JPS6172194A - Method and device for constructing horizontal pit - Google Patents

Method and device for constructing horizontal pit

Info

Publication number
JPS6172194A
JPS6172194A JP19352984A JP19352984A JPS6172194A JP S6172194 A JPS6172194 A JP S6172194A JP 19352984 A JP19352984 A JP 19352984A JP 19352984 A JP19352984 A JP 19352984A JP S6172194 A JPS6172194 A JP S6172194A
Authority
JP
Japan
Prior art keywords
cutting
cutting tool
horizontal shaft
excavation direction
construction device
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
Application number
JP19352984A
Other languages
Japanese (ja)
Inventor
萩本 博美
豊 加島
紀夫 近藤
井上 正己
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TAIHO KENSETSU KK
Original Assignee
TAIHO KENSETSU KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TAIHO KENSETSU KK filed Critical TAIHO KENSETSU KK
Priority to JP19352984A priority Critical patent/JPS6172194A/en
Publication of JPS6172194A publication Critical patent/JPS6172194A/en
Pending legal-status Critical Current

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  • 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】 (産業上の利用分野) 本発明は任意形状の切削断面の横坑を築造し1qる横坑
築造方法およびその装置にWAする。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention is directed to a horizontal shaft construction method and apparatus for constructing a horizontal shaft with a cut cross section of an arbitrary shape.

(従来の技術) 従来、例えば矩形断面を掘削する方法としては、矩形断
面の筒体を作り、人力で地山を掘削し横坑を築造する方
法や、矩形断面の筒体内に掘進方向と平行に掘削具の回
転軸を持ち、掘削具を単体あるいは複数備えた装置で横
坑を築造する方法がある。
(Prior art) Conventionally, for example, methods for excavating a rectangular cross-section include creating a cylinder with a rectangular cross-section and manually excavating the ground to build a horizontal shaft; There is a method of constructing a horizontal shaft using a device that has a rotating shaft for the excavating tool and is equipped with one or more excavating tools.

(発明が解決しようとする問題点) しかし、前者の人力で掘削する方法では、地下水の1富
な土質の場合、補助工法(圧気、地盤改良)の併用が必
要で、工費が高く、危険も大きいという欠点がある。
(Problem to be solved by the invention) However, with the former manual excavation method, if the soil is rich in groundwater, it is necessary to use auxiliary methods (pressurized air, ground improvement), which is expensive and dangerous. It has the disadvantage of being large.

一方、儀者の掘削装置では掘削具による切削断面は円形
になり、矩形断面の隅等は未掘削部分として残り、硬い
地山では掘進できない。また未掘削部分を少なくしよう
とすると回転掘削機構が複雑になる等の欠点がある。
On the other hand, with the digger's excavation equipment, the cross section cut by the excavator is circular, and the corners of the rectangular cross section remain as unexcavated parts, making it impossible to excavate in hard ground. In addition, if an attempt is made to reduce the unexcavated area, there are drawbacks such as a complicated rotary excavation mechanism.

また、矩形以外の断面、例えば六角形、六角形、直線部
分と弧状の湾曲部分とを含むもの等の切削断面、つまり
回転掘削具の回転軸に関して対象となる図形及びその集
合体の切削断面を容易に得ることのできる掘削方法や装
置は、従来特に提供されていない実情にあった。
In addition, cut sections of cross sections other than rectangles, such as hexagons, hexagons, straight sections and arcuate curved sections, in other words, cut sections of shapes and aggregates thereof that are targeted with respect to the rotation axis of the rotary excavator. Excavation methods and equipment that can be easily obtained have not been provided in the past.

(問題点を解決するための手段) 本発明は上記の点に鑑み提案されたもので、その目的と
するところは、四角形、六角形、六角形あるいは、例え
ば直線部分の両端を円弧で囲んだ形状等の切削断面、つ
まり回転掘削具の回転軸に関して対称となる図形及びそ
の集合体の横坑を容易に築造し得る横坑掘削方法および
その装置を提供することにある。
(Means for Solving the Problems) The present invention has been proposed in view of the above points, and its purpose is to form a rectangle, a hexagon, a hexagon, or, for example, a straight line with both ends surrounded by circular arcs. It is an object of the present invention to provide a method and apparatus for excavating a horizontal shaft that can easily construct a horizontal shaft having a cut cross section of a shape, that is, a shape that is symmetrical with respect to the rotation axis of a rotary excavator and an aggregate thereof.

(発明の構成) 以下、図面に沿って本発明を説明する。(Structure of the invention) Hereinafter, the present invention will be explained along with the drawings.

第1図ないし第4図は本発明の第1実施例を示すもので
、図中1は前部に断面略半円状の隔壁1aが設けられた
シールド筒の如き筒体で、この筒体1は掘進方向に対し
水平方向に向かって略直角方向に延びる軸aを基準に正
面から児て線対称図形となる断面形状に形成されており
、この実施例では正面から児た場合、横長の略矩形状を
呈している。
1 to 4 show a first embodiment of the present invention. In the figures, reference numeral 1 denotes a cylindrical body such as a shield cylinder, which is provided with a partition wall 1a having a substantially semicircular cross section at the front part. 1 is formed in a cross-sectional shape that is line symmetrical when viewed from the front with reference to an axis a that extends horizontally and approximately perpendicular to the excavation direction.In this embodiment, when viewed from the front, it has a horizontally long shape. It has a substantially rectangular shape.

