JPH039972B2 - - Google Patents
Info
- Publication number
- JPH039972B2 JPH039972B2 JP59190357A JP19035784A JPH039972B2 JP H039972 B2 JPH039972 B2 JP H039972B2 JP 59190357 A JP59190357 A JP 59190357A JP 19035784 A JP19035784 A JP 19035784A JP H039972 B2 JPH039972 B2 JP H039972B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- casing
- casing pipe
- branch
- main pipe
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 5
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 12
- 230000002452 interceptive effect Effects 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Sewage (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は下水路等の本管に枝管を連結、連通さ
せる枝管敷設方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a branch pipe laying method for connecting and communicating a branch pipe to a main pipe such as a sewer.
（従来例の構成とその問題点）
下水管等の地下に埋設する本管は、地盤（道
路）を開削することなくシールド工法によつて構
築されているが、各家庭からの小径の下水管や道
路の雨水排水用の会所桝を本管に接続するための
枝管は、多くの場合開削方法によつて行われてい
る。このため、交通の障害となるばかりでなく工
事が長時間かゝり、又、広い施工面積が必要であ
る等の問題点がある。(Conventional configuration and its problems) Main pipes buried underground, such as sewer pipes, are constructed using the shield construction method without excavating the ground (roads), but small-diameter sewer pipes from each home In many cases, branch pipes for connecting rainwater drains from buildings and roads to main pipes are constructed using the cut-and-cut method. For this reason, there are problems such as not only causing an obstruction to traffic, but also requiring a long construction period and a large construction area.
従つて、交通に支障をきたすことなく狭い施工
面積で短期間に枝管を敷設できる工法が望まれて
おり、このような工法として近年、特開昭−
5620246号公報に開示されているように、地上か
ら本管まで穿孔しながらケーシングチユーブを接
続し、このケーシングチユーブ内に枝管を挿入し
てその下端を連結、連通させるという方法が開発
されたが、この工法では、ケーシングチユーブを
地盤中に残置させるか或いは引上げて徹去するの
で、残置すれば工費が高くついて不経済であり、
徹去すれば枝管の周囲に空胴が生じて路面が沈下
するという問題点があつた。 Therefore, there is a need for a construction method that allows branch pipes to be laid in a short period of time in a small construction area without interfering with traffic.
As disclosed in Publication No. 5620246, a method was developed in which a casing tube is connected while drilling from the ground to the main pipe, and a branch pipe is inserted into this casing tube to connect and communicate the lower ends. In this construction method, the casing tube is left in the ground or pulled up and removed, so if it is left, the construction cost will be high and it is uneconomical.
If removed, a cavity would be created around the branch pipes, causing the road surface to sink.
（発明の目的）
本発明は上記のような問題点をなくするもので
交通の支障となることなく狭い施工面積で短期間
に施工でき、且つケーシングパイプを徹去しても
地沈下の生じない安全な下水等の枝管敷設方法を
提供するものである。(Objective of the invention) The present invention eliminates the above-mentioned problems, and can be constructed in a narrow construction area in a short period of time without causing a hindrance to traffic, and does not cause ground subsidence even when the casing pipe is removed. This provides a safe method for laying branch pipes for sewage, etc.
（発明の構成）
上記目的を達成するために本発明の枝管敷設方
法は地下に配設された下水等の本管と地上の会所
桝等とを接続する枝管の敷設方法において、地上
から適宜手段によりケーシングパイプを本管まで
埋込んで該ケーシングパイプの下端を本管の外周
上面に碇着させ、次いで該ケーシングパイプ内に
地上から適宜の穿孔具を挿入して本管外周から内
部に貫通する小径孔を穿設し、しかるのち、この
小径孔と略等しい外径の枝管を前記ケーシングパ
イプ内に挿入して枝管の下端を小径孔に挿入、固
着し、ケーシングパイプと枝管外周面との隙間に
セメントベントナイト等の詐化性充填物を充填し
たのち又は充填しながらケーシングパイプを徹去
するもので、枝管を短期間で正確且つ安価に敷設
可能となり、敷設後における地盤沈下の発生をな
くしたものである。(Structure of the Invention) In order to achieve the above object, the method for laying a branch pipe of the present invention is a method for laying a branch pipe that connects a main pipe of sewage, etc. installed underground and a meeting room, etc. above the ground. The casing pipe is buried up to the main pipe by an appropriate means, the lower end of the casing pipe is anchored to the upper surface of the outer periphery of the main pipe, and then a suitable drilling tool is inserted from the ground into the casing pipe to penetrate inside the main pipe from the outer periphery. A small diameter hole is drilled through the hole, and then a branch pipe having an outer diameter approximately equal to that of the small diameter hole is inserted into the casing pipe, and the lower end of the branch pipe is inserted into the small diameter hole and fixed. The casing pipe is removed after or while filling the gap with the outer circumferential surface with a deceptive filler such as cement bentonite, making it possible to lay branch pipes in a short period of time, accurately and at low cost, and to improve the ground quality after laying. This eliminates the occurrence of subsidence.
