JPH0621944Y2 - Rubberized cloth temporary cut-off weir - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is intended to temporarily maintain a certain area in running water for construction of water systems such as rivers and waterways and inspection, repair, and replacement of facilities. The present invention provides a temporary shutoff weir made of rubberized cloth for the purpose of shutting off.

(Prior Art) Conventionally, in a water system such as a river or a waterway, when a water gate, a gutter pipe, a gutter, or the like is inspected, repaired, or replaced, it is necessary to make a temporary cutoff upstream of a target place. When making a temporary deadline,
Generally, steel sheet piles are used to make a temporary cutoff, but if concrete structures are present at the place where the steel sheet will be placed, it will not be possible to place them. In such a case, the following measures are taken. One of them is to drop a wooden door (corner drop) or a steel spare gate over a pair of grooves provided facing the side wall of a water channel or the like, and perform a temporary cutoff by these. The next method is to cross waterways,
The framework of a pair of construction is laid, the plate is stretched on each of the pair of steel frameworks, and the clay is packed between the pair of frameworks. Another method is to stack sandbags filled with sand in a small cloth bag so as to cross a waterway or the like.

(Problems to be Solved by the Invention) Since the conventional temporary deadline has the above-mentioned configuration, the advantage of being able to use the corner cutoff or the spare gate as described above is that it can be used many times. However, the production cost is very high, and there is a problem that it cannot be used unless a groove for inserting a corner drop etc. is previously formed on the side surface of the waterway etc. The thing to build is time-consuming and costly to build, and the removal is complicated, and the thing to pile up sandbags like the third one is that the production cost of sandbags itself is cheap, but it is installed and removed. There is a problem that it requires a great deal of work and that water leakage is remarkable.

The present invention provides a temporary shutoff weir that can be installed without a groove on the side wall of a waterway or the like, can be quickly and easily installed or removed, and can be manufactured at a relatively low cost.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention has a plurality of bed girders disposed on the bottom of a water such as a river, and a rubber which can be freely poured and drained on the bed girder. It is possible to adhere a bag made of a cloth to the flow path of the river or the like, and to cover the upstream end of the bed girder with the lower side of the upstream side of the bag to make the lower part of the bag and the water bottom watertight. It is characterized in that a flexible water stop plate is attached.

(Operation) The temporary shut-off weir of the present invention has the above-mentioned configuration, and water is put into the bag body on the bed girder to expand the weir, thereby forming the weir upright. Since the bag body is provided on the bed and the water is stopped at the upstream side of the bag body, the water below and downstream of the bag body flows down, so that the bag body does not have buoyancy. Further, the bag body including the bed girder is pressed against the water bottom surface by the adhesion to the bed girder and the water pressure on the upstream side, thereby preventing the occurrence of falling and sliding.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. First,
For laying on the riverbed 1 in a direction crossing a river or the like, the girders 3 having a length longer than the width of the rubber sheet 2 are fixedly installed on the thick rubber sheet 2 at intervals. The bed girder 3 uses a steel tube, and by matching the downstream end surface of the rubber sheet 2 with one end surface of the bed girder 3, the other end (the side located upstream) of the tubular bed girder 3 is aligned. A gap is formed between the lower surface and the surface of the riverbed 1. On the upstream side of the plurality of bed girders 3, the metal fitting 4 having a smooth curved surface is attached without contacting the river bed, that is, at intervals.

A bag body 6 made of rubberized cloth is adhered over a plurality of bed girders 3, a plurality of belts 5 are surrounded by the bag body 6, a hollow portion of the bed girder 3 is inserted, and an addressing hardware 4 is held. Then wrap and fix. The bag body 6 is an elongated bag body having a sufficient length to cross a river or the like and is watertight.

The belt 5 is fixed by adhesion or the like at a portion in contact with the bag body 6. The portion of the belt 5 or the bag 6 located near the river bed on the upstream side is a belt-shaped water stop plate reinforcement member 7 made of a tough rubber-coated cloth.
Is fixed, and the flexible water stop plate 8 is fixed so as to cover it, and the lower edges of both (7, 8) are in contact with the riverbed 1 when the weir is installed. In this embodiment, the water blocking plate reinforcing material 7 is fastened as shown in FIG. 3 when the belt 5 is wound.

A drain hose 9 for injecting water into the bag body 6 is connected to the upper portion of the bag body 6. A water supply pump (not shown) is connected to the water injection hose 9. A short and small exhaust pipe 10 is connected in the vicinity of the water injection hose 9 of the bag body 6. A cap 11 is capped on the open end of the exhaust pipe 10, and a small-diameter vent hole 11a is formed in the cap 11. A drain hose 12 having an opening / closing valve at an appropriate position is connected to the lower portion of the bag body 6.

Since the temporary shutoff weir of the present invention has the above structure,
It is installed across a river bed 1 and its side wall 1a in a direction such that the bed girder 3 faces downward in a river or the like. Then, the weight 13 is placed and fixed on the portion of the temporary shutoff weir located on the bank of the river or the like.

Next, when the water supply pump is driven to inject water from the water injection hose 9 into the bag body 6, the air in the bag body 6 is expelled from the vent hole 11a by the injected water and the bag body 6 is inflated with water to stand up. . When water is overfilled, it is discharged from the vent hole 11a and the internal water pressure is automatically adjusted. The bag body 6 including the bed beam 3 is tilted with respect to the upstream side gap of the rubber sheet 2 due to the weight of the bag body 6 and the water pressure, which makes it more difficult for the weir to fall and slide.

The drive of the water supply pump is stopped with the bag body 6 standing upright. If the cap 11 is removed with the bag body 6 standing upright, the bag body 6 stands up and the downstream side is gradually drained to lower the water level, but due to the difference in water level between the upper side and the downstream side, the bag body 6 is on the downstream side. The weir top is gradually lowered due to being pushed by the
The excess water inside is drained.

Therefore, the weir top is not adjusted unreasonably high,
In addition, there is no risk of accidents because there is no fall or slip during flooding and the overflow from the top of the weir always begins before that. On the other hand, the exhaust pipe 10 is made of a material that can maintain an upright state without bending, and its height is higher than the weir height.
It has a length that protrudes by about 20%, and the weir height does not become too low due to excessive water discharge, and the weir height is always maintained appropriately.

As the bag body 6 expands, the water blocking plate reinforcing member 7 is pressed against the river bed 1 and bends, and the water blocking plate 8 located on the water blocking plate reinforcing member 7 covers it to prevent water leakage. Further, although the tip edge of the water blocking plate reinforcing member 7 located on the side wall of a river or the like cannot be in close contact with the side wall surface, the base of the water blocking plate 8 is integrally bonded to the water blocking plate reinforcing member 7, The water stop plate 8 prevents the side wall from leaking without being affected by the deformation of the water stop plate reinforcement 7. Upstream water will be discharged downstream from the construction area by appropriate bypass or the like.

After finishing work in the construction area, drain hose
Drain by opening the 12 tip valve and let the bag collapse naturally.

(Effect) As described above, in the weir according to the present invention, it suffices to dispose the bed girder on the bottom of the water, adhere the bag to the girder, and stop the water on the upstream side.
Easy to assemble, inexpensive, easy to stand up the bag and stop running water. Therefore, if this device is used for construction of rivers, etc., installation and removal are quick,
At the same time, it can be reused and the construction cost can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a vertical sectional view of a temporary shutoff weir of the present invention. FIG. 2 is a front view of the temporary shutoff weir of the present invention seen from the upstream side, with a part cut away, and FIG. 3 is an enlarged sectional view of the upstream side lower edge of the bag body. 1 ... River, 2 ... Rubber sheet, 3 ... Layers, 4 ... Attachment, 5 ... Belt, 6 ... Bag, 7 ... Water plate reinforcement, 8 ... Water plate, 9 ... Water injection hose 9,10 ... Exhaust pipe.

Claims (1)

[Scope of utility model registration request] 1. A plurality of bed girders (3) are arranged on the bottom of a river such as a river, and a rubber-lined cloth bag body into which water can be poured and drained is provided on the bed girder in the flow path of the river. Adhesion was made across, and a flexible water stop plate (8) was attached to the lower side of the upstream side of the bag body to cover the upstream end of the bed girder to make the lower part of the bag body and the water bottom surface watertight. A temporary shut-off weir made of rubberized cloth.