JP3963465B2

JP3963465B2 - Installation pipe restoration method and device when renewing main pipe buried underground

Info

Publication number: JP3963465B2
Application number: JP2004095295A
Authority: JP
Inventors: 栄喜木村
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-29
Filing date: 2004-03-29
Publication date: 2007-08-22
Anticipated expiration: 2024-03-29
Also published as: JP2005282671A

Description

本発明は、老朽化した下水道本管等の地下埋設管梁を開削することなく新しい管に置き換える改築推進工事を実施する際に、本管に接続しているサービス管等の取付管の本管との接続部を、非開削で修理復元する方法と該方法の実施に用いる復元装置に関するものであり、土木技術分野に属するものである。 The present invention provides a main pipe for an installation pipe such as a service pipe that is connected to a main pipe when carrying out a reconstruction promotion work for replacing an old underground pipe such as a sewer main pipe with a new pipe without excavating it. The present invention relates to a method for repairing and restoring the connecting portion with the non-open cut and a restoring device used for carrying out the method, and belongs to the civil engineering field.

老朽化した地下埋設管梁を非開削で更新すると共に、該埋設管に接続した取付管をも非開削で接続修復する技術として図９、図１０、図１１に示す従来例が存在する。
該従来例は、特許文献（特開２０００−２５７１４１号公報）で公知となったものであり、第１ステップとして、図９（Ａ）に示す如く、宅地枡入口部に仮ライニング材の基端部を折返して固定し、折返し基端部と未折返し部との隙間に、流体圧を加えて仮ライニング材を取付管内へ反転挿入して取付管内周面全面に加圧硬化し、取付管全内周に密着硬化ライニング体を構築する。 Conventional techniques shown in FIGS. 9, 10, and 11 exist as techniques for renewing an aged underground buried beam by non-opening and repairing a connection pipe connected to the buried pipe by non-opening.
This conventional example is known in the patent document (Japanese Patent Laid-Open No. 2000-25714 1 ). As a first step, as shown in FIG. The end is folded back and fixed, and fluid pressure is applied to the gap between the folded base end and the unfolded portion to reversely insert the temporary lining material into the mounting tube, and pressurizes and cures the entire inner surface of the mounting tube. A close-cured lining body is constructed on the entire inner circumference.

次いで、第２ステップとして、図９（Ｂ）に示す如く、取付管内の既設本管近傍部位を、宅地枡側から挿入するエアパッカ、ゴムパッカ等の止水パッカで閉塞する。
次いで、第３ステップとして、図１０（Ａ）に示す如く、既設本管の切削撤去と新設本管への更新を完了し、第４ステップとして、図１０（Ｂ）の如く、既設本管から切離された取付管端部と新設本管外側近傍に、反転ロープを介して反転挿入する可撓性鞘体により地盤改良体を充填して地盤改良体を造成する。 Next, as a second step, as shown in FIG. 9B, the existing main pipe vicinity portion in the mounting pipe is closed with a water-stopping packer such as an air packer or a rubber packer inserted from the housing land side.
Next, as shown in FIG. 10 (A), as the third step, the cutting and removal of the existing main pipe and the update to the new main pipe are completed, and as the fourth step, from the existing main pipe as shown in FIG. 10 (B). The ground improvement body is formed by filling the ground improvement body with a flexible sheath body that is inserted in reverse through an inversion rope in the vicinity of the separated attachment pipe end and the outside of the newly installed main pipe.

次いで、図１１（Ａ）に示す如く、第５ステップとして、先端のカッタービットを求心ジグ部材から突出させたドリル装置を宅地枡側から挿入して、取付管中央位置で新設本管にマーキング孔（小孔）を穿設し、新設本管内側からマーキング孔を目印として取付管径と同径の連通孔を閉口する。
次いで、図１１（Ｂ）に示す如く、第６ステップとして、本管内のライニングロボットによって、本ライニング材のつばを本管内の連通開口周囲に当接保持しながら、本ライニング材を本管側から取付管内へ反転挿入し、取付管内で本ライニング材を仮ライニング材に積層硬化する。
特開２０００−２５７１４１号公報 Next, as shown in FIG. 11 (A), as a fifth step, a drill device having a tip cutter bit protruding from the centripetal jig member is inserted from the housing land side, and a marking hole is formed in the newly installed main pipe at the center of the mounting pipe. (Small hole) is drilled, and the communication hole having the same diameter as the mounting pipe diameter is closed from the inside of the newly installed main pipe as a mark.
Next, as shown in FIG. 11B, as the sixth step, the lining material is moved from the main side while the collar of the main lining material is held in contact with the periphery of the communication opening in the main tube by the lining robot in the main tube. It is inverted and inserted into the mounting tube, and the lining material is laminated and cured on the temporary lining material in the mounting tube.
JP 2000-257141 A

図９、図１０、図１１に示す従来の地下埋設本管の更新時に於ける取付管の復元方法にあっては、仮ライニング材の張設硬化作業と、地盤改良体充填作業とはその都度反転装置の稼動により実施し、止水パッカの取付管先端部への装着及び引出し作業と、求心ジグ部材を備えたカッタービットの取付管先端部への装着及び引出し作業とを人力で実施するため、工数が多く煩雑であり、しかも、仮ライニング材は取付管の全長付与となる。 9, 10, and 11, in the method of restoring the mounting pipe at the time of renewing the underground underground main pipe, the temporary hardening of the temporary lining material and the ground improvement body filling work each time Performed by operating the reversing device, to manually mount and pull out the water stop packer on the tip of the mounting tube, and mount and pull out the cutter bit with the centripetal jig member on the tip of the mounting tube. The man-hours are complicated and the temporary lining material provides the entire length of the mounting pipe.

本発明は、新規な復元装置を用いることにより、地下埋設本管の更新に伴う取付管の復元を、施工工数面、施工時間面、使用材料面から合理化するものであり、地下埋設本管の更新と取付管の復元とを非開削で、合理的に実施出来る技術を提供するものである。 The present invention rationalizes the restoration of the mounting pipe accompanying the renewal of the underground buried main by using a new restoration device in terms of construction man-hours, construction time, and materials used. It provides technology that can be rationally implemented without renewal and restoration of mounting pipes.

本発明は、例えば図１に示す如く、胴部外周に仮更生材１７を配置した復元装置１を取付管Ｐ内に旧本管Ｐ０近傍まで挿入し、復元装置１の胴部拡径によって仮更生材１７を取付管Ｐ内周面に張着硬化し、次いで、復元装置１の胴部拡径状態下で旧本管Ｐ０を新本管Ｐ１に更新し、次いで、復元装置１の胴部拡径状態下で取付管Ｐ先端の新本管Ｐ１外周部を復元装置１からの薬液吐出によって地盤改良し、次いで、新本管Ｐ１側から新本管Ｐ１と取付管Ｐとの連通孔２４を形成し、復元装置１の縮径抜去後、新本管Ｐ１と取付管Ｐとを更生材３０で一体化するものである。 In the present invention, for example, as shown in FIG. 1, the restoration device 1 in which the temporary rehabilitation material 17 is arranged on the outer periphery of the trunk portion is inserted into the attachment pipe P to the vicinity of the old main pipe P0, and the provisional diameter of the restoration device 1 is temporarily increased. The rehabilitation material 17 is stuck and cured to the inner peripheral surface of the mounting pipe P, and then the old main pipe P0 is updated to the new main pipe P1 under the diameter expansion state of the restoring apparatus 1, and then the trunk section of the restoring apparatus 1 Under the expanded diameter state, the outer periphery of the new main pipe P1 at the tip of the mounting pipe P is ground improved by discharging the chemical solution from the restoring device 1, and then the communication hole 24 between the new main pipe P1 and the mounting pipe P from the new main pipe P1 side. After the diameter reduction of the restoring device 1 is formed, the new main pipe P1 and the attachment pipe P are integrated with the rehabilitation material 30.

