JPS6343559B2 - - Google Patents
Info
- Publication number
- JPS6343559B2 JPS6343559B2 JP58193396A JP19339683A JPS6343559B2 JP S6343559 B2 JPS6343559 B2 JP S6343559B2 JP 58193396 A JP58193396 A JP 58193396A JP 19339683 A JP19339683 A JP 19339683A JP S6343559 B2 JPS6343559 B2 JP S6343559B2
- Authority
- JP
- Japan
- Prior art keywords
- circumferential
- segment
- shield machine
- arm
- wire
- 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
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Description
【発明の詳細な説明】
（技術分野）
本発明は、既設トンネルの一部を拡大する際に
用いられるエレクター付き円周シールド機に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a circumferential shield machine with an erector used when enlarging a part of an existing tunnel.
（従来技術）
既設トンネルの一部を拡大するための拡大シー
ルド工法が既に提案されている。この工法は、第
１図に示すように通常径トンネル１を形成してい
る一次セグメント２の一部を取除いて環状の空洞
３を掘削形成し、ここを発進基地として中に拡大
シールド機４を組立て、これを拡大予定区域５に
沿つて掘進させて、第２図のように拡大トンネル
６を形成するものである。なお、４ａは刃、４ｂ
は推進ジヤツキ、４ｃはシールである。(Prior Art) An expansion shield method for expanding a part of an existing tunnel has already been proposed. As shown in Fig. 1, this construction method involves removing a part of the primary segment 2 that forms the normal diameter tunnel 1, excavating and forming an annular cavity 3, and using this as a starting point, an expanding shield machine 4 is placed inside. are assembled and excavated along the planned expansion area 5 to form an expansion tunnel 6 as shown in FIG. In addition, 4a is the blade, 4b
is a propulsion jack, and 4c is a seal.
また、前記空洞３を能率的に形成するための円
周シールド工法も既に提案されている。この工法
では、第３図に示すような円周シールド機７が一
次セグメント２の除去部の端面に沿つて円周方向
に掘進される。円周シールド機７は、対向状態に
間を離して配設された一対の扇形の山留め用鋼材
８，９と、これらの鋼材の幅広端部を連結する外
周板１０とを備えている。前記山留め用鋼材８，
９の間隔は前記空洞３の幅に対応し、前記外周板
１０は空洞３の外径を設定し、山留め用鋼材８，
９の幅狭端部は空洞３の内径すなわち一次セグメ
ント２の開口径に対応する。円周シールド機７も
推進ジヤツキ（図示省略）で推進する。 Further, a circumferential shield construction method for efficiently forming the cavity 3 has already been proposed. In this construction method, a circumferential shield machine 7 as shown in FIG. 3 excavates in the circumferential direction along the end face of the removed portion of the primary segment 2. The circumferential shielding machine 7 includes a pair of fan-shaped ridge-fastening steel members 8 and 9 that are spaced apart from each other, and an outer circumferential plate 10 that connects the wide ends of these steel members. Said mountain retaining steel material 8,
9 corresponds to the width of the cavity 3, the outer peripheral plate 10 sets the outer diameter of the cavity 3, and the steel members 8,
The narrow end of 9 corresponds to the inner diameter of the cavity 3, ie the opening diameter of the primary segment 2. The circumferential shield machine 7 is also propelled by a propulsion jack (not shown).
上記した円周シールド機７を円周方向に掘進さ
せるときには、その後で順次円周セグメントが取
り付けられるが、この円周セグメントは、推進ジ
ヤツキを取外した状態の円周シールド機７とほぼ
同一の断面コ字形の形状のものである。 When the above-mentioned circumferential shield machine 7 is made to excavate in the circumferential direction, circumferential segments are sequentially attached afterwards, but these circumferential segments have almost the same cross section as the circumferential shield machine 7 with the propulsion jack removed. It is U-shaped.
（発明の目的）
本発明は、円周シールド機の掘進の際、その後
に円周セグメントを順次組立てることを容易にす
るエレクター付き円周シールド機を提供すること
を目的とする。(Object of the Invention) An object of the present invention is to provide a circumferential shielding machine with an erector that facilitates sequential assembly of circumferential segments after the circumferential shielding machine excavates.
（発明の要旨）
本発明は、円周シールド機の外周板の内面側
に、セグメント吊下用ワイヤの誘導装置と、セグ
メントに作用するアームと、該アームの駆動装置
とを設けることにある。(Summary of the Invention) The present invention is to provide a guide device for a wire for suspending a segment, an arm that acts on the segment, and a drive device for the arm on the inner surface of the outer peripheral plate of a circumferential shielding machine.
