JP2011001740A - Water take-in apparatus - Google Patents

Water take-in apparatus Download PDF

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JP2011001740A
JP2011001740A JP2009145289A JP2009145289A JP2011001740A JP 2011001740 A JP2011001740 A JP 2011001740A JP 2009145289 A JP2009145289 A JP 2009145289A JP 2009145289 A JP2009145289 A JP 2009145289A JP 2011001740 A JP2011001740 A JP 2011001740A
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water
excavator
cylinder
end side
buried pipe
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Shigeki Kannyo
重樹 勘如
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Kidoh Construction Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a water take-in apparatus for safely and efficiently collecting a boring machine that has reached underwater in a water bottom jacking method.SOLUTION: A closed space formed by partitioning the interior of a separation cylinder axially separated in a front cylinder and a rear cylinder, by a front bulkhead and a rear bulkhead with a predetermined space in an axial direction, is formed between the rear inside of a cylindrical frame forming an outer shell of the boring machine, or the rear end side of the boring machine, and the front end side of a buried pipe row. The frame or the separation cylinder between the front bulkhead and rear bulkhead is circumferentially cut or separated. The water take-in apparatus is used when collecting the boring machine located in front of the cut or separated part, from the water in a state of partitioning with the front bulkhead. The water take-in apparatus includes a partition valve installed on the front end side of the buried pipe row; a take-in pipe extended from one end of the partition valve to penetrate the rear bulkhead and provided penetrating the frame or the separation cylinder; and a discharge pipe extended from the other end of the partition valve and provided penetrating the rear bulkhead.

Description

本発明は、川底や海底を掘削して水中の到達立坑等に到達した掘進機を安全に効率良く回収するための水取込装置に関するものである。   The present invention relates to a water intake device for safely and efficiently recovering an excavator that has excavated a riverbed or seabed to reach an underwater vertical shaft or the like.

近年、川底や海底に取水管路や電力管路等を構築するために水底に埋設管を敷設する水底推進工法が開発されている。掘進機は、水底に設置された到達立坑や取水桝内に押し出すようにして水中より回収される。   In recent years, a submarine propulsion method has been developed in which a buried pipe is laid on the bottom of the water in order to construct an intake pipe or a power pipe on the bottom of the river or the sea. The excavator is recovered from the water in such a way that it is pushed out into a vertical shaft or intake port installed at the bottom of the water.

回収技術しては、掘進機の後端側と埋設管列の前端側との間に軸方向に前筒と後筒を嵌脱自在に連結した分離筒を設置し、軸方向に所定の間隔を隔てて前筒部の前隔壁と後筒部の後隔壁とで仕切った密閉空間を形成し、これらの前筒部と後筒部との間で分離筒を軸方向に離脱させることで、掘進機を回収するようにした技術が開発されている(特許文献1参照)。他の回収技術としては、掘進機の外殻を成す筒状のフレ−ム後方の内部に、軸方向に所定の間隔を隔てて前隔壁と後隔壁とで仕切った密閉空間を形成し、その密閉空間の中間のフレ-ムを水中より切断する方法が開発されている(特許文献2参照)。 The recovery technique is to install a separation cylinder in which the front and rear cylinders are detachably connected in the axial direction between the rear end side of the excavator and the front end side of the buried pipe row, and at a predetermined interval in the axial direction. By forming a sealed space partitioned by the front partition wall of the front cylinder part and the rear partition wall of the rear cylinder part across, separating the separation cylinder in the axial direction between these front cylinder part and rear cylinder part, A technique for collecting the excavator has been developed (see Patent Document 1). Another recovery technique is to form a sealed space partitioned by a front partition and a rear partition at a predetermined interval in the axial direction inside the cylindrical frame that forms the outer shell of the excavator. A method for cutting an intermediate frame in a sealed space from underwater has been developed (see Patent Document 2).

