JPS62280490A - Consolidation type direction compensator for propelling underground pipe body - Google Patents
Consolidation type direction compensator for propelling underground pipe bodyInfo
- Publication number
- JPS62280490A JPS62280490A JP12359086A JP12359086A JPS62280490A JP S62280490 A JPS62280490 A JP S62280490A JP 12359086 A JP12359086 A JP 12359086A JP 12359086 A JP12359086 A JP 12359086A JP S62280490 A JPS62280490 A JP S62280490A
- Authority
- JP
- Japan
- Prior art keywords
- propulsion
- head
- consolidation
- ground
- direction correction
- 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
- 238000007596 consolidation process Methods 0.000 title claims description 24
- 239000000470 constituent Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000007788 liquid Substances 0.000 description 7
- 238000005056 compaction Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
６、発明の詳細な説明
〔産業上の利用分野〕
この発明は、地中で管体を推進する場合に使用する圧密
型方向修正装置に関するものである。Detailed Description of the Invention 6. Detailed Description of the Invention [Field of Industrial Application] This invention relates to a consolidation type direction correction device used when propelling a pipe underground.
従来、地中で小径例えば外径３００〜４００コの下水道
管、上水道管、ケーブル用鞘管等の管体を推進埋設する
場合は、最前部の被推進管の前端部に地盤圧密用ヘッド
を取付けて、地盤を圧密しながら推進を行なっていた。Conventionally, when propelling and burying pipe bodies of small diameters, such as sewer pipes, water supply pipes, cable sheath pipes, etc., with an outer diameter of 300 to 400 mm underground, a ground consolidation head was installed at the front end of the most forward-propelled pipe. It was installed and propelled while compacting the ground.
しかるに、前記従来の場合は、推進中に推進方向の狂い
が生じたとき、その方向の狂いを修正することができな
いという問題がある。However, in the conventional case, when a deviation in the propulsion direction occurs during propulsion, there is a problem in that the deviation in the direction cannot be corrected.
この発明は前述の問題を有利に解決できる地中管体推進
用圧密型方向修正装置を提供することを目的とするもの
であって、この発明の要旨とするところは、前部推進管
１内の周囲に、前後方向に延長する４本の方向修正用液
圧シリンダ２，３゜４．５が、推進管周囲方向に間隔を
おいて配置され、各液圧シリンダの後端部は前部推進管
１の後部に固定され、その前部推進管１の前部には、４
分割された地盤圧密用ヘッド６が配置され、その地盤圧
密用ヘッド６を構成する４つのヘッド構成部材７，８，
９，１０は、それぞれ前記４本の方向修正用液圧シリン
ダ２，３，４，５の前端部に固定されていることを特徴
とする地中管体推進用圧密型方向修正装置にある。The object of the present invention is to provide a consolidation type direction correction device for propulsion of an underground tube body which can advantageously solve the above-mentioned problems. Four direction correction hydraulic cylinders 2, 3° 4.5 extending in the front-rear direction are arranged around the propulsion tube at intervals, and the rear end of each hydraulic cylinder extends from the front. It is fixed to the rear part of the propulsion tube 1, and the front part of the front propulsion tube 1 has 4
The divided ground consolidation head 6 is arranged, and four head constituent members 7, 8, which constitute the ground consolidation head 6 are arranged.
Reference numerals 9 and 10 refer to a consolidation type direction correction device for propulsion of an underground pipe body, which is fixed to the front end portions of the four direction correction hydraulic cylinders 2, 3, 4, and 5, respectively.
次にこの発明を図示の例によって詳細に説明する。 Next, the present invention will be explained in detail using illustrated examples.
