JPH11236712A - Foot protection of slope, foot protection pressure receiving plate and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability by embedding a pressure receiving leg on a stepped horizontal surface, and applying initial tension by fixing an anchoring member to the ground to the pressure receiving plate. SOLUTION: A horizontal surface 1 for sodding and a vertical cut slope 1' are formed in a stepped state on a slope E with a prescribed level difference. And then the reverses of concrete square pressure receiving plates 2 having reinforcing PC steel 13 and having a height nearly equal to the level difference, are arranged to come into contact with the plane 1', the concrete square pressure receiving plates 2 are erected on the plane 1 side by side, legs 7 are embedded in holes 5 on the plane 1, and the slope before cut is covered by embankment (e). And then after anchor holes reaching the ground through through holes 9 for anchoring the plates 2 are made, inclined downward almost horizontally, and anchoring members 10 are inserted from the holes 9 and a grouting material is injected and solidified, prestressed concrete is introduced into the anchoring members 10 and anchored in the holes 9. Thus the introduction of the prestressed concrete helps increase the strength of the pressure receiving plates and thereby reduce the weight, facilitating transport and installation, and controlling a stratiform landslide.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for fastening a slope and a pressure receiving plate and a pressure receiving device made of concrete for use in the method.

[0002]

2. Description of the Related Art According to Japanese Patent Publication No. 7-42708, a bottom wall placed on a horizontal surface for planting formed by cutting a slope is provided.
2. Description of the Related Art Concrete L-shaped self-supporting gluing blocks are known which consist of an integral vertical wall rising from a bottom wall and standing in front of the horizontal cut slope. Glue the blocks by arranging them in a row on the horizontal plane for planting, and connecting the anchor fixing holes in the vertical walls of each block with the anchor material that has been driven into the soil behind and fixed. Retaining walls can be built.

[0003]

However, since the bottom wall of the above-mentioned gluing block rests on a horizontal plane for planting,
The entire horizontal surface cannot be a planting surface, and the depth of the planting surface is smaller than the depth of the horizontal surface. Further, the weight of the bottom wall for self-supporting is increased, resulting in poor workability. Furthermore, it is necessary to cast concrete on the horizontal surface on which the bottom wall of the gluing block rests and provide a mounting table, which is troublesome. Furthermore,
When driving the anchor material to be connected to the vertical wall of each block into the soil behind, place a gantry on the lower horizontal plane, install an anchor driving machine on this gantry, and Drill anchor holes into the soil behind.
Therefore, the anchor and the anchor must be driven at regular intervals so as to exactly match the anchor fixing holes in the vertical wall of the block that is erected on the upper stage while moving the base and the anchor driving machine left and right on the horizontal plane of the lower stage. It requires precision, time and effort, and when arranging the blocks vertically on the upper horizontal surface, the end of the anchor that has already been driven into the soil behind the anchor hole in the vertical wall of the block The construction efficiency is poor because the blocks must be erected and lined up so as to enter.

In addition, since a cut slope is formed behind the horizontal plane, a wedge-shaped space is formed between the block and the vertical wall. For this reason, to apply prestress to the anchor, fill the wedge-shaped space with earth and sand and compact it, or place concrete in the lower half of the block height in the gap on the back of the block to increase the strength of the concrete and Prevent the falling of the block and prevent the block from shifting by inserting a wedge between the anchor and the anchor fixing hole in the vertical wall. It takes time and trouble.

[0005]

