JPS63210396A - Method and device for water jet propulsion construction - Google Patents
Method and device for water jet propulsion constructionInfo
- Publication number
- JPS63210396A JPS63210396A JP4460587A JP4460587A JPS63210396A JP S63210396 A JPS63210396 A JP S63210396A JP 4460587 A JP4460587 A JP 4460587A JP 4460587 A JP4460587 A JP 4460587A JP S63210396 A JPS63210396 A JP S63210396A
- Authority
- JP
- Japan
- Prior art keywords
- movable part
- leading pipe
- injection port
- pipe
- pressure water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 31
- 238000000034 method Methods 0.000 title claims description 14
- 238000010276 construction Methods 0.000 title description 3
- 238000002347 injection Methods 0.000 claims description 24
- 239000007924 injection Substances 0.000 claims description 24
- 238000009412 basement excavation Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (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】
〔産業上の利用分野〕
この発明は、電気通信ケーブル、光通信ケーブル、ガス
バイブライン、上下水道等のライフライン用地下管きょ
あるいは管路の削進及び築造を行うためのウォータジェ
ット推進工法及びその装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] This invention is applicable to the excavation and construction of underground pipes or conduits for lifelines such as telecommunication cables, optical communication cables, gas vibrating lines, and water and sewage lines. The present invention relates to a water jet propulsion method and its equipment.
従来、地下管きょあるいは管路を計画するに際し、管径
が小さい場合、例えば800鶴未満の場合は、切羽にお
いて人力で作業することができず、さらに市街地では、
道路が狭いことや、交通量が多く、騒音や振動に関する
公害問題等から開削工法を採用することができず、この
ため、小口径推進工法を用いている。Conventionally, when planning underground pipes or conduits, if the diameter of the pipe is small, for example, if it is less than 800 mm, it is impossible to work manually at the face, and furthermore, in urban areas,
The open cut method cannot be used due to narrow roads, high traffic volume, and pollution problems related to noise and vibration, so the small-diameter propulsion method is used.
この小口径推進工法には種々のものがあるが、その殆ど
が1次元(直線)の推進であり、中には方向を制御する
装置を備えているものもあるが、その方向制御は直進の
推進が直線軌道からずれた場合の方向を直進に修正する
ためのものであり、従って、計画線内に障害物のない場
合しか使用できない。There are various small-diameter propulsion methods, but most of them are one-dimensional (straight line) propulsion, and some are equipped with a device to control the direction, but the direction control is straight-line propulsion. It is used to correct the direction of propulsion when it deviates from a straight trajectory, so it can only be used when there are no obstacles within the planned line.
また、障害物を避けて2次元的な推進を行う工法として
は、例えば、「土木技術+ Vol、39 、No。In addition, as a method of two-dimensional propulsion while avoiding obstacles, for example, "Civil Engineering + Vol. 39, No.
10、第78〜83頁1筒易円弧推進工法」、昭和59
年10月1日、土木技術社発行に記載されたものが知ら
れている。10, pp. 78-83 1-tube easy arc propulsion method, 1982
The one published by Civil Engineering Company on October 1, 2008 is known.
この従来工法は、管きょを地表面から地表面に一定の曲
率あるいは曲率半径で円弧状に推進していくものである
。In this conventional construction method, pipes are moved from ground surface to ground surface in an arc shape with a constant curvature or radius of curvature.
しかしながら、この従来の推進工法にあっては、管きょ
を地表面から地表面へ一定の曲率で円弧状に推進してい
くものであるため、曲率に制限があって大きな曲率の管
きょを推進することが難しいとともに、推進の途中に障
害物があるような場合にはこれを避けて推進することが
できず、スパンの極く短い、特殊な場合にしか採用でき
ないという問題点があった。However, in this conventional propulsion method, the pipe is propelled from ground surface to ground surface in an arc shape with a constant curvature, so there is a limit to the curvature, and pipes with large curvature cannot be moved. It is difficult to propel the vehicle, and if there are obstacles in the way of propulsion, it is impossible to avoid them and propel the vehicle, and the problem is that it can only be used in special cases with extremely short spans. Ta.
