JPH0624748Y2 - Earth pressure measuring device for tunnel machine - Google Patents
Earth pressure measuring device for tunnel machineInfo
- Publication number
- JPH0624748Y2 JPH0624748Y2 JP1986025116U JP2511686U JPH0624748Y2 JP H0624748 Y2 JPH0624748 Y2 JP H0624748Y2 JP 1986025116 U JP1986025116 U JP 1986025116U JP 2511686 U JP2511686 U JP 2511686U JP H0624748 Y2 JPH0624748 Y2 JP H0624748Y2
- Authority
- JP
- Japan
- Prior art keywords
- receiving member
- pressure receiving
- boss
- earth pressure
- pressure
- 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 - Lifetime
Links
- 238000005259 measurement Methods 0.000 claims 1
- 239000004576 sand Substances 0.000 description 9
- 239000002689 soil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Description
【考案の詳細な説明】 〔考案の利用分野〕 本考案は、トンネル掘進機のシールドハル等の土圧が作
用する箇所に取付けられて土圧を測定するトンネル掘進
機用土圧測定装置に関する。[Detailed Description of the Invention] [Field of use of the invention] The present invention relates to a soil pressure measuring device for a tunnel excavator, which is attached to a portion such as a shield hull of a tunnel excavator where earth pressure acts, to measure the soil pressure.
トンネル掘進機の土圧測定装置として、例えば特開昭54
-124169号に開示されたものが知られている。この土圧
測定装置は、受圧部材と計測部とがケース内に組込ま
れ、このケースをトンネル掘進機のシールドハル等に取
付けて土圧を測定するようになっている。しかるに、前
記計測部が故障等の原因によりこれを交換する必要が生
じても、計測部のみを交換することはできず、ケース、
即ち土圧測定装置全体を取外して新しいものと交換しな
ければならない。また、土圧測定装置の受圧部材には常
に土圧が作用しているので、該土圧測定装置を取外した
とき、その取付孔から土砂がシールドハル内部に侵入す
る恐れがあるため、土圧測定装置の取外しに当っては、
受圧部材周りの土砂を取り除くといった極めて難しい作
業を行わなければならない。As an earth pressure measuring device for a tunnel machine, for example, Japanese Patent Laid-Open No.
The thing disclosed in No. 124169 is known. In this earth pressure measuring device, a pressure receiving member and a measuring unit are incorporated in a case, and the case is attached to a shield hull or the like of a tunnel excavator to measure earth pressure. However, even if the measuring unit needs to be replaced due to a failure or the like, it is not possible to replace only the measuring unit, and
That is, the whole earth pressure measuring device must be removed and replaced with a new one. In addition, since the earth pressure is constantly acting on the pressure receiving member of the earth pressure measuring device, when the earth pressure measuring device is removed, earth and sand may enter the shield hull from its mounting hole. When removing the measuring device,
Extremely difficult work such as removing the soil around the pressure receiving member must be performed.
本考案の目的は、土圧が常に受圧部材に作用している状
態でも計測部のみの取付け，取外しが行え、しかも計測
部の取付け，取外しに際して、受圧部材周りの土砂の取
り除きを行うことなく土砂のシールドハル内部への侵入
を防止できるトンネル掘進機用土圧測定装置を提供する
ことにある。The object of the present invention is to install and remove only the measuring unit even when earth pressure is constantly acting on the pressure receiving member. Moreover, when installing and removing the measuring unit, the earth and sand around the pressure receiving member need not be removed. An object of the present invention is to provide a soil pressure measuring device for a tunnel excavator, which can prevent the intrusion into the inside of the shield hull.
本考案は、前記の如き目的を達成するため、土圧を受け
る受圧部材と、その受圧部材に作用する土圧を計測する
計測部材とを備え、トンネル掘進機の本体に固設したボ
スの取付孔に前記受圧部材を軸線方向に摺動可能に嵌入
し、かつ該受圧部材を前記ボスに係合せしめると共に、
受圧部材嵌入側面部を密封状態に保ち、前記計測部材を
受圧部材の背面に接触状態で配設し、かつ計測部材をボ
スに着脱可能に固着し、この固着した状態で前記受圧部
材がボスと非接触となるようにしたことを特徴とし、こ
れにより、計測部材の取付け、取外しに際し、受圧部材
周りの土砂の取り除きを行なうことなく土砂のシールド
ハル内部への侵入を防止することができるようにしたも
のである。In order to achieve the above-mentioned object, the present invention is provided with a pressure receiving member for receiving earth pressure and a measuring member for measuring earth pressure acting on the pressure receiving member, and mounting a boss fixed on the main body of the tunnel machine. While fitting the pressure receiving member in the hole so as to be slidable in the axial direction and engaging the pressure receiving member with the boss,
The pressure receiving member fitting side surface portion is kept in a sealed state, the measuring member is arranged in contact with the back surface of the pressure receiving member, and the measuring member is detachably fixed to the boss, and in this fixed state, the pressure receiving member serves as the boss. It is characterized by being non-contact, so that it is possible to prevent the invasion of earth and sand into the inside of the shield hull without removing the earth and sand around the pressure receiving member when mounting and removing the measuring member. It was done.