（実施例）
以下、第４図〜第１３図に基づいて本発明を説
明する。(Example) The present invention will be described below based on FIGS. 4 to 13.
第４〜９図は第１実施例を示し、この円周シー
ルド機２０は、従来のものと同様、対向状態に離
された一対の扇形の山留め用鋼板２１，２２と、
これらの鋼板の幅広端部２１ａ，２２ａを連結す
る外周板２３とからなる本体２０Ａ、およびこれ
に取付けた推進ジヤツキ（図示せず）を備えてい
る。なお、山留め用鋼板２１，２２および外周板
２３は前端側に掘削刃２４を形成されている。 4 to 9 show a first embodiment, and this circumferential shielding machine 20 has a pair of fan-shaped mountain retaining steel plates 21 and 22 separated from each other in a facing state, similar to the conventional one.
The main body 20A is composed of a peripheral plate 23 connecting the wide ends 21a and 22a of these steel plates, and a propulsion jack (not shown) attached to the main body 20A. Note that the retaining steel plates 21 and 22 and the outer circumferential plate 23 have a digging blade 24 formed on the front end side.
本発明によると、前記外周板２３の内面にはエ
レクター２５が設けられるが、このエレクター２
５は、円周セグメント２０ａ（第６図）を吊下す
るワイヤ２６を案内するよう、前記外周板２３の
内面に取付けられたシーブ２７を有するワイヤの
誘導装置２８と、前記ワイヤ２６に吊下された円
周セグメント２０ａに係合するアーム２９と、該
アーム２９を操作して前記ワイヤ２６に吊下され
た円周セグメント２０ａを前記外周板２３の内側
の所定位置へ組付ける油圧ジヤツキのような駆動
装置３０とから構成されている。前記円周セグメ
ント２０ａは両側の側板２０ｂと中央の外周板２
０ｃからなり、側板２０ｂはこの実施例では予め
外され、後で組付けられる。 According to the present invention, an erector 25 is provided on the inner surface of the outer peripheral plate 23.
5 is a wire guiding device 28 having a sheave 27 attached to the inner surface of the outer circumferential plate 23 to guide the wire 26 suspending the circumferential segment 20a (FIG. 6); an arm 29 that engages with the circumferential segment 20a, and a hydraulic jack that operates the arm 29 to assemble the circumferential segment 20a suspended from the wire 26 to a predetermined position inside the outer circumferential plate 23; It is composed of a drive device 30. The circumferential segment 20a includes side plates 20b on both sides and a central outer circumferential plate 2.
In this embodiment, the side plate 20b is removed in advance and assembled later.
上記エレクター付き円周シールド機２０の作用
を説明すると、セグメント２は空洞３内の下半分
の位置では上から下へ降ろすだけで組付けること
ができるので、前記エレクター２５は空洞３の上
半分の位置で用いられる。 To explain the operation of the circumferential shield machine 20 with the erector, the segment 2 can be assembled in the lower half of the cavity 3 by simply lowering it from top to bottom. Used in position.
したがつて、第７図のように円周シールド機２
０が上方に到達したとき、ワイヤ２６を介して円
周セグメント２０ａが吊り上げられる。次いで、
駆動装置３０を作動させるとアーム２９がセグメ
ント２の穴ｈに係合し（第８図）、最終的に第９
図のように既設のセグメント２と合致させる。こ
の状態で、両方のセグメント２を人為的に連結し
て、アーム２９を元の第６図の状態に戻す。以
下、同手順を繰り返す。 Therefore, as shown in Fig. 7, the circumferential shield machine 2
0 reaches the top, the circumferential segment 20a is lifted up via the wire 26. Then,
When the drive device 30 is actuated, the arm 29 engages with the hole h of the segment 2 (Fig. 8), and finally the 9th
Match it with the existing segment 2 as shown in the figure. In this state, both segments 2 are artificially connected to return the arm 29 to its original state as shown in FIG. 6. Hereafter, repeat the same procedure.
第１０〜１３図は第２実施例を示す。この実施
例では、前記誘導装置２８がワイヤ２６を自動操
作する電動ウインチ３１を備えている。また、駆
動装置３０はアーム２９を直線的および曲線的に
より複雑に移動させる構成となつている。このエ
レクター２５も、第９，１１，１２図のように、
第１実施例の場合と同様にセグメント２を組付け
るが、ワイヤ２６を引つ張る手間が省ける。 10 to 13 show a second embodiment. In this embodiment, the guiding device 28 includes an electric winch 31 that automatically operates the wire 26. Further, the drive device 30 is configured to move the arm 29 in a more complicated manner both linearly and curved. This erector 25 is also as shown in Figures 9, 11, and 12.
