JP2002317600A - Natural ground displacement restricting work using ventilating and moisture permeable housing body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a relatively easily and stably restricting a unified natural ground displacement restricting works capable of preventing the dangers related to the works for restricting the displacement under the conditions where unstable face of slope is formed and the present dangerousness of rupture becomes high due to the displacement of natural ground caused by stress change in internal natural ground accompanied with the excavation of a tunnel or a shaft, permeation of rain water on the face of slope or a sloped surface or the formation of unstable face of slope where the natural ground displacement or the present stability cannot be maintained any more. SOLUTION: Natural ground displacement restricting work by ventilating and moisture permeable housing body featuring the housing of the mixture of foamed resin granular body and caking kneaded materials in a ventilating and moisture permeable housing body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a ground displacement caused by a stress change in an internal ground due to excavation of a tunnel or a shaft, a permeation of rainwater on a slope or a slope, a ground displacement caused by weathering and erosion, or a stable current state. An unstable slope that could not maintain the property is formed, relates to construction that suppresses its displacement under conditions where the risk of collapse has increased, and prevents the risk as described above An object of the present invention is to provide a relatively simple and stable integrated ground displacement suppressing construction and a method for forming the same.

[0002]

2. Description of the Related Art Integrated ground displacement suppression works for slopes, tunnel inner surfaces, and the like are indispensable works, and various methods have conventionally been employed. For example, when excavating a tunnel having an upper half section in an arc shape, a support is used in which an H-shaped steel is bent in an arc shape. However, since this support is built inside the ground of the excavated tunnel, the support is used. There is always a gap between the ground and the ground, and this gap can be suppressed to about 50 to 100 mm in a tunnel with good excavation, but it may reach several hundred mm to almost 1 m in a easily collapsed ground. is there. Also, in order to maintain such a mountain,
In some cases, shotcrete, rock bolts, or the like may be used as a support or in combination therewith.

[0003] The supporting pressure or displacement for holding the inner surface of the tunnel after excavation generally changes depending on the deformation characteristics of the ground after excavation, and in the elastic ground, the supporting pressure immediately after excavation decreases in a short time. It becomes zero state. Such grounds are stable, and there is not much to use shoring or rock bolts.On the other hand, in plastically deformed grounds, even if the supporting pressure immediately after excavation gradually decreases, it continues for a considerable period of time. However, tunnel displacement continues for a long period of time, and ground separation and collapse continue.Therefore, it is required to install support and rock bolts etc. in such ground early to minimize peeling and collapse. You.

[0004] The behavior of the tunnel after excavation requires support in the upward direction from the center of the tunnel, while displacement occurs in the left and right directions. To suppress these, it is necessary to use steel supports to suppress them. It is necessary and general, and it is necessary to perform a certain degree of protection suppression even in slope protection works.

[0005] In addition, a slope formed by excavating a stratum or depositing earth and sand on a foundation maintains the form of the sedimentary layer.
It is necessary to secure and maintain such slope by using vegetation or stabilizing and consolidating at least the surface part using a coagulable material or a step forming material such as cobblestone. Method is adopted.

[0006] It is known that foam mortar is used as a material for preventing deformation or damage of the inner surface or slope of the tunnel as described above, and is usually made by adding and kneading a foaming agent to Portland cement or the like, and is bulky ( Lightweight concrete is being formed and is being adopted as a material that contributes to stabilization of the tunnel inner surface or slope.

[0007]

In the above-mentioned prior art, the formed surface is not always stable not only on the inner surface of the tunnel but also on the slope. In other words, in tunnels, shafts, etc., stress changes in the internal ground due to excavation are inevitable, and the current stability is maintained on slopes and slopes due to the displacement of the ground due to rainwater penetration, weathering, erosion, etc. Can form an unstable slope, increasing the risk of collapse. Therefore, as described above, various technologies have been proposed and developed for preventing collapse and deformation of the inner surface of the tunnel and the slopes, but are not necessarily preferable in terms of workability and stability. I can't get it.

