JPS6117690A - Drilling of horizontal hole - Google Patents
Drilling of horizontal holeInfo
- Publication number
- JPS6117690A JPS6117690A JP13709484A JP13709484A JPS6117690A JP S6117690 A JPS6117690 A JP S6117690A JP 13709484 A JP13709484 A JP 13709484A JP 13709484 A JP13709484 A JP 13709484A JP S6117690 A JPS6117690 A JP S6117690A
- Authority
- JP
- Japan
- Prior art keywords
- horizontal hole
- hole
- tool
- digging device
- horizontal
- 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.)
- Granted
Links
Landscapes
- 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）
本発明は、地下に埋設されるガス管、水道管等の流体用
管、または電力線、光あるいは電気の信号線等を収容す
る管を施工する横穴、あるいは水を排出する横穴等のよ
うに比較的小径の横穴を掘進する工法に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention is applicable to the construction of underground pipes for fluids such as gas pipes and water pipes, or pipes for accommodating power lines, optical or electric signal lines, etc. This invention relates to a construction method for digging relatively small-diameter horizontal holes, such as horizontal holes for draining water, or horizontal holes for draining water.
（従来の技術）
地中に比較的小径の横穴を掘削する場合、従来は第１Ｏ
図に示すように、地面より掘削した縦穴１に横穴掘進装
置２を入れ、オペレータが縦穴ｌ内に入り、掘削具３を
人手により継足し、横穴掘進装置２を操作しながら掘削
している。(Conventional technology) When excavating a relatively small diameter horizontal hole underground, conventionally the first O
As shown in the figure, a horizontal hole digging device 2 is inserted into a vertical hole 1 excavated from the ground, an operator enters the vertical hole 1, manually adds an excavating tool 3, and excavates while operating the horizontal hole digging device 2.
この従来工法によると、縦穴１はオペレータが入るだけ
の広さが必要であるため、縦穴１の掘削土砂量が多く、
このため、工期、工費および労力の負担が大きい。According to this conventional construction method, the vertical hole 1 needs to be wide enough for the operator to enter, so the amount of excavated soil in the vertical hole 1 is large.
Therefore, the burden of construction period, construction cost, and labor is large.
（発明が解決しようとする問題点）
本発明は、上記の問題点に鑑み、横穴掘進に用する工期
、工費および労力を小さくすることができる横穴掘削工
法を提供しようとするものである。(Problems to be Solved by the Invention) In view of the above-mentioned problems, the present invention seeks to provide a horizontal hole excavation method that can reduce the construction period, construction cost, and labor used for horizontal hole excavation.
（問題点を解決するための手段）
本発明は、縦穴の径より小さい長さの掘削具を装着した
横穴掘進装置を前記縦穴の中に降下させ、これを所定位
置に停止させ、前記横穴掘進装置によって掘削具を駆動
して掘進させ、掘削具の長さに相応する所定長さに掘進
した所で前記横穴掘進装置を地上より操作して掘削具を
横穴掘進装置から離脱し、次いで横穴掘進装置を縦穴上
に引上げ、その状態で前記縦穴の径より小さい長さの接
続用掘削具を横穴掘進装置に装着してこの横穴掘進装置
を前記縦穴内の前記所定位置に降下させ、前記横穴掘進
装置を地上より操作して接続用掘削具を横穴中に残置し
ている掘削具に接続し、これによって横穴を掘進し、以
上の工程を順次繰返して所定の長さの横穴を掘削するこ
とを特徴とする。(Means for solving the problem) The present invention lowers a horizontal hole digging device equipped with a digging tool having a length smaller than the diameter of the vertical hole into the vertical hole, stops it at a predetermined position, and moves the horizontal hole digging device into the vertical hole. The excavator is driven by the device to make the excavation, and when the excavation tool has dug to a predetermined length corresponding to the length of the excavator, the horizontal hole excavation device is operated from the ground to remove the excavation tool from the horizontal hole excavation device, and then the horizontal hole excavation is continued. The device is pulled up above the vertical hole, and in this state, a connecting drilling tool having a length smaller than the diameter of the vertical hole is attached to the horizontal hole excavation device, and the horizontal hole excavation device is lowered to the predetermined position in the vertical hole, and the horizontal hole excavation is continued. The device is operated from the ground to connect the connecting drilling tool to the drilling tool left in the side hole, and this is used to dig the side hole, and the above steps are repeated sequentially to excavate the side hole of a predetermined length. Features.
また本発明は、前述のように横穴を掘削した後、前記横
穴掘進装置を地上より操作して横穴中に残置している掘
削具および接続用掘削具全体を接続用掘削具に相応する
長さだけ引戻し、縦穴側端の接続用掘削具を離脱させ、
この状態で横穴掘進装置を前記縦穴上に引上げて、接続
用掘削具を横穴掘進装置から取外し、次いでこの横穴掘
進装置を前記縦穴内の前記所定位置に降下させ、前記横
穴掘進装置を地上より操作して横穴中に残置している接
続用掘削具を横穴掘進装置に連繋させ、以後前記掘削具
および接続用掘削具全体を引戻す以下の前記工程を繰返
して最後に先端の掘削具までを地上に取り出すことを特
徴とする。In addition, the present invention provides a method in which, after excavating the horizontal hole as described above, the horizontal hole digging device is operated from the ground to remove the entire excavating tool and the connecting drilling tool remaining in the horizontal hole to a length corresponding to the connecting drilling tool. , and remove the connecting drilling tool from the end of the vertical hole.