この発明は、このような従来の問題点に着目してなされ
たもので、極力大きい曲率(すなわち小さい曲率半径)
を持つ3次元的なルートで小口径の地下管きょあるいは
管路を比較的長いスパンで掘削し敷設することができ、
さらに動作及び構造が簡単で故障発生の恐れが少ないウ
ォータジェット推進工法及びその装置を提供することを
目的とするものである。This invention was made by focusing on such conventional problems, and it is possible to minimize the curvature (i.e., the small radius of curvature).
It is possible to excavate and lay small-diameter underground pipes or conduits over a relatively long span using a three-dimensional route with
Furthermore, it is an object of the present invention to provide a water jet propulsion method and apparatus thereof which are simple in operation and structure and have little risk of failure.
〔問題点を解決するための手段]
そこで、この発明のウォータジェット推進工法は、先導
管の推進方向後方側を構成する固定部に対して、その先
導管の前方側を構成する可動部を揺動自在に取り付け、
その先導管を後方から押してその先導管に推力を与え、
可動部の内部からその可動部の先端に形成した前部噴射
口を経てその可動部の前方外部へ高圧水を噴射して掘削
孔を掘削し、かつ可動部の内部からその可動部の側方に
形成した側部噴射口を経てその可動部の側方外部へ高圧
水を噴射することによりその可動部の方向を制御するも
のである。[Means for Solving the Problems] Therefore, the water jet propulsion method of the present invention involves shaking the movable part forming the front side of the leading pipe with respect to the fixed part forming the rear side of the leading pipe in the propulsion direction. Attaches freely,
Push the leading pipe from behind to give thrust to the leading pipe,
A drilling hole is excavated by injecting high-pressure water from inside the movable part to the front outside of the movable part through a front injection port formed at the tip of the movable part, and from inside the movable part to the side of the movable part. The direction of the movable part is controlled by injecting high-pressure water to the outside of the movable part through a side injection port formed in the movable part.
また、この発明のウォータジェット推進装置は、先導管
の推進方向後方側を構成する固定部に対して、その先導
管の前方側を構成する可動部を揺動自在に取り付け、そ
の先導管を後方側から押す推力手段を配置し、その可動
部の前方に高圧水をその可動部の内部から前方外部へ噴
出する前部噴射口を形成し、かつその可動部の側方に高
圧水をその可動部の内部から側方外部へ噴射する側部噴
射口を形成して構成したものである。In addition, in the water jet propulsion device of the present invention, the movable part forming the front side of the leading pipe is swingably attached to the fixed part forming the rear side of the leading pipe in the propulsion direction. A thrust means for pushing from the side is arranged, a front injection port is formed in front of the movable part for ejecting high-pressure water from the inside of the movable part to the front outside, and the high-pressure water is sprayed to the side of the movable part. It is constructed by forming a side injection port that injects from the inside of the part to the outside laterally.
この発明のウォータジェット推進工法及びその装置によ
れば、先導管を推力手段により後方側から押して先導管
に推力を与えるとともに、先導管の推進方向前方側を構
成する可動部の内部から高圧水を可動部の前部に形成し
た前部噴射口を経て可動部の前方外部へ噴射することに
より掘削孔を掘削し、さらに、可動部の内部から高圧水
を可動部の側部に形成した側部噴射口を経て可動部の側
方外部へ噴射することにより可動部の方向を制御する。According to the water jet propulsion method and device of the present invention, the leading pipe is pushed from the rear side by the thrust means to apply thrust to the leading pipe, and high-pressure water is pumped from inside the movable part that constitutes the front side of the leading pipe in the direction of propulsion. An excavation hole is excavated by injecting water to the front outside of the movable part through a front injection port formed in the front part of the movable part, and a side part in which high-pressure water is formed on the side of the movable part from inside the movable part. The direction of the movable part is controlled by injecting it to the outside of the movable part through the injection port.
以下、この発明の一実施例を図面を参照して説明する。 An embodiment of the present invention will be described below with reference to the drawings.
まず構成を説明する。First, the configuration will be explained.
