JP2000160532A - Stone packing revetment lattice - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stone packing lattice for a revetment more excellent in workability and an external appearance instead of a wire cylinder by forming the revetment by packing stones inside by heaping up the stone packing lattice in several stages. SOLUTION: In a lattice 10, four lateral members 11a are juxtaposed at intervals in parallel to each other, and two longitudinal members 11b are placed at a right angle on these to be fixed by bolts/nuts. This lattice 10 is stacked in several stages along a riverbank. The lattice is not vertically stacked, but is stacked by imparting a gradient so as to retreat little by little from a river. Stones are packed in the lattices 10 stacked in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a revetment latticework for stacking stones along a shore such as a river, a lake, or the sea, and filling a cobblestone or the like into the revetment.

[0002]

2. Description of the Related Art As shown in FIG. 1, a method of packing stones in a snake basket A (iron wire basket) and stacking the stones on a riverbank has conventionally been used. Such a revetment is a place where aquatic animals such as small fish inhabit between the stones in the basket, and over time, plants such as reeds grow, leaving a natural landscape that cannot be obtained with concrete revetment. .

[0003] Such a serpentine cage is formed by forming a frame with a thick wire and laying a wire mesh around the frame, and is originally easily deformable. For this reason, when packing stones, it is necessary to proceed with care so as not to deform the car. Also,
Even with careful work, there is a drawback that the car is unavoidably deformed to some extent and the finish is not good.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a stonewall grate for revetment which can be used in place of a serpentine cage and has more excellent workability and appearance.

[0005]

According to the present invention, a plurality of parallel wooden bars are stacked in two stages and the members of the upper and lower stages are orthogonally stacked. For example, each 2
The lattice is formed in a grid shape when formed by each, but it can be formed in a ladder shape by further increasing the number. The grid is formed so that the distance between the wooden rods in the direction along the waterfront is smaller than the length of the wooden rod perpendicular to the lattice so that the lattice can be stacked with a gradient. It is preferable that the wooden rod to be used is subjected to an antiseptic treatment so that it does not easily rot in water. For joining the wooden rod and wooden rod, nails, bolts and nuts can be used,
If necessary, a joint fitting can also be used.

[0006] The lattices thus assembled are stacked along the waterside. Moreover, the grids in the upper row are stacked so as to retreat from the waterside. Since the distance between the wooden rods in the direction along the waterside is formed smaller than the length of the wooden rod perpendicular to the waterside, the wooden rods can be stacked so as to gradually recede from the waterside.

The upper and lower lattices are fixed to each other with bolts or the like. Pack the stones inside the grids of each step. The stone may be cobblestone or split stone, but if it is smaller than the gap of the lattice, that is, the thickness of the vertical or horizontal members, it is easy to get out of the lattice, so use a stone as large as possible.

As described above, in the lattice according to the present invention, the interval between the wooden rods in the direction along the waterside is formed smaller than the length of the wooden rod perpendicular to the waterside. Can be stacked in a stable state. In this way, by stacking the grids at an angle so as to recede from the waterside, the grid is more stable than when stacked vertically, and is less likely to collapse during a flood. In addition, since the vertical and horizontal members are stacked in two stages, a large gap can be formed when the members are stacked, fish can enter and leave through the gap, and an environment where creatures can easily live can be provided.

[0009] Further, since this lattice is formed of wood, it is possible to maintain a natural texture not found in concrete. In addition, if a grid is made in a factory and transported to the waterside and stacked, seawalls can be easily formed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG.
A plurality of wooden rods 11 are connected in a ladder shape. That is, the four horizontal members 11a are arranged in parallel with an interval, and the two vertical members 11b are fixed at right angles on the four horizontal members. The vertical member 11b is attached to a position slightly inward from the end of the horizontal member 11a, and the interval between the vertical members is made smaller than the length of the horizontal member. The wooden rod 11 used is a cedar or karamatsu drum, 10 to 12 cm in thickness, length is 2.0 m for vertical member 11 b, and horizontal member 11 a.
Is 1.2 to 2.0 m.

The vertical and horizontal wooden rods 11 are fixed using bolts 12 and nuts 13. As shown in an enlarged manner in FIG. 2, the nut 13 is formed by integrally providing a flange 13b at the head of an elongated cylindrical body 13a having an internal thread formed on the inner peripheral surface thereof. A bent claw 13c is provided. This nut 13 is inserted into the bolt hole 1
5, the collar 13 b is beaten, and the claw 13 c is cut into the rod 11 and fixed. The bolt 12 inserted from below is screwed into the nut 13 and tightened. The tip of the bolt 12 reaches only to the middle of the nut cylinder 13a, and the upper half of the nut cylinder is used later for coupling the lattice (FIG. 4).

The grid 10 is assembled at a factory, loaded on a truck, and carried to the site. However, since the grid 10 is flat and not bulky, the loading efficiency on the truck is good. Such grids 10 are stacked in several stages along the river bank as shown in FIGS. The grids are not stacked vertically, but are stacked with a gradient (for example, one-to-0.5) to gradually recede from the river.

To connect the upper and lower grids 10, a bolt 17 is passed down from a bolt hole 16 formed in the cross member 11a and screwed into a nut 13 of the lower grid (FIG. 4). The left and right grids are shown in Figure 3.
As shown in FIG. The lowermost grid 10 may be merely placed on the riverbed, but as shown in FIG. 5, the pile 20 may be struck and supported so that it does not shift.

In the stacked grid 10, stones 21
(Cobble stones and crushed stones). Use a stone with a diameter of at least about 10 cm so that it does not come out of the gaps in the lattice.

In this way, a revetment as shown in FIG. 5 can be formed. However, in this case, the grids 10 are stacked in such a manner that they retreat to the shore side, and have good stability and are hardly collapsed in a flood. When the revetment is high and the number of steps of the lattice 10 is large, the cross members 11a of each lattice are formed long so as not to become unstable. In addition, the revetment in FIG. 5 has a space between the horizontal member and the horizontal member 11a, and creatures such as fish can enter and leave the lattice from this gap, and the lattice serves as a dwelling place for living things.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a revetment using a conventional snake cage. .

FIG. 2 is a perspective view of a wooden frame, with an enlarged view of a nut.

FIG. 3 is a perspective view showing a state in which wooden frames are stacked.

FIG. 4 is a cross-sectional view showing a state in which the wooden frames are joined, and is partially enlarged.

FIG. 5 is a sectional view of a revetment using a wooden frame.

[Explanation of symbols]

 10 lattice 11 wooden rod 11a horizontal material 11b vertical material 21 stone

Claims (1)

[Claims] 1. A quadrangular frame for stacking several levels and packing stones inside to form a revetment, and two upper and lower wooden members are orthogonal to two parallel wooden rods. A seawall grid for stuffing stones that is stacked in such a way that the distance between the wooden rods in the direction along the waterside is smaller than the length of the wooden rods that are orthogonal to this.