In this state, the horizontal hole digging device is pulled up above the vertical hole, the connecting drilling tool is removed from the horizontal hole digging device, the horizontal hole digging device is then lowered to the predetermined position in the vertical hole, and the horizontal hole digging device is operated from the ground. Then connect the connecting drilling tool left in the horizontal hole to the horizontal hole digging device, and then repeat the following steps to pull back the entire drilling tool and connecting drilling tool until the tip of the drilling tool is pulled out of the ground. It is characterized by being taken out.
（実施例）
以下本発明の詳細を、第１図に示す実施例により説明す
る。まず、第１図（Ａ）に示すように、縦穴５４の径よ
り小さい掘削具８２Ａを回転チャック装置８３により装
着した回転駆動装置６２を有する横穴掘進装置５７を、
地上からロッド、ワイヤ、チェーン等の支持手段７を介
して矢印ａに示すように縦穴５４の中に降下させ、これ
を縦穴５４の底部に載置して停止させる。(Example) The details of the present invention will be explained below with reference to an example shown in FIG. First, as shown in FIG. 1(A), a horizontal hole excavation device 57 having a rotary drive device 62 equipped with a drilling tool 82A smaller than the diameter of the vertical hole 54 by a rotary chuck device 83 is installed.
It is lowered from the ground into the vertical hole 54 as shown by arrow a through support means 7 such as rods, wires, chains, etc., and is placed on the bottom of the vertical hole 54 and stopped.
次に第１図（Ａ）（Ｂ）に示すように、前記横穴掘進装
置５７の回転駆動装置６２によって掘削具８２Ａを駆動
し、かつ横行装置（図示せず）により回転駆動装置６２
と共に掘削具８２Ａを矢印すに示すように前進させるこ
とにより掘進させ、掘削具８２Ａの長さに相応する所定
長さに掘進した所で前記横穴掘進装置５７の回転チャッ
ク装置８３を地上より操作して掘削具８２Ａを回転チャ
ック装置８３から離脱し、次いで矢印Ｃに示すように回
転駆動装置６２を後退させ、その後矢印ｄに示すように
横穴掘進装置５７を縦穴上に引上げる。Next, as shown in FIGS. 1A and 1B, the excavator 82A is driven by the rotary drive device 62 of the horizontal hole digging device 57, and the rotary drive device 62 is driven by the traverse device (not shown).
At the same time, the excavating tool 82A is moved forward as shown by the arrow mark to make the excavation work, and when the excavation tool 82A has dug to a predetermined length corresponding to the length of the excavating tool 82A, the rotary chuck device 83 of the horizontal hole excavating device 57 is operated from the ground. The excavator 82A is removed from the rotary chuck device 83, and then the rotary drive device 62 is moved backward as shown by arrow C, and then the horizontal hole digging device 57 is pulled up onto the vertical hole as shown by arrow d.
次に第１図（Ｃ）に仮想線ｄに示すように、横穴掘進装
置５７を上昇させた状態で前記縦穴５４の径より小さい
長さの接続用掘削具８２Ｂを横穴掘進装置５７の回転チ
ャック装置８３に装着する。次にこの横穴掘進”装置５
７を矢印ｅに示すように降下させて縦穴５４の底部に降
下させ、前記横穴掘進装置、５７の前部に設置している
固定チャック装置９３を地上より操作して横穴中に残置
している掘削具８２Ａの尾端を該固定チャック装置９３
により把持し、横行装置により回転駆動装置６２を矢印
ｆで示すように前進しながら作動させることにより、掘
削具８２Ａの尾端の雌ねじに接続用掘削具８２Ｂの先端
の雄ねじを螺合することにより接続し、さらに回転駆動
装置６２を前進させながら作動させることによって横穴
を掘進し、第１図（Ｄ）（Ｅ）に示すように以上の工程
を順次繰返して所定の長さの横穴１０２を掘削する。Next, as shown by the imaginary line d in FIG. 1(C), with the horizontal hole digging device 57 raised, the connecting drilling tool 82B having a length smaller than the diameter of the vertical hole 54 is attached to the rotary chuck of the horizontal hole digging device 57. It is attached to the device 83. Next, this horizontal hole digging "device 5"
7 is lowered to the bottom of the vertical hole 54 as shown by arrow e, and the fixed chuck device 93 installed at the front of the horizontal hole digging device 57 is operated from the ground to leave it in the horizontal hole. The tail end of the drilling tool 82A is fixed to the fixing chuck device 93.
By gripping the excavating tool 82B by gripping it, and operating the rotary drive device 62 while moving forward as shown by the arrow f using the traversing device, the male thread at the tip of the connecting excavating tool 82B is screwed into the female thread at the tail end of the excavating tool 82A. The horizontal hole 102 of a predetermined length is excavated by sequentially repeating the above steps as shown in FIGS. 1(D) and (E). do.
掘削具８２Ａ、８２Ｂの引抜きは、横穴ｌｏｔの先端が
上向きになっている場合、あるいは第１図（Ｅ）に示す
ように、横穴１０２の先端が壁ｌＯ３から突出しており
、しかも横穴の総長が短かい場合には先頭掘削具８２Ａ
側から人力によって引抜くことは可能であり、横穴１０
２が長い場合には動力を使用して抜くことはできる。し
かし、穴１０２の先端が閉塞されている等によって先頭
掘削具８２Ａ側から引抜くことができない場合、下記の
ように横穴掘進装置５７を利用して掘削具８２Ｂ 、８
２Ａを引抜くようにする。また、下記のように横穴掘進
装置５７を利用して掘削具８２Ｂ、８２Ａを引抜くよう
にすれば、引抜きのための別設の動力装置が不要となる
。The drilling tools 82A and 82B can be pulled out when the tip of the horizontal hole 102 is facing upward, or when the tip of the horizontal hole 102 protrudes from the wall lO3 and the total length of the horizontal hole is If it is short, use the leading excavator 82A
It is possible to pull it out manually from the side, and the horizontal hole 10
If 2 is long, it can be pulled out using power. However, if the tip of the hole 102 cannot be pulled out from the front drilling tool 82A side because it is blocked or the like, the horizontal hole digging device 57 is used as described below to remove the drilling tools 82B, 8.
