JPH0667535U - Slope protection structure for retaining wall - Google Patents

Abstract

(57) [Abstract] [Purpose] The purpose is to improve the durability of the retaining surface of the retaining wall, to improve the scenery, and to provide a retaining surface protection structure for the retaining wall that has good workability and economy. It is what [Construction] The geocell 1 comprises a plurality of strips 2 of high-density polyethylene that are welded at a predetermined interval by high frequency to form a honeycomb-shaped cell 3 during expansion. The cell 3 is filled with sand W and compacted. By doing the above, a rigid composite plate is constructed. FIG. 2 shows a cross-sectional view of the retaining wall 4 using the geocell 1, in which the sand W is filled inside the cells 3 of the plurality of layers of the geocell 1 and the slopes 5 are laminated at a constant gradient. Reference numeral 6 denotes a backfill material such as earth and sand buried on the back side of the retaining wall 4, and 7 denotes a drainage culvert. In this embodiment, a protective member 8 for protecting the surface 1a of the geocell 1 exposed on the sloped surface of the retaining wall 4 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a retaining surface protection structure for a retaining wall that uses geocell having honeycomb cells, which is a type of geotextile. More specifically, the durability of the retaining surface of the retaining wall is improved and the landscape is improved. This relates to the slope protection structure for retaining walls.

[0002]

[Prior art]

 Hitherto, Geocell, which is a kind of geotextile that forms a honeycomb-shaped cell when spread by high-frequency welding a strip of high-density polyethylene, has been known, and the ground of this geocell is filled with earth and sand. It is used as a reinforcement material, roadbed material, sidewalk foundation material, construction road, retaining wall, and other civil engineering-related foundation members.

By the way, in the case where the geocell is used as a gravity type or a leaning type retaining wall, the geocell having the inside of the cell filled with earth and sand is filled with earth and sand to a predetermined height and laminated in a plurality of layers.

[0004]

[Problems to be solved by the device]

 However, when the Geocell is used as a retaining wall, if the Geocell made of plastic material is damaged due to deterioration due to ultraviolet rays, etc., the filling soil will flow out and the slope will collapse, which is extremely dangerous. There was a problem that the soil could not flow out to secure the specified cross section, and the side of the Geocell was exposed on the slope of the retaining wall, so there was a problem that the landscape was poor.

The present invention was devised by focusing on such conventional problems, and improved the durability of the retaining surface of the retaining wall, improved the scenery, and improved the workability and economy. It is intended to provide a slope protection structure for a retaining wall.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the gist of the present invention is to provide a protective member for protecting the surface of the geocell exposed at the retaining surface of the retaining wall. As the protective member, vegetation covering the surface of the geocell in the cells of each exposed layer of the retaining wall, coating with a paint on the surface of the geocell exposed on the retaining surface of the retaining wall, and further coating of the retaining wall For example, spraying mortar on the surface of the geocell exposed on the surface.

[0007]

[Function of the device]

 This invention is configured as described above, and by providing a protective member that protects the surface of the geocell exposed on the retaining surface of the retaining wall, the durability of the retaining surface of the retaining wall is improved, the landscape is improved, and the construction is further improved. It is possible to improve the efficiency and economy.

[0008]

[Example of device]

 An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view of a geocell 1 used for a retaining wall of the present invention. The geocell 1 is a honeycomb-shaped cell when expanded by high-frequency welding a plurality of high-density polyethylene strip materials 2 at a predetermined interval. 3 is constructed, and by filling and compacting the soil W in the cell 3, a rigid composite plate is constructed.

FIG. 2 shows a cross-sectional view of the retaining wall 4 using the geocell 1, in which the cell 3 of the geocell 1 having a plurality of layers is filled with earth and sand W and the paste surface 5 is laminated at a constant gradient. . Reference numeral 6 indicates a backfill material such as earth and sand buried in the back side of the retaining wall 4, and reference numeral 7 indicates a drainage culvert. In this embodiment, a protective member 8 for protecting the surface 1a of the geocell 1 exposed on the sloped surface of the retaining wall 4 is provided.

That is, as an example of the protective member 8, the vegetation 9 covering the surface 1a of the geocell 1 is provided in the cell 1 of each layer where the retaining surface of the retaining wall is exposed, and the geocell exposed to the retaining surface of the retaining wall is provided. It is conceivable that the paint 10 is applied to the surface 1a of No. 1 and that the surface 1a of the geocell 1 exposed on the retaining surface of the retaining wall is sprayed with mortar (not shown). Instead, they can be used together.

The vegetation 9 as the protective member 8 is preferably a plant having a height such as a vine, a flower or a shrub, and particularly in the case of the vegetation 9, the earth and sand filled in the cell 3 of the geocell 1 is suitable. Since W can be used and the root functions as a reinforcing member, the durability of the retaining surface of the retaining wall can be improved, and the workability and economy are improved. Moreover, when the surface 1a of the geocell 1 is covered with vegetation 9 as well as paint or mortar as the protective member 8, the scenery is also good.

[0012]

[Effect of device]

 In this invention, since the protective member for protecting the surface of the geocell exposed on the retaining wall of the retaining wall is provided as described above, the durability of the retaining surface of the retaining wall can be improved and the scenery can be improved. It also has the effect of improving workability and economic efficiency.

[Brief description of drawings]

FIG. 1 is a perspective view of a geocell used in the retaining wall of the present invention.

FIG. 2 is a sectional view of a retaining wall using a geocell.

[Explanation of symbols]

1 Geocell 1a Geocell surface 3 Cell 4 Retaining wall 5 Glue surface 6 Backfilling material 7 Drainage culvert 8 Protective material 9 Vegetation W Sediment

Claims (4)

[Scope of utility model registration request] 1. In a retaining surface protection structure for a retaining wall constructed by laminating a plurality of layers of geocells filled with earth and sand in a honeycomb-shaped cell, a protective member for protecting the surface of the geocell exposed at the retaining surface of the retaining wall is provided. A retaining surface protection structure for retaining walls. 2. The retaining surface protection structure for a retaining wall according to claim 1, wherein, as the protective member, vegetation covering the surface of the geocell is performed in the cells of each layer where the retaining surface of the retaining wall is exposed. 3. The retaining surface protection structure for a retaining wall according to claim 1, wherein the surface of the geocell exposed on the retaining surface of the retaining wall is coated as the protective member. 4. The retaining surface protection structure for a retaining wall according to claim 1, wherein as the protection member, mortar is sprayed on the surface of the geocell exposed at the retaining surface of the retaining wall.