JP3901633B2 - Backfilling member installed under pressure-receiving plate for stabilizing slope and backfilling method using this backfilling member - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In order to stabilize, for example, a slope of a mountain along a road or a railway, a slope formed by cutting a natural ground, a retaining wall (hereinafter collectively referred to as a slope), the pressure receiving plate or the bearing plate is attached to 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 the two and the backfilling method using the backfilling member.
[0002]
[Prior art]
Conventionally, when pressing the pressure plate against an inclined surface using an anchor, etc., if there is irregularity on the inclined surface that the pressure receiving plate is in contact with, the pressure receiving plate will not be able to exert a sufficient effect because the stress is not even. For this reason, when there are irregularities like this, the pressure receiving plate is attached after the work of placing the mortar on the slope and flattening it.
[0003]
[Problems to be solved by the invention]
However, the work of flattening with mortar is cumbersome and difficult to flatten to such an extent that the entire lower surface of the pressure receiving plate is in close contact.
[0004]
As a method for solving such a problem, for example, a sponge is disposed between the pressure receiving plate and the inclined surface, and a filler, for example, cement milk is infiltrated into the sponge to be solidified, and the pressure receiving plate is adhered to the inclined surface. Proposed. However, in this case, when the filler is infiltrated into the sponge, the filler is easy to flow in the lower direction due to its own weight, and the filler cannot be uniformly infiltrated and held throughout the sponge. In addition, there is a problem that the adhesion between the surface and the slope cannot be sufficiently obtained, and a problem that the vicinity of the work site is soiled by the protruding filler.
[0005]
This invention was made paying attention to the above-mentioned conventional problems, and the filler is uniformly held on the lower side of the pressure receiving plate according to the unevenness of the slope, and after the filler is solidified, An object of the present invention is to provide a back-filling member that enables the slope to be in close contact with the entire surface under the presence of a filler, and to provide an effective back-filling method using the back-filling member. To do.
[0006]
[Means for Solving the Problems]
In order 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 the slope and fixed, it is inserted between the slope and the pressure receiving plate, A backfilling member having a sachet filled with a fluid filler to be solidified and increasing the degree of adhesion between the pressure receiving plate and the inclined surface by solidification of the filler , the fluid filler is a cement milk or a resin, the tare is substantially transmits only the air, which is produced in the cement milk or deformable material exudation little resin, the tare, the cement It is characterized by containing a compressible and deformable porous material that can be impregnated with milk or resin .
[0007]
In the present invention, backfilling includes not only the case where the backfilling member is disposed over the entire lower surface of the pressure receiving plate, but also a part of the backfilling member. The present invention can be applied to pressure plates having various shapes such as a cross shape and a polygon shape that have already been proposed, and various materials such as PS concrete and steel. The wrapping bag may be an integrated object having a contour shape conforming to the bottom surface shape of the pressure receiving plate, or a plurality of wrapping bags arranged side by side with the bottom surface shape of the pressure receiving plate. . Further, in the present invention, the filler means a fluid that can enter into a narrow gap, a small hole or the like and can solidify with time, such as cement milk or resin.
[0008]
When the backfilling member configured as described above is arranged between the pressure receiving plate and the inclined surface and compressed by the pressure receiving plate, the backfilling member is deformed to fit the unevenness of the inclined surface. When the filling material is injected into the filling member, the packing bag is made of a material that is substantially permeable to air, so that the filling material hardly oozes out of the back filling member and can be compressed and deformed. It penetrates the entire interior uniformly and solidifies as it is. Therefore, the pressure receiving plate comes into close contact with the above-mentioned slope through the solidified filler. And since the filler hardly oozes out of the sachet, the vicinity of the work site is not soiled and the amount of the filler is minimized. In addition, since such a backfilling member can be configured simply by containing a porous substance in a wrapping bag, there is an advantage that it can be easily and inexpensively.
[0010]
The invention according to claim 2 is characterized in that the porous substance is composed of a plurality of porous fragments. By configuring in this way, the work of storing the porous material in the wrapping bag becomes easy, and the porous material that has become a waste material in various fields can be reused as a piece, and further in any shape. Since the porous piece can be used, the backfilling member can be manufactured at low cost.
[0011]
The invention described in claim 3 is characterized in that the sachet is formed of a nonwoven fabric. With this configuration, when the filler is injected into the wrapping bag, the air in the wrapping bag is pushed out because of the breathability of the nonwoven fabric, but the leaching of cement milk or resin is prevented.
[0012]
The invention described in claim 4 is characterized in that the porous substance is formed of sponge, foamed urethane or pulp product. Porous sponge, foamed urethane and pulp products have good absorbability of cement milk or resin , are inexpensive, and waste materials are easily available.
[0013]
In order to stabilize the slope, the invention according to claim 5 is for backfilling that increases the degree of adhesion between the slope and the pressure plate when the pressure plate is pressed against the slope and fixed. in interpolating backfilling method between the members, between the pressure receiving plate and the inclined surface, substantially housing the compression deformable porous material which can be impregnated holding the flowable cement milk or a resin hardened with time in the step of placing only the transmitted wrapper shaped deformable backfilling members made the cement milk or exudation of the resin little material air, compresses the member for backfill by the pressure receiving plate, back and having a step of deforming the member for rice following the concavo-convex slope, the step of internally inject the cement milk or a resin of the backfilling members. When this method is carried out, a conventionally known method, for example, a method using an anchor, can be used as a method for fixing the pressure receiving plate against the slope.
[0014]
According to the structure of Claim 5 , perfect adhesion | attachment between a pressure receiving plate and a slope can be achieved economically by a comparatively easy operation | work.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0016]
FIGS. 1-5 is a figure for demonstrating the principal part of one Embodiment of the backfilling construction method based on this invention. In this embodiment, a pressure receiving plate is pressed against a slope and fixed to stabilize the slope. First, as shown in FIG. 1, an anchor 2 is attached to a natural ground by a known method. Next, the backfilling member 3 is installed at a predetermined position on the slope 1 of the natural ground in a shape conforming to the back surface shape of the pressure receiving plate 4 or a shape conforming to the back surface shape, and the pressure receiving plate 4 is mounted thereon. Put. Instead of this, the backfilling member 3 may be attached to the bottom surface of the pressure receiving plate 4 in advance, and the pressure receiving plate may be disposed at a predetermined location on the slope. Next, the tip of the anchor 2 is passed through the through-hole 3a of the pressure receiving plate 4 to be connected to a known anchor head unit 5, and the anchor head unit is operated to press the backfilling member 3 against the inclined surface 1.
[0017]
The backfilling member 3 houses a deformable porous material 12 such as sponge, foamed urethane, pulp, etc. in a deformable bag 11 having air permeability such as a nonwoven fabric having a shape similar to the pressure receiving plate 4. Configured. In the case where the pressure receiving plate 4 has a cross shape as shown in FIG. 2, the backfilling member 3 is a cross having the same size as the pressure receiving plate 4 having the through holes 3a of the anchor 2 as shown in FIG. Shape. Alternatively, the entire shape may not be a cross shape, but may be divided pieces having a size corresponding to each arm 4 a of the pressure receiving plate 4.
[0018]
The porous material 12 shown in FIG. 1 contains a large number of piece-like materials, but may be an integrated material. Further, a porous material fragment having good permeability or permeability of the filler may be mixed with a porous material fragment having a high retention capacity of the filler. Alternatively, porous materials having respective properties may be formed in a plate shape instead of a piece, and these may be combined in layers.
[0019]
The backfilling member 3 arranged as described above is deformed between the pressure receiving plate 4 and the slope 1 so as to fit the unevenness of the slope 1. A filler, for example, cement milk 13 is filled in the wrapping bag 11 of the backfilling member 3 in such a state. The filler 13 penetrates into the porous material 12 in the bag 11 and is held by this. In addition, in filling of this filler 13, it inject | pours through the injection | pouring nozzle from arbitrary several places of the bag 11, for example. This injection may be performed through an injection nozzle that is inserted into an appropriate portion of the sachet with the injection nozzle and thus pierced.
[0020]
After the filler 13 is solidified, the anchor head unit 2 is operated to finally tighten the pressure receiving plate 4 against the slope 1 and fix it. FIG. 4 is a perspective view of the pressure receiving plate 4 fixed as described above, and FIG. 5 is a sectional view taken along line AA in FIG. In FIG. 4, reference numeral 15 denotes a cap that covers the anchor head portion.
[0021]
According to this embodiment, the backfilling member 3 is installed between the slope 1 and the pressure receiving plate 4, the backfilling member 3 is filled with the cement milk 13, and after the solidification thereof, the pressure receiving plate 4 is attached to the slope 1. As shown in FIG. 5, the pressure receiving plate 4 can be reliably brought into close contact with the inclined surface 1 through the cemented milk 13 solidified.
The backfilling member 3 can be easily and inexpensively simply by storing the porous material 12 in the wrapping bag 11.
[0022]
When the backfilling member 3 is filled with the cement milk 13, the cement milk 13 penetrates and is held by the whole of the porous material 12 by the action of the bag 11, and exudation to the outside of the bag 11 is prevented. . The cement milk is evenly absorbed and held by the porous material 12 in the wrapping bag 11 below the pressure plate, and the wrapping bag is deformed into a shape following the unevenness of the inclined surface. The bottom surface of the pressure receiving plate and the slope are in close contact with each other through the backfilling member 3. Since the cement milk does not leak to the surroundings, the vicinity of the work site is not soiled and the waste of the cement milk 13 can be prevented.
[0023]
In addition, this invention is not limited only to embodiment mentioned above, Many changes or deformation | transformation are possible. For example, in the above-described embodiment, a cross-shaped member is used as the pressure receiving plate. However, the present invention can be effectively applied to the case of using another shape. Further, the backfilling member is not limited to an integrated shape similar to the pressure receiving plate, and can 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 wrapping-shaped back-filling members may be installed corresponding to the four sides of the cross shape. Furthermore, the present invention is not limited to the stabilization of the slope described above, but can also be effectively applied to the reinforcement of the retaining wall.
[0024]
【The invention's effect】
As described above, the backfilling member according to the present invention is effective only by containing a compressible and deformable substance capable of impregnating and holding a filler in a deformable bag having air permeability. The backfilling member can be manufactured easily and inexpensively.
[0025]
Further, according to the backfilling method according to the present invention, a breathable package containing a compressible and deformable material capable of impregnating and holding a filler, for example, a porous material, between the pressure plate surface and the inclined surface. Since a bag-like deformable backfilling member is installed, a filler such as cement milk is filled in the backfilling member, the filler is solidified, and the pressure receiving plate is closely attached to the slope. The pressure receiving plate and the inclined surface can be easily and reliably adhered to each other, and the work can be performed with the minimum amount of cement milk without polluting the vicinity of the work site.
[Brief description of the drawings]
FIG. 1 is a view 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.
4 is a perspective view showing an installation state of the pressure receiving plate shown in FIG. 1. FIG.
FIG. 5 is a cross-sectional view taken along line AA in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Slope 2 Anchor 3 Backfilling member 4 Pressure receiving plate 5 Anchor head unit 11 Packing bag 12 Porous substance 13 Filler (cement milk)
15 cap

Claims (5)

In order to stabilize the slope, there is a wrapping bag that is inserted between the slope and the pressure receiving plate and injected with a fluid filler that solidifies over time when the pressure receiving plate is pressed against the slope and fixed. And a backfilling member that increases the degree of adhesion between the pressure receiving plate and the inclined surface by solidifying the filler,
The flowable filler is cement milk or resin,
The sachet is made of a deformable material that is substantially permeable only to air and has little leaching of the cement milk or resin ;
The sachet contains a compressible and deformable porous material that can impregnate and hold the cement milk or resin .
A backfilling member characterized by the above. 2. The backfilling member according to claim 1 , wherein the porous substance is composed of a plurality of porous fragments. The backfilling member according to claim 1 or 2, wherein the wrapping bag is formed of a nonwoven fabric. The backfilling member according to any one of claims 1 to 3 , wherein the porous substance is formed of a sponge, urethane foam, or a pulp product. In order to stabilize the slope, a backfilling method that inserts a backfilling member that increases the degree of adhesion between the slope and the pressure receiving plate when the pressure receiving plate is pressed against the slope and fixed. In
Between the pressure receiving plate and the inclined surface, fluid cement milk that solidifies with time or a porous material that is compressible and deformable that can be impregnated and retained with resin, is substantially permeable to air, and the cement milk or Installing a deformable backfilling member in the form of a sachet made of a material with almost no resin leaching; and
A step of compressing the backfilling member with the pressure receiving plate and deforming the backfilling member following the unevenness of the slope;
And a step of injecting the cement milk or resin into the inside of the backfilling member.

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