（実施例の説明）
本発明の実施例を図面について説明すると、１
は地盤、２は地盤中に埋設した下水本管、３は路
面で、まず、この路面３の舗装を徹去したのち、
適宜深さと適宜面積を有する凹所４を掘削する。
次に、この凹所４から本管２に向つてボーリング
機により地盤１を掘削しながらケーシングパイプ
５を埋込む。なお、このケーシングパイプ５の埋
込みは、ケーシングパイプ５の中空内部にオーガ
ーを挿通して該オーガの先端をケーシングパイプ
５の開口端に臨ませた状態で穿孔しながらケーシ
ングパイプ５を圧入、埋設してもよい。(Description of Embodiments) Embodiments of the present invention will be explained with reference to the drawings.
is the ground, 2 is the sewage main buried in the ground, and 3 is the road surface. First, after removing the pavement from this road surface 3,
A recess 4 having an appropriate depth and area is excavated.
Next, the casing pipe 5 is buried while excavating the ground 1 from this recess 4 toward the main pipe 2 using a boring machine. In order to embed the casing pipe 5, an auger is inserted into the hollow interior of the casing pipe 5, and the casing pipe 5 is press-fitted and buried while drilling the hole with the tip of the auger facing the open end of the casing pipe 5. It's okay.
このケーシングパイプ５の先端には第２図に示
すように、環状の切削クラウン６が一体に装着さ
れてあり、該切削クラウン６が本管２の外周上面
に到達すれば、ケーシングパイプ５を回動させて
切削クラウン６により本管２の外周上面のコンク
リートを削りながら該切削クラウン６の先端部を
喰い込ませ、パイプ５内に地下水や土砂等が浸入
しないようにする。 As shown in FIG. 2, an annular cutting crown 6 is integrally attached to the tip of the casing pipe 5, and when the cutting crown 6 reaches the upper surface of the outer circumference of the main pipe 2, the casing pipe 5 is rotated. While cutting the concrete on the upper surface of the outer periphery of the main pipe 2 by moving the cutting crown 6, the tip of the cutting crown 6 bites into the pipe 5 to prevent underground water, earth and sand from entering into the pipe 5.
こうして、ケーシングパイプ５により地盤の崩
壊を防止すると共に該ケーシングパイプ５の下端
を本管２の外周上面に水密的に密接、碇着させた
のち、次に、第３図に示すように、下端に円形ビ
ツト９を回転自在に装着したコアチユーブ８を、
このコアチユーブ８の外周面に突設したガイド７
をケーシングパイプ５の内周面に摺接させながら
ケーシングパイプ５内に挿入して円形ビツト９の
下端をケーシングパイプ５で囲まれた本管２の外
周上面に当接させ、コアーチユーブ８に挿通、支
承させたボーリングロツド１０を路面３上のボー
リング機（図示せず）により回転させて該ボーリ
ングロツド１０の下端に接続した前記円形ビツト
９により本管２の内周面に貫通する小径孔１１を
穿設する。 In this way, the casing pipe 5 prevents the ground from collapsing, and the lower end of the casing pipe 5 is anchored to the upper surface of the outer periphery of the main pipe 2 in a watertight manner. Next, as shown in FIG. A core tube 8 with a circular bit 9 rotatably attached to the core tube 8,
A guide 7 protruding from the outer peripheral surface of this core tube 8
is inserted into the casing pipe 5 while slidingly contacting the inner peripheral surface of the casing pipe 5, the lower end of the circular bit 9 is brought into contact with the outer peripheral upper surface of the main pipe 2 surrounded by the casing pipe 5, and inserted into the core tube 8, The supported boring rod 10 is rotated by a boring machine (not shown) on the road surface 3, and a small diameter hole is formed through the inner peripheral surface of the main pipe 2 by the circular bit 9 connected to the lower end of the boring rod 10. 11 is drilled.
小径孔１１の穿設後、コアーチユーブ８を引上
げ次に塩化ビニル製パイプ等よりなる枝管１２を
第４図に示すようにケーシングパイプ５内に挿入
する。 After drilling the small diameter hole 11, the core tube 8 is pulled up and a branch pipe 12 made of a vinyl chloride pipe or the like is inserted into the casing pipe 5 as shown in FIG.
