JPS59185297A - Ground detecting apparatus in shield drilling machine - Google Patents
Ground detecting apparatus in shield drilling machineInfo
- Publication number
- JPS59185297A JPS59185297A JP6140283A JP6140283A JPS59185297A JP S59185297 A JPS59185297 A JP S59185297A JP 6140283 A JP6140283 A JP 6140283A JP 6140283 A JP6140283 A JP 6140283A JP S59185297 A JPS59185297 A JP S59185297A
- Authority
- JP
- Japan
- Prior art keywords
- cutter head
- rod
- ground
- shield
- rock
- 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
Links
Landscapes
- 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】
本発明はシールド掘進機における地山検出装置に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rock detection device for a shield excavator.
通常、第１図及び第２図に示すように、シールド掘進機
（１）のシールド本体（２）前部にはカッタヘッド（３
）が設けられてお９、このカッタヘッド（３）の回転に
よって地山の掘削が行なわれている。ところで、カッタ
ヘッド（３）により地山を掘削する場合、図面の斜線部
（イ）にて示すように、カッタヘッド（３）の周囲特に
上方部地山がゆるみ、くずれ落ちることがあｐ、大きく
くずれるとトンネル上方の地盤全体がゆるむという危険
がある。そこで、従来、シールド本体（２）上部に、そ
の上方の地山の・ゆるみを検出するために、荷重計を有
する地山検出装置（４）が設けられていた。しかし、こ
のものによると、地山のゆるみを検出できるのは、シー
ルド本体（２）の上方部だけで、他の周囲部分の地山の
ゆるみ状態を検出することができないという欠点があっ
た。Usually, as shown in Figures 1 and 2, a cutter head (3
) is provided 9, and the earth is excavated by rotation of this cutter head (3). By the way, when excavating the ground with the cutter head (3), the ground around the cutter head (3), particularly in the upper part, may loosen and fall, as shown in the shaded area (A) in the drawing. If it collapses significantly, there is a risk that the entire ground above the tunnel will become loose. Therefore, conventionally, a ground detection device (4) having a load meter has been provided above the shield body (2) in order to detect looseness of the ground above the shield body (2). However, according to this method, the looseness of the ground can only be detected in the upper part of the shield body (2), and the looseness of the ground in other surrounding areas cannot be detected.
また、シールド本体の周囲複数箇所に上記地山検出装置
を設けるようにすればよいが、スペース的に困難である
と共にコスト的にも高くつく。Furthermore, although it is possible to provide the rock detection device at multiple locations around the shield main body, this is difficult in terms of space and is expensive in terms of cost.
そこで、本発明は上記欠点を解消し得るシールド掘進機
における地山検出装置を提供することを目的とする。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a rock detection device for a shield excavator that can eliminate the above-mentioned drawbacks.
即ち、本発明はシールド本体前部に回転自在に設けられ
たカッタヘッド内に、地山検知用ロッドを該カッタヘッ
ド外周面から出退可能に設けると共に、該地山検知用ロ
ッドを出退させるシリンダー装置を設けたことを特徴と
するシールド掘進機における地山検出装置で、かかる構
成によると、地山検知用ロッドが回転自在なカッタヘッ
ドに設けられているため、任意位置における地山の状態
を知ることができる。That is, the present invention provides a rock detection rod within a cutter head rotatably provided in the front part of the shield main body so as to be movable in and out from the outer peripheral surface of the cutter head, and also allows the rock rock detection rod to be moved in and out of the cutter head. A rock detection device for a shield excavator characterized by being equipped with a cylinder device. According to this configuration, the rock detection rod is provided on a rotatable cutter head, so that the state of the rock at any position can be detected. can be known.
以下、本発明の一実施例を第３図及び第４図に基づき説
明する。（１刀はシールド掘進機（２）のシールド本体
で、その前部にはカッタヘッド０３が回転自在に支持さ
れている。即ち、カッタヘッドａ春の回転軸（１４）が
シールド本体Ｃ１１ｌの隔壁αＧに収付けられた筒状支
持体ａＱ内に軸受Ｑηを介して支持され、また回転軸α
蜀の後端部にはリングギヤ（ト）が取付けられ、更にこ
のリングギヤ（ト）はシールド本体α刀側に支持された
回転駆動装置ｕｏ側のピニオン（４）に噛合わされてい
る。そして、上記カッタヘッド（１３内の適当箇所に地
山検出装置ｃ２］）が設けられている。即ち、この地山
検出装置ＣＤは、第４図に示すように、カッタヘッド叫
の外周適所に設けられたガイド筒（イ）内に出退可能に
挿入された地山検知用ロッド（以下、単にロッドと称す
）翰と、カッタヘッドα側内に設けられて上記ロッド翰
をカッタヘッド（２）外周面から出退させるシリンダー
装置（財）と、ロッド（ホ）先端に設けられた荷重計（
ハ）とから構成ばれている。An embodiment of the present invention will be described below with reference to FIGS. 3 and 4. (One sword is the shield main body of the shield excavator (2), and the cutter head 03 is rotatably supported at the front part. That is, the rotation shaft (14) of the cutter head a spring is connected to the partition wall αG of the shield main body C11l. It is supported via a bearing Qη in a cylindrical support aQ housed in the rotary shaft α
A ring gear (G) is attached to the rear end of the shield, and this ring gear (G) is further meshed with a pinion (4) on the rotary drive device uo side supported on the shield body α side. The cutter head (rock detection device c2 at an appropriate location within 13) is provided. That is, as shown in FIG. 4, this rock detecting device CD includes a rock detecting rod (hereinafter referred to as A rod (simply referred to as a rod), a cylinder device provided inside the α side of the cutter head for moving the rod into and out from the outer circumferential surface of the cutter head (2), and a load meter provided at the tip of the rod (E). (
It consists of (c).
