JPS63161296A - Backfilling material injector for shield excavator - Google Patents
Backfilling material injector for shield excavatorInfo
- Publication number
- JPS63161296A JPS63161296A JP61306372A JP30637286A JPS63161296A JP S63161296 A JPS63161296 A JP S63161296A JP 61306372 A JP61306372 A JP 61306372A JP 30637286 A JP30637286 A JP 30637286A JP S63161296 A JPS63161296 A JP S63161296A
- Authority
- JP
- Japan
- Prior art keywords
- backfilling material
- pipe
- material injection
- solenoid valve
- rod
- 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
- 239000000463 material Substances 0.000 title claims description 151
- 238000002347 injection Methods 0.000 claims description 93
- 239000007924 injection Substances 0.000 claims description 93
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 47
- 238000004140 cleaning Methods 0.000 claims description 33
- 238000001514 detection method Methods 0.000 claims description 19
- 238000005406 washing Methods 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000005641 tunneling Effects 0.000 claims description 2
- 239000011800 void material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241000146433 Jacquinia keyensis Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Lining And Supports For 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】
〔産業上の利用分野〕
本発明はシールド掘進機の裏込材注入装置に係り、詳し
くはシールド本体を形成するスキンプレートの外周壁に
設置されて、掘削外径とセグメント外径との差によるテ
ールボイド部に裏込材を注入する装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a backfill material injection device for a shield excavator, and more specifically, the device is installed on the outer peripheral wall of a skin plate forming a shield body, and The present invention relates to a device for injecting a backfilling material into a tail void portion due to a difference in outer diameter of a segment.
裏込材注入装置を備えたシールド掘進機の一例を第８図
、第９図により説明する。An example of a shield excavator equipped with a backfill material injection device will be explained with reference to FIGS. 8 and 9.
地山１００の切羽１０１を掘削するカッタホイルを備え
たシールド掘進機１の本体を形成するスキンプレート（
外殻円筒）２の後端内周面部には、リップ部を円筒形の
セグメント３の外周面に接触させたテールシール４が取
付けられており、外周壁には裏込材注入装置を構成する
ほぼ半円形の保護管５が円周上に間隔をおいて複数個設
けられている。地山１００をシールド掘進機１が掘進し
、テールシール４の内周側にセグメント３を組立てた時
、シールド掘進機１の直後に生じる空間（掘削外径とセ
グメント外径との差による空間）、すなわちテールボイ
ド６に、シールド掘進機１の掘進と同期して裏込材注入
装置により裏込材を注入する。A skin plate (
A tail seal 4 whose lip portion is in contact with the outer circumferential surface of the cylindrical segment 3 is attached to the inner circumferential surface of the rear end of the cylindrical outer shell (cylindrical outer shell) 2, and the outer circumferential wall constitutes a backfilling material injection device. A plurality of approximately semicircular protection tubes 5 are provided at intervals on the circumference. When the shield excavator 1 excavates the earth 100 and assembles the segment 3 on the inner circumferential side of the tail seal 4, a space is created immediately after the shield excavator 1 (a space due to the difference between the excavation outer diameter and the segment outer diameter) That is, the backfilling material is injected into the tail void 6 by the backfilling material injection device in synchronization with the excavation of the shield excavator 1.
この種の従来の裏込材注入装置としては、本出願人が実
開昭５９−４７７９７号をもって提案した裏込材注入装
置がある。この裏込材注入装置は、シールド本体を形成
するスキンプレートの外周壁に、後端側に注入口壁部を
有する保護管を設け、前記注入口壁部に裏込材注入口を
設けると共に、保護管内に裏込材注入管路および洗浄木
管路を構成し、裏込材注入管路の出口の開閉切替えを行
うスプールを前記裏込材注入口に摺動可能に挿入し、そ
のスプールに連結したロッドに摺動操作手段を連結し、
前記ロッドのつき出し、引っこみにより裏込材注入管路
の出口と裏込材注入口との連通、洗浄水管路と裏込材注
入管路の出口との連通の切替えを行えるようにする一方
、貯槽に接続したポンプの吐出側を、開閉弁を具えた供
給管を介して裏込材注入管路に接続し、かつ開閉弁を具
えた排出管を洗浄水管路に接続した構成となっている。As a conventional backfilling material injection device of this type, there is a backfilling material injection device proposed by the present applicant in Japanese Utility Model Application No. 59-47797. This backfilling material injection device includes a protective tube having an injection port wall portion on the rear end side on the outer peripheral wall of a skin plate forming a shield body, a backfilling material injection port provided on the injection port wall portion, and A backfill material injection pipe and a cleaning wood pipe are configured in the protection tube, and a spool for switching the outlet of the backfill material injection pipe to open and close is slidably inserted into the backfill material injection port and connected to the spool. A sliding operation means is connected to the rod,
By protruding and retracting the rod, communication between the outlet of the backfilling material injection pipe and the backfilling material injection port, and communication between the washing water pipe and the outlet of the backfilling material injection pipe can be switched. The discharge side of the pump connected to the storage tank is connected to the backfilling material injection pipe through a supply pipe equipped with an on-off valve, and the discharge pipe equipped with an on-off valve is connected to the washing water pipe. There is.