2は筒体1の前方に形成された切羽室3に設けられた切
削具で、この切削具2は回転可能な略円筒状を里する回
転ドラム4と、この回転ドラム4の外周部に放射状に突
設された複数の切削ビット支持部材5と、この切削ビッ
ト支持部材5の先端部に設けられた地山を掘削するため
の切削ビット6にて構成されており、回転ドラム4の略
前方部の一部は地山を掘削すべく筒体1の本体前方から
露出している。なお、回転ドラム4の回転中心である回
転軸は、この実施例では前記軸aと重なっている。
Reference numeral 2 denotes a cutting tool installed in a face chamber 3 formed in front of the cylindrical body 1. It is composed of a plurality of cutting bit support members 5 protruding from the rotary drum 4, and a cutting bit 6 provided at the tip of the cutting bit support member 5 for excavating the ground. A part of the section is exposed from the front of the main body of the cylinder 1 for excavating the ground. In this embodiment, the rotation axis, which is the center of rotation of the rotary drum 4, overlaps with the axis a.

しかして、前記切削具2の回転ドラム4の中央には、第
3図に示すように、例えば筒体1の側壁1hに両端がそ
れぞれ固定された固定軸7#貫設され、この固定軸7の
適宜の位置に適数個の切削具駆動モータ8が取付けられ
、この切削具駆動モータ8の回転部分が回転ドラム4の
内周壁に連結され、回転ドラム4、ひいては切削具2が
回転するように構成されている。すなわち、切削具駆動
モータ8は、固定軸7の回りに、本体自身が回転する、
例えばヘゲランドモータのような構造となっており、固
定軸7に設けられた動力伝達孔9内に設けられたエネル
ギー供給手段を介して駆動モータ8に動力源が伝達され
る。
In the center of the rotating drum 4 of the cutting tool 2, as shown in FIG. An appropriate number of cutting tool drive motors 8 are installed at appropriate positions, and the rotating portion of the cutting tool drive motors 8 is connected to the inner circumferential wall of the rotating drum 4, so that the rotating drum 4 and, by extension, the cutting tool 2 are rotated. It is composed of That is, the cutting tool drive motor 8 has a main body that rotates around the fixed shaft 7.
For example, it has a structure like a Hegeland motor, and a power source is transmitted to the drive motor 8 via an energy supply means provided in a power transmission hole 9 provided in a fixed shaft 7.

また、回転ドラム4の外周部には、第1図に示すように
、粘性付与材注入孔10が設けられ、この粘性付与材注
入孔10は図示しない粘性付与材供給手段に接続され、
地山ないし掘削土砂に対し粘性付与材を注入し得るよう
に構成されている。
Further, as shown in FIG. 1, a viscosity imparting material injection hole 10 is provided on the outer peripheral portion of the rotating drum 4, and this viscosity imparting material injection hole 10 is connected to a viscosity imparting material supply means (not shown).
It is configured so that a viscosity imparting material can be injected into the ground or excavated soil.

11は隔壁1aの下方中央部に前端が連結され、切羽v
3と連通する排土装置であり、この排土装置11は円筒
状をなし、後方に向かって立上って配設されたケーシン
グ12と、このケーシング12内に回転可能に設けられ
たスクリューコンベヤ13と、このスクリューコンベヤ
13を駆動する、ケーシング12の後端に取付けられた
駆動モータ14とにて構成されている。
11 has a front end connected to the lower central part of the partition wall 1a, and a face v
This earth removal device 11 has a cylindrical shape, and includes a casing 12 that is disposed upwardly toward the rear, and a screw conveyor that is rotatably provided within the casing 12. 13, and a drive motor 14 attached to the rear end of the casing 12, which drives the screw conveyor 13.

また、15はシールド機本体推進用のシールドジヤツキ
、1Gはその後方に設けられた反力受、17は筒体後部
に設けられたテールシール、18はシールド機本体の推
進に伴って横坑を築造すべく順次組立てられたセグメン
トである。
In addition, 15 is a shield jack for propulsion of the shield machine body, 1G is a reaction force receiver installed behind it, 17 is a tail seal installed at the rear of the cylinder, and 18 is a horizontal shaft that is used to propel the shield machine body. These are segments that were assembled in sequence to build a.

