JPH1113384A - Face water pressure measuring device for muddy shield - Google Patents
Face water pressure measuring device for muddy shieldInfo
- Publication number
- JPH1113384A JPH1113384A JP16770897A JP16770897A JPH1113384A JP H1113384 A JPH1113384 A JP H1113384A JP 16770897 A JP16770897 A JP 16770897A JP 16770897 A JP16770897 A JP 16770897A JP H1113384 A JPH1113384 A JP H1113384A
- Authority
- JP
- Japan
- Prior art keywords
- water pressure
- face
- straight pipe
- pipe
- pressure gauge
- 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
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
(57)【要約】
【課題】 水圧計を取り外さず、泥水のこぼれも生じず
に、水圧計取付配管の閉塞を簡単な作業で取り除けるよ
うにする。
【解決手段】 切羽と隔壁との間に加圧した泥水を循環
させると共に、切羽水圧を隔壁の内側に配した水圧計で
計測する泥水式シールドにおいて、隔壁２の内側に、直
管７ａと分岐管７ｂからなるＴ字配管９を配設し、直管
７ａの先端を、切羽側に連通する隔壁２の通孔２ａに接
続し、分岐管７ｂの先端に切羽水圧計８を接続し、さら
に直管７ａの基端に、直管７ａ内に止水パッキン１５を
介して挿入自在とされ且つ挿入されることで直管７ａ内
に詰まった土砂を通孔２ａに向けて押し出す押出棒１７
を設け、押出棒１７を挿入ガイド１６で案内するように
構成した。
(57) [Summary] [PROBLEMS] To remove a blockage of a hydraulic pressure gauge mounting pipe by a simple operation without removing a hydraulic pressure gauge and without spilling muddy water. SOLUTION: In a muddy shield in which pressurized muddy water is circulated between a face and a partition and a face pressure is measured by a water pressure gauge arranged inside the partition, a straight pipe 7a is branched inside the partition 2. A T-shaped pipe 9 composed of a pipe 7b is provided, the tip of the straight pipe 7a is connected to the through hole 2a of the partition wall 2 communicating with the face, and the face water pressure gauge 8 is connected to the tip of the branch pipe 7b. At the base end of the straight pipe 7a, an extruding rod 17 which can be inserted into the straight pipe 7a via a water-stop packing 15 and which pushes out the earth and sand clogged in the straight pipe 7a toward the hole 2a by being inserted.
And the push rod 17 is guided by the insertion guide 16.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、泥水式シールドに
おいて切羽の水圧計取付配管に詰まった土砂を除去する
機能を持つ切羽水圧計測装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a face water pressure measuring device having a function of removing earth and sand clogged in a pipe for mounting a pressure gauge of a face in a muddy water shield.
【０００２】[0002]
【従来の技術】泥水式シールドでは切羽の水圧を管理し
ながら掘進する必要があり、切羽の水圧管理のために隔
壁の内側に切羽水圧計を設けている。水圧計は、隔壁に
設けた通孔に配管を接続してその配管に取り付けている
が、配管に土砂が詰まると計測精度が落ちる。2. Description of the Related Art In a muddy water shield, it is necessary to excavate while controlling the water pressure of a face, and a face water pressure gauge is provided inside a partition wall for water pressure control of the face. The water pressure gauge is connected to a pipe through a through hole provided in a partition wall, and is attached to the pipe. However, if the pipe is clogged with earth and sand, measurement accuracy is reduced.
【０００３】そのため、従来では配管が閉塞した場合、
水圧計を取り外して、ウォータージェットで配管内を洗
浄していた。[0003] Therefore, conventionally, when a pipe is blocked,
The water pressure gauge was removed and the inside of the pipe was washed with a water jet.
【０００４】[0004]
【発明が解決しようとする課題】しかし、閉塞の頻度が
高くなると、水圧計の取り外し、土砂の除去、こぼれた
泥水の清掃などのために機械停止時間が増え、掘進速度
が低下するという問題があった。However, when the frequency of blockage increases, the machine stoppage time increases due to removal of a water pressure gauge, removal of earth and sand, cleaning of spilled mud, and the like, and the problem that the speed of excavation decreases. there were.
【０００５】本発明は、上記事情を考慮し、水圧計を取
り外さず、泥水のこぼれも生じずに配管の閉塞を簡単な
作業で取り除くことができ、それにより掘進速度の低下
防止を図ることのできる泥水式シールドの切羽水圧計測
装置を提供することを目的とする。The present invention has been made in consideration of the above circumstances, and it is possible to remove a blockage of a pipe by a simple operation without removing a water pressure gauge and without spilling muddy water, thereby preventing a decrease in excavation speed. It is an object of the present invention to provide a face water pressure measuring device for a muddy shield that can be used.