そして、裏込材の注入時には、貯槽内に裏込材をたくわ
えると共に、ロッドの引っこみによりスプールを前方に
摺動させて裏込材注入管路の出口と裏込材注入口とを連
通させ、供給管の開閉弁を開きポンプの駆動により裏込
材を裏込材注入管路に送り込み、裏込材注入口よりテー
ルボイドに注入する。When injecting the backfilling material, the backfilling material is stored in the storage tank, and the rod is retracted to slide the spool forward to communicate the outlet of the backfilling material injection pipe and the backfilling material injection port. , the on-off valve of the supply pipe is opened, and the backfilling material is sent into the backfilling material injection pipe by driving the pump, and is injected into the tail void from the backfilling material injection port.
また、裏込材注入作業が完了し、管路内を洗浄する時に
は、貯槽内に裏込材が残っていないことを確かめ、貯槽
内に洗浄水を満たし、排出管の開閉弁を開くと共に、ロ
ッドのつき出しによりスプールを後方に摺動させて裏込
材注入管路の出口と洗浄水管路とを連通させ、ポンプを
駆動して洗浄水を供給管、裏込材注入管路、洗浄水管路
、排出管の順に流通させて、裏込材注入管路内に残存す
る裏込材を押し流す。なお、供給管の開閉弁および排出
管の開閉弁の開閉操作は手動によって行われている。In addition, when the backfilling material injection work is completed and the inside of the pipeline is cleaned, make sure that no backfilling material remains in the storage tank, fill the storage tank with cleaning water, open the on-off valve of the discharge pipe, and By protruding the rod, the spool is slid backward to communicate the outlet of the backfilling material injection pipe with the washing water pipe, and the pump is driven to supply washing water to the supply pipe, the backfilling material injection pipe, and the washing water pipe. The backfilling material remaining in the backfilling material injection pipeline is flushed out by passing through the backfilling material injection channel and the discharge pipe in this order. Note that the opening/closing operations of the supply pipe opening/closing valve and the discharge pipe opening/closing valve are performed manually.
上記の裏込材注入装置は、裏込材貯槽と洗浄水貯槽とを
１つの貯槽で兼用しており、かつ供給管の開閉弁および
排出管の開閉弁が手動式となっているので、裏込材注入
から管内の洗浄に移行させるまでに手間がかかり、洗浄
の周期が遅れるため、裏込材注入管路内に残存する裏込
材が洗浄される前に徐々に固結してしまう。その結果、
洗浄に長時間を要したり、洗浄しても管路壁面に固結し
た裏込材を押し流せなくなり、ついては管路内に固結し
た裏込材が堆積して管路を閉塞してしまう問題があった
。The above-mentioned backfilling material injection device uses a single storage tank as both a backfilling material storage tank and a wash water storage tank, and the on-off valve of the supply pipe and the on-off valve of the discharge pipe are manually operated. It takes time and effort to move from the injection of the filler material to the cleaning of the inside of the pipe, and the cleaning cycle is delayed, so that the backfill material remaining in the backfill material injection pipeline gradually solidifies before it is cleaned. the result,
It takes a long time to clean, or the backing material that has solidified on the pipe wall cannot be washed away even after cleaning, and the solidified backing material accumulates inside the pipe and blocks the pipe. There was a problem.
本発明の目的は、裏込材注入完了後、直ちに洗浄工程に
移行させられて、短かい洗浄時間で管路内をきれいに洗
浄でき、固結した裏込材による管路の閉塞を防止できる
ジ−ドル掘進機の裏込材注入装置を提供することにある
。An object of the present invention is to provide a pipe that can be moved to a cleaning process immediately after the injection of backfilling material is completed, and can clean the inside of the pipeline in a short cleaning time, thereby preventing blockage of the pipeline due to solidified backfilling material. - An object of the present invention is to provide a backfilling material injection device for a dollar digging machine.
