JPS5929735B2 - Slope surface lath spacer ring - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a slope lath spacer ring that is attached to lath, which is the core material of mortar or concrete, in slope reinforcement work by spraying mortar or concrete. It is fixed in a state where it floats to a certain size above the slope.

Unlike other concrete works, slope reinforcement work does not require formwork and the reinforcing materials such as mortar and concrete are poured directly according to the unevenness of the terrain, so the lath used as the core material for slope reinforcement work is made of glue. When spraying mortar or concrete on such slopes, the material approaches the slope at the protruding corners of the slope, rises more than necessary at the concave portions of the slope, and buries into the soil where the slope is soft. However, the concave portions of the slope are thick, the reinforcing layer is thin at the protruding corners, the reinforcing layer is thin, the slope surface reinforcing material peels off, cracks, etc. occur, and the finish and appearance are poor.

In order to improve these defects, methods have been used, such as driving nails to hold the lath into the slope surface and tying the lath to the nails with thin hammers, or placing pieces of concrete, pebbles, etc. under the lath. However, this conventional method requires a large number of man-hours to perform the work, and the worker's weight may be applied to the lath in places where the slope is extremely uneven or steeply sloped.
It was difficult to attach the lath to a certain height from the slope.

The present invention significantly improves the drawbacks of the conventional method described above, and it lies in providing the above-mentioned slope lath spacer ring. Explain in detail.

As is clear from FIG. 1, this spacer ring has a cylindrical height h that is approximately equal to the thickness of the sprayed mortar, concrete, etc. A lath insertion notch 2 is provided from the bottom to the required height, usually about 1/2 of the height, and the tip is cut out almost horizontally on the bottom of the ring to form a lath holding groove 3 to narrow the end. A recess 9 is provided.

This lath introduction notch groove 2 may extend diagonally from the bottom as shown in FIG. 1, or may extend straight upward to form an inverted or T-shaped shape together with the lath holding groove. .

A required number of grounding plates 4 are fixed to the bottom of the spacer ring 1 in order to assist in the installation of the ring 1 and to prevent the ring 1 from being buried underground. Granular protrusions 10 are arranged to promote this.

The ring wall may also have a number of holes instead of the granular protrusions 10.

The slope reinforcement work using the spacer ring 1 of the present invention will be explained with reference to FIG. 2. The spacer ring 1 of the present invention is placed near the intersection of the laths 6 stretched on the slope surface 5,
By rotating the ring 1, one end of the wire forming the lath 6 is introduced and fitted into the lath fitting recess 9 of the lath holding groove 3 from the lath introduction notch groove 2 extending like the needle, so that it cannot be rotated, The ring 1 is fixed by driving a hook-shaped nail 7 into the slope 5 from inside the ring 1.

By doing this, the lath 6 is mounted in a state where it is raised by a certain amount from the slope surface, that is, parallel to the slope surface 5 along the unevenness of the slope surface 5.

The slope is then reinforced by spraying mortar or concrete.

By adjusting the height of the ring 1 to match the thickness of the sprayed mortar, etc., the thickness of the sprayed mortar can be reliably controlled, so that a layer of constant thickness is always formed.

In addition, in spacer rings, lath 6 is used as the core material.
Since the lath is introduced and fitted into the lath fitting recess 9 located at the end of the lath holding groove 3 of the link 1, the lath does not fall off.

Furthermore, since the lath after spraying the reinforcing material is fixed and buried at a fixed position in the sprayed layer, there are excellent effects such as there is no fear that the mortar or concrete of the slope reinforcing material will slip off.

The height and diameter of the ring 1, the position and number of the lath holding grooves in the lath fitting recess 9, etc. may be appropriately determined depending on the thickness of the reinforcing layer, the lath attachment position, etc.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the slope surface lath spacer ring of the present invention, and FIG. 2 is an example of slope surface reinforcement work using this spacer ring. 1... Ring, 2... Lath introduction notch groove, 3... Lath holding groove, 4... Grounding plate, 5... Slope, 6...Last, 7...
...Nail, 8...Reinforcement layer, 9...
Lath fitting recess, 10... granular protrusions.

Claims (1)

[Scope of Claims] 1 Following the lath introduction notch groove and groove cut upward from the bottom of the ring wall of the band-shaped ring, the groove is cut out approximately parallel to the ring bottom surface, and the end thereof is a lath insertion recess. What is claimed is: 1. A slope lath spacer ring having a plurality of lath holding grooves with a flat surface, and a required number of grounding plates on the bottom surface of the ring. 2. The groove surface lath spacer ring according to claim 1, wherein a large number of granular protrusions are arranged on the ring wall of the belt-shaped ring.