JP2000303777A - Method and device for propulsion in clay layer - Google Patents
Method and device for propulsion in clay layerInfo
- Publication number
- JP2000303777A JP2000303777A JP11234999A JP11234999A JP2000303777A JP 2000303777 A JP2000303777 A JP 2000303777A JP 11234999 A JP11234999 A JP 11234999A JP 11234999 A JP11234999 A JP 11234999A JP 2000303777 A JP2000303777 A JP 2000303777A
- Authority
- JP
- Japan
- Prior art keywords
- muddy water
- mud
- pipe
- propulsion
- clay
- 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
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、粘土地盤でも効率
良く掘進のできる泥水掘進機の推進方法とその装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for driving a muddy excavator capable of efficiently excavating even on clay ground.
【０００２】[0002]
【従来技術】泥水加圧推進工法は、立坑周辺の地上に設
置した泥水処理装置から送泥管を通して泥水を先端の泥
水掘進機に圧送し、泥水掘進機先端の面板前面から泥水
を充填加圧して、面板前面の地山土圧や地下水圧に対抗
させて保持するとともに、面板の回転で地山を切削し、
掘削された掘削土を泥水とともに排泥管を通して地上の
泥水処理装置に環流させる工法である。この工法は、切
羽が密閉され、泥水によって地山の安定が図られている
ため、地下水の低下や地山の呼び込みによる沈下が防止
できるので、軟弱な土質に適している。また、掘削土が
泥水による連続した流体輸送方式となっているので、施
工速度が速く、工期の短縮や経済性に優れている。さら
に、近年は礫層地盤にも対応するために、泥水掘進機内
にアウターコーンとインナーコーンよりなるコーンクラ
ッシャーを装備して、礫をアウターコーンとインナーコ
ーンの間に取り込んで破砕しながら掘進していく礫対応
の泥水掘進機が開発され、礫層でも効率の良い推進施工
を可能とし、広範囲の推進施工に多く採用されている。2. Description of the Related Art In the muddy pressurization method, muddy water is pumped from a muddy water treatment device installed on the ground around a shaft to a mud drilling machine at the tip of the muddy machine, and the muddy water is filled and pressurized from the front surface of a face plate at the tip of the muddy machine. And hold against the ground pressure and groundwater pressure on the front of the faceplate, and cut the ground by rotating the faceplate.
In this method, the excavated soil is returned to the above-mentioned muddy water treatment equipment through mud pipes together with muddy water. This method is suitable for soft soil because the face is sealed and the ground is stabilized by muddy water, so that it is possible to prevent the groundwater from dropping and sinking due to the inflow of the ground. In addition, since the excavated soil is a continuous fluid transport system using muddy water, the construction speed is high, the construction period is shortened, and the economy is excellent. Furthermore, in recent years, in order to respond to the gravel layer ground, a cone crusher consisting of an outer cone and an inner cone is equipped in a mud drilling machine, and gravel is taken in between the outer cone and the inner cone and crushed and excavated. A mud drilling machine that can handle a large amount of gravel has been developed, enabling efficient propulsion work even in a gravel layer, and has been widely used for wide-range propulsion work.
【０００３】[0003]
【発明が解決しようとする課題】泥水加圧推進工法の開
発により、長距離の推進施工でも流体輸送方式による連
続した排土が行えるため、地山の切削も連続して行え、
効率の良い推進施工を可能とした。推進延長が長距離化
する場合、推進延長内での土質変化も多くなり、土質に
対応した泥水掘進機等の検討が必要となる。土質が、砂
層と粘土層に変化する場合は、泥水掘進機面板の開口率
や泥水の濃度を調整したりして対応が行われるが、粘着
力の大きい粘土層の場合には、面板前面やチャンバ内面
に粘土が付着し、切削が不能になったり、チャンバ内の
閉塞が発生する。土質が、礫層と粘土層に変化する場合
は、礫径を考慮して通常の泥水掘進機か礫対応の泥水掘
進機かが選定される。その要因は、地山の礫を原形のま
まで取り込むために、チャンバ内に礫が貯留されて詰ま
ったり、排泥管内のいろいろな箇所で閉塞したりして、
流体輸送が出来なくなるためである。また、大きな礫を
混在する場合は、通常の泥水掘進機の面板では、取込口
の開口率が小さく、チャンバ内へ取り込むことができな
く、面板前面に大礫を残したままの状態で掘進すること
となり、徐々に面板抵抗が増大し、掘進不能となるケー
スも発生するためである。粘土層内での礫対応の泥水掘
進機では、特に礫を破砕するために装備されたアウター
コーンやインナーコーンの壁面に粘土が付着し、インナ
ーコーン底部で頻繁に閉塞が起き、推進速度が著しく低
下したり、推進不能となる場合がある。With the development of the muddy water pressurized propulsion method, continuous earth removal by the fluid transport method can be performed even in long-distance propulsion construction, and ground cutting can be performed continuously.
