JP3939702B2 - Rehabilitation of existing pipes - Google Patents

Rehabilitation of existing pipes Download PDF

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JP3939702B2
JP3939702B2 JP2004054732A JP2004054732A JP3939702B2 JP 3939702 B2 JP3939702 B2 JP 3939702B2 JP 2004054732 A JP2004054732 A JP 2004054732A JP 2004054732 A JP2004054732 A JP 2004054732A JP 3939702 B2 JP3939702 B2 JP 3939702B2
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ring body
existing pipe
body unit
ring
shaped
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JP2005240969A (en
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信 片桐
智明 堀
正和 柳川
正明 大日向
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Kubota CI Co Ltd
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Kubota CI Co Ltd
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Description

この発明は、既設管の更生方法に関し、特にたとえば、既設管内に更生材料を投入するために、既設管の一部を掘削または除去して縦孔を建設する必要がなく、かつ残存強度を見込めない既設管に十分な強度を付与する、既設管の更生方法に関する。   The present invention relates to a method for rehabilitating an existing pipe, and in particular, for example, in order to introduce a rehabilitation material into an existing pipe, it is not necessary to excavate or remove a part of the existing pipe to construct a vertical hole and to expect a residual strength. The present invention relates to a method for rehabilitating existing pipes, which gives sufficient strength to existing pipes.

従来の既設管の更生方法の一例が、特許文献１に開示されている。この特許文献１の既設管路の補修方法では、３個の弧状セグメントを接合部材により結合してリング状補強部材を形成する。これをマンホールから既設管内に搬入し、複数のリング状補強部材を連結部材で連結して補強体を組み立てる。そして、補強体の内側に嵌合部材および内面部材を嵌合することにより筒状体とし、既設管と内面部材との間に充填材を注入する。
特開２００１−３１１３８７号公報［Ｅ２１Ｄ ９／０６、Ｆ１６Ｌ ５５／１８］ An example of a conventional method for rehabilitating an existing pipe is disclosed in Patent Document 1. In the repair method of the existing pipe line of this patent document 1, three arc segments are couple | bonded by a joining member, and a ring-shaped reinforcement member is formed. This is carried into the existing pipe from the manhole, and a plurality of ring-shaped reinforcing members are connected by connecting members to assemble the reinforcing body. Then, the fitting member and the inner surface member are fitted inside the reinforcing body to form a cylindrical body, and a filler is injected between the existing pipe and the inner surface member.
JP 2001-311387 A [E21D 9/06, F16L 55/18]

特許文献１の従来技術では、既設管の管軸方向に沿った長い嵌合部材や内面部材を補強体に取り付けなければならない。また、このため、内面部材などを取り付けるための補強体も筒長方向に連結する必要があり、施工性が悪い。   In the prior art of Patent Document 1, a long fitting member and an inner surface member along the tube axis direction of an existing pipe must be attached to the reinforcing body. For this reason, the reinforcing body for attaching the inner surface member or the like also needs to be connected in the cylinder length direction, and the workability is poor.

この内面部材などの取り付けや補強体の連結などの作業は主に既設管内で行われるので、既設管の口径が小さい場合には、これらの作業は特に困難になる。   Since operations such as attachment of the inner surface member and connection of the reinforcing body are mainly performed in the existing pipe, these operations are particularly difficult when the diameter of the existing pipe is small.

それゆえに、この発明の主たる目的は、施工性を向上することができる、既設管の更生方法を提供することである。   Therefore, a main object of the present invention is to provide a method for rehabilitating existing pipes, which can improve workability.

請求項１の発明は、間隔を隔てて配列された複数のリング体が連結部材により連結された複数の補強体を既設管内に順次並べ、そして複数の補強体に跨ってそれらの内側に内面部材を圧接し、それによって、内面部材を補強体に密接配置すると同時に、複数の補強体を内面部材で固定する、既設管の更生方法である。 According to the first aspect of the present invention, a plurality of reinforcing bodies in which a plurality of ring bodies arranged at intervals are connected by a connecting member are sequentially arranged in an existing pipe, and an inner surface member is straddled across the plurality of reinforcing bodies on the inside thereof. the pressed, whereby at the same time you closely arranged inside member to the reinforcing member, securing a plurality of reinforcing members in an inner surface member, a rehabilitation method of the existing pipe.

請求項１の発明では、補強体、たとえば格子状に組んだ鉄筋を筒状にしたもの、あるいは複数のリング体の間隔を隔て、それらの間を複数の連結部材を用いて連結することにより形成されるリング体ユニットをマンホールなどで組み立てる。これを複数個作成し、たとえばマンホールなどから既設管内へ搬入して順次配置していく。このように、各補強体を配列することにより、既設管内における補強体の組立作業が不要になる。 In the invention of claim 1, formed by coupling with a reinforcing member, such as those of the reinforcing bars partnered in a grid and in a cylindrical shape, or at intervals of a plurality of ring members, a plurality of connecting members between them the ring member unit is assembled like in a manhole. A plurality of these are created, for example, carried into an existing pipe from a manhole or the like and sequentially arranged. Thus, by arranging the reinforcing member, the assembly work of the reinforcing member in the existing pipe is not required.

次いで、内面部材を地上からマンホールを通して既設管内に引き込み、既設管内に並べたリング体ユニットの内面に内面部材を密着させながら張り付ける。この内面部材をリング体ユニットに内接させれば、内面部材は管にかかる内圧を分散させてリング体ユニットに伝達するため、更生された既設管（更生管）は高い補強効果を得ることができる。また、内面部材をリング体ユニットに張り付けていくことにより、内面部材をリング体ユニットに嵌合させる必要がなく、それに伴いリング体ユニット同士も連結する必要がない。   Next, the inner surface member is drawn into the existing pipe through the manhole from the ground, and is adhered to the inner surface of the ring body unit arranged in the existing pipe while being in close contact with the inner surface member. If this inner surface member is inscribed in the ring body unit, the inner surface member disperses the internal pressure applied to the pipe and transmits it to the ring body unit, so that the reconstructed existing pipe (rehabilitated pipe) can obtain a high reinforcing effect. it can. Further, by sticking the inner surface member to the ring body unit, it is not necessary to fit the inner surface member to the ring body unit, and accordingly, it is not necessary to connect the ring body units.

この内面部材と既設管との間に充填材を充填して、既設管、リング体ユニットおよび内面部材を一体化させる。これにより、既設管、リング体ユニット、充填材および内面部材が一体となった強度が発生するので、既設管に十分な強度を与えることができる。   A filler is filled between the inner surface member and the existing pipe to integrate the existing pipe, the ring body unit, and the inner surface member. Thereby, since the intensity | strength with which the existing pipe | tube, the ring body unit, the filler, and the inner surface member were united generate | occur | produces, sufficient intensity | strength can be given to an existing pipe | tube.

たとえば、リング体が円周方向に分割されていれば、その分割部品をマンホール開口部からマンホールおよび既設管内へ搬入することができる。また、内面部材を地上から既設管内に引き込むことができることにより、既設管内にリング体ユニットなどの更生材料を投入するための縦孔を建設する必要がない。   For example, if the ring body is divided in the circumferential direction, the divided parts can be carried into the manhole and the existing pipe from the manhole opening. Further, since the inner surface member can be drawn into the existing pipe from the ground, it is not necessary to construct a vertical hole for introducing a rehabilitation material such as a ring body unit into the existing pipe.

請求項２の発明は、内面部材を帯状体とし、帯状体を巻き立てながら補強体に圧接する、請求項１記載の既設管の更生方法である。 The invention of claim 2, the inner surface member is a band-like body, it pressed against the reinforcing member while making up the strip, a rehabilitation method of the existing pipe according to claim 1, wherein.