この枝管１２の下端には、第５図に示すよう
に、小径孔１１の径に略等しい外径を有し且つ長
さが本管２の肉厚に略々等しい小径部分１３ａ
と、小径孔１３ａの外径よりも大径で且つケーシ
ングパイプ５の内径よりも小径の大径部分１３ｂ
とが一体となつたソケツト１３が取付けられてあ
り、このソケツト１３の小径部分１３ａを小径孔
１１に挿嵌すると共に枝管１２の下端に被嵌、固
着した大径部分１３ｂの下端を小径孔１１の上端
周縁に密着、受止させた状態にする。しかるの
ち、小径部分１３ａの下端を本管２の内周面側か
ら接着剤によつて小径孔１１の下端周縁に水密的
に接合する。なお、枝管１２の長さは路面上に突
出しない長さに形成してある。 At the lower end of this branch pipe 12, as shown in FIG.
and a large diameter portion 13b that is larger in diameter than the outer diameter of the small diameter hole 13a and smaller in diameter than the inner diameter of the casing pipe 5.
The small diameter portion 13a of this socket 13 is inserted into the small diameter hole 11, and the lower end of the large diameter portion 13b, which is fitted and fixed to the lower end of the branch pipe 12, is inserted into the small diameter hole. 11 so that it is in close contact with and received by the upper end periphery. Thereafter, the lower end of the small diameter portion 13a is watertightly joined to the lower end periphery of the small diameter hole 11 from the inner peripheral surface side of the main pipe 2 with an adhesive. Note that the length of the branch pipe 12 is set so that it does not protrude above the road surface.
次に、第１，６図に示すように、枝管１２の上
端開口部に水密性を有する蓋１４を取付けると共
に、本管２の内周面に小径孔１１に横架するよう
にして棒体１５を掛け渡し、蓋１４と該棒体１５
に挿通した螺子付フツク１６，１７間にチエーン
等の索条１８を連結してフツク１６，１７に螺合
したナツト１９，２０を螺締することにより枝管
１２を本管２に強固に固定しておく。 Next, as shown in FIGS. 1 and 6, a watertight lid 14 is attached to the upper end opening of the branch pipe 12, and a rod is placed horizontally in the small diameter hole 11 on the inner peripheral surface of the main pipe 2. The body 15 is hung over the lid 14 and the rod 15.
The branch pipe 12 is firmly fixed to the main pipe 2 by connecting a cable 18 such as a chain between the threaded hooks 16 and 17 inserted through the pipe, and by screwing nuts 19 and 20 screwed into the hooks 16 and 17. I'll keep it.
しかるのち、ケーシングパイプ５の内周面と枝
管１２の外周面間の空間にセメントベントナイ
ト、モルタル等の遅硬性充填物２１を充填したの
ち、或いは充填しながら、ケーシングパイプ５を
引き上げて徹去する。この際、枝管１２には上方
に引上げられる力が作用するが、前述した索条１
８とフツク１６，１７及び棒体１５によりこれを
阻止するものである。 After that, after or while filling the space between the inner circumferential surface of the casing pipe 5 and the outer circumferential surface of the branch pipe 12 with a slow-hardening filler 21 such as cement bentonite or mortar, the casing pipe 5 is pulled up and removed. do. At this time, an upward pulling force acts on the branch pipe 12, but the above-mentioned cable 1
8, hooks 16, 17, and rod 15 to prevent this.
充填物２１が硬化すると蓋１４や索条１８等を
徹去し、第７図に示すように会所桝２２と枝管１
２との間を開削し、両者間にパイプ２３を接続し
て枝管を会所桝２２から本管２まで連結、連通さ
せる。 Once the filling 21 has hardened, the lid 14, cables 18, etc. are removed, and the chamber 22 and branch pipe 1 are removed as shown in FIG.
2, and a pipe 23 is connected between the two to connect and communicate the branch pipe from the chamber 22 to the main pipe 2.
この場合、会所桝２２と本管２との水平距離が
長いと開削部分が長くなるので、ケーシングパイ
プ５の埋込みに際して、前述した実施例で示して
いるような垂直方向の配設ではなく、ケーシング
パイプ５を会所桝２２から本管２に向かつて傾斜
させて埋設してもよい。 In this case, if the horizontal distance between the chamber 22 and the main pipe 2 is long, the cut-out portion will be long, so when embedding the casing pipe 5, the casing pipe 5 is not placed in the vertical direction as shown in the above-mentioned embodiment. The pipe 5 may be buried so as to be inclined from the chamber 22 toward the main pipe 2.
なお、前記実施例においては、索条１８を介し
て枝管１２を本管２側に強固に固定させたが、枝
管１２の下端と本管２との接合が強力であれば、
このような手段を必ずしも必要としない。 In the above embodiment, the branch pipe 12 was firmly fixed to the main pipe 2 side via the cable 18, but if the lower end of the branch pipe 12 and the main pipe 2 are strongly connected,
Such means are not necessarily required.
