JPH01235797A - Repairing method for underground embedded pipe and excavating device used for its repairing - Google Patents
Repairing method for underground embedded pipe and excavating device used for its repairingInfo
- Publication number
- JPH01235797A JPH01235797A JP63062338A JP6233888A JPH01235797A JP H01235797 A JPH01235797 A JP H01235797A JP 63062338 A JP63062338 A JP 63062338A JP 6233888 A JP6233888 A JP 6233888A JP H01235797 A JPH01235797 A JP H01235797A
- Authority
- JP
- Japan
- Prior art keywords
- repair
- underground
- underground pipe
- excavation
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 10
- 239000012530 fluid Substances 0.000 claims abstract description 29
- 239000003566 sealing material Substances 0.000 claims abstract description 10
- 239000002345 surface coating layer Substances 0.000 claims abstract 2
- 238000009412 basement excavation Methods 0.000 claims description 45
- 230000008439 repair process Effects 0.000 claims description 37
- 238000005553 drilling Methods 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 13
- 239000000565 sealant Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 7
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 229920001893 acrylonitrile styrene Polymers 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/175—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by using materials which fill a space around the pipe before hardening
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Pipe Accessories (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、地中埋設管の一部を掘出し、その掘出しで形
成した掘出し穴から前記地中埋設管をガイドにして地中
に掘削装置を入れ、その掘削装置により前記地中埋設管
の修繕対象部分の外周に位置する修繕用空洞部を地中に
形成する地中埋設管の修繕法、並びに、その修繕法に使
用する掘削装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides an underground excavation device that excavates a part of an underground pipe and uses the underground pipe as a guide from the excavation hole formed by the excavation. A method for repairing an underground pipe, in which the drilling device is used to form a repair cavity located on the outer periphery of a portion of the underground pipe to be repaired, and a drilling device used for the repair method. .
従来、第７図に示すように、地中埋設管（１）の掘出し
穴（２）内に掘削装置（Ｇ）を設置し、地中埋設管（１
）の修繕対象部分（１ａ）に外嵌させた筒状刃体（２２
）を駆動装置（２３）で回転させながら地中に埋込み、
筒状刃体（２２）の機械的な掻取り作用で修繕用空洞部
（１４）を修繕対象部分（１ａ）の外周に形成し、その
後、修繕用空洞部（１４）内にソール材を注入して外面
被覆層を形成する等の処置を施していた［例えば特開昭
５５−３３９６６号公報参照］。Conventionally, as shown in Fig. 7, an excavator (G) is installed in the excavation hole (2) of the underground pipe (1),
) The cylindrical blade body (22
) is buried in the ground while being rotated by a drive device (23),
A repair cavity (14) is formed on the outer periphery of the repair target part (1a) by the mechanical scraping action of the cylindrical blade (22), and then sole material is injected into the repair cavity (14). For example, see Japanese Patent Laid-Open No. 55-33966).
しかし、筒状刃体（２２）の回転と押込みに大きな駆動
力を必要とするために、掘出し穴（２）内に設置する掘
削装置（Ｇ）がかなり大型になると共に、掘削装置（Ｇ
）を操作するための作業空間を掘出し穴（２）に確保し
なければならず、掘出し穴（２）がかなり大きくなるた
めに、掘削工事、掘戻し工事、掘削土砂や掘戻し土砂の
処置などに多大の経費と労力と工期を要し、−層の改善
の余地があった。However, since a large driving force is required to rotate and push the cylindrical blade (22), the drilling equipment (G) installed in the excavation hole (2) becomes quite large, and the drilling equipment (G
) must be secured in the excavation hole (2) to operate the excavation hole (2), and since the excavation hole (2) is quite large, it is necessary to perform excavation work, back-digging work, and treatment of excavated soil and back-digged soil. This required a great deal of expense, labor, and construction time, and there was room for improvement.
本発明の目的は、地中埋設管の掘出し穴を十分に小さく
できるようにして、経費や労力の節減及び工期短縮を十
分に図れるようにする点にある。An object of the present invention is to make it possible to make the excavation hole of an underground pipe sufficiently small, thereby making it possible to sufficiently reduce costs and labor and shorten the construction period.
