JPH10159066A - Discharging method of sediment in dam storage reservoir - Google Patents
Discharging method of sediment in dam storage reservoirInfo
- Publication number
- JPH10159066A JPH10159066A JP33469596A JP33469596A JPH10159066A JP H10159066 A JPH10159066 A JP H10159066A JP 33469596 A JP33469596 A JP 33469596A JP 33469596 A JP33469596 A JP 33469596A JP H10159066 A JPH10159066 A JP H10159066A
- Authority
- JP
- Japan
- Prior art keywords
- sediment
- cylindrical body
- dam reservoir
- dam
- screw conveyor
- 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
- Treatment Of Sludge (AREA)
- Barrages (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はダム貯水池の底に堆
積する土砂の排出方法に関する。The present invention relates to a method for discharging sediment deposited on the bottom of a dam reservoir.
【０００２】[0002]
【従来の技術】ダム貯水池の底に堆積する土砂は、ダム
の貯水量を減少させ、ダムの治水利水機能を低下させる
だけではなく、ダム貯水池上流の河床の上昇や、ダム下
流での河床の低下などを引き起こす恐れがあり、河川に
も悪影響を与える。そこで、ダム貯水池の底に堆積する
土砂を排出するため、従来、ダム貯水池の水位を下げ、
ダム貯水池の底を露出させて作業車により堆積土砂を掘
削したり、あるいは、渇水等で水位が下がった時に露出
するダム貯水池の底を作業車により掘削し、ダム貯水池
外に排出するようにしている。2. Description of the Related Art Sediment deposited on the bottom of a dam reservoir not only reduces the amount of water stored in the dam and reduces the dam's flood control and irrigation functions, but also raises the riverbed upstream of the dam reservoir and lowers the riverbed downstream of the dam. There is a risk of causing a decline and adversely affect rivers. Therefore, in order to discharge sediment deposited at the bottom of the dam reservoir, the water level of the dam reservoir has been lowered,
Excavate the sediment with a work vehicle by exposing the bottom of the dam reservoir, or use a work vehicle to excavate the bottom of the dam reservoir exposed when the water level falls due to drought, etc., and discharge it to the outside of the dam reservoir. I have.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、ダム貯
水池の水位を下げ底を露出させてに堆積土砂を排出する
方法では、ダム貯水池の貯水量や、各時期における水使
用量等との関係からいつでも堆積土砂を排出できるとは
限らず、また、渇水の場合に堆積土砂を排出する方法で
は、満水の状態が続くと堆積土砂を排出できない。本発
明は前記事情に鑑み案出されたものであって、本発明の
目的は、ダム貯水池の貯水量や、水使用量等とは無関係
にいつでも堆積土砂を排出できるダム貯水池の堆積土砂
の排出方法を提供することにある。However, in the method of lowering the water level of the dam reservoir and exposing the bottom to discharge the sediment, the method of reducing the water level of the dam reservoir and the amount of water used at each time are always required. Sediment cannot always be discharged, and the method of discharging sediment in the case of drought cannot discharge sediment if the state of full water continues. The present invention has been devised in view of the above circumstances, and an object of the present invention is to discharge sediment in a dam reservoir that can discharge sediment at any time regardless of the amount of water stored in a dam reservoir, the amount of water used, and the like. It is to provide a method.