上記目的は、シールド本体を形成するスキンプレートの
外周壁に、後端側に注入口壁部を有する保護管を設け、
前記注入口壁部に裏込材注入口を設けると共に、保護管
内に裏込材注入管路および洗浄水管路を構成し、裏込材
注入管路の出口の開閉切替えを行うスプールを前記裏込
材注入口に摺動可能に挿入し、そのスプールに連結した
ロッドに摺動操作手段を連結し、前記ロッドのつき出し
、引っこみにより裏込材注入管路の出口と裏込材注入口
との連通、洗浄水管路と裏込材注入管路の出口との連通
の切替えを行うようにしたシールド掘進機の裏込材注入
装置において、前記裏込材注入管路の入口を第１電磁弁
を具えた裏込材供給管に接続し、前記洗浄水管路を第２
′電磁弁を具えた洗浄木管路に接続し、かつ前記裏込材
供給管の第１の電磁弁出口側に第３電磁弁を具えた洗浄
水排出管を接続する一方、前記ロッドの引っこみ位置を
検知する第１検知器およびロッドのつき出し位置を検知
する第２検知器を設け、第１検知器から検知信号が出力
されると第１電磁弁が開、第２電磁弁および第３電磁弁
が閉となり、第２検知器から検知信号が出力されると第
１電磁弁が閉、第２電磁弁および第３電磁弁が開となる
ように構成することで、達成される。The above purpose is to provide a protective tube having an inlet wall on the rear end side on the outer peripheral wall of the skin plate forming the shield body,
A backfilling material injection port is provided in the injection port wall, a backfilling material injection pipe and a cleaning water pipe are configured in the protection tube, and a spool for switching the opening and closing of the outlet of the backfilling material injection pipe is connected to the backfilling material. A sliding operation means is connected to a rod that is slidably inserted into the material injection port and connected to the spool, and by protruding and retracting the rod, the outlet of the backfill material injection pipe and the backfill material injection port are connected. In a backfilling material injection device for a shield excavator, the inlet of the backfilling material injection pipe is connected to a first solenoid valve. The washing water pipe is connected to a backfilling material supply pipe equipped with a second
' Connecting to a cleaning wood pipe line equipped with a solenoid valve, and connecting a cleaning water discharge pipe equipped with a third solenoid valve to the first solenoid valve outlet side of the backing material supply pipe, while retracting the rod. A first detector for detecting the position and a second detector for detecting the protruding position of the rod are provided, and when a detection signal is output from the first detector, the first solenoid valve opens, the second solenoid valve and the third solenoid valve open. This is achieved by configuring so that when the solenoid valve is closed and a detection signal is output from the second detector, the first solenoid valve is closed and the second and third solenoid valves are opened.
裏込材の注入に際して、ロッドの引っこみによりスプー
ルを摺動させて裏込材注入管路の出口と裏込材注入口と
を連通させた時、前記ロッドの引っこみ位置が第１検知
器により検知され、その第１検知器からの検知信号によ
って第１電磁弁が開、第２電磁弁および第３電磁弁が閉
となる。この状態でポンプを駆動すると裏込材が裏込材
供給管を通って裏込材注入管路へ送り込まれた後、裏込
材注入口よりテールボイドに注入される。この裏込材注
入完了後、洗浄を行うためのロッドのつき出しによりス
プールを摺動させて裏込材注入管路の出口と洗浄木管路
とを連通させた時、前記ロッドのつき出し位置が第２検
知器により検知され、その第２検知器からの検知信号に
よって第１電磁弁が閉、第２電磁弁および第３電磁弁が
開となる。When injecting backfilling material, when the rod is retracted to slide the spool and communicate the outlet of the backfilling material injection pipe and the backfilling material inlet, the retracted position of the rod is detected by the first detector. The detection signal from the first detector causes the first solenoid valve to open, and the second and third solenoid valves to close. When the pump is driven in this state, the backfilling material is fed into the backfilling material injection conduit through the backfilling material supply pipe, and then injected into the tail void from the backfilling material injection port. After the injection of the backfilling material is completed, when the spool is slid by protruding the rod for cleaning and the outlet of the backfilling material injection conduit and the cleaning wood conduit are communicated, the protruding position of the rod is It is detected by the second detector, and the first electromagnetic valve is closed and the second electromagnetic valve and the third electromagnetic valve are opened by the detection signal from the second detector.
この状態においてポンプを駆動すると洗浄水が洗浄水供
給管、洗浄水管路、裏込材注入管路、裏込材供給管、洗
浄水排出管の順に流通して、裏込材注入ホースに残存す
る裏込材を押し流す。これにより裏込材注入完了後、直
ちに洗浄工程に移行させられる、すなわち洗浄の周期を
速められて管路内の裏込材が固結する前に洗浄できるの
で、短かい洗浄時間で管路内をきれいに洗浄できる。When the pump is operated in this state, the wash water flows through the wash water supply pipe, the wash water pipe, the backfill material injection pipe, the backfill material supply pipe, and the wash water discharge pipe in this order, and remains in the backfill material injection hose. Push away the backing material. As a result, the cleaning process can be started immediately after the injection of the backfilling material is completed.In other words, the cleaning cycle can be accelerated and the backfilling material inside the pipe can be cleaned before it solidifies, so the inside of the pipe can be cleaned in a short cleaning time. can be cleaned thoroughly.