本発明の特徴手段は、地中埋設管の掘出し穴からその地
中埋設管の修繕対象部分をガイドにして地中に入れてそ
の修繕対象部分の外周に位置する修繕用空洞部を形成す
るための掘削装置として、噴出流体により土砂を掘削す
る流体式掘削装置を使用し、掘削土砂を噴出流体の作用
で前記掘出し穴に流出させてその掘出し穴から取出すこ
とにあり、その作用効果は次の通りである。The characteristic means of the present invention is to insert the repair target part of the underground pipe into the ground from the excavation hole of the underground pipe as a guide to form a repair cavity located around the outer periphery of the repair target part. As the excavation equipment, a fluid-type excavation equipment that excavates earth and sand with a jetting fluid is used, and the excavated earth and sand is caused to flow into the digging hole and taken out from the digging hole by the action of the jetting fluid, and its effects are as follows. That's right.
つまり、噴出流体で土砂を掘削し、掘削土砂を掘出し穴
に噴出流体により流出させて掘出し穴から取出すから、
掘削装置に対する土砂の抵抗がほとんど無くて、単に地
中埋設管の修繕対象部分に対して摺動させるだけの小さ
い押込み力を流体式掘削装置に付与するだけで済む。In other words, the earth and sand are excavated with the ejected fluid, and the excavated earth and sand is flowed into the excavated hole by the ejected fluid and taken out from the excavated hole.
There is almost no earth and sand resistance against the excavation equipment, and it is sufficient to simply apply a small pushing force to the hydraulic excavation equipment to cause it to slide against the portion of the underground pipe to be repaired.
したがって、地上に設置した押込み装置や人力による押
込みで流体式掘削装置を押進めて、掘出し穴を流体式掘
削装置を入れるに必要なだけの小さなものにしたり、小
型の押込み装置を掘出し穴内に設置して掘出し穴を小さ
くすることができ、掘出し穴の掘削工事や埋戻し工事、
及び、掘削土砂と埋戻し土砂の処置に要する経費と労力
を十分に少なくできると共に、工期を十分に短縮できる
。Therefore, it is possible to push the hydraulic excavation equipment forward using a pushing device installed on the ground or by pushing manually, to make the excavation hole small enough to accommodate the hydraulic excavation device, or to install a small pushing device inside the excavation hole. The excavation hole can be made smaller, and the excavation work and backfilling work of the excavation hole can be made smaller.
Moreover, the cost and labor required for treating the excavated earth and backfill earth and sand can be sufficiently reduced, and the construction period can be sufficiently shortened.
その結果、地中埋設管の修繕対象部分の全長全周にわた
る修繕用空洞部を利用した修繕を、経費、労力、工期の
全ての面で有利に実行できる、実際面で一段と優れた地
中埋設管の修繕法が得られた。As a result, underground pipes can be repaired using a repair cavity extending all the way around the entire length of the part to be repaired, which is advantageous in terms of cost, labor, and construction time. A method for repairing pipes was obtained.
次に実施例を示す。 Next, examples will be shown.
第１図（イ）に示すように、地中埋設管（１）の−部を
修繕対象部分（１ａ）の一端側に右いて、舗装道路に穿
孔した後流体式縦孔掘削機（Ａ）で掘出して、掘出し穴
（２）を形成する。As shown in Figure 1 (a), after drilling the - part of the underground pipe (1) to one end of the part to be repaired (1a) into the paved road, the hydraulic vertical hole excavator (A) to form the excavation hole (2).
縦孔掘削機（Ａ）は、ガイド管（３）、加圧水供給用ポ
ンプ（４）に接続した噴水管（５）、加圧空気供給用コ
ンプレッサー（６）に接続した噴気管（ア）などから成
り、水と空気の噴出に伴って土砂を掘り出して、掘削土
砂を気水混相流で上昇させるように構成したものであり
、上昇した掘削土砂は吸引排出装置（Ｂ）で掘出し穴（
２）から取出す。The vertical hole excavator (A) has a guide pipe (3), a fountain pipe (5) connected to a pressurized water supply pump (4), a fumarole pipe (A) connected to a pressurized air supply compressor (6), etc. The structure is such that the earth and sand are excavated with the ejection of water and air, and the excavated earth and sand are raised by an air-water mixed phase flow.