第１図ないし第７図はこの発明の第１実施例に係る地中
管体推進用圧密型方向修正装置を示すものであって、鋼
製前部推進管１内の周囲に、前後方向に延長する４本の
方向修正用液圧シリンダ２゜３．４．５が、推進管周囲
方向に等角度間隔で配置され、各液圧シリンダにおける
シリンダ１１の後端から後方に突出しているピストン杆
１２の後端部に螺杵１３が連設され、その螺杵１ろは前
部推進管１の後端フランツ１４に挿通され、その螺杵１
３に螺合されたナツト１５によりピストン杆１２の後端
部が前記後端フランツ１４に固定さｎ、かつ前記液圧シ
リンダ２，３，４．５における各シリンダ１１は前部推
進管１の前端板１６に設けられた円形の透孔１７に嵌設
されているスライド軸受１８に摺動自在に嵌合され、さ
らに前記シリンダ１１と透孔１７との間にはスライド軸
受１８の前部においてゴム製ンールリング１９が嵌設さ
れている。1 to 7 show a consolidation type direction correction device for propulsion of an underground tube according to a first embodiment of the present invention, in which a direction adjustment device is installed around the inside of a steel front propulsion tube 1 in the front and back direction. Four extending hydraulic cylinders 2゜3.4.5 for direction correction are arranged at equal angular intervals in the circumferential direction of the propulsion tube, and each hydraulic cylinder has a piston rod that protrudes rearward from the rear end of the cylinder 11. A screw punch 13 is connected to the rear end of the screw punch 12, and the screw punch 1 is inserted into the rear end flange 14 of the front propulsion tube 1.
The rear end of the piston rod 12 is fixed to the rear end flange 14 by a nut 15 screwed into the hydraulic cylinder 2 , 3 , 4 . It is slidably fitted into a slide bearing 18 that is fitted into a circular through hole 17 provided in the front end plate 16, and furthermore, between the cylinder 11 and the through hole 17, there is a groove at the front of the slide bearing 18. A rubber ring 19 is fitted.
前方に向かって拡大している円錐形の凹面２０を有しか
つ等角度で４分割されている地盤圧筐用ヘッド６は前記
前部推進管１の前部に配置され、かつ地盤圧密用ヘッド
６を構成する各ヘッド構成部材７，８，９，１０の後部
に設けられ之凹部２１に、各液圧シリンダ２，３，４．
５におけるシリンダ１１の前端部に設けられた突出部２
２が区会され、さらに各ヘッド構成部材７，８．９．１
０に挿通された固定用ボルト２３は突出部２２に設けら
れ之雌ねじ孔に螺合されている。A ground consolidation head 6, which has a conical concave surface 20 expanding toward the front and is divided into four parts at equal angles, is disposed in front of the front propulsion pipe 1, and is a ground consolidation head 6. Each hydraulic cylinder 2, 3, 4, .
The protrusion 2 provided at the front end of the cylinder 11 in 5
2 are divided, and each head component member 7, 8.9.1
The fixing bolt 23 inserted into the protrusion 22 is screwed into a female threaded hole.
前記各液圧シリンダ２，３，４．５におけるピストン杆
１２に設けられた液圧ンリンダ沖長用送液路２４の前端
部はシリンダ１１内に開口し、かつ前記ピストン杆１２
に設けられた液圧シリンダ短縮用送液路の前端部はシリ
ンダ１１とピストン杆１２との間に接続され、各送液路
２４，２５の後端部に接続された送液管２６．２７は、
それぞれ地上に設置された送液イング装置に対し切換制
御パルプを介して接続され、各液圧シリンダ２゜３．４
．５を単独で伸縮したり、任意位置の複数の液圧シリン
ダを伸縮することができる。The front end of the liquid supply path 24 for the hydraulic cylinder offshore length provided in the piston rod 12 of each of the hydraulic cylinders 2, 3, 4.5 opens into the cylinder 11, and
The front end of the liquid feed path for shortening the hydraulic cylinder provided in is connected between the cylinder 11 and the piston rod 12, and the liquid feed pipes 26 and 27 are connected to the rear ends of each of the liquid feed paths 24 and 25. teeth,
Each hydraulic cylinder is connected to a liquid feeding device installed on the ground via a switching control pulp.
．． 5 can be expanded and contracted individually, or multiple hydraulic cylinders at arbitrary positions can be expanded and contracted.