【０００６】[0006]
【課題を解決するための手段】請求項１の発明は、切羽
と隔壁との間に加圧した泥水を循環させると共に、切羽
水圧を、隔壁の内側に配した水圧計で計測する泥水式シ
ールドにおいて、前記隔壁の内側に、直管と分岐管から
なるＴ字配管を配設し、直管の先端を、切羽側に連通す
る隔壁の通孔に接続し、分岐管の先端に切羽水圧計を接
続し、さらに、直管の基端に、直管内に止水パッキンを
介して挿入自在とされ且つ挿入されることで直管内の土
砂を通孔に向けて押し出す押出棒を設けたことを特徴と
する。A first aspect of the present invention is a muddy shield which circulates pressurized muddy water between a face and a partition wall and measures face water pressure with a water pressure gauge arranged inside the partition wall. In the above, a T-shaped pipe consisting of a straight pipe and a branch pipe is disposed inside the partition wall, the tip of the straight pipe is connected to a through hole of the partition wall communicating with the face side, and a face pressure gauge is provided at the tip of the branch pipe. And further provided, at the base end of the straight pipe, an extruding rod which is inserted into the straight pipe via a waterproof packing and is extruded to push out the earth and sand in the straight pipe toward the hole by being inserted. Features.
【０００７】請求項２の発明は、請求項１において、前
記直管の基端に、開状態のとき押出棒の通過を許すボー
ルバルブの一端側を接続し、該ボールバルブの他端側
に、前記止水パッキンを配すると共に押出棒を待機させ
たことを特徴とする。According to a second aspect of the present invention, in the first aspect, one end of a ball valve that allows the push rod to pass when opened is connected to the base end of the straight pipe, and the other end of the ball valve is connected to the other end of the ball valve. The watertight packing is arranged and the push rod is made to stand by.
【０００８】請求項３の発明は、請求項２において、前
記ボールバルブの他端側に、押出棒を直管内に挿入する
際にその挿入動作を案内する挿入ガイドを配設したこと
を特徴とする。According to a third aspect of the present invention, in the second aspect, an insertion guide is provided at the other end of the ball valve for guiding the insertion operation when the push rod is inserted into the straight pipe. I do.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施形態を図面に
基づいて説明する。図１は実施形態の切羽水圧計測装置
を備えた泥水式シールドの概略構成を示す側断面図であ
る。図において、１はカッタヘッド、２は隔壁、３はシ
ールド本体を示す。シールド本体３内には、切羽と隔壁
２との間に加圧した泥水を循環させるための送泥管４と
排泥管５とが設けられている。また、隔壁２の内側に
は、切羽の水圧を計測するための切羽水圧計測装置６が
設けられている。図２に切羽水圧計測装置６の詳細を示
す。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view showing a schematic configuration of a muddy water shield provided with the face water pressure measuring device of the embodiment. In the figure, 1 is a cutter head, 2 is a partition, and 3 is a shield body. In the shield main body 3, a mud feeding pipe 4 and a mud discharging pipe 5 for circulating pressurized mud water between the face and the partition wall 2 are provided. A face water pressure measuring device 6 for measuring the face water pressure is provided inside the partition wall 2. FIG. 2 shows details of the face water pressure measuring device 6.
【００１０】この切羽水圧計測装置６は、Ｔ字配管７
と、水圧計８と、土砂除去装置１０とから構成されてい
る。Ｔ字配管７は、直管７ａと分岐管７ｂとを備えてお
り、直管７ａの先端が、切羽側に連通する隔壁２の通孔
２ａに接続され、分岐管７ｂの先端にボールバルブ９を
介して水圧計８が接続されている。また、土砂除去装置
１０は、直管７ａに詰まった土砂を隔壁２の通孔２ａか
ら押し出すためもので、直管７ａの基端に連結されてい
る。The face water pressure measuring device 6 includes a T-shaped pipe 7
, A water pressure gauge 8 and a sediment removal device 10. The T-shaped pipe 7 includes a straight pipe 7a and a branch pipe 7b. The tip of the straight pipe 7a is connected to the through hole 2a of the partition wall 2 communicating with the face side, and a ball valve 9 is connected to the tip of the branch pipe 7b. The water pressure gauge 8 is connected via the. The soil removal device 10 is for pushing out the soil clogged in the straight pipe 7a from the through hole 2a of the partition wall 2, and is connected to the base end of the straight pipe 7a.
