JPH0258698A - Driving/underground installation device for small diameter pipe - Google Patents
Driving/underground installation device for small diameter pipeInfo
- Publication number
- JPH0258698A JPH0258698A JP21018688A JP21018688A JPH0258698A JP H0258698 A JPH0258698 A JP H0258698A JP 21018688 A JP21018688 A JP 21018688A JP 21018688 A JP21018688 A JP 21018688A JP H0258698 A JPH0258698 A JP H0258698A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- cutting edge
- buried pipe
- leading
- underground installation
- 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
- 238000009434 installation Methods 0.000 title abstract 5
- 239000000945 filler Substances 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 238000009412 basement excavation Methods 0.000 claims description 18
- 238000009933 burial Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 4
- 229910000278 bentonite Inorganic materials 0.000 abstract description 2
- 239000000440 bentonite Substances 0.000 abstract description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 abstract description 2
- 230000001141 propulsive effect Effects 0.000 description 5
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 3
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 3
- 239000003831 antifriction material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、埋設管の先端に刃口を有する先導管を装着し
て、地中に掘進じながら埋設管を圧入進行させる小口径
管の推進埋設装置に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention is directed to a small diameter pipe in which a guide pipe having a cutting edge is attached to the tip of the buried pipe, and the buried pipe is press-fitted while digging underground. This relates to propulsion burial equipment.
［従来の技術］
従来より、人が入れないような小口径管の推進埋設装置
としてオーガースクリュー式のものが主流であり、例え
ば特公昭５５−３１８７７号公報を挙げることができる
。これを第７図に基づいて説明する。[Prior Art] Conventionally, the auger screw type has been the mainstream as a propulsion and burying device for small-diameter pipes that cannot be accessed by people, for example, Japanese Patent Publication No. 55-31877. This will be explained based on FIG.
図において、１は敷設地盤に設けられたピット２の下底
部に設けられた発進台、３は同発進台１上を前進後退す
る水平掘削装置本体で、その前面には筒状のブツシャ４
が固定され、同ブツシャ４と前記ピット２の後面に配設
された反力支持壁５との間に介装された推進ジヤツキ６
によって前記本体３が進退動されるようになっている。In the figure, 1 is a starting platform installed at the bottom of a pit 2 provided in the construction ground, 3 is the main body of the horizontal excavation equipment that moves forward and backward on the starting platform 1, and a cylindrical bushing 4 is attached to the front of the horizontal excavation equipment.
is fixed, and a propulsion jack 6 is interposed between the pusher 4 and the reaction support wall 5 disposed on the rear surface of the pit 2.
The main body 3 is moved forward and backward.
８はケーシングで、その後端をブツシャ４の前部に固着
する。8 is a casing whose rear end is fixed to the front part of the bushing 4.
９はスクリューオーガで、前記ケーシング８内に同心状
に配設され、先端にはピット１０を具え、スクリューオ
ーガ９は前記装置本体３の駆動装置１１により回転する
ようになっている。A screw auger 9 is arranged concentrically within the casing 8 and has a pit 10 at its tip, and the screw auger 9 is rotated by a drive device 11 of the device main body 3.
１２は前記ブツシャ４によって地中に推進される埋設管
で、その先端には刃口リング１４が設けられ、同月ロリ
ング１４と埋設管１２の前端面に固定された先導管本体
１３との間に周方向に亘って所定位置毎に夫々互いに独
立して埋設管１２の軸線方向に伸縮する複数の方向修正
用シリンダー１５が介装される。１９は掘削土砂の排出
口である。Reference numeral 12 denotes a buried pipe that is propelled into the ground by the bushing 4. A cutting ring 14 is provided at the tip of the pipe, and a leading pipe main body 13 fixed to the front end surface of the buried pipe 12 is provided between the rolling ring 14 and the leading pipe main body 13 fixed to the front end surface of the buried pipe 12. A plurality of direction correction cylinders 15 that expand and contract in the axial direction of the buried pipe 12 independently from each other are interposed at predetermined positions in the circumferential direction. 19 is a discharge port for excavated earth and sand.
