JPS6225619A - Slope protection frame - Google Patents

Abstract

PURPOSE:To make transportation and handling operations easier by enabling frame materials to be folded by a method in which both ends of plural netted plates having a flexibility are butted, and pins are inserted into the butted portions to connect them rotatably to form a frame material. CONSTITUTION:Both ends of side net lines 12 constituting a netted plate 11 are bent to form connecting holes 14. Both ends of the plates 11 are butted, and connecting pins 2 are inserted into the holes 14 to connect the plates 11 to form a slope protection frame 1. In the construction work, the frame 1 is folded and transported to a construction site, and the frame 1 is then unfolded to build up a square framework.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a slope protection frame that is lightweight and easy to construct.

[Prior Art] Various legal frameworks are used for the purpose of preventing collapse of natural slopes and cut surfaces and beautifying the environment.

For example, there is a slope protection technique in which a large number of long reinforcing bars are arranged on a slope to form a grid-like framework, and then concrete or the like is sprayed onto the reinforcing bars to construct a rigid slope framework.

[Problems to be solved by the present invention l The following problems remain in the above-mentioned conventional slope protection techniques.

(1) Conventional legal frameworks require a leveling process if there are irregularities on the slope.

However, leveling work on slopes is extremely difficult. .

(2) The reinforcing bars that frame the slopes are manually transported up and down the slopes many times by workers.

Therefore, the transportation of reinforcing bars accounts for a large proportion of the overall cost of construction work.

In particular, when the slope has a large inclination angle or when constructing a large slope, the amount of labor and expense required for transporting reinforcing bars becomes extremely large.

[Object of the present invention] The present invention was made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a slope protection frame that is convenient to transport and handle and can be quickly assembled. With the goal.

[Example] Hereinafter, an example of the slope protection frame will be described with reference to the drawings.

(B) Structure of slope protection frame (Fig. 1) The slope protection frame 1 uses flexible steel plates 11 formed by vertically and horizontally intersecting structural steel 11A12 and vertical W4 lines 13,
It is a rectangular frame formed in a foldable manner by butting both ends of each rope plate 11.

The slope protection frame 1 is flexible only in the direction of the vertical steel wire 13.

(b) Connection structure of steel plates (Fig. 1.3) Both ends of the horizontal steel wire 12 constituting the steel plate 11 are bent to form a connecting hole 14.

Both ends of each rope plate 11 are slightly inserted, and connecting pins 2 are inserted into a group of 14 connecting holes arranged in a vertical line to connect the matched rope plates 11, respectively.

When the slope protection frame 1 is manufactured using commercially available netting material, the work is as simple as bending a part of the netting material.
Easy to manufacture.

(c) Reinforcement material The strength of the slope protection frame 1 can be improved by the following reinforcement method.

That is, this is a method of reinforcing the foldable slope protection frame 1 by attaching reinforcing members 3 to the corners of the slope protection frame 1 when it is unfolded.

This reinforcing material 3 is composed of a rope plate similar to that of the slope protection frame 1.

The reinforcing material 3 can be attached by, for example, protruding both ends of the reinforcing material 3 outwards as shown in FIG.
form 1.

Then, the reinforcing material 3 is placed inscribed in the corner of the slope protection frame 1, and the locking portion 3 is inserted from the gap between the two rope plates 11 forming the corner.
Make 1 stand out.

The locking pin 4 is inserted into the locking portion 31 projecting outward from the rope plate 11.

As a result, even if a force that tries to spread outward acts on the rope plate 11, that force is transmitted through the stop pin 4 and the reinforcing member 3 and is supported by the other rope plates 11.

Next, we will explain how to protect the slope.

(1) Transporting the slope protection frame: The slope protection frame 1 having the above-mentioned structure, manufactured in large quantities at an assembly factory, etc., is transported to the site in a folded state.

Next, transport the slope protection frame 1 in a folded state on the slope M that requires protection. When the slope protection frame 1 is folded, it becomes compact and easy to transport, as shown by the dashed line in Figure 2. In addition to being a single plate, 1
Since the slope protection frame 1 is relatively lightweight, it is easy for a worker to climb up and down the slope M and carry it.

Next, the folded slope protection frame 1 is unfolded and assembled into a rectangular frame.

(2) Laying of slope protection frames The assembled slope protection frames 1 are installed in such a manner that the assembled rope plates 11 are at least facing each other as shown in FIG.
They are located in a direction perpendicular to the direction of inclination of the slope protection frames 1, and are laid in a square shape with a predetermined opposing distance between the rope plates 11 of the adjacent slope protection frames 1.

The facing distance of each rope plate 11 is determined by taking into account the slope of the slope M, the geology, etc.

Even if the slope M is somewhat uneven, it can be sufficiently followed by the flexibility of the slope protection frame 1, so there is no need for special leveling work of the slope M.

(3) Spraying of concrete, etc. Next, low slump mortar, concrete C, etc. are sprayed toward both of the opposing rope plates 11 to form a rigid legal frame 5.

The slope protection frame 1 is buried in mortar or concrete C and exhibits a reinforcing function for the slope frame 5.

As described above, the slope 5 is built up from the slope M in a grid pattern.

(4) Stabilizing the slope surface by filling the depression surrounded by the soil method frame 5 with earth and sand 6, cobblestones, etc., or by sowing seeds or turfing is the same as before.

[Other Examples] In the above embodiment, the slope protection frame 5 is constructed in a direction perpendicular to a direction parallel to the slope direction of the slope, but each slope protection frame 1 is arranged diagonally to form a diamond shape. It is also possible to construct

It is also conceivable to construct a grid by combining the squares of the above embodiment and the diamonds of this embodiment.

In any of the cases described above, the rope plates 11 of each slope protection frame 1 are laid at a constant distance from each other, as in the previous embodiment.

[Effects] Since the present invention is as explained above, the following effects can be expected.

(a) The slope protection frame is made of lightweight steel plates and is foldable, making it extremely easy to transport large quantities from the factory to the site and individually to the slope at the site.

In particular, until now, the work of transporting long reinforcing bars to the slope was considered to be the most labor-intensive work in slope construction, but by using the slope protection frame of the present invention, the work of transporting the long reinforcing bars to the slope has become easier. This can significantly reduce the effort required.

(b) Since the slope protection frame is constructed in a foldable manner, assembly of the slope protection frame on site is as simple as simply unfolding the slope protection frame.

Therefore, the slope protection frame can be assembled quickly.

(c) Depending on the slope condition and geology of the slope, a suitable installation form of the slope protection frame can be freely selected, such as a square or diamond shape.

(d) Conventionally, long reinforcing bars were used to assemble slope protection frames on slopes.

As a result, the dimensional standards for each slope protection frame constructed on site were inaccurate.

On the other hand, since the slope protection frames according to the present invention are manufactured one by one with high precision in a factory or the like, the dimensions of the slope protection frames when scattered are accurate.

Therefore, in addition to ensuring the strength of the legal frame as designed,
Since the frame is formed in an orderly manner, the appearance is also good.

[Brief explanation of the drawing]

Claims (1)

[Scope of Claims] A frame material is formed by abutting both ends of a plurality of flexible steel plates, and inserting pins or the like into the abutting points of each of the steel plates to connect them rotatably. A slope protection frame characterized by a foldable structure.