【００１１】土砂除去装置１０は、直管７ａ内に挿入自
在とされた押出棒１７と、押出棒１７を挿入する際のシ
ール確保のための止水パッキン１５と、押出棒１７の挿
入動作を案内するための挿入ガイド１６等からなる。直
管７ａの基端にはフランジ１１を介してボールバルブ１
２の一端側が接続され、ボールバルブ１２の他端側に土
砂除去装置１０の取付フランジ１３が接続されている。
そして、該取付フランジ１３の中央孔に止水パッキン１
５を介して押出棒１７の先端が挿通され、押出棒１７の
後端が挿入ガイド１６により支持されている。なお、ボ
ールバルブ１２は、開状態のときに押出棒１７の通過を
許すことができる。The earth and sand removing device 10 includes an extruding rod 17 which can be freely inserted into the straight pipe 7a, a watertight packing 15 for securing a seal when the extruding rod 17 is inserted, and an insertion operation of the extruding rod 17. It comprises an insertion guide 16 for guiding. The ball valve 1 is connected to the base end of the straight pipe 7a through a flange 11.
2 is connected to one end, and the other end of the ball valve 12 is connected to a mounting flange 13 of the earth and sand removing device 10.
The watertight packing 1 is inserted into the center hole of the mounting flange 13.
The distal end of the push rod 17 is inserted through the push rod 5, and the rear end of the push rod 17 is supported by the insertion guide 16. The ball valve 12 can allow the push rod 17 to pass when it is in the open state.
【００１２】挿入ガイド１６は取付フランジ１３と一体
に固定された水平な２本のロッド１６ａからなり、それ
ら２本のロッド１６ａ間に押出棒１７が配されている。
押出棒１７の後端には端板１８が固定されており、この
端板１８に設けた２つの貫通孔を各ロッド１６ａに嵌め
ることで、押出棒１７が水平にスライド可能に支持され
ている。また、ロッド１６ａはネジ棒よりなり、ロッド
１６ａの後端には、端板１８の抜け止めを果たすロック
ナット２０が固定されている。ロックナット２０の前側
には、ロッド１６ａに螺合され回転させることでロッド
１６ａの長手方向に移動するナット部材１９が配されて
いる。これらナット部材１９は、端板１８を手で押して
も押出棒１７を直管７ａの内部に押し込めないときに代
わりに用いるものであり、これを工具で回すことによ
り、端板１８を前進させられるようになっている。The insertion guide 16 comprises two horizontal rods 16a fixed integrally with the mounting flange 13, and a push rod 17 is arranged between the two rods 16a.
An end plate 18 is fixed to the rear end of the push rod 17, and the push rod 17 is horizontally slidably supported by fitting two through holes provided in the end plate 18 to each rod 16 a. . The rod 16a is formed of a threaded rod, and a lock nut 20 for preventing the end plate 18 from coming off is fixed to the rear end of the rod 16a. On the front side of the lock nut 20, a nut member 19 that is screwed to the rod 16a and that moves in the longitudinal direction of the rod 16a by being rotated is arranged. These nut members 19 are used instead when the push rod 17 cannot be pushed into the inside of the straight pipe 7a even if the end plate 18 is pushed by hand, and the end plate 18 can be advanced by turning it with a tool. It has become.
【００１３】次に作用を説明する。水圧計８によって切
羽の水圧を計測する場合は、水圧計８側のボールバルブ
９を開き、土砂除去装置１０側のボールバルブ１２を閉
じる。これにより、切羽の水圧が押出棒１７側へは漏れ
ずに、Ｔ字配管７を介して確実に水圧計８に達するの
で、水圧計８で切羽の水圧を正確に計測できる。Next, the operation will be described. When the water pressure of the face is measured by the water pressure gauge 8, the ball valve 9 on the water pressure gauge 8 side is opened and the ball valve 12 on the soil removal device 10 side is closed. As a result, the water pressure of the face does not leak to the push rod 17 side and reaches the water pressure gauge 8 via the T-shaped pipe 7, so that the water pressure of the face can be accurately measured by the water pressure gauge 8.