The gluing method according to claims 1, 2, 3, and 4 of the present invention has been developed to solve the above-mentioned problems. In the gluing method of the first aspect, a slope having a horizontal surface for planting and a cutting surface connected behind the horizontal surface is formed in a step shape by shaving the slope at a required step, and the cutting of each horizontal surface is performed. Drill holes at the required intervals left and right along the front of the soil surface.In each hole, insert a leg that is wide and has a height that is approximately the same as the above-mentioned step, and that hangs down from a large-sized pressure plate. A plurality of pressure receiving plates are placed side by side in a row on the horizontal surface while making general contact with the cut surface, and the anchor material is directed obliquely downward through the cut surface from the through holes for anchors previously established in each of the pressure receiving plates. And anchor the tip of the anchor material to the ground, prestress this anchor material And performing for each stage to fix the other end portion of the anchor member to anchor through hole of the pressure receiving plate. In the gluing method according to claim 2, the slope is shaved at a required step to form a step having a horizontal surface for planting and a stable inclined cutting surface connected to the rear of the horizontal surface in a stepped manner,
Holes are drilled at required intervals to the left and right along the front of the inclined cutting surface of each horizontal plane, and each of the holes is wide and the height is about the same as the above-mentioned step. A plurality of pressure receiving plates are inserted vertically into the horizontal plane adjacent to each other in a row on the horizontal plane, and the backing material with high compressive strength is inserted into the gap between the pressure receiving plate and the inclined cut surface. Filling and rolling to form a backfill reinforcement layer, and insert the anchor material obliquely downward through the backfill reinforcement layer and the inclined cut surface from the through hole for anchor previously established in each of the pressure receiving plates. It is characterized in that the front end of the material is fixed to the ground, prestress is applied to the anchor material, and the other end of the anchor material is fixed to the through hole for anchor of each pressure receiving plate for each step. .
According to a third aspect of the present invention, the step of forming a step having a horizontal surface for planting and a cutting surface connected to the rear of the horizontal surface is formed in a step-like manner by shaving the slope at a required step, and cutting each horizontal surface. Holes are drilled at required intervals to the left and right along the front of the soil surface, and a plurality of strips are inserted into each of the holes by inserting legs that are narrow and have a height that is approximately the same as the step above, and that hang from a strip-shaped pressure receiving plate. The pressure receiving plates are placed vertically on the horizontal surface while maintaining a constant adjacent spacing while making general contact with the cut surface, and the horizontal pressure receiving plates are engaged with the left and right rectangular pressure receiving plates at each adjacent spacing of the rectangular pressure receiving plates. To the height of the strip-shaped pressure receiving plate, insert the anchor obliquely downward through the cut surface from the through hole for the anchor previously established in the strip-shaped pressure receiving plate, and fix the tip of the anchor to the ground, A prestress is applied to this anchor material, and the other end of the anchor material is connected to each of the rectangular pressure receiving plates. That colonize the car through hole, and performing in each stage. In the gluing method according to claim 4, the slope is shaved at a required step to form a step having a horizontal surface for planting and a stable inclined cut surface connected behind the horizontal surface in a step-like manner. Holes are drilled at required intervals to the left and right along the front of the inclined cutting surface on the horizontal plane, and each hole is inserted with a leg that is hanging from a strip-shaped pressure plate with a narrow width and the same height as the above-mentioned step. A plurality of strip-shaped pressure receiving plates are vertically erected on the horizontal plane with a constant adjacent space on the left and right while engaging the horizontally long pressure-receiving plate with the left and right strip-shaped pressure receiving plates at each adjacent interval of the strip-shaped pressure receiving plates. Vertically stacked up to the height of the strip-shaped pressure receiving plate, filling the gap between the strip-shaped pressure-receiving plate, the horizontally long pressure-receiving plate and the inclined cut surface with a backfill material having a large compressive strength,
Rolling to form a backfill reinforcement layer, insert the anchor material obliquely downward through the backfill reinforcement layer and the inclined cut surface from the through hole for anchor previously established in the rectangular pressure receiving plate,
Fixing the tip of the anchor to the ground, prestressing the anchor and fixing the other end of the anchor to the through hole for anchor of each strip-shaped pressure receiving plate is performed for each step. Features.