Make sure to pull out 2A. Moreover, if the excavating tools 82B and 82A are pulled out using the horizontal hole digging device 57 as described below, a separate power device for pulling them out becomes unnecessary.
この掘削具８２Ｂ、８２Ａの引抜きにつき、第１図（Ｅ
）ＣＦ）ＣＧ）により説明する。地上からの操作により
、前記横穴掘進装置５７の回転駆動装置６２を掘削時と
同じ方向に作動させ、かつ横行装置により第１図（Ｅ）
の矢印ｇに示すように後退させ、横穴中に残置している
掘削具８２Ａおよび接続用掘削具８２Ｂ全体を接続用掘
削具８２Ｂに相応する長さだけ引戻す。次に、第１図（
Ｆ）に示すように、回転チャック装置８３に装着されて
いる接続用掘削具８２Ｂの先端に接続されている接続用
掘削具８２Ｂ′の尾端部を固定チャック装置９３により
把持し１回転駆動装置６２を掘削時と反対方向に作動さ
せ、かつ横行装置により第１図ＣＦ）の矢印りに示すよ
うに後退させることにより、回転チャック装置８３に把
持されている縦穴側端の接続用掘削具８２Ｂを離脱させ
、その後固定チャック装置９３による接続用掘削具８２
Ｂ′の把持を解き、この状態で横穴掘進装置５７を前記
縦穴５４上に仮想線ｉに示すように引上げて、接続用掘
削具８２Ｂを回転チャック装置８３から取外す。When removing the excavating tools 82B and 82A, see Figure 1 (E
)CF)CG). By operation from the ground, the rotary drive device 62 of the lateral hole excavation device 57 is operated in the same direction as when excavating, and the traversing device is used to operate the rotary drive device 62 of the lateral hole excavation device 57 as shown in Fig. 1 (E).
The excavator 82A and the connecting excavator 82B remaining in the side hole are all pulled back by a length corresponding to the connecting excavator 82B. Next, Figure 1 (
As shown in F), the fixed chuck device 93 grips the tail end of the connection drilling tool 82B' connected to the tip of the connection drilling tool 82B mounted on the rotary chuck device 83, and the one-rotation drive device 62 in the opposite direction to that during excavation, and the traversing device moves it backward as shown by the arrow in FIG. After that, the connection drilling tool 82 is removed by the fixed chuck device 93.
B' is released from the grip, and in this state, the horizontal hole digging device 57 is pulled up onto the vertical hole 54 as shown by the imaginary line i, and the connecting digging tool 82B is removed from the rotary chuck device 83.
次いでこの前記横穴掘進装置５７を前記縦穴５４の底部
に降下させ、横行装置により回転駆動装置６２を前進さ
せ、横穴１０２から縦穴５４中に突出している接続用掘
削具８２Ｂ′の尾端を回転チャック装置８３により把持
し、前記同様に掘削具および接続用掘削具全体を引戻す
。Next, the horizontal hole digging device 57 is lowered to the bottom of the vertical hole 54, the rotary drive device 62 is advanced by the traverse device, and the tail end of the connecting drilling tool 82B' protruding from the horizontal hole 102 into the vertical hole 54 is placed in a rotary chuck. It is gripped by the device 83 and the entire excavating implement and connecting excavating implement are pulled back in the same manner as described above.
以下前記工程を繰返し、最後に第１図（Ｇ）に示すよう
に先端の掘削具８２Ａまでを地上に取り出す。Thereafter, the above steps are repeated, and finally, as shown in FIG. 1(G), the excavating tool 82A at the tip is taken out to the ground.
横穴掘進を管を地中に埋設するために行なう場合には、
上述のようにして掘削具８２Ｂ、８２Ａの引抜きを行な
う際、第１図（Ｅ）に示すように、先端の掘削具８２Ａ
の先端に施工すべき可撓性を有する管ｌｏｔを嵌合し固
定すれば、掘削具８２Ｂ、８２Ａの引抜きと同時に、（
Ｆ）（Ｇ）で示すように、掘進した横穴１０２に対して
管１０１を挿通することができる。When digging a horizontal hole to bury a pipe underground,
When pulling out the excavating tools 82B and 82A as described above, as shown in FIG. 1(E), the tip of the excavating tool 82A
If a flexible pipe lot to be constructed is fitted and fixed at the tip of the (
F) As shown in (G), the pipe 101 can be inserted into the horizontal hole 102 that has been dug.
第２図および第３図は本発明の工法を実施する場合に用
いる機械の一例を示すもので、アウトリカーｌＯを有す
る走行車９上には、旋回輪１１を介して旋回体１２が設
置され、該旋回体１２には先端に水平の筒体１４を有す
る支持アーム１５が取付けてあり、筒体１４内には、水
平アーム１６が摺動自在に嵌合され、該水平アーム１６
は、その先端に固着したブラケット１９と筒体１４にそ
れぞれピン２３．２４により取付けた油圧シリンダ１７
により、矢印１８方向に摺動させられるように構成され
ている。FIGS. 2 and 3 show an example of a machine used when implementing the construction method of the present invention, in which a rotating body 12 is installed via a rotating wheel 11 on a traveling vehicle 9 having an outliquor lO. A support arm 15 having a horizontal cylindrical body 14 at its tip is attached to the revolving body 12, and a horizontal arm 16 is slidably fitted into the cylindrical body 14.
is a hydraulic cylinder 17 attached to a bracket 19 fixed to its tip and a cylinder 14 by pins 23 and 24, respectively.