請求項２の発明では、リング体ユニットの内面に帯状体をたとえば螺旋状に巻き、隣接する内面部材同士を接合用嵌合部材により接続する。   In the invention of claim 2, a belt-like body is wound around the inner surface of the ring body unit, for example, in a spiral shape, and adjacent inner surface members are connected to each other by a joining fitting member.

請求項３の発明は、内面部材を管状体とし、形成工法によって管状体に加圧空気を供給し、管状体を補強体に圧接する、請求項１記載の既設管の更生方法である。 The invention of claim 3, the inner surface member is a tubular member, the pressurized air is supplied to the tubular member by formation method, it presses the tubular body reinforcement a rehabilitation method of the existing pipe according to claim 1, wherein.

請求項３の発明では、管状体をたとえば断面ハート形に折りたたんだ状態でリング体ユニット内に引き込み、空気圧などで拡張させて管体とした後に硬化させて、リング体ユニット内に管状体を内接させる。   In the invention of claim 3, the tubular body is drawn into the ring body unit in a state of being folded into a heart shape, for example, and expanded by air pressure to form a tubular body, and then cured, so that the tubular body is placed inside the ring body unit. Make contact.

請求項４の発明は、内面部材を管状体とし、反転工法によって管状体を空気圧で反転加圧させて補強体に圧接する、請求項１記載の既設管の更生方法である。 A fourth aspect of the present invention, the inside member is a tubular member, pressed against the reinforcing member by pressure inversion pressurized tubular body pneumatically by inversion method, a rehabilitation method of the existing pipe according to claim 1, wherein.

請求項４の発明では、たとえば熱硬化樹脂と高分子繊維などで作った管状体の内面部材を反転加圧させながらリング体ユニット内に挿入して硬化させる。   In the invention of claim 4, for example, an inner surface member of a tubular body made of a thermosetting resin and a polymer fiber is inserted into the ring body unit while being reversely pressurized and cured.

請求項５の発明は、内面部材を補強体に圧接した後、内面部材と既設管との間に充填材を充填する、請求項１ないし４のいずれかに記載の既設管の更生方法である。 The invention according to claim 5 is the method of rehabilitating the existing pipe according to any one of claims 1 to 4, wherein after the inner face member is pressed against the reinforcing body, a filler is filled between the inner face member and the existing pipe. .

請求項５の発明では、既設管内にリング体ユニット同士を連結せず配列させるので、既設管内におけるリング体ユニットの連結作業が不要となる。   In the invention of claim 5, since the ring body units are arranged in the existing pipe without being connected, the connection work of the ring body units in the existing pipe becomes unnecessary.

請求項６の発明は、補強体をリング体ユニットとし、リング体を円周方向に分割した弧状部材が連結部材で連結されたリング体部分どうしを円周方向に連結してリング体ユニットを形成する、請求項１ないし５のいずれかに記載の既設管の更生方法である。 According to the invention of claim 6, the ring body unit is formed by connecting the ring body portions in which the arcuate members obtained by dividing the ring body in the circumferential direction are connected by the connecting members in the circumferential direction. you a rehabilitating method of the existing pipe according to any one of claims 1 to 5.

請求項６の発明では、補強体、たとえば格子状に組んだ鉄筋を筒状にしたものやあるいは上述のリング体ユニットなどを既設管内に配置し、その内面に帯状体を螺旋状に巻き、隣接する内面部材同士を接合用嵌合部材により接続する。そして、既設管と巻き付けた帯状体すなわち内面管との間に充填材を充填する。   In the invention of claim 6, a reinforcing body, for example, a rebar made in a grid shape or a ring unit as described above is arranged in an existing pipe, and a belt-like body is spirally wound on the inner surface thereof, The inner surface members to be connected are connected by a fitting member for joining. Then, a filler is filled between the existing pipe and the wound belt-like body, that is, the inner surface pipe.

補強体を入れることにより更生管の強度を増すことができる。コンクリートやモルタル製の既設管や充填材は圧縮強度が高いが、引張強度は低いので、補強体が引張強度の高い鉄筋であれば充填材などの強度を補うことができる。   The strength of the rehabilitation pipe can be increased by inserting a reinforcing body. Existing pipes and fillers made of concrete or mortar have high compressive strength but low tensile strength. Therefore, if the reinforcement is a reinforcing bar with high tensile strength, the strength of the filler and the like can be supplemented.

この発明によれば、リング体ユニット内に内面部材を密接配置して充填材を投入して一体化するので、リング体ユニットを連結させる必要がなく、施工性に優れる。   According to the present invention, the inner surface member is closely arranged in the ring body unit and the filler is introduced and integrated, so that it is not necessary to connect the ring body unit and the workability is excellent.

この発明の上述の目的，その他の目的，特徴および利点は、図面を参照して行う以下の実施例の詳細な説明から一層明らかとなろう。   The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

この発明の既設管の更生方法に用いられ得る図１に示す鋼鉄製のリング体ユニット１０は、２つのリング体１２を備える。   The steel ring body unit 10 shown in FIG. 1 which can be used in the existing pipe rehabilitation method of the present invention includes two ring bodies 12.

１つのリング体１２は４つの、図２（Ａ）に示す弧状部材１４を含む。４つの弧状部材１４は同形状の弧状の鋼鉄製の平板状部材であり、たとえば幅Ｗ１は４０ｍｍであり、弧の角度θ１は９０度である。その両端１４ａから角度θ２、たとえば１５度の範囲内に２つの貫通孔１６がそれぞれ設けられている。また、弧状部材１４の端１４ａから角度θ２おきに図２（Ｂ）に示す連結部材１８が弧状部材１４に接続される。   One ring body 12 includes four arcuate members 14 shown in FIG. The four arc-shaped members 14 are arc-shaped steel plate-shaped members having the same shape. For example, the width W1 is 40 mm and the arc angle θ1 is 90 degrees. Two through holes 16 are respectively provided in the range of an angle θ2, for example, 15 degrees from both ends 14a. 2B is connected to the arcuate member 14 from the end 14a of the arcuate member 14 at every angle θ2.

連結部材１８も同じく鋼鉄製であり、たとえば幅Ｗ２は４０ｍｍ、長さＬ１は３５０ｍｍの長尺材である。複数、この実施例では７つの連結部材１８は弧状部材１４の弧の中心に対して放射線状に配置し、これらの一端は弧状部材１４に対して垂直方向に弧状部材１４に接続する。同様に連結部材１８の他端は別の弧状部材１４に接続して、図２（Ｃ）に示すように連結部材１８は２つの弧状部材１４を結合してリング体部分２０を形成する。その両端１４ａに接続する連結部材１８ａには端からＬ２、たとえば１００ｍｍの位置にそれぞれ２つの貫通孔２２が形成される。   The connecting member 18 is also made of steel. For example, the connecting member 18 is a long material having a width W2 of 40 mm and a length L1 of 350 mm. A plurality of, in this embodiment, seven connecting members 18 are arranged radially with respect to the arc center of the arcuate member 14, and one end thereof is connected to the arcuate member 14 in a direction perpendicular to the arcuate member 14. Similarly, the other end of the connecting member 18 is connected to another arcuate member 14, and the connecting member 18 joins the two arcuate members 14 to form a ring body portion 20 as shown in FIG. Two through holes 22 are formed in the connecting member 18a connected to the both ends 14a at positions L2, for example, 100 mm from the ends.