前記前部推進管１の後端部に第２推進管２８の前端部が
ゲルト２９により連結され、その第２推進管２Ｂ内に傾
斜計３０が固定され、かつ第２推進管２８における環状
後端板６１には、発進用立坑内に設置されたレーザー光
式測量機械からのレーザー光線を受けるターゲット３２
を有するターケ゛ット装置３３が固定され、さらに前記
前端板１６の中央部には送水孔３４およびその前部に連
らなる弁室３５が設けられ、その弁室６５の前部には、
内周に通水溝３６を有する環状ストン・ぐ３７が嵌合さ
れて、スナップリング３８により固定されている。また
前部推進管１の内側には前後方向に延長するガイド溝４
３が設けられ、各シリンダ１１の後端部に固定されたが
イド突起４４は前記がイド溝４６に嵌入されている。The front end of the second propulsion tube 28 is connected to the rear end of the front propulsion tube 1 by a gel 29, and the inclinometer 30 is fixed in the second propulsion tube 2B. The end plate 61 has a target 32 that receives a laser beam from a laser beam surveying machine installed in the starting shaft.
A target device 33 having a water supply hole 34 and a valve chamber 35 connected to the front portion thereof are provided in the center of the front end plate 16, and a valve chamber 35 is provided in the front portion of the valve chamber 65.
An annular stone 37 having a water passage groove 36 on its inner periphery is fitted and fixed by a snap ring 38. Also, on the inside of the front propulsion tube 1, there is a guide groove 4 extending in the front and rear direction.
3 is provided and fixed to the rear end of each cylinder 11, and the idle protrusion 44 is fitted into the idle groove 46.
前記弁室６５内に球体からなる逆上弁体３９が収容され
、かつ前記送水孔３４に接続された送水管４０は、地上
に設置されたポンプ装置に対し開閉弁を介して接続され
、必要に応じ送水管４０゜送水孔３４および逆止弁を通
って地盤圧密用ヘッド６の前方の地盤に給水され、その
地盤が軟弱化される。また第２推進管の後端部には多数
の推進管４１が順次継足し連結される。A reverse valve body 39 made of a spherical body is accommodated in the valve chamber 65, and a water pipe 40 connected to the water supply hole 34 is connected to a pump device installed on the ground via an on-off valve, Accordingly, water is supplied to the ground in front of the ground consolidation head 6 through the water pipe 40° water supply hole 34 and check valve, and the ground is softened. Further, a large number of propulsion tubes 41 are sequentially added and connected to the rear end portion of the second propulsion tube.
第８図ないし第１１図はこの発明の圧苦型方向修正装置
を使用して推進管の推進方向を下方に修正する場合の一
例を示すものであって、まず第８図に示すように、全数
のヘッド構成部材７，８゜９．１０が後退位置に置かれ
ている状態から、第９図に示すように、下部の２つのヘ
ッド構成部材７．８を前進させたのち、第１０図に示す
ように。FIGS. 8 to 11 show an example of correcting the propulsion direction of the propulsion tube downward using the compression type direction correction device of the present invention. First, as shown in FIG. From the state in which all the head components 7,8°9.10 are placed in the retracted position, as shown in FIG. 9, the lower two head components 7.8 are moved forward, and then as shown in FIG. As shown.
それらのヘッド構成部材７，８を後退移動させて、地盤
圧密用ヘッド６の下部前方の地盤に空間４６を形成する
。次に発進用立坑内に設置されている推進装置により各
推進管および地盤圧密用ヘッド６を推進すると、地盤圧
密用ヘッド乙の前方下部の地盤に空間４３が形成されて
いるので、第１１図に示すように、推進管が下向きに方
向修正されていく。The head components 7 and 8 are moved backward to form a space 46 in the ground in front of the lower part of the ground consolidation head 6. Next, when each propulsion pipe and the ground consolidation head 6 are propelled by the propulsion device installed in the starting shaft, a space 43 is formed in the ground at the lower front of the ground consolidation head B, as shown in Fig. 11. As shown in the figure, the direction of the propulsion tube is corrected downward.
同様にして、上側または左側あるいは右側のヘッド構成
部材を進退移動して空間を形成したのち、推進管を推進
することにより、推進管の推進方向を上方または左側あ
るいは右側にも修正することができる。Similarly, the propulsion direction of the propulsion tube can be adjusted upward, to the left, or to the right by moving the upper, left, or right head component back and forth to form a space and then propelling the propulsion tube. .
第１２図および第１６図はこの発明の圧密型方向修正装
置を使用して推進管の推進、方向を下方に修正する場合
の他の一例を示すものであって、下部の２つのヘッド構
成部材７，８が前進位置に置かれると共に、上部の２つ
のヘッド構成部材９゜１０が後退位置に置かれた状態で
、推進管が推進される。このようにすると、推進抵抗に
よる下向きの分力が地盤圧密用ヘッド６に作用するので
、推進方向が下側に修正される。FIG. 12 and FIG. 16 show another example in which the direction of propulsion of the propulsion tube is corrected downward using the compaction type direction correction device of the present invention, in which two lower head constituent members are used. 7 and 8 are placed in the forward position, and the two upper head components 9 and 10 are placed in the retracted position, and the propulsion tube is propelled. In this way, the downward force due to the propulsion resistance acts on the ground consolidation head 6, so that the propulsion direction is corrected downward.
同様にして、上側または左側あるいは右側のヘッド構成
部材を前進位置に置いて推進管を推進することにより、
推進方向を上側または左側あるいは右側に修正すること
ができる。Similarly, by placing the upper, left or right head component in the forward position and propelling the propulsion tube,
The direction of propulsion can be modified upward, to the left, or to the right.
第１４図はこの発明の第２実施例を示すものであって、
４分割されている地盤圧密用ヘッド６が前方に向かって
縮径する円錐形周面４２を備えているがその他の構成は
第１実施例の場合と同様である。FIG. 14 shows a second embodiment of the invention,
The ground consolidation head 6, which is divided into four parts, has a conical peripheral surface 42 whose diameter decreases toward the front, but the other configuration is the same as that of the first embodiment.
この発明を実施する場合、前記ヘッド構成部材７．８，
９，１０とシリンダ１１とを予め一体に製作してもよい
。When carrying out this invention, the head component 7.8,
9, 10 and the cylinder 11 may be manufactured integrally in advance.
この発明によれば、前部推進管１内の周囲に、前後方向
に延長する４本の方向修正用液圧シリンダ２，３，４，
５が、推進管周囲方向に間隔をおいて配置され、各液圧
シリンダの後端部は前部推進管１の後部に固定され、そ
の前部推進管１の前部には、４分割され之地盤圧密用ヘ
ッド６が配置され、その地盤圧密用ヘッド６を構成する
４つのヘッド構成部材７，８，９．１０は、それぞれ前
記４本の方向修正用液圧シリンダ２，３，４，５の前端
部に連結されているので、４つのヘッド構成部材７，８
，９．１０のうち、一部のヘッド構成部材を前進したの
ち後退させて、地盤圧密用ヘッド乙の前部にある地盤の
一部に空間を形成したり、あるいは４つのヘッド構成部
材７，８，９゜１０のうち、一部のヘッド構成部材を他
のヘッド構成部材よりも突出させた状態で、発進用立坑
内に設置した推進装置によって推進管を推進していくこ
とにより、推進管の推進方向を任意方向に容易に修正す
ることができ、かつ簡単な手段によって推進方向の修正
を行なうことができる効果が得られる。According to this invention, four direction correction hydraulic cylinders 2, 3, 4 extending in the front-rear direction are provided around the front propulsion pipe 1.
5 are arranged at intervals in the circumferential direction of the propulsion tube, the rear end of each hydraulic cylinder is fixed to the rear of the front propulsion tube 1, and the front portion of the front propulsion tube 1 is divided into four parts. The ground consolidation head 6 is arranged, and the four head constituent members 7, 8, 9. 5, the four head constituent members 7, 8
, 9.10, by moving some of the head components forward and then retreating to form a space in a part of the ground in front of the ground consolidation head B, or by moving some of the head components 7, 8,9゜10, by propelling the propulsion pipe with a propulsion device installed in the starting shaft with some of the head constituent members protruding from other head constituent members, the propulsion pipe The advantage is that the direction of propulsion can be easily corrected to any direction, and the direction of propulsion can be corrected by simple means.
第１図ないし第７図はこの発明の第１実施例を示すもの
であって、第１図は地中管体推進用圧密型方向修正装置
を第２図のＡ−Ａ線に沿って切断した縦断側面図、第２
図はその圧密型方向修正装置の一部切欠拡大正面図、第
６図は第１図の一部を拡大して示す縦断側面図、第４図
は第１図のＢ−Ｂ線拡大断面図、第５図は第１図のＣ−
Ｃ線拡大断面図、第６図は逆上送水パルプを示す縦断側
面図、第７図はその正面図である。
第８図ないし第１１図はこの発明の圧密型方向修正装置
による方向修正順序の一例を示す側面図、第１２図は下
部のヘッド構成部材を突出させて下向きに方向全修正す
るときの状態を示す縦断側面図、第１６１図はその平面
図である。第１４図はこの発明の第２実施例に係る地中
管推進用圧密型方向修正装置を示す縦断側面図である。
図において、１は前部推進管、２ないし５は方向修正用
液圧シリンダ、６は地盤圧密用ヘッド、７ないし１０は
ヘッド構成部材、１１はシリンダ、１２はピストン杆、
１８はステ１ド軸受、２０は凹面、２４は液圧シリンダ
伸長用送液路、２５は液圧シリンダ短縮用送液路、６４
は送水管、３９は逆上弁体、４０は送水管、４２は円錐
形周面である。
第８図
第９図
第１０図
第１１図1 to 7 show a first embodiment of the present invention, in which FIG. 1 shows a compaction type direction correction device for propulsion of an underground tube body cut along line A-A in FIG. Vertical side view, 2nd
The figure is an enlarged partially cutaway front view of the consolidation type direction correction device, FIG. 6 is a longitudinal side view showing an enlarged part of FIG. 1, and FIG. 4 is an enlarged sectional view taken along line B-B of FIG. , Figure 5 is C- in Figure 1.
FIG. 6 is an enlarged sectional view taken along line C, FIG. 6 is a vertical sectional side view showing the upside-down water-fed pulp, and FIG. 7 is a front view thereof. 8 to 11 are side views showing an example of the order of direction correction by the compaction type direction correction device of the present invention, and FIG. 12 shows the state when the lower head component is protruded and the entire direction is corrected downward. The vertical side view shown in FIG. 161 is a plan view thereof. FIG. 14 is a longitudinal sectional side view showing a consolidation type direction correction device for underground pipe propulsion according to a second embodiment of the present invention. In the figure, 1 is a front propulsion pipe, 2 to 5 are hydraulic cylinders for direction correction, 6 is a ground consolidation head, 7 to 10 are head components, 11 is a cylinder, 12 is a piston rod,
18 is a stem bearing, 20 is a concave surface, 24 is a liquid feeding path for extending the hydraulic cylinder, 25 is a liquid feeding path for shortening the hydraulic cylinder, 64
39 is a water pipe, 39 is an inversion valve body, 40 is a water pipe, and 42 is a conical peripheral surface. Figure 8 Figure 9 Figure 10 Figure 11
Claims (1)
向修正用液圧シリンダ２、３、４、５が、推進管周囲方
向に間隔をおいて配置され、各液圧シリンダの後端部は
前部推進管１の後部に固定され、その前部推進管１の前
部には、４分割された地盤圧密用ヘッド６が配置され、
その地盤圧密用ヘッド６を構成する４つのヘッド構成部
材７、８、９、１０は、それぞれ前記４本の方向修正用
液圧シリンダ２、３、４、５の前端部に固定されている
ことを特徴とする地中管体推進用圧密型方向修正装置。Four direction correction hydraulic cylinders 2, 3, 4, and 5 extending in the front-rear direction are arranged around the front propulsion pipe 1 at intervals in the circumferential direction of the propulsion pipe. The rear end part is fixed to the rear part of the front propulsion pipe 1, and a four-divided ground consolidation head 6 is arranged at the front part of the front propulsion pipe 1.