According to a fifth aspect of the present invention, there is provided a pressure receiving plate
It is for use in the gluing method according to claim 2, wherein the slope is shaved at a required step to form a horizontal plane for planting, and a step-shaped step formed with a cut surface connected to the rear of the horizontal plane, A concrete glue-receiving pressure plate that is substantially in contact with the cut surface and is arranged side by side on the horizontal surface in a row on the left and right sides,
A wide, square, large plate that is about the same height as the step above,
It consists of legs that hang down from the lower end surface of this large plate and are buried in the ground in a horizontal plane. An anchor through-hole through which an anchor material can be inserted obliquely downward through the soil surface and an end of the anchor material can be fixed is provided. The gluing pressure receiving device according to claim 6 is used for the gluing method according to claim 3 or claim 4, wherein a cutting surface is cut at a required step to form a horizontal plane for planting and a cutting plane connected behind the horizontal plane. A concrete glue-receiving pressure plate device which is arranged in a row on the horizontal surface in front of the cut surface of each of the steps in the form of a step having a soil surface, the narrow width and the height having the height difference. With a strip plate of the same size as the above, and legs that hang down integrally from the lower end surface of this plate and are buried in the ground on a horizontal plane,
A strip-shaped pressure receiving plate that is arranged so that the strip plate body is substantially in contact with a cut surface and is arranged on a horizontal plane at a specific interval on the left and right sides, and at an interval adjacent to the strip-shaped pressure receiving plate, is stacked up to the height of the pressure receiving plate. It is composed of a horizontally long pressure receiving plate, and the strip plate of the strip-shaped pressure receiving plate is provided with an anchor through hole through which an anchor material can be inserted obliquely downward through a cut surface and an end of the anchor material can be fixed. In addition, the left and right side portions of the strip plate and the left and right side portions of the horizontally long pressure receiving plate opposed thereto are provided with uneven engagement portions.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a partially finished appearance of a slope to which the gluing method of claim 1 is applied. Reference numeral 1 denotes a step-like horizontal plane formed on a slope, and large-sized pressure receiving plates 2 are vertically arranged in contact with a vertical cut surface behind each horizontal plane 1. Each pressure receiving plate 2 is connected to the ground by an anchor made of PC steel installed diagonally downward, and 3 is a lid of an anchor fixing portion. Trees P are planted on each horizontal plane.

FIG. 2 is an explanatory view of each step of the gluing method according to claim 1. FIG. 2 (A) shows a first shelf-shaped horizontal surface 1 and a vertical cutting surface 1 'connected behind the first cutting surface 1' on the slope G, and grounding the horizontal surface 1 at a required interval before the cutting surface 1 '. The vertical holes 5 are sequentially drilled by the auger 6. The body (not shown) of the earth auger (drilling machine) 6 is small and lightweight, and can be used even if it is mounted on the narrow horizontal surface 1.

FIG. 2B shows a state in which the pressure receiving plates 2 are arranged in a line on the horizontal surface 1 made in FIG. 2A while making contact with the vertical cut surface 1 ′. The legs 7 hanging from the pressure receiving plate 2 are lined up one after another while being fitted into the holes 5.
Of the two pressure receiving plates are matched with each other. The leg 7 is a strong one that functions as a support, and is one in the figure, but may be plural. Although the shape and dimensions of the pressure receiving plate 2 will be described later, the pressure receiving plate 2 is made large enough to be lifted and hung by the wire rope 8 of a small crane (not shown). Reference numeral 9 denotes a through hole for an anchor provided in the pressure receiving plate.

FIG. 2 (C) shows that the drilling machine 11 is inserted into the soil through the anchor through hole 9 previously drilled in the pressure receiving plate 2, and the anchor hole reaching the ground from the cut surface 1 'is inclined downward almost horizontally. This shows a state in which holes are drilled one after another at a corner (around 10 °), and anchor members 10 of PC steel are inserted into the respective anchor holes. After the insertion of the anchor material, grout (mortar) is injected into the anchor hole, and after solidification, the anchor material is tensioned to apply prestress, and is fixed to the anchor through hole 9 of the pressure receiving plate 2. Thus, the pressure receiving plate 2 is fixed to the ground by the tensioned anchor member 10. Since the anchor connecting the ground and the pressure receiving plate and the method of construction are well known, the details are omitted.

FIG. 2D shows a state where the outer end of the anchor member 10 is fixed to the anchor through hole 9 of each pressure receiving plate 2 and the fixing portion is covered with the lid 3. The gap between the upper end of the rear surface of each pressure receiving plate 2 and the slope of the ground is flatly covered with the embankment e (see FIG. 3B).
This completes this stage and moves on to the next stage. If the slope is a natural slope, the steps of FIGS. 2 (A) to 2 (D) are repeated every time the horizontal plane 1 is created, one step from the bottom to the top. If the slope is a cut slope, the work procedure and safety can be improved by finishing one step from top to bottom. The step is adjusted to the height of the pressure receiving plate 2, but may be changed according to the situation.

When the soil of the ground is stable such as clayey soil, a vertical cut surface 1 'is provided behind the shelf-like horizontal surface 1 as shown in FIGS. 2 (A) and 2 (B). It can be formed and lined up in a row on the horizontal surface 1 while the pressure receiving plate 2 is in contact with the cutting surface 1 '. However, depending on the soil quality, the cutting is performed by inclining so as to form a stable slope to prevent collapse during construction. And pressure receiving plate 2
When the pressure receiving plate is placed adjacent to the horizontal surface 1 by dropping and fitting the leg 7 hanging from the hole 5 into the hole 5 dug in the horizontal surface 1 in front of the inclined cutting surface 1 ″, the rear surface of the pressure receiving plate 2 is inclined and cut. There may be a gap between the soil surface 1 "and the space below the anchor through hole 9 of the pressure receiving plate (see FIG. 12). At that time, after the pressure receiving plate 2 is vertically arranged, a backing material having a high compressive strength such as crusher sharan (cut crushed stone) used as a road base instead of mere earth and sand is provided in the gap about 2/3 of the height of the pressure receiving plate. Filling and rolling to form the backfill reinforcing layer C, thereby filling the voids with the backfill reinforcing layer, and inserting the drilling machine 11 from the anchor through hole 9 of the pressure receiving plate into the soil via the backfill reinforcing layer C. The anchor holes reaching the ground from the sloping cut surface 1 "are drilled one after another at a downward inclination angle (nearly 10 °) which is almost horizontal, and the anchor material 10 is formed in each of the anchor holes.
After the anchor material is inserted, grout (mortar) is injected into the anchor hole. After solidification, the anchor material is tensioned to apply prestress, and is fixed in the anchor through hole 9 of the pressure receiving plate 2. Thereby, the construction period can be shortened and the construction can be carried out economically as compared with the case where the voids are filled with concrete which has to wait for a long time until the strength is developed. An embankment e is placed on the backfill reinforcement layer C to close the gap between the upper end of the pressure receiving plate and the ground slope.

FIG. 3 shows a pressure receiving plate according to a fifth aspect, and the pressure receiving plate 2 shown in FIG. As shown in FIG.
A horizontal plane 1 for planting and a vertical cutting surface 1 'connected to the rear of the horizontal plane 1 are formed in steps so that the height of the cutting plane 1' is higher than the height of the steps. Although it is low, it is configured to be higher than the anchor through hole 9 of the pressure receiving plate 2 when the leg 7 is dropped into the vertical hole 5 and stands. The back surface is brought into contact with the cut surface 1 ′, and a concrete gluing pressure receiving plate 2 having a height substantially equal to the step is placed on the horizontal surface 1,
Stand side by side in a row to the left and right. As shown in FIG. 2, each pressure receiving plate 2 is arranged by dropping a leg 7 into a hole 5 previously provided on a horizontal surface 1 in front of a cutting surface 1 '.

FIGS. 3 and 4 show a state in which the concrete pressure receiving plate 2 of claim 5 is arranged upright. To illustrate the dimensions, the square plate is a square having a height and a width of 2 m both in width and a thickness of 300 mm at the center of the thickest lower end, and 100 mm at both ends of the thinnest upper end.
It is a cylinder of 600 mm in length, and the through hole 9 for anchor has a diameter of 9
6 mm. The chain line E in FIG. 3B is the slope before cutting, and e indicates embankment. Since the pressure receiving plate 2 has the legs 7 inserted into the ground and is in contact with the vertical cut surface 1 'behind, the anchoring material is stable even if the anchor material is tensioned and connected and fixed to the pressure receiving plate main body.

A broken line is shown on one pressure receiving plate 2 in FIG.
The reinforcing PC steel material 13 vertically and horizontally is shown. As shown in FIG. 5, each pressure receiving plate 2 has a square plate and braided reinforcing bars 14 inserted into the legs 7, and particularly, the connection with the legs 7 is strengthened. Accordingly, the anchor member 10 has sufficient strength to withstand bending due to one-point towing. Note that the legs 7 may be provided two by two to enhance the action of maintaining the direction of the pressure receiving plate and the vertical posture.

3 and 4 (A), adjacent pressure receiving plates 2,
The contact surfaces of the two rectangular plates 2 are flat side surfaces 2a and 2a. For example, as shown in FIG. 4B, one of the side surfaces has a ridge as a vertical projection 2b, and the other side has the ridge. As shown in FIG.
As shown in (C) and (C '), the groove 2c is formed on both sides.
And a tubular cloth bag 2 between the opposed concave grooves 2c, 2c.
It is preferable that a plurality of pressure receiving plates arranged in a row perform a powerful pressure receiving action in cooperation with each other as shown in the drawing, for example, by inserting e and filling it with mortar.
When the vertical cut surface 1 'along the glue slope is curved, the meat of the front and rear edges 2f and 2g of the side surface of the pressure receiving plate 2 is dropped as shown in FIG. Making it possible is necessary for each of FIGS. 4A, 4B, and 4C.

The rectangular plate of the pressure receiving plate 2 of the embodiment shown in FIGS. 3 and 4 has insert anchors 15 on the left and right sides of the upper end face and on the left and right sides of the lower end of the front face, respectively. For example, as shown in FIG. 6, this is useful when the upper pressure receiving plates 2 are arranged vertically after the lower pressure receiving plates 2 arranged vertically are fixed in a correct posture. That is, as shown in FIG. 6, the insert anchor 15 on the upper end surface of the lower pressure receiving plate 2 and the lower end or upper end insert anchor 15 on the front surface of the upper pressure receiving plate 2 are connected to the bolt 15 a and the seat The upper pressure receiving plate can be adjusted and held in the same correct posture as the lower pressure receiving plate by fastening with the plate 15b or the like and turning the turn buckle 15c.

FIG. 7 shows a finished appearance of the method of the third aspect, and FIG. 8 shows each step. The process of FIG. 8A is the same as that of FIG.
Is exactly the same as The strip-shaped pressure receiving plate 2 'for relaying is a rectangular plate having a narrow width, and has a vertical groove 16 on one side of the left and right side edges, into which one edge of the horizontally long pressure receiving plate 4 serving as a retaining plate is fitted. Having. In order to arrange the strip-shaped pressure receiving plates 2 ′ at required intervals, the interval between the holes 5 formed in front of the vertical cutting surface 1 ′ on the horizontal surface 1 is accurately determined according to the width of the horizontally long pressure receiving plate 4. When the legs 7 are respectively dropped into the holes as shown in FIG. 8B, the strip-shaped pressure receiving plate 2 'comes into contact with the cut surface 1' and stands stably. It should be noted that the interval between the strip-shaped pressure receiving plates 2 ′ is slightly smaller than the horizontal width of the horizontally long pressure receiving plate 4. Although the height of the cut surface 1 'is lower than the step, when the rectangular pressure receiving plate is erected, it is higher than the position of the anchor through hole 9 of the rectangular pressure receiving plate.

FIG. 8 (C) shows a strip-shaped pressure receiving plate 2 'arranged side by side.
In this example, two horizontally long pressure receiving plates 4 each of which is a simple rectangular concrete plate are dropped and fitted in a vertical groove on a side edge of each strip-shaped pressure receiving plate. Thereafter, as in the description of FIG. 2C, the drilling machine 11 is inserted into the anchor through hole 9 of the strip-shaped pressure receiving plate 2 'to form an anchor hole reaching the ground from the cut surface 1'. PC in this hole
The steel anchor material 10 is inserted and grout is injected. When the grout hardens, the anchor material is tensioned and fixed in the anchor through-hole 9, and the fixing portion is closed with the lid 3 (see FIG. 9). A rear face of the strip-shaped pressure receiving plate 2 ′ and the horizontally long pressure receiving plate 4;
Embankment e required for clearance between the vertical slope and the slope
I do. When one stage is completed in this way, FIG.
The next step is made by repeating the steps (A) to (C). In this case, if the slope is a natural slope, one step is created from the bottom to the top, and if the slope is a cut slope, one step is created from the top to the bottom, so that the work procedure and safety are good.

As described in the paragraph 0012, when the soil quality of the ground is stable such as clayey soil, a vertical cut surface 1 'behind the shelf-like horizontal surface 1 as shown in FIG. And the strip-shaped pressure receiving plate 2 'and the horizontally long pressure receiving plate 4 can be arranged in a line on the horizontal surface 1 while making contact with the cut surface 1'. However, depending on the soil quality, a stable slope is required to prevent collapse during construction. Then, the leg 7 hanging from the strip-shaped pressure receiving plate 2 'is dropped and fitted into a hole 5 dug in a horizontal plane along the front of the inclined cut surface 1 ", and the cut 7 is left and right. When the vertical pressure receiving plate 4 is erected at a certain interval, or when the horizontal pressure receiving plate 4 is vertically stacked at the adjacent distance between the strip-shaped pressure receiving plates, the rear surface of the rectangular pressure receiving plate 2 ′ or the back of the horizontal pressure receiving plate 4 is inclined. Soil 1 "
In some cases, a gap may be formed below the anchor through hole 9 of the strip-shaped pressure receiving plate (see FIG. 13). At this time, the strip-shaped pressure receiving plates 2 are arranged side by side, and the horizontally long pressure-receiving plates 4 are vertically stacked at intervals adjacent to the strip-shaped pressure receiving plates. Filling the backing material with high compressive strength to about 2/3 of the height of the strip-shaped pressure receiving plate and rolling it to form the backfill reinforcing layer C, thereby filling the voids with the backfill reinforcing layer, Through hole 9 for anchor of pressure receiving plate
From the drilling machine 11 through the backfill reinforcement layer C and into the soil,
Anchor holes reaching the ground from the sloping cut surface 1 "are drilled one after another at a nearly horizontal downward inclination angle (around 10 °), and anchor materials 10 are inserted into the anchor holes respectively. After grout (mortar) is injected into the anchor hole and solidified, the anchor material is tensioned to apply a prestress and is fixed in the anchor through hole 9 of the strip-shaped pressure receiving plate 2 '. The construction period is shorter and more economical than when filling the voids with concrete that has to wait for a long time.The embankment e is placed on the backfill reinforcement layer C, and the upper end of the pressure receiving plate and the ground slope Close between.

FIGS. 9 and 10 show the configuration of the strip-shaped pressure receiving plate 2 'and the horizontally long pressure receiving plate 4 made of concrete shown in FIG. To illustrate the dimensions, the strip-shaped pressure receiving plate 2 ′ has a height of about 2 m, which is almost the same as the step, and a leg 7 having a diameter of 300 mm and a length of 600 mm is provided below a rectangular plate having a width of 700 mm and a thickness of 300 mm. A vertical groove 1 with 100 mm width and depth on both sides
6 for receiving one end of a horizontally long pressure receiving plate 4 having a thickness of 80 mm, a width of 2 m and a height of 1 m. Flute 16
Is located at a position 25 rearward from the middle of the thickness of the strip-shaped pressure receiving plate 2 '.
mm, and the front groove wall for receiving earth pressure is thickened. The horizontally long pressure receiving plate may be reinforced by incorporating a braided reinforcing bar or a prestressed PC steel material. Also, if the braided reinforcing bar 14 and the prestressed PC steel material 13 are incorporated in the strip-shaped pressure receiving plate 2 ', similarly to the rectangular pressure receiving plate 2 in FIGS. The bending strength can be obtained, and the mounting strength with the leg 7 can be increased. In addition, the groove of the vertical groove 16 is slightly opened outward,
If the strip-shaped pressure receiving plate 2 'and the horizontally long pressure receiving plate 4 have different directions, refraction connection is possible, so that the cut surface 1' can be curved (see FIG. 10B).

FIG. 9A and FIG.
1, insert anchors 15 are provided on the left and right sides of the upper end face and on the left and right sides of the lower end of the front face, respectively. The insert anchors on the upper end face of the lower rectangular pressure receiving plate 2 'and the inserts on the lower front face or the upper end face of the upper one are provided. The anchor is connected with a bolt, a seat plate or the like via a turnbuckle 15c in the same manner as shown in FIG. 6, and the turnbuckle 15c is turned to adjust the upper support to the same correct posture as the lower support,
Preferably, it can be retained.

The embodiments of the gluing method and the pressure receiving plate and the pressure receiving device according to the present invention have been described above, but it goes without saying that the present invention can be changed and applied according to the working conditions without changing the gist. In addition, the number of legs of the square-shaped pressure receiving plate or the rectangular pressure receiving plate is not limited to one but may be plural. Even if it is necessary to form a shelf-like horizontal surface with a required step on the slope, it is naturally possible that there is only one step. Pressure plate 2,
The height of 2 'does not need to be exactly equal to the level difference in the horizontal plane, but may be slightly higher, and the posture in which they stand may be slightly inclined from the vertical if necessary.