尚、仮更生材１７は復元装置１の拡径によって取付管Ｐ内面に当接し、且つ硬化すれば良く、未硬化の合成樹脂の含浸した繊維材で伸長可能な筒状形態が均一な厚さになり好ましい。
また、シート状物であって装置胴部に、胴部の拡径に追従して拡開するように巻いたものでも良い。
また、仮更生材１７は取付管Ｐ先端部の破損抑制域のみとする。
また、更生材３０は、従来の硬化性樹脂を含浸した繊維系の反転挿入更生材の使用が好ましい。
この場合、仮更生材１７は、旧本管Ｐ０の近傍での取付管Ｐに対する部分配置であるが、本管更新時の取付管Ｐ側への破砕作用が、仮更生材１７の存在しない、破砕容易な範囲に集中作用することとなり、取付管Ｐ側の仮更生材１７で仮補修した補強部で破砕作用が抑制出来るため、取付管Ｐの破損が最少限に抑制出来る。 The temporary rehabilitation material 17 only needs to abut on the inner surface of the mounting pipe P by the diameter expansion of the restoring device 1 and be cured, and a cylindrical shape that can be extended with a fiber material impregnated with uncured synthetic resin has a uniform thickness. This is preferable.
Further, it may be a sheet-like material that is wound around the apparatus body so as to expand following the diameter of the body.
Further, the temporary rehabilitation material 17 is limited to the damage suppression region at the tip of the mounting pipe P.
Further, the rehabilitation material 30 is preferably a fiber-based reverse insertion rehabilitation material impregnated with a conventional curable resin.
In this case, the temporary rehabilitation material 17 is a partial arrangement with respect to the mounting pipe P in the vicinity of the old main pipe P0, but the crushing action on the side of the mounting pipe P at the time of main pipe renewal is not present in the temporary rehabilitation material 17. Since the concentrated action is performed in the easy crushing range, the crushing action can be suppressed by the reinforcing portion temporarily repaired by the temporary rehabilitation material 17 on the mounting pipe P side, so that the damage of the mounting pipe P can be suppressed to the minimum.

従って、旧本管Ｐ０の破砕による新本管Ｐ１への更新時も、復元装置１が拡径状態、即ち、硬化した仮更生材１７の内側から拡径方向に応力を及ぼした保護状態であるため、取付管Ｐの仮更生材１７で仮補修された範囲は、硬化仮更生材１７と復元装置１との２重の保護を受け、本管更新時の取付管Ｐ側の破砕は仮更生材１７の存在しない旧本管Ｐ０近傍の破砕の容易な範囲に留まる。
また、地盤改良時も、復元装置１の拡径状態下での復元装置１からの薬液吐出で実施するため、吐出薬液の取付管Ｐ内への逆流侵入が抑制出来、復元装置前方周囲の破砕域への好適、且つ迅速な地盤改良となる。 Therefore, also at the time of updating to the new main pipe P1 by crushing the old main pipe P0, the restoring device 1 is in a diameter-expanded state, that is, a protected state in which stress is applied in the diameter-expanding direction from the inside of the hardened temporary rehabilitation material 17. Therefore, the range temporarily repaired with the temporary rehabilitation material 17 of the mounting pipe P is subjected to double protection of the cured temporary rehabilitation material 17 and the restoration device 1, and the crushing on the side of the mounting pipe P when the main pipe is renewed is temporarily rehabilitated. It remains within an easy range of crushing near the old main pipe P0 where the material 17 is not present.
In addition, when the ground is improved, since the chemical solution is discharged from the restoration device 1 in the expanded state of the restoration device 1, the backflow intrusion of the discharged chemical solution into the mounting pipe P can be suppressed, and the front periphery of the restoration device is crushed. It will be suitable for the area and quick ground improvement.

また、本発明の取付管復元方法にあっては、図８（Ｂ）に示す如く、本管側から新本管Ｐ１と取付管Ｐとの連通孔２４を形成した後、新本管Ｐ１と取付管Ｐ端部との間に、図８（Ｃ）の如く、補助管２８を介在させるのが好ましい。
この場合、補助管外周面には、戻り防止用の突起２９を付設するのが好ましい。 Further, in the mounting pipe restoring method of the present invention, as shown in FIG. 8B, after the communication hole 24 between the new main pipe P1 and the mounting pipe P is formed from the main pipe side, the new main pipe P1 and As shown in FIG. 8C, it is preferable to interpose the auxiliary pipe 28 between the end of the attachment pipe P.
In this case, it is preferable to attach a protrusion 29 for preventing return to the outer peripheral surface of the auxiliary pipe.

取付管Ｐ先端と本管外周間は本管更新時の破砕帯であり、且つ、薬液で地盤硬化された領域ではあるが、補助管２８で本管Ｐ１と取付管Ｐとを接続すれば、補助管２８が、本補修としての更生材３０の反転挿入用平滑面の提供と共に、取付管の欠落による強度不足の解消となり、取付管Ｐと本管Ｐ１との接続部が平滑、且つ十分な強度を備えたものとなる。 Between the tip of the mounting pipe P and the outer circumference of the main pipe is a crushing zone at the time of main pipe renewal, and is an area hardened by the chemical solution, but if the main pipe P1 and the mounting pipe P are connected by the auxiliary pipe 28, The auxiliary pipe 28 provides a smooth surface for reversal insertion of the rehabilitation material 30 as the main repair, and also solves the lack of strength due to the lack of the mounting pipe, and the connecting portion between the mounting pipe P and the main pipe P1 is smooth and sufficient. It will have strength.

また、本発明の取付管復元方法にあっては、図８（Ｄ）の如く、更生材３０がつば３０ａを備え、新本管Ｐ１と補助管２８と取付管Ｐ内へ反転挿入張着して、新本管Ｐ１と取付管Ｐとを一体化するのが好ましい。
旧本管Ｐ０を新本管Ｐ１に更新した際に、取付管Ｐの新本管Ｐ１近傍は破砕域となっており、取付管Ｐの接続部は地下水浸入阻止の面からも、更生材３０による強固、且つ完全な接続が必要である。
Further, in the mounting pipe restoring method of the present invention, as shown in FIG. 8D, the rehabilitation material 30 is provided with a collar 30a, and is inserted into the new main pipe P1, the auxiliary pipe 28, and the mounting pipe P by being inverted and stretched. Thus, it is preferable to integrate the new main pipe P1 and the mounting pipe P.
When the old main pipe P0 is updated to the new main pipe P1, the vicinity of the new main pipe P1 of the mounting pipe P is a crushing zone, and the connection part of the mounting pipe P is also a rehabilitation material 30 from the viewpoint of preventing intrusion of groundwater. A strong and complete connection is required .

更生材３０の挿入は、宅地枡３６側から反転する方法（特許第３４５０７８２号）と図１１（Ｂ）の如く、本管側から反転する方法があるが、つば３０ａは、未硬化の更生材を使い、取付管Ｐ内で硬化させて新本管Ｐ１に接着させる方が、止水性を高める上で好ましい。
Insertion of rehabilitation material 30 includes a method of reversing from the housing ridge 36 side (Japanese Patent No. 3450782) and a method of reversing from the main side as shown in FIG. 11B, but the collar 30a is an uncured rehabilitation material. It is preferable to harden it in the attachment pipe P and adhere it to the new main pipe P1 in order to increase the water-stopping property .

また、本発明にあっては、新本管Ｐ１側からの連通孔２４の形成に先立って、地盤改良後、復元装置１の拡径状態の下で復元装置１の中心部からドリルカッター６０を突出させて新本管Ｐ１にパイロット小孔Ｈｐを穿設するのが好ましい。
復元装置１が拡径状態であれば、ドリルカッター６０の突出位置も固定されて所望のパイロット小孔Ｈｐの取付管Ｐ中心位置での穿設が容易であり、固定状態の復元装置１から内在するドリルカッター６０を突出させるだけの作業であるため、従来（図１１）のマーキング孔穿孔時の、煩雑な求心ジク部材の挿入運転施工も不要であって、パイロット小孔Ｈｐの穿孔作業が短時間で、且つ容易に実施出来、連通孔２４形成が容易となる。
In the present invention, prior to the formation of the communication hole 24 from the new main pipe P1 side, after the ground improvement, the drill cutter 60 is placed from the center of the restoring device 1 under the expanded diameter state of the restoring device 1. It is preferable to project the pilot small hole Hp in the new main pipe P1 by projecting .
If the restoring device 1 is in an expanded state, the projecting position of the drill cutter 60 is also fixed, and it is easy to drill a desired pilot small hole Hp at the center position of the mounting pipe P. Therefore, it is not necessary to perform the complicated operation of inserting the centripetal member at the time of drilling the marking hole, and the drilling operation of the pilot small hole Hp is short. It can be carried out easily in time, and the communication hole 24 can be easily formed .