, so that it can be slid in the direction of arrow 18.
前記ブラケット１９の上端部には断面矩形の筒体２２が
ビン２０を中心として矢印２１で示すように少なくとも
地面に垂直な姿勢から平行をなす姿勢までとることがで
きるように傾動自在に取付けられ、該筒体２２どブラケ
ッ）１９の下端部に両端をピン２５．２６により連結し
て取付けた油圧シリンダ２７によって該筒体２２の傾き
が設定できるようになっている。該筒体２２内には断面
矩形の外筒２８が、該外筒２８と該筒体２２にそれぞれ
ピン２９．３０により取付けた油圧シリンダ３１により
摺動させられるように嵌合され、該外筒２８内には断面
矩形の内筒３２が、該内筒３２の下端と外筒２８の上端
にそれぞれピン３３゜３４により両端を連結して取付け
た油圧シリンダ３５により伸縮されるように挿入されて
いる。A cylindrical body 22 having a rectangular cross section is attached to the upper end of the bracket 19 so as to be tiltable so as to be able to take at least a posture from perpendicular to the ground to parallel to the ground as shown by an arrow 21 with the bottle 20 as the center; The inclination of the cylindrical body 22 can be set by a hydraulic cylinder 27 attached to the lower end of the cylindrical body 22 (bracket) 19 with both ends connected by pins 25 and 26. An outer cylinder 28 having a rectangular cross section is fitted into the cylinder 22 so as to be slid by a hydraulic cylinder 31 attached to the outer cylinder 28 and the cylinder 22 by pins 29 and 30, respectively. An inner cylinder 32 having a rectangular cross section is inserted into the inner cylinder 28 so as to be expanded and contracted by a hydraulic cylinder 35 which is attached to the lower end of the inner cylinder 32 and the upper end of the outer cylinder 28 by connecting both ends with pins 33 and 34, respectively. There is.
油圧シリンダ１７．３１．３５や旋回輪１１の駆動装置
の油圧源は走行車９上に搭載される油圧ボン４プであり
、またこれらの操作装置は縦穴５４の近傍に据置かれれ
るが、これらの図示は省略している。The hydraulic pressure source for the hydraulic cylinders 17, 31, 35 and the driving device for the swing wheel 11 is a hydraulic cylinder 4 mounted on the traveling vehicle 9, and the operating devices for these are installed near the vertical hole 54. illustration is omitted.
該内筒３２の下端には横穴掘進装置５７を取付けるため
の取付はフランジ３６と自在継手６０が・取付けてあり
、縦穴５４に底板４６ｂを有するケーシング４６を押し
込め、その上に継足し用ケーシング４７を押し込めてい
る例を示す、なおケーシング４６．４７の内壁には、横
穴掘進装置５７をガイドする２条のガイドレール５３（
第６図参照）が対抗する位置に縦向きに設けである。A flange 36 and a universal joint 60 are attached to the lower end of the inner cylinder 32 for attaching a horizontal hole digging device 57, and a casing 46 having a bottom plate 46b is pushed into the vertical hole 54, and an additional casing 47 is placed on top of the casing 46 having a bottom plate 46b. The inner wall of the casing 46 and 47 has two guide rails 53 (
(see Fig. 6) are provided vertically at opposing positions.
この装置を用いる場合は、油圧シリンダ１７の伸縮によ
り横穴掘進装置５７が縦穴５４の中心に位置するように
設定し、油圧シリンダ３１．３５を伸縮させて横穴掘進
装置の昇降を行なわせる。When this device is used, the horizontal hole digging device 57 is set to be located at the center of the vertical hole 54 by expanding and contracting the hydraulic cylinder 17, and the horizontal hole digging device 57 is moved up and down by expanding and contracting the hydraulic cylinders 31 and 35.
ここで、昇降手段としては巻上げウィンチやケーシング
４６．４７内を自刃で昇降するラック、ピニオン方式を
用いることもできる。Here, as the elevating means, it is also possible to use a hoisting winch or a rack and pinion system in which the inside of the casing 46, 47 is raised and lowered using a self-blade.
横穴掘進装置５７としては、−例として第４図ないし第
６図に示す構成のものを用いることができる。すなわち
、横穴掘進装置５７はほぼ門形をなすフレーム５９を有
し、該フレーム５９は、前記フランジ結合部３６と自在
継手６０を介して前記内筒３２かう垂下され、該フレー
ムの上下左右に前記対をなすガイドレール５３に沿って
転動するガイドローラ６１を取付け、該フレーム５９に
は掘削具の回転駆動装置６２を横行自在に搭載するガイ
ドフレーム６３が、前記ガイドレール５３．５３どうし
の対向方向に対して直角をなす方向（掘削具挿通用開口
部４６ａ）に向けて、取付はピン６４により取付けてあ
り、該ガイドフレームにはその長手方向に対をなすガイ
ドレール６５．６５が固設され、回転駆動装置６２の下
面の４隅に取付けたガイドローラ６６の外周に設けた溝
をガイドレール６５に嵌合することにより、回転駆動装
置６２が該ガイドレール６５によって位置決めされかつ
移動可能となっている。As the horizontal hole digging device 57, for example, one having the configuration shown in FIGS. 4 to 6 can be used. That is, the horizontal hole excavation device 57 has a frame 59 that is substantially gate-shaped. A guide roller 61 that rolls along a pair of guide rails 53 is attached, and a guide frame 63 on which a rotary drive device 62 for an excavation tool is mounted so as to be able to move laterally is mounted on the frame 59, and a guide roller 61 that rolls along a pair of guide rails 53 is mounted on the frame 59. The guide frame is mounted with a pin 64 in a direction perpendicular to the direction (the opening 46a for inserting the excavating tool), and a pair of guide rails 65 and 65 are fixed to the guide frame in the longitudinal direction. By fitting grooves provided on the outer periphery of guide rollers 66 attached to the four corners of the lower surface of the rotary drive device 62 into the guide rail 65, the rotary drive device 62 is positioned and movable by the guide rail 65. It has become.
また回転駆動装置６２を進退させる横行装置は下記のよ
うに構成される。すなわち、前記ガイドフレーム６３の
一部は延出してその延出部６３ａには前記回転駆動装置
６２を移動させるための油圧モータ６７を設置し、該油
圧モータ６７により回転されるスプロケット６８と、該
延出部６３ａの両端に取付けたスプロケット６９．７０
に掛けたチェーン７１を前記回転駆動装置６２の側部に
設けた接続部７２に接線し、油圧モータ６７を作動させ
ることにより、回転駆動装置６２がガイドレール６５に
沿って進退するようになっている。Further, the traverse device for moving the rotary drive device 62 forward and backward is configured as follows. That is, a part of the guide frame 63 extends, and a hydraulic motor 67 for moving the rotary drive device 62 is installed on the extending portion 63a, and a sprocket 68 rotated by the hydraulic motor 67 and a sprocket 68 rotated by the hydraulic motor 67 Sprockets 69.70 attached to both ends of the extension part 63a
The rotary drive device 62 moves forward and backward along the guide rail 65 by tangentially connecting the chain 71 hung on the rotary drive device 62 to a connecting portion 72 provided on the side of the rotary drive device 62 and operating the hydraulic motor 67. There is.
また、前記回転駆動装置６２と回転チャック装置９３は
、第７図に示すように構成される。すなわち、本体７３
の上部に掘削具回転用油圧モータ７４をポルト７８によ
り固定し、また、本体７３に軸受７７を介して回転体７
９を回転自在に取付け、該油圧モータ７４の出力軸７５
に取付けた傘歯車７６と前記回転体７９にポルト８０に
より取付けた傘歯車８１とを噛合させ、回転体７９には
掘削具（８２Ａは先端を尖鋭に形成した先頭掘削具、８
２Ｂは接続用掘削具である）の接続部８２ａを掴む回転
チャック装置８３を取付けている。Further, the rotary drive device 62 and the rotary chuck device 93 are configured as shown in FIG. 7. That is, the main body 73
A hydraulic motor 74 for rotating an excavator is fixed to the upper part of the excavator by a port 78, and a rotary body 7 is connected to the main body 73 via a bearing 77.
9 is rotatably attached to the output shaft 75 of the hydraulic motor 74.
The bevel gear 76 attached to the rotating body 79 is meshed with the bevel gear 81 attached to the rotating body 79 by a port 80, and the rotating body 79 is equipped with an excavating tool (82A is a leading excavating tool with a sharp tip;
A rotary chuck device 83 is attached to grip the connecting portion 82a of the connecting excavator 2B.
該回転チャック装置８３は、複数個の把持用爪８３Ａに
、回転体７９に放射状に形成した払底溝７９ａに摺動可
能に嵌まる摺動部８３ａを形成することにより、矢印８
４の方向（回転体７９の回転中心に対して直角をなす方
向）に移動自在に取付けである。The rotary chuck device 83 has a plurality of gripping claws 83A formed with sliding portions 83a that are slidably fitted into bottoming grooves 79a formed radially in the rotating body 79, so that the gripping claws 83A are arranged in the direction indicated by the arrow 8.
4 (direction perpendicular to the center of rotation of the rotating body 79).
該回転チャック装置８３の締緩装置は、前記回転体７９
と一体化され、出入孔８８．８９を介して作動油の供給
、排出を行なう油圧シリンダ８７と、該シリンダ８７の
ピストン９０に連結され、回転体７９の筒状部７９ｂに
移動可能に貫通したロッド９１と、該ロッド９１の先端
に取付けられた円錐形の締付具９２とからなり、該締付
具９２は、前記掘削具８２Ａ、８２Ｂの接続部８２ａの
嵌め込み穴９２ａと、前記各把持用爪８３Ａ対応に外周
の傾斜面に傾斜方向に沿って設けられた拡底溝９２ｂと
を有し、各把持用爪８３Ａには該溝９２ｂに摺動可能に
嵌まる摺動部８３ｂを設け、前記シリンダ８７のロッド
室に出入孔８８から作動油を供給すればピストン９０、
ロッド９１および締付具９２が矢印８５で示すように移
動し、拡底溝９２ｂと摺動部８３ｂとの係合により把持
用爪８３Ａが矢印８４の方向に縮むことにより、締付具
９２の嵌め込み穴９２ａに保持された掘削具８２Ａ、８
２Ｂ％蔗続部８２ａを締付は固定するように構成され、
この状態で油圧モータ７４を作動させると、回転体７９
はシリンダ８７や回転チャック装置８３と共に回転して
掘削具８２を掘削方向に回転させることができるように
なっている。また、出入孔８９から作動油をシリンダ８
７のボトム室に供給すれば前記とは反対の動きにより、
掘削具８２Ａ、８２Ｂを取外すことができるようになっ
ている。The tightening/loosening device of the rotary chuck device 83 is connected to the rotating body 79.
