JP3002855B2 - Method of constructing a wall and blocks for the wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention enables quick and reliable construction without using a mortar or other bonding agent for joining blocks together, and also devises a method of stacking blocks and a combination of types of blocks. Accordingly, the present invention relates to a method of constructing a fire wall and a block for the fire wall which can be finished to a kind of elegant appearance.

[0002]

2. Description of the Related Art As a method of constructing a wall by stacking block materials, a method of constructing a block wall using a concrete block provided with a vertically penetrating cavity is well known.
Recently, as a concrete block for constructing a fire wall, an engagement protrusion and an engagement groove for stacking and positioning of vertically adjacent blocks are provided on the upper and lower surfaces of the block. When the blocks are stacked, the engaging projections and the engaging grooves of the upper and lower blocks are engaged with each other to prevent the blocks from slipping, so that it is not necessary to apply mortar for joining between the blocks, and almost no reinforcing steel bar is required. become.

[0003]

In the above-mentioned block wall construction method, a joining mortar is provided between adjacent blocks in both left and right directions and up and down directions, and furthermore, mortar is arranged while arranging a reinforcing bar in a hollow portion. The work of filling is necessary. Therefore, the construction requires considerable experience and a lot of labor and time. On the other hand, a block for a wall provided with a projection and a groove for engagement does not require mortar filling and rebar arrangement work, so that even an unskilled person can easily and reliably construct the block. However, the wall built using this method is finished with a noppelled, flat and dull appearance. There was a need for further innovation. Accordingly, an object of the present invention is to eliminate the need for a bonding agent such as mortar, and to enable simple, reliable, and quick construction even by an unskilled person. It is an object of the present invention to provide a method for constructing a wall and a block for a wall.

[0004]

According to the first aspect of the present invention, there is provided a method for constructing a retaining wall according to the present invention, wherein a plurality of engaging grooves are provided on an upper surface and a lower surface, respectively.
b is used in parallel with a predetermined interval in the front-rear direction, and when the blocks 1 are stacked,
The blocks 1 adjacent to the left and right are stacked while being appropriately shifted in the front-rear direction, and the blocks 1
Of the plurality of engagement grooves on each of the contact surfaces, a pair of engagement grooves 2a and 2b are opposed to each other, and are straddled between the two grooves.
The positioning and engagement of each block 1 are performed by inserting and engaging the engagement member 3. Further, the retaining wall block according to the present invention is used in the method for constructing a retaining wall according to claim 1, wherein the upper surface 1 a and the lower surface 1 are provided.
b, a block 1 in which a plurality of engagement grooves 2a and 2b are provided in parallel at predetermined intervals in the front-rear direction. Then, the blocks 1, which are vertically adjacent to each other,
1, the plurality of engagement grooves 2a,
It is preferable to attach an engaging member 3 which is inserted between any pair of the engaging grooves 2a and 2b. The engaging grooves 2a and 2b have a substantially L-shaped cross section.
The engaging member 3 may have a substantially U-shaped cross section. Further, it is preferable that a mortar filling hole 4 is provided vertically penetrating on one side of the block 1 in the longitudinal direction.

[0005]

[Function] In order to construct a wall using block 1 of the present invention,
First, first blocks 1 are laid in a column on a concrete foundation. On top of that, the second-stage blocks 1 are set up in a tandem manner.
Instead of being superimposed exactly on the individual blocks 1, the individual blocks 1 are placed relatively slightly shifted in the front-back direction (and the left-right direction) (see FIG. 1). The shift can be arbitrarily determined according to the aesthetic sense of each individual installer. Then, in parallel with this stacking operation, the adjacent blocks 1 and
The two members 1 and 2 are engaged with each other by the engaging member 3 and are positioned in a stacked manner. This operation is very simple. First, of the plurality of engagement grooves 2a provided on the upper surface of each lower block 1, the engagement groove 2a is located at a position where the effect of engagement with the upper block 1 is considered to be the largest. The lower half of the engaging member 3 is dropped into one engaging groove 2a. At that time,
The engaging member 3 is provided so as to straddle between the blocks 1 and 1 adjacent to each other on the left and right. Thereafter, the second-stage block 1 is connected to the engagement member 3 in which a predetermined one of the plurality of engagement grooves 2b provided on the lower surface thereof projects halfway from the upper surface of the first-stage block 1. What is necessary is just to mount so that it may fit. As a result, each of the blocks 1 adjacent vertically and horizontally is engaged with the engaging member 3.
, And are firmly engaged and positioned integrally.
In the following, if the third and higher blocks 1 are stacked in the same manner as described above, the construction work of the lock wall is extremely easy and quick.
And it is surely completed. The front face of the completed bunker is different from the noppelled plane of the conventional method, and it can be finished into a concave and convex surface with a kind of elegant appearance depending on the sense of the installer.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an earth retaining wall will be described below with reference to the drawings. The block 1 of this embodiment shown in FIG. 2 is made of concrete and is formed in a substantially rectangular parallelepiped in which the dimensional ratio of height, width, and height is arbitrarily selected. Although not illustrated, the front side of the block 1 may be subjected to various known decorative processes such as a "split surface".

The flat upper surface 1a and lower surface 1b of the block 1
As shown in the figure, engagement grooves 2a and 2b having a substantially symmetrical shape at the top and bottom at predetermined intervals in the front-rear direction of the block 1.
Are provided in parallel with each other in the left-right direction of the block 1 by a plurality of lines. In this case, the number of grooves is four on each of the upper and lower surfaces, and the intervals between the grooves are the same. Also, the engagement grooves 2a, 2b
The upper surface side engaging groove 2a has a substantially L-shape, and the lower surface side engaging groove 2b has a substantially L-shaped upside-down direction.
A plurality of types of blocks 1 are prepared just like blocks of toys without making the shapes and dimensions uniform (see FIG. 1).

FIG. 3 shows an engaging member 3 for positioning the blocks 1 adjacent to each other vertically and horizontally and for integrally engaging the blocks. The engaging member 3 of this embodiment has a shape similar to a section steel having a U-shaped cross section, and its length dimension is equal to or several times the length of the block 1. The metal engaging member 3 is subjected to rustproofing. As shown in FIG. 1, the dimensions of each part of the cross section of the engaging member 3 are different from those of the plurality of engaging grooves 2a and 2b provided on the respective contact surfaces of the vertically adjacent blocks 1 and 1, respectively. , Each one
With the pair of engagement grooves 2a, 2b brought to the directly facing position,
The dimension of the engaging member 3 is set so that it can be tightly and easily inserted by being straddled between the two grooves 2a and 2b.

In FIG. 1 showing the state of construction of the tongue wall A, the uppermost block 1A of the tongue wall A need only be provided with an engagement groove 2b only on the lower surface 1b side. In FIG. 1, reference numerals B and C denote ground, D denotes a concrete foundation for constructing a wall A, E denotes a reinforcing steel bar thereof, and F denotes a mortar for joining.

FIG. 4 shows a lower block 1B. The left and right side end surfaces of the block 1B are provided with semi-cylindrical depressions 1c in the vertical direction. Mortar is injected into the recess 1c with the reinforcing bar E protruding above the concrete foundation D being inserted as shown in FIG.

Next, the operation of the above configuration will be described with reference to FIG. In order to construct the wall A using the blocks 1 (and 1A, 1B) and the attached engaging members 3, first, a concrete foundation D is cast. At that time, the first stage block 1
An L-shaped reinforcing bar E for firmly combining B with a concrete foundation D is provided as shown.

Then, on the concrete foundation D, the first-stage blocks 1B are laid in tandem while mortar is laid. At this time, the left and right adjacent blocks 1 and 1 may be slightly shifted from each other in the front-rear direction to have a design change. In addition, mortar is injected into the depression 1c where the reinforcing bar E is disposed.

Next, the second-stage blocks 1 are set up in a tandem configuration, without using mortar. The individual blocks 1 are not simply superimposed and placed on the first block 1 exactly, but are provided with an irregular surface having a decorative effect on the front surface of the completed wall A. May be relatively shifted in the front-rear direction (see FIGS. 1 and 6). This adjustment can be freely determined according to the aesthetic sense of each individual installer.

In parallel with or prior to the stacking operation of the second-stage blocks, the first-stage blocks 1B are engaged with each other, and the first-stage and second-stage blocks 1B and 1B are engaged.
And an assembling operation of the engaging member 3 having a role of engaging with each other. This operation is very simple. First, of the plurality of engagement grooves 2a on the upper surface 1a of each block 1B of the first stage, the degree of displacement of the first and second blocks 1B, 1 in the front-rear direction. Then, one engagement groove 2a occupying a position where the engagement effect can be maximized is selected, and the lower half of the engagement member 3 is dropped. At this time, the length of the engagement member 3 is
If the length is shorter than the length, the engaging member 3 is straddled between the left and right adjacent blocks 1B, 1B and dropped.

Thereafter, the second-stage block 1 is mounted. At this time, a predetermined one of the plurality of engagement grooves 2b on the lower surface 1b of the block 1 is inserted into the upper half of the engagement member 3 protruding above the first-stage block 1B. So that And when you push the second block 1 forward,
The engaging member 3 straddles both the engaging grooves 2a and 2b and is fixed in the grooves without play. Thereafter, if the third and higher blocks 1 are sequentially stacked in the same manner as described above, the construction work of the lock wall A is completed very simply, quickly, and reliably.

The front surface of the completed fire wall A is not a simple "one surface" but an irregular surface designed in design, so that it has a kind of appearance that is not required for a conventional fire wall. Finished.

FIGS. 5 and 6 show a corner block 1C for constructing a corner of the wall A and a construction method thereof. The block 1C is provided with a mortar filling hole 4 on one side in the longitudinal direction so as to penetrate vertically.
In addition, the front edge and one side surface of the block 1C have an upper edge formed in a chamfered shape for decoration.

FIG. 6 shows an example of the structure of the corner of the fire wall constructed using the block 1C. The vertically adjacent blocks 1C, 1C are stacked so as to be orthogonal to each other as shown in the figure, and so that the respective mortar filling holes 4 communicate vertically. Each mortar filling hole 4 communicated with the mortar is filled with a reinforcing bar E. This ensures that the corners of the fire wall have the necessary structural strength.

In the above configuration, the object of the present invention can be achieved even if the detailed structure is appropriately changed in design. For example,
The cross-sectional shapes of the engagement grooves 2a and 2b are not limited to those illustrated, and may be trapezoidal or other arbitrary shapes. In that case, the cross-sectional shape of the engagement member 3 may be made to correspond to the shape of the engagement grooves 2a and 2b. The arrangement and number of the engagement grooves 2 may be determined according to the size of the block 1.

[0020]

As is apparent from the above description, various excellent effects can be obtained by employing the method for constructing a fire wall and the fire wall block according to the present invention. (A) Since it is not necessary to use a mortar for connecting the blocks for the fire wall, even an unskilled person can perform the work extremely simply, reliably and quickly. (B) The blocks vertically and horizontally adjacent to each other are integrated by the engaging force of the engaging member with an engaging strength not inferior to that of the conventional bonding mortar. (C) Therefore, even when heavy rain or an earthquake occurs, there is almost no danger that a strong lateral pressure will be applied to the joint wall or the joint wall will sway and the joint wall will collapse even if it is not reinforced with a reinforcing bar. (D) The blocks that make up the bun wall are stacked with their positions slightly shifted in the front-rear direction, so that the front of the bun wall is not a flat, flat surface but a decorative change. It can be formed on a rich uneven surface.

[Brief description of the drawings]

FIG. 1 is a sketch drawing of a construction structure of a wall, showing an embodiment of the present invention.

FIG. 2 is a perspective view of the same block.

FIG. 3 is a partial perspective view of an engaging member according to the first embodiment;

FIG. 4 is a perspective view showing a lower block.

FIG. 5 is a perspective view showing a corner block.

FIG. 6 is a sketch drawing showing a stacking structure of corner blocks.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 block 1A Block for uppermost stage 1B Block for lower stage 1C Block for corner 1a Upper surface 1b Lower surface 1c Depression 2a, 2b Engagement groove 3 Engagement member 4 Mortar filling hole A Enclosed wall B, C Ground D Concrete foundation E Steel F Mortar

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 60-130843 (JP, U) Japanese Utility Model Showa 54-51408 (JP, U) Japanese Patent Publication No. 44-15980 (JP, B1) Japanese Utility Model Sho 39- 1561 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) E02D 29/02 304

Claims (5)

(57) [Claims] 1. A block 1 in which a plurality of engagement grooves 2a and 2b are provided in parallel on a top surface 1a and a bottom surface 1b at predetermined intervals in a front-rear direction, respectively. The right and left adjacent blocks 1 are stacked while being appropriately shifted in the front-rear direction, and any one of a plurality of engagement grooves on the contact surface of the vertically adjacent blocks 1 and 1 is provided. Engagement grooves 2a, 2
b. A method for constructing a retaining wall, characterized in that the blocks 1 are positioned and engaged with each other by facing each other, straddling the two grooves, and inserting the engaging member 3. 2. A method for constructing a retaining wall according to claim 1, wherein a plurality of engaging grooves 2a and 2b are formed on an upper surface 1a and a lower surface 1b of the retaining wall at predetermined intervals in the front-rear direction. Block for retaining wall consisting of blocks 1 provided in parallel. 3. A plurality of engagement grooves 2a and 2b respectively formed on contact surfaces of the blocks 1 and 1 vertically adjacent to each other and straddle between any one pair of engagement grooves 2a and 2b. The retaining wall block according to claim 2, further comprising an engaging member (3) to be inserted by being stretched. 4. The engagement groove according to claim 3, wherein said engaging grooves have a substantially L-shaped cross section, and said engaging member has a substantially U-shaped cross section. Wall block. 5. The retaining wall block according to claim 2, wherein a mortar filling hole 4 is provided vertically on one side of the block 1 in the longitudinal direction.