JPH0227036Y2 - - Google Patents
Info
- Publication number
- JPH0227036Y2 JPH0227036Y2 JP20441283U JP20441283U JPH0227036Y2 JP H0227036 Y2 JPH0227036 Y2 JP H0227036Y2 JP 20441283 U JP20441283 U JP 20441283U JP 20441283 U JP20441283 U JP 20441283U JP H0227036 Y2 JPH0227036 Y2 JP H0227036Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tip
- substrate
- casing
- auger screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000000758 substrate Substances 0.000 claims description 25
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 description 5
- 239000004575 stone Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
【考案の詳細な説明】
本考案は、ガス管、上下水道管等のヒユーム
管、または鋼管等を礫地盤に横孔を掘削しつつ挿
入埋設する管埋設装置に関する。[Detailed Description of the Invention] The present invention relates to a pipe burying device for inserting and burying gas pipes, water and sewage pipes, etc., or steel pipes, etc., in gravel ground while digging a horizontal hole.
近時、管埋設にホリゾンタルオーガーが多用さ
れるようになつており、これに伴なつて埋設地盤
も通常の地盤のみならず、滞水砂層、軟岩層、礫
地盤へと使用範囲が拡大されている。 Recently, horizontal augers have been increasingly used for burying pipes, and along with this, the range of burying ground has been expanded from normal ground to water-bearing sand, soft rock, and gravel ground. There is.
しかし、滞水砂層への削孔では、掘削中断時ま
たは休止時に地下湧水が埋設管内を通つて排出さ
れると、埋設管前方の未掘削地盤が沈降したり、
崩壊するなどの問題が起る。 However, when drilling into a water-retaining sand layer, if underground spring water is discharged through the buried pipe when drilling is interrupted or stopped, the unexcavated ground in front of the buried pipe may settle, or
Problems such as collapse may occur.
また礫地盤においては、50〓以上の玉石等の礫
が存在する地盤での掘削は、通常の掘削刃では破
砕することができないとともに、オーガースクリ
ユーにより搬送搬出することもできない。したが
つて、このような大型礫が存在する地盤への管埋
設はかきわめて困難であり、事実上埋設不能とな
る場合が多い。 In addition, when excavating in gravel ground where gravel such as boulders of 50 mm or more is present, it is not possible to crush the gravel with a normal excavator blade, and it is also impossible to transport it with an auger screw. Therefore, it is extremely difficult to bury the pipe in the ground where such large gravel exists, and in many cases it is virtually impossible to bury the pipe.
本考案はこれに鑑み、地下滞水砂層、軟岩層は
もとより、特に大型礫が存在しかつ地下湧水のあ
る礫地盤であつても容易に掘削しつゝ管の推進挿
入ができる管埋設装置を提供することを目的とし
てなされたものである。 In view of this, the present invention is a pipe burying device that can easily excavate and push and insert pipes not only in underground water-retaining sand layers and soft rock layers, but also in gravel ground where there are large gravels and underground springs. It was made with the purpose of providing.