以下、本考案の一実施例を第１図により説明する。第１
図は計測部材として土圧計を使用した場合の土圧測定装
置の断面図を示している。図において、トンネル掘進機
のシールドハル１には開口1aが設けられ、この開口1a部
に取付孔2aを有するボス２が固設されている。土圧測定
装置の受圧部材３は、その外径が前記取付孔2aの径より
僅かに小径となっていて、受圧面3aをシールドハル１の
外面側に向けて取付孔2aに嵌入されている。また受圧部
材３の背面側にはフランジ3bが設けられ、このフランジ
3bには複数のボルト通し孔3cが設けられている。そし
て、各通し孔3cにそれぞれボルト４を挿通し、各ボルト
４をボス２にねじ込むことにより、受圧部材３は各ボル
ト４の頭部とフランジ3bとを介してボス２に係合される
と共に、取付孔2aの軸方向に僅かに摺動可能となってい
る。また、受圧部材３の嵌入部は、受圧部材３と取付孔
2aとの間に介在したＯリング５により密封されている。
このＯリング５は受圧部材３の外周面に設けた環状溝3d
に嵌め込まれている。An embodiment of the present invention will be described below with reference to FIG. First
The figure shows a cross-sectional view of an earth pressure measuring device when an earth pressure gauge is used as a measuring member. In the figure, an opening 1a is provided in a shield hull 1 of a tunnel machine, and a boss 2 having a mounting hole 2a is fixedly provided in the opening 1a portion. The pressure receiving member 3 of the earth pressure measuring device has an outer diameter slightly smaller than the diameter of the mounting hole 2a, and is fitted into the mounting hole 2a with the pressure receiving surface 3a facing the outer surface side of the shield hull 1. . Further, a flange 3b is provided on the back side of the pressure receiving member 3, and the flange 3b is provided.
A plurality of bolt through holes 3c are provided in 3b. Then, by inserting the bolts 4 into the through holes 3c and screwing the bolts 4 into the bosses 2, the pressure receiving member 3 is engaged with the bosses 2 via the heads of the bolts 4 and the flanges 3b. , Can be slid slightly in the axial direction of the mounting hole 2a. In addition, the fitting portion of the pressure receiving member 3 includes the pressure receiving member 3 and the mounting hole.
It is sealed by an O-ring 5 which is interposed between the 2a and 2a.
This O-ring 5 is an annular groove 3d provided on the outer peripheral surface of the pressure receiving member 3.
Is fitted into.
一方、土圧測定装置の土圧計６は、受圧部材３の背面3e
と接触状態で配設されている。この土圧計６の背面側に
はフランジ6aが設けられ、該フランジ6aには複数のボル
ト通し孔6bが設けられている。そして、各通し孔6bにそ
れぞれボルト７を挿通し、各ボルト７をボス２にねじ込
むと共に、フランジ6aの両側にて各ボルト７にナット8
a，8bを嵌め込むことにより、土圧計６はボス２に取付
けられている。またナット8bをボルト７から取外すこと
により、土圧計６は取外せるようになっている。On the other hand, the earth pressure gauge 6 of the earth pressure measuring device is the rear surface 3e of the pressure receiving member 3.
It is arranged in contact with. A flange 6a is provided on the back side of the earth pressure gauge 6, and a plurality of bolt through holes 6b are provided in the flange 6a. Then, the bolts 7 are respectively inserted into the through holes 6b, the bolts 7 are screwed into the boss 2, and the nuts 8 are attached to the bolts 7 on both sides of the flange 6a.
The earth pressure gauge 6 is attached to the boss 2 by fitting a and 8b. The earth pressure gauge 6 can be removed by removing the nut 8b from the bolt 7.
