JPS632558Y2 - - Google Patents
Info
- Publication number
- JPS632558Y2 JPS632558Y2 JP785982U JP785982U JPS632558Y2 JP S632558 Y2 JPS632558 Y2 JP S632558Y2 JP 785982 U JP785982 U JP 785982U JP 785982 U JP785982 U JP 785982U JP S632558 Y2 JPS632558 Y2 JP S632558Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- pressure chamber
- earth
- earth pressure
- gauges
- 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
- 230000001681 protective effect Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000005641 tunneling Effects 0.000 claims description 3
- 238000005192 partition Methods 0.000 description 8
- 239000002689 soil Substances 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004576 sand Substances 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】
本考案はシールド掘進機における土圧計の保護
装置に関するものである。[Detailed Description of the Invention] The present invention relates to a protection device for an earth pressure gauge in a shield excavator.
シールド掘進機において、カツタ圧力室内の土
圧及び水圧等の圧力を知ることは掘削上非常に重
要である。従来、圧力室の隔壁には、上記圧力を
検出する圧力計（以下、土圧計と称す）が一個設
けられている。ところで、この土圧計は、圧力室
内に取込まれた掘削土砂により、その表面が摩耗
され、特に掘削距離が長い場合、故障、損傷が発
生し易すいという欠点があつた。 In a shield excavator, it is very important to know the pressures such as earth pressure and water pressure in the cutter pressure chamber for excavation. Conventionally, a partition wall of a pressure chamber is provided with one pressure gauge (hereinafter referred to as an earth pressure gauge) for detecting the above pressure. However, this soil pressure gauge has a drawback in that its surface is abraded by the excavated earth and sand taken into the pressure chamber, making it susceptible to breakdowns and damage, especially when the excavation distance is long.
そこで、本考案は上記欠点を解消し得るシール
ド掘進機における土圧計の保護装置を提供するも
のである。 Therefore, the present invention provides a protection device for an earth pressure gauge in a shield excavator that can eliminate the above-mentioned drawbacks.
即ち、本考案はシールド掘進機の圧力室を形成
する隔壁に、該圧力室内の土圧、水圧等を検出す
る土圧計を複数個取付けると共に、上記各土圧計
の保護カバーを大気圧室側から隔壁に螺入挿通さ
れたおねじ体の先端に螺合保持させたことを特徴
とするものである。 That is, in the present invention, a plurality of earth pressure gauges for detecting earth pressure, water pressure, etc. in the pressure chamber are attached to the bulkhead forming the pressure chamber of the shield tunneling machine, and the protective cover of each of the earth pressure gauges is installed from the atmospheric pressure chamber side. It is characterized in that it is screwed and held at the tip of a male threaded body that is screwed through the partition wall.
以下、本考案の一実施例を第１図及び第２図に
基づき説明する。１はシールド本体、２はシール
ド本体１前部に設けられると共に回転駆動装置３
により回転自在にされたカツタヘツド、４はカツ
タヘツド２の後方に形成された圧力室、５は圧力
室４の後部隔壁で、その後方には大気圧室６が形
成されている。７は上記隔壁５の中心部を挿通し
て設けられたスクリユウコンベヤ式排土装置で、
圧力室４内に取込まれた掘削土砂を大気圧室６側
に排出するためのものである。８は圧力室４の後
部隔壁５の排土装置７挿通部周囲に複数箇所に設
けられた土圧計で、圧力室４内の土圧及び水圧を
検出するものである。この土圧計８は、第２図に
示すように、隔壁５に形成された開口５ａにその
検出部８ａが挿入されると共にそのフランジ部８
ｂが大気圧室６側から挿通された第１ボルト９に
より、隔壁５に支持されている。そして、その検
出部８ａ表面を覆う保護カバー１０は、大気圧室
６側から隔壁５に形成されたねじ穴５ｂを介して
螺入挿通された第２ボルト（おねじ体）１１の先
端部に螺合保持されている。従つて、その掘削中
に、使用している土圧計８が損傷した場合、第２
図仮想線で示すように、他の土圧計８の保護カバ
ー１０の保持用第２ボルト１１を大気圧室６側か
ら弛めて、保護カバー１０を圧力室４内に落下さ
せれば、再び圧力室４内の土圧及び水圧を検出す
ることができる。このように、複数個（２個若し
くは２個以上）の土圧計８の保護カバー１０を順
次取外すことによつて、掘削距離が長い場合でも
最適な掘削状態を維持することができる。なお、
上記保護カバー１０は、落下後、排土装置７によ
り排出可能な大きさにされており、また保護カバ
ー１０は複数に分割したものであつてもよく、更
に必要に応じて水密性を持たすようにしてもよ
い。 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. 1 is a shield main body, 2 is a rotary drive device 3 provided at the front of the shield main body 1;
4 is a pressure chamber formed at the rear of the cutter head 2, 5 is a rear partition wall of the pressure chamber 4, and an atmospheric pressure chamber 6 is formed behind it. 7 is a screw conveyor type earth removal device installed through the center of the partition wall 5;
This is for discharging excavated soil taken into the pressure chamber 4 to the atmospheric pressure chamber 6 side. Reference numeral 8 denotes earth pressure gauges provided at a plurality of locations around the insertion portion of the earth removal device 7 in the rear partition wall 5 of the pressure chamber 4, which detect earth pressure and water pressure within the pressure chamber 4. As shown in FIG.