掘削にあたっては切削具駆動モータ8を駆動すると回転
ドラム4が回転するため、切削ビット6により地山は掘
削される。この切削具2で掘削された土砂に対し必要に
応じ粘性付与材注入孔10から粘性付与材を注入し、塑
性′ifL動性が得られるよう切削ヒツト支持部材5に
より練り混ぜ、かつシールドジヤツキ15をg!動じて
筒体1を押圧して土圧を発生せしめると共に、隔壁1a
に取付けられる図示していない土圧計によりその上圧を
検出し、その上圧が一定となるよう排土用スクリューコ
ンベヤ13の回転数、シールドジヤツキ15の速度を調
節し横坑を築造していくものである。
During excavation, when the cutting tool drive motor 8 is driven, the rotary drum 4 rotates, so that the cutting bit 6 excavates the ground. A viscosity imparting material is injected into the earth and sand excavated by the cutting tool 2 from the viscosity imparting material injection hole 10 as necessary, and mixed by the cutting hit support member 5 so as to obtain plastic 'ifL mobility. 15g! It moves and presses the cylinder 1 to generate earth pressure, and the partition wall 1a
The upper pressure is detected by an earth pressure gauge (not shown) attached to the earth pressure gauge, and the rotation speed of the soil removal screw conveyor 13 and the speed of the shield jack 15 are adjusted so that the upper pressure is constant, and the horizontal shaft is constructed. It's something that will happen.

この場合、先端部に切削ビット6を有する切削ビット支
持部材5は矩形断面を隅無く掘削できるよう回転ドラム
4の外周上に多数段けられ、かつ切削ビット支持部材5
はそれぞれ同じ長さで放射状に延びており、また、筒体
1が正面から見て矩形を呈しているため、第5図(イ)
に示すように、矩形の切削断面を得ることができる。
In this case, a large number of cutting bit support members 5 having a cutting bit 6 at the tip are arranged on the outer periphery of the rotating drum 4 so that a rectangular cross section can be excavated without corners.
extend radially with the same length, and since the cylindrical body 1 has a rectangular shape when viewed from the front, Fig. 5(a)
A rectangular cut cross section can be obtained as shown in FIG.

なお、筒体1を細道方向に対し略直角方向をなす軸aを
基準に線対称図形となるある形状、例えば第5図(ロ)
に示すように六角形とし、これに対応して回転ドラム4
が外周軸方向に突設される切削ビット6が設けられた切
削ビット支持部材5の長さを調整すれば六角形の切削断
面を得る口とができる。
In addition, if the cylinder 1 has a certain shape that is line symmetrical with respect to the axis a that is approximately perpendicular to the direction of the narrow path, for example, as shown in FIG.
The rotating drum 4 is hexagonal as shown in FIG.
By adjusting the length of the cutting bit support member 5 provided with the cutting bit 6 that protrudes in the direction of the outer circumferential axis, a hexagonal cutting cross section can be obtained.

さらに、同様にして筒体1の形状、切削ビット支持部材
5の構成を設計変更するこ′とにより、第5図(ハ)な
いしくホ)に示す如き切削断面を得ることができる。
Furthermore, by similarly changing the design of the shape of the cylinder 1 and the configuration of the cutting bit support member 5, a cut cross section as shown in FIGS. 5(C) to 5(E) can be obtained.

なお、第5図(へ)、(ト)のように回転切削具の回転
軸に関して対称となる図形及びその集合体の切削断面を
得ることも可能である。
Note that it is also possible to obtain a cut cross section of a figure and an assembly thereof that are symmetrical with respect to the rotation axis of the rotary cutting tool, as shown in FIGS.

第6図ないし第9図は本発明の第2実施例を示すもので
、この実施例では回転ドラム4の外周に放射状に突設し
たリボンスクリュー支持部材19を介し外端部に切削ビ
ット6が設けられたリボン状スクリュー羽根20を設け
て切削具を構成した点が前述の実施例と異なっている。
6 to 9 show a second embodiment of the present invention. In this embodiment, a cutting bit 6 is attached to the outer end of the rotating drum 4 via a ribbon screw support member 19 that projects radially on the outer periphery of the rotating drum 4. This embodiment differs from the previous embodiment in that a ribbon-shaped screw blade 20 is provided to constitute a cutting tool.

その他部体1等の構成等は前述の実施例と同様であるた
め、同一部材には同じ符号を付し説明は省略する。
Since the configuration of the other parts 1 and the like is the same as in the above-described embodiment, the same members are given the same reference numerals and explanations will be omitted.

第10図ないし第15図は本発明の第3実施例を示す。10 to 15 show a third embodiment of the present invention.

この実施例は矩形断面を掘削するためのもので、切削具
は主切削具2Aと中央切削具24とにてなり、かつ主切
削A2Aは、左右に2分割された切欠きスクリューコン
ベヤ構成となっており、また、その中央部には、掘進方
向に向かって延びるセンターシャフト21を回転軸とし
、その先端部にカッタービット22が設けられた十字状
のカッタースポーク23を有する中央切削具24が設け
られて構成されている。
This embodiment is for excavating a rectangular cross section, and the cutting tool consists of a main cutting tool 2A and a central cutting tool 24, and the main cutting tool A2A has a notched screw conveyor structure divided into left and right halves. Further, in the center thereof, a central cutting tool 24 is provided, which has a center shaft 21 extending in the excavation direction as a rotation axis, and has a cross-shaped cutter spoke 23 with a cutter bit 22 provided at the tip thereof. It is constructed according to the following.