Efficient propulsion construction was made possible. If the propulsion extension is made longer, the change in soil quality within the propulsion extension will increase, and it will be necessary to consider a muddy excavator that responds to the soil quality. If the soil changes to a sand layer and a clay layer, it is handled by adjusting the opening ratio of the mudhead machine and the concentration of muddy water.However, in the case of a clay layer with a large adhesive strength, Clay adheres to the inner surface of the chamber, making it impossible to cut or causing blockage in the chamber. If the soil changes to a gravel layer and a clay layer, a normal mud drilling machine or a mud drilling machine for gravel is selected in consideration of the gravel diameter. The reason is that in order to take in the gravel of the ground in its original form, the gravel is stored in the chamber and clogged, or clogged at various places in the mud pipe,
This is because the fluid cannot be transported. Also, when large gravel is mixed, the opening rate of the intake is small with the face plate of a normal mud drilling machine, it cannot be taken into the chamber, and excavation is performed with large gravel left in front of the face plate. This is because, in some cases, the resistance of the face plate gradually increases, and it becomes impossible to excavate. In a mud drilling machine that supports gravel in the clay layer, clay adheres to the wall of the outer cone and inner cone, which are especially equipped for crushing gravel, causing frequent blockage at the bottom of the inner cone, resulting in remarkable propulsion speed. It may drop or become unable to drive.
【０００４】本発明は、粘土層内での泥水推進施工にお
いて、泥水掘進機の面板やチャンバ内での閉塞を防止
し、効率の良い推進施工が行える推進方法を提するもの
である。[0004] The present invention provides a propulsion method capable of performing efficient propulsion construction by preventing blockage in a face plate and a chamber of a mud drilling machine in muddy water construction in a clay layer.
【０００５】[0005]
【課題を解決するための手段】すなわち本発明は、立坑
周辺に設置した泥水処理装置から送排泥管を立坑を経て
推進管内を通して掘進機に接続し、送泥管より送られた
泥水により地山を保持させながら、掘進機先端で掘削し
た掘削土を泥水とともに排泥管から泥水処理装置に環流
させる泥水掘進機の推進方法において、立坑周辺に設置
した前記泥水処理装置の調整槽内の取出口に粗粒材を投
入するための投入装置を設置し、前記調整槽の取出口か
ら送泥ポンプによって送泥管を通して粗粒材と泥水を泥
水掘進機の先端部分で噴射させ、切削されて面板やチャ
ンバ内に付着した粘土を掻き落とし、粗流材や泥水とと
もに前記排泥管を通して泥水処理装置に環流することを
特徴とする粘土層の推進方法である。さらに、上部に所
定の量の粗流材を貯留できるホッパーと、前記ホッパー
の下方から泥水処理装置の調整槽内を通り送泥ポンプへ
の吸入口までを連結した接続管とにより構成される投入
装置である。That is, according to the present invention, a mud pipe is connected from a muddy water treatment device installed around a shaft to an excavator through a shaft and through a propulsion pipe. In a method for propelling a muddy excavator in which excavated soil excavated at the excavator tip is returned to a muddy water treatment device together with muddy water while holding a mountain, the excavated soil in an adjustment tank of the muddy water treatment device installed around a shaft is provided. A charging device for charging the coarse-grained material is installed at the outlet, and the coarse-grained material and the muddy water are sprayed from the outlet of the adjusting tank through a mud pipe by a mud feed pump at a tip portion of the mud drilling machine, and cut. A clay layer propulsion method characterized in that clay attached to a face plate or a chamber is scraped off and returned to a muddy water treatment device through the drainage pipe together with rough flow material and muddy water. Further, a charging hopper is formed by a hopper capable of storing a predetermined amount of rough flow material at an upper portion thereof, and a connecting pipe connecting a lower portion of the hopper to a suction port of a mud pump through a regulating tank of the muddy water treatment apparatus. Device.
