JPS62291331A - Breaking preventive work for slope - Google Patents

Abstract

PURPOSE:To protect the whole area of slope uniformly and strongly by a method in which L-shaped frames with many through holes are set in a lattice form, net is laid on the frames by loosening most of its central parts, and cement mortar, etc., is packed into the net. CONSTITUTION:A slope breaking preventing framework 1 is set on a given place of slope E by turning its supporting pieces 3 toward the mountain side, and frames 6 and 7 are vertically set in a mutually facing manner on both sides of the framework 1. The formwork 1, the frames 6, 7 are connected into a cross shape by connectors to fix the whole area of the slope E in a lattice form. A net 8 whose central part is mostly loosened is laid over all upsides of the formwork 1 and the frames 6, 7 and a filler 9 is sprayed onto the slope E, where the net 8 as a core material is hardened when the filler 9 hardens between the formwork 1 and the frames 6, 7. The slope can thus be exactly fortified by the simple method.

Description

[Detailed description of the invention] 3. Detailed description of the invention (Industrial application field) The present invention relates to a construction method for preventing slope collapse.

(Prior art) Conventionally, in order to prevent slopes formed by railways, railways, roads, embankments, land reclamation, etc. from foundation wrinkling due to rainwater or collapse due to earth and sand runoff, Grass was planted to prevent the slope from collapsing, and to make it even stronger, the slope was covered with frame materials and a filling material such as mortar was sprayed between the individual frame materials.

(Problems to be solved by the invention) Conventionally, as described above, the former has a high risk of the slope collapsing due to rainwater and earth and sand, while the latter requires filling with mortar etc. sprayed between the individual frame members. The problem has been that the filling material such as mortar is sprayed between the frame material and other adjacent frame materials to different degrees and is uneven, making it impossible to adequately protect the slope.

(Technical Problem of the Invention) In view of these drawbacks, the present invention provides a 5S process;
The purpose is to uniformly and strongly protect the entire slope area to be protected.

(Means for Solving the Problems) The present invention comprises an elongated, substantially rectangular main body, and a supporting piece provided on one side of the main body in a direction perpendicular to the main body. A large number of frame members each having a cross section with a large number of through holes provided at intervals of A net is laid on top of the net, most of the center of the net on each rectangular frame member is loosened, and a filling material such as mortar or soil is filled over the net onto the slope. It is something.

(Operation of the invention) When protecting a slope with the slope collapse prevention frame material according to the present invention, a first frame member is placed at a predetermined position on the slope in a lateral direction, and the first frame member is A second frame member oriented vertically is arranged in a T-shape in the center, and a third frame member oriented vertically is placed on the side facing the second frame member with the first frame member in between. They are arranged in a T-shape, each frame member is connected with a connector such as a joint, and combined in a cross shape, and this is repeated to identify the frame members in a grid pattern over the entire slope to be protected.

Next, a net is laid on the grid-like frame material, and
Most of the center of the net on each rectangular frame material is left slightly slack.

Next, a filling material such as mortar or soil is sprayed onto the slope from the top of the net, and is filled between the frame members.

At this time, since the main body of the frame material is provided with through holes, the filling material such as mortar or soil sprayed between each frame material does not cure individually between each frame material, but between all the frame materials. Because it flows and cures, it uniformly protects the entire slope that needs to be protected.

(Example) Embodiments of the present invention will be described based on the drawings.

As shown in FIGS. 1 to 3, the present invention has the following configuration.

As shown in FIG. 1, the slope collapse prevention frame material 1 according to the present invention has a main body 2 made of elongated, substantially rectangular shape made of metal, and a support piece 3 extending along the entire length thereof in a direction perpendicular to the main body 2. The main body 2 is provided horizontally and has a cross-sectional shape, with a large number of triangular through holes 5 provided on almost the entire surface of the main body 2.

In addition, 4 in the figure is a joint connection hole.

When protecting the slope E with this slope collapse prevention frame material 1, as shown in FIG.
A frame member 1 is arranged with the support piece 3 facing toward the mountain side of the slope E (upper side in the drawing), and another frame member 6 is arranged in a T-shape in the center of this frame member 1 with the support piece 3 facing in the vertical direction. Arrange the frame members 7 facing the frame member 6 in a T-shape, sandwiching the frame members 1, and connect each frame member 1°6 and 7 with a connecting device such as a join 1- (as shown in the diagram).
The frame members 1.6 and 7 are connected in a lattice pattern over the entire slope E to be protected by repeating this process. At this time, in order to prevent the cruciate shape from collapsing, stakes 10 are driven into the corners of the frame members 1, 6, and 7 that intersect at right angles.

Next, the net 8 is laid over the entire upper part of the frame members 1.6 and 7, and most of the center part of the net 8 on each of the rectangular frame members 1.6 and 7 is loosened.

This net 8 diffuses the filler 9 when it is sprayed onto the slope E, and the filler 9 spreads over the frame material 1. 6 and 7
It becomes the core material when hardening within the gap.

Next, mortar, which is a filler material 9, is sprayed onto the slope E from outside the net 8, and is filled between the frame members 1, 6, and 7.

At this time, since the through holes 5 are provided in each frame material 1.6 and 7, the filler 9 is sprayed between each frame material 1.6 and 7.
is not cured individually between each frame material 1, 6, and 7, but flows and cures between all frame materials 1, 6, and 7, so that the entire slope E to be protected is uniformly protected.

Although mortar is used as the filler 9 in this embodiment, it may also be earth or the like.

(Effects of the Invention) According to the slope collapse prevention construction method according to the present invention, since the frame materials having a cross-sectional shape and having through holes in the supporting pieces are arranged in a lattice shape, each square frame The filling material such as mortar or soil filled between the materials does not cure and harden between each frame material individually, but flows between all the frame materials and hardens, so the entire slope to be protected is uniformly covered. can be protected.

In addition, since the net is laid on the frame material and most of the center of the net on each rectangular frame material is loosened, when filler material such as mortar or earth is filled from the outside, the filler material will not spread. Also, when the filler cures and hardens, the net acts as a core material, so the entire slope to be protected can be uniformly and strongly protected.

Therefore, the slope surface can be reliably and firmly protected by the tube-easy process, which is very convenient.

[Brief explanation of drawings]

Figure 1 is a perspective view of the slope collapse prevention frame material according to the present invention, Figure 2 is a perspective view of the slope collapse prevention frame material according to the present invention;
The figure is a cross-sectional view of the construction on a slope, and FIG. 3 is a plan view of the same. (Explanation of symbols of main parts) 1, 6.7...Frame material 2...Main body 3...Support piece 5...Through hole 8... ... Net 9 ... Filler E ... Slope

Claims (1)

[Claims] A cross section L consisting of an elongated, substantially rectangular main body and a support piece provided perpendicularly to the main body on one side in the longitudinal direction of the main body, with a large number of through holes provided at regular intervals in the main body. A large number of letter-shaped frame materials are provided, and the supporting pieces of these frame materials are arranged in a lattice pattern facing toward the mountain side of the slope.A net is laid on the lattice-shaped frame materials, and each rectangular frame material is A slope collapse prevention construction method characterized by loosening most of the center of the upper net and then filling the slope with filler such as mortar or soil.