回収手順としては、掘進機が到達立坑内の所定の位置に到達すると、掘進機の後端側の分離筒の前後の隔壁に装備した水密扉を閉めた後、分離筒に設置したジャッキを伸長することにより、軸方向に前筒と後筒とを離脱させて掘進機と埋設管列を分離させる。掘進機の後端側は前筒部の前隔壁によって仕切られた状態となっており、埋設管列の前端側は後筒部の後隔壁によって仕切られた状態となって密閉されている。前記した筒状のフレ−ム後方の密閉空間の場合も同様の手順で前隔壁と後隔壁の水密扉が閉められ、フレーム中間を切断することによって、掘進機と埋設管列が分離させる。   As a recovery procedure, when the excavator reaches a predetermined position in the reaching shaft, the watertight doors provided on the partition walls before and after the separation cylinder on the rear end side of the excavator are closed, and then the jack installed on the separation cylinder is extended. By doing so, the front cylinder and the rear cylinder are separated in the axial direction to separate the excavator and the buried pipe row. The rear end side of the excavator is in a state of being partitioned by a front partition wall of the front cylinder portion, and the front end side of the buried pipe row is in a state of being partitioned by the rear partition wall of the rear cylinder portion and sealed. In the case of the sealed space behind the cylindrical frame described above, the watertight doors of the front partition and the rear partition are closed in the same procedure, and the middle of the frame is cut to separate the excavator and the buried pipe line.

特開2007-146542号公報JP 2007-146542 A 特開2005-126991号公報JP 2005-126991 A

前記した掘進機の回収方法では、分離筒の切り離しとともに川水や海水が一気に分離筒内に浸水することとなり、前隔壁と掘進機及び後隔壁と埋設管列の止水性が損なわれていた場合には、掘進機や埋設管列内に川水や海水が浸水しても対処できなく、その後の切離し作業が不可能となるような大きなトラブルとなる。また、切離し当初は、分離筒内には水圧が発生していないため、掘進機先端に加わる大きな水圧によって掘進機が後方に押されて不安定に移動したりすることによって、油圧機器や計測機器が破損するという問題も発生している。
また、掘進機の外殻を成す筒状のフレ−ム後方の内部に密閉空間を形成する方法では、フレーム内部に水を流入させるための穴がフレ−ムに形成され、フレーム切断前に潜水夫によって水中より密閉空間に水を充満させる方法が採用されているが、前記回収方法と同様に前隔壁と掘進機及び後隔壁と埋設管列の止水性が損なわれていた場合には対処できないという問題がある。このため本発明は、水中の到達立坑等に到達した掘進機を安全に効率良く回収するための水取込装置を提供することである。
In the above-described excavator recovery method, river water and seawater are submerged in the separation cylinder at the same time as the separation cylinder is cut off, and the water stoppage of the front bulkhead, the excavator, the rear bulkhead, and the buried pipe row is impaired. However, even if river water or seawater is flooded in the excavator or the buried pipe line, it cannot be dealt with, and it becomes a serious trouble that makes it impossible to perform subsequent separation work. In addition, since no water pressure is generated in the separation cylinder at the beginning of the separation, the excavator is pushed backward due to the large water pressure applied to the tip of the excavator and moves in an unstable manner. Has also been damaged.
Also, in the method of forming a sealed space inside the cylindrical frame that forms the outer shell of the excavator, a hole for allowing water to flow into the frame is formed in the frame, and the diving is performed before cutting the frame. A method of filling the sealed space with water from the water by the husband is adopted, but it can not cope when the water stoppage of the front bulkhead and the excavator and the rear bulkhead and the buried pipe row is impaired in the same manner as the above recovery method There is a problem. For this reason, this invention is providing the water intake device for collect | recovering the excavation machine which reached | attained the underground shaft etc. in water safely and efficiently.