リング体部分２０の２つの弧状部材１４はそれぞれ隣接するリング体部分２０の弧状部材１４に図３（Ａ）に示す添接板２４で接続される。添接板２４は鋼鉄製で、その大きさは、たとえば弧状部材１４の３分の１の大きさ、たとえば幅Ｗ３は４０ｍｍ、角度θ３は３０度である。添接板２４は４つの貫通孔２６を有し、この貫通孔２６の位置は、添接板２４を弧状部材１４上に重ねた際に弧状部材１４の貫通孔１６の位置と一致する。   The two arcuate members 14 of the ring body part 20 are connected to the arcuate members 14 of the adjacent ring body parts 20 by means of attachment plates 24 shown in FIG. The splicing plate 24 is made of steel, and its size is, for example, one third of that of the arcuate member 14, for example, the width W3 is 40 mm and the angle θ3 is 30 degrees. The attachment plate 24 has four through holes 26, and the positions of the through holes 26 coincide with the positions of the through holes 16 of the arc member 14 when the attachment plate 24 is stacked on the arc member 14.

図３（Ｂ）に示すように、２つのリング体部分２０を並べる。それらの向き合う連結部材１８ａを重ねて、各連結部材１８ａに形成された貫通孔２２の位置を一致させ、貫通孔２２に高張力ボルト２８を通しナット３０で固定する。隣接する２つの弧状部材１４上に１つの添接板２４を重ねて、添接板２４の２つの貫通孔２６を一方の弧状部材１４の貫通孔１６に一致させ、添接板２４の残る２つの貫通孔２６をもう一方の弧状部材１４の貫通孔１６に一致させる。そして、添接板２４および弧状部材１４の貫通孔２６に高張力ボルト２８をそれぞれ挿し込み、高張力ボルト２８をナット３０で固定する。同様に、４つのリング体部分２０の全部を添接板２４により連結して、図１に示すリング体ユニット１０を形成する。   As shown in FIG. 3B, the two ring body portions 20 are arranged. The connecting members 18 a facing each other are overlapped, the positions of the through holes 22 formed in the respective connecting members 18 a are matched, and high tension bolts 28 are passed through the through holes 22 and fixed with nuts 30. One attachment plate 24 is overlapped on two adjacent arcuate members 14 so that the two through holes 26 of the attachment plate 24 coincide with the through hole 16 of one arcuate member 14, and the remaining 2 of the attachment plate 24 remains. One through hole 26 is made to coincide with the through hole 16 of the other arcuate member 14. Then, high tension bolts 28 are inserted into the contact plate 24 and the through holes 26 of the arcuate member 14, and the high tension bolts 28 are fixed with nuts 30. Similarly, all of the four ring body portions 20 are connected by the attachment plate 24 to form the ring body unit 10 shown in FIG.

弧状部材１４、連結部材１８、添接板２４および高張力ボルト２８などをマンホールの開口部からマンホール内に搬入し、マンホール内で複数のこのようなリング体ユニット１０を組み立て、これらをマンホールから既設管３２内へ搬入する。   The arc-shaped member 14, the connecting member 18, the attachment plate 24, the high tension bolt 28, etc. are carried into the manhole from the opening of the manhole, and a plurality of such ring body units 10 are assembled in the manhole, and these are installed from the manhole. Carry it into the tube 32.

一方、図４（Ａ）および図７に示すように、弧状のスペーサ３４の外面に形成された２つのリブ３６を既設管３２の上面側に向け、スペーサ３４の両端をアンカー３８で既設管３２の上面に固定する。そのスペーサ３４の下に図４（Ｂ）および図４（Ｃ）に示すように、リング体ユニット１０の連結部材１８が既設管３２の管軸に平行になる向きにして、リング体ユニット１０を既設管３２の奥から順次並べていく。   On the other hand, as shown in FIGS. 4A and 7, the two ribs 36 formed on the outer surface of the arc-shaped spacer 34 are directed to the upper surface side of the existing pipe 32, and both ends of the spacer 34 are anchored by the anchor 38. Fasten to the top of the. 4 (B) and 4 (C) below the spacer 34, the ring body unit 10 is placed so that the connecting member 18 of the ring body unit 10 is parallel to the tube axis of the existing pipe 32. It arranges sequentially from the back of the existing pipe 32.

既設管３２内にリング体ユニット１０を並べ終えると、図５に示すように、帯状内面部材４０および接合用嵌合部材４２をリング体ユニット１０の内面に密着させて配置する。   When the ring body units 10 are arranged in the existing pipe 32, the band-shaped inner surface member 40 and the joining fitting member 42 are disposed in close contact with the inner surface of the ring body unit 10, as shown in FIG.

帯状内面部材４０は塩化ビニル樹脂などの樹脂製であり、この実施例では、図６（Ａ）に示すように、たとえば幅Ｗ４が２５０ｍｍ、厚みＴ１が２ｍｍの帯状体である。帯状内面部材４０の一方面に高さＨ１がたとえば１２．５ｍｍのＴ型のリブ４４が形成され、帯状内面部材４０の両端に嵌合溝４６が設けられる。その嵌合溝４６には図６（Ｂ）に示す接合用嵌合部材４２が嵌まる。   The band-shaped inner surface member 40 is made of a resin such as vinyl chloride resin. In this embodiment, as shown in FIG. 6A, for example, a band-shaped body having a width W4 of 250 mm and a thickness T1 of 2 mm. T-shaped ribs 44 having a height H1 of, for example, 12.5 mm are formed on one surface of the band-shaped inner member 40, and fitting grooves 46 are provided at both ends of the band-shaped inner member 40. A fitting member for joining 42 shown in FIG. 6B is fitted in the fitting groove 46.

接合用嵌合部材４２も塩化ビニル樹脂などの樹脂製であり、たとえば幅Ｗ５が３０ｍｍの帯状体である。その一方面に２つの鍔４８および２つの突起５０が左右対称に設けられ、その順番は突起５０、鍔４８、鍔４８、突起５０である。鍔４８の先４８ａは接合用嵌合部材４２の中心を向き、突起５０と鍔４８との間は嵌合用の溝となる。   The joining fitting member 42 is also made of a resin such as vinyl chloride resin, and is, for example, a belt-like body having a width W5 of 30 mm. Two ribs 48 and two protrusions 50 are provided symmetrically on one surface thereof, and the order thereof is the protrusion 50, the flange 48, the flange 48, and the protrusion 50. The tip 48a of the flange 48 faces the center of the connecting fitting member 42, and a gap between the protrusion 50 and the flange 48 is a fitting groove.

帯状内面部材４０のリブ４４付面をリング体ユニット１０に向け、帯状内面部材４０をリング体ユニット１０の連結部材１８上に螺旋状に巻き立てながら、隣接する帯状内面部材４０間を接合用嵌合部材４２で連結して、連続した管内面を形成する。この連結は帯状内面部材４０の嵌合溝４６に接合用嵌合部材４２の突起５０を嵌め、帯状内面部材４０の端部を接合用嵌合部材４２の鍔４８と突起５０との間に嵌めることにより行う。   The surface of the belt-shaped inner surface member 40 with the rib 44 is directed to the ring body unit 10, and the belt-shaped inner surface member 40 is spirally wound on the connecting member 18 of the ring body unit 10, and the adjacent belt-shaped inner surface members 40 are joined for bonding. They are connected by a joint member 42 to form a continuous pipe inner surface. In this connection, the protrusion 50 of the bonding member 42 is fitted into the fitting groove 46 of the band-shaped inner member 40, and the end of the band-shaped inner member 40 is fitted between the flange 48 and the protrusion 50 of the bonding member 42. By doing.

