JP2000054344A - Structure for face of slope and revetment retaining wall and construction method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a face of slope and a structure for revetment retaining wall of ecological harmony type and their construction method which is capable of efficiently forming the face of slope and revetment retaining wall and giving a rain water draining function and a greening function to the retaining wall. SOLUTION: A footing portion 1 has a columnar shape, one of its both ends is projected out in one direction to 4 directions orthogonally relative to the columnar shape, the other is projected out in 3 directions on an orthogonal surface relative to the length direction of the columnar shape, one of them is a face of slope and a structure for revetment retaining wall consisting of a level difference larger than the thickness of adjacent projected portions 2, 3, 4. In this case, surfaces projected out in 3 directions of a structure is set as a front, and the structure is built up in parallel crosses and its cavity space is filled up with stone, sandbags, vegetation bags and other various greening materials.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope and revetment retaining wall structure used for preventing and preventing collapse and erosion of slopes, river banks and shores, etc. About

[0002]

2. Description of the Related Art Collapse, erosion, and the like of slopes, river banks, and coasts are caused by the causes of collapse of terrain, geology, rainfall, groundwater, vegetation, and the like. Construction methods such as greening are also diverse.

[0003] In carrying out the method, it is necessary to clarify the mechanism of collapse by conducting sufficient field surveys, to study the safety and economy of the method, and to select an optimum method. As such methods, the slope protection method includes vegetation method (vegetation mat method, seed spraying method, vegetation bag method, etc.), mortar spraying method, concrete spraying method, concrete block frame method, slope serpentine method, masonry method, There is a concrete upholstery method. The retaining wall method includes a stone retaining wall method, a block retaining wall method, a gravity retaining wall method, a leaning retaining wall method, a cantilever retaining wall method, and a retaining wall method.

[0004]

The problem to be solved by the present inventor relates to a structure used for a slope, a seawall and the like, and a construction method thereof.

[0005] In the construction of slopes and seawalls, foundation work is first carried out, but in the usual construction work such as concrete and mortar spraying methods, the foundation work is carried out after the foundation structure is dried and hardened. Because it is a method of forming surfaces and retaining walls, it is easily affected by weather conditions, it takes a long time to complete the construction, it can not respond quickly to disaster recovery work, etc., spraying method of concrete, mortar, etc. and each method Since the construction of the foundation and the like requires water, the water must be transported to the construction site in an area where it is difficult to secure the required water, resulting in high construction costs.

Further, in the case of the conventional slope and revetment retaining wall construction method, it is impossible to plant and plant greenery because rainwater does not penetrate. In addition, it has provided an environment that is not necessarily favorable for natural landscapes and habitats such as fish and shellfish and living things.

[0007] On the other hand, as a method of vegetation, a concrete block frame method, a knitting fence method, a slope serpentine cage method, an empty stone masonry method, etc., as a method of rainwater permeation and greening, all methods are relatively collapsed. It is actually used only for difficult, shallow cuts and embankments.

[0008] In the case of further greening by the conventional slope protection method, the existing method frame is partially collapsed, the surface is sprayed with a thick layer base material, or greening in the frame is limited. Not only is it troublesome, it is not only difficult to create the original forest, but it is also difficult to achieve the desired greening due to high temperature and drying damage.

[0009]

The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, the following structures for slopes and seawalls and novel structures using the same have been described. The present inventors have found a construction method and have reached the present invention.

That is, the present invention is an improvement of the conventional slope and revetment retaining wall construction work, and does not require foundation work using concrete, split stone, crushed stone, etc., and does not use construction water. Is the law. Furthermore, the slopes and revetment retaining walls after construction have a drainage function and have high resistance to earth pressure, so that they can be used for deep cuts and embankments. Further, the present invention provides an excellent construction method capable of greening by applying a vegetation construction method to a slope and a seawall.

Hereinafter, the present invention will be described in detail. In order to achieve the above object, the structure of the present invention is used as follows when used on a slope, a river bank, and a coastal retaining wall. There are various types of foundation work that can be considered depending on the soil properties. However, floor moating is performed up to the hard ground, compaction is performed using compaction machines, etc., or structures are installed directly without such construction.

Next, the structure of the present invention is assembled in a cross-girder shape, and in parallel, stone materials, sandbags, vegetation bags and the like are used alone or in combination with each other, and sandbags are used for backfilling. Stones, soils, etc. are used alone or in combination to form slopes and seawalls.

