JPS5846606B2 - Flexible membrane undulating weir - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an undulating weir made of a flexible membrane, and more particularly to an improvement of an undulating weir made of a flexible membrane that protects the covering attachment part (covering clamp part).

An undulating weir made of a flexible membrane is a weir in which a flexible membrane envelope (bag-like body) made of rubber-coated cloth, for example, which forms the weir body, is attached to at least the river bed in the direction across the river, and the interior of the envelope is communicated with. It is designed to expand and stand up by introducing fluid such as air or water through an exhaust (water) pipe, or to contract and fall down by discharging fluid from inside the envelope (for example, Japanese Patent Publication No. 11702-1970, Japanese Patent Publication No. 11702-1972).
(See No. 2371).

In this type of undulating weir, in order to prevent the envelope from being damaged by boulders, etc. that flow down with the flowing water when the weir collapses (the boulders move on the envelope and damage the envelope), cushioning material is placed on the inner bottom of the envelope and It may be placed on the inner surface of the envelope.

FIG. 1 shows an example of a flexible membrane undulating weir equipped with this buffer material.

In the figure, 1 is a flexible membrane envelope, such as a rubberized cloth envelope, 2 is a riverbed, 3 and 3' are cushioning materials, such as foamed polyethylene material, 4,
Reference numeral 4' indicates a bag for storing a cushioning material, such as a rubber-coated cloth bag, 5 indicates an inlet/exhaust (water) pipe, 6 indicates upstream water, 7 indicates a covering clamp portion, and 8 indicates a sealing sheet.

An undulating weir with such a cushioning material can prevent damage to the weir envelope due to epidemics, etc., but it cannot prevent damage to the weir envelope clamp portion.

In view of the above, the inventors of the present invention have previously proposed a flexible membrane undulating weir with a protective means installed at the clamp part of the sheath, that is, the following: For installation, a patent application was filed for a undulating weir made of a flexible membrane with protected parts.

The above will be explained using FIGS. 2 and 3. FIG. 2 is an enlarged view of the flexible membrane undulating weir near the envelope membrane clamp section taken along the river flow direction (the upstream clamp section).

In Figure 2, 2 is a riverbed, 3 is a cushioning material such as foamed polyethylene, 4 is a bag for storing the cushioning material, such as rubberized cloth, 7 is a covering clamp part, and 8 is a sealing sheet. This is the same as described above.

The above-mentioned covering clamp part is similar to the means already well known from, for example, Japanese Patent Publication No. 44-2371, and 11 is a main body carpet or covering film, 12 is a cover sheet, 13 is a clamping bar, 14 is a rond, and 15 is a tube, 1
6 is bar, 17 is bolt, 18 is three 7°, 19 is anchor, 20 is nut, 21 is base plate, 22.2
3 is a dry screw, and 38 is an epoxy resin.

In particular, in the above, in order to protect the enveloping clamp part 7 from boulders, etc., the cushioning material 25, for example, a foamed polyethylene material, is provided with an enveloping material recess that is recessed from the river bed reference plane 36 where the clamp part 7 is present. It is placed at location 26.

That is, as is clear from FIG. 2, the base plate 21 is shaped so as to match the shape of the recess 26 in which the cushioning material 25 is wrapped with a fixing cloth-like material such as a rubberized cloth 27 so as to cover the covering clamp part 7. Bolt 29, nut 30 and bolt 1 planted in
7 bolts 17.2 seat plates 31. Natsuto 32
It is attached with.

At this time, a protective cloth-like material such as a rubberized cloth 28 is applied to the upper surface with both ends bent, for example, by adhesive.

Note that the buffer material 3, the buffer material 25, and the reference plane 36 of the riverbed 2 are formed so as to be substantially on the same plane.

Note that 24 is a filler, such as cuttings of a cushioning material, 33 is a belt for fastening the cushioning material, 34 is a bolt, and 35 is a nut.

The cushioning material 25 is wrapped with the cushioning material fixing cloth body 27 as shown in FIG. 3, for example.

Figure a is a plan view, Figure C is a view taken along arrow A-A in Figure a, Figure C is Figure a.
Figure d is a view taken along line C--C in figure a.

In the figure, the same reference numerals as in FIG. 2 indicate the same parts.

As is clear from these figures, the tip of the cushioning material fixing cloth 27 that wraps around the cushioning material 25 (see FIG. 2) and meets on the upper left surface has bag portions 37 inserted alternately (see especially FIGS. c and d). A fastening belt 33 is passed through this bag portion, and the vicinity of both longitudinal ends of the belt are integrated with bolts and nuts 34 and 35 (see FIG. 2).

However, the devices shown in FIGS. 2 and 3 are still insufficient in the following points.

That is, ←) The bolts 29 are implanted and fixed in an upward direction on the extension of the cover mounting base plate 21 on the side opposite to the cover, but when installing the cushioning material fixing cloth body 27, it is necessary to work in a narrow part. Workability is poor because it has to be twisted.

■Furthermore, the belt 33 has bag portions 37 that are inserted alternately.
Since the cushioning material 25 only passes through the water, the fastening force is weak, and if buoyant force acts, that is, if water accumulates, the cushioning material 25 may float up.

Therefore, the present invention provides an undulating weir made of a flexible membrane that solves the above-mentioned problems.

The present invention will be described in detail below with reference to illustrative drawings, but the present invention is not limited thereto.

FIG. 4 is an enlarged view of the undulating weir made of a flexible membrane according to the present invention, taken in the river flow direction near the envelope membrane clamp portion (the upstream clamp portion).

In FIG. 4, the same reference numerals as in FIG. 2 indicate the same parts, but the edge of the protective cloth 28 is located at point X or Y (the rising part is not bonded at all) or Z (the rising part is left with some space and is attached to point Z). It may also be possible to finish with only adhesion (preventing dirt, etc. from entering the gap A shown in FIG. 2).

Now, in the present invention, regarding the workability of the above-mentioned problem, the bolts 29 (see Fig. 2 above) installed in the base plate 21 for securing the fixing cloth-like body 27 that wraps the cushioning material 25 are fixed. Instead, the working space is widened by tightening bolts 42 buried in the inclined surface of the concrete side wall 40 forming the recess 26 where the upstream clamp portion 7 exists.

Note that 41 is a three, 743 is a nut, and 46 is an anchor.

Regarding the fastening force of the problem, a rope 44 is used instead of the fastening belt 33 (see FIG. 2).

A detailed view of the rope to be fastened is shown in FIG.

In Fig. 5, 27 is a cloth-like body for fixing the cushioning material, 45 is a bag-like part at the end thereof, 47 is a part that breaks the continuity of the bag-like part, 44 is a rope for fastening, and two ropes are the bag-like part. The dotted lines pass through them and intersect with each other via a discontinuous portion 46.

Although FIG. 4 described the upstream clamp section, the same procedure can be applied to the downstream clamp section (
For weirs that do not have cushioning material on the inner bottom of the envelope and the inner surface of the envelope, do the same for the downstream clamp section, but for weirs that have cushioning material, they are protected by the cushioning material on the inner bottom of the envelope and the inner surface of the envelope. (Not necessarily required).

Furthermore, in FIG. 4, the case where the cover is fixed at one upstream side is different from the cover clamp part 7 of FIG. 2 in the following points, but any of these may be used.

That is, in FIG. 2, seal sheet 8 and cover sheet 1
2, but they are not used in Fig. 4, and the way they are wrapped is also slightly different as shown in the figure.

According to the present invention as described above, since the clamp part is covered with a cushioning material, the clamp part is not damaged by rolling stones, and has the following effects.

(1) Since the bolts 42 for fixing the cloth for fixing the cushioning material are attached to the concrete side wall forming the recess, that is, the wide part of the working space, the workability of attaching the cloth for fixing the cushioning material is good.

(2) A bag-like part is created by providing a part that breaks the continuity at the end of the fixing cloth, and when the rope is passed through the bag-like part through the part that breaks the continuity and is fastened, it is necessary to provide cushioning when water is stored. The material does not rise.

[Brief explanation of the drawing]

Figure 1 is a view cut in the river flow direction of a flexible membrane undulating weir equipped with a cushioning material on the inner bottom and inner surface of the envelope, and Figure 2 is a view of the flexible membrane previously invented by the present inventors. Figure 3 is a diagram cut in the river flow direction near the covering clamp part (upstream side of the tab) of the undulating weir. is a plan view, the figure is a view taken along the line A-A in figure a, figure C is a view taken along line BB in figure a, figure d is a view taken along line C-C in figure a,
Figure 4 shows the covering clamp part (
Figure 5, cut in the river flow direction near the river (upstream side)
The figures are diagrams for explaining how to apply the cloth-like body for fixing the cushioning material shown in FIG. 4, and each shows a plan view. 1... Flexible membrane envelope, 2... River bed, 3, 3/...
- Cushioning material, 4, 4'... Bag for storing cushioning material, 5... Inlet/exhaust (water) pipe, 6... Upstream water, 7... Covering clamp part, 11... Main body carpet , 13... Clamping bar 14... Rod, 15... Tune, 1
6... Bar, 17... Bolt, 18... Sleeve, 19... Anchor 20... Nut, 21... Base plate, 22° 23... Dry screw,
24...Filling material, 25...Cushioning material, 26...
・Cover attachment recess, 27... Cloth-like body for fixing cushioning material, 28... Cloth-like body for protection, 31... Seat plate, 32...
・Natsuto, 36... River bed reference plane, 37... Bag part,
38... Epoxy resin, 39... Close contact part, 40...
・Concrete slope, 41... Sleeve, 42...
・Bolt, 43...Nut, 44...Rope, 45
...Bag portion, 46...Anchor 47...Part that breaks the continuity of the bag-shaped portion, 48...Flat steel.

Claims (1)

[Scope of Claims] 1. A flexible membrane envelope is attached to at least a river bed in a direction across the river, and fluid is supplied to the interior of the envelope to cause it to expand and stand up, and fluid is discharged from the interior of the envelope to cause it to contract and fall down. Let it be and keep it small (
In the case of a weir in which a cushioning material is provided in a part of a river bed to protect the part, at least the upper surface of a cloth-like material for fixing the cushioning material that wraps and fixes the cushioning material. A protective cloth-like body is provided in the part, and the cloth-like body for fixing the cushioning material that wraps the cushioning material is fixed with bolts buried in the side wall forming the river bed recess of the cover attachment part and an upward extension of the cover attachment bolt. An undulating weir made of a flexible membrane, characterized in that it is made using a 2. When wrapping the cushioning material with the cloth-like body for fixing the cushioning material, a bag-like part is created by providing a part to break the continuity at both ends of the cloth-like body for fixing the cushioning material, and the continuity is broken in this bag-like part. An undulating weir made of a flexible membrane according to claim 1, wherein both ends of the cloth-like body for fixing the cushioning material are fastened by passing a fastening rope through the portion.