Although the segments 2 are assembled in the same manner as in the first embodiment, the effort of pulling the wire 26 can be saved.
（発明の効果）
以上のように、本発明によると、通常のセグメ
ントを順次装填しながら掘進し得るエレクター付
き円周シールド機が得られる。(Effects of the Invention) As described above, according to the present invention, a circumferential shield machine with an erector that can excavate while sequentially loading normal segments can be obtained.
第１図および第２図は、既提案の拡大シールド
工法の概略断面図、第３図は既提案の円周シール
ド機の要部斜視図、第４図は本発明の一実施例に
係る円周シールド機の正面図、第５図は第４図の
左側面断面図、第６図は円周セグメントの斜視
図、第７図〜第９図は第５図の円周シールド機の
動作説明図、第１０図は、他の実施例の要部断面
図、第１１図は第１０図の右側面図、第１２図〜
第１３図は第１０図の実施例の動作説明図であ
る。
１……通常径トンネル、２……一次セグメン
ト、３……空洞、２０……円周シールド機、２０
Ａ……本体、２０ａ……円周セグメント、２０ｂ
……側板、２０ｃ……外周板、２１，２２……山
留め用鋼板、２３……外周板、２４……掘削刃、
２５……エレクター、２６……ワイヤ、２７……
シーブ、２８……誘導装置、２９……アーム、３
０……駆動装置、３１……電動ウインチ。
1 and 2 are schematic cross-sectional views of the previously proposed enlarged shield method, FIG. 3 is a perspective view of essential parts of the previously proposed circumferential shield machine, and FIG. 4 is a circle according to an embodiment of the present invention. A front view of the circumferential shield machine, FIG. 5 is a left side sectional view of FIG. 4, FIG. 6 is a perspective view of the circumferential segment, and FIGS. 7 to 9 are explanations of the operation of the circumferential shield machine of FIG. 5. 10 is a sectional view of the main part of another embodiment, FIG. 11 is a right side view of FIG. 10, and FIG.
FIG. 13 is an explanatory diagram of the operation of the embodiment of FIG. 10. 1...Normal diameter tunnel, 2...Primary segment, 3...Cavity, 20...Circumferential shield machine, 20
A...Body, 20a...Circumferential segment, 20b
...Side plate, 20c...Outer plate, 21, 22...Steel plate for mountain retaining, 23...Outer plate, 24...Drilling blade,
25... Erector, 26... Wire, 27...
Sheave, 28... Guidance device, 29... Arm, 3
0... Drive device, 31... Electric winch.
Claims (1)
の山留め用板材と、これらの板材の幅広端部を連
結する外周板とからなる本体に推進ジヤツキを取
付けた円周シールド機であつて、前記外周板の内
面側には、セグメントを吊下げするワイヤの誘導
装置と、前記ワイヤに吊下げされたセグメントに
係合するアームと、該アームの駆動装置とが設け
られていることを特徴とするエレクター付き円周
シールド機。1. A circumferential shield machine with a propulsion jack attached to the main body, which consists of a pair of fan-shaped mountain retaining plates arranged facing each other at a distance, and an outer circumferential plate connecting the wide ends of these plates. , the inner surface of the outer circumferential plate is provided with a guide device for a wire that suspends the segment, an arm that engages with the segment suspended from the wire, and a drive device for the arm. A circumferential shield machine with an erector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58193396A JPS6088800A (en) | 1983-10-18 | 1983-10-18 | Circumferential shield machine with erecter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58193396A JPS6088800A (en) | 1983-10-18 | 1983-10-18 | Circumferential shield machine with erecter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6088800A JPS6088800A (en) | 1985-05-18 |
| JPS6343559B2 true JPS6343559B2 (en) | 1988-08-31 |
Family
ID=16307245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58193396A Granted JPS6088800A (en) | 1983-10-18 | 1983-10-18 | Circumferential shield machine with erecter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6088800A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0239749U (en) * | 1988-09-13 | 1990-03-16 |
-
1983
- 1983-10-18 JP JP58193396A patent/JPS6088800A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0239749U (en) * | 1988-09-13 | 1990-03-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6088800A (en) | 1985-05-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |