JP2003206537A - Backfilling member arranged under pressure receiving plate for stabilizing slope and backfilling construction method using this backfilling member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a backfilling member capable of easily and surely bringing a pressure receiving plate into close contact with a slope, and a backfilling construction method using this member. <P>SOLUTION: When stabilizing the slope by fixing the pressure receiving plate 4 to the slope 1 by using an anchor 2 installed in the ground by using the backfilling member 3 having a deformable wrapping bag 11 housing a porous substance 12, and having only gas permeability, the backfilling member is arranged between the pressure receiving plate and the slope. The backfilling member is deformed by copying after a recess-projection of the slope by arranging the pressure receiving plate on the slope, and cement milk 13 is filled in the backfilling member, and is uniformly impregnated into and held by the porous substance. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to pressure receiving in order to stabilize mountain slopes along roads and railways, slopes formed by shaving the ground, retaining walls, etc. (hereinafter referred to as slopes). When fixing the plate or pressure plate by pressing it against the slope,
The present invention relates to a backfilling member that is inserted between the slope and the pressure receiving plate to increase the degree of adhesion between them, and a backfilling method using the backfilling member.

[0002]

2. Description of the Related Art Conventionally, when a pressure receiving plate is pressed against an inclined surface by using an anchor or the like to be fixed, if the inclined surface contacting the pressure receiving plate has unevenness, a uniform stress does not act on the pressure receiving plate, which is sufficient. Since the effect cannot be exhibited, when there is such unevenness, the pressure receiving plate is attached after the work of placing the mortar on the slope to make it flat.

[0003]

However, the work of flattening with mortar is troublesome, and it is difficult to flatten it to the extent that the entire lower surface of the pressure receiving plate is in close contact.

As a method of solving such a problem, for example, a sponge is arranged between the pressure receiving plate and the slope, and a filler, for example, cement milk is permeated into the sponge to be solidified, and the pressure receiving plate is closely attached to the slope. It has been proposed to let. However, in this case, when the filler is infiltrated into the sponge, the filler easily flows in the lower direction by its own weight,
Since the filler cannot evenly permeate the entire sponge and be retained, there is a problem that the pressure receiving plate and the slope are not sufficiently adhered to each other. There is also a problem that the neighborhood becomes dirty.

The present invention has been made by paying attention to the above-mentioned conventional problems. The filling material is evenly held under the pressure receiving plate according to the unevenness of the slope, and the pressure is received after the filling material is solidified. To provide a backfilling member that enables the lower surface of the plate and the inclined surface to come into close contact with each other under the interposition of a filler, and to provide an effective backfilling method using the backfilling member. The purpose is.

[0006]

To achieve the above object, in the invention according to claim 1, in order to stabilize the slope, when the pressure receiving plate is pressed against and fixed to the slope, the slope and the pressure receiving plate are fixed. And a deformable packet made of a material that is substantially permeable to air and is a backfilling member that is inserted between ,
And a compression-deformable substance capable of impregnating and holding a filler.

In the present invention, backfilling means, in addition to the case where the backfilling member is arranged over the entire lower surface of the pressure receiving plate,
Including those that are partially arranged. INDUSTRIAL APPLICABILITY The present invention can be applied to pressure-receiving plates of various shapes such as cruciforms and polygons that have already been proposed, and of various materials such as PS concrete and steel. The packaging bag may be an integral body having a contour shape conforming to the bottom surface shape of the pressure receiving plate, or a plurality of packaging bags arranged so as to be subordinate to the bottom surface shape of the pressure receiving plate. . Further, in the present invention, the filler means a fluid, such as cement milk or resin, which is capable of infiltrating into the slits, small holes and the like and solidifying with time.

When the back-filling member configured as described above is disposed between the pressure receiving plate and the slope and is compressed by the pressure receiving plate, the back-filling member is deformed to fit the unevenness of the slope. When the filling material is injected into the backfilling member in this state, the packaging material is a material that substantially only allows air to permeate, so the filling material hardly exudes to the outside of the backfilling member and is compressed and deformed. It penetrates evenly into the whole of the possible substance and solidifies in that state. Therefore, the pressure receiving plate comes into close contact with the above-mentioned slope through the solidified filler. Further, since the filler hardly leaks from the packaging bag, the vicinity of the work site is not polluted and the amount of the filler can be minimized. Further, since such a backfilling member can be constructed simply by storing the porous substance in the packaging bag, there is an advantage that it can be made simple and inexpensive.

The invention according to claim 2 is characterized in that the compressively deformable substance is a porous substance. With this structure, the filler can be effectively retained.