上記目的を達成するため、本考案による礫地盤
用管埋設装置は、埋設管の先端に先導管を、該先
導管の先端に刃口リングを各々設けるとともに該
埋設管内にオーガースクリユーを挿入し、このオ
ーガースクリユーを回転駆動して管先端地盤を掘
削しつつ埋設管を後方から押圧して地中に推進埋
設する管埋設装置において、前記埋設管および先
導管内に内挿され前記オーガースクリユーを挿通
するケーシングと、該ケーシングの先端部を閉鎖
し得るよう前記オーガースクリユーの先端部に固
設された止水板と、この止水板の前端に所要長さ
の筒状の側壁を介して固着され前記刃口リングの
内周面に近接しておかれる円盤状の基板と、刃口
リングの内周面に固着され前記ケーシングの先端
外周部に延びる環状壁と、前記基板の背面、刃口
リングの内周面、および前記環状壁で囲まれた破
砕礫導入室と、この導入室内にあつて前記基板の
背面および前記側壁外周面に互いに隣接して回転
自在に取付られ円錐状外周面に多数の突起刃を有
する複数個の破砕刃と、前記基板の外面に回転自
由にかつ環状に配設され円錐状の外周面に多数の
突起刃を突設した複数個の破砕刃とを備え、前記
基板の外周部には切欠等からなる破砕礫の導入口
を形成するとともに基板の中央部には前記オーガ
ースクリユーの軸内の水供給路に連通する水噴射
口を開設してなり、前記オーガースクリユーの進
退により前記止水板を前記ケーシングの先端に脱
着させて地下水または土砂の流入を調整するため
開閉する際、砕石の噛み込みにより開閉が妨げら
れるのを防止するよう前記破砕礫導入口内で、さ
らに細く砕石し得るようにしたことを特徴とする
ものである。 In order to achieve the above object, the gravel ground pipe burying device according to the present invention is provided with a leading pipe at the tip of the buried pipe, a cutter ring at the tip of the leading pipe, and an auger screw inserted into the buried pipe. In this pipe burying device, the auger screw is inserted into the buried pipe and the leading pipe, and the auger screw is inserted into the buried pipe and the leading pipe. a casing through which the auger screw is inserted, a water stop plate fixed to the tip of the auger screw so as to close the tip of the casing, and a cylindrical side wall of a required length to the front end of the water stop plate. a disc-shaped substrate fixed to the blade edge ring and placed close to the inner circumferential surface of the cutting edge ring; an annular wall fixed to the inner circumferential surface of the cutting edge ring and extending to the outer periphery of the tip of the casing; a back surface of the substrate; A crushed gravel introduction chamber surrounded by the inner peripheral surface of the cutting edge ring and the annular wall, and a conical outer circumference rotatably attached to the back surface of the substrate and the outer peripheral surface of the side wall within this introduction chamber and adjacent to each other. A plurality of crushing blades having a large number of protruding blades on a surface, and a plurality of crushing blades that are rotatably arranged in an annular shape on the outer surface of the substrate and have a large number of protruding blades protruding from a conical outer peripheral surface. A crushed gravel inlet consisting of a cutout or the like is formed on the outer periphery of the substrate, and a water injection port is provided in the center of the substrate to communicate with the water supply channel in the shaft of the auger screw. When opening and closing the water stop plate to adjust the inflow of groundwater or earth and sand by moving the auger screw back and forth to attach and detach the water stop plate to the tip of the casing, the crushing plate is designed to prevent the opening and closing from being obstructed by crushed stone being caught in the casing. It is characterized by being able to crush finer stones within the gravel inlet.
以下、本考案を図面に示す実施例を参照して説
明する。 Hereinafter, the present invention will be described with reference to embodiments shown in the drawings.
図示しない埋設管の先端には第１図に示すよう
に先導管１が連設され、先導管１の内部には円筒
状のケーシング２が挿入されている。このケーシ
ング２内にはオーガースクリユー３が進退自在に
貫通されている。前記先導管１の前端には刃口リ
ング４がシール部材５，５を介して接合され、こ
の刃口リング４の後部内周に固設された環状壁６
と前記先導管１とはこの先導管１に内設される複
数本の方向修正シリンダ７により連結されてい
て、このシリンダ７への圧油の給排を遠隔操作す
ることにより刃口リング４の方向を修正し得るよ
うになつている。 As shown in FIG. 1, a leading pipe 1 is connected to the tip of the buried pipe (not shown), and a cylindrical casing 2 is inserted into the leading pipe 1. An auger screw 3 is passed through the casing 2 so as to be freely advanced and retracted. A cutting edge ring 4 is joined to the front end of the leading pipe 1 via seal members 5, 5, and an annular wall 6 is fixed to the rear inner periphery of the cutting edge ring 4.