第2図において、■は先導管、2a及び2bは誘導管で
あり、先導管1と誘導管2aとはフレキシブルジヨイン
ト3aにより連結され、誘導管2aと誘導管2bとはフ
レキシブルジヨイント3bにより連結される。In Fig. 2, ■ is a leading pipe, 2a and 2b are guiding pipes, leading pipe 1 and guiding pipe 2a are connected by a flexible joint 3a, and guiding pipe 2a and guiding pipe 2b are connected by a flexible joint 3b. Concatenated.
フレキシブルジヨイント3a、3bについては後述する
。The flexible joints 3a and 3b will be described later.
4は立坑であり、この立坑4の中において、誘導管2b
の後端と圧力板5との間に油圧ジヤツキ6が配置され、
また、7は高圧水を供給する水路であり、8はすりを排
出する排泥ポンプである。4 is a shaft, and in this shaft 4, the guide pipe 2b
A hydraulic jack 6 is disposed between the rear end and the pressure plate 5,
Further, 7 is a waterway that supplies high-pressure water, and 8 is a sludge pump that discharges the pickpocket.
第1図及び第2図において、先導管1は推進方向(A方
向)の後方側の固定部10と前方側の可動部11とから
構成され、可動部11は固定部10に対してボールジヨ
イント12により、固定部10の軸心に対して所定角度
、例えば15°程度全ての方向に揺動自在に連結され、
さらに、固定部10の中央水路13と可動部11の中央
水路14もボールジヨイント15により揺動自在かつ水
密に連結される。また、誘導管2aの中央水路16と先
導管1の固定部10の中央水路13もポールジョイン1
−17により揺動自在かつ水密に連結される。In FIGS. 1 and 2, the guide pipe 1 is composed of a fixed part 10 on the rear side in the propulsion direction (direction A) and a movable part 11 on the front side. The point 12 is connected to the fixed part 10 so as to be swingable in all directions at a predetermined angle, for example, about 15 degrees, with respect to the axis of the fixed part 10,
Furthermore, the central waterway 13 of the fixed part 10 and the central waterway 14 of the movable part 11 are also connected by a ball joint 15 in a freely swingable and watertight manner. Also, the central waterway 16 of the guiding pipe 2a and the central waterway 13 of the fixed part 10 of the leading pipe 1 are also connected to the pole join 1.
-17, they are swingably and watertightly connected.
これらのボールジヨイント12.15.17の詳細は第
3図に示すが、同図において、一方の中央水路の端部に
固定されたボール19の外周に、パツキン20を介在さ
せてソケット21が回動自在に嵌合され、ソケット21
に形成されたフランジ部21aにシム22を介してリテ
ーナフランジ23が当てがわれ、フランジ部21aとリ
テーナフランジ23とがボルト24とナツト25により
固定されて、各ボールジョイン1−12.15.17が
構成される。The details of these ball joints 12, 15, and 17 are shown in FIG. 3, which shows that a socket 21 is attached to the outer periphery of a ball 19 fixed to the end of one central waterway with a packing 20 interposed. The socket 21 is rotatably fitted and
The retainer flange 23 is applied to the flange portion 21a formed in the shim 22 via the shim 22, and the flange portion 21a and the retainer flange 23 are fixed by bolts 24 and nuts 25, and each ball joint 1-12.15.17 is configured.
第1図及び第2図に戻って、先導管1の可動部11の前
部先端には中央水路14に連通ずる前部先端噴射口27
が形成され、また、円錐状の前側部には同様に中央水路
14に連通ずる前部斜め噴射口28が形成される。そし
て、可動部11の側部には同様に中央水路14に連通ず
る複数の側部噴射口30が形成され、各側部噴射口30
には電磁弁29が介在される。Returning to FIGS. 1 and 2, at the front end of the movable part 11 of the leading pipe 1, there is a front end injection port 27 that communicates with the central waterway 14.
, and a front oblique injection port 28 that communicates with the central waterway 14 is also formed in the conical front side. Similarly, a plurality of side injection ports 30 communicating with the central waterway 14 are formed on the sides of the movable part 11, and each side injection port 30
A solenoid valve 29 is interposed.
また、先導管1の固定部10の内部と可動部11の内部
とはダンパ32及びロッド33により連結される。Further, the inside of the fixed part 10 and the inside of the movable part 11 of the leading pipe 1 are connected by a damper 32 and a rod 33.