そこで、前記先導管１３及び刃口リング１４の外径は埋
設管１２の外径と略同−でおり、かつ同心状に配置され
たものからなっている。Therefore, the outer diameter of the leading pipe 13 and the cutting edge ring 14 are approximately the same as the outer diameter of the buried pipe 12, and are arranged concentrically.
［発明が解決しようとする課題］
このような装置にて地盤を掘削して行く場合、特に砂礫
層等の比較的硬い地盤であると、地盤と埋設管１２との
摺動抵抗が大となり、該埋設管１２を推進するための推
力が増大する。[Problems to be Solved by the Invention] When excavating the ground with such a device, especially when the ground is relatively hard such as a gravel layer, the sliding resistance between the ground and the buried pipe 12 becomes large. The thrust for propelling the buried pipe 12 increases.
この推力の増大は推進ジヤツキ６の大型化や埋設管１２
の破壊につながり、長距離推進できない。This increase in thrust is due to the increase in the size of the propulsion jack 6 and the buried pipe 12.
This leads to the destruction of the aircraft, making it impossible to propel it over long distances.
従って、このような点を改良するため、刃口リング１４
の外径を埋設管１２の外径よりも大きくし、埋設管１２
の外径より大きい掘削穴を掘るいわゆるオーバーカット
方式が採用されているが、この場合においても刃口は埋
設管に両軸が一致した状態で先導管を介して取付けられ
る。Therefore, in order to improve this point, the blade mouth ring 14
The outer diameter of the buried pipe 12 is made larger than that of the buried pipe 12.
The so-called overcut method is used in which a hole larger than the outside diameter of the hole is dug, but even in this case, the cutting edge is attached to the buried pipe via the lead pipe with both axes aligned.
このように取付けられた月日付先導管により地山を掘削
すると、埋設管はその自重と土圧の影響により沈み、オ
ーバーカットされた掘削穴の底部に着座することとなる
。When the earth is excavated using the lead pipe installed in this manner, the buried pipe sinks due to its own weight and earth pressure, and comes to sit at the bottom of the overcut excavation hole.
特に先頭の埋設管は、その後端部が後続する埋設管に接
続されていることから、落ち込み、傾斜状となる。この
ため、該先頭の埋設管の前方部が先導管の後方端を押し
下げることになる。In particular, the leading buried pipe has a depressed and inclined shape because its rear end is connected to the following buried pipe. Therefore, the front part of the leading buried pipe pushes down the rear end of the leading pipe.
この押し下げ力によって、先導管はその後端部が沈み、
傾斜状となり、推進の進行とともに少しづつ沈下する。Due to this downward force, the rear end of the leading pipe sinks,
It forms a slope and gradually sinks as propulsion progresses.
一度沈んだ先導管を戻すことは管内作業ができないこと
から、不能である。It is impossible to return the lead pipe once it has sunk, as it is not possible to work inside the pipe.
従って、刃口による掘削穴も下がり、結局埋設方向が段
々下向きになる。Therefore, the hole excavated by the cutting edge also moves downward, and eventually the direction of burial becomes gradually downward.
これを油圧シリンダで刃口の向きをかえることによって
修正することもてきるが、この修正のため、推進作業を
一旦停止しなければならず、それだけ推進能率が低下す
るという問題がある。This can be corrected by changing the direction of the cutting edge using a hydraulic cylinder, but this requires the propulsion operation to be temporarily stopped, which poses the problem of lowering the propulsion efficiency.
また、オーバーカット後、掘削穴と埋設管との間に生じ
る隙間に減摩剤を含む充填材を注入することも考えられ
るが、該減摩剤によっても埋設管の自重や土圧の影響に
よる沈下を阻止するに至らない。In addition, it is possible to inject a filler containing an anti-friction agent into the gap created between the excavated hole and the buried pipe after overcutting, but the anti-friction agent also prevents the impact of the underground pipe's own weight and earth pressure. Not enough to prevent subsidence.
そこで本発明は、簡単な構造により、推進力が少なく、
かつ推進精度の高い小口径管の推進埋設装置を提供する
ことを目的とする。Therefore, the present invention has a simple structure, requires less propulsive force, and
The object of the present invention is to provide a small-diameter pipe propulsion burial device with high propulsion accuracy.