図７に示すように、網状のスペーサ３４に形成された２つのリブ３６の間に充填材注入用ホース（図示せず）を入れ、充填材５２を注入すると充填材５２はスペーサ３４の孔を抜けて既設管３２と螺旋状に巻き付けた帯状内面部材４０との間に満たされる。その先端を既設管３２の奥まで挿入し、充填材注入用ホースをゆっくり抜いていくと、既設管３２全体に充填材５２を注入することができる。   As shown in FIG. 7, when a filler injection hose (not shown) is inserted between two ribs 36 formed in the mesh spacer 34 and the filler 52 is injected, the filler 52 forms holes in the spacer 34. The gap is filled between the existing pipe 32 and the belt-shaped inner surface member 40 wound spirally. The filler 52 can be injected into the entire existing pipe 32 by inserting the tip into the existing pipe 32 and slowly pulling out the filler injection hose.

このように、リング体ユニット１０の内面に帯状内面部材４０を螺旋状に内接させれば、帯状内面部材４０は管３２に作用する内圧を分散させてリング体ユニット１０に伝達するため、既設管３２の補強効果は高まる。   As described above, when the belt-shaped inner surface member 40 is spirally inscribed on the inner surface of the ring body unit 10, the belt-shaped inner surface member 40 disperses the internal pressure acting on the pipe 32 and transmits it to the ring body unit 10. The reinforcing effect of the pipe 32 is enhanced.

また、帯状内面部材４０をリング体ユニット１０に張り付けていくことにより、リング体ユニット１０に圧接される帯状内面部材４０がリング体ユニットを固定するので、帯状内面部材４０をリング体ユニット１０に嵌合させる必要がなく、それに伴いリング体ユニット１０同士も連結する必要がない。このため、リング体ユニット１０の長さを一定の長さにし、リング体ユニット１０をそれぞれ並べられるので、マンホール内などでリング体ユニット１０を組み立てることができ、既設管３２内におけるリング体ユニット１０同士の連結作業およびリング体ユニット１０と帯状内面部材４０との嵌合作業が不要になり、施工性に優れる。特に、比較的口径が小さい管への施工に対しても、施工性が著しく低下することはない。   Further, by attaching the belt-like inner surface member 40 to the ring body unit 10, the belt-like inner surface member 40 pressed against the ring body unit 10 fixes the ring body unit, so that the belt-like inner surface member 40 is fitted to the ring body unit 10. Therefore, it is not necessary to connect the ring body units 10 together. For this reason, since the ring body unit 10 can be assembled in a manhole or the like because the ring body unit 10 can be arranged in a manhole or the like because the ring body unit 10 has a fixed length. The connection work between each other and the fitting work between the ring body unit 10 and the belt-like inner surface member 40 are unnecessary, and the workability is excellent. In particular, the workability is not significantly reduced even when the pipe is relatively small in diameter.

特に鋼などの鉄系金属製リング体ユニット１０は引張強度が高く、引張強度が低いモルタルやコンクリートなどの充填材５２の強度を補うことができるので、充填材５２の厚みを大きくせず、更生管の強度を得ることができる。   Particularly, the iron-based metal ring body unit 10 such as steel has a high tensile strength and can compensate for the strength of the filler 52 such as mortar and concrete having a low tensile strength. The strength of the tube can be obtained.

螺旋状に巻回した帯状内面部材４０および接合用嵌合部材４２を嵌合させながらリング体ユニット１０内面に取り付けられ、水密性に優れる。   It is attached to the inner surface of the ring body unit 10 while fitting the spirally wound belt-like inner surface member 40 and the joining fitting member 42, and is excellent in water tightness.

帯状内面部材４０に形成したリブ４４は充填材５２内に喰い込みアンカー効果を発揮することにより、既設管３２、充填材５２および帯状内面部材４０を一体化した強度のある複合管とすることができる。   The ribs 44 formed on the band-shaped inner surface member 40 can penetrate into the filler 52 and exert an anchor effect, so that the existing tube 32, the filler 52 and the band-shaped inner surface member 40 are integrated into a strong composite tube. it can.

帯状内面部材４０と既設管３２との間に充填材５２を注入し、既設管３２、充填材５２および帯状内面部材４０を一体化するので、断面形状が非円形の既設管３２にも施工することができる。   Since the filler 52 is injected between the band-shaped inner surface member 40 and the existing pipe 32 and the existing pipe 32, the filler 52 and the band-shaped inner surface member 40 are integrated, the cross-sectional shape is also applied to the existing pipe 32. be able to.

弧状部材１４を添接板２４に重ね、弧状部材１４と添接板２４とを高張力ボルト２８で締め付けて固定すると、弧状部材１４と添接板２４との間で大きな摩擦力が働く。この摩擦接合により円周方向に分割された弧状部材１４を結合してリング体ユニット１０を形成しても、リング体ユニット１０の断面剛性が円周方向に一様になり、構造上の弱点箇所がなく、リング体ユニット１０は十分に土圧に耐えることができる。   When the arc-shaped member 14 is overlaid on the attachment plate 24 and the arc-shaped member 14 and the attachment plate 24 are fastened and fixed by the high tension bolts 28, a large frictional force acts between the arc-shaped member 14 and the attachment plate 24. Even if the ring-shaped unit 14 is formed by joining the arc-shaped members 14 divided in the circumferential direction by this friction welding, the cross-sectional rigidity of the ring-shaped unit 10 becomes uniform in the circumferential direction, and structural weak points The ring body unit 10 can sufficiently withstand earth pressure.

なお、１つのリング体ユニット１０は２つのリング体１２を備えるが、３つ以上、この実施例では図８に示す３つのリング体１２を備えてもよい。たとえば、小さい径の既設管を更生する場合、リング体ユニット１０のリング体１２の径は小さく、それに伴いリング体１２を連結する連結部材１８の数も少なくなるため、リング体ユニット１０の重量は小さくなる。したがって、リング体１２の数を増やして、１つのリング体ユニット１０の長さを長くすることができ、既設管３２内へ配列するリング体ユニット１０の数を少なくすることができる。   One ring body unit 10 includes two ring bodies 12, but may include three or more ring bodies 12 shown in FIG. 8 in this embodiment. For example, when an existing pipe having a small diameter is rehabilitated, the diameter of the ring body 12 of the ring body unit 10 is small, and the number of connecting members 18 for connecting the ring body 12 is reduced accordingly. Get smaller. Therefore, the number of ring bodies 12 can be increased, the length of one ring body unit 10 can be increased, and the number of ring body units 10 arranged in the existing pipe 32 can be reduced.

リング体ユニット１０をマンホール内で組み立てたが、既設管路の一部に開口部がある場合などでは、地上でリング体ユニット１０を組み立ててから、それを開口部より既設管路へ搬入してもよい。   The ring body unit 10 is assembled in the manhole, but when there is an opening in a part of the existing pipeline, the ring body unit 10 is assembled on the ground, and then it is carried into the existing pipeline from the opening. Also good.

既設管３２にスペーサ３４を取り付けた後にリング体ユニット１０を配置したが、リング体ユニット１０を配置した後にそのリング体ユニット１０上面と既設管３２内との間にスペーサ３４を差し込んでもよい。この場合、スペーサ３４はリング体ユニット１０により支持されるので、スペーサ３４をアンカー３８で既設管３２に固定しなくてもよい。また、スペーサ３４自体を用いなくてもよい。   Although the ring body unit 10 is disposed after the spacer 34 is attached to the existing pipe 32, the spacer 34 may be inserted between the upper surface of the ring body unit 10 and the existing pipe 32 after the ring body unit 10 is disposed. In this case, since the spacer 34 is supported by the ring body unit 10, the spacer 34 may not be fixed to the existing pipe 32 by the anchor 38. Further, the spacer 34 itself may not be used.

