expands further, the steel frame expands by about 9%. Finally, the concrete explodes due to the expansion pressure, and cracks and delamination form in the concrete structure. As a result, the strength of the concrete structure is lowered.

このコンクリート構造物の亀裂や剥離を補修する方法として、従来は亀裂にはモルタルを加圧充填し、剥離にはモルタルを塗布する、亀裂を含む周辺を凹状に切削してモルタルを充填するといった補修方法が行なわれている。また、堤防の補修方法として、五徳縫い水防工法があり、亀裂1の周囲の法面2に杭部材10を打ち込む前に、管状部材20を打ち込んで打ち込み用孔19を形成し、その後杭部材10を打ち込んで五徳縫い水防工法を実施する技術が提案されている(特許文献1)。   As a method of repairing cracks and delamination of this concrete structure, conventionally, mortar is pressure-filled for cracks, mortar is applied for delamination, and mortar is filled by cutting the periphery including cracks into a concave shape. The method is done. In addition, as a repair method for the dike, there is a Gotoku stitch water-proof method. Before the pile member 10 is driven into the slope 2 around the crack 1, the tubular member 20 is driven to form the driving hole 19, and then the pile member 10. A technique for implementing the Gotoku sewing water-proofing method by driving in (Patent Document 1) has been proposed.

特開2011−111825JP2011-111825A

上述した従来技術において、モルタルを亀裂や凹部に単に充填する方法は、損傷箇所を覆うモルタルが露出しているために雨水の浸透は避けられず、一時的な補修に過ぎないため耐久性に欠けるという問題がある。また、損傷部位を覆う補修板を金属製ボルト・ナットでコンクリート製構造物に固定してもボルト・ナットの発錆は避けられないという欠点がある。更に、五徳縫い水防工法にあっては、法面に打ち込んだ複数本の杭部材の上端側を交差させて紐で締結し、締結部位より上側に重りとしての土嚢を乗せることから、垂直面や傾斜面の補修には使用出来ないという欠点、補修工事に手間が掛り、費用が嵩む、耐久性に欠けるという欠点がある。   In the above-described prior art, the method of simply filling mortar into cracks and recesses cannot avoid the penetration of rainwater because the mortar covering the damaged portion is exposed, and is only a temporary repair and lacks durability. There is a problem. Further, there is a drawback that rusting of the bolts and nuts cannot be avoided even if the repair plate covering the damaged part is fixed to the concrete structure with metal bolts and nuts. Furthermore, in the Gotoku seaweed flood control method, the upper ends of a plurality of pile members driven into the slope are crossed and fastened with a string, and a sandbag as a weight is placed on the upper side from the fastening part. There are disadvantages that it cannot be used for repairing inclined surfaces, troublesome repair work, high costs, and lack of durability.

本発明は上述した従来技術の諸欠点に鑑みなされたもので、コンクリート製構造物に生じた亀裂や損壊の補修を簡単、迅速、安価に行うことができ、かつ亀裂の拡大を防止することができるコンクリート製構造物用補修具を提供することを目的とする。   The present invention has been made in view of the above-mentioned drawbacks of the prior art, and can repair cracks and breakage occurring in a concrete structure easily, quickly, and inexpensively, and can prevent the crack from expanding. An object of the present invention is to provide a repair tool for concrete structures.

上述した課題を解決するために構成した本発明の手段は、コンクリート製構造物の補修箇所を覆う非金属製の覆い板を該コンクリート製構造物に密接させる補修具であって、前記コンクリート製構造物に挿着して前記覆い板を支持する植設ボルトは、全長にわたって同径の円柱状基体の中間部位から軸方向先端までを挿着部とし、該挿着部は外周面に係止溝を形成すると共に、周方向及び軸方向に離間して複数の姿勢保持片を突設した形状とし、前記コンクリート製構造物から突出する前記中間部位から軸方向他端までを螺着部としてその外周面に雄ねじを形成した構成からなり、該植設ボルトに螺着して前記覆い板を前記コンクリート製構造物に密接させるナットは、前記雄ねじに螺合する雌ねじを内周面に形成したものからなり、該ナット及び植設ボルトはモルタル成形したものからなる。 The means of the present invention configured to solve the above-described problem is a repair tool for bringing a non-metallic cover plate covering a repaired portion of a concrete structure into close contact with the concrete structure, the concrete structure The planting bolt that is inserted into the object and supports the cover plate has an insertion portion extending from the intermediate portion of the cylindrical base body having the same diameter to the axial tip over the entire length , and the insertion portion has a locking groove on the outer peripheral surface. A plurality of posture holding pieces projectingly spaced apart in the circumferential direction and the axial direction, and the outer periphery of the intermediate portion protruding from the concrete structure to the other end in the axial direction as a screwed portion The nut has a configuration in which a male screw is formed on the surface, and the nut that is screwed to the planting bolt to bring the cover plate into close contact with the concrete structure is formed from a female screw that is screwed to the male screw on the inner peripheral surface. And the nut And implanting the bolt consists of those mortar molded.

そして、前記係止溝は、前記挿着部に軸方向に離間して配設した複数の環状溝、又は螺旋状溝に形成するとよい。   The locking groove may be formed in a plurality of annular grooves or spiral grooves that are spaced apart from each other in the axial direction in the insertion portion.

また、前記環状溝からなる複数の係止溝は、モルタル導入溝で連通させるとよい。   The plurality of locking grooves formed of the annular groove may be communicated with each other through a mortar introduction groove.

また、前記モルタル導入溝は、先端を前記挿着部の先端に開口した状態に形成するとよい。   The mortar introduction groove may be formed in a state where the tip is opened at the tip of the insertion portion.

また、前記姿勢保持片は、上面を前端から後端に向けて上り傾斜面に形成するとよい。 The posture holding piece may be formed as an upward inclined surface with the upper surface from the front end toward the rear end .

更に、前記植設ボルト及び/又はナットに非金属製材料からなる補強材を混入させるとよい。   Furthermore, a reinforcing material made of a non-metallic material may be mixed into the planting bolt and / or nut.

本発明は上述の如く構成したから下記の諸効果を奏する。
(1)コンクリート構造物の補修部分は非金属製の覆い板で覆い、覆い板はモルタル成形の植設ボルト・ナットで固定することにより金属材材料は一切用いない構成にしたから、発錆した金属製ボルト・ナットの体積増加によってコンクリート製構造物が爆裂するという従来の問題を完全に解消し、コンクリート構造物の耐久性を大幅に高めることができるし、錆赤による変色も生じないから景観を損なう事態も解消できる。しかも、補修費用が安価である。
(2)覆い板は、コンクリート構造物に挿着した植設ボルトにナットで支持する構成にしたから、補修作業を短期間に、かつ安価に行うことができる。
(3)植設ボルトは、係止溝にモルタル導入溝からモルタルが流入することで、コンクリート製構造物に確実かつ強固に固着することができる。
(4)環状溝からなる複数の係止溝は、モルタル導入溝で連通させたから、全ての係止溝内にモルタルを充填させることができ、植設ボルトをコンクリート構造物に強固に固着することができる。
(5)挿着部に形成する導入溝は、円柱状基体の先端に開口した状態に形成したから、各係止溝内に速やかに確実にモルタルを充填させることができ、植設ボルトをコンクリート製構造物に強固に固着することができる。
(6)植設ボルトは挿着部の外周面に、周方向及び軸方向に離間して複数の姿勢保持片を突設したから、摺動性に欠けるコンクリート製構造物に容易に挿入することができ、しかも各姿勢保持片は硬化したモルタルに係着するので植設ボルトはコンクリート製構造物に強固に固着することができる。
(7)植設ボルトは、全長にわたって同径の円柱状基体に形成し、その外周面に複数の姿勢保持片を突設した形状にしたから、植設ボルトはボルト挿着穴の軸線に中心線が沿うように保持されることで安定した状態で強固に固着され、覆い板を確実に支えることができる。
(8)姿勢保持片は、上面を前端から後端に向けて上り傾斜面に形成してあるから、摺動性に欠ける植設ボルトをボルト挿着孔に容易に挿入することができる。
(9)補修箇所の周囲に挿設した植設ボルトは覆い板によって位置が固定されるので、コンクリート製構造物の亀裂が拡大するのを抑えることができる。
(10)植設ボルト及び/又はナットに非金属製材料からなる補強材を混入して高い強度性を持たせたから、コンクリート製構造物の亀裂や損壊の拡大を可及的に防止することができる。
Since the present invention is configured as described above, the following effects can be obtained.
(1) The repaired part of the concrete structure was covered with a non-metallic cover plate, and the cover plate was fixed with mortar-shaped planting bolts and nuts so that no metal material was used . The conventional problem of exploding concrete structures due to the increase in volume of metal bolts and nuts can be completely eliminated, the durability of concrete structures can be greatly enhanced, and no discoloration due to rust red occurs. The situation that damages can also be eliminated. Moreover, the repair cost is low.
(2) Since the cover plate is configured to be supported by the nut on the planting bolt inserted into the concrete structure, the repair work can be performed in a short time and at a low cost.
(3) Since the mortar flows into the locking groove from the mortar introduction groove, the planting bolt can be securely and firmly fixed to the concrete structure.
(4) Since the plurality of locking grooves formed of the annular grooves communicate with each other through the mortar introduction groove, all the locking grooves can be filled with mortar, and the planting bolt is firmly fixed to the concrete structure. Can do.
(5) Since the introduction groove formed in the insertion portion is formed in a state opened at the tip of the cylindrical base body, each locking groove can be filled with mortar quickly and reliably, and the planting bolt is made of concrete. It can be firmly fixed to the structure.
(6) Since the planting bolt is provided with a plurality of posture holding pieces protruding on the outer circumferential surface of the insertion portion in the circumferential direction and the axial direction, it can be easily inserted into a concrete structure lacking slidability. Moreover, since each posture holding piece is engaged with the cured mortar, the planting bolt can be firmly fixed to the concrete structure.
(7) The planting bolt is formed on a cylindrical base body having the same diameter over the entire length, and has a shape in which a plurality of posture holding pieces project from the outer peripheral surface thereof. Therefore, the planting bolt is centered on the axis of the bolt insertion hole. By being held so that the line is along, it is firmly fixed in a stable state, and the cover plate can be reliably supported.
(8) Since the posture holding piece is formed as an upward inclined surface from the front end toward the rear end, the planting bolt lacking slidability can be easily inserted into the bolt insertion hole.
(9) Since the position of the planting bolt inserted around the repair location is fixed by the cover plate, it is possible to prevent the crack of the concrete structure from expanding.
(10) Since a reinforcing material made of a non-metallic material is mixed into the planting bolt and / or nut so as to have high strength, it is possible to prevent the expansion of cracks and damage of the concrete structure as much as possible. it can.

本発明の実施の形態に係るコンクリート製構造物用補修具の全体構成を示す側面図である。It is a side view which shows the whole structure of the repair tool for concrete structures which concerns on embodiment of this invention. 補修具の部分拡大斜視図である。It is a partial expansion perspective view of a repair tool. 補修具の使用手順の説明図である。It is explanatory drawing of the use procedure of a repair tool. 補修具により覆い板を岸壁に密接させた状態の断面図である。It is sectional drawing of the state which made the covering board closely_contact | adhere to a quay with a repair tool. 変形例に係る補修具の側面図である。It is a side view of the repair tool which concerns on a modification.

以下、本発明の実施の形態を図面に基づき詳述する。図において、1は植設ボルトで、該植設ボルト1はコンクリート製構造物である岸壁21にドリルによって穿設したボルト挿着孔22に挿設するものである。2は植設ボルト1を構成する円柱状基体で、該円柱状基体2はセメントを硬化させてモルタル成形したものからなり、全長にわたって略同径に形成してある。3は該円柱状基体2に形成した挿着部で、該挿着部3は円柱状基体2の軸方向中間部位2Aから先端2Bまでの部分とし、その外周面3Aには断面略凵状の環状溝からなる係止溝3B、3B、3Bが軸方向に離間して3個形成してある。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the figure, 1 is a planting bolt, and the planting bolt 1 is inserted into a bolt insertion hole 22 drilled in a quay wall 21 which is a concrete structure. Reference numeral 2 denotes a cylindrical base body constituting the planting bolt 1, and the cylindrical base body 2 is made of mortar molded by hardening cement, and is formed to have substantially the same diameter over the entire length. Reference numeral 3 denotes an insertion portion formed on the columnar base 2, and the insertion portion 3 is a portion from the axial intermediate portion 2A to the tip 2B of the columnar base 2, and the outer peripheral surface 3A has a substantially bowl-shaped cross section. Three locking grooves 3B, 3B, 3B made of annular grooves are formed apart in the axial direction.

4、4、・・・は前記係止溝3B、3B、3Bの間に位置して挿着部3の外周面3Aに周方向及び軸方向に離間して突設した複数の姿勢保持片を示す。該各姿勢保持片4はボルト挿着孔22の軸線に植設ボルト1の中心線が沿うように保持するためのもので、上面4Aを前端から後端に向けて上り傾斜面に形成してボルト挿着孔22に挿入し易いようにしてある。   4, 4,... Are a plurality of posture holding pieces that are positioned between the locking grooves 3 </ b> B, 3 </ b> B, and 3 </ b> B and project from the outer peripheral surface 3 </ b> A of the insertion portion 3 so as to be spaced apart in the circumferential direction and axial direction. Show. Each of the posture holding pieces 4 is for holding the axis of the bolt insertion hole 22 so that the center line of the planting bolt 1 is along the upper surface 4A with an upward inclined surface from the front end toward the rear end. It is designed to be easily inserted into the bolt insertion hole 22.

なお、姿勢保持片4はモルタルで円柱状基体2と一体に成形してもよいし、合成樹脂材で成形して円柱状基体2の成形時に植設してもよい。また、上端側を姿勢保持片4とする3枚の合成樹脂板を周方向に120度離間して形成した保持片構成体を円柱状基体2の成形時にモールドして一体化してもよい。 Note that the posture holding piece 4 may be formed integrally with the columnar substrate 2 with mortar, or may be formed with a synthetic resin material and implanted when the columnar substrate 2 is formed. Alternatively, a holding piece structure formed by separating three synthetic resin plates having the upper end side as the posture holding piece 4 at 120 degrees in the circumferential direction may be molded and integrated when the cylindrical substrate 2 is molded.

5は円柱状基体2に形成した螺着部で、該螺着部5は円柱状基体2の中間部位2Aから後端2Cまでの部分とし、その外周面5Aには全面に雄ねじ5Bが形成してある。
かくして、植設ボルト1はモルタル製の円柱状基体2の中間部位2Aから軸方向先端2B側を挿着部3とし、該挿着部3の外周面3Aに姿勢保持片4を配設し、後端2C側を螺着部5とする構成からなるが、その長さ及び直径は支持する覆い板24の大きさや厚さに対応可能なように種々設定するとよい。
Reference numeral 5 denotes a screwed portion formed on the columnar base 2. The screwed portion 5 is a portion from the intermediate portion 2A to the rear end 2C of the columnar base 2, and a male screw 5B is formed on the entire outer peripheral surface 5A. It is.
Thus, the planting bolt 1 has the insertion part 3 on the axial tip 2B side from the intermediate part 2A of the cylindrical base 2 made of mortar, and the posture holding piece 4 is disposed on the outer peripheral surface 3A of the insertion part 3; Although the rear end 2C side is configured to be the screwing portion 5, the length and diameter thereof may be variously set so as to correspond to the size and thickness of the cover plate 24 to be supported.

6は植設ボルト1に螺着するモルタル製の六角ナットを示す。7は該六角ナット6を構成するナット本体で、該ナット本体7はスパナを掛け易いように外周面7Aを6面に形成し、ボルト嵌合穴7Bに雌ねじ7Cを形成して螺着部5に螺合するようにしたものからなる。8、8は該ボルト嵌合穴7Bの外側に位置してナット本体7の軸方向に貫通して形成したピン挿通孔を示す。該各ピン挿通孔8には回り止めピン9を挿通し、該回り止めピン9の先端側を覆い板24に打ち込むことで、ナット6の緩み防止を図っている。   Reference numeral 6 denotes a mortar hex nut screwed onto the planting bolt 1. Reference numeral 7 denotes a nut main body constituting the hexagonal nut 6. The nut main body 7 has an outer peripheral surface 7A formed on six surfaces so that a spanner can be easily applied, and a female screw 7C is formed in the bolt fitting hole 7B. It consists of what was screwed together. Reference numerals 8 and 8 denote pin insertion holes formed outside the bolt fitting holes 7B and penetrating in the axial direction of the nut body 7. The pin 6 is inserted into each pin insertion hole 8, and the end of the rotation stop pin 9 is driven into the cover plate 24 to prevent the nut 6 from loosening.

本実施の形態からなる補修具は上述の構成からなるが、次にその作用について図3及び図4を参照して説明する。例えば、岸壁21に形成された損壊凹部21Aの補修をする場合、損壊凹部21Aを囲繞するように複数個のボルト挿着孔22、22、・・・をドリルによって穿設し、各ボルト挿着孔22の内部及び岸壁21の補修箇所21Aに注入ガンGによってモルタル23を充填し、植設ボルト1を押圧しながら差し込む。ボルト挿着孔22内のモルタル23が硬化することで、植設ボルト1は岸壁21に強固に挿着した状態になる。   Although the repair tool which consists of this Embodiment consists of the above-mentioned structure, the effect | action is demonstrated with reference to FIG.3 and FIG.4 next. For example, when repairing the damaged recess 21A formed in the quay 21, a plurality of bolt insertion holes 22, 22,... Are drilled so as to surround the damaged recess 21A, and each bolt is inserted. The inside of the hole 22 and the repair location 21A of the quay 21 are filled with mortar 23 with an injection gun G, and the planting bolt 1 is inserted while being pressed. Since the mortar 23 in the bolt insertion hole 22 is cured, the planted bolt 1 is firmly attached to the quay wall 21.

他方、コンクリート製或いは合成樹脂製からなる非金属製の覆い板24に植設ボルト1を挿通するボルト通し孔24A、24A、・・・を形成し、覆い板24を植設ボルト1に挿嵌して六角ナット6を螺合して締着する。このようにして、損壊凹部21Aを覆った状態で覆い板24を岸壁21に密着させることにより、損壊凹部21Aに充填したモルタル23が雨水や降雪に直接晒されることが無いし、損壊凹部21Aの周辺の劣化している部分も覆うので耐久性を持たせることができる。しかも、覆い板24が複数本の植設ボルト1、1、・・・を一体的に連結することにより、岸壁21の亀裂が拡大するのを抑えることもできる。 On the other hand, bolt through holes 24A, 24A,... For inserting the planting bolt 1 are formed in a non-metallic cover plate 24 made of concrete or synthetic resin, and the cover plate 24 is inserted into the planting bolt 1. Then, the hexagon nut 6 is screwed and fastened. In this manner, the cover plate 24 is brought into close contact with the quay 21 while covering the damaged recess 21A, so that the mortar 23 filled in the damaged recess 21A is not directly exposed to rainwater or snowfall. Since the surrounding deteriorated part is also covered, durability can be given. And it can also suppress that the crack of the quay wall 21 expands because the cover board 24 connects the several planting bolts 1, 1, and ... integrally.

上記作用において、摺動性に欠けるコンクリート構造物である岸壁21に摺動性の悪いモルタル製の植設ボルト1を無理なく挿入可能にするために、ボルト挿着孔22は植設ボルト1の直径より幾分大径に設定して形成してある。しかし、かくしては植設ボルト1の略半分の長さの螺着部5が岸壁21から壁面に対して下方に傾斜した状態で突出するため、ボルト通し孔24Aに対する位置がずれて通し難い事態が生じる。そこで、植設ボルト1の外側に複数の姿勢保持片4を周方向及び軸方向に離間して設け、各姿勢保持片4がボルト挿着孔22の内面に接することで植設ボルト1自体の接触面を可及的に小さくすることにより、植設ボルト1はボルト挿着孔22に容易に挿入することができる。しかも、各姿勢保持片4は食い込んだモルタル23が硬化することにより、植設ボルト1は岸壁21により強固に植設した状態にできる。 In the above operation, the bolt insertion hole 22 is formed on the pier 21 so that the mortar implantation bolt 1 having poor slidability can be inserted into the quay 21 which is a concrete structure lacking slidability. The diameter is set somewhat larger than the diameter. However, since the screwed portion 5 that is approximately half the length of the implanted bolt 1 protrudes downward from the quay wall 21 with respect to the wall surface, the position with respect to the bolt through hole 24A is displaced and difficult to pass. Arise. Therefore, a plurality of posture holding pieces 4 are provided on the outer side of the planting bolt 1 so as to be separated from each other in the circumferential direction and the axial direction, and each posture holding piece 4 is in contact with the inner surface of the bolt insertion hole 22 so The implantation bolt 1 can be easily inserted into the bolt insertion hole 22 by making the contact surface as small as possible. In addition, since the mortar 23 that has bitten each posture holding piece 4 is hardened, the planting bolt 1 can be firmly planted by the quay 21.