また、本発明の取付管復元方法にあっては、仮更生材１７は、旧本管Ｐ０から残存域Ｌｒを保って取付管Ｐ先端部に張設するのが好ましい。
残存域Ｌｒとは、図７（Ｂ）の如く、改築推進時の破砕領域Ｄ（地山が乱される範囲）から仮補修域までの長さで、改築推進の方法が旧本管Ｐ０を土中に残すか否か、また新本管Ｐ１が旧本管Ｐ０と同径か増径かによって変化する。
残存域Ｌｒの寸法は、旧本管Ｐ０径が２５０mmであれば、Ｌｒを５０mm前後とすれば有効に実施出来る。
この場合、仮更生材１７は取付管Ｐの残存域Ｌｒを保った４０〜５０cmの範囲に適用するのが好ましい。
旧本管Ｐ０の更新破砕作用の取付管Ｐ側への伝播は、取付管Ｐに破砕の容易な残存域Ｌｒを配置しておくことにより残存域止りと出来、後工程での地盤改良域も残存域Ｌｒの選定で決定出来る。
従って、残存域Ｌｒ設定により、取付管Ｐ側の余分な破砕が抑制出来、効果的な地盤改良域の設定も容易となり、取付管Ｐの復元施工が合理的に実施出来る。 Moreover, in the attachment pipe restoration method of the present invention, it is preferable that the temporary rehabilitation material 17 is stretched on the tip of the attachment pipe P while maintaining the remaining region Lr from the old main pipe P0 .
As shown in FIG. 7B, the remaining area Lr is the length from the crushing area D (range where the natural ground is disturbed) to the temporary repair area at the time of renovation promotion. It changes depending on whether or not to leave in the soil, and whether the new main pipe P1 has the same diameter or an increased diameter as the old main pipe P0 .
The size of the remaining area Lr can be effectively implemented if the old main pipe P0 diameter is 250 mm and Lr is about 50 mm .
In this case, it is preferable to apply the temporary rehabilitation material 17 in a range of 40 to 50 cm in which the remaining area Lr of the attachment pipe P is maintained .
Propagation of the old main pipe P0 to the mounting pipe P can be stopped by placing a residual area Lr that can be easily crushed in the mounting pipe P. It can be determined by selecting the remaining area Lr .
Therefore, by setting the remaining area Lr, excessive crushing on the side of the mounting pipe P can be suppressed, an effective ground improvement area can be easily set, and the restoration work of the mounting pipe P can be performed rationally .

また、取付管復元方法の発明の実施に好適な装置は、例えば図２に示す如く、中央の貫通孔Ｈａ及び後方への突出パイプＰａを備えた先端部１Ａと、中央の貫通孔Ｈｂ及び前方への突出パイプＰｂを備えた後端部１Ｂとを、突出パイプＰａと突出パイプＰｂに嵌着した可撓ホース１３で接続し、先端部１Ａ外周と後端部１Ｂ外周をゴムチューブ１６で空密的に連結して可撓ホース１３とゴムチューブ１６間に空気室１５を形成し、中央の貫通孔Ｈａ，Ｈｂ内には、先端にドリルカッター６０を備えたフレキシブルカッター装置６を出入可能、且つ、回転可能に配置すると共に、ゴムチューブ１６の内側には注入ホース８´を介した薬液吐出経路を配置し、後端部１Ｂの後部から空気室１５へ空気経路５１を配置したものである。 Further, as shown in FIG. 2, for example, the apparatus suitable for carrying out the invention of the mounting pipe restoring method includes a front end portion 1A having a central through hole Ha and a rearward projecting pipe Pa, a central through hole Hb and a front side. The rear end 1B provided with the projecting pipe Pb is connected to the projecting pipe Pa and the flexible hose 13 fitted to the projecting pipe Pb, and the outer periphery of the front end 1A and the outer periphery of the rear end 1B are emptied by the rubber tube 16. Closely connected to form an air chamber 15 between the flexible hose 13 and the rubber tube 16, and a flexible cutter device 6 having a drill cutter 60 at the tip can be put in and out of the central through holes Ha and Hb. And while arrange | positioning so that rotation is possible, the chemical | medical solution discharge path via injection hose 8 'is arrange | positioned inside the rubber tube 16, and the air path 51 is arrange | positioned from the rear part of the rear-end part 1B to the air chamber 15. FIG. .

尚、先端部１Ａ及び後端部１Ｂは、剛性材料で製作した物であり、典型的には金属製である。
また、可撓ホース１３は、曲げ弾性を備えたパイプであれば良く、典型的には天然ゴムホースである。
また、フレキシブルカッター装置６は、パワーケーブルガイド６４内に回転動力伝達用の可撓性パワーケーブル６３を備え、パワーケーブル先端にドリルカッター６０を着脱するのが好都合である。 The front end portion 1A and the rear end portion 1B are made of a rigid material, and are typically made of metal.
The flexible hose 13 may be a pipe having bending elasticity, and is typically a natural rubber hose.
Moreover, the flexible cutter device 6 includes a flexible power cable 63 for transmitting rotational power in the power cable guide 64, and it is convenient to attach and detach the drill cutter 60 to the tip of the power cable.

そして、取付管復元装置は、標準サイズでは全長１ｍ位で、前端部１Ａと後端部１Ｂとを連結する中間の胴部分Ｂｄは７０cm前後であって、前端部１Ａと後端部１Ｂ間に介在する可撓ホース１３、注入ホース８´、ゴムチューブ１６、及び可撓性パワーケーブル６３を内在する可撓性のパワーケーブルガイド６４が全て可撓性であるため、取付管Ｐが屈曲していても復元装置１の挿入が可能であり、ゴムチューブ１６上にシート状の仮更生材１７を巻き付けて所定位置まで人力挿入可能であり、取付管Ｐの旧本管Ｐ０に対する残存域Ｌｒを保った形態での仮更生による仮保護が可能となる。 The attachment pipe restoring device has a total length of about 1 m in the standard size, and an intermediate body portion Bd connecting the front end portion 1A and the rear end portion 1B is about 70 cm, and is between the front end portion 1A and the rear end portion 1B. Since the flexible power cable guide 64 containing the flexible hose 13, the injection hose 8 ′, the rubber tube 16, and the flexible power cable 63 are all flexible, the mounting pipe P is bent. However, the restoration device 1 can be inserted, and the sheet-like temporary rehabilitation material 17 can be wound around the rubber tube 16 and manually inserted up to a predetermined position, and the remaining area Lr of the mounting pipe P relative to the old main pipe P0 can be maintained. Temporary protection is possible by temporary rehabilitation.

しかも、復元装置１は、空気室１５への空気注入によるゴムチューブ１６の拡径及び取付管Ｐ内壁面への圧接によって、取付管Ｐ内で位置固定出来るため、取付管復元装置１の拡径保持によって、本管側での旧本管Ｐ０から新本管Ｐ１への破砕更新時の、取付管Ｐの仮更生材１７へのゴムチューブ１６の圧接による保護作用を発揮し、地盤改良のための薬液吐出作業も、新本管Ｐ１へのパイロット小孔Ｈｐ穿孔作業も、拡径固定状態の復元装置１からの作業であるため、取付管Ｐの復元施工は、作業切換え時間の合理化の下に、所定どおり安定的に達成する。 Moreover, since the restoring device 1 can be fixed in position within the mounting pipe P by expanding the diameter of the rubber tube 16 by injecting air into the air chamber 15 and pressing against the inner wall surface of the mounting pipe P, the diameter of the mounting pipe restoring device 1 is increased. By holding, when the crushing renewal from the old main pipe P0 to the new main pipe P1 on the main pipe side, the protective action by the pressure contact of the rubber tube 16 to the temporary rehabilitation material 17 of the mounting pipe P is demonstrated, and the ground is improved. Both the chemical solution discharge work and the pilot small hole Hp drilling work to the new main pipe P1 are work from the restoring device 1 in the expanded diameter fixed state. Therefore, the restoration work of the mounting pipe P is under the rationalization of the work switching time. In addition, it achieves stably as prescribed.

従って、本発明復元装置１は、仮補修機能、本管更新時の取付管保護機能、地盤改良機能及びパイロット小孔Ｈｐ穿孔機能を備えたものであり、１つの装置で多工程の施工が実施出来るため、地下埋設本管更新時の取付管復元工事が非開削の下に、且つ、各工程の切換え準備作業時間が短縮合理化の下に実施出来、取付管復元工事は、施工費用及び工事時間の低減、合理化の下に実施出来る。 Therefore, the restoration device 1 of the present invention has a temporary repair function, a mounting pipe protection function at the time of main pipe renewal, a ground improvement function, and a pilot small hole Hp drilling function, and multi-step construction is carried out with one apparatus. Therefore, it is possible to carry out the restoration work of the installation pipe at the time of renewal of the underground buried main pipe under non-open cutting and the reduction preparation time of each process and rationalization. Can be implemented under the reduction and rationalization.