【０００６】泥水処理装置としては、従来使用されてい
る泥水処理機、アンダタンク、余剰泥水槽、調整槽等か
らなる装置が用いられ、泥水掘進機に泥水を圧送するた
めに泥水を貯留した調整槽と送泥ポンプの吸入口とをつ
なぐ取出口には、上部に所定の量の粗粒材を貯留できる
ホッパーを備えた接続管が差し込まれている。ホッパー
と接続管の間には、一定量の粗粒材投入や投入停止が行
えるようにバルブ等を設けておくこともできる。[0006] As the muddy water treatment device, a device including a conventionally used muddy water treatment device, an under tank, an excess muddy water tank, and an adjusting tank is used. A connection pipe having a hopper capable of storing a predetermined amount of coarse particles is inserted in an upper portion of an outlet connecting the tank and the suction port of the mud pump. A valve or the like may be provided between the hopper and the connection pipe so that a certain amount of coarse material can be charged or stopped.
【０００７】泥水処理装置から泥水掘進機まで配管され
る送排泥管は、従来技術と同じ方法でよく、推進管内で
は、測量等の作業の支障とならないように、下方に並列
して配管される。The feeding and discharging pipes connected from the muddy water treatment apparatus to the mud drilling machine may be formed in the same manner as in the prior art. In the propulsion pipes, the pipes are piped in parallel downward so as not to hinder work such as surveying. You.
【０００８】泥水掘進機側に接続される送排泥管は、通
常の泥水掘進機では、隔壁部までの接続となっている
が、送泥管だけをチャンバ内の途中まで延長して粗粒材
が面板前面に噴出しやすくする手段をとることも可能で
ある。また、礫泥水掘進機の場合は、チャンバ内のアウ
ターコーンまで送泥管が接続され、アウターコーンの所
定の位置に設けられた斜板の噴射口から前方に、泥水と
粗粒材が噴射される。泥水や粗粒材の噴射位置を上部に
設けることにより、上部から下部へと泥水や粗粒を均一
分散させることができる。The mud pipe connected to the mud pier is connected to the partition wall in a normal mud pier, but only the mud pipe is extended halfway into the chamber to form coarse particles. It is also possible to take measures to make it easier for the material to be ejected to the front of the face plate. In the case of a gravel mud drilling machine, a mud pipe is connected to the outer cone in the chamber, and muddy water and coarse-grained material are injected forward from the injection port of the swash plate provided at a predetermined position of the outer cone. You. By providing the injection position of the muddy water and the coarse particles at the upper part, the muddy water and the coarse particles can be uniformly dispersed from the upper part to the lower part.