以下、本発明の一実施例を第１図ないし第３図により説
明する。第１図は本発明による裏込材注入装置の断面図
および裏込材供給系統、洗浄水供給系を示す図、第２図
は第１図のスプールロッドの引込み状態を示すｎ−ｎ断
面図、第３図は第１図の■−■断面図である。図におい
て、２はスキンプレート、３はセグメント、４はテール
シール、５は保護管を示している。保護管５の後端側に
有する注入口壁部６には、裏込材注入ロアと裏込材注入
管路８とが設げられており、裏込材注入管路８の円筒状
部には継手９を介して裏込材注入ホース１０が連結され
ている。An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. FIG. 1 is a cross-sectional view of a backfilling material injection device according to the present invention, a backfilling material supply system, and a washing water supply system. FIG. , FIG. 3 is a cross-sectional view taken along the line ■-■ of FIG. In the figure, 2 is a skin plate, 3 is a segment, 4 is a tail seal, and 5 is a protective tube. A backfilling material injection lower and a backfilling material injection conduit 8 are provided in the injection port wall portion 6 on the rear end side of the protection tube 5 . A backfilling material injection hose 10 is connected via a joint 9.
裏込材注入ロア内にはスプールロッド１１と一体のスプ
ールｌｌａが摺動可能に挿入されている。スプールＬｌ
ａの後端には傾斜面が形成されている。A spool lla integrated with a spool rod 11 is slidably inserted into the backfilling material injection lower. Spool Ll
An inclined surface is formed at the rear end of a.
スプールロッド１１およびスプールｌｌａには軸線方向
に沿った洗浄水管路１２が設けられており、その管路１
２の開口１２ａはスプールｌｌａに半径方向に設けられ
ている。スプールロッド１１は保護管５の内壁に取イ」
げた前側支持板１３、後側支持板１４に支持されている
。スプールロッド１１の前端曲折部および裏込材注入ボ
ース１０の前端曲折部は、スキンプレート２に設けた取
出し用孔１５から導き出されている。裏込材注入ホース
１０は第１電磁弁１６を具えた裏込材供給管１７を介し
て裏込材ポンプ１８の吐出側に接続されている。裏込材
ポンプ１８の吸入側は裏込材貯槽１９に接続されている
。スプールロッド１１内の洗浄木管路１２は第２電磁弁
２０を具えた洗浄水供給管２１を介して洗浄水ポンプ２
２の吐出側に接続されている。洗浄水ポンプ２２の吸入
側は洗浄水貯槽２３に接続されている。また、前記裏込
材供給管１７の第１電磁弁１６出ロ側には第３電磁弁２
４を具えた洗浄水排出管２５の一方が接続されており、
そ−ト２と一体の支持部との間には、摺動操作手段とし
ての油圧シリンダ２７が設置されている。また、スプー
ルロッド１１の前端曲折部には検知棒２８が取付けられ
、スキンプレート２には前記検知棒２８の先端部との接
触によりスプールロッド１１の引っこみ位置を検知する
第１検知器２９およびスプールロッド１１のつき出し位
置を検知する第２検知器３０が設置されている。これら
検知器と前記の電磁弁とは連動され、第１検知器２９か
ら検知信号が出力されると第１電磁弁１６が開、第２電
磁弁２０および第３電磁弁２４が閉となり、また第２検
知器３０から検知信号が出力されると第１電磁弁１６が
閉、第２電磁弁２０および第３電磁弁２４が開となる。The spool rod 11 and the spool lla are provided with a cleaning water pipe 12 along the axial direction, and the pipe 1
The second opening 12a is provided in the spool lla in the radial direction. The spool rod 11 is attached to the inner wall of the protection tube 5.
It is supported by a raised front support plate 13 and a rear support plate 14. The front end bent portion of the spool rod 11 and the front end bent portion of the backing material injection boss 10 are led out from a takeout hole 15 provided in the skin plate 2. The backfilling material injection hose 10 is connected to the discharge side of the backfilling material pump 18 via a backfilling material supply pipe 17 equipped with a first electromagnetic valve 16 . The suction side of the backfilling material pump 18 is connected to a backfilling material storage tank 19 . A cleaning pipe 12 in the spool rod 11 is connected to a cleaning water pump 2 through a cleaning water supply pipe 21 equipped with a second solenoid valve 20.
It is connected to the discharge side of No.2. The suction side of the wash water pump 22 is connected to a wash water storage tank 23 . Further, a third solenoid valve 2 is provided on the outlet side of the first solenoid valve 16 of the backfilling material supply pipe 17.