The four head constituent members 7, 8, 9, and 10 constituting the ground consolidation head 6 are fixed to the front ends of the four direction correction hydraulic cylinders 2, 3, 4, and 5, respectively. A consolidation type direction correction device for underground tube propulsion characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12359086A JPS62280490A (en) | 1986-05-30 | 1986-05-30 | Consolidation type direction compensator for propelling underground pipe body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12359086A JPS62280490A (en) | 1986-05-30 | 1986-05-30 | Consolidation type direction compensator for propelling underground pipe body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62280490A true JPS62280490A (en) | 1987-12-05 |
Family
ID=14864364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12359086A Pending JPS62280490A (en) | 1986-05-30 | 1986-05-30 | Consolidation type direction compensator for propelling underground pipe body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62280490A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204237A (en) * | 2018-02-02 | 2018-06-26 | 中铁隧道局集团有限公司 | A kind of shield machine attitude adjusting method |
| CN108316935A (en) * | 2018-02-02 | 2018-07-24 | 中铁隧道局集团有限公司 | A kind of shield machine attitude adjusting method of complex controll |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4936801U (en) * | 1972-05-17 | 1974-04-01 | ||
| JPS503133A (en) * | 1973-05-15 | 1975-01-14 | ||
| JPS5247246A (en) * | 1975-10-13 | 1977-04-14 | Hitachi Ltd | Cage floor of elevator |
| JPS605760A (en) * | 1983-06-24 | 1985-01-12 | Masayuki Otsuki | Manufacture of printed coil |
-
1986
- 1986-05-30 JP JP12359086A patent/JPS62280490A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4936801U (en) * | 1972-05-17 | 1974-04-01 | ||
| JPS503133A (en) * | 1973-05-15 | 1975-01-14 | ||
| JPS5247246A (en) * | 1975-10-13 | 1977-04-14 | Hitachi Ltd | Cage floor of elevator |
| JPS605760A (en) * | 1983-06-24 | 1985-01-12 | Masayuki Otsuki | Manufacture of printed coil |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204237A (en) * | 2018-02-02 | 2018-06-26 | 中铁隧道局集团有限公司 | A kind of shield machine attitude adjusting method |
| CN108316935A (en) * | 2018-02-02 | 2018-07-24 | 中铁隧道局集团有限公司 | A kind of shield machine attitude adjusting method of complex controll |
| CN108204237B (en) * | 2018-02-02 | 2019-03-29 | 中铁隧道局集团有限公司 | A kind of shield machine attitude adjusting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3970157A (en) | Ram-borer apparatus | |
| DE2045528C3 (en) | Connection device for the end wall and housing jacket of a fluid cylinder | |
| US4112637A (en) | Removable press anchor with destructible anchor body | |
| DE69426261T2 (en) | REVERSIBLE HOUSING FOR AN IMPACT DEVICE IN THE HOLE | |
| DE102015106333A1 (en) | Internal pipe manipulator for driving on pipe systems, in particular of branch pipes in pipe systems | |
| JPS62280490A (en) | Consolidation type direction compensator for propelling underground pipe body | |
| EP0163068A1 (en) | Cutting head of a rock-cutting machine, especially a selective-cut heading machine | |
| US3919851A (en) | Apparatus for the excavation and lining of subterranean tunnels | |
| JP4616018B2 (en) | Buried pipe propulsion device | |
| US4463938A (en) | Internal clamping of pipes | |
| JPS60255598A (en) | Regulator for pitch of propeller blade of ship | |
| JP3340678B2 (en) | Special middle pressing device for curves | |
| JP3167163B2 (en) | Direction control mechanism of advanced equipment | |
| JP3961071B2 (en) | Double propulsion machine for pipe pushing | |
| JPS594035B2 (en) | Excavation direction setting device for underground drilling machine | |
| JP6827622B1 (en) | How to dig a sliding back anchor and excavator | |
| DE2841819B2 (en) | Ring seals for telescopic connectors of riser pipes for underwater drilling | |
| DE8615617U1 (en) | Device for centering and tensioning two pipe bodies to be welded together | |
| DE102008038964B4 (en) | Mobile device unit for generating a survey in trays and fillings | |
| JPH0193279U (en) | ||
| JPH0430095A (en) | Direction correcting method in burying small bore pipe and small bore pipe burying device | |
| JPH053590Y2 (en) | ||
| JP3086041B2 (en) | Propulsion body propulsion control method | |
| JPS6139023Y2 (en) | ||
| JP2691053B2 (en) | Erector gripping mechanism |