すなわち、各回転ドラム4A、4Bの外周上に切欠きス
クリュー羽根25A、25Bを螺旋状に配置して切欠き
スクリューコンベヤを構成し、かつ切欠きスクリュー羽
根25A、25Bの外周部に切削ビット6がそれぞれ設
けられている。この場合、螺旋状の各切欠きスクリュー
羽根25A、25Bの傾きは下方中央部に設けられた排
土装置11へ掘削土砂を辱くように設けられている。ま
た、各切欠きスクリュー羽根25A、25Bには回転ド
ラムdA、 4Bの軸方向に沿って延びる練混ぜ圓26
がそれぞれ設けられており、切欠きスクリューコンベヤ
による練混ぜ効果をより高めている。なお、この実施例
ではシールド機の中心部分に切欠きスクリューコンベヤ
の駆動部分を設け、切欠きスクリュー駆動用モータ27
のモータ軸に設けられたギヤと噛合する各回転ドラム4
A。
That is, notched screw blades 25A, 25B are arranged spirally on the outer periphery of each rotating drum 4A, 4B to constitute a notched screw conveyor, and cutting bits 6 are arranged on the outer periphery of each notched screw blade 25A, 25B. Each is provided. In this case, the inclination of each spiral notched screw blade 25A, 25B is provided so as to throw the excavated earth and sand into the earth removal device 11 provided in the lower central part. In addition, each notched screw blade 25A, 25B has a kneading ring 26 extending along the axial direction of the rotating drum dA, 4B.
are provided for each, further enhancing the mixing effect of the notched screw conveyor. In this embodiment, a notched screw conveyor driving part is provided in the center of the shield machine, and a notched screw driving motor 27 is provided.
Each rotating drum 4 meshes with a gear provided on the motor shaft of
A.

4Bの内側外周部に設けられた旋回ギヤ28を介して切
欠きスクリュー羽根25A、25Bを有する回転ドラム
4A、4Bを回転させるため、この切欠きスクリュー羽
根25A、25Bを有する回転ドラム4A、 4Bは左
右に中央部で別れており、中央側の支持部材40内に設
けられたそれぞれ個別の切欠きスクリュー駆動用モータ
27によって駆動されるように構成されている。
In order to rotate the rotary drums 4A, 4B having notched screw blades 25A, 25B via a turning gear 28 provided on the inner outer periphery of the rotating drum 4B, the rotary drums 4A, 4B having notched screw blades 25A, 25B are The left and right parts are separated at the center, and are configured to be driven by individual notch screw drive motors 27 provided in the support member 40 on the center side.

したがって、シールド機中央部分の掘削ができないため
、′切欠きスクリューコンベヤより前方に突出するフィ
ッシュテール状の中央ビット29.力゛ツターピッ1〜
22.力゛ンタースポーク23、カッタースポーク23
の後方に設けられた練混ぜ買30等から成る中央切削具
24を設け、中央部未掘削部分をカバーし、矩形断面全
体を掘削するように構成されている。
Therefore, it is not possible to excavate the central part of the shield machine, so the fishtail-shaped central bit 29 protrudes forward from the notched screw conveyor. Power Tsuta Pi 1~
22. Force center spoke 23, cutter spoke 23
A central cutting tool 24 consisting of a mixer 30 and the like is provided at the rear of the excavator, and is configured to cover the unexcavated central portion and excavate the entire rectangular cross section.

しかして、中央ビット29は回転軸すなわちセンターシ
ャフト21の先端部に設けられ、また、この部分には、
センタ−シャフト21中央部内にその軸方向に沿って貫
設され、かつ先端部にて開口された粘性付与材注入孔2
1aが設けられている。また、センターシャフト21の
俄端には図示しない粘性付与材注入手段と接続されたス
イベルジヨイントが設けられ、これらを介し必要に応じ
粘性付与材を注入するようになっている。
Therefore, the center bit 29 is provided at the tip of the rotating shaft, that is, the center shaft 21, and this part includes:
A viscosity imparting material injection hole 2 is provided through the center of the center shaft 21 along its axial direction and is open at the tip.
1a is provided. Further, a swivel joint connected to a viscosity-imparting material injection means (not shown) is provided at the end of the center shaft 21, and the viscosity-imparting material is injected through these as necessary.

更に筒体1内には適宜支持部材1cが設けられ、この支
持部材1Cに設けられたセンターシャフト支持部材31
によって前記センターシャフト21が回動自在に支持さ
れている。すなわち、センターシャフト21の後方には
駆動モータ32のモータ軸に取付けられたとニオン33
と噛合する減速歯車34が設けられ、駆動モータ32の
回転力が伝達されセンターシャフト21、ひいては中央
切削具24が回転するものである。
Furthermore, a support member 1c is appropriately provided inside the cylinder 1, and a center shaft support member 31 provided on this support member 1C.
The center shaft 21 is rotatably supported by. That is, at the rear of the center shaft 21 there is a shaft 33 attached to the motor shaft of the drive motor 32.
A reduction gear 34 is provided which meshes with the drive motor 32, and the rotational force of the drive motor 32 is transmitted to rotate the center shaft 21 and, by extension, the central cutting tool 24.