[0024]

Conventionally, a construction method has been developed in which a concrete frame assembled along a slope to prevent a landslide on a slope is connected to the ground with a PC steel anchor material, and great results have been obtained. Later, a greening retaining wall was developed, in which the concrete frame was erected vertically along the slope to make the slope greener, and trees were planted between them. However, the present invention has developed a method of using a concrete frame that stands vertically on a greening retaining wall as a pressure receiving plate for preventing landslides, not as a simple earth retaining material. In other words, by inserting the legs serving as strong supports from the pressure receiving plate standing in contact with the cut surface behind the horizontal plane into the ground, the anchor material is given a prestress sufficient to suppress the layered landslide and settles. The pressure receiving plate stably receives the pressure. Then, by making the slope of the anchor member downwardly inclined closer to the horizontal, an effect of suppressing the pressure receiving plate and the leg from directly facing the layered landslide can be obtained. In addition, the strength of the pressure receiving plate can be increased and the weight can be reduced by the self-standing system with embedded legs and the use of PC steel for reinforcement (introduction of pre-stress), so that the workability of transportation and installation at the site is improved and economic became.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an external appearance according to the invention of claim 1;

2 (A) is a process explanatory view of claim 1, wherein (A) is a state in which a vertical shelf is formed and a vertical hole is dug, (B) is a state in which square pressure receiving plates are vertically arranged, and (C) is a drilling machine. Shows a state in which the anchor hole is drilled and the anchor is fixed, and (D) shows a state in which the block is buried on the back surface and completed one step.

3A is a front view of the glued state according to claim 1 of FIG. 1, and FIG. 3B is a cross-sectional view of FIG.

4A is a plan view of FIG. 3A, FIG. 4B is a plan view of a second example of the pressure receiving plate 2, FIG. 4C is a plan view of a third example of the pressure receiving plate 2, and FIG. () Is an enlarged plan view of a main part of (C).

5A is an elevation view of a braided reinforcing bar inside the pressure receiving plate 2, FIG.
(B) is a plan view of (A).

FIG. 6 is an explanatory diagram of an assembling situation of upper and lower quadrangular pressure receiving plates of FIG. 1;

FIG. 7 is an explanatory view of an appearance according to the invention of claim 3;

8 (A) is a state in which a vertical shelf is dug down, (B) is a state in which strip-shaped pressure receiving plates are erected, and (C) is a strip. FIG. 4 shows a state in which a horizontally long pressure receiving plate is inserted between the pressure receiving plates.

9A is a front view of a glued state according to claim 3, and FIG. 9B is a cross-sectional view of FIG. 9A.

10A is a plan view of FIG. 9A, and FIG.
It is the elements on larger scale of 0 (A).

11 is an explanatory view of the assembling situation of the upper and lower strip-shaped pressure receiving plates of FIG. 7;

FIG. 12 is a sectional view of a glued state according to claim 2;

FIG. 13 is a sectional view of a glued state according to claim 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Horizontal surface 1'1 "Cut surface 2 Square pressure receiving plate 2 'Rectangular pressure receiving plate 4 Horizontal long pressure receiving plate 7 Leg 10 Anchor material

Claims (6)

[Claims] 1. A step having a horizontal surface for planting and a cutting surface connected behind the horizontal surface is formed in a stair-like shape by shaving a slope with a required step, and the cutting surface of each horizontal surface is formed in front of the cutting surface. Holes are drilled at required intervals to the left and right along the width of each hole. Standing vertically in a horizontal line on a horizontal surface while making the plate almost in contact with the cut surface, insert the anchor material obliquely downward through the cut surface from the through hole for anchor previously established in each of the pressure receiving plates, Fixing the tip of the anchor material to the ground, prestressing this anchor material and fixing the other end of the anchor material to the through hole for anchor of each pressure receiving plate is performed for each step. Gluing method. 2. A step having a horizontal surface for planting and a stable inclined cutting surface connected to the rear of the horizontal surface is formed in a step-like manner by shaving the slope with a required step, and the inclined cutting of each horizontal surface is performed. Drill holes at the required intervals left and right along the front of the soil surface.In each hole, insert a leg that is wide and has a height that is approximately the same as the above-mentioned step, and that hangs down from a large-sized pressure plate. A plurality of pressure receiving plates are vertically arranged vertically adjacent to each other on a horizontal plane in a horizontal plane, and a gap between the pressure receiving plate and the inclined cut surface is filled with a backing material having a large compressive strength and rolled. A backfill reinforcement layer is formed, and the anchor material is inserted obliquely downward from the anchor through-hole previously formed in each of the pressure receiving plates, through the backfill reinforcement layer and the inclined cut surface, and the tip of the anchor material is grounded. Fix the anchor to the mountain, prestress this anchor and apply the other end of the anchor to the A gluing method, wherein fixing to a through hole for a car is performed for each step. 3. A step having a horizontal surface for planting and a cutting surface continuous behind the horizontal surface is formed in a step-like manner by shaving the slope with a required step, and the cutting surface in front of the cutting surface of each horizontal surface is formed. Holes are drilled at required intervals to the left and right along the length of each hole, and a plurality of strip-shaped pressure receiving plates are inserted into each of the holes by inserting legs that are narrow and have a height that is approximately the same as the height of the step. Standing vertically on the horizontal surface with a certain adjacent interval on the horizontal plane while making almost contact with the cut surface,
At each adjacent interval of the rectangular pressure receiving plate, a horizontally long pressure receiving plate is engaged with the left and right rectangular pressure receiving plates and stacked up to the height of the rectangular pressure receiving plate, and from the anchor through hole previously established in the rectangular pressure receiving plate. Insert the anchor material obliquely downward through the cut surface, fix the tip of the anchor to the ground, apply prestress to this anchor material, and pass the other end of the anchor material through each strip-shaped pressure plate for anchoring A gluing method, wherein fixing to holes is performed for each step. 4. A step having a horizontal surface for planting and a stable inclined cutting surface connected to the rear of the horizontal surface by shaving the slope with a required step to form a step-like step, and the inclined cutting of each horizontal surface Holes are drilled at required intervals to the left and right along the front of the soil surface, and a plurality of strips are inserted into each of the holes by inserting legs that are narrow and have a height that is approximately the same as the step above, and that hang from a strip-shaped pressure receiving plate. The pressure-receiving plates are vertically arranged on the horizontal surface with a certain interval between them on the left and right sides, and the rectangular pressure-receiving plates are engaged with the horizontal pressure-receiving plates at the adjacent intervals of the rectangular pressure-receiving plates while engaging with the left and right rectangular pressure-receiving plates. Vertically up to the height of the above, filling the gap between the above-mentioned strip-shaped pressure receiving plate, the horizontally long pressure receiving plate and the inclined cut surface with a backing material with high compressive strength, and rolling it to form a backfill reinforcing layer , The backfill reinforcement layer and the inclined cut surface from the through hole for anchor previously established in the rectangular pressure receiving plate. After that, insert the anchor material obliquely downward, fix the tip of the anchor to the ground, apply prestress to this anchor material, and fix the other end of the anchor material to the anchor through hole of each strip-shaped pressure receiving plate. A gluing method characterized in that this is performed for each stage. 5. The method according to claim 5, wherein said slope is cut at a required step to form a horizontal surface for planting and a cut surface connected to the horizontal surface to form a cut surface. A large-sized rectangular plate having a wide width and the same height as the above-mentioned step, and a lower end surface of the large-sized plate, which is a concrete glue-receiving pressure plate which is arranged vertically adjacent to a horizontal line on a horizontal plane. From the ground, and the large plate is placed on the horizontal surface almost in contact with the cut surface, and anchored diagonally downward through the cut surface Material can be inserted,
A glue receiving pressure plate provided with a through hole for an anchor capable of fixing an end of an anchor material. 6. A stepped step formed by shaving a slope with a required step to form a horizontal plane for planting and a cut plane connected to the rear of the horizontal plane. A pressure plate device made of concrete which is arranged vertically in a row on the left and right sides, and has a narrow width and a height of about the same height as the step, and
It is provided with legs which are integrally hung from the lower end surface of the plate body and are buried in the ground in a horizontal plane, and the strip plate bodies are substantially in contact with a cut surface, and are vertically arranged on the horizontal plane with a specific space left and right. A strip-shaped pressure receiving plate and a horizontally long pressure-receiving plate that is stacked up to the height of the pressure-receiving plate at adjacent intervals of the strip-shaped pressure-receiving plate, and the strip plate of the strip-shaped pressure-receiving plate faces obliquely downward through a cut surface. Anchor material can be inserted and an anchor through hole can be provided to fix the end of the anchor material.In addition, the left and right sides of the strip plate and the left and right sides of the horizontally long pressure receiving plate opposed thereto are provided. A gluing pressure receiving device comprising an uneven engagement portion.