2) Take it out.
第１図（０）に示すように、縦孔掘削機（Ａ）を回収し
て、巻取機（Ｃ）から引出した流体式掘削装置（Ｄ）を
掘出し穴（２）内で地中埋設管（１）に取付ける。As shown in Figure 1 (0), the vertical hole excavator (A) was recovered, and the fluid type excavator (D) pulled out from the winder (C) was dug out and buried underground in the excavation hole (2). Attach to pipe (1).
流体式掘削装置（［））は、第２図に示すように、帯状
体（８）の先端に屈曲自在なステンレス鋼の薄板（９）
を取付け、噴水用ノズル（１０）と噴気用ノズル（１１
）を薄板（９）に先端側に向けて取付け、それらノズル
（１０）、 （１１）にホース（１２）を接続し、巻取
機（Ｃ）のロータリージヨイントを介して加圧流体供給
装置（Ｅ）をホース（１２）に接続し、帯状体（８）を
地中埋設管（１）に巻付けた筒状に保形するためのファ
スナー（１３）を連結及び連結解除操作自在に形成して
帯状体（８）に付設したものである。As shown in Fig. 2, the fluid drilling device ([)] has a flexible stainless steel thin plate (9) at the tip of the strip (8).
Attach the fountain nozzle (10) and the jet nozzle (11).
) is attached to the thin plate (9) facing the tip side, and a hose (12) is connected to these nozzles (10) and (11), and a pressurized fluid supply device is connected via the rotary joint of the winder (C). (E) is connected to the hose (12), and a fastener (13) for retaining the shape of a cylinder wrapped around the underground pipe (1) is formed so that the belt-like body (8) can be freely connected and disconnected. This is attached to the belt-shaped body (8).
第１図（ハ）に示すように、ノズル（１０）、 （１１
）からの水と空気の噴出に伴って、修繕対象部分（Ｉａ
）の全周にわたり土砂を掘削し、掘削土砂を噴出流体の
作用で掘出し穴（２）に流出させて吸引排出装置（Ｂ）
で掘出し穴（２）から取出す。As shown in FIG. 1 (c), the nozzles (10), (11
), the area to be repaired (Ia
), and the excavated earth and sand are discharged into the excavation hole (2) by the action of jetting fluid, and the suction and discharge device (B)
Take it out from the digging hole (2).
そして、帯状体（８）とホース（１２）を、巻取機（Ｃ
）から引出してファスナー（１３）を閉じながら修繕対
象部分（１ａ）をガイドにして地中に押込み、 ゛修繕
対象部分（１ａ）の全長全周にわたる修繕用空洞部（１
４）を流体式掘削装置（Ｄ）で地中に形成する。Then, the strip (8) and the hose (12) are pulled together by a winding machine (C).
) and while closing the zipper (13), push it into the ground using the part to be repaired (1a) as a guide.
4) is formed underground using a fluid excavation device (D).
帯状体（８）とホース（１２）の押込み、ファスナー（
１３）の閉じ操作は、人為的に地上から行うか、地上又
は掘出し穴（２）内に設置した適当な押込み機で行う。Push in the strip (8) and hose (12), and tighten the fastener (
The closing operation (13) is performed manually from the ground or by a suitable pushing machine installed above ground or in the dug hole (2).
第１図（ニ）に示すように、加圧流体供給装置（Ｅ）に
代えてシール材の注入装置（Ｆ）を巻取機（Ｃ）に接続
し、帯状体（８）とホース（１２）を修繕用空洞部（１
４）から引出すと共にファスナー（１３）を開き、その
流体式掘削装置（Ｄ）の引戻し回収時に注入装置（Ｅ）
からのシール材（１５）をホース（１２）とノズル（９
）、 （１０）で修繕用空洞部（１４）内に注入する。As shown in FIG. 1(d), a sealing material injection device (F) is connected to the winder (C) instead of the pressurized fluid supply device (E), and the strip body (8) and the hose (12 ) for repair cavity (1
4) and open the zipper (13), and when the fluid excavation device (D) is pulled back and recovered, the injection device (E)
Apply sealant (15) from the hose (12) and nozzle (9) to the hose (12) and nozzle (9).
