JPS5998917A - Remover for soil and sand on falling dam - Google Patents

Abstract

PURPOSE:To remove soil and sand deposited on the upstream side of a falling dam by a method in which a trench directed in parallel with the falling dam is formed adjacently to the upstream side of the falling dam, and a flexible and expandible bag is set in the trench. CONSTITUTION:When a rubber bag 7 is deflated by discharging air through an air supply and discharge pipe 9, soil and sand 10 deposited in the neighborhood of the bag 7 slide down into a trench 4. When the rubber bag 1 is raised by expansion, soil and sand 10 deposited on the dam 1 are also partly dropped into the trench 4, and thereby the soil and sand 10 to interrupt the rising of the dam 1 are discharged and the dam 1 is completely raised. The need for an operation to remove soil and sand is thus eliminated, the maintenance cost of the rubber dam is saved, and damage of the rubber dam in the soil and sand removal operation is prevented.

Description

【発明の詳細な説明】 本発明Ｏま、河川を横断てる方向に設けらｎたいわゆる
ゴム堰と称せらｊろ起伏自在の可撓性膜堰＼−Ｅたは鋼
製転倒ゲート環等の起袂堰σン上流側に堆積した土砂を
排除てる装置に関てろものである。DETAILED DESCRIPTION OF THE INVENTION The present invention includes a so-called rubber weir, a flexible membrane weir that can be raised and lowered freely, or a steel overturning gate ring, etc., which is installed in the direction of crossing a river. This relates to a device that removes sediment that has accumulated on the upstream side of the Kishuan Weir.

水や空気等の流体の送入、排出により膨張、収縮でる通
常ゴム環と称せらｊ、ろ可撓性膜堰や、下端の枢支部を
中心に河川の流れ方向に沿って揺動しうる鋼製転倒ゲー
ト環等の起伏堰を設けた河川では、低流量詩に同起伏堰
を起立ぎせておき、高流量時に同起伏堰を倒伏させた場
合に、河川横断■積が同起伏堰の付近でも左程変化せず
、流水を円１ｉ１’ｖｃ流し、洪水ご防止ぎせる機能が
ある。It is usually called a rubber ring that expands and contracts when fluids such as water or air are introduced and discharged, and can swing along the flow direction of the river around a flexible membrane weir or a pivot point at the lower end. In rivers equipped with undulating weirs such as steel overturning gate rings, if the undulating weir is erected at low flow rates and then collapsed during high flow rates, the cross-sectional area of the river will be There is a function to prevent flooding by letting running water flow around the area without changing much.

しかしながら、起伏堰駈倒伏ぎせている間に、その上に
土砂が堆積てろと、堰起立時に土砂の一部が堰の上に残
留してしまい、ゴム堰の場合ＶＣは、第１図に図示され
るように、その残留土砂ａの重量や土砂の移動変形抵抗
により充分に膨張起立させることかできず、鋼製転倒ゲ
ート環の場合には、第２図に図示されろように、堰本体
すと河床コンクリート段部Ｃの間に土砂ｄが挾′＃Ｅ２
″Ｌで、堰本体すの起立が阻害ぎｎ１所要の堰高が得ら
ｎ、ないことがある。However, if the earth and sand accumulates on top of the undulating weir while it is lying down, some of the earth and sand will remain on the weir when the weir is raised. As shown in Fig. 2, the weir body cannot be sufficiently expanded and erected due to the weight of the residual soil a and the resistance to movement and deformation of the soil, and in the case of a steel overturning gate ring, as shown in Fig. 2, the weir body Earth and sand d is trapped between the riverbed concrete step C'#E2
``L'' may obstruct the erection of the weir body and the required weir height may not be obtained.

特に、河口近くの河川勾配の緩やかな場所に堰を設置し
た場合に、土砂が堆積し易く、前記した不都合が顕著と
なる。In particular, when a weir is installed near the mouth of a river where the slope of the river is gentle, earth and sand are likely to accumulate, and the above-mentioned disadvantages become noticeable.

また、前記した堆積土砂を重機：ｆたけ人力により排除
したが、維持費が著しくかかり、しかも堰本体を破損て
ろことがあった。In addition, although the above-mentioned accumulated soil was removed using heavy machinery and manual labor, maintenance costs were considerable and the weir body was sometimes damaged.

本発明はこのような難点を克服した起伏堰の土砂排除装
置の発明に係り、河゛用を横断てる方向に設けられた起
伏可能な起伏堰において、同起伏堰の竿部側に隣接して
同起伏堰と平行な方間へ指向てろ溝を形成し、同溝内に
膨張収縮可能な可撓性袋を配設したことを特徴とｆろも
ので、その目的とする処は、起伏堰の上流Ｉｋｌ！ｌＶ
Ｃ堆積した土砂を排除して開場を確実に起立させること
ができる構造の簡単な装置を供てる点にある。The present invention relates to the invention of an earth and sand removal device for an undulating weir that overcomes these difficulties, and in an undulating weir that is installed in the direction of crossing a river and is capable of raising and lowering, the earth and sand removal device is provided adjacent to the rod side of the undulating weir. It is characterized by forming a gutter groove oriented parallel to the undulating weir and disposing a flexible bag that can be expanded and contracted in the groove. Upstream Ikl! lV
C. The purpose is to provide a device with a simple structure that can remove accumulated earth and sand and reliably raise the opening.

本発明では、河川ご横断てる方間に設けらｎた起伏可能
な起伏堰において、同起伏堰の上流側に隣接して同起伏
堰と平行な方間へ指向てる溝を形成し、同溝内に腿脹収
縮口■能女町婦性袋を配設したため、前記起伏堰と倒伏
時において、前記可撓性袋を膨張ぎせておき、前記起伏
堰ご起立きせるに当り、前記可撓性袋を収縮すれば、同
起伏堰の上流側に堆積された土砂は前記溝内に落下でる
。In the present invention, in a undulating weir installed in the direction of crossing a river, a groove is formed adjacent to the upstream side of the undulating weir and oriented in a direction parallel to the undulating weir. Since the thigh bulge contraction opening ■Nomemachi women's bag is provided inside, the flexible bag is inflated when the undulating weir is raised, and when the undulating weir is raised, the flexible bag is inflated. When the bag is deflated, the earth and sand accumulated on the upstream side of the undulating weir will fall into the groove.

次に前記起伏堰を起立ぎせｊ、ば、前記起伏堰上に堆積
された土砂の一部も滑り落ちて前記溝内に入るので、堆
積土砂の重量や変形抵抗による前記起伏堰の起立阻害原
因が解消２　ｎ　、その結果、前記起伏堰′？ｒ：谷易
にかつ確実に起立ぎせろことかできる０ 以下第３図ないし第５図に図示ぎｎた本発明の一実施例
について説明でる。Next, when the undulating weir is erected, a portion of the earth and sand deposited on the undulating weir also slides down and enters the groove, so that the weight of the accumulated earth and sand and deformation resistance cause the erecting of the undulating weir to be inhibited. is resolved 2 n , resulting in the said undulating weir′? r: 0 to be able to stand up easily and reliably.An embodiment of the present invention shown in FIGS. 3 to 5 will be described below.

可撓性膜堰（以下単にゴム環と称てる）１は、帯状ゴム
シートを主要榴或ＷＳ材とし、その折り重ね６側縁を上
流側に位置ぎせたまま、押え金５およびアンカボルト６
により、河床コンクリート２の頂面３に確固と気水密に
固着ぎｎ１気水密な可撓性袋体に構成ぎわ、ている。A flexible membrane weir (hereinafter simply referred to as a rubber ring) 1 has a belt-shaped rubber sheet as its main material, and a presser foot 5 and an anchor bolt 6 are attached to the folded rubber sheet with the side edges of the folded sheet 6 positioned on the upstream side.
As a result, it firmly adheres to the top surface 3 of the riverbed concrete 2 in an air and watertight manner, thereby forming an airtight and watertight flexible bag.

またゴム製１内には図示されない給排管が連通ぎれてお
り、図示キｒ、ないポンプの運転等で水あるいは空気を
給排管（図示ぎｎず）を介してゴム製１内に給排てるこ
とにより、ゴム環１を起伏ぎせることかできるようにな
っている。In addition, a supply/drainage pipe (not shown) is communicated with the inside of the rubber 1, and water or air is supplied into the rubber 1 via the supply/drainage pipe (not shown) by turning a pump shown or by operating a pump (not shown). By removing it, the rubber ring 1 can be raised and lowered.

ざらに前記河床コンクリート頂面３でｃう、ゴム環１よ
りも上流側に位置して同ゴム堰１と平行して比較的大き
な横断面積で断面が略矩形の溝４が形成され＼間溝４内
にゴム製袋体７がアンカボルト８により付設２ｒ＋、て
おり、図示されないポンプσ）運転等で空気を給排パイ
プ９を介して同ゴム製袋体７内に給排てることにより、
同袋体７を力影脹、収縮どせることかできろようになっ
ている。A groove 4 having a relatively large cross-sectional area and a substantially rectangular cross section is formed in parallel with the rubber ring 1 and located on the upstream side of the rubber ring 1, roughly on the top surface 3 of the riverbed concrete. A rubber bag body 7 is attached inside the rubber bag body 7 by an anchor bolt 8, and air is supplied and discharged into the rubber bag body 7 through a supply and discharge pipe 9 by operating a pump (not shown), etc.
The bag body 7 can be expanded and contracted by force.

第３図ないし′ｉ！、５１ｆｉに図示された実施例は前
記したようＩに構成、ぎｎ、ているので、ゴム環１が倒
伏キｒした状％Ｉｌ、においてＣま、ゴム製袋体７を膨
張し、その上面を河床コンクリート頂面３と略一致させ
ろことかできろ。Figure 3 or 'i! , 51fi is configured as described above, so that when the rubber ring 1 is in the collapsed state, the rubber bag body 7 is inflated and its upper surface is It should be possible to make it approximately coincident with the river bed concrete top surface 3.

すると第３図に図示ぎれろように倒伏ゴム製１および膨
張ゴム製袋体７σ〕上万に土砂１０が平坦に堆積てろが
、ゴム環ｌを起立ぎせろに当り、ゴム製袋体７内σ〕空
気を給排バイブ９を介して排出ぎせて同袋体７を第４Ｍ
に図示てろように収縮ぎせｎば、ゴム製袋体７の付近の
堆積土砂１０は溝４内に滑り落ちろ。Then, as shown in FIG. 3, the flattened earth and sand 10 on the upper surface of the collapsed rubber bag 1 and the expanded rubber bag 7σ hit the rubber ring 1 to stand up, and the inside of the rubber bag 7 σ] Air is discharged through the supply/discharge vibrator 9 and the bag body 7 is moved to the fourth M.
If it contracts as shown in the figure, the accumulated earth and sand 10 near the rubber bag body 7 will slide into the groove 4.

第４図ｖＣＩＡ示の状態でゴム環１を膨張起立ぎせｎば
、ゴム製１上に堆積した土砂１０σ〕一部も溝４因に入
るため、ゴム環１の膨張部分上でゴム製１σ〕起立を阻
害″ｆろ土砂１０が排除ご旧１、第５図に図示されろよ
うに、ゴム環１は完全に起立てることができ、所要の堰
高が得られる。If the rubber ring 1 is inflated and stood up in the state shown in Figure 4 vCIA, some of the earth and sand deposited on the rubber ring 1 will fall into the groove, so the rubber ring 1 will be placed on the expanded part of the rubber ring 1. As shown in FIG. 5, the rubber ring 1 can be completely erected and the required dam height can be obtained.

このようにゴム製袋体７を膨張、収縮ぎせろだけで、ゴ
ム環１の上流１川の土砂１０を排除でさるため、ゴム製
１σ〕起立を容易に行なうこと力）でき、また土砂排除
のために重機を用いあるいは人力で土砂の排除を行なう
必要がなくなり、ゴム環１の維持コストを節減できろと
ともに、土砂排除作業に伴なうゴム環ｊ（１）損傷を確
実に防止でることができる。In this way, just by expanding and contracting the rubber bag body 7, the earth and sand 10 from the river upstream of the rubber ring 1 can be removed. Therefore, there is no need to remove earth and sand using heavy machinery or manually, thereby reducing the maintenance cost of the rubber ring 1 and reliably preventing damage to the rubber ring j (1) caused by earth and sand removal work. I can do it.

前記実施例では、ゴム製袋体７の膨張時にゴム製袋体７
σ〕上側部は河床コンクリート頂面３と略同−の高ぎに
位置しているが、こわ、を同頂面３より上方へ膨出ぎせ
ろようにしてもよい。In the above embodiment, when the rubber bag body 7 is inflated, the rubber bag body 7
[sigma]] The upper part is located at approximately the same height as the river bed concrete top surface 3, but the stiffness may be made to bulge out above the top surface 3.

第３図ないし第５ＰＸＪＶＣ図示の実施例では、溝４の
横断形状は矩形であったが、第６１’Ｊに図示すろよう
に、梯形に形成し、あろい６ま半円形等適当な断面形状
に形成してもよく、前記実施例と同様な作用効果を奏て
ることができる。In the embodiment shown in FIGS. 3 to 5 PXJVC, the cross-sectional shape of the groove 4 was rectangular, but as shown in FIG. It may be formed into any shape, and the same effects as in the above embodiment can be achieved.

前記実施例では、いずｎもゴム環に本発明を適用したが
、第２図ＶＣ図示ぎｎるような鋼製転倒ゲート堰にも不
発明は勿論適用口Ｊ能である。In the above embodiments, the present invention was applied to rubber rings, but it is of course applicable to a steel overturning gate weir as shown in FIG.

【図面の簡単な説明】[Brief explanation of drawings]

第１′図は起伏堰σ〕一種πるゴム堰を！ｌ７ｖＬＪた
河川に土砂が堆積してゴム堰を完全に起立ぎせろことか
できない状態を図示した説明図、第２図６ま鋼製転倒ゲ
ート堰を敷設した河川に土砂力）堆積して同転倒ゲート
堰を完全に起立ぎせることができない状態を図示した視
、明図、第３図ないし第５図は不発１−１４　Ｋ係る起
伏堰Ｑ）土砂排除装置の一実施例を１ズ１示した横断側
聞図で、第３図はゴム堰を倒伏させた状態、第４図はそ
の起立直前の状態、第５図は起立後の状態をそれぞｎ示
し、第６図は他の実施例σ）横断四面図である。 ■・・・ゴム１！”−２・・・河床コンクリート、３・
・・河床コンクリート頂面、４・・・溝、５・・・押え
金、６・・・アンカボルト、７・・・ゴム製袋体、８・
・・アンカボルト、９・・・給排バイブ、１０・・・土
砂。 代理人　弁理士　江　原　　望 外１名Figure 1' shows an undulating weir σ] a kind of rubber weir! Figure 2 is an explanatory diagram illustrating the state in which a rubber weir cannot be completely erected due to sediment accumulation in a river where a steel overturning gate weir has been installed. Figures 3 to 5 are views and clear drawings showing the state in which the gate weir cannot be completely erected. Fig. 3 shows the rubber weir in its collapsed state, Fig. 4 shows its state just before it is erected, Fig. 5 shows its state after it is erected, and Fig. 6 shows its state after being erected. Example σ) It is a cross-sectional view. ■...Rubber 1! ”-2...riverbed concrete, 3.
... River bed concrete top surface, 4... Groove, 5... Presser foot, 6... Anchor bolt, 7... Rubber bag body, 8...
... Anchor bolt, 9... Supply/exhaust vibe, 10... Earth and sand. Agent: Patent attorney Nozomi Ehara (1 person)

Claims (1)

【特許請求の範囲】[Claims] 河川を横断てる方向に設けらｎ、た起伏可能な起伏堰に
おいて、同起伏堰の上流側に隣接して同起伏堰と平行な
方向へ指向ｆろ溝を形成し、同溝内に膨張収縮可能な可
撓性袋を配設したことを特徴とてろ起伏堰の土砂排除装
置。In an undulating weir installed in the direction across a river, a directional groove is formed adjacent to the upstream side of the undulating weir in a direction parallel to the undulating weir, and an expansion/contraction channel is formed in the groove. Sediment removal equipment for the undulating weir is characterized by the provision of flexible bags.