【０００９】送泥ポンプにより、送泥管からチャンバ内
で噴射された粗粒材は、面板前面やチャンバ内に分布さ
れ、面板の旋回や泥水の循環により流動する泥水ととも
に、面板やチャンバ内壁に付着した粘土を掻き落とし、
面板やチャンバ内の閉塞を防止し、効率の良い地山の切
削と掘削土の連続排土を可能とする。The coarse-grained material injected into the chamber from the mud pipe by the mud pump is distributed to the front surface of the face plate and the chamber, and flows along with the mud flowing through the rotation of the face plate and the circulation of the mud to the face plate and the inner wall of the chamber. Scraping off the attached clay,
Blocking of the face plate and the chamber is prevented, and efficient ground cutting and continuous removal of excavated soil are enabled.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施形態を図面を
基に説明する。図１は、本発明の粘土層の推進方法を説
明する全体図である。発進立坑２３周辺の地上部には、
泥水処理装置１が設置されている。泥水処理装置１は、
礫泥水掘進機１２で掘削され、地上に排出された土砂と
泥水を分離し、泥水を再度送泥水として繰り返し利用さ
せるための装置で、掘削土砂の性状、送泥水の性状、工
事規模及び泥水処理の制約等によって決定される。主要
な装置としては、砂礫と泥水を分離させる泥水処理機２
と、送泥する泥水の比重調整を行い貯留するための調整
槽３と、調整槽３のオーバー泥水を処理する余剰泥水槽
４等に分けられる。調整槽３の取出口５には、バルブを
経て送泥ポンプ１０の吸入口が接続され、吐出口は送泥
管１１に接続されている。前記調整槽５には、壁面に沿
って鉛直に接続管８が設けられ、一端は調整槽５内の取
出口５に挿入され、他端は所定の量の粗粒材２１を貯留
できるホッパー７に接続された投入装置６が設置されて
いる。粗粒材２１の投入量を調整したり、停止したりす
るためのバルブ８がホッパー７と接続管８の接続部に設
けられている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall view for explaining a method for propelling a clay layer according to the present invention. On the ground part around the starting shaft 23,
A muddy water treatment device 1 is installed. The muddy water treatment device 1
This is a device for separating muddy water and muddy water excavated by the gravel mud drilling machine 12 and discharged to the ground, and using the muddy water again as muddy water. The properties of the excavated muddy water, properties of muddy water, construction scale and muddy water treatment Is determined by the restrictions and the like. The main equipment is a muddy water treatment machine 2 that separates gravel and muddy water.
And an adjusting tank 3 for adjusting and storing the specific gravity of the mud to be sent, and an excess mud tank 4 for treating the excess mud in the adjusting tank 3. The suction port of the mud pump 10 is connected to the outlet 5 of the adjusting tank 3 via a valve, and the discharge port is connected to the mud pipe 11. The adjusting tank 5 is provided with a connecting pipe 8 vertically along the wall surface, one end of which is inserted into the outlet 5 in the adjusting tank 5, and the other end of which is a hopper 7 capable of storing a predetermined amount of coarse particles 21. Is installed. A valve 8 for adjusting or stopping the amount of the coarse-grained material 21 is provided at a connection between the hopper 7 and the connection pipe 8.
【００１１】送泥管１１は、発進立坑２３内の立坑バイ
パス２２を経て推進管２４内を経て、礫泥水掘進機１２
の隔壁１９に接続されている。礫泥水掘進機１２は、先
端に開口率を大きくした面板１５が装備され、その後方
のチャンバ２０内には、礫を破砕するアウターコーン１
７とインナーコーン１６が装備されている。アウターコ
ーン１７は、礫泥水掘進機１２の外殻と斜板によって空
間が形成され、隔壁１９まで圧送された泥水が通れるよ
うになっている。アウターコーン１７の上部の斜板に
は、噴射口１８が設けられ、アウターコーン１７内に充
満された泥水と粗粒材２１を前方へ噴射する。The mud feeding pipe 11 passes through a shaft 22 in a starting shaft 23, passes through a propulsion pipe 24, and passes through a gravel mud drilling machine 12.
Are connected to the partition wall 19. The gravel mud drilling machine 12 is equipped with a face plate 15 having a large opening ratio at the tip, and an outer cone 1 for crushing gravel is provided in a chamber 20 behind the face plate 15.
7 and an inner cone 16 are provided. The outer cone 17 has a space formed by the outer shell and the swash plate of the gravel mud digging machine 12, and allows the muddy water pumped to the partition wall 19 to pass therethrough. An injection port 18 is provided in the upper swash plate of the outer cone 17 to inject muddy water and coarse particles 21 filled in the outer cone 17 forward.