なお、この実施例では筒体1は掘進方向に対し略直角方
向をなす軸a(回転ドラム4A、4Bの回転軸と共通)
を基準に線対称図形となる形状に形成されている。また
、主切削具2Aの各回転ドラム4A。
In this embodiment, the cylindrical body 1 has an axis a (common to the rotation axis of the rotary drums 4A and 4B) that is substantially perpendicular to the excavation direction.
It is formed into a shape that is line symmetrical with reference to . Moreover, each rotating drum 4A of the main cutting tool 2A.

4Bは掘進方向に対し略直角方向をなす回転軸を中心に
回転するものである。
4B rotates around a rotation axis that is substantially perpendicular to the excavation direction.

その地図中35はエレクタ−36は各回転ドラム4A。In the map, 35 indicates erector 36, each rotary drum 4A.

4Bの外端部の凹部内に設けられ、かつ各回転ドラム4
A、 413を回動自在に支持する支持部材で、筒体1
の側部の内壁中央部に突設されている。また、37は支
持部材36の外周と各回転ドラム4A、4Bの支持部と
の間に設けられたシール、38はベアリングである。3
9はシールド機中央部に設けられ、各回転ドラム4A、
 4Bの内端部を支持する支持部40の外周に設けられ
たシールである。他の構成は前述の第1.第2実施例と
同様である。
4B in the recess at the outer end of each rotating drum 4B.
A, a support member that rotatably supports 413, and is
It protrudes from the center of the inner wall on the side. Moreover, 37 is a seal provided between the outer periphery of the support member 36 and the support part of each rotating drum 4A, 4B, and 38 is a bearing. 3
9 is provided at the center of the shield machine, and each rotating drum 4A,
This is a seal provided on the outer periphery of the support section 40 that supports the inner end of the support section 4B. Other configurations include the above-mentioned 1. This is the same as the second embodiment.

すなわら、掘削された土砂は、粘性付与材注入孔10.
21aから粘性付与材を注入し塑性流動性が得られるよ
う、切欠きスクリューコンベヤ、および練混ぜ芙26に
より、練り混ぜられ、切羽部分に加圧充満させ図示して
いない土圧計により土圧を計測し、その上圧が一定とな
るように排土装置11の回転数、シールドジヤツキ15
の速度を調節して横坑を築造するものである。
In other words, the excavated earth and sand are poured into the viscosity imparting material injection hole 10.
The viscosity imparting material is injected from 21a and mixed by a notched screw conveyor and kneading pot 26 to obtain plastic fluidity, and the face part is filled with pressure and the earth pressure is measured using an earth pressure gauge (not shown). The rotation speed of the soil removal device 11 and the shield jack 15 are adjusted so that the upper pressure is constant.
The shaft is constructed by adjusting the speed of the shaft.

第16図ないし第19図は本発明の第4実施例を示すも
ので、この実施例では第3実施例におけるそれぞれ回転
可能な切欠きスクリューコンベヤを上下2段に互いに接
するように配置した点に主たる特徴を有している。この
場合、筒体1もそれに伴なってやや縦長になるため、カ
ッタースポーク23の長さもそれに対応して大きく形成
されている。
16 to 19 show a fourth embodiment of the present invention, and this embodiment differs from the third embodiment in that the rotatable cutout screw conveyors are arranged in upper and lower two stages so as to be in contact with each other. It has the main characteristics. In this case, since the cylindrical body 1 also becomes slightly elongated, the length of the cutter spoke 23 is also increased accordingly.

また、隔壁1aも上下2段の切欠きスクリュー羽根25
A、25G、25B、25Dと対応して断面半円状の2
段形状となっている。
The partition wall 1a also has two upper and lower notched screw blades 25.
2 with a semicircular cross section corresponding to A, 25G, 25B, and 25D
It has a stepped shape.

なお、本機の場合、中心部の切欠きスクリュー駆動部分
も隔壁となり左右に完全に分離してしまうため、左右の
切羽室中央下部に練混ぜ切欠きスクリューコンベヤ41
をそれぞれ設け、左右の掘削土砂を中央に集め排土装置
11によって掘削土砂を排土するようにしているが、左
、右が完全に分離しているため、それぞれの部分に排土
用のスクリューコンベアを設け、別々に排土する事も可
能である。
In addition, in the case of this machine, the notched screw drive part in the center also becomes a partition and is completely separated to the left and right, so the mixing notched screw conveyor 41 is installed at the lower center of the left and right face chambers.
The left and right excavated soil is collected in the center and the excavated soil is discharged by the soil removal device 11.However, since the left and right sides are completely separated, a screw for soil discharge is installed in each part. It is also possible to install a conveyor and discharge soil separately.

なお、第16図中aは掘進方向に対し中央部において略
直角方向に延び、かつ線対称となる図形の断面形状をな
J筒体1の基準の軸、aoは掘進方向に対し略直角方向
をなす主切削具2Aの回転軸である。
In addition, in FIG. 16, a indicates the reference axis of the J cylinder 1, which extends in a direction substantially perpendicular to the central part with respect to the excavation direction and is symmetrical to the line, and ao indicates a direction substantially perpendicular to the excavation direction. This is the rotation axis of the main cutting tool 2A.