また、本発明装置は、薬液吐出経路が、先端部１Ａの貫通孔１９ａと後端部１Ｂの貫通孔１９ｂを注入ホース８´で接続し、後端部１Ｂの貫通孔１９ｂが後端に供給ホース連結用のニップル１４を備えているのが好ましい。
この場合、注入ホース８´は、耐薬品性のホースなら良く、典型的にはウレタンホースである。
従って、復元装置１は、胴部での屈曲可撓性を保持した状態で、外部からの薬液が装置１の先端部貫通孔１９ａの前端から吐出可能となり、装置先端部１Ａ外周部、即ち、取付管Ｐと新本管Ｐ１との間の破砕域、の地盤改良が復元装置１への薬液の供給のみで容易に実施出来る。 Further, in the apparatus of the present invention, the chemical solution discharge path connects the through hole 19a of the front end portion 1A and the through hole 19b of the rear end portion 1B with the injection hose 8 ', and the through hole 19b of the rear end portion 1B is supplied to the rear end. A nipple 14 for connecting the hose is preferably provided.
In this case, the injection hose 8 'may be a chemical resistant hose, and is typically a urethane hose.
Therefore, the restoring device 1 can discharge the chemical solution from the outside from the front end of the tip portion through-hole 19a of the device 1 while maintaining the bending flexibility at the body portion, and the outer peripheral portion of the device tip portion 1A, that is, The ground improvement of the crushing area between the attachment pipe P and the new main pipe P1 can be easily performed only by supplying the chemical solution to the restoring device 1.

また、本発明復元装置にあっては、薬液吐出経路を２系統とするのが好ましい。
この場合、一方の経路からの水ガラス系主剤と、他方の経路からの塩化カルシウム系硬化剤を、別々に吐出して復元装置１の外部の混合域で瞬時に硬化させることにより、地盤改良域での地山崩壊が最少限に抑制出来、地盤改良剤としての薬液の準備、及び所定域への迅速な地盤改良施工の実施が容易となる。 Moreover, in this invention restoration | reconstruction apparatus, it is preferable that a chemical | medical solution discharge path | route is made into 2 systems.
In this case, the ground improvement region is obtained by discharging the water glass-based main agent from one route and the calcium chloride-based curing agent from the other route separately and curing them instantaneously in the mixing region outside the restoration device 1. Therefore, it is possible to suppress the collapse of the natural ground at a minimum, and it is easy to prepare a chemical solution as a ground improvement agent and to perform a rapid ground improvement construction to a predetermined area.

また、本発明復元装置１は、図２に示す如く、先端部１Ａが頂部にボルト締着により着脱自在に止着したカバー１Ｃを備え、カバー１Ｃが中央にドリル案内孔Ｈｃを備えているのが好ましい。
ドリルカッター６０は消耗品であるため取替えが必要であるが、カバー１Ｃの着脱操作によってドリル装置の先端のドリルカッター６０のメンテナンスが容易となり、且つ、カバー１Ｃのドリル案内孔Ｈｃによってドリルカッター６０の定位置回転及び出没作用がスムーズに実施出来る。 Further, as shown in FIG. 2, the restoring device 1 of the present invention is provided with a cover 1C in which a tip 1A is detachably fastened to the top by bolt fastening, and the cover 1C is provided with a drill guide hole Hc in the center. Is preferred.
Since the drill cutter 60 is a consumable part, it needs to be replaced. However, maintenance of the drill cutter 60 at the tip of the drill device is facilitated by attaching and detaching the cover 1C, and the drill guide hole Hc of the cover 1C allows the drill cutter 60 to be replaced. Rotating in place and moving in and out can be performed smoothly.

また、本発明復元装置１は、図４に示す如く、フレキシブルカッター装置６が、先端のドリルカッター６０と、ドリルカッター６０基端に着脱自在に止着したコネクター６１と、コネクター６１の嵌入孔Ｈ６３に着脱自在に止着する可撓性のパワーケーブル６３とを備えたものが好ましい。
この場合、コネクター６１が前端部１Ａの貫通孔Ｈａを軸受として回転し、ドリルカッター６０は、カバー１Ｃの案内孔Ｈｃとコネクター６１との２点支持形態のぶれの無い回転穿孔作用を奏し、コネクター６１の上流側の可撓性のパワーケーブル６３は、可撓性で非回転のパワーケーブルガイド６４で被覆保護するとことにより、復元装置１の屈曲形態配置でも、平滑なパイロット小孔Ｈｐ穿孔作業が可能となる。 Further, as shown in FIG. 4, the restoring device 1 of the present invention includes a flexible cutter device 6 having a drill cutter 60 at the tip, a connector 61 detachably fixed to the base end of the drill cutter 60, and a fitting hole H 63 of the connector 61. It is preferable to have a flexible power cable 63 that is detachably fixed to the cable.
In this case, the connector 61 rotates using the through hole Ha of the front end portion 1A as a bearing, and the drill cutter 60 performs the rotation drilling operation without blurring of the two-point support form of the guide hole Hc of the cover 1C and the connector 61. The flexible power cable 63 on the upstream side of 61 is covered and protected by a flexible and non-rotating power cable guide 64, so that even if the restoring device 1 is bent, the smooth pilot small hole Hp can be drilled. It becomes possible.

また、本発明のフレキシブルカッター装置６にあっては、図２、図５に示す如く、コネクター６１が外周に油だめ溝Ｇ６２を備え、且つ、貫通孔Ｈａの後端の支持環縁Ｆ１と前端のカバー１Ｃ間で摺動自在、且つ、回動自在であるのが好ましい。
この場合、コネクター６１先端がカバー１Ｃ内面に当接した状態がドリルカッター６０の最大突出長となり、コネクター６１の中央部の係止フランジＦ６１が突出パイプＰａ後端の支持環縁Ｆ１に当接した状態がドリルカッター６０の最大後退位置となるため、ドリルカッター６０の不作用状態ではドリルカッター６０をカバー１Ｃ先端から突出しないように寸法決定するのが好ましい。 Further, in the flexible cutter device 6 of the present invention, as shown in FIGS. 2 and 5, the connector 61 has a sump groove G62 on the outer periphery, and the support ring edge F1 and the front end of the rear end of the through hole Ha. It is preferable that the cover 1C is slidable and rotatable between the covers 1C.
In this case, the state in which the tip of the connector 61 is in contact with the inner surface of the cover 1C is the maximum protruding length of the drill cutter 60, and the locking flange F61 at the center of the connector 61 is in contact with the support ring F1 at the rear end of the protruding pipe Pa. Since the state is the maximum retracted position of the drill cutter 60, it is preferable to determine the dimensions so that the drill cutter 60 does not protrude from the tip of the cover 1C when the drill cutter 60 is inactive.

従って、ドリルカッター６０は、コネクター６１の油だめ溝Ｇ６２への潤滑油（グリース）付与の下での貫通孔Ｈａ内での平滑な回転及び前進により本管Ｐ１への適切なパイロット小孔Ｈｐの穿設が可能となり、地盤改良時等、ドリルカッター６０の不作用時には、ドリルカッター６０を貫通孔Ｈａ内に後退させてカバー１Ｃの案内孔Ｈｃを紙テープ等で閉じておくことにより案内孔Ｈｃ内への土砂等の侵入が防止出来、取付管復元装置１のスムーズな運用が可能となる。 Therefore, the drill cutter 60 is provided with an appropriate pilot small hole Hp to the main pipe P1 by smooth rotation and advance in the through hole Ha under the application of lubricating oil (grease) to the oil sump groove G62 of the connector 61. When the drill cutter 60 is inactive, such as when the ground is improved, the drill cutter 60 is retracted into the through hole Ha and the guide hole Hc of the cover 1C is closed with a paper tape or the like to close the guide hole Hc. It is possible to prevent intrusion of earth and sand into the mounting pipe, and smooth operation of the mounting pipe restoring device 1 is possible.

本発明復元方法によれば、取付管Ｐの旧本管Ｐ０との接続部に残存域Ｌｒを保って仮更生材１７で取付管Ｐ前部を保護し、更に復元装置の拡径状態の下に旧本管Ｐ０を新本管Ｐ１に更新するため、本管更新時の破砕作用による取付管Ｐ側の損壊が所定残存域Ｌｒ内に、且つ最少限に抑制出来、適切な地盤改良が可能となって、取付管Ｐの復元施工が合理的に実施出来る。 According to the restoration method of the present invention, the remaining area Lr is maintained at the connection portion of the attachment pipe P with the old main pipe P0, the front portion of the attachment pipe P is protected by the temporary rehabilitation material 17, and further, the diameter of the restoration device is reduced. Since the old main pipe P0 is updated to the new main pipe P1, the damage on the side of the mounting pipe P due to the crushing action at the time of main pipe renewal can be suppressed to the minimum within the predetermined residual area Lr, and appropriate ground improvement is possible. Thus, the restoration work of the mounting pipe P can be carried out rationally.