【００１２】チャンバ２０内に取り込まれた掘削土や泥
水及び粗粒材２１は、発進立坑２３内に設置した排泥ポ
ンプ１４により吸入され、隔壁１９に接続された排泥管
１３から立坑バイパス２２を経て地上の泥水処理装置１
に環流される。環流された掘削や泥水及び粗粒材２１
は、泥水処理機２により粗粒材２１と泥水に分離され
る。分離された粗粒材２１は、ホッパー7に戻し、再利用
することができる。The excavated soil, muddy water and coarse material 21 taken into the chamber 20 are sucked by a mud pump 14 installed in a starting shaft 23, and from a mud pipe 13 connected to a partition 19 to a shaft 22. Mud water treatment device 1 on the ground
It is recirculated. Recirculated drilling, muddy water and coarse material 21
Is separated into coarse particles 21 and muddy water by the muddy water treatment machine 2. The separated coarse material 21 can be returned to the hopper 7 and reused.
【００１３】本実施形態では、投入装置６を調整槽３内
に設置する方法を開示したが、送泥管１１の途中に投入
装置６を接続し、送泥管１１内にポンプ等により圧送す
る方法を用いることも可能である。In the present embodiment, the method of disposing the charging device 6 in the adjusting tank 3 is disclosed. However, the charging device 6 is connected in the middle of the mud pipe 11 and the pressure is fed into the mud pipe 11 by a pump or the like. It is also possible to use the method.
【００１４】泥水掘進機として礫泥水掘進機１２を例示
したが、砂層と粘土層の場合は通常の泥水掘進機を使用
することもできる。この場合、泥水掘進機のチャンバ２
０内には、アウターコーン１７やインナーコーン１６の
装備がないため、送泥管１１を隔壁よりも前方に延長し
て、粗粒材２１が面板１５前面にでやすくする方法が採
られる。Although the gravel mud machine 12 is exemplified as the mud machine, a normal mud machine may be used in the case of a sand layer and a clay layer. In this case, the chamber 2 of the mud machine
Since there is no outer cone 17 or inner cone 16 in 0, a method is adopted in which the mud feed pipe 11 is extended forward of the partition wall so that the coarse-grained material 21 can be easily exposed to the front surface of the face plate 15.
【００１５】粗粒材２１としては、砂利や砕石等の骨材
が用いられ、チャンバ２０内や送排泥管１１，１３内で
閉塞を起こさない程度の径までとする。また、粗粒材２
１を入れる配合量は、粘土の性質によって変化させるこ
とが必要である。Aggregate such as gravel or crushed stone is used as the coarse-grained material 21, and the diameter of the coarse-grained material 21 is set to a value that does not cause blockage in the chamber 20 and the inside of the pipes 11 and 13. Also, coarse-grained material 2
It is necessary to change the compounding amount of 1 depending on the properties of the clay.
【００１６】次に粘土層における推進方法について説明
する。調整槽３内で調整された泥水は、取出口５より送
泥ポンプ１０により吸入され、吐出口より送泥管１１に
送られる。この時、取出口５にはホッパー７から接続管
８を経て粗粒材２１が投入されており、粗粒材２１は泥
水とともに送泥管１１に送られる。泥水と粗粒材２１
は、発進立坑２３内の立坑バイパス２２を経て、推進管
２４内から礫泥水掘進機１２の隔壁１９を通り、アウタ
ーコーン１７内に圧送され、アウターコーン１７の上部
の斜板に設けた噴射口１８よりチャンバ２０内の前方に
噴射される。面板１５前面やチャンバ２０内に噴射され
た粗粒材２１は、面板１５の旋回や泥水の循環により流
動し、面板１５やチャンバ２０内に付着した粘土を掻き
落とす。掻き落とされた粘土と粗粒材２１は、排泥管１
３より吸入され、立坑バイパス２３を経て地上の泥水処
理装置１に環流され、粗粒材と泥水に分離される。Next, a method of propelling the clay layer will be described. The muddy water adjusted in the adjusting tank 3 is sucked by the mud pump 10 from the outlet 5 and sent to the mud pipe 11 from the outlet. At this time, the coarse material 21 is supplied to the outlet 5 from the hopper 7 via the connection pipe 8, and the coarse material 21 is sent to the mud pipe 11 together with the muddy water. Muddy water and coarse-grained material 21
Is pumped from the inside of the propulsion pipe 24 through the partition wall 19 of the gravel mud digging machine 12 into the outer cone 17 through the shaft 22 in the starting shaft 23, and is provided on the swash plate on the upper part of the outer cone 17. The fuel is injected forward from inside the chamber 20 from 18. The coarse-grained material 21 injected into the front surface of the face plate 15 and into the chamber 20 flows due to the rotation of the face plate 15 and the circulation of the mud, and scrapes off the clay adhered to the face plate 15 and the chamber 20. The scraped clay and coarse-grained material 21 are supplied to the sludge pipe 1
3 and is returned to the muddy water treatment apparatus 1 on the ground via the shaft bypass 23 to be separated into coarse particles and muddy water.
