JPH069051Y2 - Concrete frame for seawall - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a concrete wall for seawall installation which is installed on the embankment when reinforcing the embankment of a river or a coast with concrete.

(Prior art) Conventionally, for the purpose of solidifying the surface of rivers and other embankments with concrete for revetment work, after smoothing the surface, a plate material etc. was used to determine the horizontal and vertical directions of the surface. The molds were assembled at intervals of, and concrete was poured into the molds to form a concrete quay.

(Problems to be solved by the invention) Therefore, in revetment work for forming a concrete quay, not only a large number of skilled workers are required for assembling the formwork at the construction site, but also concrete There was a drawback that a long construction period was required for casting and curing.

In view of the above, the present invention is intended to provide a concrete wall for a seawall that does not require many skilled workers at the construction site for the seawall construction and that the construction period can be significantly shortened as compared with the conventional case. .

(Means for Solving the Problems) In order to achieve the above object, in the present invention, a suitable number of vertical streaks arranged across substantially the entire length in the vertical direction are formed by connecting them by an assembly bar. Reinforcement cages are housed inside and manufactured at the factory, and they are arranged in multiple rows in series at a predetermined interval between the foundation work and the protection work that are placed in the lower and upper parts of the embankment, etc. in the lateral direction. A vertical frame made of a concrete vertical frame and a rebar cage like the vertical frame that is manufactured in a factory, and is arranged in series between the foundation work and the protection work at a predetermined interval. A concrete horizontal frame placed at a predetermined location between the vertical frame and the horizontal frame fixed to the surface of an embankment or the like by an intermediate material of concrete placed in the middle part thereof Is.

(Embodiment) Next, the present invention will be described with reference to the drawings showing an embodiment. In FIGS. 1 to 4, a vertical frame 1 made of concrete in a factory has a vertical direction inside thereof. Reinforcing bars 4 (hereinafter referred to as vertical bars) are arranged parallel to each other over a substantially entire length, with three bars at the top and three bars at a predetermined interval. In manufacturing the vertical frame 1, the vertical reinforcing bars 4 are assembled by an appropriate number of assembly reinforcing bars 5 provided at predetermined intervals in the longitudinal direction to form a reinforcing bar cage 6. Then, when the rebar cage 6 is placed in a mold (not shown) and concrete is poured into the mold, the vertical frame 1 having the rebar cage 6 built therein is formed.

The vertical frame 1 is manufactured in various lengths and in different end face shapes depending on the use place.

5 and 6 show a revetment G formed on the surface of a river. In this figure, the quay follows its slope,
There are an inclined slope K that is leveled flat and a horizontal section S that is leveled above the inclined slope K. At the lower end of the sloped surface K, in the lateral direction with respect to the sloped surface K,
The foundation work B is placed by concrete by the conventional method of assembling the formwork on the site, and the horizontal work surface S is provided with a rectangular protection work P at a portion slightly entering from the upper end of the slope K. It is placed by concrete so that it is almost parallel to.

Then, on the slope K between the foundation work B and the protection work P, the foundation concrete C is poured uniformly at a predetermined height. The lowermost vertical frame 1 (hereinafter referred to as the lower vertical frame) arranged on the side of the foundation work B is moved by using a hoist or the like (not shown), and then the front end face 1a of the foundation work B is inclined. Inside upper surface Ba
It is placed on the upper surface of the concrete C while being brought into contact with the concrete C. Then, similarly using a hoist or the like, an intermediate vertical frame 2 (hereinafter referred to as an intermediate vertical frame) is arranged in a line above the lower vertical frame 1, and the front end face 2a of the intermediate vertical frame 2 is arranged behind the lower vertical frame 1. End face 1
The intermediate vertical frames 2 are aligned in a row above the lower vertical frame 1 by abutting against b (see FIG. 6). Similarly, a vertical frame 3 (hereinafter referred to as an upper vertical frame) is provided above the rear end surface 2b of the intermediate vertical frame 2.
The front end face 3a of the upper vertical frame 3 and the rear end face 3b of the upper vertical frame 3 to the front face Pa of the protective work P, and the upper vertical frame 3 is placed horizontally on the concrete C of the horizontal section S. ,
The upper vertical frame 3, the intermediate vertical frame 2, and the lower vertical frame 1 are aligned in series. At this time, the upper surface of the upper vertical frame 3 is at the same height as the upper surface of the protective work P (see FIG. 5).

Similarly to the above, an appropriate number of lower vertical frames 1, intermediate vertical frames 2 and upper vertical frames 3 are arranged in parallel at predetermined intervals as shown in FIG.

Horizontal frame 7 shown in FIG. 5 and FIG. 6 (hereinafter referred to as lower horizontal frame)
The horizontal frame 8 (hereinafter referred to as the middle horizontal frame) is a concrete block manufactured at the factory by the same method as the lower vertical frame 1, and its height is the same as that of the lower vertical frame 1. Has become.

The lower horizontal frame 7 has a rectangular cross section whose thickness is thinner than its height. The lower horizontal frame 7 is placed on the base portion C between the lower vertical frames 1, 1 in a state where both side end surfaces 7a, 7a are in contact with the rear side surfaces of the pair of lower vertical frames 1, 1. . At this time, the rear end surface 7b of the lower horizontal frame 7 is substantially in the same plane as the rear end surface 1b of the lower vertical frame 1.

The middle horizontal frame 8 is manufactured in the same manner as the lower horizontal frame 7,
It has the same height and length as the lower horizontal frame 7, and its thickness is
It is thicker. The middle horizontal frame 8 has an inclined surface 8b whose upper rear side is inclined downward, and its front end surface 8a is brought into contact with the rear end surface 7b of the lower horizontal frame 7 so that the concrete C is parallel to the lower horizontal frame 7. Placed on top.

A horizontal frame 9 (hereinafter, referred to as an upper horizontal frame) arranged above the middle horizontal frame 8 has a thickness smaller than that of the middle horizontal frame 8 except for the thickness.
Has a shape similar to that of the above, and the rear side of the upper part thereof is an inclined surface 9a inclined downward. The upper horizontal frame 9 is placed on the concrete C between the intermediate vertical frames 2 and 2 in the vicinity of the center of the intermediate vertical frame 2.

As described above, a plurality of lower vertical frames 1, intermediate vertical frames 2 and upper vertical frames 3 are placed on the concrete C of the river, respectively, and a lower horizontal frame 7 is provided between the lower vertical frames 1, 1. Moreover, after arranging the middle horizontal frame 8 and the upper horizontal frame 9 between the respective intermediate vertical frames 2 and 2, a concrete intermediate material 10 is provided between these vertical frames and horizontal frames at a predetermined height (see FIG. 5). (Indicated by the line 10a in FIG. 2), a revetment G is formed.

(Effect of the Invention) Since the present invention is configured as described above,
The following effects are achieved.

Since each vertical frame and each horizontal frame is manufactured at the factory, it is necessary to assemble the formwork for forming the vertical frame and the horizontal frame at the revetment site, concrete placing work on the formwork, and its curing period as in the past. Therefore, not only can the construction period for revetment formation be significantly shortened as compared with the conventional method, but also the number of on-site work steps can be greatly reduced without requiring skilled workers as in the conventional case. In addition, various vertical frames and horizontal frames can be formed in the factory by using accurate molds and their shapes and dimensions can be formed accurately, and they can be made compatible with each other. Attaching work can be done easily and easily.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a plan view of a concrete vertical frame 1, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a state of a rebar cage in FIG. Figures and 4 are diagrams showing the arrangement of vertical streaks in the vertical frame, and Figure 5 is a side view of the seawall formed using the vertical and horizontal frames (cross-sectional view taken along the line VI-VI in Figure 6). FIG. 6 is a plan view of FIG. 1, 2, 3 ... Vertical frame, 4 ... Vertical bar 5 ... Assembly bar, 6 ... Reinforcing bar cage 7, 8, 9 ... Horizontal frame, B ... Foundation work G ... Revetment, K ... Inclination Slope P …… Protection work, S …… Horizontal cross section

Claims (1)

[Scope of utility model registration request] 1. A reinforcing bar cage formed by connecting a suitable number of vertical bars arranged over substantially the entire length in the vertical direction by an assembly bar is housed inside and manufactured at a factory. Vertical frames made of concrete, which are placed in a plurality of rows at a predetermined interval in series between the foundation work and the protection work that are placed in the lower and upper parts of the horizontal direction, respectively. It is stored in the factory and manufactured at the factory, and in series between the foundation work and the protection work,
And a horizontal frame made of concrete arranged at a predetermined position between the vertical frames arranged at a predetermined interval, and the vertical frame and the horizontal frame are made of an intermediate material of concrete placed in the middle part thereof. A concrete wall for revetment, which is fixed on the surface of levee.