【００１４】一方、Ｔ字配管７の内部に土砂が詰まった
場合は、水圧計８側のボールバルブ９を閉じ、土砂除去
装置１０側のボールバルブ１２を開く。そして、後方に
引いて待機させてある押出棒１７を、端板１８を押すこ
とにより直管７ａの内部に挿入させ、内部に詰まった土
砂を押出棒１７で押し出す。このとき、押出棒１７の先
端は、隔壁２の通孔２ａより若干寸法突き出す。直管７
ａの内部の清掃が終わったら、再び押出棒１７を待機位
置に引いて、ボールバルブ１２を閉じ、水圧計８側のボ
ールバルブ９を開く。それにより、通常の切羽水圧の計
測を再開することができる。なお、上記の操作の際に挿
入ガイド１６が確実に押出棒１７の動きを案内するの
で、押出棒１７の挿入をスムーズ且つ確実に行うことが
できる。On the other hand, when earth and sand are clogged in the T-shaped pipe 7, the ball valve 9 on the water pressure gauge 8 is closed and the ball valve 12 on the earth and sand removing device 10 is opened. Then, the pushing rod 17 pulled backward and put on standby is inserted into the straight pipe 7 a by pushing the end plate 18, and the earth and sand clogged inside is pushed out by the pushing rod 17. At this time, the tip of the push rod 17 slightly protrudes from the through hole 2a of the partition wall 2. Straight pipe 7
After the cleaning of the inside of a, the pushing rod 17 is again pulled to the standby position, the ball valve 12 is closed, and the ball valve 9 on the water pressure gauge 8 side is opened. Thereby, normal measurement of the face water pressure can be restarted. In addition, since the insertion guide 16 reliably guides the movement of the push rod 17 during the above operation, the push rod 17 can be smoothly and reliably inserted.
【００１５】[0015]
【発明の効果】以上説明したように、請求項１の発明に
よれば、配管が閉塞した場合、押出棒を直管内に挿入す
るだけで、直管内の土砂を押し出すことができるので、
水圧計を取り外して作業する必要がない。また、押出棒
は止水パッキンを介して挿入するので、泥水のこぼれも
ない。従って、簡単な作業で時間を食わずに、配管の閉
塞を取り除くことができ、結果的に掘進速度を増大させ
ることができる。As described above, according to the first aspect of the present invention, when the pipe is blocked, the earth and sand in the straight pipe can be pushed out only by inserting the push rod into the straight pipe.
There is no need to work with the water pressure gauge removed. Further, since the push rod is inserted through the waterproof packing, there is no spillage of muddy water. Therefore, it is possible to remove the blockage of the piping with a simple operation without taking time, and as a result, it is possible to increase the excavation speed.
【００１６】請求項２の発明によれば、ボールバルブを
閉じることにより確実に直管の他端部を閉鎖することが
できるので、通常の掘削時において、止水パッキンへの
負担を無くせる。According to the second aspect of the present invention, the other end of the straight pipe can be reliably closed by closing the ball valve, so that the burden on the water stop packing during ordinary excavation can be eliminated.
【００１７】請求項３の発明によれば、挿入ガイドを設
けたので、押出棒の挿入動作をスムーズに行うことがで
きる。According to the third aspect of the present invention, since the insertion guide is provided, the insertion operation of the push rod can be performed smoothly.
【図１】 本発明の実施形態の土砂除去装置を備えた泥
水式シールドの側断面図である。FIG. 1 is a side sectional view of a muddy water shield provided with an earth and sand removing device according to an embodiment of the present invention.
【図２】 同土砂除去装置の詳細図である。FIG. 2 is a detailed view of the earth and sand removing device.
２ 隔壁 ２ａ 通孔 ７ Ｔ字配管 １０ 土砂除去装置 １２ ボールバルブ １７ 押出棒 １５ 止水パッキン １６ 挿入ガイド 2 Partition wall 2a Through hole 7 T-shaped piping 10 Sediment removal device 12 Ball valve 17 Push rod 15 Waterproof packing 16 Insertion guide
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐倉 政光 東京都港区芝浦一丁目２番３号 清水建設 株式会社内 (72)発明者 中谷 武彦 東京都港区芝浦一丁目２番３号 清水建設 株式会社内 (72)発明者 清水 直樹 東京都港区芝浦一丁目２番３号 清水建設 株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masamitsu Sakura 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Takehiko Nakatani 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Naoki Shimizu Shimizu Corporation, 2-3-2 Shibaura, Minato-ku, Tokyo
Claims (3)
させると共に、切羽水圧を、隔壁の内側に配した水圧計
で計測する泥水式シールドにおいて、 前記隔壁の内側に、直管と分岐管からなるＴ字配管を配
設し、 直管の先端を、切羽側に連通する隔壁の通孔に接続し、 分岐管の先端に切羽水圧計を接続し、 さらに、直管の基端に、直管内に止水パッキンを介して
挿入自在とされ且つ挿入されることで直管内の土砂を前
記通孔に向けて押し出す押出棒を設けたことを特徴とす
る泥水式シールドの切羽水圧計測装置。1. A muddy shield for circulating pressurized muddy water between a face and a partition wall and measuring face water pressure with a water pressure gauge arranged inside the partition wall, wherein a straight pipe is provided inside the partition wall. A T-shaped pipe consisting of a branch pipe is provided, the tip of the straight pipe is connected to the through hole of the partition wall communicating with the face, the face water pressure gauge is connected to the tip of the branch pipe, and the base end of the straight pipe A water pressure gauge for a muddy shield, wherein an extruding rod is provided which is inserted into the straight pipe via a waterproof packing and is pushed out to push earth and sand in the straight pipe toward the through hole by being inserted. apparatus.