本発明は、掘進機の外殻を成す筒状のフレ−ム後方の内部または掘進機の後端側と埋設管列の前端側との間に軸方向に前筒と後筒とに分離される分離筒の内部を、軸方向に所定の間隔を隔てて前隔壁と後隔壁とで仕切った密閉空間を形成し、これらの前隔壁と後隔壁との間の前記フレ−ムまたは前記分離筒を周方向に切断または分離し、その切断・分離ケ所よりも前方の掘進機を、前隔壁によって仕切った状態で水中から回収するときの水取込装置であって、
埋設管列の前端側に仕切弁を設置し、前記仕切弁の一端は前記後隔壁を貫通して延長し前記フレ−ムまたは分離筒に貫設した取込用配管材と、前記仕切弁の他端は前記後隔壁に貫設した吐出用配管材とにより構成される水取込装置である。
The present invention is divided into a front cylinder and a rear cylinder in the axial direction inside the rear of the cylindrical frame forming the outer shell of the excavator or between the rear end side of the excavator and the front end side of the buried pipe row. Forming a sealed space in which the inside of the separation cylinder is partitioned by a front partition wall and a rear partition wall at a predetermined interval in the axial direction, and the frame or the separation cylinder between the front partition wall and the rear partition wall Is a water intake device for recovering from the water in a state where the excavator in front of the cutting / separating point is partitioned by a front partition,
A gate valve is installed on the front end side of the buried pipe line, and one end of the gate valve extends through the rear partition wall and extends through the frame or the separation cylinder, The other end is a water intake device constituted by a discharge piping material penetrating the rear partition wall.

掘進機は、切羽と作業空間が隔壁で仕切られた密閉型推進工法が採用され、地下水圧等に耐える水密構造や耐水構造を備えており、水中に推進させても特に問題はない。密閉型推進工法には泥水式、土圧式、泥濃式があるが、水底推進工法には掘削した土砂の排出がチャンバ内から泥水とともに送排泥設備によって坑外へと連続搬出できる泥水式推進工法が、最も適している。   The excavator employs a closed-type propulsion method in which the face and work space are partitioned by a partition wall, and has a watertight structure and a water-resistant structure that can withstand underground water pressure. There are mud type, earth pressure type and mud type in the closed type propulsion method, but in the submarine type propulsion method, the mud type propulsion method can discharge the excavated earth and sand from the chamber together with the muddy water to the outside of the mine with the mud drainage equipment. The construction method is most suitable.

掘進機と埋設管列、掘進機と分離筒の連結は、一般に端部同士を嵌合させて連結する方法が用いられる。そのため、両端部には嵌合用の段差や凹凸構造が設けられている。   The connection between the excavator and the buried pipe row, and the connection between the excavator and the separation cylinder is generally performed by fitting the end portions together. Therefore, both ends are provided with steps for fitting and uneven structures.

フレーム後方の内部や分離筒の内部に所定の間隔を隔てて設けられる前隔壁と後隔壁は、フレーム内壁や分離筒内壁との水密性を確保するとともに、切断・分離後にも水圧によって変形しないように、溶接等によって強固に固設されている。前後の隔壁には、通行可能な開口を設けこの開口を開閉自在に閉鎖する水密扉を設けておくことにより、前後の空間が確実に水密隔離された状態と、互いに行き来が自由な状態とを、必要に応じて設定することが可能となる。 The front partition wall and the rear partition wall provided at a predetermined interval inside the rear of the frame and inside the separation cylinder ensure water tightness with the inner wall of the frame and the separation cylinder, and do not deform due to water pressure after cutting and separation. Further, it is firmly fixed by welding or the like. The front and rear bulkheads are provided with water-permeable doors that can be opened and closed so that the front and rear spaces are isolated from each other in a water-tight manner and the state in which they can freely go back and forth. It becomes possible to set as required.

埋設管列の前端側に設置される仕切弁は、川水や海水等の流体を遮断するためのもであり、一般に用いられているゲートバルブやボールバルブ等を採用すればよい。 The gate valve installed on the front end side of the buried pipe row is for shutting off fluids such as river water and seawater, and generally used gate valves and ball valves may be employed.

取込用配管材と吐出用配管材は、埋設管位置の水圧に耐えるものでよく、通常用いられている鋼製の管材を採用すればよい。仕切弁の設置は、後隔壁の支障とならない位置に設置すればよい。設置数は、効率の良い注水を行うために埋設管径が大きくなるにつれて、設置個所を増加させていく。 The piping material for intake and the piping material for discharge may withstand the water pressure at the buried pipe position, and a steel pipe material that is usually used may be adopted. The gate valve may be installed at a position that does not hinder the rear partition wall. The number of installations will be increased as the buried pipe diameter increases in order to perform efficient water injection.

本発明の水取込装置は、掘進機が所定の到達位置に到着すると、前の隔壁と後の隔壁の水密扉を閉鎖し、埋設管列の前端側に設置した仕切弁を開くことによって、取込用配管材から川水または海水を取り込み、仕切弁を通して吐出用配管材へと移動させて、前後の隔壁に形成された密閉空間内に水を確実に充満させることができる。取込み作業は、埋設管列の前端側である作業環境の良い大気圧内で行えるとともに、前後の隔壁の止水性に異常がある場合は、仕切弁を閉めて水の取込みを中止し、前後の隔壁で形成された密閉空間内に注水された水を排水した後、水密扉を開放して漏水個所等の補修等が行える。   When the excavator arrives at a predetermined arrival position, the water intake device of the present invention closes the watertight doors of the front partition and the rear partition, and opens the gate valve installed on the front end side of the buried pipe row, River water or seawater is taken from the intake piping material and moved to the discharge piping material through the gate valve, so that the sealed space formed in the front and rear partition walls can be reliably filled with water. The uptake operation can be performed in the atmospheric pressure with good working environment on the front end side of the buried pipe line, and if there is an abnormality in the water stoppage of the front and rear partition walls, the gate valve is closed and the water intake is stopped. After draining the water poured into the sealed space formed by the partition wall, the watertight door can be opened to repair the leaking point.

川底や海底を掘削して水中の到達立坑等に到達した掘進機を回収するための水取込装置であって、掘進機の回収前に前隔壁と後隔壁との間に設けた密閉空間内に、埋設管内から川水や海水である水Wを安全に取り込み、掘進機を効率良く確実に回収する水取込技術を実現した。   A water intake device for excavating the riverbed and seabed to recover the undercarriage reaching the underwater shaft, etc., in a sealed space provided between the front bulkhead and the rear bulkhead before the excavator is recovered In addition, we have realized water intake technology that safely captures water W, which is river water and seawater, from the buried pipe and efficiently recovers the excavator.

図1は、本発明の水取込装置を装備した後隔壁を説明する正面図である。掘進機の先端には、外殻の先端開口部内にカッタヘッドが装備されている。カッタヘッドは中央部で回転軸によって軸支され、後方に装備した駆動機構によって回転力がカッタヘッドに伝達される。
掘進機の外殻を成す筒状のフレ-ム後方の内部または掘進機の後端側と埋設管列の前端側との間に軸方向に前筒と後筒とに分離される分離筒1の内部を、軸方向に所定の間隔を隔てて前隔壁(図示省略)と後隔壁2とで仕切った密閉空間7を形成する。前隔壁と後隔壁2には、通行可能な開口を中央部分に設け、この開口を開閉自在に封鎖する水密扉8を設けることによって、前後の隔壁によって形成された密閉空間7が確実に水密隔離された状態と、互いに行き来が自由な状態とを、必要に応じて設定することができる。後隔壁2の埋設管列側には、上部と右側の2ケ所に水取込装置3が設置されている。また、上部の水取込装置3の支障とならない位置には、密閉空間7から後隔壁3を貫通して埋設管列側に延長した配管材に連結したエア-抜用仕切弁10が設置されている。さらに、下部には、密閉空間7から後隔壁3を貫通して埋設管列側に延長した配管材に連結した排水用仕切弁9が設置されている。
FIG. 1 is a front view for explaining a rear partition equipped with the water intake device of the present invention. At the tip of the excavator, a cutter head is provided in the tip opening of the outer shell. The cutter head is pivotally supported by a rotating shaft at the center, and the rotational force is transmitted to the cutter head by a drive mechanism installed at the rear.
Separation cylinder 1 that is separated into a front cylinder and a rear cylinder in the axial direction inside the rear of the cylindrical frame forming the outer shell of the excavator or between the rear end side of the excavator and the front end side of the buried pipe row A sealed space 7 is formed by partitioning the interior of the interior by a front partition wall (not shown) and a rear partition wall 2 at a predetermined interval in the axial direction. The front partition wall and the rear partition wall 2 are provided with a passable opening in the central portion, and by providing a watertight door 8 that closes the opening so as to be openable and closable, the sealed space 7 formed by the front and rear partition walls is reliably watertightly isolated. It is possible to set the selected state and the state in which the user can freely go back and forth as necessary. On the buried tube row side of the rear partition wall 2, water intake devices 3 are installed at two locations on the upper and right sides. In addition, an air-extracting gate valve 10 connected to a piping material extending from the sealed space 7 through the rear partition wall 3 to the buried pipe row side is installed at a position that does not hinder the upper water intake device 3. ing. Furthermore, a drainage gate valve 9 connected to a pipe material extending from the sealed space 7 through the rear partition wall 3 to the buried pipe row side is installed in the lower part.

本実施例では、水取込装置3の設置数を2ケ所と開示したが、埋設管径や密閉空間7の容積に応じて設置数を増減することで、効率の良い水Wの取り込みが行なわれる。   In the present embodiment, the number of installed water intake devices 3 is disclosed as two places, but efficient intake of water W is performed by increasing or decreasing the number of installed according to the diameter of the buried pipe or the volume of the sealed space 7. It is.

エアー抜用仕切弁10は、前後の隔壁によって形成された密閉空間に水Wを充満させる際に、密閉空間内の空気が支障とならないように、埋設管列側に抜き出せるように後隔壁2の頂部に貫設した配管材に連結して設置されている。   The air vent gate valve 10 has a rear partition wall 2 so that the air in the sealed space can be extracted to the buried pipe row side when the sealed space formed by the front and rear partition walls is filled with water W. It is installed in connection with the piping material that penetrates the top.

排水用仕切弁9は、前後の隔壁の止水性に異常が発生した場合に、隔壁部の止水性の補修を行うために、密閉空間7内に入った水Wを埋設管列側に抜き出すためのものであり、通常用いられているゲートバルブやボールバルブ等が、後隔壁2の下部に貫設した配管材に連結して設置されている。 The drainage gate valve 9 draws out the water W contained in the sealed space 7 to the buried pipe row side in order to repair the water stoppage of the partition wall when an abnormality occurs in the water stoppage of the front and rear partition walls. In general, a gate valve, a ball valve, and the like that are used are connected to a piping material that penetrates the lower part of the rear partition wall 2.

図2は、本発明の水取込装置を詳細に説明する正面図である。本実施例では、分離筒1を用いた場合について説明する。分離筒1の後筒部に内接するように固設された後隔壁2の埋設管列側に水取込装置3が設置されている。水取込装置3は、埋設管列の前端側に設置された仕切弁4と、仕切弁4の一端は後隔壁2を貫通して延長し、密閉空間7内の分離筒を貫通して固設した取込用配管材5と、他端は後隔壁2を貫通して固設した吐出用配管材6と、により構成されている。   FIG. 2 is a front view illustrating the water intake device of the present invention in detail. In this embodiment, a case where the separation cylinder 1 is used will be described. A water intake device 3 is installed on the buried tube row side of the rear partition wall 2 fixed so as to be inscribed in the rear tube portion of the separation tube 1. The water intake device 3 includes a gate valve 4 installed on the front end side of the buried pipe row, and one end of the gate valve 4 extending through the rear partition wall 2 and passing through the separation tube in the sealed space 7 to be fixed. The intake piping material 5 provided and the other end of the piping material 5 are fixed by penetrating the rear partition wall 2.

図3は、本発明の水取込装置を詳細に説明する断面図である。本実施例も分離筒1を用いた場合について説明する。仕切弁4から出た取込用配管材5は、後隔壁2を貫通して密閉空間7に延長され、曲管を用いて外側に延長して分離筒1の後筒部を貫通して固設されている。また、仕切弁4から出た吐出用配管材6は、後隔壁2を貫通して固設されている。   FIG. 3 is a cross-sectional view illustrating the water intake device of the present invention in detail. In this embodiment, the case where the separation cylinder 1 is used will be described. The intake piping material 5 coming out of the gate valve 4 extends through the rear partition wall 2 to the sealed space 7, extends outward using a curved pipe, passes through the rear cylinder portion of the separation cylinder 1, and is fixed. It is installed. Further, the discharge piping material 6 coming out of the gate valve 4 is fixedly provided through the rear partition wall 2.

推進施工時は、密閉空間7の自由な行き来が必要となるため、各隔壁の止水扉は開口され、仕切弁は閉鎖された状態となっている。   At the time of propulsion construction, since the free passage of the sealed space 7 is necessary, the water stop door of each partition wall is opened and the gate valve is closed.

次に、本発明による水取込装置3を用いた掘進機の水中回収方法について説明する。予め川底や海底に構築された到達立坑や取水桝内の所定の位置に掘進機が到達すると、掘進機の後方の前隔壁と後隔壁2で形成された密閉空間7を通る配管材や配線類を撤去した後、前後の隔壁の水密扉8を閉めて密閉空間7を閉鎖する。水密扉8の閉鎖が終了すると、埋設管列の前端側に設置された仕切弁4が開口され、川水や海水である水Wが取込用配管材5から取込まれ、吐出用配管材6を経て密閉空間7へと注水される。この時、後隔壁2の頂部に設置したエア-抜用仕切弁10は開口されており、密閉空間7内の空気を埋設管列側に抜き出す。   Next, an underwater recovery method for an excavator using the water intake device 3 according to the present invention will be described. When the excavator arrives at a predetermined position in a vertical shaft or intake well constructed in advance on the riverbed or seabed, piping materials and wirings that pass through the sealed space 7 formed by the front bulkhead and the rear bulkhead 2 behind the excavator Then, the watertight doors 8 on the front and rear partitions are closed to close the sealed space 7. When the closing of the watertight door 8 is completed, the gate valve 4 installed on the front end side of the buried pipe row is opened, and the water W, which is river water or seawater, is taken in from the intake pipe material 5, and the discharge pipe material Water is poured into the sealed space 7 through 6. At this time, the air-extracting gate valve 10 installed at the top of the rear partition wall 2 is opened, and the air in the sealed space 7 is extracted to the buried pipe row side.

密閉空間7に水Wが満水になると、エア-抜用仕切弁10を閉め、水取込装置3の仕切弁4も閉めて注水を完了する。その後、分離筒方式であれば、分離筒1内に設置したジャッキを伸長させて軸方向に前筒と後筒を離脱させて掘進機と埋設管列を分離させる。掘進機の後端側は前筒部の前隔壁によって仕切られた状態となっており、埋設管列の前端側は後筒部の後隔壁2によって仕切られた状態となって密閉されている。完全に掘進機と埋設管列の切り離しが完了すると、掘進機が水中より安全に回収される。掘進機の外殻を成す筒状のフレーム後方に密閉空間7を設置する方式では、水中より潜水夫によってフレ−ムを周方向に切断することによって、掘進機と埋設管列の切り離しが行われる。   When the closed space 7 is filled with water W, the air-extracting gate valve 10 is closed, and the gate valve 4 of the water intake device 3 is also closed to complete the water injection. Thereafter, in the case of the separation cylinder method, the jack installed in the separation cylinder 1 is extended, the front cylinder and the rear cylinder are separated in the axial direction, and the excavator and the buried pipe row are separated. The rear end side of the digging machine is in a state of being partitioned by a front partition wall of the front tube portion, and the front end side of the buried pipe row is in a state of being partitioned by the rear partition wall 2 of the rear tube portion and sealed. When the excavator is completely separated from the buried pipe row, the excavator is safely recovered from the water. In the method of installing the sealed space 7 behind the cylindrical frame that forms the outer shell of the excavator, the excavator and the buried pipe row are separated by cutting the frame in the circumferential direction by a diver from underwater. .

密閉空間7内への水取込中に隔壁の止水性等に問題が発生した場合は、仕切弁4を閉めて注水作業を一時中断し、後隔壁2の下部に設けた排水用仕切弁9より密閉空間内に入った水Wを埋設管列内を通して排水する。そして、前後の隔壁の水密扉8を開けて解放して漏水個所等の修理、補修を実施する。   If there is a problem with the water stoppage of the partition wall during water intake into the sealed space 7, the gate valve 4 is closed to temporarily stop the water injection operation, and the drain gate valve 9 provided at the lower part of the rear partition wall 2. Water W that has entered the sealed space is drained through the buried pipe row. Then, the watertight doors 8 of the front and rear partition walls are opened and opened to repair and repair the leaking points.

川底や海底を推進して水中の到達立坑等から掘進機を安全で、効率良く回収できる水底推進工法に適用できる。   It can be applied to the water bottom propulsion method that can recover the excavator safely and efficiently from underwater vertical shafts by propelling the riverbed and seabed.

本発明の水取込装置を装備した後隔壁を説明する正面図である。It is a front view explaining the back partition equipped with the water intake device of this invention. 本発明の水取込装置を詳細に説明する正面図である。It is a front view explaining the water intake device of this invention in detail. 本発明の水取込装置を詳細に説明する断面図である。It is sectional drawing explaining the water intake apparatus of this invention in detail.

1 分離筒
2 後隔壁
3 水取込装置
4 仕切弁
5 取込用配管材
6 吐出用配管材
7 密閉空間
8 水密扉
9 排水用仕切弁
10 エア-抜用仕切弁
W 水
DESCRIPTION OF SYMBOLS 1 Separation cylinder 2 Rear partition wall 3 Water intake device 4 Gate valve 5 Piping material for intake 6 Piping material for discharge 7 Sealed space
8 Watertight door 9 Drainage gate valve 10 Air-release gate valve W Water

Claims (1)

掘進機の外殻を成す筒状のフレ−ム後方の内部または掘進機の後端側と埋設管列の前端側との間に軸方向に前筒と後筒とに分離される分離筒の内部を、軸方向に所定の間隔を隔てて前隔壁と後隔壁とで仕切った密閉空間を形成し、これらの前隔壁と後隔壁との間の前記フレ−ムまたは前記分離筒を周方向に切断または分離し、その切断・分離ケ所よりも前方の掘進機を、前隔壁によって仕切った状態で水中から回収するときの水取込装置であって、
埋設管列の前端側に仕切弁を設置し、前記仕切弁の一端は前記後隔壁を貫通して延長し前記フレ−ムまたは分離筒に貫設した取込用配管材と、前記仕切弁の他端は前記後隔壁に貫設した吐出用配管材とにより構成されることを特徴とする水取込装置。
A separation cylinder that is separated into a front cylinder and a rear cylinder in the axial direction between the inside of the cylindrical frame that forms the outer shell of the excavator or between the rear end side of the excavator and the front end side of the buried pipe row. A sealed space is formed in which the inside is partitioned by a front partition and a rear partition at a predetermined interval in the axial direction, and the frame or the separation cylinder between the front partition and the rear partition is arranged in the circumferential direction. A water intake device for cutting or separating and recovering the excavator ahead of the cutting / separating point from the water in a state of being partitioned by a front bulkhead,
A gate valve is installed on the front end side of the buried pipe line, and one end of the gate valve extends through the rear partition wall and extends through the frame or the separation cylinder, The other end is constituted by a discharge piping material penetrating through the rear partition wall.
JP2009145289A 2009-06-18 2009-06-18 Water take-in apparatus Pending JP2011001740A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
JP2009145289A JP2011001740A (en) 2009-06-18 2009-06-18 Water take-in apparatus

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013002184A (en) * 2011-06-17 2013-01-07 Shimizu Corp Block chamber mechanism used in guiding machine
CN109001400A (en) * 2018-08-22 2018-12-14 浙江云广检测技术服务有限公司 A kind of water quality detection water fetching device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013002184A (en) * 2011-06-17 2013-01-07 Shimizu Corp Block chamber mechanism used in guiding machine
CN109001400A (en) * 2018-08-22 2018-12-14 浙江云广检测技术服务有限公司 A kind of water quality detection water fetching device
CN109001400B (en) * 2018-08-22 2023-06-30 浙江云广检测技术服务有限公司 Water quality testing water intaking device

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