しかも、本管更新前の取付管側の仮更生材１７による仮補修施工も、本管更新後の取付管前方の破砕領域Ｄへの地盤改良施工も、引続く新本管Ｐ１へのパイロット小孔Ｈｐの穿孔施工も、取付管復元装置１を拡径状態で、取付管Ｐを支承保護した状態の下に各作業の切換えで遂行するため、各施工段階の切換えが合理的に実施出来、施工時間の短縮化が可能となり、施工費も低減出来る。 Moreover, the temporary repair work with the temporary rehabilitation material 17 on the mounting pipe side before the main pipe renewal, the ground improvement work on the crushing region D in front of the mounting pipe after the main pipe renewal, the pilot pilot to the new main pipe P1 continues. Drilling of the hole Hp is also performed by switching each work under the condition that the mounting pipe restoring device 1 is in the expanded state and the mounting pipe P is supported and supported, so that each construction stage can be switched rationally. Construction time can be shortened and construction costs can be reduced.

また、取付管の復元方法発明に採用する復元装置１は、仮更生材１７を付与する仮補修機能、本管更新時の取付管保護機能、地盤改良機能、及び新本管Ｐ１へのパイロット小孔Ｈｐ穿孔機能を備えたものであり、１つの装置の一度の配置で多工程の施工が実施出来るため、地下埋設本管更新時の取付管復元工事が非開削の下に、且つ短期間施工で実施出来、施工費用の低減の下に工期の短縮化も可能とする。 In addition, the restoration device 1 employed in the invention for restoring the mounting pipe includes a temporary repair function for providing the temporary rehabilitation material 17, a mounting pipe protection function when the main pipe is updated, a ground improvement function, and a pilot pilot to the new main pipe P1. Since it is equipped with a hole Hp drilling function and can perform multi-step construction with a single arrangement of one device, the restoration work of the installation pipe at the time of renewal of the underground buried main pipe is performed without digging and in a short period of time. The construction period can be shortened while reducing the construction cost.

〔復元装置１の構造（図２）〕
取付管復元装置１は、図２に示す如く、金属製の前端部１Ａと後端部１Ｂとを可撓ホース１３で接続したものであり、前端部１Ａ外周と後端部１Ｂ外周とをゴムチューブ１６で接続し、ゴムチューブ１６と可撓ホース１３との間を空気室１５としたものであって、標準サイズは、復元装置１の全体長さＬｏが１ｍ、径Ｄｏが１０cmであり、前端部１Ａはカバー１Ｃから突出パイプＰａ後端までが１５cm、後端部１Ｂは突出パイプＰｂ先端から後端面までが１５cmである。 [Structure of Restoration Device 1 (FIG. 2)]
As shown in FIG. 2, the attachment pipe restoring device 1 is formed by connecting a metal front end portion 1A and a rear end portion 1B with a flexible hose 13, and connecting the outer periphery of the front end portion 1A and the outer periphery of the rear end portion 1B with rubber. The tube 16 is connected, and the space between the rubber tube 16 and the flexible hose 13 is an air chamber 15. The standard size is that the overall length Lo of the restoring device 1 is 1 m, and the diameter Do is 10 cm. The front end 1A is 15 cm from the cover 1C to the rear end of the projecting pipe Pa, and the rear end 1B is 15 cm from the front end of the projecting pipe Pb to the rear end surface.

〔前端部１Ａ（図２、図３）〕
前端部１Ａは、中央に径Ｄｈ（標準：３２mm）の貫通孔Ｈａを、後部には該貫通孔Ｈａを延出した形態の突出パイプＰａを備え、該パイプＰａ後端内周には支持環縁Ｆ１を形成し、先端には中心にドリル案内孔Ｈｃを備えたカバー１Ｃを着脱自在に嵌着したものである。
また、図２（Ｂ）に示す如く、カバー１Ｃの外側位置で２本のグラウト材吐出用の貫通孔１９ａを配置し、該１９ａの後端にはホースニップル１４を螺着したものである。 [Front end 1A (FIGS. 2 and 3)]
The front end 1A is provided with a through hole Ha having a diameter Dh (standard: 32 mm) in the center, and a protruding pipe Pa in a form in which the through hole Ha is extended at the rear, and a support ring is provided at the inner periphery of the rear end of the pipe Pa. An edge F1 is formed, and a cover 1C having a drill guide hole Hc at the center is detachably fitted at the tip.
Further, as shown in FIG. 2B, two through holes 19a for discharging the grout material are arranged at the outer position of the cover 1C, and the hose nipple 14 is screwed to the rear end of the 19a.

また、先端のカバー１Ｃは、図３（Ａ）の如く、前端部１Ａの先端の嵌合凹部Ｏａに嵌合し、カバー１Ｃとは遊びで前端部１Ａのみと螺合する固定用ボルト２１の３本と、カバー１Ｃとのみ螺合し、前端部１Ａの遊び孔に先端の当接した脱着用のボルト２２の３本とで止着するものであり、固定用ボルト２１の３本をカバー１Ｃまで浮上らせた後、脱着用ボルト２２の３本を、先端が前端部１Ａの遊び孔に当接した状態で締着方向に回動すれば、ボルト２２の突入量をカバー１Ｃの浮上り量に転化して、カバー１Ｃの取外しを容易としたものである。 Further, as shown in FIG. 3A, the front cover 1C is fitted into the front fitting end OA of the front end 1A, and the fixing bolt 21 is screwed only with the front end 1A by play with the cover 1C. The three screws and only the cover 1C are screwed together, and are fastened with three of the detachable bolts 22 that are in contact with the play holes of the front end portion 1A, and the three fixing bolts 21 are covered. After lifting up to 1C, if the three of the detaching bolts 22 are rotated in the fastening direction with their tips in contact with the play holes of the front end portion 1A, the amount of rushing of the bolts 22 can be raised to the cover 1C. In this case, the cover 1C is easily removed.

〔後端部１Ｂ（図２、図６（Ａ））〕
後端部１Ｂ中央には貫通孔Ｈｂが、前面には貫通孔Ｈｂの延出形態の突出パイプＰｂが、また、前端部１Ａの２本の貫通孔（グラウト孔）１９ａに対応する２本の貫通孔１９ｂを穿設し、貫通孔１９ｂの前端及び後端にはニップル１４を螺着し、図６（Ａ）の如く、１本のエアー供給孔（空気経路）５１とホース止着用ニップル１４ａを配置し、後面中央にはホース受口７０を突設し、後面側部に引出しロープ用のフック２０を螺着したものである。 [Rear end 1B (FIGS. 2 and 6A)]
A through hole Hb is formed at the center of the rear end 1B, a projecting pipe Pb extending from the through hole Hb is formed on the front surface, and two through holes (grouting holes) 19a corresponding to the front end 1A. A through hole 19b is formed, and a nipple 14 is screwed to the front end and the rear end of the through hole 19b. As shown in FIG. 6A, one air supply hole (air path) 51 and a hose fastening nipple 14a. The hose receiving port 70 is projected from the center of the rear surface, and the hook 20 for the draw-out rope is screwed to the rear surface side portion.

〔フレキシブルカッター装置（図２、図４）〕
フレキシブルカッター装置６は、地上のカッター駆動機２に接続したものであり、新本管Ｐ１から取付管Ｐ側へ連通孔２４を穿孔する際のパイロット小孔Ｈｐを復元装置１内から付与するものであり、図４（Ａ）の如く、先端に口金６４Ｍを有するパワーケーブルガイド６４内に挿通されたパワーケーブル６３と、コネクター６１と、ドリルカッター６０とから成るものであり、パワーケーブル６３は、細鋼線の撚合ストランドで先端６３ｔのみ断面方形に賦型加工したものである。 [Flexible cutter device (FIGS. 2 and 4)]
The flexible cutter device 6 is connected to the ground cutter drive machine 2, and provides the pilot small hole Hp from the inside of the restoring device 1 when the communication hole 24 is drilled from the new main pipe P1 to the mounting pipe P side. 4A, the power cable 63 is inserted into a power cable guide 64 having a base 64M at the tip, a connector 61, and a drill cutter 60. Only the tip 63t is formed into a square cross section with a twisted strand of fine steel wire.

コネクター６１は、図４（Ｂ）に示す如く、円柱形態で中間には、前端部１Ａの突出パイプＰａ後端内周の支持環縁Ｆ１に係止するために突出した係止フランジＦ６１を備え、後半の円柱部が、断面方形のパワーケーブル嵌入孔Ｈ６３、及び孔Ｈ６３に達するねじ孔Ｓｈを備え、且つ、支持環縁Ｆ１内に挿通可能な径ｄ１を備えたパワーケーブル止着部Ｃｂであり、前半の円柱部が、径ｄ２で、ドリルカッター６０嵌入孔Ｈｄを備えたドリルカッター止着部Ｃａであり、ドリルカッター止着部Ｃａには外周に油だめ溝Ｇ６２を備えたスリーブ６２を嵌合し、一体化したものである。 As shown in FIG. 4 (B), the connector 61 includes a locking flange F61 that protrudes in order to lock the support ring edge F1 on the inner periphery of the rear end of the protruding pipe Pa of the front end 1A. In the power cable fastening portion Cb, the latter cylindrical portion has a square-shaped power cable insertion hole H63 and a screw hole Sh reaching the hole H63, and a diameter d1 that can be inserted into the support ring edge F1. Yes, the first half of the cylindrical portion is a drill cutter fastening portion Ca having a diameter d2 and a drill cutter 60 insertion hole Hd, and the drill cutter fastening portion Ca has a sleeve 62 having a sump groove G62 on the outer periphery. It is fitted and integrated.

〔取付管復元装置１の組立て〕
図２に示す如く、厚手の天然ゴムの可撓ホース１３（標準長：７８cm）を、先端部１Ａの後方突出パイプＰａと後端部１Ｂの前方突出パイプＰｂ上に差し渡し嵌合し、バンド１１で締着して先端部１Ａと後端部１Ｂとを連結する。
次いで、先端部１Ａ後面の２個のニップル１４と後端部１Ｂ前方の２個のニップル１４とを注入ホース（ポリウレタンホース）８´で連結し、それぞれホースをニップルにバンド１２で締着する。 [Assembly of mounting pipe restoration device 1]
As shown in FIG. 2, a thick natural rubber flexible hose 13 (standard length: 78 cm) is inserted and fitted onto the rearward projecting pipe Pa of the front end 1A and the front projecting pipe Pb of the rear end 1B. The front end portion 1A and the rear end portion 1B are connected by fastening.
Next, the two nipples 14 on the rear surface of the front end portion 1A and the two nipples 14 in front of the rear end portion 1B are connected by an injection hose (polyurethane hose) 8 ', and each hose is fastened to the nipple with a band 12.

次いで、伸縮性に富む天然ゴムのゴムチューブ１６（標準長：９２cm）を、図２の如く、前端部１Ａ外周と後端部１Ｂ外周とに差し渡し状に嵌めて、前端部１Ａ上も後端部１Ｂ上も２本のバンド１０で強固に締着する。
次いで、図７（Ａ）、（Ｂ）の如く、５〜６ｍ長のパワーケーブルガイドホース７を後端部１Ｂの後部の受口７０に嵌入してテープ７０Ｔで止着し、パワーケーブル６３を回動自在に保護したパワーケーブルガイド６４を、図７（Ｂ）の如く、後方からパワーケーブルガイドホース７内に挿入して前端部１Ａの貫通孔Ｈａから前方へ突出し、図４（Ａ）に示す如く、パワーケーブル６３の断面方形に賦型した先端６３ｔをコネクター６１の断面方形のパワーケーブル嵌入孔Ｈ６３に挿入し、ねじボルトＳ６１で締着する。 Next, a rubber tube 16 (standard length: 92 cm) rich in stretchability is fitted in a stretched manner between the outer periphery of the front end 1A and the outer periphery of the rear end 1B as shown in FIG. The part 1B is also firmly fastened by the two bands 10.
Next, as shown in FIGS. 7A and 7B, the power cable guide hose 7 having a length of 5 to 6 m is fitted into the receiving port 70 at the rear part of the rear end 1B and fixed with the tape 70T. As shown in FIG. 7B, the power cable guide 64 that is rotatably protected is inserted into the power cable guide hose 7 from the rear and protrudes forward from the through hole Ha of the front end 1A, as shown in FIG. As shown, a tip 63t shaped into a square cross section of the power cable 63 is inserted into a power cable insertion hole H63 having a square cross section of the connector 61 and fastened with a screw bolt S61.

また、コネクター６１の先端からは、ドリルカッター６０の基端部をドリル嵌入孔Ｈｄに挿入し、ねじボルトＳ６０で締着する。
次いで、パワーケーブルガイド６４を引戻して、ドリルカッター６０を装着したコネクター６１を前端部１Ａの貫通孔Ｈａ内に引入れ、コネクター６１の係止フランジＦ６１が突出パイプＰａ後端の支持環縁Ｆ１に当接した状態で、前端部１Ａ先端にカバー１Ｃを被せてボルト２１及び２２でカバー１Ｃを止着する。 Further, from the tip of the connector 61, the base end portion of the drill cutter 60 is inserted into the drill insertion hole Hd and fastened with a screw bolt S60.
Next, the power cable guide 64 is pulled back, and the connector 61 fitted with the drill cutter 60 is drawn into the through hole Ha of the front end 1A, and the locking flange F61 of the connector 61 is moved to the support ring F1 at the rear end of the protruding pipe Pa. In the state of contact, the cover 1C is put on the tip of the front end 1A, and the cover 1C is fastened with the bolts 21 and 22.

復元装置１の使用可能状態では、図２、図５に示す如く、コネクター６１の係止フランジＦ６１が突出パイプＰａ後端内周の支持環縁Ｆ１に当接し、且つ、ドリルカッター６０先端がカバー１Ｃのドリル案内孔Ｈｃに入り込んだ状態である。
また、後端部１Ｂの後面の２個のニップル１４には水ガラス系主剤用ホース８と塩化カルシウム系硬化剤用ホース８とを接続し、ニップル１４ａにはコンプレッサーからのエアーチューブを接続する。 In the usable state of the restoring device 1, as shown in FIGS. 2 and 5, the locking flange F61 of the connector 61 abuts the support ring edge F1 on the inner periphery of the rear end of the projecting pipe Pa, and the tip of the drill cutter 60 is covered. It is in a state of entering the 1C drill guide hole Hc.
A water glass main agent hose 8 and a calcium chloride hardener hose 8 are connected to the two nipples 14 on the rear surface of the rear end 1B, and an air tube from a compressor is connected to the nipple 14a.

〔施工〕
仮更生材１７として、厚さ３．０mm、長さ４０cmの硬化性樹脂含浸繊維シートを用意し、図１の如く復元装置１をフレキシブルカッター装置６、グラウトミキサー３、グラウトポンプ４、圧力流量測定装置５、コンプレッサー１８に接続し、図１（Ｂ）の如く、仮更生材１７を復元装置１の胴部、即ち、ゴムチューブ上に巻回して、破砕領域Ｄから５０mm前後に仮更生材１７先端が位置するように、パワーケーブルガイドホース７（図７（Ａ））を手で操作して人力で復元装置１を取付管Ｐ内に挿入する。
この時、作業員は本管内にあるＴＶカメラ装置により位置を確認する。 [Construction]
A curable resin-impregnated fiber sheet having a thickness of 3.0 mm and a length of 40 cm is prepared as the temporary rehabilitation material 17, and as shown in FIG. 1, the restoring device 1 is a flexible cutter device 6, a grout mixer 3, a grout pump 4, and a pressure flow measurement. As shown in FIG. 1B, the temporary rehabilitation material 17 is wound on the body of the restoration device 1, that is, a rubber tube, and the temporary rehabilitation material 17 is about 50 mm from the crushing region D. The power cable guide hose 7 (FIG. 7A) is manually operated so that the distal end is positioned, and the restoring device 1 is inserted into the attachment pipe P manually.
At this time, the worker confirms the position by the TV camera device in the main.