The guide pipe 1 is connected to the guide pipe 1 by a plurality of direction correction cylinders 7 installed inside the guide pipe 1, and the direction of the blade ring 4 can be adjusted by remotely controlling the supply and discharge of pressure oil to the cylinders 7. It is now possible to fix this.
前記オーガースクリユー３の先端部には、前記
ケーシング２の先端部内に可及的密に嵌合し得る
止水板８が固着され、この止水板８の前方は所要
長さの筒状の側壁に形成されてその端部は円盤状
の基板９に固着されている。 A waterstop plate 8 that can fit as tightly as possible into the tip of the casing 2 is fixed to the tip of the auger screw 3, and a cylindrical pipe of a required length is attached in front of the waterstop plate 8. It is formed on the side wall and its end is fixed to a disk-shaped substrate 9.
この基板９の外周は前記刃口リング４の内周面
に近接する外径を有し、この基板９の背面と前記
刃口リング４の内周面および環状壁６とにより破
砕礫導入室１０が形成される。 The outer periphery of this substrate 9 has an outer diameter close to the inner circumferential surface of the cutting edge ring 4, and the crushed gravel introduction chamber 10 is formed by the back surface of this substrate 9, the inner circumferential surface of the cutting edge ring 4, and the annular wall 6. is formed.
この破砕礫導入室１０内の基板９の背面９ａお
よび前記止水板８の側壁外周面８ａには、截頭円
錐状をなし周面に多数の突起刃１１が突設された
複数個の破砕刃１２，１２…（通称トリコンビツ
ト）が軸受１３，１３…によりそれぞれが互いに
隣接して向き合う状態にかつ回転自由に軸支され
ている。 On the back surface 9a of the substrate 9 in the crushed gravel introduction chamber 10 and on the outer circumferential surface 8a of the side wall of the water stop plate 8, there are a plurality of crushed gravels each having a truncated conical shape and having a large number of protruding blades 11 protruding from the circumferential surface. Blades 12, 12... (commonly known as tricone bits) are supported by bearings 13, 13... so that they are adjacent to each other, facing each other, and are freely rotatable.
また前記基板９の前面側には、上記と同様に周
面に多数の突起刃１４が突設された複数個の破砕
刃１５，１５…が軸受１６，１６…により回転自
由に軸支されている。図示の実施例では、基板９
の前面側には、基板９の外周に近い位置に６個の
破砕刃１５，１５…がその軸線が基板９の前方に
おいてオーガースクリユー２の軸線と交わるよう
に等間隔をおいて環状に配設され、それより内側
には３個の破砕刃１５，１５，１５が前記と同様
な関係をもつて等間隔に環状に配設されている。
基板９の背面９ａ側には基板９の外周に近い位置
に一対の破砕刃１２，１２が等間隔で３個所あ
り、何れもその軸線が基板９の後方においてオー
ガースクリユー２の軸線と交わるように配設さ
れ、前記止水板８の側壁外周面８ａ側には、一対
の破砕刃１２，１２が等間隔で３個所あり、一対
の内の何れか一方の破砕刃１２が、前記基板９の
背面９ａ側に配設された一対の破砕刃１２，１２
の間に位置するように配設されているので、基板
９の背面９ａ側に軸支された破砕刃１２とは向き
が逆となつている。 Further, on the front side of the substrate 9, a plurality of crushing blades 15, 15, . There is. In the illustrated embodiment, the substrate 9
On the front side of the board 9, six crushing blades 15, 15, . On the inner side thereof, three crushing blades 15, 15, 15 are arranged annularly at equal intervals in the same relationship as described above.
On the rear surface 9a side of the substrate 9, there are three pairs of crushing blades 12, 12 at equal intervals near the outer periphery of the substrate 9, and the axes of the blades intersect with the axis of the auger screw 2 at the rear of the substrate 9. There are three pairs of crushing blades 12, 12 at equal intervals on the side wall outer circumferential surface 8a side of the water stop plate 8, and one of the pair of crushing blades 12 is arranged on the side wall outer circumferential surface 8a side of the water stop plate 8. A pair of crushing blades 12, 12 arranged on the back surface 9a side of the
Since the crushing blade 12 is disposed so as to be located between the two sides, the direction is opposite to that of the crushing blade 12 which is pivotally supported on the back surface 9a side of the substrate 9.
なお、この破砕刃１２，１５の設置数および配
置の仕方は、この実施例に限定されるものでな
く、その数を適宜選択することができる。 Note that the number and arrangement of the crushing blades 12 and 15 are not limited to this embodiment, and the number can be selected as appropriate.
前記基板９の外周および外周近傍には、破砕刃
１５，１５…の間に位置して切欠および開口孔か
らなる破砕礫導入口１７，１７…，１８，１８…
が形成されている。また前記基板９の内側に配設
される破砕刃１５，１５，１５の間に位置してオ
ーガースクリユー３の軸３ａの内部に設けられた
水供給路１９は、前記止水板８の側壁内に設けら
れた管路２０と連結され、この管路２０はさらに
水噴射口２１，２１，２１に連通されていて、前
方に向け水を噴出させるようになつている。前記
水供給路１９の後端は図示しない駆動部に設置さ
れるスイベルに連通されている。 On the outer periphery and near the outer periphery of the substrate 9, crushed gravel inlet ports 17, 17, . . . , 18, 18, .
is formed. Further, a water supply channel 19 provided inside the shaft 3a of the auger screw 3 and located between the crushing blades 15, 15, 15 disposed inside the substrate 9 is connected to a side wall of the water stop plate 8. It is connected to a conduit 20 provided therein, and this conduit 20 is further communicated with water injection ports 21, 21, 21, so as to eject water forward. The rear end of the water supply path 19 is communicated with a swivel installed in a drive section (not shown).
なお、前記止水板８は、ケーシング２の先端部
内に嵌合して閉塞するようにするほか、この止水
板８をケーシング２より大径に形成し、これをケ
ーシング２の先端面に当接することにより閉塞さ
せるようにしてもよい。 The water stop plate 8 is designed to fit into and close the tip of the casing 2, and is also formed to have a larger diameter than the casing 2, so that it comes into contact with the tip of the casing 2. It may also be closed by touching.
つぎに上記実施例の作用を説明する。 Next, the operation of the above embodiment will be explained.
礫地盤を掘削するには、オーガースクリユー３
を回転駆動すると、これと一体の基板９が回転さ
れ、その前面に配設されている多数の破砕刃１
５，１５，…が地盤との摩擦により自転しながら
中心軸芯に沿つて公転する。地盤内に存在する玉
石等の礫が各破砕刃１５，１５，…間に入り込ん
で破砕刃１５，１５，…の突起刃１４により細く
砕かれる。 To excavate gravel ground, use Auger Screw 3.
When the is rotated, the base plate 9 integrated with the base plate 9 is rotated, and a large number of crushing blades 1 disposed on the front surface of the base plate 9 are rotated.
5, 15,... revolve around the central axis while rotating due to friction with the ground. Gravel such as boulders existing in the ground enters between the crushing blades 15, 15, . . . and is finely crushed by the protruding blades 14 of the crushing blades 15, 15, .
破砕されて小さくなつた破砕礫は、破砕刃１
５，１５，…の間を通つて次第に基板９の外周部
の方へ押しやられ、基板９の外周の破砕礫導入口
１７，１７，…，１８，１８，１８から基板９の
背面９ａ側の破砕礫導入室１０内に送り込まれ
る。この導入室１０に入つた破砕礫は、基板９お
よび止水板８の側壁外周面８ａに配設された破砕
刃１２が自転しながらオーガースクリユー３の回
転により公転するため各破砕刃１２，１２の間に
入り込んで破砕刃１２，１２の突起刃１１により
さらに細く砕かれる。 The crushed gravel that has been crushed into smaller pieces is crushed by the crushing blade 1.
5, 15, . The crushed gravel is sent into the crushed gravel introduction chamber 10. The crushed gravel that has entered the introduction chamber 10 is rotated by the rotation of the auger screw 3 while the crushing blades 12 disposed on the outer peripheral surface 8a of the side wall of the base plate 9 and the water stop plate 8 revolve around each other. 12 and is further crushed into fine pieces by the protruding blades 11 of the crushing blades 12, 12.
そしてこのように破砕されて小さくなつた破砕
礫は、止水板８とケーシング２の先端縁との間か
らケーシング２内に入り、スクリユー羽根３ｂに
より後方へ送られ、地上に排出される。 The crushed gravel thus crushed and reduced in size enters the casing 2 between the water stop plate 8 and the leading edge of the casing 2, is sent rearward by the screw blade 3b, and is discharged to the ground.
この場合、礫の破砕時に基板９の外面中央部に
開口する水噴射口２１，２１，２１から水を噴出
しながら破砕することにより土砂の掘削、搬出効
率を高めることができる。 In this case, when the gravel is crushed, the efficiency of excavating and carrying out the earth and sand can be increased by spouting water from the water injection ports 21, 21, 21 opened at the center of the outer surface of the substrate 9.
本考案は、以上説明したように構成し、特に破
砕礫導入室内には破砕刃を設けて導入室内に導入
された破砕礫をさらに細かく破砕するようにした
から、この種のホリゾルタルオーガーにおいて刃
口リング側の水圧と土盤の水圧とを保持するため
に、しばしば止水板により遮水して水圧をバラン
スさせ掘進させる場合においても破砕礫が大きく
てケーシングの先端と止水板との間に噛み込ん
で、止水板とケーシングの先端とが接触せず空き
つぱなしという不具合が防止でき、オーガースク
リユーの進退による止水板のケーシング閉塞をス
ムーズに行なうことができ、また破砕礫導入室内
での砕石はより搬出しやすくなるため搬出効率を
一層高めることができる。 The present invention is constructed as explained above, and in particular, a crushing blade is provided in the crushed gravel introduction chamber to further finely crush the crushed gravel introduced into the introduction chamber. In order to maintain the water pressure on the cutting edge ring side and the water pressure on the soil, a water stop plate is often used to block the water and balance the water pressure during excavation. This prevents the problem of the water stop plate and the tip of the casing not coming into contact with each other and remaining empty due to the water stop plate getting stuck in between, and allowing the water stop plate to smoothly close the casing due to the advance and retreat of the auger screw. Since the crushed stone in the introduction chamber can be more easily transported, the transport efficiency can be further improved.
第１図は本考案にかかる礫地盤用管埋設装置の
一実施例を示す破断側面図、第２図は第１図をＡ
−A′方向から見た正面図、第３図は第１図をＢ
−B′方向で切断した場合の背面図である。
１……先導管、２……ケーシング、３……オー
ガースクリユー、４……刃口リング、６……環状
壁、８……止水板、８ａ……側壁外周面、９……
基板、９ａ……背面、１０……破砕礫導入室、１
１……突起刃、１２……破砕刃、１７，１８……
破砕礫導入口、１９……水供給路、２０……管
路、２１……水噴射口。
Figure 1 is a cutaway side view showing an embodiment of the gravel ground pipe burying device according to the present invention, and Figure 2 is a cross-sectional view of Figure 1.
-Front view seen from the A' direction, Figure 3 is the same as Figure 1.
FIG. 6 is a rear view when cut in the −B′ direction. DESCRIPTION OF SYMBOLS 1...Leading pipe, 2...Casing, 3...Auger screw, 4...Blade ring, 6...Annular wall, 8...Water stop plate, 8a...Outer peripheral surface of side wall, 9...
Substrate, 9a... Back, 10... Crushed gravel introduction chamber, 1
1... Protrusion blade, 12... Crushing blade, 17, 18...
Crushed gravel inlet, 19... water supply path, 20... pipe line, 21... water injection port.
Claims (1)
口リングを各々設けるとともに該埋設管内にオー
ガースクリユーを挿入し、このオーガースクリユ
ーを回転駆動して管先端地盤を掘削しつつ埋設管
を後方から押圧して地中に推進埋設する管埋設装
置において、前記埋設管および先導管内に内挿さ
れ前記オーガースクリユーを挿通するケーシング
と、該ケーシングの先端部を閉鎖し得るよう前記
オーガースクリユーの先端部に固設された止水板
と、この止水板の前端に所要長さの筒状の側壁を
介して固着され前記刃口リングの内周面に近接し
ておかれる円盤状の基板と、刃口リングの内周面
に固着され前記ケーシングの先端外周部に延びる
環状壁と、前記基板の背面、刃口リングの内周
面、および前記環状壁で囲まれた破砕礫導入室
と、この導入室内にあつて前記基板の背面および
前記側壁外周面に互いに隣接して回転自由に取付
られ円錐状外周面に多数の突起刃を有する複数個
の破砕刃と、前記基板の外面に回転自由にかつ環
状に配設され円錐状の外周面に多数の突起刃を突
設した複数個の破砕刃とを備え、前記基板の外周
部には切欠等からなる破砕礫の導入口を形成する
とともに基板の中央部には前記オーガースクリユ
ーの軸内の水供給路に連通する水噴射口を開設し
てなる礫地盤用管埋設装置。 A guide pipe is provided at the tip of the buried pipe, a cutting edge ring is provided at the tip of the guide pipe, and an auger screw is inserted into the buried pipe, and the auger screw is rotated to excavate the ground at the tip of the pipe while burying. A pipe burying device that presses a pipe from behind to propel the pipe into the ground, and includes a casing that is inserted into the buried pipe and the leading pipe and passes through the auger screw, and a casing that is arranged to close the tip of the casing. A water stop plate fixed to the tip of the screw, and a disk fixed to the front end of the water stop plate via a cylindrical side wall of a required length and placed close to the inner peripheral surface of the cutting edge ring. a shaped substrate, an annular wall fixed to the inner circumferential surface of the cutting edge ring and extending to the outer periphery of the tip of the casing, and crushed gravel surrounded by the back surface of the substrate, the inner circumferential surface of the cutting edge ring, and the annular wall. an introduction chamber; a plurality of crushing blades which are rotatably attached adjacent to each other on the back surface and the outer peripheral surface of the side wall of the substrate in the introduction chamber and have a large number of protruding blades on the conical outer peripheral surface; A plurality of crushing blades are arranged on the outer surface of the substrate in an annular manner so as to be freely rotatable, and have a large number of protruding blades protruding from the conical outer peripheral surface. A pipe burying device for gravel ground, which has a water injection port in the center of the substrate that communicates with the water supply channel in the shaft of the auger screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20441283U JPS60107196U (en) | 1983-12-26 | 1983-12-26 | Pipe burial equipment for gravel ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20441283U JPS60107196U (en) | 1983-12-26 | 1983-12-26 | Pipe burial equipment for gravel ground |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60107196U JPS60107196U (en) | 1985-07-20 |
| JPH0227036Y2 true JPH0227036Y2 (en) | 1990-07-23 |
Family
ID=30766811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20441283U Granted JPS60107196U (en) | 1983-12-26 | 1983-12-26 | Pipe burial equipment for gravel ground |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60107196U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5927107B2 (en) * | 2012-12-10 | 2016-05-25 | アイレック技建株式会社 | Cutter head |
-
1983
- 1983-12-26 JP JP20441283U patent/JPS60107196U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60107196U (en) | 1985-07-20 |
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