Further, when the greening is carried out after the slope and the seawall retaining wall are applied by the method of the present invention, various construction methods are conceivable, but after the slope and the seawall retaining wall are formed, the seed dispersing method, the soil spraying method, The vegetation method, such as the planting method, and the method of installing vegetation bags at the time of forming slopes and seawalls are applied.

Further, an example of the structure of the present invention will be described in detail with reference to FIG. The structure of the present invention comprises a columnar portion 1 having a base portion, one of both ends of which is formed in a columnar portion 2 protruding in two directions at right angles to the columnar portion 1, and the other side of the columnar portion 1. A projecting part 3, a projecting part 4, and a projecting part 5 in three directions on a right angle plane, and one of them (projecting part 3) is a slope face and a seawall retaining wall having a level difference greater than the thickness of an adjacent projecting part. Structure.

In the method for forming a slope and a retaining wall using the structure of the present invention, the surface protruding in three directions of the structure is turned upside down, and stone, sandbags and vegetation bags are formed in the cavity of the structure while being assembled in a cross-girder shape. Slope filling and revetment retaining wall construction method. That is, the structure is assembled by utilizing that one of the three projections of the structure is uneven. First, assemble so that one or two of the three-way protrusions of the structure intersect with the adjacent structure protrusions in the horizontal direction, and in parallel with this, stone, sandbags, vegetation bags, etc. One or a combination of these are piled up, and further sandbags,
Stone material, soil, etc., are filled alone or in combination. In the vertical direction, it is a method of stacking by repeating the assembly in the horizontal direction.

More specifically, referring to FIG. 2, in the first-stage assembly of a structure (first stage: I, II, III, second stage: IV, V, VI), first, I is installed and II- 3 projections are I-5
II, and III-3
The projection of (2) crosses behind the projection of II-5. After the first stage installation, stone, sandbag, vegetation bag, etc. on the surface layer, and the backing part,
Sandbags, stone materials, soil, etc. are filled, and the second stage is installed in the same manner as the first stage.

Since one of the projecting portions of the structure is different from the other structure, the structures are entangled in a cross-girder shape, thereby increasing the resistance to earth pressure. In addition, since the structure corresponding to the backfilling portion has the protrusion 2, by filling the voids of the structure with stone, sandbags, vegetation bags, soil, and the like,
It is possible to form an integral, hard to collapse and strong retaining wall. Further, when the slope and the retaining wall are formed on both surfaces, or when a stronger slope and the retaining wall are formed, the projection 2 of the structure and the projection 2 of the other structure are entangled and installed. When forming slopes and retaining walls on both sides, fill the surface layer with stone, sandbags, vegetation bags, etc., and fill the backfill with stone sandbags, etc., and assemble. In the case of, the surface layer is filled with stone, sandbags, vegetation bags, and the like, and the backfill is filled with stone, sandbags, and the like, and assembled.

When the slope and the retaining wall are formed with the structure of the present invention, the method of installing the structure is basically such that the projection 3 projects from a position lower than the projections 4 and 5. It is preferable to assemble such that adjacent structures are entangled with each other by using the fact that it is difficult to move by itself, but there is no particular limitation.

The slope of the slope and the slope of the retaining wall can be freely adjusted by changing the lengths of the basic columnar portion 1 and the projections 3, 4, and 5 of the structure. Also,
The length, thickness and quantity used of each part of the structure are not particularly limited, but it is necessary to consider strength and economy.

With regard to the columnar structure of the present invention,
It may have a columnar shape or a combination thereof, but preferably has a prismatic shape. The material of the structure may be concrete, reinforced concrete, mortar, stone, steel, FRP, etc., but concrete or reinforced concrete is preferable.

Further, in the structure of the structure, the projecting positions of the three protrusions extending in three directions perpendicular to the base columnar portion are as follows: two are at the tip of the base columnar portion, or slightly lower from the tip. In any position. The other one is preferably protruded from a position equal to or less than the thickness of at least two protruding portions, but is not particularly limited.

The angle of the projections projecting in three directions is preferably 90 degrees with respect to the basic columnar portion, but is not particularly limited. Further, the projections are preferably at an equal angle (120 degrees), but are not particularly limited.

Next, the angle of the projections extending in one or four directions on the opposite side to the projections projecting in three directions is preferably 90 degrees with respect to the basic columnar portion, but is not particularly limited. is not. Further, the projections are preferably at equal angles, but are not particularly limited. Also, the length of the projections is sufficient if they are entangled with each other, and is not particularly limited. However, it is not economical if it is too long. Further, the number of projections is not particularly limited, but it is preferable that the projections be made in two directions in consideration of the ease of entanglement of the same portion of the structure.

The surface of the slope section and the seawall retaining wall section constructed in this way can be appropriately replenished with moisture from the inside, and can expose a soil base for vegetation. That is, greening can be performed simultaneously with protection of the wall surface. As for the method of greening, most of the construction methods which are usually performed at present can be applied. For example, seed spraying method,
Any of the soil spraying method, upholstering method, vegetation bag method, planting method and vegetation mat method may be used.

[0025]

Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to these embodiments.

Embodiment FIG. 1 shows an example of a structure of the present invention made of a concrete block. Basic columnar part 1 (120 × 120 × 12
00 mm) to the protrusion 3 (120 × 120 × 800 m)
m), the projection 4 (120 × 120 × 800 mm), and the projection 5 (120 × 120 × 800 mm) extend in the perpendicular direction. The inner protruding portion 3 protrudes from a position lowered by an amount corresponding to the thickness of the protruding portions 4 and 5. Projection 2 (1
20 × 120 × 520 mm) project in two directions.

First, concrete blocks I, II, and III having the shape and size shown in FIG. 1 were installed, the voids and the like were filled with soil, and the surface layer of the slope was filled with natural stone. afterwards,
Concrete blocks IV, V, VI are installed with I, II, III rotated 180 degrees around the columnar part.Soil is filled in voids, etc., and natural stone is filled in the surface layer of the slope. The stacking slope was completed in the same manner.

FIG. 2 is a perspective view showing an installation state of only the concrete block shown in FIG. The projections of I-5 and II-3 of the concrete block intersect, and I-5
The projection was set in front. The projection of II-5 crossed the projection of III-3, and the projection of II-5 was placed in front. The projection of IV-4
The projection of IV-3 is placed behind the projection of V-4, and the projection of V-4 is placed behind the projection of II-4.
The projection of -3 was set behind the projection of VI-4. The projection of VI-4 is installed behind the projection of IV-4.

FIG. 3 is a perspective view of a concrete block in the middle of assembling, in which the concrete block voids and the like are filled with soil and the slope surface layer is filled with natural stone. FIG. 4 is a perspective view showing the completion of construction, showing a concrete block, natural stone and soil forming a slope.

[0030]

As described above, by using the structure of the present invention, the conventional foundation work is not required, the structure is entangled, and stones, sandbags, vegetation bags, etc.
A method that mixes soil, etc., can maintain rainwater drainage functions and provide high-strength slopes and revetment retaining walls, preventing slopes, river banks and coasts from collapsing, eroding, etc., and repairing them quickly after collapsing, eroding, etc. It is suitable for.

[Brief description of the drawings]

1A and 1B show a form of a structure according to an embodiment of the present invention, wherein FIG. 1A is a front view, FIG. 1B is a side view, and FIG.
Is a perspective view.

FIG. 2 is a perspective view showing an installation form of a structure according to an embodiment of the present invention.

FIG. 3 is a perspective view in the middle of construction, which is one embodiment of the present invention.

FIG. 4 is a perspective view showing a completed construction according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Basic pillar part of a structure 2 Columnar protrusion part of a structure 3 Columnar protrusion part of a structure 4 Columnar protrusion part of a structure 5 Columnar protrusion part of a structure 6 Natural stone

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuo Yamamoto 4646-1 Higashikinami, Ube-shi, Yamaguchi Prefecture Inside the Central Service Co., Ltd. (72) Inventor Yasuji Yasuji 4646-1 Higashikinami, Ube-shi, Yamaguchi Pref. Company Central Service F-term (reference) 2D018 DA00 DA06 2D044 DB41

Claims (2)

[Claims] 1. A base having a columnar shape, one end of which has a structure projecting in one or four directions at right angles to the columnar shape, and the other end having a right-angled surface with respect to the lengthwise direction of the columnar shape. A structure for slopes and revetment retaining walls in which one of the connecting parts between the three-directionally protruding structure and the columnar foundation is different from the other two. object. 2. The structure according to claim 1, wherein the surface protruding in three directions is a surface layer, and the structures of the adjacent structures are entangled with each other in a girder shape while being entangled. A construction method that forms a slope and a seawall by filling it alone or a combination of these.