リング体ユニット１０の内面に帯状内面部材４０および接合用嵌合部材４２を密着させたが、これに代えて、図９（Ａ）に示す帯状内面部材５４を用いてもよい。   Although the band-shaped inner surface member 40 and the joining fitting member 42 are brought into close contact with the inner surface of the ring body unit 10, a band-shaped inner surface member 54 shown in FIG. 9A may be used instead.

帯状内面部材５４はたとえば、幅Ｗ６が８０ｍｍ、厚みＴ２が２．６ｍｍの帯状体であり、その一方面にリブ５６、突起５８、嵌合溝６０および傾斜部６２を備える。リブ５６はＴ型であり、たとえば高さＨ２は１６．３ｍｍである。突起５８の先５８ａの厚みは大きく、嵌合溝６０はその内面に突起５８を嵌めこむことができる形状である。傾斜部６２は帯状内面部材５４に対して傾く。   The band-shaped inner surface member 54 is, for example, a band-shaped body having a width W6 of 80 mm and a thickness T2 of 2.6 mm, and includes a rib 56, a protrusion 58, a fitting groove 60, and an inclined portion 62 on one surface thereof. The rib 56 is T-shaped, for example, the height H2 is 16.3 mm. The tip 58a of the protrusion 58 has a large thickness, and the fitting groove 60 has a shape in which the protrusion 58 can be fitted on the inner surface thereof. The inclined portion 62 is inclined with respect to the band-shaped inner surface member 54.

帯状内面部材５４のリブ５６などが形成された面をリング体ユニット１０へ向けて、図９（Ｂ）に示すように、帯状内面部材５４を螺旋状にリング体ユニット１０に巻き立てる。その際、帯状内面部材５４の嵌合溝６０を隣接する帯状内面部材５４の突起５８に嵌め、傾斜部６２の先を隣接する帯状内面部材５４のリブ５６の角に掛ける。   The surface of the belt-shaped inner surface member 54 on which the ribs 56 and the like are formed is directed toward the ring body unit 10, and the belt-shaped inner surface member 54 is spirally wound around the ring body unit 10 as shown in FIG. At that time, the fitting groove 60 of the band-shaped inner surface member 54 is fitted into the protrusion 58 of the adjacent band-shaped inner surface member 54, and the tip of the inclined portion 62 is hung on the corner of the rib 56 of the adjacent band-shaped inner surface member 54.

このように、嵌合溝６０を突起５８に嵌め、かつ傾斜部６２をリブ５６に掛けることにより、帯状内面部材５４同士を二重に嵌合するので、水密性に優れる。   In this manner, the fitting groove 60 is fitted to the protrusion 58 and the inclined portion 62 is hooked on the rib 56, so that the belt-like inner surface members 54 are doubly fitted to each other, so that the watertightness is excellent.

また、帯状内面部材４０または５４を、形成工法による管状内面部材６４に代えてもよい。管状内面部材６４の周方向の一部に押し込み部分６６が形成されている。図１０（Ａ）に示すように、この部分６６を押し板などにより押し込んで、たとえば断面をハート形に縮径加工し、リング体ユニット１０への挿入抵抗を軽減させて、管状内面部材６４をリング体ユニット１０内に挿入する。そして、縮径加工が施された管状内面部材６４をリング体ユニット１０内に挿入した状態で、管状内面部材６４内に所定の圧力の加熱蒸気などを供給する、または、加熱蒸気を供給して管状内面部材６４を軟化させた後、常温の加圧空気を供給することにより断面形状が略円形の管状内面部材６４に復元させて、図１０（Ｂ）に示すように内面部材の管状内面部材６４をリング体ユニット１０に内接するように形成する。   Moreover, you may replace the strip | belt-shaped inner surface member 40 or 54 with the tubular inner surface member 64 by a forming method. A pushing portion 66 is formed in a part of the tubular inner member 64 in the circumferential direction. As shown in FIG. 10 (A), this portion 66 is pushed in with a push plate or the like, and the diameter of the cross section is reduced to a heart shape, for example, and the insertion resistance to the ring body unit 10 is reduced. Insert into the ring unit 10. And in the state which inserted the tubular inner surface member 64 in which the diameter reduction process was performed in the ring body unit 10, heating steam of predetermined pressure is supplied in the tubular inner surface member 64, or heating steam is supplied. After the tubular inner member 64 is softened, normal pressure pressurized air is supplied to restore the tubular inner member 64 having a substantially circular cross-sectional shape, and as shown in FIG. 10B, the tubular inner member of the inner member. 64 is formed so as to be inscribed in the ring body unit 10.

あるいは、反転工法による加熱硬化性樹脂または紫外線硬化性樹脂などを含浸させた管状内面部材６８に代えてもよい。図１１に示すように、既設管３２内に並べたリング体ユニット１０内に管状内面部材６８を空気圧によって反転加圧させながら挿入し、リング体ユニット１０内で加圧状態のまま加熱して、または紫外線を照射して樹脂を硬化することにより、管状内面部材６８をリング体ユニット１０内に形成する。   Or you may replace with the tubular inner surface member 68 impregnated with the thermosetting resin or ultraviolet curable resin by a reversal method. As shown in FIG. 11, the tubular inner surface member 68 is inserted into the ring body unit 10 arranged in the existing pipe 32 while being reversely pressurized by air pressure, and heated in the pressurized state in the ring body unit 10. Alternatively, the tubular inner member 68 is formed in the ring unit 10 by irradiating ultraviolet rays to cure the resin.

このような形成工法または反転工法においても、管状内面部材６４、６８を形成する際に加えられる圧力により、管状内面部材６４、６８はリング体ユニット１０に圧接されて、リング体ユニット１０は固定される。   Also in such a forming method or reversal method, the tubular inner surface members 64 and 68 are pressed against the ring body unit 10 by the pressure applied when the tubular inner surface members 64 and 68 are formed, and the ring body unit 10 is fixed. The

一般的に形成工法および反転工法では、管状内面部材６４、６８の強度だけで内圧に耐える構造となっているため、管状内面部材６４、６８の厚みは大きいが、リング体ユニット１０にこれらの管状内面部材６４、６８を密着させると、圧力の一部もしくは全部をリング体ユニット１０に分担させることができたるため、管状内面部材６４、６８の厚みを薄くすることができる。厚みの大きな管状内面部材６４、６８を内面から外面へ十分に加熱することは困難とされていたが、厚みを薄くすることにより、管状内面部材６４、６８を加熱しやすくなる。   In general, the forming method and the reversing method have a structure that can withstand the internal pressure only by the strength of the tubular inner surface members 64 and 68, so the tubular inner surface members 64 and 68 are thick, but the ring body unit 10 has these tubular members. When the inner surface members 64 and 68 are brought into close contact with each other, a part or all of the pressure can be shared by the ring body unit 10, so that the thickness of the tubular inner surface members 64 and 68 can be reduced. Although it has been difficult to sufficiently heat the thick inner tubular members 64 and 68 from the inner surface to the outer surface, the tubular inner members 64 and 68 can be easily heated by reducing the thickness.

図１２に示す別の実施例のリング体ユニット１０は図１に示すリング体ユニット１０とほぼ同じであるが、リング体部分２０の大きさおよびリング体部分２０同士の連結方法が異なる。これ以外の部分に関しては図１実施例の示す既設管３２の更生方法と同様であるため、説明は省略する。   The ring body unit 10 of another embodiment shown in FIG. 12 is substantially the same as the ring body unit 10 shown in FIG. 1, but the size of the ring body portion 20 and the connection method of the ring body portions 20 are different. Since other parts are the same as the rehabilitation method of the existing pipe 32 shown in FIG. 1 embodiment, the description thereof is omitted.