A hydraulic cylinder 87 is integrated with the hydraulic cylinder 87 and supplies and discharges hydraulic oil through inlet/outlet holes 88 and 89, and a hydraulic cylinder 87 is connected to a piston 90 of the cylinder 87 and movably penetrates the cylindrical portion 79b of the rotating body 79. It consists of a rod 91 and a conical fastener 92 attached to the tip of the rod 91. It has an enlarged bottom groove 92b provided along the inclination direction on the inclined surface of the outer periphery corresponding to the gripping claw 83A, and each gripping claw 83A is provided with a sliding portion 83b that is slidably fitted into the groove 92b. If hydraulic oil is supplied to the rod chamber of the cylinder 87 from the inlet/outlet hole 88, the piston 90,
The rod 91 and the fastener 92 move as shown by the arrow 85, and the gripping claws 83A contract in the direction of the arrow 84 due to the engagement between the enlarged bottom groove 92b and the sliding portion 83b, so that the fastener 92 is fitted. Drilling tools 82A, 8 held in hole 92a
The 2B% tube connection portion 82a is configured to be tightened and fixed,
When the hydraulic motor 74 is operated in this state, the rotating body 79
rotates together with the cylinder 87 and the rotary chuck device 83 to rotate the excavating tool 82 in the excavation direction. In addition, the hydraulic oil is supplied to the cylinder 8 from the inlet/outlet hole 89.
If it is supplied to the bottom chamber of No. 7, by the opposite movement to the above,
Excavation tools 82A and 82B can be removed.
また、前記ガイドフレーム６３の端部には掘削具継足し
のための固定チャック装置９３が設置され、該装置９３
は、第８図および第９図に示すように、ガイドフレーム
６３上に固定される門形のフレーム９４と、該フレーム
９４の内側に設けたガイド９５．９５に沿ってフレーム
９４の上部に取付けた油圧シリンダ９６により上下動可
能に装着された可動枠９７と、該可動枠９７の下端部の
左右にビン９８．９８を中心として回動自在に、かつ可
動枠９７に取付けた油圧シリンダ９９によりｒＭＩ閉さ
れるように取付番すられたｍ削具把持用爪１００．１０
０とからなる。Further, a fixed chuck device 93 for adding an excavator is installed at the end of the guide frame 63.
As shown in FIGS. 8 and 9, a gate-shaped frame 94 is fixed on the guide frame 63, and the frame is attached to the upper part of the frame 94 along guides 95 and 95 provided inside the frame 94. A movable frame 97 is mounted so as to be movable up and down by a hydraulic cylinder 96, and a hydraulic cylinder 99 is attached to the movable frame 97 so as to be rotatable to the left and right at the lower end of the movable frame 97 about a bin 98.98. m Cutting tool gripping claw 100.10 with mounting number smoothed so that rMI is closed
Consists of 0.
第５図ないし第９図に示した油圧モータ７４．６７およ
び油圧シリンダ８７．９６．９９はその各油圧ホースを
地上の操作装置を介して走行車９に搭載した油圧源ある
いは独立の油圧源に接続することトより、地上の操作装
置による作動制御が可能である。なお、駆動装置として
は、油圧装置以外に電気モータ等を用いることができる
。The hydraulic motors 74, 67 and hydraulic cylinders 87, 96, 99 shown in FIGS. 5 to 9 connect their respective hydraulic hoses to a hydraulic source mounted on the traveling vehicle 9 or to an independent hydraulic source via a ground operating device. By connecting, the operation can be controlled by a ground-based operating device. Note that as the drive device, an electric motor or the like can be used in addition to the hydraulic device.
本実施例においては、ケーシング４６．４７を用い、か
つケーシング４６の下部にストッパ８６を設けて横穴掘
進装置５７の位置を規制しているが、このストッパ８６
の位置を調節できるようにし、掘削具挿通用開口部４６
ａをケーシング４６．４７の全長にわたって設けておけ
ば、任意の高さに横穴を掘進することができる。In this embodiment, casings 46 and 47 are used, and a stopper 86 is provided at the bottom of the casing 46 to regulate the position of the horizontal hole digging device 57.
The position of the opening 46 for inserting the excavating tool can be adjusted.
If a is provided over the entire length of the casing 46, 47, a horizontal hole can be dug at an arbitrary height.
このような横穴掘進を行なえば、地表面から既設管に至
る縦穴５４を従来より小さい断面積の穴とすることがで
きる（例えば縦穴を丸穴としてその直径を５０ｃ＋ａの
場合、１ｍ程度の直径を有する従来の縦穴に比較して断
面積は約％程度となる）。By digging such a horizontal hole, the vertical hole 54 from the ground surface to the existing pipe can be made into a hole with a smaller cross-sectional area than before (for example, if the vertical hole is round and its diameter is 50c+a, the diameter of about 1m can be made into a hole with a diameter of about 1m). (The cross-sectional area is approximately % that of a conventional vertical hole).
本発明を実施する場合、地面から所定の深さに掘削する
縦穴５４は必ずしも円形である必要はなく、正方形や長
方形等の四角形あるいは他の多角形等であってもよい。When carrying out the present invention, the vertical hole 54 to be excavated to a predetermined depth from the ground does not necessarily have to be circular, but may be square, rectangular, or other polygonal shape.
縦穴５４の断面積を大とした場合、掘削される土砂の量
は断面積に比例して増加し、かつ、道路の損傷度合が大
となるという不具合はあるが、一方１本の掘削具８２Ａ
、８２Ｂで掘進できる長さが長くなるという利点はある
。このような点および仮復旧を必要としない程度の縦穴
の大きさであることを条件として考慮した場合、円形の
縦穴では、７０ｃ＋ｓ以下の直径で、４０ｃｍ以上の直
径であることが好ましく（より好ましくは４５〜６０ｃ
ｍ程度で人が縦穴の中で腰を曲げて作業することができ
ないような大きさである）、縦穴を多角形の断面形状に
した場合にも前後左右の縦穴の寸法も前記円形の場合に
準するが、掘削具進退方向の寸法を例えば前記７０ｃ腸
よりも大とし、掘削具進退方向に対して直角をなす方向
の寸法を前記４０ｃｍよりも小とする等の形状を採用す
ることによって、掘削具進退方向を大とし、縦穴の断面
積を小さくすることもできる。また、横穴１０２は傾斜
を有するものであってもよい。さらに、接続用掘削具８
２Ｂは前後に接続用の雌雄ねじを有する中実または中空
のロッドであってもよい。If the cross-sectional area of the vertical hole 54 is increased, the amount of earth and sand to be excavated will increase in proportion to the cross-sectional area, and the degree of damage to the road will increase.