The invention according to claim 3 is characterized in that the porous substance comprises a plurality of porous fragments. With such a configuration, the work of storing the porous substance in the packaging bag is facilitated, and the porous substance that has been scrapped in various fields can be reused as fragments, and further, it can be used in any shape. Since the porous pieces can be used, the backfilling member can be manufactured at low cost.

According to a fourth aspect of the present invention, the packaging bag is formed of a non-woven fabric. With this configuration, when the filling material is injected into the packaging bag, the air in the packaging bag is pushed out due to the air permeability of the nonwoven fabric, but the exudation of the filling material is prevented.

According to a fifth aspect of the present invention, the porous material is formed of sponge, urethane foam or pulp product. Porous sponges, urethane foams, and pulp products have good absorbability of fillers, are inexpensive, and waste materials are easily available.

According to the sixth aspect of the present invention, when the pressure receiving plate is pressed against and fixed to the slope in order to stabilize the slope, the degree of adhesion between the slope and the pressure receiving plate is increased. In a backfilling method in which a backfilling member is inserted, between the pressure receiving plate and the inclined surface, a material that is substantially air permeable and contains a compressible deformable substance capable of impregnating and holding a filler. A deformable backfilling member in the form of a packaging bag made of plastic, a step of compressing the backfilling member with a pressure receiving plate, and deforming the backfilling member according to the unevenness of the slope, And a step of injecting a filler into the inside of the working member. When carrying out this method, as a method of pressing the pressure receiving plate against the slope to fix it, a conventionally known method, for example, a method of fixing using an anchor can be used.

According to the structure described in claim 6, perfect contact between the pressure receiving plate and the slope can be economically achieved by a relatively simple operation.

[0015]

DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

1 to 5 are views for explaining the main part of one embodiment of the backfilling method according to the present invention. In this embodiment, the pressure receiving plate is pressed against and fixed to the slope to stabilize the slope. First, as shown in FIG. 1, the anchor 2 is attached to the natural ground by a known method. Next, at a predetermined position on the slope 1 of the natural ground, the back-filling member 3 having a shape conforming to the back surface shape of the pressure receiving plate 4 or a shape conforming to the back surface shape is installed, and the pressure receiving plate 4 is mounted thereon. Put. Alternatively, the back-filling member 3 may be attached to the bottom surface of the pressure receiving plate 4 in advance, and the pressure receiving plate may be arranged at a predetermined position on the slope. Next, the tip end of the anchor 2 is passed through the through hole 3a of the pressure receiving plate 4 to be coupled to a known anchor head unit 5, and this anchor head unit is operated to press the backfilling member 3 against the slope 1.

The back-filling member 3 is made of a non-woven fabric or the like having a shape similar to that of the pressure-receiving plate 4, and is a deformable packaging bag 11 having air permeability.
A deformable porous material 12 such as sponge, urethane foam, and pulp is housed inside. Pressure receiving plate 4
However, in the case of a cross shape as shown in FIG. 2, the back-filling member 3 has a cross shape of substantially the same size as the pressure receiving plate 4 having the through hole 3a of the anchor 2 as shown in FIG. . Alternatively, instead of forming the cross shape as a whole, the divided piece may have a size corresponding to each arm 4a of the pressure receiving plate 4.

The porous substance 12 is shown in FIG. 1 as containing a large number of fragments, but it may be a single substance. Further, a porous material fragment having a high permeability or permeability of the filler and a porous material fragment having a high retaining ability of the filler may be mixed. Alternatively, porous materials having respective properties may be formed in a plate shape instead of a piece, and these may be combined in a layer shape.

The backfilling member 3 arranged as described above is
Between the pressure receiving plate 4 and the slope 1, it is deformed to fit the unevenness of the slope 1. A filling material, for example, cement milk 13, is filled in the packaging bag 11 of the backfilling member 3 in such a state. The filling material 13 permeates the porous material 12 in the packaging bag 11 and is retained therein. In addition, when filling the filling material 13, for example, it is injected from arbitrary plural points of the packaging bag 11 through the injection nozzle. This injection may be performed by inserting the injection nozzle into an appropriate portion of the packaging bag and then through the injection nozzle thus inserted.

After the filler 13 is solidified, the anchor head unit 2 is operated to finally tighten and fix the pressure receiving plate 4 to the inclined surface 1. FIG. 4 is a perspective view of the pressure receiving plate 4 fixed as described above, and FIG. 5 is A-A in FIG.
It is what shows a line sectional view, respectively. In FIG. 4, reference numeral 15 indicates a cap that covers the anchor head portion.

According to this embodiment, the slope 1 and the pressure receiving plate 4 are
The backfilling member 3 is installed between the backfilling member 3 and
As shown in FIG. 5, the cement milk 13 is filled in the inside, and the pressure receiving plate 4 is fixed to the slope 1 after solidification. As shown in FIG. 5, the pressure receiving plate 4 is securely fixed to the slope 1 through the cement milk 13 solidified. Can be adhered to. The backfilling member 3 can be made simple and inexpensive simply by storing the porous substance 12 in the packaging bag 11.

When the backfilling member 3 is filled with the cement milk 13, the action of the packaging bag 11 causes the cement milk 13 to fill.
Are permeated and retained in the entire porous substance 12,
Exudation to the outside is prevented. The cement milk is evenly absorbed and held by the porous substance 12 in the packaging bag 11 below the pressure receiving plate, and since the packaging bag is deformed into a shape following the unevenness of the slope, after the cement milk solidifies. The bottom surface of the pressure receiving plate and the inclined surface are completely in contact with each other via the backfilling member 3. Since the cement milk does not leak to the surroundings, the vicinity of the work site is not polluted and the waste of the cement milk 13 can be prevented.

It should be noted that the present invention is not limited to the above-described embodiment, and many modifications and variations are possible. For example, in the above-described embodiment, the pressure receiving plate having a cross shape is used, but the present invention can be effectively applied to the case where another pressure receiving plate is used. Further, the back-filling member is not limited to the integral shape similar to the pressure receiving plate, but may be divided into a plurality of parts. For example,
When a cross-shaped pressure receiving plate is used as in the above-described embodiment, four bag-filling backfilling members may be installed corresponding to the four sides of the cross. Further, the present invention can be effectively applied not only to the stabilization of the slope described above but also to the reinforcement of the retaining wall.

[0024]

As described above, the backfilling member according to the present invention only accommodates the compressible deformable substance capable of impregnating and holding the filler in the deformable packaging bag having air permeability. Therefore, an effective backfilling member can be easily manufactured at low cost.

Further, according to the backfilling method according to the present invention, between the pressure receiving plate surface and the inclined surface, a breathable material containing a compressible and deformable substance capable of impregnating and holding a filler, for example, a porous substance is contained. A bag-shaped deformable backfilling member having a filling material, for example cement milk, is filled in the backfilling member, and the filling material is solidified to adhere the pressure receiving plate to the slope. Therefore, the pressure receiving plate and the slope can be easily and reliably brought into close contact with each other, and the required minimum amount of cement milk can be used for work without contaminating the vicinity of the work site.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an embodiment of a backfilling method according to the present invention.

FIG. 2 is a plan view of the pressure receiving plate shown in FIG.

3 is a plan view of the backfilling member shown in FIG. 1. FIG.

FIG. 4 is a perspective view showing an installed state of the pressure receiving plate shown in FIG.

5 is a cross-sectional view taken along the line AA in FIG.

[Explanation of symbols]

1 slope 2 anchor 3 Backfill material 4 Pressure plate 5 Anchor head unit 11 sachets 12 Porous substance 13 Filling material (cement milk) 15 caps

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shinkichi Ooka             1-15-23 Horinouchi, Suginami-ku, Tokyo (72) Inventor Masahiro Okazaki             2-12-2-502 Sakainancho, Musashino City, Tokyo (72) Inventor Zhang Manra             7-21-20-602 Nakakasai, Edogawa-ku, Tokyo F-term (reference) 2D044 DB51 DB52 EA01

Claims (6)

[Claims] 1. A backfill that is inserted between the slope and the pressure receiving plate when the pressure receiving plate is pressed against and fixed to the slope to stabilize the slope and increases the degree of adhesion between the two. And a deformable packaging material made of a material substantially permeable to air, and a compressible and deformable substance contained in the packaging material and capable of impregnating and holding a filler. A member for back-filling. 2. The backfilling member according to claim 1, wherein
A backfilling member, wherein the compressible-deformable material is a porous material. 3. The backfilling member according to claim 2, wherein
A backfilling member, wherein the porous material is composed of a plurality of porous fragments. 4. The backfilling member according to claim 1, wherein the packaging bag is made of a non-woven fabric. 5. The backfilling member according to claim 2, wherein the porous material is formed of sponge, urethane foam, or pulp product. 6. A back-filling member for increasing the degree of adhesion between the slope and the pressure receiving plate when the pressure receiving plate is pressed against and fixed to the slope to stabilize the slope. In the backfilling method of inserting, between the pressure receiving plate and the slope,
The step of installing a deformable backfilling member in the form of a packet containing substantially air-permeable material containing a compressible deformable substance capable of impregnating and holding a filler, and backfilling with a pressure receiving plate A backfilling method comprising: a step of compressing the backfilling member to deform the backfilling member along the unevenness of the slope; and a step of injecting a filler into the backfilling member.