【００１７】[0017]
【発明の効果】以上のように、本発明の粘土層の推進方
法およびその装置により、泥水とともに圧送された粗粒
材が、流動しながら泥水掘進機の面板やチャンバ内壁面
に付着した粘土を確実に掻き落として泥水とともに排泥
管へ排出していくため、従来のように面板やチャンバ内
閉塞がなくなり、効率の良い推進施工が可能となった。
特に、礫泥水推進施工の場合には、粗粒材がアウターコ
ーンやインナーコーンの表面に付着した粘土を書き落と
しながら搬送していくため、度々発生していたコーン閉
塞がなくなり、推進速度が著しく向上した。As described above, according to the clay layer propulsion method and apparatus of the present invention, the coarse particles pumped together with the muddy water are used to remove the clay adhering to the face plate or the inner wall surface of the chamber while flowing. Since it was scraped off and discharged into the drainage pipe together with the muddy water, blockage in the face plate and the chamber was eliminated as in the past, and efficient propulsion construction became possible.
In particular, in the case of gravel muddy water propulsion construction, coarse particles are transferred while writing down the clay attached to the surface of the outer cone or inner cone, eliminating the frequent blockage of cones and significantly improving the propulsion speed did.
【００１８】[0018]
【図１】本発明の粘土層の推進方法を説明する全体図で
ある。FIG. 1 is an overall view illustrating a clay layer propulsion method of the present invention.
１ 泥水処理装置 ２ 泥水処理機 ３ 調整槽 ４ 余剰泥水槽 ５ 取出口 ６ 投入装置 ７ ホッパー８ 接続管 ９ バルブ １０ 送泥ポンプ １１ 送泥管 １２ 泥水掘進機 １３ 排泥管 １４ 立坑バイパス １５ 面板 １６ インナーコーン １７ アウターコーン １８ 噴射口 １９ 隔壁 ２０ チャンバ ２１ 粗粒材 ２２ 立坑バイパス ２３ 発進立坑 ２４ 推進管 DESCRIPTION OF SYMBOLS 1 Muddy water treatment apparatus 2 Muddy water treatment machine 3 Adjustment tank 4 Excess muddy water tank 5 Outlet 6 Input device 7 Hopper 8 Connecting pipe 9 Valve 10 Mud pump 11 Mud pipe 12 Mud digging machine 13 Drain pipe 14 Vertical bypass 15 Face plate 16 Inner cone 17 Outer cone 18 Injection port 19 Partition wall 20 Chamber 21 Coarse-grained material 22 Vertical shaft bypass 23 Starting shaft 24 Propulsion pipe
Claims (2)
泥管を立坑を経て推進管内を通して掘進機に接続し、送
泥管より送られた泥水により地山を保持させながら、掘
進機先端で掘削した掘削土を泥水とともに排泥管から泥
水処理装置に環流させる泥水掘進機の粘土層を推進する
方法において、立坑周辺に設置した前記泥水処理装置の
調整槽内の取出口に粗粒材を投入するための投入装置を
設置し、前記調整槽の取出口から送泥ポンプを経て送泥
管を通して粗粒材と泥水を泥水掘進機の先端部分で噴射
させ、切削されて面板やチャンバ内に付着した粘土を掻
き落とし、粗流材や泥水とともに前記排泥管を通して泥
水処理装置に環流することを特徴とする粘土層の推進方
法。The present invention relates to a muddy water treatment device installed around a shaft, a mud pipe being connected to an excavator through a propulsion pipe through a shaft, and holding the ground by mud water sent from the mud pipe. In the method of propelling a clay layer of a mud digging machine, which recirculates excavated soil excavated with muddy water from a mud pipe to a muddy water treatment device, coarse particles are supplied to an outlet in an adjustment tank of the muddy water treatment device installed around a shaft. Is installed, a coarse-grained material and muddy water are sprayed from the outlet of the adjusting tank through a mud pump through a mud feed pump at a tip portion of a mud drilling machine, and cut into a face plate or a chamber. A method for propelling a clay layer, comprising: scraping off the clay adhered to a muddy water;
パーと、前記ホッパーの下方から泥水処理装置の調整槽
内を通り送泥ポンプへの吸入口までを連結した接続管と