[0008] That is, it is clear that the above-mentioned method conventionally employed for slope protection is not always easy to perform, and requires considerable man-hours and time. If a protection work is formed, it is not easy to modify it, and there is a disadvantage that it requires at least more man-hours and time than the time of the first construction.

[0009] Immediately after excavation, the tunnel receives ground pressure.
Displaced with time, a relaxed state like the surface of the stratum occurred, collapse occurred while formation of supports etc. was not obtained,
Over time, the displacement and relaxation expand and cause collapse. Therefore, it is necessary to form an appropriate protective work early after excavation, and furthermore, to maintain such an elastic ground, it is necessary to use a tie-up material for the surrounding ground together with the support after excavation. However, since such a connecting material is performed manually, it is inferior in workability and cannot be rapidly constructed. Further, safety and smoothness of work are hardly required, and there is a disadvantage that effective and appropriate work or construction cannot be performed under the above-mentioned conditions in any aspect.

The sheet pile is made of wood or steel, and is driven into a gap between the support and the ground with a hammer or the like to fill the gap.
The sheet pile itself is usually heavy, especially steel, which has high strength, is quite heavy and therefore inferior in handling, causing damage to the ground, causing partial collapse and peeling, and dropping of the sheet pile. Due to other dangers, it is difficult to insert them into a plurality of places at the same time, which is disadvantageous in that the work is not quick, and the load tends to be uneven or the ground is damaged.

The foam mortar is made by adding a foaming agent to the mortar to make the mortar bulky. The bulkiness of the mortar contributes to the prevention of collapse of the inner surface and the slope of the tunnel. The compressive strength obtained in relation to the pumpability, the weight of the molded body or the state of bagging for preventing collapse is not always sufficient, and the bulky mortar is easily reduced when a pressing force acts. Therefore, the intended disintegration prevention action cannot always be made appropriate.

[0012] Further, the site of the above-mentioned construction in the tunnel and the slope construction is often geographically located at a position slightly away from a position where the construction equipment such as a vehicle is carried, and is pumped by a pump or the like carried to a predetermined position. The mortar or concrete blasting material mixed with gravel and the like appropriately together with the sand as described above has a considerable weight, and the blasting material has a considerable weight, exceeding several hundred meters, and in some cases, 2 to 3 km.
Alternatively, it is unavoidable that it is difficult to perform the spraying by pumping to a considerably long distance to reach more than that, the construction range is limited on site, and it is difficult to secure appropriate workability.

[0013] In the storage or transportation of various articles or perishable foods today, molding materials such as styrofoam are widely used to prevent and protect the articles from damage and deterioration. When these molding materials are used once and arrive at the destination, they are usually discarded as they have achieved their intended purpose, and most of them are collected and reused. Absent. Therefore, in such a case, the amount of waste is considerably large, and since it becomes particularly bulky, it is difficult to return the molded material to the user side by a vehicle or the like for reuse even if the weight is small. It is well known that it is in a practically impossible state because it requires a considerable return cost, and is left undisturbed in an open space or the like, causing a pollution problem.

Further, it is inevitable that the above-mentioned shock-absorbing material made of foamed polystyrene or polyethylene foam will generate a rejected material when it is manufactured by using a mold. The function, deterioration or damage cannot be properly prevented, and it is practically impossible to correct it. In addition, these materials are synthetic resin materials, which generate a large amount of heat even when incinerated and generate a large amount of smoke. Therefore, sufficient consideration must be given to the incineration equipment and method, and special treatment costs are often required. Further, this styrofoam and the like have a similar processing problem since a large amount of large-sized molding material is generated from various event venues and the like after a temporary use as a material that can easily form a large-sized member.

[0015]

SUMMARY OF THE INVENTION The present invention has been studied to solve the problems in the prior art as described above, and uses a fibrous woven material and a foamed resin granular material, which is used as an aggregate. By mixing and combining them in a favorable state, it is possible to secure the stability of the formed construction together with the ease of construction having both light weight and aggregate function, and succeeded in eliminating the above-mentioned causes of pollution And is as follows.

(1) A ground-vapour-permeable container and a ground resin displacement caused by a foamed resin particle, wherein a mixture of a foamed resin particle and a coagulable kneaded material is accommodated in the gas-pervious container. Restraint.

