JPH0532598Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a protective fence made of precast concrete.

[Conventional technology and problems]

Various protective fences made of precast concrete have been proposed and implemented in the past, but they require time-consuming installation work such as excavation, and it is also necessary to change the shape of the foundation depending on the condition of the supporting ground, so it is necessary to respond flexibly to the situation. Can not.

There is also much room for improvement, such as reducing the weight of the members.

This idea was devised to solve the above problems, and in addition to reducing the weight of the components, it is easy to assemble, the construction period is short, there is less work such as excavation, and it can be flexibly adapted to the conditions of the supporting ground. The purpose is to provide concrete protective fences that can be used.

[Means for solving problems]

This idea involves arranging multiple concrete wall members in series in the horizontal direction, each having joints on the sides, bent tops, and lightening holes. It is characterized by being fitted into concrete blocks with grooves formed in the longitudinal direction of the upper surface and placed at regular intervals, and fixed by filling the gap between the lower part of the wall member and the grooves with cast-in-place mortar. shall be.

〔Example〕

This invention will be explained below based on embodiments shown in the drawings.

Figure 1 shows an example of a concrete protective fence, mainly consisting of a concrete block 1 and a wall member 2.
It is composed of. concrete block 1
Concave grooves 3 are formed in the longitudinal direction of the upper surface, and a plurality of grooves 3 are buried in the ground at regular intervals so that the upper end surface slightly protrudes from the ground line. The lower side surfaces of a plurality of precast concrete wall members 2 are fitted into the groove 3 of the concrete block 1, and the wall members 2 are arranged continuously in the horizontal direction. The gap between the lower part of the wall member 2 and the groove 3 is filled with cast-in-place mortar 4 and fixed.

The size, shape, etc. of concrete block 1 are as follows.
It is set to the optimum value depending on the condition of the ground, the weight of the wall member 2, etc. Further, the wall member 2 is formed of a fiber concrete board, a rice husk concrete board, etc. in addition to a normal concrete board.

2 to 5 show a first embodiment of the wall member 2. FIG.

In this embodiment, the top of the wall member 2 is bent to form a curved cross section, and an oval-shaped hole 5 for thinning is formed as shown in FIG. A vertical rib 6 may be provided in the center, and the length may be increased as shown in FIG. Furthermore, a concave portion 7 and a convex portion 8 are formed on the side surface of the wall member 2 as a joint.

6 to 9 show a second embodiment of the wall member 2. In FIG. 6, an eave-like bent portion 9 is formed at the upper end and a trapezoidal hole 10 is bored. 7th
In the figure, the upper end is rounded, an oval hole 5 is formed, and edge portions 11 are formed on both sides. In FIG. 8, a notch 13 or a protrusion 12 for fitting is provided on the side. In FIG. 9, the wall member 2 is diagonally divided in the center into two pieces, and each piece has a triangular hole.

10 to 19 show a third embodiment of the wall member 2, in which the upper end is slightly protruded forward. Figures 10 and 11 show a rectangular hole 15 in the center.
12 and 13, the side portions are made flat. In FIGS. 16 and 17, both sides of the upper part are inclined and two polygonal holes 16 are formed. 14 and 15 show edge portions 17 on both sides.
, and a round hole 18 is drilled therein. 18th
19 shows a case in which a notch or protrusion is formed on the side and a diamond-shaped hole is bored.

Figures 20 and 21 show a fourth embodiment of the wall member 2, which has a parallelogram shape for use on sloped areas. When the inclination is constant, it is more effective to form a notch 13 or a protrusion 12 for fitting on the side as shown in FIGS. 20 and 21.

24 and 25 show wall members 2 connected to each other by a joint fitting 20. In FIG. Two fittings 20 are attached to the sides of each wall member 2, and the fittings 20 to be joined are connected with bolts, nuts, etc.
The joints are later filled with mortar, etc. to seal them.

[Effect of idea]

1. The wall members are concrete blocks arranged at regular intervals and supported at the joints of the wall members, so the weight of the concrete blocks is small.
It requires less work such as digging and is easy to assemble.

2. Wall members can be easily connected and assembled in the lateral direction using joints.

3. By bending the top of the wall member, the bending rigidity can be increased, and the weight can be reduced by using the lightening holes.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of a concrete protective fence; Figs. 2, 3, 4, 5, 6, 7, 8, and 9 are perspective views showing various examples of wall members; Fig. 10;
Figure 12, Figure 14, Figure 16, Figure 18, Figure 2
0 and 22 are front views showing other embodiments of the wall member, FIG. 11, FIG. 13, FIG. 15, and FIG.
7, 19, 21, and 23 are side views, FIG. 24 is a perspective view showing the connected state of the wall member, and FIG. 25 is a perspective view showing the attachment relationship between the wall member and the joint hardware. It is. 1... Concrete block, 2... Wall member,
3... Groove, 4... Cast-in-place concrete, 5...
... hole, 6 ... vertical rib, 7 ... recess, 8 ... convex part,
9...Bending part, 10...Hole, 11...Edge part, 1
2... Protrusion, 13... Notch, 14... Hole,
15... Hole, 16... Hole, 17... Edge, 18
...Round hole, 19...hole, 20...joint fitting.

Claims (1)

[Scope of utility model registration request] A plurality of concrete wall members having joint joints on the side surfaces, bent tops, and lightening holes are arranged in series in the horizontal direction, and the lower sides of the wall members are connected in the longitudinal direction of the upper surface. Made of concrete, which is fitted into concrete blocks having grooves formed therein and placed at regular intervals, and is fixed by filling the gap between the lower part of the wall member and the grooves with cast-in-place mortar. Protective fence.