このダンパ32は、ロッド33すなわち可動部11の動
きを減衰させるものであり、また、ロッド33ん変位に
より固定部10に対する可動部11の揺動角度を検知す
るセンサが設けられ、さらに、ダンパ32とロッド33
により所定の限界以上の揺動運動が防止される。This damper 32 damps the movement of the rod 33, that is, the movable part 11, and is also provided with a sensor that detects the swing angle of the movable part 11 with respect to the fixed part 10 based on the displacement of the rod 33. and rod 33
This prevents rocking movements beyond a predetermined limit.
第4図は、前述したフレキシブルジヨイント3a、3b
の詳細を示すが、例えば先導管1の固定部10の管端の
内側に固定されたブラケット34と、誘導管2aの管端
の内側に固定されたブラケット35との間にフレキシブ
ルジヨイント3aが張設されて、ボルト36及びナツト
37により固定される。このフレキシブルジヨイント3
aの材質は、例えば、ステンレスプレードにゴムライニ
ングしたもの、あるいは、硬質樹脂等が用いられる。さ
らに、固定部10及び誘導管2aの管端には、それぞれ
クッション材38.39が嵌合される。FIG. 4 shows the flexible joints 3a and 3b mentioned above.
For example, there is a flexible joint 3a between a bracket 34 fixed to the inside of the tube end of the fixed part 10 of the guide tube 1 and a bracket 35 fixed to the inside of the tube end of the guide tube 2a. It is stretched and fixed with bolts 36 and nuts 37. This flexible joint 3
The material for a may be, for example, stainless steel plate lined with rubber, hard resin, or the like. Furthermore, cushioning materials 38 and 39 are fitted to the fixed portion 10 and the tube ends of the guide tube 2a, respectively.
また、可動部11の内部には発信器41が配置され、こ
の発信器41及び電磁弁29、あるいはロッド33によ
る揺動角度センサ等の配線は先導管1及び誘導管2a、
2bの内部を通される。Further, a transmitter 41 is disposed inside the movable part 11, and wiring for the transmitter 41 and the solenoid valve 29, or the swing angle sensor using the rod 33 is connected to the guide tube 1, the guide tube 2a,
It is passed through the inside of 2b.
次に上記実施例の動作を説明する。Next, the operation of the above embodiment will be explained.
第2図を参照して、立坑4において、誘導管2bの後端
を油圧ジヤツキ6で押すと、誘導管2b。Referring to FIG. 2, in the shaft 4, when the rear end of the guide pipe 2b is pushed with the hydraulic jack 6, the guide pipe 2b is released.
2a及び先導管1には軸方向の推力Aが作用する。An axial thrust A acts on 2a and the leading pipe 1.
このとき、フレキシブルジヨイント3a、3bは縮んで
、誘導管2b、2a及び先導管1の管端に嵌合されたク
ッション材38.39が当接して、推力が伝達される。At this time, the flexible joints 3a and 3b contract, and the cushioning materials 38 and 39 fitted to the ends of the guide tubes 2b and 2a and the leading tube 1 come into contact with each other, thereby transmitting thrust.
このように誘導管2b、2a及び先導管1に推力を与え
ながら、コンプレッサ(図示しない)から吐出される高
圧水を、水路7から誘導管2bの中央水路、誘導管2a
の中央水路16及び先導管1の中央水路13及び14に
供給し、可動部11の前部先端噴射口27及び前部斜め
噴射口28から噴出させて、可動部11の前方の地盤を
油圧ジヤツキ6の推力と高圧水の噴射力とにより掘削し
ていく。このとき、電磁弁29を全て閉じておくと、第
5図(alに示すように、先導管1は推力の方向に直進
していく。While applying thrust to the guide pipes 2b, 2a and the leading pipe 1 in this way, high pressure water discharged from the compressor (not shown) is transferred from the water channel 7 to the central water channel of the guide pipe 2b and the guide pipe 2a.
is supplied to the central waterway 16 of the main pipe 1 and the central waterways 13 and 14 of the leading pipe 1, and is ejected from the front tip injection port 27 and the front diagonal injection port 28 of the movable part 11 to hydraulically jack the ground in front of the movable part 11. Excavation is performed using the thrust of No. 6 and the jet power of high-pressure water. At this time, if all the solenoid valves 29 are closed, the leading pipe 1 moves straight in the direction of the thrust, as shown in FIG. 5 (al).