b is supported by the partition wall 5 by a first bolt 9 inserted from the atmospheric pressure chamber 6 side. A protective cover 10 covering the surface of the detection part 8a is attached to the tip of a second bolt (male threaded body) 11 that is screwed through a screw hole 5b formed in the partition wall 5 from the atmospheric pressure chamber 6 side. It is screwed together and retained. Therefore, if the soil pressure gauge 8 used is damaged during excavation, the second
As shown by the imaginary line in the figure, if the second bolt 11 for holding the protective cover 10 of the other earth pressure gauge 8 is loosened from the atmospheric pressure chamber 6 side and the protective cover 10 is dropped into the pressure chamber 4, Earth pressure and water pressure within the pressure chamber 4 can be detected. In this way, by sequentially removing the protective covers 10 of a plurality of (two or more) earth pressure gauges 8, an optimal excavation state can be maintained even when the excavation distance is long. In addition,
The protective cover 10 is sized so that it can be removed by the earth removal device 7 after falling, and the protective cover 10 may be divided into a plurality of parts, and if necessary, it can be made watertight. You can also do this.
以上のように、本考案のシールド掘進機におけ
る土圧計の保護装置によれば、圧力室の隔壁に複
数個の土圧計を設けると共に、その保護カバーを
大気圧室側から取外せるようにしたので、これら
複数個の土圧計をそれぞれ別個に使用でき、従つ
て従来土圧計が一個であつたものに比べて、かな
りの長距離掘削にあつても圧力室内の土圧及び水
圧を正確に検出し得る。 As described above, according to the earth pressure gauge protection device for a shield tunneling machine of the present invention, a plurality of earth pressure gauges are provided on the partition wall of the pressure chamber, and the protective cover can be removed from the atmospheric pressure chamber side. , these multiple soil pressure gauges can be used separately, and therefore the soil pressure and water pressure in the pressure chamber can be accurately detected even when excavating over a considerable distance, compared to conventional soil pressure gauges that use only one. obtain.
第１図は本考案の一実施例の全体縦断面図、第
２図は要部拡大断面図である。
１……シールド本体、４……圧力室、５……後
部隔壁（隔壁）、６……大気圧室、８……土圧計、
８ａ……検出部、８ｂ……フランジ部、１０……
保護カバー、１１……第２ボルト（おねじ体）。
FIG. 1 is an overall vertical sectional view of an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of the main part. 1... Shield body, 4... Pressure chamber, 5... Rear bulkhead (bulkhead), 6... Atmospheric pressure chamber, 8... Earth pressure gauge,
8a...detection section, 8b...flange section, 10...
Protective cover, 11...Second bolt (male thread).
Claims (1)
圧力室内の土圧、水圧等を検出する土圧計を複数
個取付けると共に、上記各土圧計の保護カバーを
大気圧室側から隔壁に螺入挿通されたおねじ体の
先端に螺合保持させたことを特徴とするシールド
掘進機における土圧計の保護装置。 A plurality of earth pressure gauges for detecting earth pressure, water pressure, etc. in the pressure chamber are installed on the bulkhead forming the pressure chamber of the shield tunneling machine, and the protective covers of each of the earth pressure gauges are screwed into the bulkhead from the atmospheric pressure chamber side. A protection device for an earth pressure gauge in a shield excavator, characterized in that the earth pressure gauge is screwed onto the tip of a male threaded body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP785982U JPS58111290U (en) | 1982-01-22 | 1982-01-22 | Protection device for earth pressure gauge in shield excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP785982U JPS58111290U (en) | 1982-01-22 | 1982-01-22 | Protection device for earth pressure gauge in shield excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58111290U JPS58111290U (en) | 1983-07-29 |
| JPS632558Y2 true JPS632558Y2 (en) | 1988-01-22 |
Family
ID=30020589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP785982U Granted JPS58111290U (en) | 1982-01-22 | 1982-01-22 | Protection device for earth pressure gauge in shield excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58111290U (en) |
-
1982
- 1982-01-22 JP JP785982U patent/JPS58111290U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58111290U (en) | 1983-07-29 |
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