), (10) is injected into the repair cavity (14).
第１図（ホ）に示すように、修繕用空洞部（１４）の全
体にシール材（１５）を注入した後、流体式掘削装置（
Ｄ）と吸引排出装置（Ｂ）を回収し、掘出し穴（２）を
埋戻し、舗装道路の穿孔部（１６）を修繕し、シール材
（１５）の固化で修繕対象部分（１ａ）を覆う外面被覆
層を形成し、工事を完了する。As shown in FIG. 1 (e), after injecting the sealing material (15) into the entire repair cavity (14), the fluid drilling device (
Collect D) and the suction/discharge device (B), backfill the dug hole (2), repair the perforated part (16) of the paved road, and cover the area to be repaired (1a) with the solidification of the sealant (15). Form the outer coating layer and complete the construction.
シール材（１５）としては、熱可塑性、熱硬化性、常温
硬化性、湿気硬化性、二液反応性の樹脂などの有機系材
料、又は、水ガラスやセメントなどの無機系材料を使用
する。熱可塑性樹脂としては、ポリエチレン、塩化ビニ
ル樹脂、ポリプロピレン、スチレン樹脂、ＡＢＳ樹脂、
ポリビニルアルコール、アクリル樹脂、アクリロニトリ
ル−スチレン系樹脂、塩化ビニリデン樹脂、ＡＡＳ （
ＡＳＡ＞樹脂、ＡＥＳ樹脂（耐候性、耐衝撃性樹脂）、
繊維素誘導体樹脂、熱可塑性ポリウレタン、ポリビニル
ブチラーノベポリー４−メチルペンテン−１、ポリブテ
ン−１などがある。熱硬化性樹脂としては、不飽和ポリ
エステル樹脂、エポキシ樹脂、フェノール樹脂、ユリア
樹脂、メラミン樹脂、ジアリルフタレート樹脂、シリコ
ーン樹脂、ポリウレタンなどがある。As the sealing material (15), an organic material such as thermoplastic, thermosetting, room temperature curable, moisture curable, or two-component reactive resin, or an inorganic material such as water glass or cement is used. Thermoplastic resins include polyethylene, vinyl chloride resin, polypropylene, styrene resin, ABS resin,
Polyvinyl alcohol, acrylic resin, acrylonitrile-styrene resin, vinylidene chloride resin, AAS (
ASA>Resin, AES resin (weather resistant, impact resistant resin),
Examples include cellulose derivative resin, thermoplastic polyurethane, polyvinyl butyranobyl poly 4-methylpentene-1, polybutene-1, and the like. Examples of thermosetting resins include unsaturated polyester resins, epoxy resins, phenol resins, urea resins, melamine resins, diallyl phthalate resins, silicone resins, and polyurethanes.
次に別実施例を示す。 Next, another example will be shown.
地中埋設管（１）の掘出し穴（２）を形成するに、回転
ドリル式などの公知の縦孔掘削機を利用したり、人為掘
削する等、適当な手段を利用できる。また、修繕対象部
分（１ａ）の両側に掘出し穴（２）を形成してもよい。To form the excavation hole (2) of the underground pipe (1), any suitable means can be used, such as using a known vertical hole excavator such as a rotary drill type, or manual excavation. Further, dug holes (2) may be formed on both sides of the repair target portion (1a).
流体式掘削装置（Ｄ）の構成は適当に変更でき、例えば
下記（イ）ないしくへ）項のものを利用できる。The configuration of the fluid excavation device (D) can be changed as appropriate, and for example, the configurations listed in (a) to (v) below can be used.
（イ） 帯状体（８）を布、ネット、フィルム、多孔状
フィルム、その他適当な材料、例えばホースやコルゲー
ト管を周方向１箇所で切って開けられるようにしたもの
等で形成する。(a) The strip (8) is made of cloth, net, film, porous film, or other suitable material, such as a hose or corrugated pipe that can be cut at one point in the circumferential direction.