(2) A gas-permeable and moisture-permeable container characterized in that a mixture of a foamed resin particulate material, a mineral fiber material and a coagulable kneaded material is accommodated in the gas-permeable and gas-permeable container and set and hardened. Ground displacement control using foamed resin granules.

(3) The air-permeable and moisture-permeable container is formed in a bag shape, and the kneaded material obtained by combining the foamed resin granules and the coagulable kneaded material is formed integrally with the air-permeable and moisture-permeable container. Ground displacement control using a breathable moisture-permeable container and foamed resin granules.

(4) The gas-permeable and moisture-permeable container forms a state in which the gas-permeable and moisture-permeable container is at least partially fixed to the base layer by the fixing means, and the mixture of the foamed resin granules and the coagulable kneaded material is contained in the gas-permeable and gas-permeable container. (1) to (3), wherein the air-permeable and moisture-permeable container and the foamed resin granule are used to suppress ground displacement.

(5) An injection port is formed in the bag-shaped ventilated and vapor-permeable container, and a mixture of the foamed resin granules and the coagulable kneaded material by means of a pumping means is injected and molded from the injection port to be integrated. Ground displacement control using a breathable breathable container and foamed resin granules.

(6) The ground displacement suppressing method using the ventilated moisture-permeable container and the foamed resin particles according to any one of the above items (1) to (5), wherein a square coating is formed. .

(7) The above-mentioned (1), characterized in that a coating work including a backfill material for the tunnel is formed on the inner surface or outer surface of the tunnel or shaft and the displacement due to a stress change in the inner ground due to excavation is prevented. (6) A ground displacement suppressing method using the gas-permeable and air-permeable container according to any one of (1) to (6) and a foamed resin granule.

(8) The air-permeable and moisture-permeable material as described in any one of (1) to (7) above, wherein the coagulable kneaded material is a hydraulic substance powder such as cement or gypsum. Ground displacement control using a container and foamed resin granules.

(9) The foamed resin particles have a diameter of 55 mm or less,
In particular, the ground displacement suppression method using the ventilated moisture-permeable container and the foamed resin particles according to any one of the above items (1) to (8), wherein the particle mixture is a particle mixture of 45 mm or less.

(10) The air-permeable and moisture-permeable container is set at the construction site, and a kneading material of the foamed resin granules and the coagulable kneaded material is injected into the set air-permeable and moisture-permeable container by the pressure feeding means at the construction site. A method for forming a ground displacement control method using a breathable moisture-permeable container and a foamed resin particulate material, characterized in that:

(11) A supporting structure is provided on the inner surface of the tunnel or the shaft, and a bag-shaped ventilated and vapor-permeable container having an inlet in a gap between the supporting structure and the inner surface of the tunnel or the shaft and having a closed entrance. Forming a kneading material of a foamed resin granule and a coagulable kneaded material by a pumping means from the injection port, and forming a ground displacement suppressing work by a breathable moisture-permeable container and a foamed resin granule. Method.

According to the present invention as described above, the air-permeable and moisture-permeable coating is obtained by combining a mixture of the foamed resin granules and the coagulable kneaded material with a coating material having at least partially a moisture-permeable and air-permeable material such as fibrous material. The material and the foamed resin granules are compositely integrated with the coagulable kneaded material, and the kneaded material is reduced in weight by the foamed resin granules mixed into the coagulable kneaded material to obtain preferable transportability or workability, and Ground displacement suppressing work with strength by appropriate aggregate function is formed, fibrous coating material secures integration or formability as a whole ground displacement suppressing work, and foamed resin granules are kneaded. The size of the control work was increased while reducing the weight of the object, and the workability or workability under long-distance conditions of several hundred meters or more was remarkably improved, especially by improving the workability performed according to the spraying method. Smooth Working allowed early, to allow installation in a short time. As the coagulable kneaded material, a hydraulic material powder such as cement or the like can be employed, whereby the whole is integrated and coagulated, and a stable and preferable ground displacement suppressing action can be formed within a short time.

[0028] The mixture of the foamed resin granules, the mineral fiber material and the coagulable kneaded material is accommodated in the ventilated and moisture-permeable container, and the mixture is set and hardened. It becomes a body.

Even if the fibrous coating material or the like is in the form of a film, it is possible to appropriately adopt a state suitable for enclosing a molded product obtained by combining the foamed resin granules and the coagulable kneaded material in an appropriate form. In addition, when the covering material is formed in a bag shape, a kneaded material obtained by combining a foamed resin granule and a coagulable kneaded material is blown in automatically and a number of times is ensured. It is possible to form efficiently and smoothly under the condition of taking a long distance of 100m or more, and to form an integrated molded body accurately. Automatically and instantaneously obtain moldings.

In particular, a container formed of a fibrous covering material or the like is formed in a bag shape, and a kneaded product obtained by combining a foamed resin granule and a coagulable kneaded material is filled and formed to ensure the integration of both materials. The present invention provides an integrated molded body that can obtain a body, and can obtain handling and loading substantially accurately, and obtains the molded body suitable for cargo handling and accumulation, and provides an effective ground displacement suppression work.

The air-permeable and moisture-permeable bag made of a fibrous covering material or the like forms a state where it is partially fixed to the base layer by the fixing means, and the foamed resin granule and the coagulable kneaded material are combined. The constructed ground displacement control works are firmly established on the ground foundation.

Further, according to the present invention, an inlet is formed in a fibrous coating material which is formed in a bag shape by closing an inlet / outlet, and a mixture of a foamed resin granule and a coagulable kneaded material is injected by a pressurizing means. As a result, the foamed resin granules are stably filled with the preferred denseness with respect to the gas-permeable and moisture-permeable covering material by a simple and efficient method using the pumping means, thereby forming the desired ground displacement suppressing work.

By forming the slope coating with the integrated ground displacement suppressing technique as described above, an easy and accurate slope coating can be formed easily and accurately within a short time. In the conventional pumping of foam mortar, the amount of foam deviated is large, and it is difficult to obtain the accuracy as in the present invention.

The tunnel or vertical shaft inner surface coating is formed by the above-mentioned ground displacement suppressing work so that the inner surface of the tunnel or vertical shaft can be formed relatively easily and accurately. Can be formed easily and effectively, and the surface strength is secured by a fibrous covering material and the like, and the lightness is obtained by the foamed resin granules, so that the possibility of breakage is greatly reduced.

Further, according to the present invention, there is provided a bag-like fiber in which a support is provided on the inner surface of a tunnel or a shaft, and an inlet is provided in a gap between the support and the inner surface of the tunnel or the shaft and an entrance is closed. By setting the porous coating material and injecting and kneading the kneaded material of the foamed resin granules and the coagulable kneaded material by the pumping means from the injection port, the ground displacement suppression work by the fibrous coating material and the foamed resin granules is simple and easy. It is formed in tunnels and shafts that are efficiently stable.

Since the coagulable kneaded material is a hydraulic substance such as cement or gypsum, it has an affinity for a general concrete structure and can be appropriately integrated into a ground displacement suppressing work. Is provided.

[0037]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention as described above will be described with reference to the accompanying drawings as appropriate. The present invention typically comprises a breathable moisture-permeable coating such as a fibrous material. The present invention proposes a ground displacement suppressing construction as shown in the figure, in which a tissue material is employed and a mixture of a foamed resin granule and a coagulable kneaded material is combined with the tissue material and integrated.

That is, as the above-mentioned breathable and permeable tissue material, 1
As an example, a fibrous covering material 1 as shown in FIG.
That is, a woven or knitted cloth material, or an irregular interwoven fiber tissue covering material is used as the material. The woven covering material is generally a woven material by a loom using a thread-like material, and the knitted cloth material is a cloth piece knitted by using a knitting machine using the same thread or linear material. As for the coating material, the irregular cross-fiber structure material is further dispersed and dispersed in a random and uniform fiber layer with a binder to coagulate and coagulate the respective fiber intersections to form an integral coating. It is a material that binds the whole material and is made into a covering material state without the need for weaving or knitting treatment, and it can be effectively adopted even if it is a paper material, Even a film material can be employed in the same manner by perforating to obtain a gas-permeable moisture permeability.

Regardless of any of the above-mentioned coating materials, the breathable and breathable coating material according to the present invention is typically a fibrous coating material, and may be a woven or knitted cloth-like material or a cross-fiber tissue material. As shown in FIG. 1 or FIG. 2, it is a planar material 1 having a predetermined thickness, and generally has an appropriate thickness as a rectangular or other rectangular covering material 1 adapted to the intended use. In addition, it is prepared as a rectangular flat material having a certain size in the vertical and horizontal directions. It is clear that the woven or knitted cloth material is a material in which the fiber materials are woven or knitted with each other and bonded in a film shape under the condition of securing the air permeability and breathability, and it has a certain strength, The interspersed fiber structure material also has a structure in which a binder is dispersed and added to a large number of planar fiber materials which are irregularly distributed and polymerized, and are bound at intersections with each other. A suitable fiber connection structure can be obtained at the intersection bonding part without depending on. That is, even if it is a simple disperse fiber structure obtained simply by having a structure in which the disperse-added binder is aggregated and bound at the intersections of the disperse fibers polymerized with each other, it is possible to form a thread, weave or knit. The connection strength according to the woven or knitted material after each step can be efficiently obtained at low cost.

In any case, the above-mentioned covering material 1 is a single-layered material as shown in FIG. 1. However, this covering material 1 is formed by folding the periphery of the covering material 1 separately as shown in FIG. By sewn or glued to the peripheral edge portion 2 to form a reinforced coating material of the peripheral edge portion,
The thus formed laminated adhesive peripheral portion 2 can be used as the rectangular covering material 1 having an appropriate strength at the portion, excellent handling operability, and high durability.

Further, in the present invention, the above-mentioned rectangular covering material 1 is superimposed on two sheets and polymerized, or a rectangular covering material
The opposite peripheral edge that is folded and polymerized (or two coating materials are polymerized) and the peripheral edge at one end are joined to form a bag-like body, and the coagulability with the foamed resin granular material as described above is obtained. A ground-combination-inhibited construction in which the mixture obtained by compounding the kneaded materials is charged through the opening on the other end side and the openings are effectively closed by closing the opening can be easily formed. In other words, it is clear that the composite mixture 10 can be accommodated and processed even if the fibrous coating material 1 remains in a simple sheet form.
Is simply placed, and there is a tendency that the binding integrity with the coating material 1 is not always effectively obtained. On the other hand, the bag-shaped body is a composite mixture of the two coating materials 1, 1. 1
0 are integrally combined to improve the handling or workability. That is, in the case where the coating material 1 is integrated with the composite mixture 10 as a bag-like body in this manner, the composite mixture 10 is integrated as in the case of a single material, and the handling operability and workability are improved. it can.

As the form of the bag-like body as described above, a square, a rectangle, a triangle, a hexagon or the like can be appropriately selected. In some cases, the opening is covered on one side of the opening on one end. The opening can be easily closed after charging the composite mixture 10 as a stalk-shaped or envelope-shaped one having a protruding portion.

The above-mentioned bag-like bodies are connected to each other on the slopes and other planes according to the situation of each construction site, so that the bag-like bodies are connected to each other. It is clear that a series of setting work can be performed by mutually setting continuously according to the setting conditions in FIG.
By using the tubular bag-shaped body 3 as shown in FIG. FIG.
Although the cylindrical bag-shaped members 3 are arranged along the length direction of the excavation tunnel, the cylindrical bag-shaped members may be arranged so as to be orthogonal to the tunnel length direction.

That is, a plurality of tubular bags 3 are arranged at a predetermined interval along the length direction of the excavation tunnel, and a plurality of tubular supports 3 are continuously provided. By press-filling and filling the composite mixture 10 from the inlet 13, each bag 3 is enlarged and engaged with each support 14, and the space above the support 14 can be closed.

In the embodiment shown in FIG. 4, a fixing portion 21 is formed at each of the corners of the bag-like body, and an inlet 22 is formed at the opposite corner or the like.
At the target construction site, the material pumped from the on-vehicle tank is injected as a composite mixture 10 from the injection port 22 under the condition attached to a predetermined position by the fixing unit 21,
In FIG. 4, the state shown by the solid line is formed into an enlarged set state as shown by the virtual line. That is, it is set at the construction site as a lightweight simple bag-like body, and is efficiently filled using a pump at the base, so that stable construction can be performed accurately.

The attachment of the bag-like body as shown in FIGS. 3 and 4 at the construction site is performed by fixing an anchor shaft, a washer, a nut and the like to a mounting hole formed in an intermediate portion of the bag-like body. Is effectively fixed. A fixing unit such as a nut is secured to the anchor shaft by using a nut via a washer via a washer, so that a stable integration setting can be obtained using a covering material. A pressing portion having a wide pressure receiving area by forming an integral connecting plate-like portion formed by connecting and integrating the bottom surface of each pressing portion between the pressing portions branched in four directions as a three-direction or a cross shape. It is clear that a stable setting can be obtained.

The prevention of collapse caused by the voids formed on the outer surface of the excavated existing tunnel 30 is shown in FIG. 3 or a rectangular bag-like body having the same configuration as that shown separately in FIG. Using such a cylindrical bag 3a,
This is easily and quickly achieved by the method shown in FIG. That is, the cylindrical bag-like bodies 19 are appropriately arranged and filled in the voids formed outside the concrete 12 in the excavated existing tunnel 30 as appropriate.

That is, the mixture 1 is contained in the cylindrical bag-like body 19.
0 may be inserted, but preferably, a rectangular bag-shaped body 19 having an injection hole 22 is employed, and the length direction of the bag-shaped body 19 is appropriately positioned in a gap formed on the mountain side of the concrete 12. After that, the kneaded material kneaded from the injection port 43 or 22 is pumped and injected. In other words, the empty bag-like body is placed on the concrete
It can be easily inserted and set even in a narrow gap with the inner surface of the zero, and the kneaded material 10 pumped and fed into the bag-shaped body thus set is smoothly charged and filled even in the narrow gap. By filling the kneaded material in this way, the bag-like body 19 is effectively engaged with the concrete 12, and is also accurately engaged with the inner surface of the excavation tunnel 30, thereby providing a stable support. Form relationships. The fixing unit 21 facilitates the insertion and movement operation of the bag-shaped body as described above. At least a plurality of struts 12, 1
The bag-like body 19 which is located at No. 2 and is in a state in which the portion other than the joint with the support 12 is expanded due to the charging and filling of the kneaded material, the bag-like body 19 appropriately engages with each support 12 to achieve a stable support setting relationship. It is clear to form.

In the present invention, a cylindrical bag 6 as shown in FIG. 6 is separately employed, and the slope 8 as shown is appropriately set by an anchor 7 to protect the slope 8. Is also possible.

[0050]

According to the present invention as described above, foamed resin granules such as foamed polystyrene, foamed polyethylene or polypropylene, which can be obtained at a relatively low cost as waste, are used, and a coagulable kneaded material is blended with this. By using the mixture, it is possible to obtain a ground displacement suppressing work at a relatively low cost, and furthermore, the mixture is accommodated in a fibrous covering material and provided as an integrated material, so that the integration of the construction part can be achieved. As a result, a stable construction that secures integrity and solidification within a relatively short period of time is obtained for a ground with high collapse, etc. By pumping and pumping the water, it is possible to accurately perform long distance transfer construction,
Moreover, vegetation is possible in the porous structure of the foamed resin material granular material or the fibrous coating material, so that it is simple and effective and low cost. This is an invention with a great effect.

[Brief description of the drawings]

FIG. 1 is a partially omitted plan view showing an example of a fibrous covering material according to the present invention.

FIG. 2 is a partially omitted plan view of a fibrous covering material having a folded thick portion formed on a peripheral edge so as to obtain a stable setting relationship with reinforcement.

FIG. 3 is a partially cutaway perspective view of a tubular bag adopted by the present inventors.

FIG. 4 is a perspective view of a state where the tubular bag shown in FIG. 3 is applied to a tunnel support and an excavation hole.

FIG. 5 is a perspective view showing a state in which a bag-like body used to fill a void formed on the tunnel concrete mountain side is disposed.

FIG. 6 is an explanatory view showing a setting state of a bag-like body according to the present invention used for slope protection.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Square covering material 2 Lamination | adhesion peripheral part 3 Cylindrical bag-shaped body 3a Inlet 4 Opposite peripheral part 5 One end side peripheral part 6 Bag-shaped body 7 Anchor 8 Slope 9 Square-shaped bag-shaped body 10 Composite mixture 11 Branch type pressing part DESCRIPTION OF SYMBOLS 12 Shoring 13 Injection port 14 Shoring 15 Mounting part 16 Loading port 17 Nut 19 Rectangular bag-like body 20 Container 21 Fixing part 22 Injection port 30 Tunnel

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Mitsuhiro Tsunoda, Inventor 2638-202, Tsuruta-cho, Utsunomiya-shi, Tochigi (72) Inventor Isao 704-2 Tsuruta-cho, Utsunomiya, Tochigi C201 F-term (reference) 2D044 DC01 2D055 BB02 CA01 DA02 FB04 JA04 KB12

Claims (11)

[Claims] An air-permeable and moisture-permeable container containing a mixture of a foamed resin granule and a coagulable kneaded material is characterized in that the air-permeable and moisture-permeable container and the foamed resin particle suppress ground displacement. Mechanic. 2. A gas-permeable and gas-permeable container, wherein a mixture of a foamed resin particulate material, a mineral fiber material and a coagulable kneaded material is accommodated in a gas-permeable and gas-permeable container, and is subjected to setting and hardening. Ground displacement control using resin granules. 3. The air-permeable and moisture-permeable container is formed in a bag shape, and a kneaded product obtained by combining a foamed resin granule and a coagulable kneaded material is molded integrally with the air-permeable and moisture-permeable container. Ground displacement control using a breathable moisture-permeable container and foamed resin granules. 4. A state in which the gas-permeable and moisture-permeable container is at least partially fixed to the base layer by fixing means,
The air-permeable and moisture-permeable container according to any one of claims 1 to 3, wherein a mixture of the foamed resin granules and the coagulable kneaded material is covered with the air-permeable and moisture-permeable container. Ground displacement control using granular material. 5. An inlet is formed in a bag-shaped ventilated and vapor-permeable container, and a mixture of foamed resin granules and a coagulable kneaded material by a pumping means is injected from said inlet to be integrated. Ground displacement control using a breathable moisture-permeable container and foamed resin granules. 6. The ground displacement suppressing method according to any one of claims 1 to 5, wherein a rectangular coating is formed. 7. A coating method including a backfill material for a tunnel on an inner surface or an outer surface of a tunnel or a shaft to prevent displacement due to a stress change in an inner ground due to excavation. Ground displacement suppression work using the breathable moisture-permeable container and the foamed resin granule according to any one of the above. 8. The coagulable kneaded material is a powder of a hydraulic substance such as cement or gypsum.
A ground displacement suppressing method using the gas-permeable and air-permeable container according to any one of Items 1 to 7 and a foamed resin particle. 9. A foamed resin granule having a diameter of 55 mm or less, especially 4 mm or less.
9. The ground displacement suppressing method according to any one of claims 1 to 8, wherein the granular material mixture has a particle size of 5 mm or less. 10. A ventilated moisture-permeable container is set at a construction site, and a kneading material of foamed resin granules and a coagulable kneaded material by a pumping means is injected into the set ventilated moisture-permeable container at the construction site. A method for forming a ground displacement control method using a breathable moisture-permeable container and foamed resin granules characterized by the following. 11. A bag-shaped ventilated and permeable container having an inlet in a gap between the support and the inner surface of the tunnel or the pit, the inlet and the outlet being closed. A method for forming a ground displacement control method using a ventilated moisture-permeable container and foamed resin granules, comprising setting and kneading a kneaded material of foamed resin granules and coagulable kneaded material by means of a pumping means from the inlet. .