［課題を解決するための手段］
上記目的を達成するために、本発明の小口径管の推進埋
設装置においては、刃口の外径を埋設管の外径より大径
となし、さらに該刃口の軸心を該埋設管の軸心より上部
に偏心させるとともに該刃口の下端と埋設管の下端とを
一致させ、かつ先導管に充填材の注入口を設けたことで
ある。[Means for Solving the Problems] In order to achieve the above object, in the small diameter pipe propulsion burying device of the present invention, the outer diameter of the blade opening is made larger than the outer diameter of the buried pipe, and the blade The axis of the opening is eccentrically placed above the axis of the buried pipe, the lower end of the cutting opening is aligned with the lower end of the buried pipe, and the leading pipe is provided with an injection port for the filler material.
［作用］
地山の掘削による刃口、先導管の前進に伴なっで後続す
る埋設管も押し進められる。この推進時、埋設管はその
下端が刃口の下端と一致していることから、埋設管はそ
の下周部が掘削穴の底部に接しながら水平に進む。これ
によって、先導管も前記埋設管から何等の押し下げ力が
働くことなく、推進力のみが作用することとなって水平
に進む。[Operation] As the cutting edge and leading pipe move forward due to excavation of the ground, the following buried pipe is also pushed forward. During this propulsion, the lower end of the buried pipe coincides with the lower end of the cutting edge, so the buried pipe advances horizontally with its lower circumference touching the bottom of the excavation hole. As a result, the leading pipe also moves horizontally without any downward force acting on it from the buried pipe, and only the propulsive force acts on it.
また、地山は、刃口により後続する埋設管の外径よりも
大きく、しかも刃口上部に隙間を有するごとく掘削され
るから、埋設管は低推進力で押し進められる。Further, since the ground is excavated by the cutting edge so as to be larger than the outer diameter of the buried pipe that follows, and with a gap above the cutting edge, the buried pipe can be pushed forward with low propulsive force.
そして、掘削穴と埋設管との隙間に、注入口より充填材
を注入して該隙間を埋める。Then, a filler is injected into the gap between the excavated hole and the buried pipe through the injection port to fill the gap.
しかして、オーバーカット部すなわち、掘削穴と埋設管
との間に生じる隙間は埋設管の上部が最も大きく、両側
から下方に行くにしたがい狭くなる。Therefore, the overcut portion, that is, the gap created between the excavated hole and the buried pipe is largest at the top of the buried pipe and becomes narrower as it goes downward from both sides.
このような隙間に充填材を注入すると、該充填材は上部
から左右に流下し、該隙間を確実にうめ、地山の崩れを
防止し、−層の推進を容易にする。When a filler is injected into such a gap, the filler flows down from the top to the left and right, reliably filling the gap, preventing the ground from collapsing, and facilitating the propulsion of the layer.
さらに、埋設管の下周部が掘削穴に略接していることか
ら水平方向の蛇行推進か阻止される。Furthermore, since the lower circumferential portion of the buried pipe is approximately in contact with the excavated hole, meandering movement in the horizontal direction is prevented.
「実施例］ 本発明の実施例を第１図〜第４図を参照して説明する。"Example] Embodiments of the present invention will be described with reference to FIGS. 1 to 4.
ここで、前記従来例と同一機能の部材については同一符
号を用いた。Here, the same reference numerals are used for members having the same functions as those in the conventional example.
１は開削されたピット２の底部に設けた架台、３は同架
台１上に載置されたオーカースクリュ式水平掘削装置の
本体であり、その前面には筒状のブツシャ４が固定され
、同ブツシャ４と与圧板５との間に設けた推進用ジヤツ
キ６により進退するようになっている。1 is a pedestal installed at the bottom of an excavated pit 2; 3 is the main body of the ocher screw type horizontal excavation equipment placed on the pedestal 1; a cylindrical bushing 4 is fixed to the front of the rig; It is moved forward and backward by a propulsion jack 6 provided between the pusher 4 and the pressurizing plate 5.
８はスクリューオーガーのケーシングで、その基端を前
記本体１のブツシャ４の前部に設けた排出ボックス７に
連結する。Reference numeral 8 denotes a screw auger casing, the base end of which is connected to a discharge box 7 provided at the front of the bushing 4 of the main body 1.