【０００４】[0004]
【課題を解決するための手段】前記目的を達成するため
本発明は、ダム貯水池の底に堆積する土砂を排出する方
法であって、ダム貯水池に筒体を、その下端をダム貯水
池の堆積土砂中に打ち込むと共にその上端を水面の上方
に突出させて立設し、前記筒体が堆積土砂中に打ち込ま
れた部分に開閉可能な複数の土砂取り入れ口を設け、前
記ダム貯水池の外側に、下方に延在する土砂搬出路を設
け、前記堆積土砂の下方の前記筒体の下部と前記土砂搬
出路の下部を接続するスクリューコンベアを設け、前記
土砂取り入れ口を開放し、前記土砂取り入れ口から堆積
土砂を筒体の内部に流出させ、この堆積土砂を前記スク
リューコンベアと前記土砂搬出路内に充填させ、次い
で、前記土砂取り入れ口を閉塞し、堆積土砂を前記スク
リューコンベアにより前記筒体の下部から前記土砂搬出
路の下部に移送すると共に、土砂搬出路内の堆積土砂を
バケットにより土砂搬出路の下部から上部へ移送し、ダ
ム貯水池の外側で排出するようにしたことを特徴とす
る。また、本発明は、前記土砂搬出路の下部にはポンプ
が配設され、前記バケットにより積み残された土砂が前
記ポンプにより排出管を介してダム貯水池の外側に排出
されることを特徴とする。また、本発明は、前記筒体の
上部が、上下方向に伸縮可能な伸縮部により構成され、
前記伸縮部の上端に、該伸縮部の上端をダム貯水池の水
面上に浮かせる浮体が設けられ、前記伸縮部の上端はダ
ム貯水池の水位に応じて上下動することを特徴とする。
また、本発明は、前記筒体の下部と前記スクリューコン
ベアとの接続部に開閉弁が設けられていることを特徴と
する。また、本発明は、前記筒体がダム堤体の近傍に立
設されることを特徴とする。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is a method for discharging sediment deposited on the bottom of a dam reservoir. It is erected with its upper end protruding above the water surface and provided with a plurality of sediment intakes that can be opened and closed at the part where the cylinder is driven into the sediment. And a screw conveyor that connects the lower part of the cylindrical body below the sediment and the lower part of the sediment discharge path, opens the sediment intake, and deposits the sediment from the sediment intake. The sediment is allowed to flow into the cylindrical body, and the sediment is filled in the screw conveyor and the sediment discharge path.The sediment intake is then closed, and the sediment is removed by the screw conveyor. While transferring from the lower part of the cylindrical body to the lower part of the sediment discharge path, the sediment in the sediment discharge path is transferred from the lower part of the sediment discharge path to the upper part by a bucket, and is discharged outside the dam reservoir. Features. Further, the present invention is characterized in that a pump is provided at a lower portion of the sediment discharge path, and the sediment unloaded by the bucket is discharged to the outside of the dam reservoir via a discharge pipe by the pump. . In addition, according to the present invention, an upper portion of the cylindrical body is configured by a telescopic portion that can expand and contract in a vertical direction,
A floating body is provided at an upper end of the expansion and contraction portion so that the upper end of the expansion and contraction portion floats on the water surface of the dam reservoir, and the upper end of the expansion and contraction portion moves up and down according to the water level of the dam reservoir.
Further, the present invention is characterized in that an opening / closing valve is provided at a connection portion between the lower portion of the cylindrical body and the screw conveyor. Further, the present invention is characterized in that the cylindrical body is erected near a dam bank.
【０００５】本発明では、土砂取り入れ口を開放して堆
積土砂を筒体内に流し込み、筒体、スクリューコンベ
ア、土砂搬出路に充填させる。そして、土砂取り入れ口
を閉塞し、スクリューコンベアにより堆積土砂を筒体か
ら土砂搬出路へ移送し、バケットにより堆積土砂を土砂
搬出路内の下部から上部へ移送し、ダム貯水池の外側で
排出させる。[0005] In the present invention, the sediment intake is opened, and the sediment is poured into the cylinder, and the cylinder, the screw conveyor, and the sediment discharge path are filled. Then, the sediment intake is closed, the sediment is transferred from the cylindrical body to the sediment discharge path by the screw conveyor, the sediment is transferred from the lower part to the upper part of the sediment discharge path by the bucket, and discharged outside the dam reservoir.
【０００６】[0006]
【発明の実施の形態】次に本発明の実施例について説明
する。図１は本発明方法が実施されるダム貯水池の断面
側面図、図２は同平面図を示す。２はダム貯水池、４は
堤体、６は堤体４に設けられた放流口、８はダム貯水池
２の上流側の周囲箇所に設けられた土砂処理設備を示
し、土砂処理設備８は沈殿池８０２と濁水処理設備８０
４により構成されている。本発明による堆積土砂の排出
方法では、筒体１２と、スクリューコンベア１４と、土
砂搬出路１６と、バケットエレベータ１８等が用いられ
る。Next, an embodiment of the present invention will be described. FIG. 1 is a sectional side view of a dam reservoir in which the method of the present invention is performed, and FIG. 2 is a plan view of the same. Reference numeral 2 denotes a dam reservoir, 4 denotes a dam body, 6 denotes a discharge port provided in the dam body 4, 8 denotes a sediment treatment facility provided in a peripheral portion on the upstream side of the dam reservoir 2, and a sediment treatment facility 8 denotes a sedimentation pond. 802 and turbid water treatment equipment 80
4. In the method for discharging sediment according to the present invention, the cylindrical body 12, the screw conveyor 14, the earth and sand discharge path 16, the bucket elevator 18, and the like are used.
【０００７】前記筒体１２は、堆積土砂（シルト）２０
が最も溜り易い堤体４の近傍で上下に立設され、前記筒
体１２として、例えば、鋼管が用いられ、前記筒体１２
の下部は、ダム貯水池２の底に堆積した堆積土砂２０中
に打ち込まれている。本実施例では、筒体１２の上部
が、上下にスライド可能にかつ水密に結合された複数の
筒状分割体１２０２から上下に伸縮可能に構成されてい
る。そして、最も上端に位置する筒状分割体１２０２Ａ
の上部の外周部に環状の浮体２２が取着され、前記筒状
分割体１２０２の上端がダム貯水池２の水位の変動に対
応して上下動し、前記筒状分割体１２０２の上端が常に
水面上に位置するように構成されている。このように筒
体１２の上部を伸縮可能に構成すると、伸縮可能に構成
しない場合に較べて、水位が下がった場合に、筒体１２
が露出しないので外観上見栄えが良く、有利となる。
尚、筒体１２の上部を上下に伸縮させる構成は種々考え
られ、例えば、蛇腹状のゴムホース等を用いても構成す
ることが可能である。また、前記筒体１２が堆積土砂２
０中に埋設された部分およびその近傍部分には複数の土
砂取り入れ口２４が周方向及び上下方向に間隔をおいて
複数設けられ、各土砂取り入れ口２４は、筒体１２の内
周面或は外周面に配設された蓋板（不図示）により開閉
可能である。[0007] The cylindrical body 12 is made of sediment (silt) 20.
Is installed up and down in the vicinity of the bank body 4 where the water is most likely to accumulate, and a steel pipe, for example, is used as the cylindrical body 12.
Is driven into sediment 20 deposited on the bottom of the dam reservoir 2. In the present embodiment, the upper part of the cylindrical body 12 is configured to be vertically slidable and extendable and contractable from a plurality of tubular divided bodies 1202 that are watertightly coupled. And the cylindrical divided body 1202A located at the uppermost end
An annular floating body 22 is attached to the outer peripheral portion of the upper part of the upper part of the cylinder, and the upper end of the cylindrical divided body 1202 moves up and down in response to the fluctuation of the water level of the dam reservoir 2. It is configured to be located above. When the upper portion of the cylindrical body 12 is configured to be extendable and contractable in this manner, compared with a case where the upper portion of the cylindrical body 12 is not configured to be extendable and contractible, the cylindrical body 12 can be configured to have a lower water level.
Since it is not exposed, the appearance is good and it is advantageous.
It should be noted that various configurations for vertically expanding and contracting the upper portion of the cylindrical body 12 are conceivable. For example, it is possible to use a bellows-shaped rubber hose or the like. Further, the cylindrical body 12 is made of sediment 2
A plurality of sediment intake ports 24 are provided at intervals in the circumferential direction and the vertical direction in a portion buried in the inside of the cylinder and the vicinity thereof. It can be opened and closed by a cover plate (not shown) provided on the outer peripheral surface.
【０００８】前記土砂搬出路１６は前記ダム貯水池２の
上流側の周囲箇所でかつ沈殿池８０２の近傍で下方に鉛
直に掘削された立坑により構成されている。前記スクリ
ューコンベア１４はダム貯水池２の底の下方に埋設さ
れ、水平に延在して前記筒体１２の下部と土砂搬出路１
６の下部を接続している。前記筒体１２の下部とスクリ
ューコンベア１４が接続される部分には開閉可能な開閉
弁２６が設けられている。前記スクリューコンベア１４
は、管体１４０２と、回転軸１４０４と、回転軸１４０
４に取着された螺旋状の羽根１４０６から構成され、不
図示のモータ等の動力源により回転軸１４０４、羽根１
４０６が回転し、堆積土砂２０を筒体１２の下部から土
砂搬出路１６の下部へ移送するように構成されている。The earth and sand discharge passage 16 is constituted by a shaft excavated vertically at a location around the upstream of the dam reservoir 2 and in the vicinity of the sedimentation tank 802. The screw conveyor 14 is buried below the bottom of the dam reservoir 2, extends horizontally, and extends downward from the lower portion of the cylindrical body 12 and the sediment discharge path 1.
6 is connected to the lower part. An opening / closing valve 26 that can be opened and closed is provided at a portion where the lower part of the cylindrical body 12 and the screw conveyor 14 are connected. The screw conveyor 14
Is a tubular body 1402, a rotating shaft 1404, and a rotating shaft 140.
4 includes a spiral blade 1406 attached to the rotary shaft 1404 and a blade 1 by a power source such as a motor (not shown).
406 is configured to rotate and transfer the sediment 20 from the lower part of the cylindrical body 12 to the lower part of the sediment discharge path 16.
【０００９】前記土砂搬出路１６にはバケットエレベー
タ１８が設置されている。前記バケットエレベータ１８
は、土砂搬出路１６内に設置されたフレーム１８０２
と、フレーム１８０２に沿って配設されたチェーン（不
図示）と、チェーンの長手方向に間隔をおいて取着され
たバケット１８０４と、チェーンを駆動するモータ等の
動力源により構成されている。前記フレーム１８０２
は、土砂搬出路１６の下端から土砂搬出路１６の上方に
鉛直に延在する縦部１８０２Ａと、縦部１８０２Ａの上
端から土砂処理設備８側に水平に延在する横部１８０２
Ｂで構成され、前記チェーンの駆動により、各バケット
１８０４がフレームの縦部１８０２Ａの下端から上端
へ、上端から横部１８０２Ｂの上面を通って横部１８０
２Ｂの先端に、横部１８０２Ｂの先端から横部１８０２
Ｂの下面を通って縦部１８０２Ａの上端へ、縦部１８０
２Ａの上端から縦部１８０２Ａの下端へと循環するよう
に構成されている。A bucket elevator 18 is installed in the earth and sand discharge path 16. The bucket elevator 18
Is a frame 1802 installed in the earth and sand discharge path 16.
, A chain (not shown) arranged along the frame 1802, a bucket 1804 attached at an interval in the longitudinal direction of the chain, and a power source such as a motor for driving the chain. The frame 1802
The vertical portion 1802A extends vertically from the lower end of the sediment discharge path 16 to above the sediment discharge path 16, and the horizontal portion 1802 extends horizontally from the upper end of the vertical portion 1802A to the soil processing equipment 8 side.
B, and each bucket 1804 is driven from the lower end to the upper end of the vertical portion 1802A of the frame by passing through the upper surface of the horizontal portion 1802B from the upper end.
2B, from the tip of the horizontal portion 1802B to the tip of the horizontal portion 1802B.
B to the upper end of the vertical portion 1802A through the lower surface of the vertical portion 1802A.
It is configured to circulate from the upper end of 2A to the lower end of vertical portion 1802A.
【００１０】更に、土砂搬出路１６の下端には、土砂排
出用ポンプ３０が配設され、土砂排出用ポンプ３０の駆
動により管体３００２を介して、土砂搬出路１６の下端
の堆積土砂２０が前記沈殿池８０２に排出されるように
構成されている。Further, a sediment discharge pump 30 is provided at the lower end of the sediment discharge path 16, and the sediment 20 at the lower end of the sediment discharge path 16 is driven by the sediment discharge pump 30 via a pipe 3002. It is configured to be discharged to the settling basin 802.
【００１１】次に、上述のような筒体１２と、スクリュ
ーコンベア１４と、土砂搬出路１６と、バケットエレベ
ータ１８等を用いて、ダム貯水池２の底に堆積した土砂
を排出する手順について説明する。まず、堆積土砂２０
中に位置する土砂取り入れ口２４と、開閉弁２６を開放
する。これにより、流動状或は半流動状の堆積土砂２０
が土砂取り入れ口２４から筒体１２内に流れ込み筒体１
２の下部からスクリューコンベア１４へ、スクリューコ
ンベア１４から土砂搬出路１６へと流入し、筒体１２、
スクリューコンベア１４、土砂搬出路１６に充填され
る。そして、筒体１２の上部が大気に開放されているこ
とから、筒体１２内の流動状或は半流動状の堆積土砂２
０の上面と、土砂搬出路１６内の流動状或は半流動状の
堆積土砂２０の上面とが、貯水池２の水面とほぼ同一に
なるまで堆積土砂が充填される。このように堆積土砂が
筒体１２、スクリューコンベア１４、土砂搬出路１６に
充填されたならば、土砂取り入れ口２４を閉塞する。次
に、スクリューコンベア１４とバケットエレベータ１８
を駆動し、スクリューコンベア１４によりスクリューコ
ンベア１４内の堆積土砂２０を土砂搬出路１６の下端へ
移送し、バケットエレベータ１８の多数のバケット１８
０４により土砂搬出路１６内の堆積土砂２０を下方から
上方へ移送し、次いで、土砂搬出路１６の上方の地上に
おいて水平に移送し、沈殿池８０２に排出する。Next, a procedure for discharging the sediment deposited on the bottom of the dam reservoir 2 using the above-described cylindrical body 12, screw conveyor 14, earth and sand discharge path 16, bucket elevator 18, and the like will be described. . First, sediment 20
The earth and sand intake port 24 located inside and the on-off valve 26 are opened. As a result, the fluid or semi-fluid sediment 20
Flows into the cylinder 12 from the sediment intake 24 and the cylinder 1
2 into the screw conveyor 14, from the screw conveyor 14 to the earth and sand discharge path 16, and into the cylindrical body 12,
The screw conveyor 14 and the earth and sand discharge path 16 are filled. And since the upper part of the cylinder 12 is open to the atmosphere, the fluid or semi-fluid sediment 2
0 is filled with the sediment until the upper surface of the fluid or semi-fluid sediment 20 in the sediment discharge path 16 becomes substantially the same as the water surface of the reservoir 2. When the accumulated sediment is filled in the cylindrical body 12, the screw conveyor 14, and the sediment discharge path 16, the sediment intake port 24 is closed. Next, the screw conveyor 14 and the bucket elevator 18
, The sediment 20 in the screw conveyor 14 is transferred to the lower end of the earth and sand discharge path 16 by the screw conveyor 14, and a number of buckets 18 of the bucket elevator 18 are moved.
The sediment 20 in the sediment carrying-out path 16 is transferred from below to the upper part by 04, and then horizontally transferred on the ground above the sediment carrying-out path 16 and discharged to the sedimentation basin 802.
【００１２】このようにして堆積土砂２０を排出し、筒
体１２内の土砂がスクリューコンベア１４へ排出された
ならば、開閉弁２６を閉塞し、スクリューコンベア１４
とバケットエレベータ１８により、スクリューコンベア
１４内と土砂搬出路１６内の堆積土砂を移送し、沈殿池
８０２へ排出させ、スクリューコンベア１４内と土砂搬
出路１６内の堆積土砂が排出されたならば、スクリュー
コンベア１４とバケットエレベータ１８を停止させる。
そして、バケット１８０４により排出されず、土砂搬出
路１６の下部に残留した堆積土砂２０を、土砂排出用ポ
ンプ３０を駆動することで管体３００２を介して沈殿池
８０２に排出し、作業を終了する。このように、筒体１
２、スクリューコンベア１４、土砂搬出路１６内の堆積
土砂を取り除いた後、前記と同様に、土砂取り入れ口２
４と開閉弁２６を開いて土砂取り入れ口２４から堆積土
砂を筒体１２内に流出させ、前記と同様な作業を繰り返
して行なう。なお、土砂処理設備８において、沈殿池８
０２の土砂はダンプトラック等により適宜箇所に運搬さ
れ、また、濁水は濁水処理設備８０４により浄化され、
浄化された水がダム貯水池２の上流箇所に放流される。When the sediment 20 is discharged as described above and the sediment in the cylinder 12 is discharged to the screw conveyor 14, the on-off valve 26 is closed, and the screw conveyor 14 is closed.
And the bucket elevator 18 transfers the sediment deposited in the screw conveyor 14 and the sediment discharge path 16 and discharges the sediment into the sedimentation basin 802. If the sediment deposited in the screw conveyor 14 and the sediment discharge path 16 is discharged, The screw conveyor 14 and the bucket elevator 18 are stopped.
Then, the sediment 20 that has not been discharged by the bucket 1804 and remains in the lower part of the sediment discharge path 16 is discharged to the sedimentation basin 802 via the pipe 3002 by driving the sediment discharge pump 30, and the operation ends. . Thus, the cylinder 1
2. After removing the sediment deposited in the screw conveyor 14 and the sediment discharge path 16, the sediment intake port 2 is removed in the same manner as described above.
4 and the opening / closing valve 26 are opened to allow the sediment deposited to flow out into the cylindrical body 12 from the sediment intake port 24, and the same operation as described above is repeated. In the sediment treatment facility 8, the sedimentation basin 8
02 is transported to an appropriate place by a dump truck or the like, and turbid water is purified by a turbid water treatment facility 804.
The purified water is discharged upstream of the dam reservoir 2.
【００１３】従って、本実施例によれば、筒体１２と、
スクリューコンベア１４と、土砂搬出路１６と、バケッ
トエレベータ１８等を用いてダム貯水池２の底に堆積し
た土砂を排出するので、ダム貯水池２の貯水量や、水使
用量等とは無関係に、いつでも堆積土砂２０を確実に排
出することが可能となる。そして、堆積土砂２０を排出
するための筒体１２と、スクリューコンベア１４と、土
砂搬出路１６と、バケットエレベータ１８等からなる設
備は、ダムの新設時に設置してもよく、或は、既存のダ
ムにも設置することが可能で、新設、既存を問わずに全
てのダムに広く適用可能である。Therefore, according to this embodiment, the cylindrical body 12 and
The screw conveyer 14, the sediment discharge path 16, the bucket elevator 18 and the like are used to discharge the sediment deposited at the bottom of the dam reservoir 2, so that the sediment is always available regardless of the amount of water stored in the dam reservoir 2, the amount of water used, and the like. The sediment 20 can be reliably discharged. The equipment including the cylindrical body 12 for discharging the sediment 20, the screw conveyor 14, the earth and sand discharge path 16, the bucket elevator 18, and the like may be installed when the dam is newly established, or the existing equipment may be installed. It can also be installed on dams, and can be widely applied to all dams, new or existing.
【００１４】[0014]
【発明の効果】以上の説明で明らかなように本発明は、
ダム貯水池の底に堆積する土砂を排出する方法であっ
て、ダム貯水池に筒体を、その下端をダム貯水池の堆積
土砂中に打ち込むと共にその上端を水面の上方に突出さ
せて立設し、前記筒体が堆積土砂中に打ち込まれた部分
に開閉可能な複数の土砂取り入れ口を設け、前記ダム貯
水池の外側に、下方に延在する土砂搬出路を設け、前記
堆積土砂の下方の前記筒体の下部と前記土砂搬出路の下
部を接続するスクリューコンベアを設け、前記土砂取り
入れ口を開放し、前記土砂取り入れ口から堆積土砂を筒
体の内部に流出させ、この堆積土砂を前記スクリューコ
ンベアと前記土砂搬出路内に充填させ、次いで、前記土
砂取り入れ口を閉塞し、堆積土砂を前記スクリューコン
ベアにより前記筒体の下部から前記土砂搬出路の下部に
移送すると共に、土砂搬出路内の堆積土砂をバケットに
より土砂搬出路の下部から上部へ移送し、ダム貯水池の
外側で排出するようにした。そのため、ダム貯水池の貯
水量や、水使用量等とは無関係に、いつでも堆積土砂を
確実に排出することができ、また、筒体と、スクリュー
コンベアと、土砂搬出路と、バケットエレベータ等を用
いて堆積土砂を排出するので、堆積土砂排出のための設
備は、ダムの新設時に設置してもよく、或は、既存のダ
ムにも設置することが可能で、全てのダムに広く適用可
能である。As is clear from the above description, the present invention
A method for discharging sediment deposited on the bottom of a dam reservoir, comprising: mounting a cylindrical body into the dam reservoir, driving a lower end thereof into the sediment of the dam reservoir, and projecting an upper end thereof above the water surface to stand upright. A plurality of sediment inlets that can be opened and closed are provided at a portion where the cylinder is driven into the sediment, and a sediment discharge path extending downward is provided outside the dam reservoir, and the cylinder below the sediment is provided. A screw conveyor is provided for connecting the lower part of the sediment discharge path with the lower part of the sediment discharge path, the sediment intake is opened, and the sediment is discharged from the sediment intake into the cylindrical body. The sediment discharge port is filled, then the sediment intake port is closed, and the sediment is transferred from the lower part of the cylindrical body to the lower part of the sediment discharge path by the screw conveyor. The sediment in the discharge line is transferred from the bottom of the sediment discharge line to the top by a bucket, and to discharge outside the dam reservoir. Therefore, regardless of the amount of water stored in the dam reservoir, the amount of water used, etc., it is possible to reliably discharge sediment at any time, and to use a cylinder, a screw conveyor, a sediment discharge path, a bucket elevator, etc. Since the sediment is discharged, the equipment for discharging the sediment may be installed when the dam is newly established, or it can be installed in the existing dam, and it can be widely applied to all dams. is there.
【図１】本発明方法が実施されるダム貯水池の断面側面
図である。FIG. 1 is a cross-sectional side view of a dam reservoir in which the method of the present invention is performed.
【図２】本発明方法が実施されるダム貯水池の平面図で
ある。FIG. 2 is a plan view of a dam reservoir in which the method of the present invention is performed.
２ ダム貯水池 ４ 堤体 ８ 土砂処理設備 １２ 筒体 １４ スクリューコンベア １６ 土砂排出路 １８ バケットエレベータ ２０ 堆積土砂 ２４ 土砂取り入れ口 ２６ 開閉弁 ３０ 土砂排出用ポンプ 2 Dam reservoir 4 Embankment 8 Sediment treatment equipment 12 Cylindrical body 14 Screw conveyor 16 Sediment discharge path 18 Bucket elevator 20 Sediment sediment 24 Sediment intake 26 Open / close valve 30 Sediment discharge pump
───────────────────────────────────────────────────── フロントページの続き (72)発明者 後藤 道夫 東京都渋谷区千駄ヶ谷四丁目６番15号 株 式会社フジタ内 (72)発明者 渋谷 光男 東京都渋谷区千駄ヶ谷四丁目６番15号 株 式会社フジタ内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Michio Goto, Inventor Fujita Co., Ltd. 4-6-115 Sendagaya, Shibuya-ku, Tokyo (72) Mitsuo Shibuya Inventor 4-6-115 Sendagaya, Shibuya-ku, Tokyo Stock Company Company Fujita
Claims (5)
る方法であって、 ダム貯水池に筒体を、その下端をダム貯水池の堆積土砂
中に打ち込むと共にその上端を水面の上方に突出させて
立設し、 前記筒体が堆積土砂中に打ち込まれた部分に開閉可能な
複数の土砂取り入れ口を設け、 前記ダム貯水池の外側に、下方に延在する土砂搬出路を
設け、 前記堆積土砂の下方の前記筒体の下部と前記土砂搬出路
の下部を接続するスクリューコンベアを設け、 前記土砂取り入れ口を開放し、前記土砂取り入れ口から
堆積土砂を筒体の内部に流出させ、この堆積土砂を前記
スクリューコンベアと前記土砂搬出路内に充填させ、 次いで、前記土砂取り入れ口を閉塞し、堆積土砂を前記
スクリューコンベアにより前記筒体の下部から前記土砂
搬出路の下部に移送すると共に、土砂搬出路内の堆積土
砂をバケットにより土砂搬出路の下部から上部へ移送
し、ダム貯水池の外側で排出するようにした、 ことを特徴とするダム貯水池の堆積土砂の排出方法。1. A method for discharging sediment deposited on the bottom of a dam reservoir, comprising: inserting a cylindrical body into the dam reservoir, and driving a lower end thereof into the sediment of the dam reservoir and projecting an upper end thereof above the water surface. Standing, providing a plurality of sediment intakes that can be opened and closed at a portion where the cylindrical body is driven into the sediment, and a sediment discharge path extending downwardly provided outside the dam reservoir, A screw conveyor connecting the lower part of the lower cylindrical body and the lower part of the sediment discharge path is provided, the sediment intake port is opened, and the sediment is discharged from the sediment intake port into the cylindrical body. The screw conveyor and the sediment discharge path are filled, then the sediment intake port is closed, and the sediment is transferred from the lower part of the cylindrical body to the lower part of the sediment discharge path by the screw conveyor. A method of discharging sediment in a dam reservoir, wherein the sediment in the sediment discharge passage is transported from a lower portion to an upper portion of the sediment discharge passage by a bucket and discharged outside the dam reservoir.
され、前記バケットにより積み残された堆積土砂が前記
ポンプにより排出管を介してダム貯水池の外側に排出さ
れる請求項１記載のダム貯水池の堆積土砂の排出方法。2. The pump according to claim 1, wherein a pump is provided at a lower portion of the sediment discharge path, and the sediment left unloaded by the bucket is discharged to the outside of the dam reservoir via a discharge pipe by the pump. Method of discharging sediment from the dam reservoir.
な伸縮部により構成され、前記伸縮部の上端に、該伸縮
部の上端をダム貯水池の水面上に浮かせる浮体が設けら
れ、前記伸縮部の上端はダム貯水池の水位に応じて上下
動する請求項１記載のダム貯水池の堆積土砂の排出方
法。3. An upper portion of the cylindrical body is constituted by an expandable and contractible portion that can expand and contract in a vertical direction, and a floating body is provided at an upper end of the expandable portion to float the upper end of the expandable portion on the water surface of the dam reservoir. 2. The method according to claim 1, wherein the upper end of the expansion and contraction portion moves up and down according to the water level of the dam reservoir.
アとの接続部に開閉弁が設けられている請求項１記載の
ダム貯水池の堆積土砂の排出方法。4. The method for discharging sediment deposited in a dam reservoir according to claim 1, wherein an on-off valve is provided at a connection between the lower portion of the cylindrical body and the screw conveyor.
請求項１記載のダム貯水池の堆積土砂の排出方法。5. The method for discharging sediment deposited in a dam reservoir according to claim 1, wherein the cylindrical body is erected near a dam embankment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33469596A JP3791992B2 (en) | 1996-11-28 | 1996-11-28 | Discharge method of sediment in the dam reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33469596A JP3791992B2 (en) | 1996-11-28 | 1996-11-28 | Discharge method of sediment in the dam reservoir |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10159066A true JPH10159066A (en) | 1998-06-16 |
| JP3791992B2 JP3791992B2 (en) | 2006-06-28 |
Family
ID=18280194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33469596A Expired - Fee Related JP3791992B2 (en) | 1996-11-28 | 1996-11-28 | Discharge method of sediment in the dam reservoir |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3791992B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100665002B1 (en) | 2006-08-31 | 2007-01-10 | 주식회사 도화종합기술공사 | Deposit sewage remove apparatus of sink-hole |
| KR100805159B1 (en) | 2007-08-13 | 2008-02-21 | (주)우주엔지니어링 | Dam easy to discharge deposit |
| JP2013019112A (en) * | 2011-07-07 | 2013-01-31 | Electric Power Dev Co Ltd | Suction conveyance device for underwater sediment and suction conveyance method for underwater sediment |
| JP2015158089A (en) * | 2014-02-24 | 2015-09-03 | 株式会社大林組 | sediment discharge system and sediment discharge method |
| CN107075823A (en) * | 2014-09-25 | 2017-08-18 | D·巴特尔特 | The artificial method for corroding water storage waters |
| US10112126B2 (en) * | 2016-03-11 | 2018-10-30 | Southern Field Welding, Llc | Extrusion system and method for separating soil from water |
Families Citing this family (1)
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|---|---|---|---|---|
| KR101891070B1 (en) * | 2017-10-12 | 2018-09-28 | 유구이앤씨(주) | An ordinary dredging device and an ordinay dredging method using the same. |
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1996
- 1996-11-28 JP JP33469596A patent/JP3791992B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100665002B1 (en) | 2006-08-31 | 2007-01-10 | 주식회사 도화종합기술공사 | Deposit sewage remove apparatus of sink-hole |
| KR100805159B1 (en) | 2007-08-13 | 2008-02-21 | (주)우주엔지니어링 | Dam easy to discharge deposit |
| JP2013019112A (en) * | 2011-07-07 | 2013-01-31 | Electric Power Dev Co Ltd | Suction conveyance device for underwater sediment and suction conveyance method for underwater sediment |
| JP2015158089A (en) * | 2014-02-24 | 2015-09-03 | 株式会社大林組 | sediment discharge system and sediment discharge method |
| CN107075823A (en) * | 2014-09-25 | 2017-08-18 | D·巴特尔特 | The artificial method for corroding water storage waters |
| US10112126B2 (en) * | 2016-03-11 | 2018-10-30 | Southern Field Welding, Llc | Extrusion system and method for separating soil from water |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3791992B2 (en) | 2006-06-28 |
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