の通過を許すボールバルブの一端側を接続し、該ボール
バルブの他端側に、前記止水パッキンを配すると共に押
出棒を待機させたことを特徴とする請求項１記載の泥水
式シールドの切羽水圧計測装置。2. A base end of the straight pipe is connected to one end of a ball valve that allows the push rod to pass when it is in an open state. The face water pressure measuring device for a muddy water shield according to claim 1, wherein the rod is made to stand by.
直管内に挿入する際にその挿入動作を案内する挿入ガイ
ドを配設したことを特徴とする請求項２記載の泥水式シ
ールドの切羽水圧計測装置。3. The muddy water shield according to claim 2, wherein an insertion guide for guiding the insertion operation when the push rod is inserted into the straight pipe is disposed on the other end side of the ball valve. Face water pressure measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16770897A JP3572565B2 (en) | 1997-06-24 | 1997-06-24 | Face water pressure measuring device for muddy shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16770897A JP3572565B2 (en) | 1997-06-24 | 1997-06-24 | Face water pressure measuring device for muddy shield |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1113384A true JPH1113384A (en) | 1999-01-19 |
| JP3572565B2 JP3572565B2 (en) | 2004-10-06 |
Family
ID=15854747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16770897A Expired - Fee Related JP3572565B2 (en) | 1997-06-24 | 1997-06-24 | Face water pressure measuring device for muddy shield |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3572565B2 (en) |
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| CN102434170A (en) * | 2010-09-29 | 2012-05-02 | 上海尤加工程机械科技有限公司 | Air bag piston stretching device of pipe connecting device for slurry shield |
| CN103953820A (en) * | 2014-05-08 | 2014-07-30 | 中国铁建重工集团有限公司 | Block instrument device for pipeline extending system of slurry balancing shield machine |
| JP2016069822A (en) * | 2014-09-26 | 2016-05-09 | 鹿島建設株式会社 | Method and apparatus for measuring excavated sediment density of shield machine |
| JP2017014878A (en) * | 2015-07-07 | 2017-01-19 | 三井住友建設株式会社 | Shield machine and tunnel construction method |
| CN112554905A (en) * | 2020-12-31 | 2021-03-26 | 中铁工程装备集团有限公司 | Slurry pipe extending device and construction method thereof |
-
1997
- 1997-06-24 JP JP16770897A patent/JP3572565B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010144450A (en) * | 2008-12-19 | 2010-07-01 | Ihi Corp | Wear measuring instrument of screw conveyor and wear measuring method |
| CN102434170A (en) * | 2010-09-29 | 2012-05-02 | 上海尤加工程机械科技有限公司 | Air bag piston stretching device of pipe connecting device for slurry shield |
| CN103953820A (en) * | 2014-05-08 | 2014-07-30 | 中国铁建重工集团有限公司 | Block instrument device for pipeline extending system of slurry balancing shield machine |
| JP2016069822A (en) * | 2014-09-26 | 2016-05-09 | 鹿島建設株式会社 | Method and apparatus for measuring excavated sediment density of shield machine |
| JP2017014878A (en) * | 2015-07-07 | 2017-01-19 | 三井住友建設株式会社 | Shield machine and tunnel construction method |
| CN112554905A (en) * | 2020-12-31 | 2021-03-26 | 中铁工程装备集团有限公司 | Slurry pipe extending device and construction method thereof |
| CN112554905B (en) * | 2020-12-31 | 2022-03-25 | 中铁工程装备集团有限公司 | Slurry pipe extending device and construction method thereof |
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|---|---|
| JP3572565B2 (en) | 2004-10-06 |
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