, 82B has the advantage that the length that can be excavated becomes longer. Considering these points and the condition that the size of the vertical hole is such that temporary restoration is not required, for a circular vertical hole, the diameter is preferably 70c+s or less, and preferably 40cm or more (more preferably). is 45~60c
(about 1.5 ft. in size, making it impossible for a person to bend at the waist to work in the vertical hole), and even if the vertical hole has a polygonal cross-sectional shape, the dimensions of the vertical hole in the front, rear, left, and right directions are also circular. However, by adopting a shape such that the dimension in the direction of advance and retreat of the excavator is larger than the 70cm length, and the dimension in the direction perpendicular to the direction of advance and retreat of the excavator is smaller than 40cm, It is also possible to increase the direction of advance and retreat of the excavator and reduce the cross-sectional area of the vertical hole. Moreover, the horizontal hole 102 may have an inclination. Furthermore, the connection drilling tool 8
2B may be a solid or hollow rod with female and male threads for connection at the front and rear.
（発明の効果）
本発明によれば、地面から所定の深さに掘削する縦穴を
、横穴掘進装置が昇降できる程度の従来より小さい断面
積の穴とすることができ、掘削する土砂の体積が極めて
小さくなり、労力、工費および工期が著るしく軽減され
る。また、縦穴の断面積を小さくすることができるから
、交通上の制約を軽減することができる。また、本発明
によれば、人が縦穴内に入る必要がないから、安全であ
る。(Effects of the Invention) According to the present invention, a vertical hole to be excavated to a predetermined depth from the ground can be made into a hole with a smaller cross-sectional area than the conventional one, to the extent that a horizontal hole excavation device can move up and down, and the volume of excavated earth and sand can be reduced. It becomes extremely small, and labor, construction cost, and construction period are significantly reduced. Furthermore, since the cross-sectional area of the vertical hole can be reduced, traffic restrictions can be alleviated. Further, according to the present invention, it is safe because there is no need for people to enter the vertical hole.
また、本発明においては、横穴掘進装置を用い、地上か
らの操作により掘削具の離脱、引上げを行なうので、継
足し後の総長が長い掘削具を引抜く場合にも、別設の作
業機械を必要としない。In addition, in the present invention, since the horizontal hole digging device is used to detach and pull up the excavating tool from the ground, a separate working machine is required even when pulling out a long excavating tool after addition. do not need.
また、掘削具の引抜きと同時に管の横穴への挿通を行な
うこともできる。Furthermore, the pipe can be inserted into the side hole at the same time as the excavation tool is pulled out.
第１図（Ａ）〜（Ｇ）は本発明の横穴掘進方法の一実施
例を説明する作業情況図、第２図は本発明の方法を実施
する場合の機械の一例を示す平面図、第３図はその側面
図、第４図は本発明の方法を実施する場合に用いる横穴
掘進装置の一例を示す側面断面図、第５図は第４図のＢ
−Ｂ断面図、第６図は第５図のＣ−Ｃ断面図、第７図は
本発明の方法を実施する場合に用いる回転駆動装置の一
例を示す側面断面図、第８図および第９図は前記横穴掘
進装置に取付けた固定チャック装置をそれぞれ掘削具把
持状態、掘削具解放状態にて示す正面図、第１０図は従
来の横穴掘進方法を説明する断面図である。
５４・・・縦穴、５７・・・横穴掘進装置、８２Ａ 、
８２Ｂ・・・掘削具、１０２・・・横穴
特許出願人 東京瓦斯株式会社外１名
代理人 弁理士 秋本正実外１名
第２図
第４図
第７図
第８図
第１０図Figures 1 (A) to (G) are work situation diagrams illustrating an embodiment of the horizontal hole digging method of the present invention, Figure 2 is a plan view showing an example of a machine for carrying out the method of the present invention, 3 is a side view thereof, FIG. 4 is a side sectional view showing an example of a horizontal hole excavation device used when implementing the method of the present invention, and FIG. 5 is a side view of B in FIG. 4.