第20図ないし第24図は本発明の第5実施例を示すも
ので、この実施例では上下2本の切欠きスクリューコン
ベヤの切欠きスクリュー羽根を互い違いに、かつ内側部
分が重なるように設け、かつ切欠きスクリュー羽根に設
けた練混ぜ買26と相俟ってより効果的に掘削土砂の練
り混ぜが行えるようにした点に特徴を有している。他の
構成は前述の第4実施例と同様である。
Figures 20 to 24 show a fifth embodiment of the present invention, in which the two upper and lower notched screw blades of the notched screw conveyor are provided alternately and with their inner parts overlapping, In addition, the present invention is characterized in that the excavated soil can be mixed more effectively in conjunction with the mixing mixer 26 provided on the notched screw blade. The other configurations are similar to the fourth embodiment described above.

第26図は本発明の第6実施例を示すもので、この実施
例では、装置が掘進方向に対し正面から見た場合略直角
方向をなす軸を基準に線対称図形となる筒体1と、この
筒体1内に設けられ、かつ前記掘進方向に対し中央部か
ら両側に向かってそれぞれ略水平方向に延び、かつある
角度を持って後退する回転軸a”を中心に回転する切削
具とを備えて成る点に特徴を有している。
FIG. 26 shows a sixth embodiment of the present invention. In this embodiment, the device has a cylindrical body 1 having a line-symmetrical shape with respect to an axis that is approximately perpendicular to the excavation direction when viewed from the front. , a cutting tool that is provided in the cylinder 1 and rotates around a rotation axis a'' that extends substantially horizontally from the center toward both sides with respect to the excavation direction and retreats at a certain angle; It is characterized by comprising the following.

この場合、筒体1の上面および下面等の先端部は回転軸
a”と対応し、くの字状に形成すると好適である。また
、隔壁1aも対応して中央部からある角度を持って後退
して設けられている。
In this case, the tips of the upper and lower surfaces of the cylindrical body 1 correspond to the rotation axis a'', and are preferably formed in a dogleg shape.The partition wall 1a also corresponds to the central part at a certain angle. It is set back.

なお、この実施例は回転軸a”がある角度で後退し、よ
って切削具を構成する左右の回転ドラム4A、 4Bが
ある角度で絹目後方に傾斜して配設され、これに対応し
て筒体1の前方部が形成されている点を除けば第3実施
例と実質的に同様に構成されているため、主要部分には
同一符号を付し詳細な説明は省略する。
In this embodiment, the rotation axis a'' is moved backward at a certain angle, so that the left and right rotating drums 4A, 4B constituting the cutting tool are arranged inclined at a certain angle toward the rear of the grain. Since the structure is substantially the same as that of the third embodiment except that the front part of the cylinder 1 is formed, the main parts are given the same reference numerals and detailed explanations will be omitted.

以上のように、任意の断面を切削可能な切削具の切削部
材としては第1.第2実施例に示すように回転ドラムに
切削ビットを有する切削ビット支持部材または切削用リ
ボン状スクリュー羽根を設けたものでも良いし、より縦
長の矩形の断面を得たい場合には第3.第4実施例に示
すように上下2段の切欠きスクリューコンベヤ構成のも
のを用いても良い。更に、掘削土砂の性状によって十分
な練り混ぜを必要とする場合には第5実施例に示すよう
に上下の切欠きスクリューコンベヤの羽根を互い違いに
配したものを用いても良く、状況に応じ適宜選択される
As mentioned above, the first cutting member of the cutting tool that can cut any cross section is the cutting tool. As shown in the second embodiment, a rotary drum may be provided with a cutting bit supporting member having a cutting bit or a cutting ribbon-shaped screw blade for cutting, or if a more vertically elongated rectangular cross section is desired, the third embodiment may be used. As shown in the fourth embodiment, a notched screw conveyor having two stages, upper and lower, may be used. Furthermore, if sufficient mixing is required depending on the properties of the excavated soil, it is also possible to use an arrangement in which the blades of the upper and lower notched screw conveyors are alternately arranged, as shown in the fifth embodiment, as appropriate depending on the situation. selected.

なお、上記各実施例ではシールド工法について説明した
が岩盤掘削等セグメントを用いない掘削にも適用しくq
ることは勿論である。
In addition, although the shield method was explained in each of the above embodiments, it can also be applied to excavation that does not use segments, such as rock excavation.
Of course.