により構成される請求項１記載の投入装置。2. A hopper capable of storing a predetermined amount of rough flow material at an upper portion thereof, and a connecting pipe connecting a lower portion of the hopper to a suction port of a mud pump through a regulating tank of the muddy water treatment apparatus. The dosing device according to claim 1, wherein the charging device is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11234999A JP3418567B2 (en) | 1999-04-20 | 1999-04-20 | Clay layer propulsion method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11234999A JP3418567B2 (en) | 1999-04-20 | 1999-04-20 | Clay layer propulsion method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000303777A true JP2000303777A (en) | 2000-10-31 |
| JP3418567B2 JP3418567B2 (en) | 2003-06-23 |
Family
ID=14584476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11234999A Expired - Fee Related JP3418567B2 (en) | 1999-04-20 | 1999-04-20 | Clay layer propulsion method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3418567B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004003209A (en) * | 2002-05-31 | 2004-01-08 | Fukuda Corp | Method for replacing existing pipe |
| CN109113753A (en) * | 2018-09-30 | 2019-01-01 | 中铁工程装备集团有限公司 | A kind of device and method for abolishing cutterhead mud cake |
-
1999
- 1999-04-20 JP JP11234999A patent/JP3418567B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004003209A (en) * | 2002-05-31 | 2004-01-08 | Fukuda Corp | Method for replacing existing pipe |
| CN109113753A (en) * | 2018-09-30 | 2019-01-01 | 中铁工程装备集团有限公司 | A kind of device and method for abolishing cutterhead mud cake |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3418567B2 (en) | 2003-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7085505B2 (en) | Shield excavator and shield method | |
| JP6207025B2 (en) | In-flight disposal system for underground excavation machine | |
| KR101796929B1 (en) | The shield tunnel excavator and it's tunnel excavation method with reverse injection of underground water | |
| JP5600290B2 (en) | Mud pressure shield machine | |
| JP2000303777A (en) | Method and device for propulsion in clay layer | |
| JP2006016934A (en) | Shield excavator | |
| JP2003239686A5 (en) | ||
| JP4332080B2 (en) | Excavation soil treatment equipment in shield excavator | |
| JP2003239686A (en) | Pipe-jacking shield method and pipe-jacking shield machine | |
| JP2004156276A (en) | Back-filling method for slurry shield method | |
| CN211974972U (en) | Density-adjustable muddy water and soil pressure dual-mode shield tunneling machine | |
| JPH085134Y2 (en) | Sediment carry-out device | |
| JP3124368B2 (en) | Earth pressure shield excavation method | |
| JPH07116909B2 (en) | Water pressure balance type pumping and discharging shield method and shield machine | |
| JP3025959U (en) | Sludge treatment equipment for high-pressure mud pressure propulsion method | |
| JP4280889B2 (en) | Excavation soil hydraulic transportation equipment in earth pressure shield method | |
| JPH04187299A (en) | Treatment of muddy water of the like and device therefor | |
| JP2824041B2 (en) | Earth removal method and device in earth pressure shield method | |
| JPS6152316B2 (en) | ||
| JPH10317878A (en) | Mud shield method | |
| JP3150298B2 (en) | Tunnel excavation method and shield machine | |
| JP2779888B2 (en) | Pulsed pneumatic method and equipment for earth and sand | |
| JPS5883797A (en) | Mud type shielding excavation construction method and its device | |
| JP3359027B2 (en) | Construction method of ground improvement body | |
| JPH07158387A (en) | Driving method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |