JPS5813813A - Falling dam made of flexible film - Google Patents

Abstract

PURPOSE:To secure a working space in a falling dam of a flexible film by fixing a cloth body fixing and surrounding a buffer material by using a bolt buried in the concaved side wall of river bed in sheathed clamp part and the upwardly extended part of the bolt for fitting a sheath. CONSTITUTION:In a dam in which a fluid is charged into or discharged from a flexible baggy film 11 to raise or fall down the dam and a buffer material 25 is provided in a sheathed clamp part 7 in the river bed in such a way as to protect the sheathed clamp part 7, a protective cloth body 28 is provided on at least the upper side of a cloth body 27 for fixing and surrounding the buffer material 25, a nut 43 is clamped with a bolt 42 buried in the sloped face of a side wall 40 forming a concaved part 26 where sheathed clamp part 7 exists, and a nut 32 in the upwardly extended part of the bolt 17 for fitting the sheath is clamped for fixing the cloth body 27 for fixing the buffer material. Since the bolt 42 is attached to the side wall 40 and the bolt 17 is also attached to the base plate 21, a working space can be secured.

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).

A flexible membrane undulating weir is constructed by attaching a flexible membrane envelope (bag-like body) made of rubberized cloth, for example, to the river bed in the direction across the river, and connecting it to the inside of the envelope. It is designed to expand and erect by injecting fluid such as air or water from the leading inlet/outlet (water) pipe, or to contract and collapse by discharging fluid from inside the envelope (for example, Japanese Patent Publication No. 11702/1970, Japanese Patent Publication No. 11702, 44-
(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 water when the weir collapses (the boulders move along the sheath and damage the sheath), cushioning material is placed at the inner bottom of the weir and at the bottom of the weir. 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 river bed, (3), (3') is a cushioning material, such as a foamed porous IJ ethylene material, (4), (4) 1 is a bag for storing cushioning material, such as a rubber-coated cloth bag, (5) is an inlet/exhaust (water) pipe, (6) is upstream water, (7) is a covering clamp part, and (8) is
indicates a sticker sheet.

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

In view of the above, the present inventors have previously proposed a flexible membrane undulating weir with a protective means installed in the clamp part of the sheath, i.e., when installing the sheath on a river bed as described below, it is necessary to install a cushioning material or the like in the part. Shitsuki has filed a patent application for an undulating weir made of flexible membrane with protected sections. The above will be explained using FIG. 2.3.

FIG. 2 is an enlarged view of the flexible membrane undulating weir near the enveloping 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 material, (4) is a cushioning material storage bag such as rubberized cloth, (the force is the covering clamp part, and (8) is a sealing sheet. Some things are the same as those described with reference to FIG.
) is the main body carpet or envelope, (12) is the cover sheet, (13) is the clamping bar, (14) is the rod,
(15) is a tube, (16) is a bar, (17) is a bolt, (18) is a sleeve, (19) is an anchor, (20)
) is nut, (21) is base plate, (22),
(23) indicates a drive screw, and (38) indicates an epoxy resin.

In particular, in the above, the covering clamp part (7) is as follows.
In order to protect it from boulders and the like, a cushioning material (25), such as a foamed polyethylene material, is placed in an enveloping recess (26) that is recessed from the river bed reference plane (36) where the clamp part (7) is present. That is, as is clear from Fig. 2, the covering clamp part (
7), the cushioning material (25) is wrapped in a fixing cloth material such as a rubberized cloth (27) and planted in the base plate (21) so as to match the shape of the recess (26). Using the bolt (29), nut (30) and pole (17), attach the bolt (17), two seat plates (31), and the nut (17).
32). At this time, the reference plane (36) of the protective river bed (2) is formed on the upper surface 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,
(65) is Natsu.

The cushioning material (25) can be wrapped with the cushioning material fixing cloth (27) as shown in FIG. 3, for example. Figure (al is a plan view, figure (bl is a figure (al's A-A arrow view, figure (C1 is a figure (a)'s B-B arrow view, figure (dl is a figure (al's C-C arrow view) This is a perspective view.

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

It is clear from these figures that the tip of the cushioning material fixing cloth (27) that wraps the through-hole cushioning material (25) (see FIG. 2) and meets on the upper left surface has bag portions (67) inserted alternately. Figure (C1, see (dl)) A fastening pel (33) is passed through this bag, and the belt is integrated with bolts (34) and (35) near both ends in the length direction of the belt. (
(See Figure 2).

However, what is shown in Figure 2.3 is still insufficient in the following points. (29) is the base plate L for mounting the cover,
-) It is planted and fixed upward on the opposite side of the envelope of (21), but when attaching the cushioning material fixing fabric (27), it is necessary to work in a narrow part. Department (37
), 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, cut 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 out of place) or (Y) (all rising parts are non-adhesive) or (
Z) (The rising portion may be glued only at the point (Z) with some space (to prevent dirt etc. from entering the gap (A) shown in Fig. 2)). Now, in the present invention, regarding the workability of the above-mentioned problem 0), the base plate for retaining the fixing cloth-like body (27) that wraps the cushioning material (25) (
Bolt (29) installed in 21) (see Figure 2 above)
Instead of the recess (2) where the upstream clamp part (7) is located.
6) The working space is widened by tightening bolts (42) buried in the inclined surface of the concrete side wall (40). Note that (41) is sleeve 1. (43) is a nut, and (46) is an anchor.

Regarding the fastening force of problem point (33)
(See Fig. 2) Instead, it is fastened by a rope (44). 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, and (44) is a rope for fastening. The two ropes pass through the bag-shaped portion as shown by dotted lines 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, there is a seal sheet (81) and a cover sheet (12), 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.

(Phrase: Pol to hold the cloth-like body for fixing the cushioning material) (42
) The workability of attaching the cloth material is good.

β) Create a bag-like part by providing a part that breaks continuity at the end edge of the fixing cloth. When passing a rope through this bag-like part through the part that breaks continuity, and fastening it, it will buffer the water during storage. The material does not rise.

[Brief explanation of drawings]

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 undulating weir. al is a plan view, figure fbl is a figure (A-
A arrow view, figure (C1 is figure (al no B-B arrow view, figure (
dl is a c-c arrow view of figure (al), Fig. 4 is a view cut in the river flow direction near the enveloping clamp part (the upstream side of the turret) of the flexible membrane undulating weir of the present invention, Figure 5 is a diagram illustrating how to apply the cloth-like body for fixing the cushioning material in Figure 4, and shows an example of a plan view. (1) Flexible membrane envelope, (2)...・Riverbed, (3
), (3')...Cushioning material, (4), (4')...Cushioning material storage bag, (5)...Inlet/exhaust (water) pipe, (6
)... Upstream water, (7)... Covering clamp part, (11
)...Body carpet, (13)...Clamping bar, (14)...Rod, (15)...Tube, (16)...Bar, (17)...Bolt, ( 18
)...Sleeve, (19)...Anchor, (20)
... oak), (21) ... base plate, (
22), C25)... Drive screw, (24
)...Filler, (25)...Cushion material, (2
6)... The cover is attached to the recess, (27)... Cloth-like body for fixing the cushioning material, (28)... Cloth-like body for protection, (31)... Seat plate, (
32)...nuts, (36)...river bed reference plane, (
37)...Bag portion, (3B)...Epoxy resin, (6
9)... Close contact part, (40)... Concrete slope, (41)... Sleeve, (42)... Bolt, (
43)...Natsuto, (44),...rope, (45
)...Pouch, (46)...Anchor, (47)...Part that breaks the continuity of the pouch, (48)...
・Hirako's agent Patent attorney Masashi Yoshitake (, Figure 1)

Claims (1)

[Claims] (1) Attaching the flexible membrane envelope in the direction across the river at least to the river bed is such that fluid is sent inside 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. In addition, at least in the river bed area, a cushioning material is provided in the part where the sheathing is attached, and a cloth-like material for fixing the cushioning material is used to wrap and fix the cushioning material in the weir where the weir is designed to protect the part where the sheathing is attached. At least the upper surface part is provided with a protective cloth-like body, and the cloth-like body for fixing the cushioning material that wraps the cushioning material is fixed with bolts embedded in the side wall forming the river bed recess at the furthest extension part of the cover and for attaching the cover. A flexible membrane undulating weir I-→iφ-4 characterized in that it is made using the upward extension of a bolt. A bag-like part is created by providing a part on each end edge of the cloth-like body to break the continuity, and a fastening rope is passed through the bag-like part through the part to break the continuity, and both ends of the cloth-like body for fixing the cushioning material are attached. An undulating weir made of a flexible membrane according to claim (1) of the concluded patent claims