(発明の効果) 叙述のように本発明によれば、掘進方向に対し略直角方
向をなす軸を基準に線対称図形となる筒体内に設けられ
た、前記掘進方向に対し略直角方向ないしは中央部から
それぞれ斜目浚方にある角度をもって後退する回転軸を
中心に回転する切削具を介し前記筒体と対応する切削断
面を切削し横坑を築造するようにしたから、四角形、六
角形、六角形、ざらには左右、上下に長い切削断面であ
っても容易に略全断面を一挙に切断し得る。したかって
、目的に合った切削断面を効果的に選定できる利点があ
る。
(Effects of the Invention) As described above, according to the present invention, the cylindrical body is provided in a cylindrical body that has a line-symmetrical shape with respect to an axis that is substantially perpendicular to the excavation direction. Since the cross-section corresponding to the cylinder body is cut using a cutting tool that rotates around a rotating shaft that recedes at a certain angle in the diagonal dredging direction from each section, the horizontal shaft is constructed. Even if the cutting section is hexagonal or long in the left and right and up and down directions, substantially the entire cross section can be easily cut at once. Therefore, there is an advantage that a cutting cross section suitable for the purpose can be effectively selected.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図ないし第4図は本発明の第1寅施例で、第1図は
横坑築造装置の正面図、第2図は側面図、第3図は切削
具の回転機構を示す説明図、第4図は側断面図、第5図
(イ)〜(ト)は本発明による切削断面説明図、第6図
ないし第9図は本発明の第2実施例で、第6図は正面図
、第7図は側面図、第8図は切削具の回転機構を示す説
明図、第9図は側断面図、第10図ないし第15図は本
発明の第3実施例で、第10図は平面図、第11図は正
面図、第12図は第11図ALA線断面図、第13図は
第11図中C−C線断面図、第14図は第11図中C−
C線断面図、第15図は第11図中C−C線断面図、第
16図ないし第19図は本発明の第4実施例で、第16
図は正面図、第17図は第11図中C−C線断面図、第
18図は第16図中87B線断面図、第19図は第16
図中C−C線断面図、第20図ないし第25図は本発明
の第5実施例で、第20図は正面図、第21図は第20
図中A−A線断面図、第22図は第20図中B−B線断
面図、第23図は第20図中C−C5*断面図、第24
図は回転機構を示す断面説明図、第25図は第24図中
D−D線断面図、第26図は本発明の第6実施例で水平
断面図である。 第1図 第2図 〕 − 第4図 18  コア   16  15 第5図 (イ)          (ロ)        (
ハ)(へ)            (ト)第6図
Figures 1 to 4 show the first embodiment of the present invention, in which Figure 1 is a front view of the horizontal shaft construction device, Figure 2 is a side view, and Figure 3 is an explanatory diagram showing the rotation mechanism of the cutting tool. , FIG. 4 is a side sectional view, FIGS. 5(A) to 5(G) are explanatory diagrams of cut sections according to the present invention, FIGS. 6 to 9 are second embodiments of the present invention, and FIG. 6 is a front view. 7 is a side view, FIG. 8 is an explanatory diagram showing the rotation mechanism of the cutting tool, FIG. 9 is a side sectional view, and FIGS. 10 to 15 are a third embodiment of the present invention, and FIG. The figure is a plan view, FIG. 11 is a front view, FIG. 12 is a sectional view taken along line ALA in FIG. 11, FIG. 13 is a sectional view taken along line C-C in FIG.
15 is a sectional view taken along the line C-C in FIG. 11, and FIGS. 16 to 19 are the fourth embodiment of the present invention,
The figure is a front view, FIG. 17 is a sectional view taken along the line CC in FIG. 11, FIG. 18 is a sectional view taken along the line 87B in FIG.
The sectional view taken along the line C-C in the figure, and FIGS. 20 to 25 show the fifth embodiment of the present invention, FIG. 20 is a front view, and FIG.
22 is a sectional view taken along line BB in FIG. 20, FIG. 23 is a sectional view taken along C-C5* in FIG.
25 is a sectional view taken along the line DD in FIG. 24, and FIG. 26 is a horizontal sectional view showing a sixth embodiment of the present invention. Figure 1 Figure 2 - Figure 4 18 Core 16 15 Figure 5 (A) (B) (
C) (F) (G) Figure 6

Claims (9)