リング体部分２０はＡ型およびＢ型の２種類あり、これらのリング体ユニット１０の弧状部材１４は同形状であるが、連結部材１８の長さが異なる。   There are two types of ring body portions A and B. The arc member 14 of these ring body units 10 has the same shape, but the length of the connecting member 18 is different.

図１３（Ａ）に示すＡ型弧状部材７０および図１４（Ａ）に示すＢ型弧状部材７２は動形状であり、幅Ｗ７がたとえば４０ｍｍ、弧の角度θ４は１０１．５度の弧状の平板状部材である。その両端から角度θ５、たとえば１３．２５度の範囲にそれぞれ２つの貫通孔７４を有する。この貫通孔７４が形成される範囲から角度θ６、たとえば１５度間隔ごとで、弧状部材７０、７２の弧の中心に対して放射線状に連結部材７６、７８は配列し、弧状部材７０、７２に接続する。   An A-shaped arc member 70 shown in FIG. 13A and a B-shaped arc member 72 shown in FIG. 14A have a moving shape, an arc-shaped flat plate having a width W7 of, for example, 40 mm, and an arc angle θ4 of 101.5 degrees. It is a shaped member. Two through holes 74 are provided in the range of an angle θ5 from the both ends, for example, 13.25 degrees. The connecting members 76 and 78 are radially arranged with respect to the arc centers of the arc-shaped members 70 and 72 at an angle θ6, for example, at intervals of 15 degrees from the range in which the through-hole 74 is formed. Connecting.

図１３（Ｂ）に示すＡ型連結部材７６はたとえば、幅Ｗ８が４０ｍｍ、長さＬ３が３３２ｍｍの長尺材である。一方、図１４（Ｂ）に示すＢ型の連結部材７８はたとえば、幅Ｗ９が４０ｍｍ、長さＬ４が３１４ｍｍの長尺材である。図１３（Ｂ）および図１４（Ｂ）に示すように、Ａ型およびＢ型の連結部材７６、７８はＡ型およびＢ型の弧状部材７０、７２に対して垂直な方向にそれぞれ接続し、連結部材７６、７８は２つの向かい合う弧状部材７０、７２を結合することによりリング体部分８０、８２を形成する。Ａ型リング体部分８０の内幅（２つの弧状部材７０の内面の間隔）Ｓ１は３３２ｍｍであり、外幅（２つの弧状部材７０の外面の間隔）Ｄ１は３５０ｍｍである。Ｂ型リング体部分８２の内幅Ｓ２は３１４ｍｍであり、外幅Ｄ２は３３２ｍｍである。このため、図１５に示すように、Ｂ型リング体部分８２の２つの弧状部材７２はＡ型リング体部分８０の２つの弧状部材７０の間に嵌る。   The A-type connecting member 76 shown in FIG. 13B is, for example, a long material having a width W8 of 40 mm and a length L3 of 332 mm. On the other hand, the B-type connecting member 78 shown in FIG. 14B is, for example, a long material having a width W9 of 40 mm and a length L4 of 314 mm. As shown in FIGS. 13B and 14B, the A-type and B-type coupling members 76 and 78 are respectively connected in a direction perpendicular to the A-type and B-type arcuate members 70 and 72; The connecting members 76, 78 form ring body portions 80, 82 by joining two opposing arcuate members 70, 72. The inner width (the interval between the inner surfaces of the two arc-shaped members 70) S1 of the A-shaped ring body portion 80 is 332 mm, and the outer width (the interval between the outer surfaces of the two arc-shaped members 70) D1 is 350 mm. The inner width S2 of the B-shaped ring body portion 82 is 314 mm, and the outer width D2 is 332 mm. For this reason, as shown in FIG. 15, the two arcuate members 72 of the B-type ring body part 82 fit between the two arcuate members 70 of the A-type ring body part 80.

Ｂ型リング体部分８２の弧状部材７２がＡ型リング体部分８０の弧状部材７０の内側になるようにこれらを重ね、Ａ型弧状部材７０の貫通孔７４の位置とＢ型弧状部材７０の貫通孔７４の位置とを一致させ、各貫通孔７４に高張力ボルト２８を挿し込み、高張力ボルト２８をナット３０で固定する。このように、２つのＡ型リング体部分８０と２つのＢ型リング体部分８２が交互に配列するように連結して、図１２に示すリング体ユニット１０を形成する。   These are stacked so that the arc-shaped member 72 of the B-type ring body portion 82 is inside the arc-shaped member 70 of the A-type ring body portion 80, and the position of the through hole 74 of the A-type arc-shaped member 70 and the penetration of the B-type arc-shaped member 70 The positions of the holes 74 are matched, the high tension bolts 28 are inserted into the respective through holes 74, and the high tension bolts 28 are fixed with the nuts 30. Thus, the two A-type ring body portions 80 and the two B-type ring body portions 82 are connected so as to be alternately arranged to form the ring body unit 10 shown in FIG.

このように、添接板２４（図１、図３）を用いず、弧状部材７０および７２を直接重ね合わせて固定すると、弧状部材７０および７２の間に摩擦力が働き、弧状部材７０、７２の連結によるリング体ユニット１０全体の剛性低下を抑えることができ、かつ部材および組立工数を削減することができる。つまり、１つのリング体ユニット１０に対して、添接板２４を８枚、高張力ボルト２８を２４本、孔加工箇所を４８箇所削減し、リング体ユニット１０自体の重量も約１４％軽量化することができる。   As described above, when the arc members 70 and 72 are directly overlapped and fixed without using the attachment plate 24 (FIGS. 1 and 3), a frictional force acts between the arc members 70 and 72, and the arc members 70 and 72 are fixed. It is possible to suppress a decrease in the rigidity of the entire ring body unit 10 due to the connection, and it is possible to reduce the number of members and assembly man-hours. That is, 8 attachment plates 24, 24 high-tensile bolts 28, 48 holes are reduced, and the weight of the ring unit 10 itself is reduced by about 14% per ring unit 10. can do.

なお、弧状部材７０、７２の間隔Ｓ１、Ｓ２の異なる２種類のリング体部分８０、８２を用いたが、これに代えて、１種類のリング体部分８４を用いてもよい。この場合、図１６に示すように、１つのリング体部分８４の一方の弧状部材７０の内側に連結するリング体部分８４の一方の弧状部材７０の外側を合わせ、他方の弧状部材７０の外側に連結する他方の弧状部材７０の内側を重ねる。重ねた各弧状部材７０の貫通孔７４の位置を一致させて、高張力ボルト２８を通しナット３０で固定する。同様にして、４つのリング体部分８４を連結し、リング体ユニット１０を形成する。   In addition, although two types of ring body portions 80 and 82 having different intervals S1 and S2 between the arc-shaped members 70 and 72 are used, one type of ring body portion 84 may be used instead. In this case, as shown in FIG. 16, the outside of one arcuate member 70 of the ring body part 84 connected to the inside of one arcuate member 70 of one ring body part 84 is aligned, and the outside of the other arcuate member 70 is placed. The inside of the other arcuate member 70 to be connected is overlapped. The positions of the through-holes 74 of the stacked arc-shaped members 70 are matched, and the high-tension bolt 28 is passed through and fixed with the nut 30. Similarly, four ring body portions 84 are connected to form the ring body unit 10.

このように、２種類のリング体部分８４を作成する必要がなく、部品の種類を削減できる。また、部品の順番や種類を選ばなくてもよいので、施工性に優れる。   Thus, it is not necessary to create two types of ring body portions 84, and the types of parts can be reduced. Moreover, since it is not necessary to choose the order and kind of components, it is excellent in workability.

また、平板状の弧状部材７０を用いたが、段差部８６を設けた弧状部材８８を用いてもよい。図１７に示すように、弧状部材８８の一方端に段差部８６を設け、その段差は弧状部材８８の厚みとする。その段差部８６および弧状部材８８のもう一方端８８ａにそれぞれ２つの貫通孔７４を設ける。リング体部分９２の一方弧状部材８８の段差部８６と他方弧状部材８８の段差部８６とが向き合い、弧状部材８８間の幅が広がるように連結部材９０で２つの弧状部材８８を連結する。この場合、４つのリング体部分９２は同形状である。   Further, although the flat arc-shaped member 70 is used, an arc-shaped member 88 provided with a stepped portion 86 may be used. As shown in FIG. 17, a stepped portion 86 is provided at one end of the arc-shaped member 88, and the step is the thickness of the arc-shaped member 88. Two through holes 74 are provided in the stepped portion 86 and the other end 88a of the arc-shaped member 88, respectively. The step part 86 of the one arcuate member 88 of the ring body portion 92 and the step part 86 of the other arcuate member 88 face each other, and the two arcuate members 88 are connected by the connecting member 90 so that the width between the arcuate members 88 is widened. In this case, the four ring body portions 92 have the same shape.

リング体部分９２の弧状部材８８の段差部８６を設けていない一方端８８ａを連結するリング体部分９２の弧状部材８８の段差部８６に嵌めて、弧状部材８８の一方端８８ａの端部を段差部８６の内側に当てると共に、それらの貫通孔７４の位置を一致させ、高張力ボルト２８を通してナット３０で固定する。同様に４つのリング体部分９２を接続して１つのリング体ユニット１０を形成する。   The one end 88a of the ring body 92 that connects the one end 88a of the arc member 88 of the ring body 92 that is not provided with the step 86 is fitted into the step 86 of the arc member 88 of the ring body 92, and the end of the one end 88a of the arc member 88 is stepped. While being applied to the inside of the portion 86, the positions of the through holes 74 are matched and fixed with the nut 30 through the high tension bolt 28. Similarly, four ring body portions 92 are connected to form one ring body unit 10.

このように、弧状部材８８の一方端８８ａの端部を連結する弧状部材８８の段差部８６の内側に当てれば、弧状部材８８が固定されるので、弧状部材８８の連結による剛性低下をさらに抑えることができる。   Thus, since the arc member 88 is fixed if it hits the inner side of the level | step-difference part 86 of the arc member 88 which connects the edge part of the one end 88a of the arc member 88, the rigidity fall by the connection of the arc member 88 is further suppressed. be able to.

さらに、図１８に示すように、リング体部分９４の２つの弧状部材８８を平行にし、弧状部材８８間の幅が一定になるように、２つの弧状部材８８を連結部材９０で接続する。   Further, as shown in FIG. 18, the two arcuate members 88 of the ring body portion 94 are parallel to each other, and the two arcuate members 88 are connected by a connecting member 90 so that the width between the arcuate members 88 is constant.

リング体部分９４の弧状部材８８の段差部８６を設けていない一方端８８ａを連結するリング体部分９４の弧状部材８８の段差部８６に嵌めて、弧状部材８８の端部８８ａを段差部８６の内側に当てると共に、それらの貫通孔７４の位置を一致させ、高張力ボルト２８を通してナット３０で固定する。同様に４つのリング体部分９４を接続して１つのリング体ユニット１０を形成する。   The step part 86 of the arc member 88 of the ring body part 94 which is not provided with the step part 86 is fitted into the step part 86 of the arc member 88 of the ring body part 94, and the end part 88 a of the arc member 88 is connected to the step part 86. While being applied to the inside, the positions of the through holes 74 are matched and fixed with the nut 30 through the high tension bolt 28. Similarly, four ring body portions 94 are connected to form one ring body unit 10.

図１９に示すさらに他の実施例の補強体９６は鋼などの金属であり、たとえば鉄筋である。補強体９６は複数、この実施例では４つのリング体９８、およびリング体９８を連結する連結部材１００を備える。   The reinforcing body 96 of still another embodiment shown in FIG. 19 is a metal such as steel, for example, a reinforcing bar. The reinforcing body 96 includes a plurality of, in this embodiment, four ring bodies 98, and a connecting member 100 that connects the ring bodies 98.

鉄棒を湾曲して両端部を溶接などで接合することによりリング体９８を形成し、複数のリング体９８を平行に間隔を隔てて配列する。このリング体９８の面に対して垂直な方向に連結部材１００を向けてリング体９８に溶接などで固定して、リング体９８を連結する。こうして、補強体９６を形成し、既設管３２内に配置する。その内面に上述の実施例（図５）と同様に帯状内面部材４０および接合用嵌合部材４２を張り付け、巻回した帯状内面部材４０と既設管３２との間に充填材５２を充填して、既設管３２を更生する。   A ring body 98 is formed by bending an iron bar and joining both ends thereof by welding or the like, and a plurality of ring bodies 98 are arranged in parallel at intervals. The ring member 98 is connected by directing the connecting member 100 in a direction perpendicular to the surface of the ring member 98 and fixing it to the ring member 98 by welding or the like. In this way, the reinforcing body 96 is formed and disposed in the existing pipe 32. The inner surface member 40 and the joining fitting member 42 are attached to the inner surface in the same manner as in the above-described embodiment (FIG. 5), and a filler 52 is filled between the wound inner surface member 40 and the existing pipe 32. Then, the existing pipe 32 is rehabilitated.

この発明の既設管の更生方法に用いられ得るリング体ユニットを示す斜視図である。It is a perspective view which shows the ring body unit which can be used for the rehabilitation method of the existing pipe | tube of this invention. （Ａ）は図１実施例のリング体ユニットに含まれる弧状部材を示す平面図であり、（Ｂ）は（Ａ）の弧状部材に接続する連結部材を示す平面図であり、（Ｃ）は２つの弧状部材を連結部材で結合して形成したリング体部分を示す平面図であり、（Ｄ）は（Ｃ）のリング体部分の両端に用いる連結部材を示す平面図である。(A) is a top view which shows the arc member contained in the ring body unit of FIG. 1 Example, (B) is a top view which shows the connection member connected to the arc member of (A), (C) It is a top view which shows the ring body part formed by couple | bonding two arcuate members with a connection member, (D) is a top view which shows the connection member used for the both ends of the ring body part of (C). （Ａ）は図２（Ｂ）のリング体部分を接合する添接板を示す平面図であり、（Ｂ）は（Ａ）の添接板により２つのリング体部分同士を接合した状態を示す平面図である。(A) is a top view which shows the attachment board which joins the ring body part of FIG. 2 (B), (B) shows the state which joined two ring body parts with the attachment board of (A). It is a top view. （Ａ）は図１のリング体ユニットを用いて更生する既設管内にスペーサを取り付けた状態を示す断面図であり、（Ｂ）は図１のリング体ユニットを既設管内に配置した状態を示す断面図であり、（Ｃ）は（Ｂ）の既設管内に複数のリング体ユニットを並べた状態を示す断面図である。(A) is sectional drawing which shows the state which attached the spacer in the existing pipe renovated using the ring body unit of FIG. 1, (B) is a cross section which shows the state which has arrange | positioned the ring body unit of FIG. 1 in the existing pipe It is a figure and (C) is a sectional view showing the state where a plurality of ring body units were arranged in the existing pipe of (B). 図４に示すリング体ユニットの内面に帯状内面部材を密着させて配置した状態を示す断面図である。FIG. 5 is a cross-sectional view illustrating a state in which a belt-shaped inner surface member is disposed in close contact with the inner surface of the ring body unit illustrated in FIG. 4. （Ａ）は図５でリング体ユニットの内面に密着させる帯状内面部材を示す断面図であり、（Ｂ）は（Ａ）の帯状内面部材を接合用嵌合部材で連結した状態を示す断面図である。(A) is sectional drawing which shows the strip | belt-shaped inner surface member closely_contact | adhered to the inner surface of a ring body unit in FIG. 5, (B) is sectional drawing which shows the state which connected the strip | belt-shaped inner surface member of (A) with the fitting member for joining. It is. 既設管と帯状内面部材との間に充填材を満たした状態を示す断面図である。It is sectional drawing which shows the state with which the filler was satisfy | filled between the existing pipe and the strip | belt-shaped inner surface member. この発明の更生方法に用いられ得る別のリング体ユニットを示す平面図である。It is a top view which shows another ring body unit which can be used for the rehabilitation method of this invention. （Ａ）はこの発明の更生方法に用いられ得る別の帯状内面部材を示す断面図であり、（Ｂ）は（Ａ）の内面部材を既設管内のリング体ユニット内面に密着させた状態を示す断面図である。(A) is sectional drawing which shows another strip | belt-shaped inner surface member which can be used for the rehabilitation method of this invention, (B) shows the state which closely_contact | adhered the inner surface member of (A) to the ring body unit inner surface in an existing pipe | tube. It is sectional drawing. （Ａ）はこの発明の更生方法に用いられ得る管状内面部材を既設管内のリング体ユニット内に挿入した状態を示す断面図であり、（Ｂ）は（Ａ）の管状内面部材をリング体ユニット内面に密着させた状態を示す断面図である。(A) is sectional drawing which shows the state which inserted the tubular inner surface member which can be used for the rehabilitation method of this invention in the ring body unit in an existing pipe, (B) is a tubular body member of (A). It is sectional drawing which shows the state closely_contact | adhered to the inner surface. この発明の更生方法に用いられ得る別の管状内面部材をリング体ユニットの内面に密着させた状態を示す断面図である。It is sectional drawing which shows the state which made another tubular inner surface member which can be used for the rehabilitation method of this invention closely_contact | adhered to the inner surface of a ring body unit. この発明の更生方法に用いられ得る別のリング体ユニットを示す平面図である。It is a top view which shows another ring body unit which can be used for the rehabilitation method of this invention. （Ａ）は図１２実施例のリング体ユニットに含まれるＡ型弧状部材を示す平面図であり、（Ｂ）は（Ａ）の弧状部材を連結部材で結合したＡ型リング体部分を示す平面図である。(A) is a top view which shows the A type arcuate member contained in the ring body unit of FIG. 12 Example, (B) is a plane which shows the A type ring body part which couple | bonded the arcuate member of (A) with the connection member. FIG. （Ａ）は図１２実施例のリング体ユニットに含まれるＢ型弧状部材を示す平面図であり、（Ｂ）は（Ａ）の弧状部材を連結部材で結合したＢ型リング体部分を示す平面図である。(A) is a top view which shows the B type arcuate member contained in the ring body unit of FIG. 12 Example, (B) is a plane which shows the B type ring body part which couple | bonded the arcuate member of (A) with the connection member. FIG. 図１３（Ｂ）のＡ型リング体部分と図１４（Ｂ）のＢ型リング体部分とをボルトおよびナットで連結した状態を示す平面図である。It is a top view which shows the state which connected the A type ring body part of FIG. 13 (B), and the B type ring body part of FIG. 14 (B) with the volt | bolt and the nut. この発明の更生方法用いられ得るさらに別のリング体ユニットの一部を示す平面図である。It is a top view which shows a part of another ring body unit which can be used for the rehabilitation method of this invention. この発明の更生方法に用いられ得るさらに別のリング体ユニットの一部を示す平面図である。It is a top view which shows a part of another ring body unit which can be used for the rehabilitation method of this invention. この発明の更生方法用いられ得る他のリング体ユニットの一部を示す平面図である。It is a top view which shows a part of other ring body unit which can be used for the rehabilitation method of this invention. （Ａ）はこの発明の更生方法に用いられ得る別の補強体を示す斜視図であり、（Ｂ）は（Ａ）を既設管内に配置した状態を示す断面図である。(A) is a perspective view which shows another reinforcement body which can be used for the rehabilitation method of this invention, (B) is sectional drawing which shows the state which has arrange | positioned (A) in the existing pipe | tube.

符号の説明Explanation of symbols

１０…リング体ユニット
１２…リング体
３２…既設管
４０、５４…帯状内面部材
５２…充填材
６４、６８…管状内面部材
９６…補強体
DESCRIPTION OF SYMBOLS 10 ... Ring body unit 12 ... Ring body 32 ... Existing pipe 40, 54 ... Band-shaped inner surface member 52 ... Filler 64, 68 ... Tubular inner surface member 96 ... Reinforcement body

Claims (6)

間隔を隔てて配列された複数のリング体が連結部材により連結された複数の補強体を既設管内に順次並べ、そして
前記複数の補強体に跨ってそれらの内側に内面部材を圧接し、それによって、前記内面部材を前記補強体に密接配置すると同時に、前記複数の補強体を前記内面部材で固定する、既設管の更生方法。 A plurality of reinforcing bodies in which a plurality of ring bodies arranged at intervals are connected by a connecting member are sequentially arranged in an existing pipe, and an inner surface member is press-contacted inside them across the plurality of reinforcing bodies , thereby the same time the inside member you closely disposed in the reinforcing member, securing the plurality of reinforcing members in the inside member, rehabilitation methods of the existing pipe. 前記内面部材を帯状体とし、前記帯状体を巻き立てながら前記補強体に圧接する、請求項１記載の既設管の更生方法。 It said inside member is a strip member, you press before Symbol reinforcement while making up the said strip, rehabilitation methods of the existing pipe according to claim 1, wherein. 前記内面部材を管状体とし、形成工法によって前記管状体に加圧空気を供給し、前記管状体を前記補強体に圧接する、請求項１記載の既設管の更生方法。 Said inside member is a tubular body, the formation method to supply pressurized air to said tubular body, you press the tubular body before Symbol reinforcement, rehabilitation methods of the existing pipe according to claim 1, wherein. 前記内面部材を管状体とし、反転工法によって前記管状体を空気圧で反転加圧させて前記補強体に圧接する、請求項１記載の既設管の更生方法。 Said inside member is a tubular member, you press before Symbol reinforcement by pressure inversion pressurized pneumatically said tubular body by an inversion method, rehabilitation methods of the existing pipe according to claim 1, wherein. 前記内面部材を前記補強体に圧接した後、前記内面部材と前記既設管との間に充填材を充填する、請求項１ないし４のいずれかに記載の既設管の更生方法。 The method for rehabilitating an existing pipe according to any one of claims 1 to 4 , wherein a filler is filled between the inner face member and the existing pipe after the inner face member is pressed against the reinforcing body . 前記補強体をリング体ユニットとし、前記リング体を円周方向に分割した弧状部材が前記連結部材で連結されたリング体部分どうしを円周方向に連結して前記リング体ユニットを形成する、請求項１ないし５のいずれかに記載の既設管の更生方法。 It said reinforcement member is a ring member unit, you form the ring body unit connects the ring body is arcuate member that is radially divided ring moieties each other connected by the connecting member in the circumferential direction, The method for rehabilitating an existing pipe according to any one of claims 1 to 5 .
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