One side of the washing water discharge pipe 25 equipped with 4 is connected,
A hydraulic cylinder 27 as a sliding operation means is installed between the tray 2 and the integral support section. A detection rod 28 is attached to the bent portion of the front end of the spool rod 11, and a first detector 29 and A second detector 30 is installed to detect the protruding position of the spool rod 11. These detectors and the above-mentioned solenoid valves are interlocked, and when a detection signal is output from the first detector 29, the first solenoid valve 16 is opened, the second solenoid valve 20 and the third solenoid valve 24 are closed, and When a detection signal is output from the second detector 30, the first solenoid valve 16 is closed, and the second solenoid valve 20 and the third solenoid valve 24 are opened.
第１検知器２９および第２検知器３０としては、例えば
マイクロスインチが用いられる。As the first detector 29 and the second detector 30, for example, a microsinch is used.
次に本実施例の作用について説明する。Next, the operation of this embodiment will be explained.
裏込材の注入に際して、油圧シリンダ２７の伸長により
スプールロッド１１およびスプールｌｌａを前方（図示
で左方）に摺動させ、裏込材注入管路８の出口８ａと裏
込材注入ロアとを連通させた時、前記スプールロッド１
１の引っこみ位置が検知棒２８を介して第１検知器２９
により検知され、その第１検知器２９からの検知信号に
よって第１電磁弁１６が開、第２電磁弁２０および第３
電磁弁２４が閉となる。この状態で裏込材ポンプ１８を
駆動すると裏込材貯槽２６の裏込材が裏込材供給管１７
、裏込材注入ホース１０を通って裏込材注入管路８へ送
り込まれた後、裏込材注入ロアよりテールボイドに注入
される。When injecting the backfilling material, the spool rod 11 and the spool lla are slid forward (to the left in the figure) by the extension of the hydraulic cylinder 27, and the outlet 8a of the backfilling material injection conduit 8 and the backfilling material injection lower are connected. When connected, the spool rod 1
The first retracted position is the first detector 29 via the detection rod 28.
The detection signal from the first detector 29 causes the first solenoid valve 16 to open, and the second solenoid valve 20 and the third solenoid valve to open.
Solenoid valve 24 is closed. When the backfill material pump 18 is driven in this state, the backfill material in the backfill material storage tank 26 is transferred to the backfill material supply pipe 17.
After being fed into the backfilling material injection conduit 8 through the backfilling material injection hose 10, it is injected into the tail void from the backfilling material injection lower.
この裏込材注入完了後、洗浄を行うために油圧シリンダ
２７の縮小によりスプールロッド１１およびスプールＩ
ｌａを後方（右方）に摺動させ、裏込材注入管路８の出
口８ａと洗浄水管路１２の開口１２ａとを連通させた時
、スプールロッド１１のつき出し位置が検知棒２８を介
して第２検地器３０により検知され、その第２検知器３
０からの検知信号によって第１電磁弁１６が閉、第２電
磁弁２０および第３電磁弁２４が開となる。この状態で
洗浄水ポンプ２２を駆動すると洗浄水貯槽２３の洗浄水
が洗浄水供給管２１、洗浄木管路１２、裏込材注入管路
８、裏込材注入ホース１０、洗浄水排出管２５の順に流
通して、裏込材注入管路８内に残存する裏込材を押し流
す。After the injection of the backfilling material is completed, the hydraulic cylinder 27 is contracted to clean the spool rod 11 and the spool I.
When the spool rod 11 is slid backward (to the right) and the outlet 8a of the backfilling material injection pipe 8 and the opening 12a of the cleaning water pipe 12 are communicated, the protruding position of the spool rod 11 is determined by the detection rod 28. is detected by the second earth detector 30, and the second earth detector 3
The first solenoid valve 16 is closed and the second solenoid valve 20 and third solenoid valve 24 are opened by the detection signal from 0. When the wash water pump 22 is driven in this state, the wash water in the wash water storage tank 23 is supplied to the wash water supply pipe 21, the wash wood pipe line 12, the backfill material injection pipe 8, the backfill material injection hose 10, and the wash water discharge pipe 25. The backfilling material remaining in the backfilling material injection conduit 8 is washed away.
以上の如く、本実施例においては、裏込材の注入完了後
、直ちに洗浄工程に移行させられる、すなわち洗浄の周
期を速められて管路内の裏込材が固結する前に洗浄でき
るので、短かい洗浄時間で管路内をきれいに洗浄できる
。その結果、固結した裏込材による管路内の閉塞を確実
に防止できる。As described above, in this embodiment, the cleaning process is started immediately after the injection of the backfilling material is completed, that is, the cleaning cycle is accelerated and the backfilling material in the pipe can be cleaned before it hardens. , the inside of the pipe can be thoroughly cleaned in a short cleaning time. As a result, it is possible to reliably prevent the inside of the pipe from being blocked by the solidified backing material.