９はケーシング８に内装された水平掘削用のオガースク
リューであり、その基端を前記排出ボックス７を嵌通し
て掘削装置本体３に連結し、前端に掘削用カッタ１０を
取付けている。該スクリューは掘削装置本体３上の駆動
装置１１により回転するようになっている。Reference numeral 9 denotes an auger screw for horizontal excavation housed in the casing 8, the base end of which is connected to the excavation apparatus main body 3 by fitting through the discharge box 7, and an excavation cutter 10 is attached to the front end. The screw is rotated by a drive device 11 on the excavator main body 3.
１２はヒユーム管等の埋設管であり、その先端に該埋設
管と同径の先導管１３を連結する。12 is a buried pipe such as a hume pipe, and a leading pipe 13 having the same diameter as the buried pipe is connected to the tip thereof.
１４は先導管１３の先端に複数個の方向修正用シリンダ
１５を介して可動自在に設けた刃口である。Reference numeral 14 denotes a cutting edge movably provided at the tip of the leading tube 13 via a plurality of direction correction cylinders 15.
前記刃口１４は、中空状の刃口リング１６と該リング１
６の後部壁から突出した前記先導管１３の外径と略同−
径の短尺リング１７から構成されている。The cutting edge 14 includes a hollow cutting edge ring 16 and the ring 1.
The diameter is approximately the same as the outer diameter of the leading pipe 13 protruding from the rear wall of 6.
It is composed of a short ring 17 with a diameter.
そして、前記刃口リング１６の外径は前記短尺リング１
７の外径よりも５〜２０ｍｍ程度大きく設定されており
、かつ該リング１６の軸心Ｃを短尺リング１７の軸心Ｃ
′より上方に偏心ｅさせ、該リング１６の下面と短尺リ
ング１７の下面とを一致させた。従って、刃口１４の短
尺リング１７を先導管１３に嵌装すれば、刃口１４は先
導管１３及び埋設管１２に対して偏心し、かつ雨下面は
一致することとなる。The outer diameter of the cutting edge ring 16 is the same as that of the short ring 1.
The outer diameter of the ring 16 is set approximately 5 to 20 mm larger than the outer diameter of the ring 16, and the axis C of the ring 16 is set to be approximately 5 to 20 mm larger than the outer diameter of the short ring 17.
The lower surface of the ring 16 and the lower surface of the short ring 17 were made to coincide with each other by making the ring 16 eccentric to the upper side. Therefore, if the short ring 17 of the cutting edge 14 is fitted into the leading pipe 13, the cutting edge 14 will be eccentric with respect to the leading pipe 13 and the buried pipe 12, and the lower surfaces thereof will coincide.
さらに、前記ケーシング８．スクリュー９は刃口１４と
同心状に配設されることから、先導管１３、埋設管１２
に対して偏心した状態となる。Furthermore, the casing 8. Since the screw 9 is arranged concentrically with the cutting edge 14, the leading pipe 13 and the buried pipe 12
It becomes eccentric with respect to.
１８は充填材の注入口、１９は土砂排出口である。18 is a filler injection port, and 19 is a soil discharge port.
次に、実施例の作用について述べる。Next, the operation of the embodiment will be described.
推進用ジヤツキ６を作動させる（常時、本体３を押圧状
態にしておく）とともに駆動装置１１の駆動によりスク
リュー９．掘削用カッター０か回転し、該掘削用カッタ
ー０により地山２０を掘削する。The propulsion jack 6 is operated (the main body 3 is kept in a pressed state at all times) and the screw 9 is driven by the drive device 11. The excavation cutter 0 rotates, and the earth 20 is excavated by the excavation cutter 0.
切り出された土砂は、オーガースクリュー９によってケ
ーシング８内を移送され、排出ボックス７を経て排出口
１９から排出される。The cut earth and sand is transported through the casing 8 by the auger screw 9, passes through the discharge box 7, and is discharged from the discharge port 19.
一方、前記地山２０の掘削によって、刃口１４は推進用
ジヤツキ６の推進力が本体３．埋設管１２、先導管１３
を経て伝達されて前進する。On the other hand, due to the excavation of the ground 20, the propulsive force of the propulsion jack 6 is applied to the cutting edge 14 of the main body 3. Buried pipe 12, leading pipe 13
It is transmitted through the process and moves forward.
