JPS5952008A - Block for revetment - Google Patents

Abstract

PURPOSE:To improve the connection and stability of blocks by a method in which one side face of a block having legs on the four corners of its square base plate is shaped into a trapezoidal wedge form and also the opposite side face of the trapezoidal wedge form side is shaped into an inversely trapezoidal wedge form in order to make up a block for revetment. CONSTITUTION:In a concrete square block having legs L'1, L'2, L'3, and L'4 on the four corners of its square base plate P1, one side (e.g., L'3 and L'4 sides) of the base plate P1 is notched into an inversely trapezoidal wedge form side view and an upside-view trapezoidal wedge form, and the other side (e.g., L'1 and L'2 sides) is notched into a trapezoidal wedge form side-view and a trapezoidal form when it is looked down in order to make up a block for revetment.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a concrete foundation block that is laid as a bed for river and coastal agriculture.

Conventionally, this type of concrete block has been constructed with only planar interlocking based on a two-dimensional concept in mind. Although this type of construction method can maintain stability against lateral forces, there are many cases in which the uplift force of the waves that actually acts is not absorbed and breaks down individually. The present invention is characterized by considering three-dimensional combinations and maintaining stability by resisting forces acting in the vertical direction.

The gist of this invention is that, in a square concrete block having legs at the four corners of a rectangular substrate, one side is cut out into a trapezoidal model, and the opposite side is cut out into an inverted trapezoidal wedge. It's on the bed guard block.

Here, the shape of the legs on the rear side of the cocoon of the substrate may be such that the front and rear surfaces are flat without protruding in the rear direction at all, as shown in this example, or the legs on the front and rear surfaces may be flat. As with the left and right sides, they can also be made to protrude into trapezoidal or inverted trapezoidal shapes so that they mesh with each other on the front and rear surfaces. Further, the substrate may be provided with a suitable water escape window or opening.

The present invention will be explained below based on examples.
(B"), (B3)... are the bed protection blocks of this embodiment, (L, 1) l (L)), (Lj), (Lt)
, (acceptable).

Gt) ... is - (B') of the floor block, (B
2)...The upper index of the 0 leg section indicates the number of the bed protection block, (L)), (L4) (=1.2.
... is provided on the left side, (L~), (L!, )
i=1.2... is provided on the right side. (Fl.
k) + (p21), (F3') CF4')
, (Fl”), (F,”)... are the legs (
L”1) l (L1□).

(L', ), (r4) are the inner circumferential wall surfaces of the legs facing each other on the left and right sides. (P'), (P")・
...hall! Urine block (B').

(B2)... is the substrate. In this example, the decorations laid on the blocks for the haze floor are first the blocks for the wisteria floor (B"),
(B”).

(B3) Arrange... in the ^1■ back- column without any gaps.

Next, using a lifting machine such as a crane, the right row of haze floor blocks (B11 > , (B22 >...) are arranged into block groups (B''), '(B2), (B''), The sky that is bitten by ... is a bed protection block (B'), (B2
), the opposing inner circumferential walls (F, '>, <8'> of the right leg (Lll), (L″4) are cut out in the shape of an inverted trapezoid and widen upward (see Fig. 2.6). The expansion shows the angle α), leg <B13>, o
, ”, ＞ is a cedar-shaped space, υ, and in this space, the right row of bed protection blocks (BIO＞ , (Bil ＞
Insert the legs (L-〇) and (r, :1).

The combined outer shape of the legs (t, I; ), B) is an inverted trapezoid, so 11141 parts (L~>,
It fits well into the inverted trapezoidal mouth-shaped space between (B14).Furthermore, the opposing inner circumferential wall surfaces of the legs (L3)+aJ:) <B41>, CF, "> open outward to expand. Inner peripheral wall surface (4°) of the leg part (L1□.>, (t,",'>).

Its expansion illustrates the angle β. ), the harvest bed blocks (B") and (B") are moved from the right to the yam so that they fit together smoothly. Other drawing blocks (B") of the same pattern are also engaged in the same way. In this way, the right row protection bed blocks (B"), (B
”)... blocks for bed protection (B”)
, (B2)... To complete the laying, -4 bed guard block (B") + (B")... block group, further right row bed block group are engaged. ,
The blocks for the I floor are interlocked and laid in the 11th right direction. Figure 9 shows an example of installation on the slope of the coast. If lift force and hydraulic pressure act on the integrated drawing block whose legs are interlocked in this way, and one tumor bed block tries to lift up, the trapezoidal shape of the right side bed block will appear. It engages with the wedge-shaped leg and works to lift the steamed bun block on the right side, weakening the lifting of the floor block, and the striking≠floor block on the right side further lifts its own a+ floor block on the right side. As a result, static and dynamic pressure such as uplift force acting on a single bed protection block is not absorbed by the entire bed protection block, and is strongly prevented from disturbing or collapsing the bed protection block. be.

As described above, according to the present invention, the 1141 bed blocks are perfectly engaged, the sowing bed blocks are easily integrated, and the 1141 bed blocks are extremely stable against static and dynamic pressures such as hot water pressure. It has the effect of preventing the movement, overturning, and collapse of buildings, and also being easy to construct.

[Brief explanation of the drawing]

Fig. 8A1 is a plan view showing the pyuria block of the present invention, Fig. 2 is a view on the right side 1, Fig. 3 is a left side view, Fig. 4 is a rotation 1III view, Fig. 5 is a perspective view, and Fig. 5 is a perspective view. Figure 6 is a plan view showing the state in which bed protection blocks are laid, Figure 7 is a right side view of one column group of bed protection blocks, and Figure 8 is a left side view of the right column group next to the same column group. Figure 9 is an explanatory diagram showing the state in which it is laid on the slope of the coast.
M L', >...Bow leg (F", M F2)
・Archive inner peripheral wall surface (P"), (B2)...α crystal plate

Claims (1)

[Claims] 1) In a concrete rectangular block having legs at the four corners of a rectangular board, one side is cut out into a trapezoid model, and the opposite side is into an inverted trapezoid! A bed protection block characterized by a notch in the shape.