【特許請求の範囲】[Claims] (1)掘進方向に対し略直角方向をなす軸を基準に線対
称図形となる筒体内に設けられた、前記掘進方向に対し
略直角方向をなす回転軸を中心に回転する切削具を介し
前記筒体と対応する切削断面を切削し横坑を築造するこ
とを特徴とした横坑築造方法。
(1) The cutting tool rotates around a rotating shaft that is approximately perpendicular to the excavation direction, and is provided inside a cylinder that is line-symmetrical with respect to an axis that is approximately perpendicular to the excavation direction. A horizontal shaft construction method characterized by constructing a horizontal shaft by cutting a cut cross section corresponding to the cylindrical body.
(2)掘進方向に対し略直角方向をなす軸を基準に線対
称図形となる筒体と、この筒体内に設けられ、かつ前記
掘進方向に対し略直角方向をなす回転軸を中心に回転す
る切削具とを備えてなる横坑築造装置。
(2) A cylindrical body that has a line-symmetrical shape with respect to an axis that is substantially perpendicular to the excavation direction, and a rotating shaft that is provided within this cylindrical body and rotates around a rotation axis that is approximately perpendicular to the excavation direction. A horizontal shaft construction device comprising a cutting tool.
(3)掘進方向に対し略直角方向をなす軸を基準に線対
称図形となる筒体と、この筒体内に設けられ、かつ前記
掘進方向に対し、ある角度を持つて後退する回転軸を中
心に回転する切削具とを備えてなる横坑築造装置。
(3) A cylindrical body that has a line-symmetrical shape with respect to an axis that is substantially perpendicular to the excavation direction, and a rotating shaft that is provided inside this cylindrical body and that retreats at a certain angle with respect to the excavation direction. A horizontal shaft construction device comprising a rotating cutting tool.
(4)切削具の切削部材は、掘進方向に対し略直角方向
をなして配された回転ドラムと、その外周に放射状に突
設され、かつ先端に切削ビットが設けられた切削ビット
支持部材とを有する特許請求の範囲第2項記載の横坑築
造装置。
(4) The cutting member of the cutting tool includes a rotating drum arranged substantially perpendicular to the excavation direction, and a cutting bit support member that projects radially from the outer periphery and has a cutting bit at its tip. A horizontal shaft construction device according to claim 2, which has the following.
(5)切削具の切削部材は、掘進方向に対し略直角方向
をなして配された回転ドラムと、その外周上に設けられ
、かつ外周部に切削ビットが設けられたリボン状スクリ
ュー羽根を有する特許請求の範囲第2項記載の横坑築造
装置。
(5) The cutting member of the cutting tool has a rotating drum arranged substantially perpendicular to the excavation direction, and a ribbon-shaped screw blade provided on the outer periphery of the drum and having a cutting bit provided on the outer periphery. A horizontal shaft construction device according to claim 2.
(6)切削具の切削部材は、掘進方向に対し略直角方向
をなして配された回転ドラムと、その外周上に設けられ
、かつ外周部に切削ビットが設けられていると共に、前
記回転ドラムの軸方向に突設された練混ぜ翼を有する切
欠きスクリュー羽根とを備える特許請求の範囲第2項記
載の横坑築造装置。
(6) The cutting member of the cutting tool includes a rotating drum arranged substantially perpendicular to the excavation direction, a cutting bit provided on the outer periphery of the rotating drum, and a cutting bit provided on the outer periphery of the rotating drum. 3. The horizontal shaft construction device according to claim 2, further comprising a notched screw blade having a mixing blade protruding in the axial direction.
(7)切欠きスクリュー羽根および練混ぜ翼を有する回
転ドラムは左右に2分割され、かつその中央部に、掘進
方向に延びる軸を回転軸とし先端部にビットを有するカ
ッタースポークが設けられた中央切削具を設けて成る特
許請求の範囲第6項記載の横坑築造装置。
(7) The rotary drum having notched screw blades and mixing blades is divided into left and right halves, and a cutter spoke with a bit at the tip is installed in the center with the axis extending in the excavation direction as the rotation axis. A horizontal shaft construction device according to claim 6, which comprises a cutting tool.
(8)切削具の切削部材を構成する切欠きスクリュー羽
根および練混ぜ舅を有する回転ドラムが上下2段に設け
られ、かつ前記切欠きスクリュー羽根の内方が接するよ
うに設けられた特許請求の範囲第2項記載の横坑築造装
置。
(8) A rotary drum having notched screw blades and a mixing blade constituting a cutting member of a cutting tool is provided in upper and lower two stages, and the inner sides of the notched screw blades are provided in contact with each other. A horizontal shaft construction device according to scope 2.
(9)切削具の切削部材を構成する切欠きスクリュー羽
根および練混ぜ翼を有する回転ドラムが上下2段に設け
られ、かつ前記上下の切欠きスクリュー羽根は互い違い
に設けられた特許請求の範囲第2項記載の横坑築造装置
(9) A rotating drum having notched screw blades and mixing blades constituting a cutting member of a cutting tool is provided in upper and lower two stages, and the upper and lower notched screw blades are provided alternately. The horizontal shaft construction device according to item 2.
JP19352984A 1984-09-14 1984-09-14 Method and device for constructing horizontal pit Pending JPS6172194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19352984A JPS6172194A (en) 1984-09-14 1984-09-14 Method and device for constructing horizontal pit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19352984A JPS6172194A (en) 1984-09-14 1984-09-14 Method and device for constructing horizontal pit

Publications (1)

Publication Number Publication Date
JPS6172194A true JPS6172194A (en) 1986-04-14

Family

ID=16309585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19352984A Pending JPS6172194A (en) 1984-09-14 1984-09-14 Method and device for constructing horizontal pit

Country Status (1)

Country Link
JP (1) JPS6172194A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0594394U (en) * 1991-08-12 1993-12-24 株式会社奥村組 Rectangular section tunnel excavator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53118833A (en) * 1977-03-24 1978-10-17 Nippon Telegraph & Telephone Shield excavator
JPS54146433A (en) * 1978-05-09 1979-11-15 Ishikawajima Harima Heavy Ind Tunnel excavator
JPS5947792B2 (en) * 1979-09-03 1984-11-21 大館家具木工協同組合 Sliding door/sliding door device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53118833A (en) * 1977-03-24 1978-10-17 Nippon Telegraph & Telephone Shield excavator
JPS54146433A (en) * 1978-05-09 1979-11-15 Ishikawajima Harima Heavy Ind Tunnel excavator
JPS5947792B2 (en) * 1979-09-03 1984-11-21 大館家具木工協同組合 Sliding door/sliding door device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0594394U (en) * 1991-08-12 1993-12-24 株式会社奥村組 Rectangular section tunnel excavator

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