次いで、コンプレッサー１８より圧縮空気を空気室１５内に送り込んでゴムチューブ１６を膨張拡径させて仮更生材１７を拡開して取付管Ｐ内面に当接圧着し、含浸合成樹脂（常温硬化型樹脂）の硬化により仮更生材１７の硬化層で取付管Ｐ内周面を補強被覆する（図７（Ｂ））。
そして、図７（Ｂ）の状態を維持して、即ち、復元装置１の胴部の拡径状態を維持した状態で、従来の非開削更新工法で旧本管Ｐ０の新本管Ｐ１への更新を行う。
この時、破砕領域Ｄが復元装置１の先端にかかる様であれば上に移動し、再び拡径し固定する。 Next, compressed air is sent from the compressor 18 into the air chamber 15 to expand and expand the rubber tube 16 to expand the temporary rehabilitation material 17 and contact and pressure-bond to the inner surface of the mounting pipe P. The inner peripheral surface of the mounting pipe P is reinforced and coated with a cured layer of the temporary rehabilitation material 17 by curing the resin) (FIG. 7B).
And in the state which maintained the state of FIG. 7 (B), ie, the diameter-expanded state of the trunk | drum of the decompression | restoration apparatus 1, it replaces the old main pipe P0 with the new main pipe P1 by the conventional non-cutting update method. Update.
At this time, if the crushing region D is applied to the front end of the restoring device 1, it moves upward, expands again, and is fixed.

次いで、図７（Ｃ）の如く、復元装置１を拡径状態で保持したまま、復元装置１の一方の薬液経路１４→１９ｂ→１９ａからは、水ガラス系主剤を、他方の薬液経路１４→１９ｂ→１９ａからは塩化カルシウム系硬化剤を同時に装置１前方に吐出して混合し、装置１の前方の本管更新に伴う破砕域（グラウトゾーン）を瞬時に硬化処理する。
この場合、取付管Ｐ内は復元装置１が拡径して閉止しているため、薬液の取付管Ｐ内への流入は生じない。 Next, as shown in FIG. 7 (C), the water glass main agent is transferred from one chemical solution path 14 → 19b → 19a of the recovery device 1 while the recovery device 1 is held in an expanded state, and the other chemical solution path 14 → From 19b to 19a, the calcium chloride-based curing agent is simultaneously discharged and mixed in front of the apparatus 1, and the crushing zone (grout zone) associated with the main pipe update in front of the apparatus 1 is instantaneously cured.
In this case, since the restoring device 1 is expanded and closed in the attachment pipe P, the chemical liquid does not flow into the attachment pipe P.

次いで、復元装置１を拡径状態で取付管Ｐに固定したまま、図８（Ａ）の如く、パワーケーブル６３を押込むことによりドリルカッター６０をカバー１Ｃより突出させ、地上のカッター駆動機によってパワーケーブル６３を回転させて新本管Ｐ１の側面に取付管Ｐの中心位置のパイロット小孔Ｈｐを穿孔する。
復元装置１は、パイロット小孔Ｈｐ穿孔後、ゴムチューブ１６のエアーを抜いて縮径し、地上へ引上げる。 Next, as shown in FIG. 8 (A), with the restoring device 1 fixed to the attachment pipe P in the expanded state, the power cutter 63 is pushed to cause the drill cutter 60 to protrude from the cover 1C, and the ground cutter drive machine The power cable 63 is rotated to drill a pilot small hole Hp at the center position of the mounting pipe P on the side surface of the new main pipe P1.
After the pilot small hole Hp is drilled, the restoring device 1 pulls out the air from the rubber tube 16 to reduce the diameter and pulls it up to the ground.

次いで、図８（Ｂ）に示す如く、新本管Ｐ１側からパイロット小孔Ｈｐを目印に削孔ロボット２７に取付けたクラウンカッター２６で取付管Ｐへの連通孔２４を削孔する。
次いで、図８（Ｃ）の如く、削孔ロボット２７を用いて新本管Ｐ１内から、取付管Ｐまでのグラウトゾーンに開削した連通孔２４に、取付管Ｐと同径の硬質塩化ビニル管の補助管２８を配置する。
この場合、補助管２８の外周面に戻り防止用突起２９を配置しておくのが好ましい。 Next, as shown in FIG. 8B, the communication hole 24 to the mounting pipe P is drilled from the new main pipe P1 side by the crown cutter 26 attached to the drilling robot 27 with the pilot small hole Hp as a mark.
Next, as shown in FIG. 8 (C), a rigid polyvinyl chloride pipe having the same diameter as the mounting pipe P is formed in the communication hole 24 cut into the grout zone from the inside of the new main pipe P1 to the mounting pipe P using the drilling robot 27. The auxiliary tube 28 is arranged.
In this case, it is preferable to arrange a protrusion 29 for preventing return on the outer peripheral surface of the auxiliary pipe 28.

次いで、図８（Ｄ）に示す如く、本管Ｐ１と取付管Ｐとが一体となるように取付管更生工法で補修する。
本発明によれば、全く新規な取付管復元装置１の使用によって、仮補修としての仮更生材１７は、取付管の補強の必要な局所のみへの適用となって、仮更生材１７の材料費節約の下に仮補修工の時間も短縮出来る。 Next, as shown in FIG. 8D, the main pipe P1 and the mounting pipe P are repaired by the mounting pipe rehabilitation method so as to be integrated.
According to the present invention, by using the completely new mounting pipe restoring device 1, the temporary rehabilitation material 17 as temporary repair is applied only to the local area where the mounting pipe needs to be reinforced, and the material of the temporary rehabilitation material 17 Temporary repair work time can be shortened while saving money.

しかも、本管更新時の取付管Ｐへの破砕作用伝播は、復元装置１による仮更生材１７の支持保護作用によって抑制出来、取付管Ｐ先端の旧本管Ｐ０近傍の残存域Ｌｒのみに抑制出来、定位置に保持した拡径状態の復元装置１を介した瞬時の破砕域（残存域Ｌｒ）への地盤改良によって、破砕域でのボイド拡大も抑制出来る。
また、仮更生材１７の仮補修工もグラウト工（地盤改良工）も、パイロット小孔Ｈｐ穿孔工も、定位置に拡径保持した復元装置１を介した作業であり、従来工法の如き、その都度別々の機能を果たす機械の切換え挿入使用の煩雑さが避けられ、取付管Ｐ復元工として時間が短縮出来、工費も低減出来る。 Moreover, the propagation of the crushing action to the attachment pipe P when the main pipe is renewed can be suppressed by the support and protection action of the temporary rehabilitation material 17 by the restoration device 1, and only the residual region Lr near the old main pipe P0 at the tip of the attachment pipe P is suppressed. The void expansion in the crushing area can also be suppressed by improving the ground to the instantaneous crushing area (residual area Lr) via the restoring device 1 in the expanded state held in place.
In addition, the temporary repair work of the temporary rehabilitation material 17, the grout work (ground improvement work), and the pilot small hole Hp drilling work are operations through the restoring device 1 which is expanded in diameter at a fixed position. In each case, it is possible to avoid the trouble of switching and inserting the machines that perform different functions, and it is possible to reduce the time required for the restoration work of the mounting pipe P, and also to reduce the construction cost.

本発明に用いる装置の説明図であって、（Ａ）は全体概略図、（Ｂ）は（Ａ）のＢ部拡大図である。It is explanatory drawing of the apparatus used for this invention, Comprising: (A) is a whole schematic diagram, (B) is the B section enlarged view of (A). 本発明装置の説明図であって、（Ａ）は一部切欠断面図、（Ｂ）は先端面図、（Ｃ）は後端面図である。It is explanatory drawing of this invention apparatus, Comprising: (A) is a partially cutaway sectional view, (B) is a front end view, (C) is a rear end view. 本発明装置の前端部１Ａの説明図であって、（Ａ）は分解図、（Ｂ）はカバー１Ｃの斜視図、（Ｃ）はコネクターの（Ａ）図のＣ−Ｃ断面図である。It is explanatory drawing of the front-end part 1A of this invention apparatus, Comprising: (A) is an exploded view, (B) is a perspective view of the cover 1C, (C) is CC sectional drawing of the (A) figure of a connector. コネクター説明図であって、（Ａ）は組立て状態図、（Ｂ）は分解斜視図である。It is connector explanatory drawing, (A) is an assembly state figure, (B) is an exploded perspective view. 本発明装置前端部の組立て状態説明図である。It is assembly state explanatory drawing of this invention apparatus front end part. 本発明装置後端部の説明図であって、（Ａ）は分解斜視図、（Ｂ）は組立て状態斜視図である。It is explanatory drawing of this invention apparatus rear part, Comprising: (A) is a disassembled perspective view, (B) is an assembly state perspective view. 本発明説明図であって、（Ａ）は復元装置の全体略示図、（Ｂ）は仮補修状態を、（Ｃ）は地盤改良状態を示す図である。It is explanatory drawing of this invention, (A) is the whole schematic diagram of a decompression | restoration apparatus, (B) is a temporary repair state, (C) is a figure which shows a ground improvement state. 本発明説明図であって、（Ａ）はパイロット小孔の穿孔状態を、（Ｂ）は連通孔の形成状態を、（Ｃ）は補助管配設状態を、（Ｄ）は取付管更生状態を示す図である。It is explanatory drawing of this invention, (A) is the drilling state of a pilot small hole, (B) is the formation state of a communicating hole, (C) is an auxiliary pipe arrangement | positioning state, (D) is an attachment pipe renewal state. FIG. 従来例図であって、（Ａ）は仮補修状態を、（Ｂ）は止水パッカ配置状態を示す図である。It is a prior art figure, (A) is a figure which shows a temporary repair state, (B) is a figure which shows a water stop packer arrangement state. 従来例図であって、（Ａ）は本管更新状態を、（Ｂ）は地盤改良状態を示す図である。It is a prior art example, Comprising: (A) is a main renewal state, (B) is a figure which shows a ground improvement state. 従来例図であって、（Ａ）はパイロット小孔穿孔状態を、（Ｂ）は取付管更生状態を示す図である。It is a prior art figure, (A) is a pilot small hole drilling state, (B) is a figure which shows an attachment pipe renovation state.

Explanation of symbols

１復元装置
１Ａ前端部
１Ｂ後端部
１Ｃカバー（先端部カバー）
２カッター駆動機
３グラウトミキサー
４グラウトポンプ
５圧力流量測定装置
６フレキシブルカッター装置
７パワーケーブルガイドホース
８，８´ 注入ホース
１０，１１，１２バンド（ハイトルクバンド）
１３可撓ホース
１４，１４ａニップル（ホースニップル）
１５空気室
１６ゴムチューブ
１７仮更生材
１９ａ，１９ｂ貫通孔（グラウト孔、薬液孔）
２０フック
２１，２２ボルト
２４連通孔
２６クラウンカッター
２７削孔ロボット
２８補助管
２９戻り防止用突起
３０更生材
３０ａつば
３６宅地枡
５１エアー供給孔
６０ドリルカッター
６１コネクター
６２スリーブ
６３パワーケーブル
６３ｔケーブル先端（先端）
６４パワーケーブルガイド
６４Ｍ口金
７０ホース受口
７０Ｔテープ
Ｄ破砕領域（破砕域）
Ｆ１支持環縁
Ｆ６１係止フランジ
Ｇ６２油だめ溝
Ｈ６１コネクター孔
Ｈ６３パワーケーブル嵌入孔（パワーケーブル孔、嵌入孔）
Ｈａ，Ｈｂ貫通孔
Ｈｃドリル案内孔
Ｈｄドリルカッター嵌入孔（ドリル孔、嵌入孔）
Ｈｐパイロット小孔
Ｌｒ残存域（残存長）
Ｐ取付管
Ｐ０旧本管（本管）
Ｐ１新本管（本管）
Ｐａ，Ｐｂ突出パイプ
Ｓ６０，Ｓ６１ねじボルト
Ｓｈねじ孔 1 Restoration device 1A Front end 1B Rear end 1C Cover (front end cover)
2 Cutter drive machine 3 Grout mixer 4 Grout pump 5 Pressure flow measuring device 6 Flexible cutter device 7 Power cable guide hose 8, 8 'Injection hose 10, 11, 12 Band (high torque band)
13 Flexible hose 14, 14a Nipple (hose nipple)
15 Air chamber 16 Rubber tube 17 Temporary rehabilitation material 19a, 19b Through hole (grouting hole, chemical hole)
20 Hooks 21 and 22 Bolt 24 Communication hole 26 Crown cutter 27 Drilling robot 28 Auxiliary pipe 29 Return prevention protrusion 30 Rehabilitation material 30a Collar 36 Housing land 51 Air supply hole 60 Drill cutter 61 Connector 62 Sleeve 63 Power cable 63t Cable tip ( tip)
64 Power cable guide 64M Base 70 Hose port 70T Tape D Crushing area (Crushing area)
F1 Support ring edge F61 Locking flange G62 Oil sump groove H61 Connector hole H63 Power cable insertion hole (power cable hole, insertion hole)
Ha, Hb Through hole Hc Drill guide hole Hd Drill cutter insertion hole (drill hole, insertion hole)
Hp Pilot small hole Lr Remaining area (Remaining length)
P Mounting pipe P0 Old main pipe (main pipe)
P1 New main (main)
Pa, Pb Projection pipe S60, S61 Screw bolt Sh Screw hole

Claims

The restoration device (1) in which the temporary rehabilitation material (17) is arranged on the outer periphery of the trunk portion is inserted into the mounting pipe (P) to the vicinity of the old main pipe (P0), and the temporary restoration is performed by expanding the trunk portion of the restoration device (1). The material (17) is stuck and cured to the inner peripheral surface of the mounting pipe (P), and then the old main pipe (P0) is renewed to the new main pipe (P1) under the expanded diameter state of the body of the restoring device (1). Next, the outer periphery of the new main pipe (P1) at the tip of the mounting pipe (P) is improved by discharging the chemical solution from the restoring device (1) under the expanded diameter state of the body of the restoring device (1). A communication hole (24) between the new main pipe (P1) and the mounting pipe (P) is formed from the pipe (P1) side, and after the diameter reduction of the restoring device (1) is removed, the new main pipe (P1) and the mounting pipe ( P) is integrated with the rehabilitation material (30).

The attachment pipe restoration method according to claim 1, wherein the auxiliary pipe (28) is interposed between the new main pipe (P1) and the end of the attachment pipe (P) after the communication hole (24) is formed.

The attachment pipe restoring method according to claim 2, wherein the auxiliary pipe (28) is provided with a protrusion (29) for preventing return on the outer peripheral surface and is pushed out from the inside of the new main pipe (P1).

The attachment pipe restoration method according to claim 2 or 3, wherein the rehabilitation material (30) comprises a collar (30a) and is reversely inserted and stretched into the new main pipe (P1), the auxiliary pipe (28) and the attachment pipe (P).

After the ground improvement, the drill cutter (60) protrudes from the center of the restoration device (1) under the expanded condition of the restoration device (1), and a pilot small hole (Hp) is drilled in the new main pipe (P1). The attachment pipe restoration method according to any one of claims 1 to 4 .

The temporary rehabilitation material (17) is stretched at the tip of the mounting pipe (P) while maintaining the remaining area (Lr) from the old main pipe (P0), The mounting pipe restoring method according to any one of claims 1 to 5 .

A front end (1A) having a central through hole (Ha) and a rearward projecting pipe (Pa), and a rear end (1B) having a central through hole (Hb) and a front projecting pipe (Pb) ) Are connected by a flexible hose (13) fitted to the protruding pipe (Pa) and the protruding pipe (Pb), and the outer periphery of the front end (1A) and the outer periphery of the rear end (1B) are connected by a rubber tube (16). An air chamber (15) is formed between the flexible hose (13) and the rubber tube (16) by airtight connection, and a drill cutter (60) is provided at the tip in the central through hole (Ha, Hb). A flexible cutter device (6) equipped with a rubber tube (16) is disposed so as to be movable in and out, and a chemical solution discharge path is disposed inside the rubber tube (16) via an injection hose (8 '). (1B) The air path (51) is arranged from the rear part to the air chamber (15). With tube restoring apparatus.

The chemical discharge path connects the through hole (19a) of the front end portion (1A) and the through hole (19b) of the rear end portion (1B) with an injection hose (8 '), and the through hole ( 8. The mounting pipe restoring device according to claim 7, wherein 19b) comprises a nipple (14) for connecting the supply hose at the rear end.

The attachment pipe restoring device according to claim 7 or 8, wherein the chemical liquid discharge path (14, 19b, 8 ', 19a) has two systems.

The tip (1A) includes a cover (1C) that is detachably secured to the top by bolt fastening, and the cover (1C) includes a drill guide hole (Hc) in the center. The mounting pipe restoring device according to claim 1.

The flexible cutter device (6) is detachable from the drill cutter (60) at the tip, the connector (61) detachably secured to the base end of the drill cutter (60), and the insertion hole (H63) of the connector (61). The mounting pipe restoring device according to any one of claims 7 to 10, further comprising a flexible power cable (63) that is fitted to the housing.

The connector (61) has an oil sump groove (G62) on the outer periphery, and is slidable and rotatable between the support ring edge (F1) at the rear end of the through hole (Ha) and the cover (1C) at the front end. 12. The mounting pipe restoring device according to claim 11, which is free.