（発明の効果）
以上のように本発明によれば、地下に埋設され
た本管に対して地上からケーシングパイプを埋込
んで、このパイプ内を利用して枝管を本管に連結
連通させるので、路面の僅かな面積を掘削するだ
けで交通の支障となることなく施工できると共に
工事の短縮を図ることができ、さらに、枝管の配
設後、ケーシングパイプと枝管外周面との隙間に
セメントベントナイト等の硬化性充填物を充填し
たのち又は充填しながらケーシングパイプを徹去
するので、ケーシングパイプを徹去しても地盤が
崩壊する虞れがなく、従つて、路面の沈下をなく
することができるものである。(Effects of the Invention) As described above, according to the present invention, a casing pipe is buried from above ground into a main pipe buried underground, and a branch pipe is connected and communicated with the main pipe using the inside of this pipe. Therefore, construction can be carried out without interfering with traffic by simply excavating a small area of the road surface, and the construction time can be shortened.Furthermore, after the branch pipe is installed, the gap between the casing pipe and the outer circumferential surface of the branch pipe can be reduced. Since the casing pipe is removed after or while filling with a hardening filler such as cement bentonite, there is no risk of the ground collapsing even if the casing pipe is removed, and therefore, the subsidence of the road surface is eliminated. It is something that can be done.
図面は本発明の実施例を示すもので、第１図は
枝管敷設中の全体構造を示す簡略断面図、第２図
乃至第６図は施工工程を説明するための断面図、
第７図は開削施工を示す簡略側面図である。
１……地盤、２……本管、５……ケーシングパ
イプ、９……円形ビツト、１１……小径孔、１２
……枝管、２１……充填物。
The drawings show an embodiment of the present invention, and FIG. 1 is a simplified sectional view showing the overall structure during branch pipe installation, and FIGS. 2 to 6 are sectional views for explaining the construction process.
FIG. 7 is a simplified side view showing cut-and-cover construction. 1... Ground, 2... Main pipe, 5... Casing pipe, 9... Circular bit, 11... Small diameter hole, 12
... Branch pipe, 21 ... Filling.
Claims (1)
桝等とを接続する枝管の敷設方法において、地上
から適宜手段によりケーシングパイプを本管まで
埋込んで該ケーシングパイプの下端を本管の外周
上面に碇着させ、次いで該ケーシングパイプ内に
地上から適宜の穿孔具を挿入して本管外周から内
部に貫通する小径孔を穿設し、しかるのち、この
小径孔と略等しい外径の枝管を前記ケーシングパ
イプ内に挿入して枝管の下端を小径孔に挿入、固
着し、ケーシングパイプと枝管外周面との隙間に
セメントベントナイト等の硬化性充填物を充填し
たのち又は充填しながらケーシングパイプを徹去
することを特徴とする下水等の枝管敷設方法。1. In the method of laying branch pipes that connect the main pipe of sewage, etc. installed underground and the above-ground meeting hall, etc., a casing pipe is buried from above ground up to the main pipe by appropriate means, and the lower end of the casing pipe is connected to the main pipe. It is anchored on the upper surface of the outer circumference of the pipe, and then a suitable drilling tool is inserted from above ground into the casing pipe to drill a small diameter hole penetrating from the outer circumference of the main pipe to the inside. After inserting a branch pipe of the same diameter into the casing pipe, inserting the lower end of the branch pipe into the small diameter hole and fixing it, and filling the gap between the casing pipe and the outer peripheral surface of the branch pipe with a hardening filler such as cement bentonite, or A method for laying branch pipes for sewage, etc., characterized by clearing the casing pipe while filling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59190357A JPS6168943A (en) | 1984-09-11 | 1984-09-11 | Laying of branch pipe of sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59190357A JPS6168943A (en) | 1984-09-11 | 1984-09-11 | Laying of branch pipe of sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6168943A JPS6168943A (en) | 1986-04-09 |
| JPH039972B2 true JPH039972B2 (en) | 1991-02-12 |
Family
ID=16256842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59190357A Granted JPS6168943A (en) | 1984-09-11 | 1984-09-11 | Laying of branch pipe of sewage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6168943A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05118081A (en) * | 1991-06-06 | 1993-05-14 | Takeshi Mihara | Soil pipe laying method and mounting socket used for method thereof |
| JP2018105030A (en) * | 2016-12-27 | 2018-07-05 | 鹿島建設株式会社 | Ground excavation method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4884124A (en) * | 1986-08-19 | 1989-11-28 | Mitsubishi Denki Kabushiki Kaisha | Resin-encapsulated semiconductor device |
-
1984
- 1984-09-11 JP JP59190357A patent/JPS6168943A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05118081A (en) * | 1991-06-06 | 1993-05-14 | Takeshi Mihara | Soil pipe laying method and mounting socket used for method thereof |
| JP2018105030A (en) * | 2016-12-27 | 2018-07-05 | 鹿島建設株式会社 | Ground excavation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6168943A (en) | 1986-04-09 |
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