な訃、上記ガイド筒（イ）はカッタヘッド（至）の中心
軸に対して放射方向となるように設けられている。Furthermore, the guide tube (a) is provided in a radial direction with respect to the central axis of the cutter head (to).
（ホ）は上記シリンダー装置（ハ）に作動流体を供給す
る配管、（イ）は土圧計（ハ）からの信号を制御盤等に
送るための電線で、これら配管（ホ）及び電線（２）は
回転軸（ロ）内部に形成された貫通六輪並びに回転継手
（２９Ａ）及び回転継手（２９Ｂ） ’！ｒ介してシー
ルド本体（ロ）側に導き出されている。■は上記ロッド
＠の出退量を検出するためのストローク計で、一端がロ
ッド＠下端部外周に連結されると共に他端がリール（３
１１に巻取られたワイヤー嘔と、このリール（３Ｌ）の
回転数を検出するポテンショメータ等の回転数計鄭とか
ら構成されている。なお、上記リール町）は自動的にワ
イヤーに１巻取る方向に付勢されてお９、また回転数計
国からの信号用電線例は、貫通穴（ハ）及び回転端子（
２９Ｂ）を介してシールド本体〔刀剣に導き出される。(E) is a pipe that supplies working fluid to the cylinder device (C), and (B) is an electric wire that sends a signal from the earth pressure gauge (C) to a control panel, etc. These pipes (E) and electric wire (2) are ) are six through-rings formed inside the rotating shaft (b), a rotating joint (29A), and a rotating joint (29B)'! It is led out to the shield body (b) side through r. ■ is a stroke meter for detecting the amount of protrusion and retraction of the rod @, one end is connected to the outer periphery of the lower end of the rod @, and the other end is connected to the reel (3
It consists of a wire wound around the reel (3L) and a rotation speed meter such as a potentiometer that detects the rotation speed of this reel (3L). In addition, the above-mentioned reel town) is automatically biased in the direction of winding the wire 9, and the signal wire example from the rotation speed meter country has a through hole (c) and a rotating terminal (
29B) to the shield body [sword.
また、Ｇ５１はガイド筒（２）とロッドに）との間に介
装きれたシール材である。Further, G51 is a sealing material interposed between the guide tube (2) and the rod.
従って、上記構成において、地山の崩壊状態を検出する
場合、カッタヘッド（３）を回転駆動装置０１によシ回
転させて、地山検出装置（４）をその検出したい位置に
移動させた後、シリンダー装置Ｈを作動させて第４図仮
想線で示すようにロッド＠をカッタヘッドｕ３から外方
に突出させる。すると、例えば第４図に示すように地山
に空隙（Ａｌがある場合、空隙（ト）部では、ロッド（
至）先端に設けられた荷重計■はあ１り反応しない（た
だし、地下水圧程度の反応はある）が、荷重計（ハ）が
地山に接触してシリンダー装置（ハ）の推力が上昇する
と、荷重計■が反応し、地山の存在を知ることができる
。従って、地山の空隙囚の大きさは、ロッド漫の出退量
′によって判断できる。勿論、この出退量はストローク
計（７）によって検出される。Therefore, in the above configuration, when detecting the collapsed state of the ground, the cutter head (3) is rotated by the rotary drive device 01, and the ground detection device (4) is moved to the position where detection is desired. , the cylinder device H is operated to cause the rod @ to protrude outward from the cutter head u3 as shown by the imaginary line in FIG. Then, for example, as shown in Fig. 4, if there is a void (Al) in the ground, the rod (
(To) The load cell ■ installed at the tip does not react at all (however, there is a reaction similar to groundwater pressure), but the load cell (C) comes into contact with the ground and the thrust of the cylinder device (C) increases. Then, the load cell ■ reacts, and the presence of the ground can be known. Therefore, the size of the voids in the ground can be determined by the amount of protrusion and withdrawal of the rod. Of course, this amount of movement is detected by the stroke meter (7).