前部先端噴射口27及び前部斜め噴射口28から噴射さ
れた高圧水は、すりの搬送流体としても使用され、スラ
リーとして排出されたすりは、その高圧水により先導管
l及び誘導管2a、2bの外壁に沿って流れ、排泥ポン
プ8により汲み上げられた後、図示しない振動篩−1次
沈澱槽−サイクロン−2次沈澱槽−復水ポンブーコンプ
レッサを経て、高圧水として循環し再使用される。The high-pressure water injected from the front tip injection port 27 and the front oblique injection port 28 is also used as a carrier fluid for the pickpocket, and the pickpocket discharged as slurry is transported by the high-pressure water to the leading pipe 1, the guiding pipe 2a, After flowing along the outer wall of 2b and being pumped up by the sludge pump 8, the water passes through a vibrating sieve (not shown), a primary sedimentation tank, a cyclone, a secondary sedimentation tank, and a condensate pump compressor, where it is circulated as high-pressure water and reused. be done.
次いで、所定の電磁弁29を開くと、開かれた電磁弁2
9を介してこれに連通ずる側部噴射口30から高圧水が
噴射され、第5図(b)に示すように、その噴射力の反
力によって、可動部11が固定部lOに対して揺動し、
可動部11の方向が推力と反力との合力の方向に変わる
。Next, when a predetermined solenoid valve 29 is opened, the opened solenoid valve 2
High-pressure water is injected from the side injection port 30 that communicates with the side injection port 30 through the injection port 9, and as shown in FIG. move,
The direction of the movable part 11 changes to the direction of the resultant force of thrust and reaction force.
このとき、第6図に示すように、固定部10と可動部1
1との揺動運動がダンパ32により減衰され、これによ
り固定部10に対する可動部11の回転運動が阻止され
るとともに、ロッド33の変位により可動部11の揺動
角度、すなわち可動部11の方向が検知される。また、
このダンパ32とロッド33により、所定の限界以上の
揺動運動が防止される。At this time, as shown in FIG. 6, the fixed part 10 and the movable part 1
1 is damped by the damper 32, thereby preventing the rotational movement of the movable part 11 relative to the fixed part 10, and the displacement of the rod 33 changes the swing angle of the movable part 11, that is, the direction of the movable part 11. is detected. Also,
The damper 32 and rod 33 prevent rocking motion exceeding a predetermined limit.
可動部11の方向が変化した状態で、電磁弁29を閉じ
て、油圧ジヤツキ6による推力を与えると、第5図(C
)に示すように、固定部10と可動部11とが直線状態
となるとともに、固定部10と誘導管2aとの間に角度
が付き、フレキシブルジゴイン)−3aが伸縮して固定
部10と誘導管2aの管端のクッション材38.39の
一部が当接して、推力を伝達するようになる。そして、
可動部11は推力と地盤から受ける抗力との合力の方向
に推進していく。With the direction of the movable part 11 changed, when the solenoid valve 29 is closed and thrust is applied by the hydraulic jack 6, as shown in FIG.
), the fixed part 10 and the movable part 11 are in a straight line state, and an angle is formed between the fixed part 10 and the guide tube 2a, and the flexible gigoin (3a) expands and contracts to connect with the fixed part 10. Parts of the cushioning materials 38 and 39 at the ends of the guide tube 2a come into contact with each other, thereby transmitting thrust. and,
The movable part 11 is propelled in the direction of the resultant force of the thrust force and the drag force received from the ground.
このようにして、ロッド33に取り付けられた揺動角度
センサにより先導管1の揺動角度を計測し、かつ発信器
41により先導管lの位置を計測しながら、掘削の開始
側の立坑から終了側の立坑まで、所定の3次元の曲線状
に、あるいは障害物を避けながら、3次元の曲がりくね
った掘削孔を形成していく。そしてその曲がりくねった
掘削孔に対応して、フレキシブルジヨイント3a、3b
により連結された誘導管2a、2bが追従していく。先
導管1が推進するに従って、誘導管2a。In this way, the rocking angle of the leading pipe 1 is measured by the rocking angle sensor attached to the rod 33, and the position of the leading pipe l is measured by the transmitter 41, and the excavation is finished from the shaft on the starting side. A three-dimensional winding borehole is formed up to the side shaft in a predetermined three-dimensional curved shape or while avoiding obstacles. Then, flexible joints 3a and 3b were installed to correspond to the winding drilling hole.
The guide tubes 2a and 2b connected by the guide tubes 2a and 2b follow. As the leading pipe 1 advances, the guiding pipe 2a.
2bの後方側に次々に誘導管を継ぎ足していき、先導管
1が終了側の立坑に出たら、先導管1を誘導管2aから
外して、誘導管2a、2b、・・・、をそのまま掘削孔
に残す。Add guide pipes one after another to the rear side of 2b, and when the guide pipe 1 reaches the end shaft, remove the guide pipe 1 from the guide pipe 2a and excavate the guide pipes 2a, 2b, etc. as they are. Leave it in the hole.
また、先導管による直進掘削力や方向制御、ずリスラリ
−の輸送力等の各種の運転条件が、高圧水の圧力と流量
の調整により簡単に制御される。Further, various operating conditions such as the straight-line digging force and directional control by the guide pipe, and the transporting force of slurry can be easily controlled by adjusting the pressure and flow rate of high-pressure water.
さらに、掘削が終了したら、掘削孔と誘導管23の隙間
にセメントミルクを注入して、地山の圧力に対抗して一
定断面積の管きょあるいは管路の確保を図る。Further, when the excavation is completed, cement milk is injected into the gap between the excavation hole and the guide pipe 23 to counteract the pressure of the ground and ensure a pipe or conduit with a constant cross-sectional area.
以上説明したように、この発明に係わるウォータジェッ
ト推進工法及びその装置によれば、極力大きい曲率(す
なわち小さい曲率半径)を持つ3次元的なルートで、ま
た、地中の障害物を避け、比較的長いスパンで小口径の
管きょあるいは管路を敷設することができ、ある程度以
下の曲率であればいかなるルートでも一定断面積を持つ
管きよが施工でき、さらに、動作及び特に先導管の構造
が簡単で故障発生の恐れが少ないという効果が得られる
。As explained above, according to the water jet propulsion method and its device according to the present invention, a three-dimensional route with as large a curvature as possible (that is, a small radius of curvature), avoiding underground obstacles, and It is possible to lay small-diameter pipes or conduits over long spans, and it is possible to construct pipes with a constant cross-sectional area on any route as long as the curvature is below a certain level. The effect is that it is simple and there is less risk of failure.
第1図はこの発明に係わるウォータジェット推進工法を
実現する装置の一実施例の要部の構成を示す断面図、第
2図はその実施例の全体構成を示す斜視図、第3図はボ
ールジヨイントの詳細を示す拡大断面図、第4図はフレ
キシブルジヨイントの詳細を示す拡大断面図、第5図は
上記実施例の動作を説明するための全体斜視図、第6図
はダンパとロッドの動作を説明するための断面図である
。
1・・・先導管、2a、2b=誘導管、3a、3b・・
・フレキシブルジヨイント、4・・・立坑、5・・・圧
力板、6・・・油圧ジヤツキ、8・・・排泥ポンプ、1
0・・・固定部、11・・・可動部、12,15.17
・・・ボールジヨイント、19・・・ボール、21・・
・ソケット、23・・・リテーナフランジ、27・・・
前部先端噴射口、2゛8・・・前部斜め噴射口、29・
・・電磁弁、30・・・側部噴射口、32・・・ダンパ
、33・・・ロッド、38゜39・・・クッション材、
41・・・発信器。Fig. 1 is a cross-sectional view showing the configuration of essential parts of an embodiment of a device for realizing the water jet propulsion method according to the present invention, Fig. 2 is a perspective view showing the overall structure of the embodiment, and Fig. 3 is a ball FIG. 4 is an enlarged sectional view showing details of the joint, FIG. 4 is an enlarged sectional view showing details of the flexible joint, FIG. 5 is an overall perspective view for explaining the operation of the above embodiment, and FIG. 6 is a damper and rod. FIG. 1... Leading pipe, 2a, 2b = guiding pipe, 3a, 3b...
・Flexible joint, 4... Vertical shaft, 5... Pressure plate, 6... Hydraulic jack, 8... Sludge pump, 1
0... Fixed part, 11... Movable part, 12, 15.17
...Ball joint, 19...Ball, 21...
・Socket, 23... Retainer flange, 27...
Front tip injection port, 2゛8... Front oblique injection port, 29.
... Solenoid valve, 30... Side injection port, 32... Damper, 33... Rod, 38° 39... Cushion material,
41... Transmitter.
Claims (2)
て、該先導管の前方側を構成する可動部を揺動自在に取
り付け、該先導管を後方から押して該先導管に推力を与
え、前記可動部の内部から該可動部の先端に形成した前
部噴射口を経て該可動部の前方外部へ高圧水を噴射して
掘削孔を掘削し、かつ前記可動部の内部から該可動部の
側方に形成した側部噴射口を経て該可動部の側方外部へ
高圧水を噴射することにより該可動部の方向を制御する
ウォータジェット推進工法。(1) A movable part forming the front side of the leading pipe is swingably attached to a fixed part forming the rear side in the direction of propulsion of the leading pipe, and thrust is applied to the leading pipe by pushing the leading pipe from behind. and excavating an excavation hole by injecting high-pressure water from the inside of the movable part to the front outside of the movable part through a front injection port formed at the tip of the movable part, and from the inside of the movable part to the movable part. A water jet propulsion method in which the direction of the movable part is controlled by injecting high-pressure water to the outside of the movable part through a side injection port formed on the side of the movable part.
て、該先導管の前方側を構成する可動部を揺動自在に取
り付け、該先導管を後方側から押す推力手段を配置し、
該可動部の前部に高圧水を該可動部の内部から前方外部
へ噴出する前部噴射口を形成し、かつ該可動部の側部に
高圧水を該可動部の内部から側方外部へ噴射する側部噴
射口を形成して構成したウォータジェット推進装置。(2) A movable part forming the front side of the leading pipe is swingably attached to a fixed part forming the rear side in the direction of propulsion of the leading pipe, and thrust means for pushing the leading pipe from the rear side is arranged. ,
A front injection port is formed in the front part of the movable part for ejecting high-pressure water from the inside of the movable part to the front outside, and in a side part of the movable part, the high-pressure water is jetted from the inside of the movable part to the lateral outside. A water jet propulsion device configured by forming a side injection port.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4460587A JPS63210396A (en) | 1987-02-27 | 1987-02-27 | Method and device for water jet propulsion construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4460587A JPS63210396A (en) | 1987-02-27 | 1987-02-27 | Method and device for water jet propulsion construction |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63210396A true JPS63210396A (en) | 1988-09-01 |
Family
ID=12696078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4460587A Pending JPS63210396A (en) | 1987-02-27 | 1987-02-27 | Method and device for water jet propulsion construction |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63210396A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003074283A (en) * | 2001-09-03 | 2003-03-12 | Chem Grouting Co Ltd | Boring direction controlling method |
CN106468139A (en) * | 2015-08-21 | 2017-03-01 | 中国石油化工股份有限公司 | A kind of waterpower pulse drilling rig and the method for designing of this device |
JP2018044429A (en) * | 2016-09-15 | 2018-03-22 | バウアー マシーネン ゲーエムベーハー | Method to manufacture trench in soil and trench cutter |
-
1987
- 1987-02-27 JP JP4460587A patent/JPS63210396A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003074283A (en) * | 2001-09-03 | 2003-03-12 | Chem Grouting Co Ltd | Boring direction controlling method |
CN106468139A (en) * | 2015-08-21 | 2017-03-01 | 中国石油化工股份有限公司 | A kind of waterpower pulse drilling rig and the method for designing of this device |
JP2018044429A (en) * | 2016-09-15 | 2018-03-22 | バウアー マシーネン ゲーエムベーハー | Method to manufacture trench in soil and trench cutter |
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