なお、上記実施例は、調合した裏込材を裏込材貯槽１９
に入れ、その裏込材を裏込材ポンプ１８により裏込材供
給管１７へ送り出すようにした例を示したが、第４図に
示すように裏込材の一方の成分液を貯える貯槽１９Ａお
よびそのポンプ１８Ａと、他方の成分液を貯える貯槽１
９Ｂおよびそのポンプ１８Ｂと、ミキシングノズル３１
とを備え、ポンプ１８Ａおよび１８Ｂより送り出され成
分液をミキシングノズル３１で混合して裏込材を作り、
その裏込材を裏込材供給管１７へ送り出すようにしても
よい。In addition, in the above embodiment, the prepared backfilling material is stored in the backfilling material storage tank 19.
In this example, the backfilling material is sent to the backfilling material supply pipe 17 by the backfilling material pump 18, but as shown in FIG. and its pump 18A, and a storage tank 1 that stores the other component liquid.
9B, its pump 18B, and mixing nozzle 31
and mix the component liquids sent out from pumps 18A and 18B with a mixing nozzle 31 to make a backfilling material,
The backfilling material may be sent out to the backfilling material supply pipe 17.
また、第５図に示すように裏込材ポンプと洗浄水ポンプ
とを１台のポンプ３２で兼用し、そのポンプ３２の吐出
側に裏込材供給管１７および洗浄水供給管２１を接続し
、かつポンプ３２の吸入側を第４電磁弁３３を介して裏
込材貯槽１９に接続すると共に、第５電磁弁３４を介し
て洗浄水貯槽２３に接続し、前記第４電磁弁３３を第１
検知器２９からの検知信号により開くように、前記第５
電磁弁３４を第２検知器３０からの検知信号により開く
ようにし、裏込材注入時にはポンプ３２により裏込材貯
槽１９の裏込材を裏込材供給管１７へ送り出し、洗浄時
にはポンプ３２により洗浄水貯槽２３の洗浄水を洗浄水
供給管２１へ送り出すようにしてもよい。Furthermore, as shown in FIG. 5, one pump 32 is used as both the backfill material pump and the wash water pump, and the backfill material supply pipe 17 and the wash water supply pipe 21 are connected to the discharge side of the pump 32. , and the suction side of the pump 32 is connected to the backfilling material storage tank 19 via a fourth electromagnetic valve 33, and is connected to the wash water storage tank 23 via a fifth electromagnetic valve 34, and the fourth electromagnetic valve 33 is connected to the 1
The fifth opening is opened by a detection signal from the detector 29
The solenoid valve 34 is opened by the detection signal from the second detector 30, and the pump 32 sends out the backfilling material in the backfilling material storage tank 19 to the backfilling material supply pipe 17 when the backfilling material is injected, and the pump 32 sends out the backfilling material from the backfilling material storage tank 19 to the backfilling material supply pipe 17 during cleaning. The wash water in the wash water storage tank 23 may be sent to the wash water supply pipe 21.
また、上記実施例では洗浄木管路１２をスプールロッド
１１内に設けた例を示したが、洗浄水管路１２をスプー
ルロッド１１の外側に設けるようにすることもできる。Further, in the above embodiment, an example was shown in which the cleaning water pipe 12 was provided inside the spool rod 11, but the cleaning water pipe 12 could also be provided outside the spool rod 11.
その具体例を第６図、第７図により説明すると、後端壁
に裏込材注入ロアを設けた筒体３５が保護管５内に設置
され、その筒体３５丙に洗浄木管路１１が形成されてい
る。また、筒体３５内にはスプールロッド１１が配設さ
れ、裏込材注入ロアにはスプールｌｌａが挿入されてお
り、スプールロッド１１は筒体３５の前端壁に装着した
油圧シリンダ２７のピストン２７ａに連結されている。A specific example of this will be explained with reference to FIGS. 6 and 7. A cylinder 35 having a backfilling material injection lower on the rear end wall is installed inside the protective tube 5, and a cleaning wood pipe line 11 is installed in the cylinder 35. It is formed. Further, a spool rod 11 is disposed inside the cylinder 35, a spool lla is inserted into the backfilling material injection lower, and the spool rod 11 is connected to the piston 27a of the hydraulic cylinder 27 attached to the front end wall of the cylinder 35. is connected to.
油圧シリンダ２７のピストン２７ａの反ロッド側には、
第１検知器２９および第２検知器３０の検知棒２８が取
付けられている。前記筒体３５の外側には裏込材注入管
路８が形成され、この裏込材注入管路８は裏込材注入ホ
ース１０に連結されている。前記洗浄水管路１１は洗浄
水供給管２１に連結されている。そして、第６図に示す
ように油圧シリンダ２７のピストン２７ａの前方（図示
で左方）への移動によりスプールロッド１１およびスプ
ールｌｌａを前方へ摺動させて、裏込材注入管路８の出
口８ａと裏込材注入ロアとを連通させた時、スプールロ
ッド１１の引っこみ位置が検知棒２８を介して第１検知
器２９により検知され、また第７図に示すように油圧シ
リンダ２７のピストン２７ａの後方（右方）への移動に
よりスプールロッド１１およびスプールｌｌａ後方へ摺
動させて、裏込材注入管路８の出口８ａと裏込材注入ロ
アとを連通させた時、スプールロッド１１のつき出し位
置が検知棒２８を介して第２検知器３０により検出され
る。On the opposite rod side of the piston 27a of the hydraulic cylinder 27,
The detection rods 28 of the first detector 29 and the second detector 30 are attached. A backfilling material injection conduit 8 is formed on the outside of the cylindrical body 35, and this backfilling material injection conduit 8 is connected to a backfilling material injection hose 10. The washing water pipe 11 is connected to a washing water supply pipe 21. Then, as shown in FIG. 6, by moving the piston 27a of the hydraulic cylinder 27 forward (to the left in the figure), the spool rod 11 and the spool lla are slid forward, and the outlet of the backfilling material injection pipe 8 is 8a and the backfill material injection lower, the retracted position of the spool rod 11 is detected by the first detector 29 via the detection rod 28, and the piston of the hydraulic cylinder 27 is detected as shown in FIG. When the spool rod 11 and the spool lla are slid rearward by moving the spool rod 27a rearward (to the right) and the outlet 8a of the backing material injection conduit 8 and the backing material injection lower are communicated, the spool rod 11 The protruding position is detected by the second detector 30 via the detection rod 28.
本発明によれば、裏込材注入完了後、直ちに洗浄工程に
移行させられる、すなわち洗浄の周期を速められて管路
内の裏込材が固結する前に洗浄を行えるので、短かい洗
浄時間で管路内をきれいに洗浄できる。従って、固結し
た裏込材による管路内の閉塞を確実に防止できる。According to the present invention, the cleaning process can be started immediately after the injection of the backfilling material is completed, that is, the cleaning cycle can be sped up and cleaning can be performed before the backfilling material in the pipe hardens, resulting in a short cleaning process. You can clean the inside of the pipe in a short amount of time. Therefore, it is possible to reliably prevent the inside of the pipe from being blocked by the solidified backing material.
第１図ないし第３図は本発明の一実施例を示し、第１図
は本発明による裏込材注入装置の断面図および裏込材供
給系統、洗浄水供給系統を示す図、第２図は第１図のス
プールロッドの引込み状態を示すｎ−■断面図、第３図
は第１図のＩ−Ｔｆｆ断面図、第４図および第５図は裏
込材供給系統、洗浄水供給系統の他の例を示す図、第６
図は裏込材注入部分の他の例を示す断面図でスプールロ
ッドの引込み状態を示す、第７図はスプールロッドのつ
き出し状態を示す断面図、第８図はシールド掘進機の一
例を示す断面側面図、第９図は第８図の■−■断面図で
ある。
１・・・シールド掘進機、２・・・スキンプレート、３
・・・セグメント、５・・・保護管、６・・・テールボ
イド、７・・・裏込材注入口、８・・・裏込材注入管路
、８ａ・・・出口、１１・・・スプールロッド、ｌｌａ
・・・スプール、１２・・・洗浄木管路、１６・・・第
１電磁弁、１７・・・裏込材供給管、１８・・・裏込材
ポンプ、１９・・・裏込材貯槽、２０・・・第２電磁弁
、２１・・・洗浄水供給管、２２・・・洗浄水ポンプ、
２３・・・洗浄水貯槽、２４・・・第３電磁弁、２５・
・・洗浄水排出管、２６・・・排水槽、２７・・・油圧
シリンダ、２８・・・検知棒、２９・・・第１検知器、
３０・・・第２検知器。
特許出願人 日立建機株式会社
代理人 弁理士 秋 本 正 実
１１間ロＵ６３−１６１２９６ （７）第８図
第９図1 to 3 show an embodiment of the present invention, FIG. 1 is a sectional view of a backfilling material injection device according to the present invention, a backfilling material supply system, and a washing water supply system, and FIG. 2 is a diagram showing an embodiment of the present invention. is an n-■ sectional view showing the retracted state of the spool rod in Fig. 1, Fig. 3 is an I-Tff sectional view in Fig. 1, and Figs. 4 and 5 are a backfilling material supply system and a washing water supply system. Figure 6 showing another example of
The figure is a sectional view showing another example of the backfilling material injection part, showing the retracted state of the spool rod, Fig. 7 is a sectional view showing the protruding state of the spool rod, and Fig. 8 shows an example of a shield excavator. The cross-sectional side view, FIG. 9, is a cross-sectional view taken along the line ■-■ in FIG. 1... Shield tunneling machine, 2... Skin plate, 3
...Segment, 5...Protection tube, 6...Tail void, 7...Backfilling material injection port, 8...Backfilling material injection conduit, 8a...Outlet, 11...Spool rod, lla
... Spool, 12... Washing wood pipe line, 16... First solenoid valve, 17... Backfilling material supply pipe, 18... Backfilling material pump, 19... Backfilling material storage tank, 20...Second solenoid valve, 21...Washing water supply pipe, 22...Washing water pump,
23...Washing water storage tank, 24...Third solenoid valve, 25.
...Washing water discharge pipe, 26...Drain tank, 27...Hydraulic cylinder, 28...Detection rod, 29...First detector,
30...Second detector. Patent Applicant Hitachi Construction Machinery Co., Ltd. Agent Patent Attorney Tadashi Akimoto 11-year Ro U63-161296 (7) Figure 8 Figure 9
Claims (1)
、後端側に注入口壁部を有する保護管を設け、前記注入
口壁部に裏込材注入口を設けると共に、保護管内に裏込
材注入管路および洗浄水管路を構成し、裏込材注入管路
の出口の開閉切替えを行うスプールを前記裏込材注入口
に摺動可能に挿入し、そのスプールに連結したロッドに
摺動操作手段を連結し、前記ロッドのつき出し、引っこ
みにより裏込材注入管路の出口と裏込材注入口との連通
、洗浄水管路と裏込材注入管路の出口との連通の切替え
を行うようにしたシールド掘進機の裏込材注入装置にお
いて、前記裏込材注入管路の入口を第１電磁弁を具えた
裏込材供給管に接続し、前記洗浄水管路を第２電磁弁を
具えた洗浄水管路に接続し、かつ前記裏込材供給管の第
１の電磁弁出口側に第３電磁弁を具えた洗浄水排出管を
接続する一方、前記ロッドの引っこみ位置を検知する第
１検知器およびロッドのつき出し位置を検知する第２検
知器を設け、第１検知器から検知信号が出力されると第
１電磁弁が開、第２電磁弁および第３電磁弁が閉となり
、第２検知器から検知信号が出力されると第１電磁弁が
閉、第２電磁弁および第３電磁弁が開となるように構成
したことを特徴とするシールド掘進機の裏込材注入装置
。1. A protective tube having an injection port wall portion on the rear end side is provided on the outer peripheral wall of the skin plate forming the shield body, and a backfilling material injection port is provided in the injection port wall portion, and a backfilling material is inserted into the protection tube. A spool that configures the injection pipe and the cleaning water pipe and switches the outlet of the backfill material injection pipe to open and close is slidably inserted into the backfill material injection port, and a rod connected to the spool is slidably operated. The means are connected, and by protruding and retracting the rod, communication between the outlet of the backfilling material injection pipe and the backfilling material injection port, and communication between the washing water pipe and the outlet of the backfilling material injection pipe are switched. In the backfilling material injection device for a shield excavator, the inlet of the backfilling material injection pipe is connected to a backfilling material supply pipe equipped with a first solenoid valve, and the washing water pipe is connected to a second solenoid valve. and a cleaning water discharge pipe equipped with a third solenoid valve is connected to the first solenoid valve outlet side of the backing material supply pipe, while detecting the retracted position of the rod. A first detector that detects the protruding position of the rod and a second detector that detects the protruding position of the rod are provided, and when a detection signal is output from the first detector, the first solenoid valve opens, and the second solenoid valve and the third solenoid valve open. A shield tunneling machine characterized in that the first solenoid valve is closed and the second and third solenoid valves are opened when the first solenoid valve is closed and a detection signal is output from the second detector. Material injection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61306372A JPS63161296A (en) | 1986-12-24 | 1986-12-24 | Backfilling material injector for shield excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61306372A JPS63161296A (en) | 1986-12-24 | 1986-12-24 | Backfilling material injector for shield excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63161296A true JPS63161296A (en) | 1988-07-04 |
| JPH0430520B2 JPH0430520B2 (en) | 1992-05-21 |
Family
ID=17956250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61306372A Granted JPS63161296A (en) | 1986-12-24 | 1986-12-24 | Backfilling material injector for shield excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63161296A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0215698U (en) * | 1988-07-11 | 1990-01-31 | ||
| JPH0312995U (en) * | 1989-06-16 | 1991-02-08 |
-
1986
- 1986-12-24 JP JP61306372A patent/JPS63161296A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0215698U (en) * | 1988-07-11 | 1990-01-31 | ||
| JPH0312995U (en) * | 1989-06-16 | 1991-02-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0430520B2 (en) | 1992-05-21 |
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