（ｒｌ） 先端の薄板（９）やノズル（１０）、 （
１１）を省略して、帯状体（８）の先端側にホース（１
２）の先端側を固定する。(rl) Thin plate at the tip (9), nozzle (10), (
11) is omitted, and a hose (1) is attached to the tip side of the strip (8).
2) Fix the tip side.
（ハ） ホース（１２）を帯状体（８）の内側、外側又
は厚み内に配置する。(c) Place the hose (12) inside, outside, or within the thickness of the strip (8).
（ニ） ファスナー（１３）に代えて、フック式、ボタ
ン式などの適当な連結手段を利用する。それらを連結具
（１３）と総称する。(d) Instead of the zipper (13), use an appropriate connecting means such as a hook type or button type. These are collectively referred to as the connector (13).
（ホ） 帯状体（８）に代えて、第３図に示すように、
半割筒状体（１７）を第１連結部（１８）で筒状に体形
すると共に、隣り合う半割筒状体（１７）どうしを第２
連結部（１９）で接続して用い、半割筒状体（１７）を
継ぎ足すようにしてもよい。(e) Instead of the strip (8), as shown in Figure 3,
The half cylindrical body (17) is formed into a cylindrical shape by the first connecting part (18), and the adjacent half cylindrical bodies (17) are connected to each other in a second shape.
They may be used by connecting at the connecting portion (19), and the half-split cylindrical body (17) may be added.
（へ） 流体噴出のためのノズル（１０）、 （１１）
やホース（１２）の設置数は適当に変更でき、また、噴
出流体は水だけ水と空気の混合物など適当に選定できる
。また、ノズル（１０）、 （１１）を噴出流体が修繕
対象部分（１ａ）周りでの旋回流になるように向けても
よい。(f) Nozzle for fluid ejection (10), (11)
The number of hoses (12) installed can be changed appropriately, and the ejected fluid can be appropriately selected, such as water or a mixture of water and air. Further, the nozzles (10) and (11) may be directed so that the ejected fluid forms a swirling flow around the repair target portion (1a).
掘出し穴（２）から掘削土砂を取出すに、公知の適当な
装置を利用でき、また、人力によってもよい。To remove the excavated earth and sand from the excavated hole (2), any known suitable device can be used, or it may be done manually.
第４図に示すように、掘出し穴（２）を修繕対象部分（
１ａ）の中間に形成し、掘出し穴（２）から両側に向け
て流体式掘削装置（Ｄ）で修繕用空洞部（１４）を形成
してもよい。As shown in Figure 4, the excavation hole (2) is connected to the area to be repaired (
1a), and a repair cavity (14) may be formed from the excavation hole (2) toward both sides using a fluid drilling device (D).
シール材（１５）を修繕用空洞部（１４）に注入するに
、第５図に示すように、流体式掘削装置（Ｄ）を回収し
た後で注入用ホース（２０）を修繕用空洞部（１４）に
差込み、シール材注入用ホース（２０）を引戻しながら
注入したり、又は、修繕用空洞部（１４）の両端側から
差込んだシール材注入用ホース（２０）で注入したり、
その他各種手役を利用できる。To inject the sealing material (15) into the repair cavity (14), as shown in FIG. 14) and inject while pulling back the sealing material injection hose (20), or injecting with the sealing material injection hose (20) inserted from both ends of the repair cavity (14),
Various other types of hands can be used.
シール材注入に代えて、第６図に示すように、修繕対象
部分（１ａ）を新管に換えてもよい。つまり、第６図（
イ）に示すように、修繕用空洞部（１４）を形成して流
体式掘削装置（Ｄ）を回収した後、修繕対象部分（１ａ
）の両側で地中埋設管（１）を切断し、一方の掘出し穴
（２）において修繕対象部分（ｌａ）を少しづつ切取り
ながら引抜き、他方の掘出し穴（２）において新管（２
１）を継足しながら挿入し、第６図（ロ）に示すように
、挿入した新管（２１）の両端を地中埋設管（１）に接
続する。Instead of injecting the sealant, the part to be repaired (1a) may be replaced with a new pipe, as shown in FIG. In other words, Fig. 6 (
As shown in b), after forming the repair cavity (14) and recovering the fluid drilling device (D), the repair target part (1a
), cut the underground pipe (1) on both sides of the pipe (1), cut out the part to be repaired (la) little by little in one excavation hole (2) and pull it out, and then remove the new pipe (2) in the other excavation hole (2).