該刃口１４の前進によって、刃口後方に該刃口外径に相
当する掘削穴２１が得られる。この掘削穴２１は後続す
る先導管１３及び埋設管１２より大きく、上部に隙間２
２を有することから、これら両管は低推進力で推進され
るのである。By advancing the cutting edge 14, an excavated hole 21 corresponding to the outer diameter of the cutting edge is obtained behind the cutting edge. This excavated hole 21 is larger than the following leading pipe 13 and buried pipe 12, and there is a gap 2 at the top.
2, both of these tubes are propelled with low propulsion force.
しかも、前記隙間２２に注入口１８からベントナイト等
の滑剤を含む充填材２３を注入ずれは、さらに推進力が
低減される。Furthermore, if the filler 23 containing a lubricant such as bentonite is injected into the gap 22 from the injection port 18, the propulsive force is further reduced.
さらに、先導管１３．埋設管１２は前記掘削穴２１の底
部を滑りながら、水平に進んでいき、刃口１４も埋設管
１２．先導管１３の影響を受けることなく水平に進むの
でおる。Furthermore, the leading pipe 13. The buried pipe 12 advances horizontally while sliding on the bottom of the excavated hole 21, and the cutting edge 14 also moves along the buried pipe 12. It moves horizontally without being affected by the leading pipe 13.
なあ、先導管１３は図示例では３本の管を接続したもの
であるが、最前部の先導管１３を埋設管１２に接続する
ようにしてもよい。Although the leading pipe 13 is three pipes connected in the illustrated example, the leading pipe 13 at the forefront may be connected to the buried pipe 12.
また、前記実施例では刃口１４を先導管１３に対して偏
心させたが、第５図〜第６図に示すように、刃口１４及
び先頭の先導管１３を、埋設管１２と同心状の後方の先
導管１３に対して偏心フランジ２４を介して偏心させる
ようにすることもできる。この場合の注入口１８は先導
管１３に設ける。［発明の効果］
本発明は以上のように構成されているので、次に記載す
る効果を奏する。In addition, in the embodiment described above, the cutting edge 14 was made eccentric to the leading pipe 13, but as shown in FIGS. It is also possible to make it eccentric to the rear leading pipe 13 via an eccentric flange 24. In this case, the injection port 18 is provided in the leading pipe 13 . [Effects of the Invention] Since the present invention is configured as described above, it produces the following effects.
刃口の外径を埋設管の外径より大径となし、さらに該刃
口の軸心を該埋設管の軸心より上部に偏心させるととも
に該刃口の下端と埋設管の下端とを一致させたから、刃
口による掘削穴は先導管。The outer diameter of the cutting edge is larger than the outer diameter of the buried pipe, and the axis of the cutting edge is eccentrically placed above the axis of the buried pipe, and the lower end of the cutting edge is aligned with the lower end of the buried pipe. Because of this, the hole drilled by the cutting edge is a leading pipe.
埋設管より大きく掘削されることとなって、先導管、埋
設管の推進力を著しく低減することかできるとともに、
刃口は後続する先導管、埋設管が掘削穴の底部をすりな
がら、先導管、埋設管の影響を受けることなく水平に進
むこととなって、推進精度が著しく向上するとともに推
進作業性が大巾にアップする。Since the excavation is larger than the buried pipe, the driving force of the lead pipe and buried pipe can be significantly reduced, and
The cutting edge advances horizontally without being affected by the leading pipe or buried pipe as it slides along the bottom of the excavation hole, which significantly improves propulsion accuracy and greatly improves propulsion workability. Upload to width.
また、注入口より滑剤を含む充填材を注入することによ
って、先導管、埋設管の推進力はさらに低減することが
できる。Further, by injecting a filler containing a lubricant through the injection port, the driving force of the leading pipe and the buried pipe can be further reduced.
第１図は本発明の実施例を示す縦断面図、第２図は本発
明の要部拡大縦断面図、第３図は第２図のニーＩ線矢視
図、第４図は第２図の■−■線断面図、第５図は本発明
の他の実施例を示す縦断面図、第６図は第５図の■−■
線矢視図、第７図は従来例を示す縦断面図である。
３・・・・・・掘削装置本体 ６・・・・・・推進用
ジヤツキ１０・・・・・・掘削用カッタ １２・・・
・・・推進管１３・・・・・・先導管 １４・
・・・・・刃口１５・・・・・・修正用シリンダ １８
・・・・・・注入口２４・・・・・・偏心フランジFIG. 1 is a vertical sectional view showing an embodiment of the present invention, FIG. 2 is an enlarged longitudinal sectional view of main parts of the present invention, FIG. 3 is a view taken along the knee I line in FIG. 2, and FIG. 5 is a vertical sectional view showing another embodiment of the present invention, and FIG. 6 is a sectional view taken along the line ■-■ of FIG.
A line arrow view and FIG. 7 are longitudinal cross-sectional views showing a conventional example. 3... Excavation equipment body 6... Propulsion jack 10... Excavation cutter 12...
... Propulsion pipe 13 ... Leading pipe 14.
...Blade mouth 15 ... Cylinder for correction 18
... Inlet 24 ... Eccentric flange
Claims (1)
埋設管を取付け、さらにさらにその前部に先導管を設け
、この先導管の前部に修正用シリンダを介して可動自在
に刃口を設け、該埋設管及び先導管内に回転スクリュー
を内装したケーシングを配設し、該スクリューの先端に
掘削用カッタを設けてなる小口径管の推進埋設装置にお
いて、前記刃口の外径を埋設管の外径より大径となし、
さらに該刃口の軸心を該埋設管の軸心より上部に偏心さ
せるとともに該刃口の下端と埋設管の下端とを一致させ
、かつ先導管に充填材の注入口を設けたことを特徴とす
る小口径管の推進埋設装置。A buried pipe is attached to the front of the excavation equipment body that is pushed by a propulsion jack, and a leading pipe is further provided in the front of the buried pipe, and a movable cutting edge is provided in the front of this leading pipe via a correction cylinder. In a small-diameter pipe propulsion burying device in which a casing with a rotating screw inside is disposed inside the buried pipe and the leading pipe, and an excavation cutter is provided at the tip of the screw, the outer diameter of the cutter is set to the diameter of the buried pipe. With a diameter larger than the outer diameter,
It is further characterized in that the axis of the cutting edge is eccentrically placed above the axis of the buried pipe, the lower end of the cutting edge is aligned with the lower end of the buried pipe, and a filler injection port is provided in the leading pipe. A device for propulsion and burial of small diameter pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21018688A JPH0258698A (en) | 1988-08-24 | 1988-08-24 | Driving/underground installation device for small diameter pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21018688A JPH0258698A (en) | 1988-08-24 | 1988-08-24 | Driving/underground installation device for small diameter pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0258698A true JPH0258698A (en) | 1990-02-27 |
Family
ID=16585209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21018688A Pending JPH0258698A (en) | 1988-08-24 | 1988-08-24 | Driving/underground installation device for small diameter pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0258698A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0422589U (en) * | 1990-06-08 | 1992-02-25 | ||
| KR100930081B1 (en) * | 2009-06-03 | 2009-12-07 | 주식회사 한국종합기술 | Excavation apparatus for propulsion pipes with spiral outlet pipe |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5275032A (en) * | 1975-12-18 | 1977-06-23 | Tokai Kogyo Co Ltd | Method of shield construction and injection device for its grout material |
| JPS6117700A (en) * | 1985-06-24 | 1986-01-25 | 三和機材株式会社 | Embedded pipe propelling method |
-
1988
- 1988-08-24 JP JP21018688A patent/JPH0258698A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5275032A (en) * | 1975-12-18 | 1977-06-23 | Tokai Kogyo Co Ltd | Method of shield construction and injection device for its grout material |
| JPS6117700A (en) * | 1985-06-24 | 1986-01-25 | 三和機材株式会社 | Embedded pipe propelling method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0422589U (en) * | 1990-06-08 | 1992-02-25 | ||
| KR100930081B1 (en) * | 2009-06-03 | 2009-12-07 | 주식회사 한국종합기술 | Excavation apparatus for propulsion pipes with spiral outlet pipe |
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