前記の如き構造の土圧測定装置は、受圧部材３の受圧面
3aに作用する土圧を土圧計６に伝えることで該土圧を計
測する。この土圧測定において、土圧計６が何らかの原
因で故障し交換する必要が生じた場合には、ナット8bを
ボルト７から取外して土圧計６を取外した後、新しい土
圧計を取付ける。この際、受圧部材３はボス２に係合
し、かつ受圧部材嵌入部がＯリング４にて密封されてい
るので、シールドハル１外側の土砂が取付孔2a部よりシ
ールドハル１内部に侵入することはない。The earth pressure measuring device having the above-described structure is used for the pressure receiving surface of the pressure receiving member 3.
The earth pressure acting on 3a is transmitted to the earth pressure gauge 6 to measure the earth pressure. In this earth pressure measurement, if the earth pressure gauge 6 fails for some reason and needs to be replaced, the nut 8b is removed from the bolt 7, the earth pressure gauge 6 is removed, and then a new earth pressure gauge is attached. At this time, since the pressure receiving member 3 is engaged with the boss 2 and the pressure receiving member fitting portion is sealed by the O-ring 4, the earth and sand outside the shield hull 1 enter the inside of the shield hull 1 through the mounting hole 2a. There is no such thing.
従って、本実施例においては、土圧計のみの取付け，取
外しを行えると共に、該土圧計の取付け，取外しに際し
て受圧部材周りの土砂の取り除きを行うことなく土砂の
シールドハル内部への侵入を防止できる。Therefore, in this embodiment, the earth pressure gauge alone can be attached and detached, and the earth and sand can be prevented from entering the shield hull without removing the earth and sand around the pressure receiving member when attaching and detaching the earth pressure gauge.
第２図は本考案の他の実施例を示し、第１図の実施例と
異なるのは、ボス２の背面に筒状のボス10をボルト11に
て取付け、両ボスにて取付孔2a内面に環状溝12を形成
し、かつ受圧部材３のフランジ3bを前記環状溝12に嵌め
込むことにより、受圧部材３を両ボスに係合せしめる一
方、土圧計６を前記ボス10内に配置した状態でフランジ
6aを介し複数本のボルト13にてボス10に固定した点にあ
る。FIG. 2 shows another embodiment of the present invention. The difference from the embodiment of FIG. 1 is that a cylindrical boss 10 is attached to the rear surface of the boss 2 with bolts 11, and the inner surface of the attachment hole 2a is attached with both bosses. A state in which the annular groove 12 is formed and the flange 3b of the pressure receiving member 3 is fitted into the annular groove 12 so that the pressure receiving member 3 is engaged with both bosses while the earth pressure gauge 6 is arranged in the boss 10. With flange
It is at a point fixed to the boss 10 with a plurality of bolts 13 via 6a.
この実施例においては、ボルト13を取外すことにより土
圧計６の交換を行うことができる。尚、この実施例にお
いては、受圧部材３の背面を円弧面に形成していると共
に、Ｏリング４の嵌め込み溝3dをボス２側に設けてい
る。In this embodiment, the earth pressure gauge 6 can be replaced by removing the bolt 13. In this embodiment, the back surface of the pressure receiving member 3 is formed into a circular arc surface, and the fitting groove 3d for the O-ring 4 is provided on the boss 2 side.
第３図も本考案の他の実施例を示し、この実施例は計測
部材としてロードセルを使用した場合の例である。この
土圧測定装置は、ボス２の下部に該ボスにインロー嵌合
するボス14を配設すると共に、そのボス14をボルト15に
てシールドハル１に固定し、かつ両ボスにて取付孔2a内
面に環状溝16を形成し、受圧部材３のフランジ3bを前記
環状溝16に嵌め込むことにより受圧部材３を両ボスに係
合させている。一方ロードセル17の中央部をボルト18に
て受圧部材３の背面に固定し、かつ外周部をボルト19に
てボス14に固定すると共に、ロードセル17の背面を覆う
カバー20をボルト21にてボス14に固定している。尚、図
中５は受圧部材３嵌入部を密封するＯリング、22はロー
ドセル17の歪ゲージ、23は歪ゲージ22からの検出信号を
アンプ（図示せず）に送るケーブルを示す。FIG. 3 also shows another embodiment of the present invention, which is an example in which a load cell is used as a measuring member. In this earth pressure measuring device, a boss 14 which fits in a spigot to the boss 2 is provided in the lower part of the boss 2, the boss 14 is fixed to the shield hull 1 by a bolt 15, and the mounting holes 2a are attached by both bosses. An annular groove 16 is formed on the inner surface, and the flange 3b of the pressure receiving member 3 is fitted into the annular groove 16 so that the pressure receiving member 3 is engaged with both bosses. On the other hand, the central portion of the load cell 17 is fixed to the back surface of the pressure receiving member 3 with a bolt 18, the outer peripheral portion is fixed to the boss 14 with a bolt 19, and the cover 20 covering the back surface of the load cell 17 is fixed to the boss 14 with a bolt 21. It is fixed to. In the figure, 5 is an O-ring for sealing the fitting portion of the pressure receiving member 3, 22 is a strain gauge of the load cell 17, and 23 is a cable for sending a detection signal from the strain gauge 22 to an amplifier (not shown).
この実施例において、ロードセル17を交換したい場合
は、先ずボルト21を外してカバー20を取外し、次いでボ
ルト18，19を外せばロードセル17を取外せるので、容易
に交換することができる。また、この際、受圧部材３は
ボス２，14に係合されて取付孔2aを密封状態に保持して
いるので、シールドハル内部への土砂の侵入を防止す
る。In this embodiment, when it is desired to replace the load cell 17, the bolt 21 is first removed, the cover 20 is removed, and then the load cell 17 can be removed by removing the bolts 18 and 19. Therefore, the load cell 17 can be easily replaced. Further, at this time, since the pressure receiving member 3 is engaged with the bosses 2 and 14 and holds the mounting hole 2a in a sealed state, the intrusion of earth and sand into the inside of the shield hull is prevented.
第４図は第３図の変形例を示し、第３図と異なるのは、
受圧部材３を上下に２分割し、両分割受圧部材３Ａ，３
Ｂをボルト24にて結合すると共に、分割受圧部材３Ａ，
３Ｂの外周に環状溝25を形成し、かつボス２にフランジ
26を設け、このフランジ26を前記環状溝25に嵌め込むこ
とにより、受圧部材３をボス２に係合させた点にある。
この実施例においても、第３図と同様な作用，効果を達
成できる。FIG. 4 shows a modification of FIG. 3, and the difference from FIG. 3 is that
The pressure receiving member 3 is vertically divided into two, and the two pressure receiving members 3A and 3 are divided.
B is connected with the bolt 24, and the divided pressure receiving members 3A,
An annular groove 25 is formed on the outer periphery of 3B and a flange is formed on the boss 2.
26 is provided, and the pressure receiving member 3 is engaged with the boss 2 by fitting the flange 26 into the annular groove 25.
Also in this embodiment, the same operation and effect as in FIG. 3 can be achieved.
なお、上記各実施例においては、ボス２をシールドハル
１と別体に製作し、これをシールドハル１に固着する構
造を示したが、このボス２をシールドハル１の切削加工
等により一体に構成しても同様である。In each of the above embodiments, the boss 2 is manufactured separately from the shield hull 1 and is fixed to the shield hull 1. However, the boss 2 is integrally formed by cutting the shield hull 1 or the like. The same applies to the configuration.
以上説明したように、本考案によれば、土圧が常に受圧
部材に作用している状態でも計測部のみの取付け，取外
しを行え、しかも計測部の取付け，取外しに際して、受
圧部材周りの土砂の取り除きを行うことなく土砂のシー
ルドハル内部への侵入を防止できる。As described above, according to the present invention, only the measuring unit can be attached and detached even when the earth pressure is constantly acting on the pressure receiving member. Moreover, when the measuring unit is attached and detached, the soil around the pressure receiving member can be removed. It is possible to prevent dirt and sand from entering the inside of the shield hull without removing it.
第１図は本考案のトンネル掘進機用土圧測定装置の一実
施例を示す断面図、第２図ないし第４図は本考案の他の
実施例を示す断面図である。 １……シールドハル、2,10,14……ボス、2a……取付
孔、３……受圧部材、3a……受圧面、3b,2b,6a……フラ
ンジ、3c……ボルト通し孔、３Ａ，３Ｂ……分割受圧部
材、4,7,13,18,19,21……ボルト、５……Ｏリング、６
……土圧計、12,16,25……環状溝、17……ロードセル。FIG. 1 is a sectional view showing an embodiment of the earth pressure measuring device for a tunnel excavator according to the present invention, and FIGS. 2 to 4 are sectional views showing another embodiment of the present invention. 1 ... Shield hull, 2,10,14 ... Boss, 2a ... Mounting hole, 3 ... Pressure receiving member, 3a ... Pressure receiving surface, 3b, 2b, 6a ... Flange, 3c ... Bolt through hole, 3A , 3B ... Divided pressure receiving member, 4,7,13,18,19,21 ... Bolt, 5 ... O ring, 6
…… Earth pressure gauge, 12,16,25 …… annular groove, 17 …… load cell.
Claims (7)
作用する土圧を計測する計測部材とを備え、トンネル掘
進機の本体に固設したボスの取付孔に前記受圧部材を軸
線方向に摺動可能に嵌入し、かつ該受圧部材を前記ボス
に係合せしめると共に、受圧部材嵌入側面部を密封状態
に保ち、前記計測部材を受圧部材の背面に接触状態で配
設し、かつ計測部材をボスに着脱可能に固着し、この固
着した状態で前記受圧部材がボスと非接触になるように
したことを特徴とするトンネル掘進機用土圧測定装置。1. A pressure receiving member for receiving earth pressure and a measuring member for measuring earth pressure acting on the pressure receiving member, wherein the pressure receiving member is axially provided in a mounting hole of a boss fixedly provided in a main body of a tunnel excavator. Is slidably fitted to the pressure receiving member, the pressure receiving member is engaged with the boss, the pressure receiving member fitting side surface portion is kept in a sealed state, and the measuring member is arranged in contact with the back surface of the pressure receiving member, and measurement is performed. An earth pressure measuring device for a tunnel machine, wherein a member is detachably fixed to a boss, and in this fixed state, the pressure receiving member is not in contact with the boss.
受圧部材のボスへの係合は、受圧部材に設けたフランジ
と、該フランジに設けたボルト通し孔を挿通してボスに
ねじ込まれるボルトの頭部とで行われていることを特徴
とするトンネル掘進機用土圧測定装置。2. In the claim 1 of the utility model registration claim,
The tunnel is characterized in that the pressure receiving member is engaged with the boss by a flange provided on the pressure receiving member and a head of a bolt which is inserted into a bolt through hole provided in the flange and screwed into the boss. Earth pressure measuring device for excavators.
受圧部材のボスへの係合は、どちらか一方に設けたフラ
ンジと、どちらか他方に設けた環状溝との嵌め合いで行
われていることを特徴とするトンネル掘進機用土圧測定
装置。3. A utility model registration claim as set forth in claim 1.
The earth pressure measuring device for a tunnel machine, wherein engagement of the pressure receiving member with the boss is performed by fitting a flange provided on either one side and an annular groove provided on the other side.
計測部材は、フランジを有し、このフランジを介してボ
スにねじ止めされていることを特徴とするトンネル掘進
機用土圧測定装置。4. A utility model registration claim as set forth in claim 1,
The earth pressure measuring device for a tunnel machine, wherein the measuring member has a flange and is screwed to the boss via the flange.
計測部材が土圧計であることを特徴とするトンネル掘進
機用土圧測定装置。5. In claim 1 of the utility model registration claim,
An earth pressure measuring device for a tunnel machine, wherein the measuring member is an earth pressure gauge.
計測部材がロードセルであることを特徴とするトンネル
掘進機用土圧測定装置。6. In claim 1 of the utility model registration claim,
An earth pressure measuring device for a tunnel machine, wherein the measuring member is a load cell.
受圧部材嵌入部の密封は、受圧部材と取付孔との間に介
在したＯリングにて行われていることを特徴とするトン
ネル掘進機用土圧測定装置。7. In claim 1 of the utility model registration claim,
The earth pressure measuring device for a tunnel machine, characterized in that the pressure receiving member fitting portion is sealed by an O-ring interposed between the pressure receiving member and the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986025116U JPH0624748Y2 (en) | 1986-02-25 | 1986-02-25 | Earth pressure measuring device for tunnel machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986025116U JPH0624748Y2 (en) | 1986-02-25 | 1986-02-25 | Earth pressure measuring device for tunnel machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62140334U JPS62140334U (en) | 1987-09-04 |
| JPH0624748Y2 true JPH0624748Y2 (en) | 1994-06-29 |
Family
ID=30824968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986025116U Expired - Lifetime JPH0624748Y2 (en) | 1986-02-25 | 1986-02-25 | Earth pressure measuring device for tunnel machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624748Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007255117A (en) * | 2006-03-24 | 2007-10-04 | Kumagai Gumi Co Ltd | Earth pressure measuring device for shield machine |
| JP6590368B2 (en) * | 2015-12-01 | 2019-10-16 | 株式会社安藤・間 | Soil pressure and shear force measurement sensor |
| JP7191737B2 (en) * | 2019-03-11 | 2022-12-19 | 日本電産コパル電子株式会社 | load cell |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5941133A (en) * | 1982-08-30 | 1984-03-07 | Shinko Electric Co Ltd | Insulating method for coil of electromagnetic clutch brake |
-
1986
- 1986-02-25 JP JP1986025116U patent/JPH0624748Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62140334U (en) | 1987-09-04 |
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