1), and connect both ends of the inserted new pipe (21) to the underground pipe (1) as shown in Figure 6 (b).
また、修繕対象部分（１ａ）に被覆用チューブを外嵌さ
せて、チューブで修繕を施してもよく、その場合、温風
、温水、ヒータなどによる加熱でチューブを熱収縮させ
て修繕対象部分（１ａ）に密着させてもよい。Alternatively, a covering tube may be fitted over the area to be repaired (1a) and repairs may be performed using the tube. In that case, the tube may be heat-shrinked by heating with hot air, hot water, a heater, etc. It may be brought into close contact with 1a).
地中埋設管（１）は種類、材質、構造、その他において
限定を受けるもので無く、例えば都市ガス、水道、温水
、電気ケーブル用などであってもよく、また、修繕目的
は腐食減肉部の補強、塗装や被覆材の欠陥部補修、継手
部の漏洩補修、その他いかなるものでもよい。The underground pipe (1) is not limited in type, material, structure, etc., and may be used for city gas, water, hot water, electric cables, etc., and the purpose of repair is to remove corroded and thinned parts. reinforcement, repair of defects in paint or covering materials, repair of leaks in joints, or anything else.
第１図（イ）ないしくネ）は本発明の実施例における施
工手順説明図、第２図は使用掘削装置の部５分図である
。
第３図は本発明で使用する掘削装置の別実施例の説明図
である。
第４図、第５図、及び、第６図（イ）、（０）は本発明
の各別の実施例の説明図である。
第７図は従来例の説明図である。
（１）・・・・・・地中埋設管、（１ａ）・・・・・・
修繕対象部分、（２）・・・・・・掘出し穴、（８）・
・・・・・帯状体、（１０）、 （１１）・・・・・・
ノズル、（１２）・・・・・・ポース、（１３）・・・
・・・連結具、（１４）・・・用修繕用空洞部、（１５
）・・・・・・シール材、（２１）・・・・・・新管、
（Ｄ）・・印・流体式掘削装置。FIG. 1 (A) to (D) are explanatory diagrams of the construction procedure in an embodiment of the present invention, and FIG. 2 is a 5-part diagram of the excavation equipment used. FIG. 3 is an explanatory diagram of another embodiment of the drilling equipment used in the present invention. FIG. 4, FIG. 5, and FIGS. 6(A) and (0) are explanatory diagrams of different embodiments of the present invention. FIG. 7 is an explanatory diagram of a conventional example. (1)・・・Underground pipe, (1a)・・・・・・
Area to be repaired, (2)... Excavation hole, (8).
...band-shaped body, (10), (11)...
Nozzle, (12)...Pose, (13)...
... Connector, (14) ... Repair cavity, (15
)... Sealing material, (21)... New pipe,
(D)...Seal: Fluid type drilling equipment.
Claims (1)
成した掘出し穴（２）から前記地中埋設管（１）をガイ
ドにして地中に掘削装置を入れ、その掘削装置により前
記地中埋設管（１）の修繕対象部分（１ａ）の外周に位
置する修繕用空洞部（１４）を地中に形成する地中埋設
管の修繕法であって、前記掘削装置として、噴出流体に
より土砂を掘削する流体式掘削装置（Ｄ）を使用し、掘
削土砂を噴出流体の作用で前記掘出し穴（２）に流出さ
せてその掘出し穴（２）から取出す地中埋設管の修繕法
。 ２、前記修繕用空洞部（１４）を形成した後、その修繕
用空洞部（１４）内にシール材（１５）を注入し、その
シール材（１５）で前記修繕対象部分（１ａ）を覆う外
面被覆層を形成する請求項１記載の地中埋設管の修繕法
。 ３、前記シール材（１５）の注入を、前記流体式掘削装
置（Ｄ）に備えられたホース（１２）によってその流体
式掘削装置（Ｄ）の引戻し回収時に実施する請求項２記
載の地中埋設管の修繕法。 ４、前記修繕用空洞部（１４）を形成して前記流体式掘
削装置（Ｄ）を回収した後、前記地中埋設管（１）を前
記修繕対象部分（１ａ）の両側で切断し、前記掘出し穴
（２）において前記修繕対象部分（１ａ）を少しづつ切
取りながら引抜き、前記修繕用空洞部（１４）内に新管
（２１）を前記掘出し穴（２）から継足しながら挿入し
、挿入した新管（２１）の両端を前記地中埋設管（１）
に接続する請求項１記載の地中埋設管の修繕法。 ５、地中埋設管（１）の掘出し穴（２）からその地中埋
設管（１）をガイドにして地中に入れる地中埋設管修繕
用掘削装置であって、帯状体（８）に、それを前記地中
埋設管（１）に巻付けた筒状に保形するための連結具（
１３）を連結及び連結解除操作自在に形成して付設し、
前記帯状体（８）の先端に、土砂掘削用流体を噴出する
ノズル（１０），（１１）を設け、そのノズル（１０）
，（１１）に加圧流体供給用ホース（１２）を接続して
ある地中埋設管修繕用掘削装置。[Claims] 1. A part of the underground pipe (1) is excavated, and an excavation device is inserted into the ground through the excavation hole (2) formed by the excavation, using the underground pipe (1) as a guide. A method for repairing an underground pipe, in which a repair cavity (14) located at the outer periphery of the repair target portion (1a) of the underground pipe (1) is formed underground using the excavator. As the excavation device, a fluid-type excavation device (D) that excavates earth and sand with a jetting fluid is used, and the excavated earth and sand are caused to flow into the digging hole (2) by the action of the jetting fluid and taken out from the digging hole (2). Repair method for underground pipes. 2. After forming the repair cavity (14), inject a sealant (15) into the repair cavity (14) and cover the repair target part (1a) with the sealant (15). The method for repairing underground pipes according to claim 1, further comprising forming an outer surface coating layer. 3. The underground method according to claim 2, wherein the sealing material (15) is injected by a hose (12) provided on the fluid drilling device (D) when the fluid drilling device (D) is pulled back and recovered. How to repair buried pipes. 4. After forming the repair cavity (14) and recovering the fluid excavation device (D), cut the underground pipe (1) on both sides of the repair target part (1a), and Cut out the repair target part (1a) little by little in the dug hole (2) and pull it out, and insert the new pipe (21) into the repair cavity (14) while adding it from the dug hole (2). Connect both ends of the new pipe (21) to the underground pipe (1).
The method for repairing an underground pipe according to claim 1, wherein the underground pipe is connected to a pipe. 5. An underground pipe repair excavation device that inserts the underground pipe (1) into the ground from the excavation hole (2) using the underground pipe (1) as a guide, which , a coupling tool for keeping it in a cylindrical shape wrapped around the underground pipe (1) (
13) is formed and attached so that it can be freely connected and uncoupled,
Nozzles (10) and (11) for spouting fluid for earth and sand excavation are provided at the tip of the band-shaped body (8), and the nozzle (10)
, (11) is connected to a hose (12) for supplying pressurized fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63062338A JPH01235797A (en) | 1988-03-15 | 1988-03-15 | Repairing method for underground embedded pipe and excavating device used for its repairing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63062338A JPH01235797A (en) | 1988-03-15 | 1988-03-15 | Repairing method for underground embedded pipe and excavating device used for its repairing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01235797A true JPH01235797A (en) | 1989-09-20 |
Family
ID=13197241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63062338A Pending JPH01235797A (en) | 1988-03-15 | 1988-03-15 | Repairing method for underground embedded pipe and excavating device used for its repairing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01235797A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2865261A1 (en) * | 2004-01-15 | 2005-07-22 | Plumettaz | Underground pipe external sleeving apparatus and procedure comprises nozzle fixed to end of sleeve to deliver jets of water under pressure round end of buried pipe |
-
1988
- 1988-03-15 JP JP63062338A patent/JPH01235797A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2865261A1 (en) * | 2004-01-15 | 2005-07-22 | Plumettaz | Underground pipe external sleeving apparatus and procedure comprises nozzle fixed to end of sleeve to deliver jets of water under pressure round end of buried pipe |
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