なお、本実施の形態における係止溝3Bは環状溝に変えて螺旋状溝にしてもよい。このようにしても、螺旋状溝にモルタル23が流入して挿着部3の全面覆うから植設ボルト1を岸壁21に確実に固定することができる。 The locking groove 3B in the present embodiment may be a spiral groove instead of the annular groove. Even if it does in this way, since the mortar 23 flows in into a spiral groove and covers the whole surface of the insertion part 3, the planting bolt 1 can be fixed to the quay 21 reliably.

次に、本実施の形態の変形例を図5に示す。図において、11は植生ボルトで、該植生ボルト11はモルタル製の円柱状基体12に挿着部13と螺着部14を形成したものからなっている。そして、挿着部13の外周面13Aに3個の環状係止溝13B、13B、13Bが形成してある。14は環状係止溝13Bに連通して軸方向に形成した導入溝で、該導入溝14は先端14Aが挿着部13の先端に開口している。   Next, a modification of this embodiment is shown in FIG. In the figure, reference numeral 11 denotes a vegetation bolt, and the vegetation bolt 11 is formed by forming an insertion portion 13 and a screwing portion 14 on a columnar base 12 made of mortar. Three annular locking grooves 13B, 13B, and 13B are formed on the outer peripheral surface 13A of the insertion portion 13. Reference numeral 14 denotes an introduction groove formed in the axial direction in communication with the annular locking groove 13 </ b> B. The introduction groove 14 has a distal end 14 </ b> A opened at the distal end of the insertion portion 13.

本実施の形態によれば、挿着部13に導入溝14を形成したからボルト挿着孔22にモルタル23を充填した状態で挿着部13を挿入した場合、モルタル23が導入溝14を介して全ての環状係止溝13Bに確実に流入するので、植設ボルト11を岸壁21に強固に固定することができる。   According to the present embodiment, since the introduction groove 14 is formed in the insertion portion 13, when the insertion portion 13 is inserted in a state where the bolt insertion hole 22 is filled with the mortar 23, the mortar 23 passes through the introduction groove 14. Therefore, the planting bolt 11 can be firmly fixed to the quay wall 21 because it surely flows into all the annular locking grooves 13B.

なお、本発明において植設ボルト1及び六角ナット6をモルタル成形する際、セメントにグラスファイバーやカーボンファイバー等の高強度の非金属製繊維質材からなる補強材を混合することにより強度性を高めるとよい。   In the present invention, when the planting bolt 1 and the hexagon nut 6 are mortar-molded, the strength is increased by mixing a reinforcing material made of a non-metallic fiber material such as glass fiber or carbon fiber into cement. Good.

1、11 植設ボルト
2、12 円柱状基体
2A 中間部位
2B 先端
2C 後端
3、13 挿着部
3A、13A 外周面
3B、13B 係止溝
4 姿勢保持片
5、14 螺着部
5A 外周面
5B 雌ねじ
6 六角ナット
6B 内周面
6C 雌ねじ
14 導入溝
21 岸壁(コンクリート製構造物)
24 覆い板
DESCRIPTION OF SYMBOLS 1,11 Implanted bolt 2,12 Cylindrical base | substrate 2A Intermediate part 2B End 2C Rear end 3,13 Insertion part 3A, 13A Outer peripheral surface 3B, 13B Locking groove 4 Posture holding piece 5,14 Threaded part 5A Outer peripheral surface 5B Female thread 6 Hexagon nut 6B Inner peripheral surface 6C Female thread 14 Introduction groove 21 Quay wall (concrete structure)
24 Cover plate