-B sectional view, FIG. 6 is a CC sectional view in FIG. The figure is a front view showing the fixed chuck device attached to the horizontal hole excavation device in a state in which the excavator is gripped and in a state in which the excavator is released, respectively, and FIG. 10 is a sectional view illustrating a conventional method for excavating a horizontal hole. 54...Vertical hole, 57...Horizontal hole digging device, 82A,
82B...Drilling tool, 102...Horizontal hole patent applicant Tokyo Gas Co., Ltd. and one other agent Patent attorney Masami Akimoto and one other person Figure 2 Figure 4 Figure 7 Figure 8 Figure 10
Claims (1)
進装置を前記縦穴の中に降下させ、これを所定位置に停
止させ、前記横穴掘進装置によって掘削具を駆動して掘
進させ、掘削具の長さに相応する所定長さに掘進した所
で前記横穴掘進装置を地上より操作して掘削具を横穴掘
進装置から離脱し、次いで横穴掘進装置を縦穴上に引上
げ、その状態で前記縦穴の径より小さい長さの接続用掘
削具を横穴掘進装置に装着してこの横穴掘進装置を前記
縦穴内の前記所定位置に降下させ、前記横穴掘進装置を
地上より操作して接続用掘削具を横穴中に残置している
掘削具に接続し、これによって横穴を掘進し、以上の工
程を順次繰返して所定の長さの横穴を掘削する横穴掘削
工法。 ２、縦穴の径より小さい長さの掘削具を装着した横穴掘
進装置を前記縦穴の中に降下させ、これを所定位置に停
止させ、前記横穴掘進装置によって掘削具を駆動して掘
進させ、掘削具の長さに相応する所定長さに掘進した所
で前記横穴掘進装置を地上より操作して掘削具を横穴掘
進装置から離脱し、次いで横穴掘進装置を縦穴上に引上
げ、その状態で前記縦穴の径より小さい長さの接続用掘
削具を横穴掘進装置に装着してこの横穴掘進装置を前記
縦穴内の前記所定位置に降下させ、前記横穴掘進装置を
地上より操作して接続用掘削具を横穴中に残置している
掘削具に接続し、これによって横穴を掘進し、以上の工
程を順次繰返して所定の長さの横穴を掘削した後、前記
横穴掘進装置を地上より操作して横穴中に残置している
掘削具および接続用掘削具全体を接続用掘削具に相応す
る長さだけ引戻し、縦穴側端の接続用掘削具を離脱させ
、この状態で横穴掘進装置を前記縦穴上に引上げて、接
続用掘削具を横穴掘進装置から取外し、次いでこの横穴
掘進装置を前記縦穴内の前記所定位置に降下させ、前記
横穴掘進装置を地上より操作して横穴中に残置している
接続用掘削具を横穴掘進装置に連繋させ、以後前記掘削
具および接続用掘削具全体を引戻す以下の前記工程を繰
返して最後に先端の掘削具までを地上に取り出す横穴掘
削工法。[Claims] 1. A horizontal hole digging device equipped with a digging tool having a length smaller than the diameter of the vertical hole is lowered into the vertical hole, stopped at a predetermined position, and the digging tool is driven by the horizontal hole digging device. When the horizontal hole digging device has been excavated to a predetermined length corresponding to the length of the digging tool, the horizontal hole digging device is operated from the ground to remove the drilling tool from the horizontal hole digging device, and then the horizontal hole digging device is pulled up above the vertical hole. In this state, a connecting drilling tool having a length smaller than the diameter of the vertical hole is attached to the horizontal hole digging device, the horizontal hole digging device is lowered to the predetermined position in the vertical hole, and the horizontal hole digging device is operated from the ground. A horizontal hole excavation method in which a connecting drilling tool is connected to the excavating tool left in the horizontal hole, the horizontal hole is dug using this, and the above steps are sequentially repeated to excavate a horizontal hole of a predetermined length. 2. A horizontal hole digging device equipped with a digging tool having a length smaller than the diameter of the vertical hole is lowered into the vertical hole, it is stopped at a predetermined position, and the horizontal hole digging device is driven to drive the digging tool to excavate. After digging to a predetermined length corresponding to the length of the tool, the horizontal hole digging device is operated from the ground to remove the digging tool from the horizontal hole digging device, and then the horizontal hole digging device is pulled up above the vertical hole, and in this state, the horizontal hole digging device is removed from the horizontal hole digging device. A connecting drilling tool having a length smaller than the diameter of the horizontal hole digging device is attached to the horizontal hole digging device, the horizontal hole digging device is lowered to the predetermined position in the vertical hole, and the connecting drilling tool is operated by operating the horizontal hole digging device from the ground. Connect to the excavation tool left in the side hole, use this to dig the side hole, repeat the above steps in order to excavate the side hole of a predetermined length, and then operate the side hole digging device from the ground to dig into the side hole. Pull back the entire excavating tool and the connecting drilling tool remaining in the hole by a length corresponding to the connecting drilling tool, detach the connecting drilling tool from the end of the vertical hole, and in this state pull the horizontal hole drilling device above the vertical hole. Then, the connecting drilling tool is removed from the horizontal hole digging device, and then the horizontal hole digging device is lowered to the predetermined position in the vertical hole, and the connecting drilling tool remaining in the horizontal hole is removed by operating the horizontal hole digging device from the ground. A horizontal hole excavation method in which a tool is connected to a horizontal hole excavation device, and the following steps of pulling back the entire excavating tool and connecting excavating tool are repeated, and finally, the tip of the excavating tool is taken out above ground.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13709484A JPS6117690A (en) | 1984-07-04 | 1984-07-04 | Drilling of horizontal hole |
| US06/751,735 US4691788A (en) | 1984-07-04 | 1985-07-03 | Lateral hole boring method and apparatus |
| EP85108240A EP0167979B1 (en) | 1984-07-04 | 1985-07-03 | Lateral hole boring method and apparatus |
| DE8585108240T DE3568818D1 (en) | 1984-07-04 | 1985-07-03 | Lateral hole boring method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13709484A JPS6117690A (en) | 1984-07-04 | 1984-07-04 | Drilling of horizontal hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6117690A true JPS6117690A (en) | 1986-01-25 |
| JPH0362877B2 JPH0362877B2 (en) | 1991-09-27 |
Family
ID=15190731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13709484A Granted JPS6117690A (en) | 1984-07-04 | 1984-07-04 | Drilling of horizontal hole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6117690A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437411A (en) * | 1977-08-29 | 1979-03-19 | Nippon Telegr & Teleph Corp <Ntt> | Digital echo supressor |
-
1984
- 1984-07-04 JP JP13709484A patent/JPS6117690A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437411A (en) * | 1977-08-29 | 1979-03-19 | Nippon Telegr & Teleph Corp <Ntt> | Digital echo supressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0362877B2 (en) | 1991-09-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |