JPH03290593A - Multiple shield tunneling machine - Google Patents
Multiple shield tunneling machineInfo
- Publication number
- JPH03290593A JPH03290593A JP9037290A JP9037290A JPH03290593A JP H03290593 A JPH03290593 A JP H03290593A JP 9037290 A JP9037290 A JP 9037290A JP 9037290 A JP9037290 A JP 9037290A JP H03290593 A JPH03290593 A JP H03290593A
- Authority
- JP
- Japan
- Prior art keywords
- cutter head
- cutter
- shield excavator
- diametral
- earth
- 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
- 230000005641 tunneling Effects 0.000 title abstract 2
- 239000004576 sand Substances 0.000 abstract description 10
- 238000005192 partition Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、少なくとも２個のカッタヘッドを使用して、
略長円形断面の孔を掘削する多連式シールド掘削機に関
するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention uses at least two cutter heads to
This invention relates to a multiple shield excavator that excavates a hole with a substantially oval cross section.
（従来の技術）
従来の多連式シールド掘削機を第６．７図により説明す
ると、（１）が断面長円形のシールド掘削機本体、（２
）が同シールド掘削機本体（１）の前部中央に回転可能
に取付けた先行の大径カッタヘッド。(Prior Art) A conventional multiple shield excavator will be explained with reference to Fig. 6.7. (1) is the shield excavator body with an oval cross section, (2)
) is the leading large-diameter cutter head rotatably attached to the front center of the shield excavator body (1).
（３） （４）が上記シールド掘削機本体（１）の前部
左右に回転可能に取付けた後行の中径カッタヘッド。(3) (4) is a trailing medium-diameter cutter head rotatably attached to the front left and right sides of the shield excavator main body (1).
（５）がシールド掘削機本体（１）のスキンプレートで
、同各カッタヘッド（２） （３） （４）をシールド
掘削機本体（１）前部に横並びに且つ互いの隣接部が正
面からみて重合する状態に配設しており、これらのカッ
タヘッド（２） （’３） （４）を回転させるととも
に。(5) is the skin plate of the shield excavator main body (1), and the cutter heads (2), (3), and (4) are placed side by side on the front of the shield excavator main body (1), and their adjacent parts are facing from the front. These cutter heads (2) ('3) (4) are rotated.
シールド掘削機本体（１）を前進させて、同各カッタヘ
ッド前方の土砂を断面略長円形に掘削する。The shield excavator main body (1) is advanced to excavate the earth and sand in front of each cutter head in a substantially oval cross section.
（発明が解−決しようとする課題）
前記第６，７図に示す多連式シールド掘削機では、各カ
ッタヘッド（２） （３） （４）がシールド掘削機本
体（１）前部に横並びに且つ互いの隣接部が正面からみ
て重合する状態に配設されており、隣接部の上下には、
カッタヘッドがないので（第６図の平行斜線部参照）、
この部分のスキンプレート（５）がカッタヘッド（２）
（３） （４）により掘削されない隣接部上下の未掘
削土砂に直接当接し、硬い地盤を掘削するときには、異
常に大きな推力が必要になって、断面長円形のトンネル
を掘削できなくなる場合がある。(Problem to be Solved by the Invention) In the multiple shield excavator shown in FIGS. 6 and 7, each cutter head (2) (3) (4) is attached to the front of the shield excavator body (1) They are arranged side by side and in such a way that their adjacent parts overlap when viewed from the front, and above and below the adjacent parts,
Since there is no cutter head (see the parallel shaded area in Figure 6),
This part of the skin plate (5) is the cutter head (2)
(3) When excavating hard ground that comes into direct contact with the unexcavated earth above and below the adjacent area that is not excavated due to (4), an abnormally large thrust is required, which may make it impossible to excavate a tunnel with an oval cross section. .
本発明は前記の問題点に鑑み提案するものであり、その
目的とする処は、地盤が硬くても、断面略長円形のトン
ネルを円滑に掘削できる多連式シールド掘削機を提供し
ようとする点にある。The present invention has been proposed in view of the above-mentioned problems, and its purpose is to provide a multiple shield excavator that can smoothly excavate a tunnel with an approximately oval cross section even if the ground is hard. At the point.
（課題を解決するための手段）
上記の目的を達成するために９本発明は、シールド掘削
機本体前′部に横並びに且つ互いの隣接部が正面からみ
て重合する状態に取付けられた少なくとも２個のカッタ
ヘッドを回転させるとともに。(Means for Solving the Problems) In order to achieve the above object, the present invention provides at least two shields installed in the front part of the shield excavator main body side by side and in a state where mutually adjacent parts overlap when viewed from the front. Along with rotating the cutter head.
シールド掘削機本体を前進させて、略長円形断面の孔を
掘削する多連式シールド掘削機において。In a multiple shield excavator that excavates a hole with an approximately oval cross section by advancing the shield excavator body.
前記各カッタヘッド隣接部上下の機体前部の部分に、小
径カッタヘッドと同小径カッタヘッドを回転させるの回
転駆動装置とこれらを横行させる横行用駆動装置とを有
するスライドカッタ装置を設けている。A slide cutter device having a small-diameter cutter head, a rotation drive device for rotating the small-diameter cutter head, and a traverse drive device for traversing the small-diameter cutter head is provided at the front portion of the machine body above and below the area adjacent to each of the cutter heads.
（作用）
本発明の多連式シールド掘削機は前記のように構成され
ており、シールド掘削機本体前部に横並びに且つ互いの
隣接部が正面からみて重合する状態に取付けられた少な
くとも２個のカッタヘッドを回転させるとともに、シー
ルド掘削機本体を前進させて、略長円形断面の孔を掘削
するときに。(Function) The multiple shield excavator of the present invention is constructed as described above, and includes at least two shield excavators attached to the front of the main body of the shield excavator side by side and with their adjacent parts overlapping when viewed from the front. When drilling a hole with an approximately oval cross section by rotating the cutter head and moving the shield excavator body forward.
各カッタヘッドの隣接部上下の機体前部に設けた各スラ
イドカッタ装置の横行駆動装置を駆動し。Drives the traverse drive device of each slide cutter device installed at the front of the machine above and below the adjacent portion of each cutter head.
小径カッタヘッドを横行させて、これを所定位置にセッ
トする一方、同小径カッタヘッドを回転させて、上記横
並びに配設した各カッタヘッドにより掘削されない隣接
部上下の未掘削土砂を掘削する。While the small-diameter cutter head is moved sideways and set at a predetermined position, the small-diameter cutter head is rotated to excavate the unexcavated earth and sand above and below the adjacent portions that are not excavated by the cutter heads arranged side by side.
（実施例）
次に本発明の多連式シールド掘削機を第１図乃至第５図
に示す一実施例により説明すると、（６）がシールド掘
削機本体、 （２１）が同シールド掘削機本体（６）の
スキンプレー１− 、 （７） （８）が同スキンプレ
ー ） （２１）内周面に固定した隔壁、（９）が先行
の大径カッタヘッド、 （９ａ）が同大径カッタヘッド
（９）の駆動軸で、同駆動軸（９ａ）の後部が上記隔壁
（７） （８）の中央部に回転可能に取付けられている
。また（１２）が上記隔壁（７）の中央部に取付けた回
転駆動装置で、同回転駆動装置（１２）の回転を駆動軸
（９ａ）に伝えて、同駆動軸（９ａ）と大径カッタヘッ
ド（９）とを回転させるようになっている。また（１０
） （１１）が後行の中径カッタヘッド、 （１０ａ）
（ｌｌａ）が同中径カッタヘッド（１０） （１１）
の駆動軸で、同駆動軸（１０ａ） （ｌｌａ）の後部が
上記隔壁（７） （８）の左右両側部に回転可能に取付
けられている。また（１３） （１４）が上記隔壁（７
）の左右両側部に取付けた回転駆動装置で、同回転駆動
装置（１３） （１４）の回転を駆動軸（１０ａ） （
ｌｌａ）に伝えて、同駆動軸（１０ａ） （ｌｌａ）と
中径カッタヘッド（１０） （１１）とを回転させるよ
うになっている。また（１５）が上記大径カッタヘッド
（９）の前面に放射状に設けたカッタスリット、 （１
６）が同大径カッタヘッド（９）の前面に放射状に設け
た多数のカッタビット、 （１７）が上記中径カッタヘ
ッド（１０） （１１）の前面に放射状に設けたカッタ
スリット（１８）が同中径カッタヘッド（１０） （１
１）の前面に放射状に設けた多数のカッタピッ） 、
（１９）が上記隔壁（７）の後方のシールド掘削機本体
（６）内に設けたシールドジヤツキ、 （２０）がセグ
メント、 （２２）がガイド孔（２２ａ）を有するガイ
ドプレートで、同ガイドプレート（２２）が上記カッタ
ヘッド（９） （１０） （１１）隣接部上下の上記隔
壁（８）部分にスキンプレート（２１）の傾斜に沿って
若干傾斜した横向きの状態に固定されており、同ガイド
プレート（２２）が合計４個ある。また（２３）が回転
軸で、同回転軸（２３）が上記各ガイドプレート（２２
）のガイド孔（２２ａ）に２個ずつ摺動自在に嵌挿され
ている。また（２７）が２個ずつの回転軸（２３）の後
部を連結するアーム、 （２Ｂ）が同アーム（２７）の
軸嵌挿孔と上記回転軸（２３）との間に介装したブツシ
ュ、 （２９）が上記隔壁（８）に固定したブラケッ）
、 （３０）がジヤツキ（横行用駆動装置）で、同ジ
ヤツキ（３０）の両端部がビン（３１）（３２）を介し
てアーム（２７）とブラケット（２９）とに枢支されて
いる。また（２５）が上記各回転軸（２３）の前部に固
定した小径カッタヘッド、 （２４）が同小径カッタヘ
ッド（２５）の前面に設けたカッタビット。(Embodiment) Next, the multiple shield excavator of the present invention will be explained using an embodiment shown in FIGS. 1 to 5. (6) is the main body of the shield excavator, and (21) is the main body of the shield excavator. (6) skin play 1-, (7) (8) is the same skin play) (21) bulkhead fixed to the inner peripheral surface, (9) is the leading large diameter cutter head, (9a) is the same large diameter cutter The drive shaft (9a) of the head (9) has its rear end rotatably attached to the center of the partition walls (7) and (8). Further, (12) is a rotary drive device attached to the center of the partition wall (7), which transmits the rotation of the rotary drive device (12) to the drive shaft (9a), and connects the drive shaft (9a) and the large diameter cutter. The head (9) is rotated. Also (10
) (11) is the trailing medium diameter cutter head, (10a)
(lla) is the same medium diameter cutter head (10) (11)
The rear portions of the drive shafts (10a) and (lla) are rotatably attached to the left and right sides of the partition walls (7) and (8). Moreover, (13) and (14) are the partition walls (7
) is a rotary drive device attached to the left and right sides of the drive shaft (10a) (
lla) to rotate the drive shafts (10a) (lla) and the medium diameter cutter heads (10) (11). Further, (15) is a cutter slit provided radially on the front surface of the large diameter cutter head (9), (1
6) is a large number of cutter bits provided radially on the front surface of the large-diameter cutter head (9), and (17) is a cutter slit (18) provided radially on the front surface of the medium-diameter cutter head (10) and (11). is the same medium diameter cutter head (10) (1
1) Numerous cutter pins installed radially on the front surface of the
(19) is a shield jack installed in the shield excavator main body (6) behind the bulkhead (7), (20) is a segment, and (22) is a guide plate having a guide hole (22a). The plate (22) is fixed to the partition wall (8) above and below the adjacent portion of the cutter head (9) (10) (11) in a slightly inclined horizontal state along the inclination of the skin plate (21), There are a total of four guide plates (22). In addition, (23) is a rotating shaft, and the rotating shaft (23) is the guide plate (22).
) are slidably inserted into the guide holes (22a). In addition, (27) is an arm that connects the rear parts of two rotating shafts (23), and (2B) is a bush that is interposed between the shaft insertion hole of the arm (27) and the rotating shaft (23). , (29) is the bracket fixed to the partition wall (8))
, (30) is a jack (traversing drive device), and both ends of the jack (30) are pivotally supported by an arm (27) and a bracket (29) via pins (31) and (32). Further, (25) is a small diameter cutter head fixed to the front part of each rotating shaft (23), and (24) is a cutter bit provided on the front surface of the same small diameter cutter head (25).
（２６） （２６）が上記アーム（２７）に取付けた回
転駆動装置で、ジヤツキ（３０）を伸縮方向に作動して
、アーム（２７）と回転駆動装置（２６） （２６）と
回転軸（２３） （２３）とカッタヘッド（２５） （
２５）とをガイドプレート（２２）のガイド孔（２２ａ
）に沿って横行させるようになっている。また回転駆動
装置（２６） （２６）を駆動して。(26) (26) is a rotary drive device attached to the arm (27), which operates the jack (30) in the extending and contracting direction to connect the arm (27), the rotary drive device (26), and the rotation shaft ( 23) (23) and cutter head (25) (
25) and the guide hole (22a) of the guide plate (22).
). Also, drive the rotary drive device (26) (26).
回転軸（２３） （２３）とカッタヘッド（２５） （
２５）とを回転させるようになっている。なお本実施例
では、上記各部分（２２）〜（３２）によりスライドカ
ッタ装置が構成されている。Rotating shaft (23) (23) and cutter head (25) (
25). In this embodiment, each of the above-mentioned parts (22) to (32) constitutes a slide cutter device.
次に前記第１図乃至第５図に示す多連式シールド掘削機
の作用を具体的に説明する。シールドジヤツキ（１９）
を伸長方向に作動させ、その後端部をセグメント（２０
）の前端面に押し当てて、シールド掘削機本体（６）を
前進させるとともに１回転駆動装置（１２） （１３）
（１４）を駆動して、その回転を先行の大径カッタヘ
ッド（９）と後行の中径カッタヘッド（１０） （１１
）とに伝え、これらのカッタヘッド（９）（１０） （
１１）を回転させて、同各カッタヘッド前方の土砂を断
面略長円形に掘削する。このとき、先行の大径カッタヘ
ッド（９）により掘削した土砂をカッタスリット（１５
）からチャンバー（Ａ）内へ排出する。また後行の中径
カッタヘッド（１０） （１１）により掘削した土砂を
カッタスリット（１７） （１７）からチャンバー（Ａ
）内へ排出する。またこのとき、カッタヘッド（９）
（１０） （１１）の隣接部上下のスキンプレー） （
２１）部分にある合計４個のスライドカッタ装置のジヤ
ツキ（３０）を伸縮方向に作動させ、アーム（２７）と
回転駆動装置（２６） （２６）と回転軸（２３） （
２３）とカッタヘッド（２５） （２５）とをガイドプ
レート（２２）のガイド孔（２２ａ）に沿い横行させて
、カッタヘッド（２５） （２５）を所定位置にセット
する一方、上記４個所の回転駆動装置（２６） （２６
）を駆動して、その回転を小径カッタヘッド（２５）
（２５）に伝え、同各小径カッタヘッド（２５） （２
５）を回転させて、各カッタヘッド（９） （１０）
（１１）の隣接部上下のスキンプレート（２１）部分前
方の土砂を掘削する。Next, the operation of the multiple shield excavator shown in FIGS. 1 to 5 will be explained in detail. Shield Jatsuki (19)
is actuated in the extension direction, and the rear end is segmented (20
) to advance the shield excavator main body (6) and rotate the drive device (12) (13) once.
(14) to rotate the leading large-diameter cutter head (9) and the trailing medium-diameter cutter head (10) (11).
) and these cutter heads (9) (10) (
11) is rotated to excavate the earth and sand in front of each cutter head in a substantially oval cross section. At this time, the earth and sand excavated by the preceding large-diameter cutter head (9) are removed through the cutter slit (15).
) into the chamber (A). In addition, the earth and sand excavated by the following medium-diameter cutter heads (10) (11) are transferred from the cutter slits (17) (17) to the chamber (A
) is discharged into the body. Also at this time, the cutter head (9)
(10) (Skin play above and below the adjacent part of (11))
21) The jacks (30) of the slide cutter device (4 in total) are operated in the extending and retracting direction, and the arm (27), rotation drive device (26) (26), and rotation shaft (23) (
23) and the cutter head (25) (25) are moved along the guide hole (22a) of the guide plate (22) to set the cutter head (25) (25) at a predetermined position. Rotary drive device (26) (26
), and its rotation is transmitted to the small diameter cutter head (25).
(25) and each small diameter cutter head (25) (2
5) Rotate each cutter head (9) (10)
Excavate the earth and sand in front of the skin plate (21) above and below the adjacent area of (11).
（発明の効果）
本発明の多連式シールド掘削機は前記のようにシールド
掘削機本体前部に横並びに且つ互いの隣接部が正面から
みて重合する状態に取付けられた少なくとも２個のカッ
タヘッドを回転させるとともに、シールド掘削機本体を
前進させて、略長円形断面の孔を掘削するときに、各カ
ッタヘッドの隣接部上下の機体前部に設けた各スライド
カッタ装置の横行駆動装置を駆動し、小径カッタヘッド
を横行させて、所定位置にセットする一方、同小径カッ
タヘッドを回転させて、上記機並びに配設した各カッタ
ヘッドにより掘削されない隣接部上下の未掘削土砂を掘
削するので、地盤が硬くても。(Effects of the Invention) As described above, the multiple shield excavator of the present invention has at least two cutter heads attached to the front part of the main body of the shield excavator side by side and with their adjacent parts overlapping when viewed from the front. When the shield excavator body is rotated and the shield excavator body is advanced to excavate a hole with an approximately oval cross section, the traverse drive device of each slide cutter device installed at the front of the machine above and below the adjacent area of each cutter head is driven. Then, while the small diameter cutter head is moved sideways and set in a predetermined position, the same small diameter cutter head is rotated to excavate the unexcavated earth and sand above and below the adjacent area that is not excavated by the above machine and each installed cutter head. Even if the ground is hard.
断面略長円形のトンネルを円滑に掘削できる効果がある
。This has the effect of making it possible to smoothly excavate a tunnel with an approximately oval cross section.
第１図は本発明に係わる多連式シールド掘削機の一実施
例を示す正面図、第２図はその継断側面図、第３図は第
１図の矢視■−■線に沿う縦断側面図、第４図は第２図
の矢視ＴＶ−ＩＶ線に沿う縦断背面図、第５図は第４図
の矢視Ｖ−Ｖ線に沿う横断平面図１第６図は従来の多連
式シールド掘削機を示す正面図、第７図はその縦断側面
図である。
（６）・・・シールド掘削機本体、 （９） （１０）
（１１）・・・カッタヘッド、 （２５） ・・・
小径カッタヘッド。
（２６）・・・回転駆動装置、 （３０） ・・・横
行用駆動装置。Fig. 1 is a front view showing an embodiment of a multiple shield excavator according to the present invention, Fig. 2 is a joint cross-sectional side view thereof, and Fig. 3 is a longitudinal section taken along the arrow ■-■ line in Fig. 1. 4 is a longitudinal cross-sectional rear view taken along the arrow TV-IV line in FIG. 2, and FIG. 5 is a cross-sectional plan view taken along the arrow V-V line in FIG. FIG. 7 is a front view showing the linked shield excavator, and FIG. 7 is a longitudinal side view thereof. (6)...Shield excavator body, (9) (10)
(11)...Cutter head, (25)...
Small diameter cutter head. (26)...Rotary drive device, (30)...Traverse drive device.
Claims (1)
正面からみて重合する状態に取付けられた少なくとも２
個のカッタヘッドを回転させるとともに、シールド掘削
機本体を前進させて、略長円形断面の孔を掘削する多連
式シールド掘削機において、前記各カッタヘッド隣接部
上下の機体前部の部分に、小径カッタヘッドと同小径カ
ッタヘッドを回転させる回転駆動装置とこれらを横行さ
せる横行用駆動装置とを有するスライドカッタ装置を設
けたことを特徴とする多連式シールド掘削機。At least two shields installed at the front of the shield excavator body side by side and with adjacent parts overlapping each other when viewed from the front.
In a multiple shield excavator that excavates a hole having an approximately oval cross section by rotating the cutter heads and advancing the shield excavator main body, the front part of the machine body above and below the adjacent part of each cutter head is A multiple shield excavator characterized by being provided with a slide cutter device having a small-diameter cutter head, a rotation drive device for rotating the same small-diameter cutter head, and a traverse drive device for traversing the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2090372A JPH0768867B2 (en) | 1990-04-06 | 1990-04-06 | Multiple shielded excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2090372A JPH0768867B2 (en) | 1990-04-06 | 1990-04-06 | Multiple shielded excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03290593A true JPH03290593A (en) | 1991-12-20 |
| JPH0768867B2 JPH0768867B2 (en) | 1995-07-26 |
Family
ID=13996733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2090372A Expired - Fee Related JPH0768867B2 (en) | 1990-04-06 | 1990-04-06 | Multiple shielded excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0768867B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0227093A (en) * | 1988-07-15 | 1990-01-29 | Hazama Gumi Ltd | All section type excavating machine |
| JPH0235190A (en) * | 1988-04-19 | 1990-02-05 | Yoshiji Matsumoto | Multicore-parallel optional section shield machine |
-
1990
- 1990-04-06 JP JP2090372A patent/JPH0768867B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0235190A (en) * | 1988-04-19 | 1990-02-05 | Yoshiji Matsumoto | Multicore-parallel optional section shield machine |
| JPH0227093A (en) * | 1988-07-15 | 1990-01-29 | Hazama Gumi Ltd | All section type excavating machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0768867B2 (en) | 1995-07-26 |
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