Claims (6)

コンクリート製構造物の補修箇所を覆う非金属製の覆い板を該コンクリート製構造物に密接させる補修具であって、前記コンクリート製構造物に挿着して前記覆い板を支持する植設ボルトは、全長にわたって同径の円柱状基体の中間部位から軸方向先端までを挿着部とし、該挿着部は外周面に係止溝を形成すると共に、周方向及び軸方向に離間して複数の姿勢保持片を突設した形状とし、前記コンクリート製構造物から突出する前記中間部位から軸方向他端までを螺着部としてその外周面に雄ねじを形成した構成からなり、該植設ボルトに螺着して前記覆い板を前記コンクリート製構造物に密接させるナットは、前記雄ねじに螺合する雌ねじを内周面に形成したものからなり、該ナット及び植設ボルトはモルタル成形したものであるコンクリート製構造物用補修具。 A repairing tool for bringing a non-metallic covering plate covering a repaired portion of a concrete structure into close contact with the concrete structure, and the planting bolt that is inserted into the concrete structure and supports the covering plate is A cylindrical base having the same diameter over the entire length from the intermediate portion to the tip in the axial direction, and the insertion portion forms a locking groove on the outer peripheral surface and is spaced apart in the circumferential direction and the axial direction. It has a configuration in which a posture holding piece is protruded, and a male screw is formed on the outer peripheral surface of the intermediate portion protruding from the concrete structure and the other end in the axial direction as a screwed portion. The nut that is attached to bring the cover plate into close contact with the concrete structure is formed by forming an internal thread on the inner peripheral surface of the external thread, and the nut and the planting bolt are mortar molded concrete. Doo-made structures for repair tool. 前記係止溝は、前記挿着部に軸方向に離間して配設した複数の環状溝、又は螺旋状溝からなることを特徴とする請求項1記載のコンクリート製構造物用補修具。   The repair tool for a concrete structure according to claim 1, wherein the locking groove includes a plurality of annular grooves or spiral grooves that are spaced apart from each other in the axial direction in the insertion portion. 前記環状溝からなる複数の係止溝は、モルタル導入溝で連通させてあることを特徴とする請求項2記載のコンクリート製構造物用補修具。   The repair tool for a concrete structure according to claim 2, wherein the plurality of locking grooves formed of the annular grooves are communicated with each other through mortar introduction grooves. 前記モルタル導入溝は、先端を前記挿着部の先端に開口した状態に形成してあることを特徴とする請求項3記載のコンクリート製構造物用補修具。   4. The repair tool for a concrete structure according to claim 3, wherein the mortar introduction groove is formed in a state in which a tip is opened at a tip of the insertion portion. 前記姿勢保持片は、上面を前端から後端に向けて上り傾斜面に形成してある
ことを特徴とする請求項1記載のコンクリート製構造物用補修具。
The repair tool for a concrete structure according to claim 1 , wherein the posture holding piece is formed as an upward inclined surface with the upper surface from the front end toward the rear end .
前記植設ボルト及び/又はナットは、非金属製材料からなる補強材を混入してあることを特徴とする請求項1記載のコンクリート製構造物用補修具。   The repair tool for a concrete structure according to claim 1, wherein the planting bolt and / or nut is mixed with a reinforcing material made of a non-metallic material.
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CN111287142A (en) * 2020-03-06 2020-06-16 佛山博发智能科技有限公司 Slope body fastening device for hydraulic engineering

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JP6501547B2 (en) * 2015-02-12 2019-04-17 株式会社 南組 Existing bank body repair structure and repair method of existing bank body
JP6510989B2 (en) * 2016-01-20 2019-05-08 株式会社 南組 Repair method using repair panel support and repair panel support

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JPS63142158A (en) * 1986-12-02 1988-06-14 小林 直彦 Method for injecting repairing chemical liquid in wall surface part of concrete building
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DE19712425A1 (en) * 1997-03-25 1998-10-01 Upat Max Langensiepen Kg Xings
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111287142A (en) * 2020-03-06 2020-06-16 佛山博发智能科技有限公司 Slope body fastening device for hydraulic engineering

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