JPH0813519A - Retaining wall and assembling method thereof - Google Patents

Abstract

PURPOSE:To dislocation and overturn of a retaining wall through reduction of earth pressure and to use the inside effectively by forming a curve curved in the rear, on the retaining wall, and making an angle between a lower part of the curve and a ground surface almost equal to the inclination of a sliding surface. CONSTITUTION:Plural pieces of a column made up of H-steel, steel structure, reinforced concrete, plastics or the like are erected on a base part 108 in both directions. In addition, concrete placing at a construction site is carried out in each interval between those of columns and/or plural pieces of panels such as prestressed concrete slabs and suchlike are held between in the vertical direction and joined together with a bonding member, whereby a retaining wall 100 with a curve 146 consisting of a perpendicular part 102 and both upper and lower parts 104 and 106 curved in the rear is constructed. Then an angle between the lower part 106 of the curve 146 and a ground surface 300 is made almost equal to the inclination psi of a sliding surface, and in an area A at an angle of below this inclination psi, earth pressure comes to zero, and this earth pressure is made so as to be imposed on only an area B of + or -200, whereby the earth pressure as a whole is made so as to be reduced. In this connection, a trough, a bench 147, flower bed 148, a footway 149, a drainage ditch 150, or the like may be installed on the inside of the curve 146.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining wall, and more particularly to a retaining wall provided near a railroad track, a motorway, a residential area or the like.

[0002]

2. Description of the Related Art Conventionally, when there is a cliff near a railroad track, a road, a residential area, etc., a retaining wall is provided to prevent the soil of the cliff from collapsing. For example, the example shown in FIG. 6 is a retaining wall provided near the railroad track. That is,
There is a cliff in the immediate vicinity of the track 5 on which the train passes, and a retaining wall 1 is provided so that the soil 2 on the cliff does not collapse.

The retaining wall 1 is formed thicker from the upper part to the lower part, and by receiving the earth pressure 3 by this, the earth 2 is prevented from collapsing.

[0004]

However, the above-mentioned conventional retaining wall 1 has the following problems. That is, as described above, the retaining wall 1 receives the earth pressure 3 applied from the earth 2 in the horizontal direction, so that the earth 2 does not collapse. In order to prevent the retaining wall 1 from shifting forward (arrow 6) or tipping over (arrow 7) due to this earth pressure 3, it is necessary to install a foundation 4 for preventing displacement and tipping over in front of the retaining wall 1. .

However, since the space between the retaining wall 1 and the track 5 is extremely narrow, it is not possible to secure a space for installing the foundation 4. If the space for installing the foundation 4 is to be secured, a new site must be acquired to move the retaining wall 1 rearward, which is not appropriate.
This is the same when the retaining wall 1 is located near a motorway or a residential area.

It is an object of the present invention to reduce the earth pressure to prevent the retaining wall from slipping and falling, and to reduce the number of members forming the retaining wall.

[0007]

[Means for solving the problems]
The retaining wall 100 has a curved portion 146 composed of an upper portion 104 and a lower portion 106, which are curved rearward.
The invention according to claim 1, wherein the angle between the ground and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface.
A plurality of columns 500 that are the retaining wall 100 and have a curved portion 146 composed of an upper portion 104 and a lower portion 106 that are curved rearward, and a plurality of columns 500 are arranged in the left-right direction. And the curved portion 1
The invention according to claim 4, which is a retaining wall characterized in that the angle formed by the lower portion 106 of 46 and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface, and the retaining wall 100, the upper portion 104 being curved rearward. And a plurality of columns 500 each having a curved portion 146 composed of a lower portion 106 and the lower portion 106 and arranged in the left-right direction.
6. The retaining wall, which is made of concrete 112 that has been cast in the field during 00, and the angle between the lower portion 106 of the curved portion 146 and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface. Of the invention and the method for assembling the retaining wall 100, a plurality of columns 500 having a curved portion 146 composed of an upper portion 104 and a lower portion 106 which are curved rearward are arranged in the left-right direction, and a panel 110 is provided between the respective columns 500. A plurality of sheets are vertically sandwiched, and the lower portion 106 of the curved portion 146 and the ground 3
7. The invention according to claim 6, which is an assembling method for the retaining wall, wherein the angle formed with 00 is substantially equal to the inclination Ψ of the sliding surface, and the assembling method for the retaining wall 100. A plurality of columns 500 having a curved portion 146 composed of the upper portion 104 and the lower portion 106 are arranged in the left-right direction to form each column 5
8. The method for assembling a retaining wall according to claim 7, characterized in that concrete 112 is cast in the field during 00, and the angle formed by the lower portion 106 and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface. And the retaining wall 100, the retaining wall 100 has a curved portion 146 composed of an upper portion 104 and a lower portion 106 which are curved rearward, and the upper portion 104 and the lower portion 106 are block-shaped and are coupled by a coupling member 600. The retaining wall is characterized in that the lower portion 106 is fitted to the block-shaped foundation portion 108, and the angle formed by the lower portion 106 and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface. The invention according to claim 8 and the block-shaped upper portion 10
Bending part 14 which is composed of 4 and a lower part 106 and is bent backward
A method of assembling a retaining wall 100 including 6, wherein the lower portion 106 is fitted to a block-shaped base portion 108,
10. The retaining wall assembling method according to claim 9, wherein the upper part 104 and the upper part 104 are connected by a connecting member 600, and an angle formed by the lower part 106 and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface. And the retaining walls 100, 100 provided on both sides of the embankment 202, which are mutually connected by a connecting member 400, and each retaining wall 100, 100 is composed of an upper portion 104 and a lower portion 106 that are curved rearward. Curved part 14
The invention according to claim 10 is a retaining wall characterized in that the angle between the lower part 106 and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface.

[0008]

Therefore, the structure of the present invention can reduce the earth pressure by making the angle between the lower portion 106 of the curved portion 146 and the ground surface 300 substantially equal to the inclination Ψ of the sliding surface.
Therefore, it is possible to prevent the retaining wall from shifting and falling, and reduce the number of members forming the retaining wall.

[0009]

The present invention will be described below with reference to the accompanying drawings by way of examples. A. First Embodiment FIGS. 1, 7, and 8 are diagrams showing a first embodiment of the present invention. In the figure, reference numeral 100 is a retaining wall, 200 is soil, and Ψ is the inclination of the sliding surface.

As described above, the retaining wall 100 has the soil 2
00 has a function of stopping falling down, and as shown in FIG. 1A, it is composed of a vertical portion 102, a curved portion 146, and a base portion 108. The curved portion 146
Is curved rearward and is composed of an upper part 104 and a lower part 106, of which the angle formed by the lower part 106 and the ground surface 300 is approximately equal to the inclination Ψ of the sliding surface.

As is well known, the inclination Ψ of this sliding surface is 26 ° to 30 ° in the case of ordinary soil,
In the area A having an angle smaller than Ψ, the earth pressure becomes zero.
Therefore, since the earth pressure is applied only to the region B of the earth 200, the earth pressure is reduced as a whole. In FIG. 8, reference numeral 1
52 indicates a sidewalk.

FIG. 1A shows a retaining wall 100 provided near a railroad track, and a space for installing a trough or the like is provided inside the curved portion 146. Further, when the retaining wall 100 is provided near a road or a park, a stool 147 (FIG. 1A) and a flowerbed 148 (FIG. 1) are provided inside the lower portion 106 of the curved portion 146.
(B)), sidewalk 149 (Fig. 1 (C)), etc. are installed,
Moreover, it is possible to provide the drain groove 150 in the vicinity of the stool 147, the flowerbed 148, and the sidewalk 149.

B. Second Embodiment FIG. 2 is a diagram showing a second embodiment of the present invention. In this embodiment, the concrete block 100a ... (for example, P
C plate) and cast-in-place concrete 100b. 2A is a perspective view seen from the front, FIG.
(B) is a perspective view seen from the rear.

Also in this case, of the upper part 104 and the lower part 106 which form the curved part 146, the angle formed by the lower part 106 and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface.

C. Third Embodiment FIG. 3 is a diagram showing a third embodiment of the present invention. In this embodiment, an assembly retaining wall 100 having a support column 500 and a support column 500 are provided.
It is a cast-in-place retaining wall 100 having. The column 500 includes the vertical portion 102, the curved portion 146, and the base portion 108 of the retaining wall 100.
Has a shape corresponding to, and is curved backward as a whole.

The support column 500, as shown in FIG.
For example, H steel metal, other steel frame, reinforced concrete,
It is formed of plastic or the like. Then, a plurality of such columns 500 are arranged side by side, and for example, a plurality of panels 110 (for example, PC boards) are sandwiched between the columns 500,
The portion 502 buried in the ground is surrounded by the PC board 101,
During this time, concrete 103 is filled to form a base portion 108.

As a result, the vertical portion 102 and the curved portion 146 are
The retaining wall 100 including the base portion 108 and the base portion 108 is assembled. Also in this case, the angle formed by the lower portion 106 of the curved portion 146 and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface.

Further, the retaining wall 100 can be formed by arranging a plurality of columns 500 laterally and driving concrete 112 between the columns 500 on site.

D. Fourth Embodiment FIG. 4 is a view showing a fourth embodiment of the present invention, which is an assembly type retaining wall. The illustrated retaining wall 100 has a curved portion 146.
The upper part 104 and the lower part 106 that make up the
It is characterized in that 08 is formed separately in a block shape. Each block is usually made of concrete or synthetic resin, but is not limited to these materials.

The upper portion 104 and the lower portion 106 forming the curved portion 146 are joined by a joining member, for example, a bolt and a nut 600. That is, the lower portion 106 has a recess 10
6a is formed, and the curved portion 1 is formed in the recess 106a.
The upper portion 104, which constitutes 46, is fitted, and as described above,
A bolt penetrates this recess 106a and is tightened by a nut.

A recess 108a is formed in the base portion 108, and the lower portion 106 which constitutes the curved portion 146 is fitted in the recess 108a.

When assembling the retaining wall 100 as described above, first, the cast-in-place concrete or block-shaped foundation 108 is buried in the ground. Next, the lower portion 106 forming the curved portion 146 is fitted into the recess 108a of the base portion 108, the upper portion 104 is fitted into the recess 106a of the lower portion 106, and the both are joined by the bolt and the nut 600.

Of the upper part 104 and the lower part 106 constituting the curved portion 146, the angle formed by the lower part 106 and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface.

D. Fifth Embodiment FIG. 5 is a diagram showing a fifth embodiment of the present invention. The fifth embodiment is a retaining wall for retaining earth on the embankment 202 on highways, elevated railways and the like. The retaining walls 100 are provided on both sides of the embankment 202, and the retaining walls 100, 100 are connected at their heads or middle portions with a connecting member 400, for example, a reinforcing bar or a steel frame (FIG. 5 (A)). .

As a connection method, there is a tie lot construction method in which the connection member 400 is pulled by a turnbuckle.

Also in this case, the lower portion 106 of the curved portion and the ground 3
The angle formed with 00 is approximately equal to the inclination Ψ of the sliding surface. Therefore, even if the earth pressure is applied outward from the embankment 202, the earth pressure becomes zero in the area A having an angle smaller than the inclination Ψ of the sliding surface, and the earth pressure is applied only to the area B. As earth pressure is reduced, retaining walls 100, 1
00 does not shift or fall.

Further, since it is not necessary to install a rolling prevention foundation near the lower portions 106 of the retaining walls 100, 100, a drainage groove 150 can be provided as shown in the figure.

In the case of the retaining wall 100 for the embankment 202,
As shown in FIG. 5B, a tunnel 105 that penetrates the retaining wall 100 and the embankment 202 can be provided, and the retaining wall 1
A relief pattern or the like may be drawn on the outer side surface 107 of 00.

[0029]

As described above, according to the present invention, by reducing the earth pressure, it is possible to prevent the retaining wall from slipping and falling, and to reduce the number of members forming the retaining wall. In addition, by curving the retaining wall, the inside can be used effectively, and space for installation such as troughs, stools, flower beds,
Sidewalks can be installed.

Further, when applied to the retaining wall of the embankment, the embankment can be used to safely and inexpensively manufacture an expressway or the like.

[0031]

[Brief description of drawings]

FIG. 1 is a diagram (No. 1) showing a first embodiment of the present invention.

FIG. 2 is a diagram showing a second embodiment of the present invention.

FIG. 3 is a diagram showing a third embodiment of the present invention.

FIG. 4 is a diagram showing a fourth embodiment of the present invention.

FIG. 5 is a diagram showing a fifth embodiment of the present invention.

FIG. 6 is an explanatory diagram of a conventional technique.

FIG. 7 is a view (No. 2) showing the first embodiment of the present invention.

FIG. 8 is a view (No. 3) showing the first embodiment of the present invention.

[Explanation of symbols]

 100 Retaining wall 102 Vertical part 104 Upper part 106 Lower part 108 Foundation part 146 Curved part 200 Soil 300 Ground Ψ Inclination of sliding surface

Front page continuation (72) Inventor Tadayoshi Ishibashi 1-6-5 Marunouchi, Chiyoda-ku, Tokyo Within East Japan Railway Company (72) Inventor Hisa Hara Nishi-daiwa 392-405, Washimiya-cho, Kitakatsushika-gun, Saitama Prefecture ( 72) Inventor, Professor Takatsu, 2-27, 43, Miyoshi-cho, Fuchu-shi, Tokyo, (72) Inventor, Masayuki 2-27, 43, Miyoshi-cho, Fuchu, Tokyo

Claims (10)

[Claims] 1. A retaining wall 100 having a curved portion 146 composed of an upper portion 104 and a lower portion 106 which are curved rearward, and an angle formed between the lower portion 106 and the ground surface 300 is a slope of a sliding surface. Retaining wall characterized by being approximately equal to Ψ. 2. A stool 147, a flowerbed 148, or a sidewalk 14 is provided inside the lower portion 106 of the curved portion 146.
The retaining wall according to claim 1, wherein an installed object such as 9 is installed, or a drain groove 150 is provided near the inside. 3. A concrete block 100a and / or
The retaining wall according to claim 1, which is formed of cast-in-place concrete 100b. 4. A support wall 100, which has a curved portion 146 composed of an upper portion 104 and a lower portion 106 that are curved rearward, and a plurality of columns 500 arranged in the left-right direction, and each column 50.
A retaining wall comprising a plurality of panels 110 vertically sandwiched between 0 and an angle formed between the lower portion 106 of the curved portion 146 and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface. . 5. The retaining wall 100, which has a curved portion 146 composed of an upper portion 104 and a lower portion 106 which are curved rearward, and a plurality of columns 500 arranged in the left-right direction, and each column 50.
A retaining wall which is made of concrete 112 that has been cast in the field during 0, and the angle between the lower portion 106 of the curved portion 146 and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface. 6. A method of assembling a retaining wall 100, comprising a curved portion 14 comprising an upper portion 104 and a lower portion 106 which are curved rearward.
A plurality of columns 500 having 6 are arranged in the left-right direction, and a plurality of panels 110 are vertically sandwiched between the columns 500,
An assembling method of a retaining wall, wherein an angle formed by the lower portion 106 of the curved portion 146 and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface. 7. A method of assembling a retaining wall 100, comprising a curved portion 14 comprising an upper portion 104 and a lower portion 106 which are curved rearward.
A plurality of columns 500 having 6 are arranged in the left-right direction, and concrete 112 is driven between the columns 500 at the site,
The angle formed by the lower portion 106 and the ground surface 300 is the inclination Ψ of the sliding surface.
Retaining wall assembling method characterized in that it is approximately equal to. 8. A retaining wall 100 having a curved portion 146 comprising a rearwardly curved upper portion 104 and a lower portion 106, wherein the upper portion 104 and the lower portion 106 are block-shaped, and a connecting member is provided. Coupled by 600,
A retaining wall characterized in that the lower portion 106 is fitted with a block-shaped base portion 108, and an angle formed by the lower portion 106 and the ground surface 300 is substantially equal to the inclination Ψ of the sliding surface. 9. The retaining wall 10 including a rearwardly curving portion 146 composed of a block-shaped upper portion 104 and a lower portion 106.
In the assembly method of No. 0, the lower portion 106 is fitted to the block-shaped foundation portion 108, and the lower portion 106 and the upper portion 104 are joined by the joining member 600, so that the lower portion 106 and the ground 3
The method of assembling a retaining wall, wherein the angle formed with 00 is approximately equal to the inclination Ψ of the sliding surface. 10. The retaining wall 10 provided on both sides of the embankment 202.
0, 100, which are connected to each other by a connecting member 400, each retaining wall 100, 100 has a curved portion 146 consisting of a rearwardly curved upper portion 104 and a lower portion 106, and the lower portion 106 and the ground surface 300. A retaining wall characterized in that the angle formed by and is approximately equal to the inclination Ψ of the sliding surface.