以上の構成によると、地山検知用ロッドがカッタヘッド
に設けられているため、任意位置における、他山の状態
を知ることができる。According to the above configuration, since the rock detection rod is provided on the cutter head, it is possible to know the state of other rocks at any position.
ところで、上記実施例においては、地山検知用ロッドの
先端に設けられた荷重計によって地山の存在を刈るよう
にしたが、荷重針を設けずにロッドを押出すシリンダー
装置の作動流体圧の上昇によって地山の存在を知るよう
にしてもよい。By the way, in the above embodiment, the presence of a rock is detected using a load meter installed at the tip of the rock detecting rod, but the working fluid pressure of the cylinder device that pushes out the rod without a load needle is The existence of the ground may be known by the rise.
第１図及び第２図は従来例を示すもので、第１図は縦断
面図、第２図は正面図、第３図及び第４図は本発明の一
実施例を示すもので、第３図は縦断面図、第４図は要部
拡大断面図である。
圓・・・シールド本体、（２）・・・シールド掘進機、
ＣＩｊ・・・カッタヘッド、３〃・・・地山検出装置、
（４）・・・ガイド筒、（ハ）・・・地山検知用ロッド
、（ハ）・−・シリンダー装置、に）・・・荷重計、（
ハ）・・・貫通穴、翰・−・回１伝継手、（至）・・・
ストローク計
代理人 森 本 義 弘第７図
第２図
第３図
２
第４図1 and 2 show a conventional example, FIG. 1 is a longitudinal sectional view, FIG. 2 is a front view, and FIGS. 3 and 4 show an embodiment of the present invention. 3 is a longitudinal sectional view, and FIG. 4 is an enlarged sectional view of the main part. En...Shield body, (2)...Shield excavator,
CIj...Cutter head, 3...Rock detection device,
(4)...Guide tube, (c)...Rod for rock detection, (c)...Cylinder device, (c)...Load cell, (
C)...Through hole, 翿--Ki-1 transmission joint, (to)...
Stroke meter agent Yoshihiro MorimotoFigure 7
Figure 2 Figure 3 Figure 2 Figure 4
Claims (1)
ヘッド内に、地山検知用ロッドを該カッタヘッド外周面
から出退可能に設けると共に、該地山検知用ロッドを出
退させるシリンダー装置を設けたことを特徴とするシー
ルド掘進機における勝山検出装置。1. A rock detection rod is provided in the cutter head which is rotatably provided in the front part of the shield body so that it can move in and out from the outer peripheral surface of the cutter head, and a cylinder device is provided to move the rock detection rod in and out. A Katsuyama detection device in a shield excavator, characterized in that it is provided with a Katsuyama detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6140283A JPS59185297A (en) | 1983-04-06 | 1983-04-06 | Ground detecting apparatus in shield drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6140283A JPS59185297A (en) | 1983-04-06 | 1983-04-06 | Ground detecting apparatus in shield drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59185297A true JPS59185297A (en) | 1984-10-20 |
Family
ID=13170106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6140283A Pending JPS59185297A (en) | 1983-04-06 | 1983-04-06 | Ground detecting apparatus in shield drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59185297A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62138779A (en) * | 1985-12-12 | 1987-06-22 | Tekken Kensetsu Co Ltd | Surveying method for cavity in natural ground outside tunnel protection wall |
| JP2011080293A (en) * | 2009-10-08 | 2011-04-21 | Kajima Corp | Seismic response controlled bridge pier |
| WO2023051865A1 (en) * | 2021-09-29 | 2023-04-06 | Uffmann Hans Peter | Method for monitoring overburden when advance working in the ground, and advance-working device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59154293A (en) * | 1983-02-24 | 1984-09-03 | 鉄建建設株式会社 | Measuring device for excessive quantity of excavation of shielding excavator |
-
1983
- 1983-04-06 JP JP6140283A patent/JPS59185297A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59154293A (en) * | 1983-02-24 | 1984-09-03 | 鉄建建設株式会社 | Measuring device for excessive quantity of excavation of shielding excavator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62138779A (en) * | 1985-12-12 | 1987-06-22 | Tekken Kensetsu Co Ltd | Surveying method for cavity in natural ground outside tunnel protection wall |
| JPH0431357B2 (en) * | 1985-12-12 | 1992-05-26 | ||
| JP2011080293A (en) * | 2009-10-08 | 2011-04-21 | Kajima Corp | Seismic response controlled bridge pier |
| WO2023051865A1 (en) * | 2021-09-29 | 2023-04-06 | Uffmann Hans Peter | Method for monitoring overburden when advance working in the ground, and advance-working device |
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