JP2700751B2 - Land surface consolidation method and consolidation material manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for solidifying a surface of land and an apparatus for manufacturing a solidification material used in the method.

[0002]

2. Description of the Related Art Conventionally, as a method for consolidating a land surface, a method in which a cement material is sprayed on the surface of the land and the cement material is solidified with water contained in the soil has been widely used. ing. However, when the cement material is sprayed on the surface of the land, the cement material may be scattered as dust by the wind or the like before being solidified by the moisture contained in the soil. Such a situation causes pollution, and it is necessary to prevent it. Therefore, today, a consolidation material which does not fly as dust is developed and sold in bags. This consolidation material is produced by mixing an appropriate amount of liquid material with a cement material. However, this ground consolidation material is sold at a high price because it uses a liquid material that does not solidify the cement material even when mixed with the cement material and stored for a long period of time. Therefore, if the consolidation was performed using such a conventional consolidation material,
Cost is high. In addition, if a prepackaged bag is brought to the site and used for each bag, an excess amount may be actually consumed, which is uneconomical. Under such circumstances, there is a long-awaited demand for a method capable of consolidating at low cost.

[0003]

DISCLOSURE OF THE INVENTION The present invention has been proposed in view of the above circumstances, and an object of the present invention is to provide a method and a material for solidification which can be carried out at low cost without scattering as dust. To provide a manufacturing apparatus.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems by providing a method of solidifying a ground having the following features. That is, the first invention of the present application is formed into a roughly wound coil shape.
The formed spring member 12 and the spring member 1
And a rotating shaft 3 inserted in the
A cement in which both ends of the material 12 are fixed to the rotating shaft 3 respectively.
The material transport mechanisms 3 and 12 are arranged in the cement material input chamber 1.
Then, the rotating shaft 3 of the cement material transport mechanisms 3 and 12 is rotated.
In this way, the cement material is
From the charging chamber 1 to the stirring chamber 2 and into the stirring chamber 2.
Spraying liquid material in a mist and stirring it
Compaction containing liquid matter of 10% by weight or less
While manufacturing the timber, these are successively
A method for solidifying the surface of a land, which is sprayed on the surface
I will provide a.

[0005] The present invention solves the above-mentioned problems by providing an apparatus for manufacturing a consolidation material having the following features. That is, the second invention of the present application is a cement material charging chamber 1.
And a stirring chamber 2 for stirring the liquid material and the cement material, and charging
Cement material transporting the cement material from the chamber 1 to the stirring chamber 2
Liquid transporting mechanism that transports the liquid to the stirring chamber 2 with the transport mechanisms 3 and 12
Mechanism 6 and the cement material transport mechanisms 3 and 12 are roughly wound.
A spring member 12 formed in a coil shape,
The rotation shaft 3 inserted into the ring member 12 and the input chamber 1
Inside of the spring member 12.
The ends of the rotating shaft 3 are fixed to the rotating shaft 3, respectively.
The cement material is rotated by the spring member 12 with the rotation.
The liquid material is transported to the stirring chamber 2, and the liquid material transport mechanism 6 is
The liquid material is sprayed into the stirring chamber 2 in an appropriate amount in the form of a mist.
The stirring chamber 2 is provided with an appropriate amount of liquid material and
While continuously stirring with the cement material
A land characterized by being able to exit
An apparatus for manufacturing a hardened material is provided.

[0006]

According to the present invention, first, a powdery consolidation material containing 10% by weight or less of a liquid material is obtained. At this time, since the compounding amount of the liquid material is small, approximately one pair of cement material and water is used. When the mortar is mixed in a normal mortar mixing method, the liquid material and a part of the cement are mixed and only part of the mortar becomes viscous, while most of the other cement remains in powder form. Will be. Therefore, by supplying the liquid material in the form of a mist and supplying it in a fine state as in the present invention, it is possible to mix the liquid material substantially uniformly with the entire cement. Therefore, the entire cement material can be formed into a powdery form that does not shatter and scatter as a dust, and a part of the cement material becomes mortar-like or remains powdery as described above. Can be prevented. And, since these are scattered on the surface of the land while obtaining the consolidation material as described above, it is not necessary to consider the preservation of the consolidation material. Therefore, for example, water can be used as a liquid material when producing the consolidation material, and it can be performed using a low-cost consolidation material. In addition, it can be carried out at the site while producing the consolidation material according to the required amount.

At this time, the cement material transport mechanisms 3 and 12
A spring member 12 formed in a coarse coil shape;
The rotating shaft 3 inserted into the spring member 12 is inserted.
The spring member 12 is arranged in the chamber 1.
Are fixed to the rotating shaft 3 so that the rotating shaft 3
With the rotation of 3, the cement material is
Is transferred to the stirring chamber 2
If the stirring chamber 2 is filled with the cement material, the cement material stays
When the spring member 12 feeds,
A load is applied to the ring member 12. When this load is applied,
As shown in FIG. 4, the right side of the pulling member 12 is contracted,
The part expands and elastically deforms, which causes the screw conveyor
(A) The amount of cement material to be sent to 41 is reduced. On the other hand,
When the cement material in the stirring chamber 2 starts to decrease, the load is
Spring member 12 will be restored by removing the load.
Of the loading chamber 1 due to the axial elasticity and rotational force
The material is guided to the stirring chamber 2. Thus, the rotating shaft 3
Necessary amount of cement material in the stirring chamber 2 without adjusting the rotation of
And the mixing ratio of the liquid material and the cement material
The rate can be maintained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the drawings. First, an apparatus for manufacturing a compaction material of the present invention will be described.

FIG. 1 is a schematic view of an apparatus for manufacturing a compacted material according to the present invention. As shown in FIG. 1, the apparatus for producing a compacted material according to the present invention comprises a charging chamber 1 on the right and a stirring unit on the left. A chamber 2 and a liquid transport mechanism 6 for feeding a liquid into the stirring chamber 2 are provided. Then, the charging chamber 1 and the stirring chamber 2 are connected to each other as shown in FIG.
As shown in FIG. 1, the rotary shaft 3 is communicated via the communication port 4 and has a rotating shaft 3 extending in the left-right direction inside both sides.

The rotary shaft 3 has a right end rotatably supported by the right wall of the charging chamber 1 and a left end rotatably supported by the left wall of the stirring chamber 2, thereby forming the charging chamber 1 and the communication port 4. , And over the entire area of the stirring chamber 2 in the left-right direction. The right end is connected to a drive motor 5 (shown in FIG. 1) via a belt, and is rotated by the drive of the drive motor 5. The rotating shaft 3 in this embodiment includes a loading chamber rotating shaft 3a disposed in the loading chamber 1,
The communication port 4 and the rotating shaft 3 for the stirring chamber provided in the stirring chamber 2
b) to facilitate the work such as replacement, etc., but it can be changed as appropriate, such as comprising one.

A hopper 11 is attached to the upper part of the charging chamber 1, and a cement material can be put into the hopper 11 from the hopper 11. Inside, a spring member 12 is provided at a lower portion. This spring member 12
Is for guiding the introduced cement material in the charging chamber 1 to the communication port 4, and is formed by forming a wire having a circular cross section into a roughly wound coil shape as shown in FIG. The left end of the spring member 12 is attached to the left end of the input chamber rotation shaft 3a, and the right end is attached to the right end of the input chamber rotation shaft 3a, so that the spring member 12 can rotate with the rotation of the rotation shaft 3. The charging chamber 1 is disposed over the entire area from the left end to the right end in the lower part of the charging chamber 1.

The communication port 4 connects the charging chamber 1 and the stirring chamber 2 as described above, and the cement material in the charging chamber 1 is introduced into the stirring chamber 2 through the communication port 4. The communication port 4 is provided with a screw conveyor 41 as a conveying means. The screw conveyor 41 in this embodiment is divided and attached to the right part of the rotation shaft 3a for the charging chamber and the left part of the rotation shaft 3b for the stirring chamber. More specifically, the outer diameter is smaller than the inner diameter of the spring member 12, and the portion attached to the input chamber rotating shaft 3 a is disposed inside the diameter of the spring member 12 so that On the other hand, the rotating shaft 3b for the stirring chamber
Is attached to the stirring chamber 2 so as to reach the inside thereof, and by connecting both rotating shafts 3a, 3a, one continuous screw conveyor 41 is formed.

The stirring chamber 2 is formed by a cylindrical casing 21. As shown in FIG. 3, a hose 61 of a liquid material transport mechanism 6 described later is radially connected to a peripheral portion from the side to the upper portion of the communication port 4 on the right end surface of the casing 21. Further, as shown in FIG. 2, a discharge port 21a is formed in a lower portion on the left side of the casing 21, and the discharge port 21a is discharged out of the stirring chamber 2 as a final consolidation material. On the other hand, stirring blades 22... 23 are provided inside, and a cement material sent from the charging chamber 1 through the communication port 4 and a liquid material sent from the hose 61 are mixed. The stirring blades 22... 23 in this embodiment include three blades 22... 22 formed by arranging plate members around the rotation shaft 3b for the stirring chamber at equal intervals in the circumferential direction as shown in FIG.
Box-shaped blades 23 formed by arranging three plate members, which are formed by bridging another plate member on the tip of two plate members arranged in parallel in the axial direction around the outer periphery of the rotating shaft 3 and arranged at equal intervals in the circumferential direction. It consists of two types. The stirring blades 22... 23 made of these two types are rotated by the rotation shaft 3b for the stirring chamber.
Are formed over the range from the terminal end of the screw conveyor 41 to the left end, and are disposed over substantially the entire left-right direction inside the stirring chamber 2.

As shown in FIG. 1, the liquid transfer mechanism 6 includes a tank 62 for storing a liquid such as oil or water, and a hose 61 connected to the tank 62 and the stirring chamber 2. The distal end of the hose 61 is branched into a plurality of portions, each of which is radially juxtaposed and attached to the outer peripheral portion of the communication port 4 on the right end surface of the stirring chamber 2 as shown in FIG.
Each end of the branched hose 61 is provided with a spray nozzle 11a.
Is sprayed into the stirring chamber 2 in the form of a mist. Note that 63 in FIG. 1 indicates a pump, and the pump 63 sends a liquid material from the tank 62 to the stirring chamber 2.
The arrangement position and number of the nozzles 11a of the hose 61 are not limited to those shown in FIG. 3 and can be changed as appropriate. A liquid material may be sprayed from the whole. Further, the present invention is not limited to the one provided on the right end face of the stirring chamber 2 as described above, and may be provided on the peripheral wall instead of the right end face of the stirring chamber 2 or on the peripheral wall in addition to the right end face.

Although not shown, a pressure switch, a pressure rectifier, a flow meter and the like are provided in the middle of the hose 61 so that a constant amount of oil can be fed into the stirring chamber 2 at a constant time. . When oil is used as a liquid, the oil is injected into the stirring chamber 2 at a pressure of about 30 kg / cm ² ,
The mixing ratio may be adjusted so as to be less than or equal to the weight%, but preferably adjusted so as to be approximately 4 to 7% by weight. If it is less than 4%, the cement will not be given much moisture, and part of the cement will remain in a dry powdery state, and its effect as a consolidation material will become thin. On the other hand, if it exceeds 7%, the cement will become mortar-like. This is because there is a risk of solidification.

Next, a description will be given of a method for producing a ground consolidation material using this apparatus. First, while rotating the rotating shaft 3, a cement material is charged into the charging chamber 1 from the hopper 11. Thereby, of the injected cement materials, those on the left side in the charging chamber 1 are conveyed to the stirring chamber 2 by the starting end of the screw conveyor 41. On the other hand, the one on the right side in the charging chamber 1 is guided toward the screw conveyor 41 by the rotation of the spring member 12. Therefore, the spring member 12 performs the same role as the screw conveyor,
The cement material in the entire area in the input chamber 1 is
It can be conveyed into the stirring chamber 2 through the communication port 4.
Further, the stirring chamber 2 is filled with the cement material, and the conveyance amount by the screw conveyor 41 is reduced.
When the cement material stagnates at the start end side, a load is applied to the spring member 12 when the cement material is fed by the spring member 12 to the screw conveyor 41 side. When this load is applied, the spring member 12 contracts at the right portion and expands at the left portion as shown in FIG.
The feed amount of the cement material to the screw conveyor 41 is reduced. Therefore, it is possible to prevent the cement material from being unnecessarily fed into the stirring chamber 2 without adjusting the rotation of the rotating shaft 3, and it is possible to maintain the mixing ratio between the oil and the cement material.

On the right side of the stirring chamber 2, the mist-like oil sent from the tank 62 is applied to the cement material conveyed into the stirring chamber 2. The oiled cement material is sent to the left inside the stirring chamber 2 while being stirred by the stirring blades 22. At the time of the stirring, if a normal mortar mixing method of mixing the cement material and water at a ratio of about 1 to 1 is performed, the liquid material and a part of the cement are mixed and only a part becomes a viscous mortar. While most other cements remain powdered. However, by supplying the liquid material in the form of a mist and supplying it in a fine state as in the present invention, the liquid material can be almost uniformly mixed with the entire cement. Therefore, the whole cement material can be made into a powdery form that is not slimy and does not fly off as dust, and partly becomes a viscous mortar like the normal mortar mixing method described above, It can be prevented that the powder remains. The ground consolidation material formed by stirring is sequentially discharged from the discharge port 21a. Thereby, the consolidation material can be obtained continuously.

Further, when the stirring chamber 2 is filled with the conveyed cement material, the cement material in the stirring chamber 2 starts to decrease at the same time as starting to enter and exit as a consolidation material from the discharge port 21a. When the amount of the cement material in the stirring chamber 2 starts to decrease, the cement material staying at the starting end side of the screw conveyor 41 is adjusted accordingly.
The spring member 12, which has begun to be conveyed into the stirring chamber 2 by the load 1 and receives a load, removes the cement material in the charging chamber 1 by a screw conveyer by the elasticity and the rotational force in the axial direction which are going to return to the original state by removing the load. Quickly guide to 41 side. Thereby, the mixing ratio of the oil and the cement material can be always maintained.

Next, the method for solidifying the ground according to the present invention will be described. The method for solidifying the ground according to the present invention is a method in which the solidification material obtained as described above is successively sprayed on the surface of the land without being stored in a bag or the like. Therefore, according to this method, the above-mentioned apparatus for producing a consolidation material is placed on the site, and the consolidation material is sequentially dispersed while producing the consolidation material.

At this time, since the material discharged from the discharge port 21a of the above-mentioned manufacturing apparatus is successively sprayed without being stored, even if it is mixed with a cement material such as oil as a liquid material and stored for a long period of time, the cement material remains intact. The material is not limited to a material that does not solidify, and may use water. By doing so, it is possible to use a compaction material obtained at low cost. When water is used as the liquid material, the amount is 10% by weight or less based on cement, preferably about 4 to 7% by weight, as in the case of oil.

As a means for spraying on the surface of the land, the consolidation material discharged from the discharge port 21a of the above-mentioned production apparatus can be manually applied or a discharge device different from the production apparatus for the consolidation material. Further, a discharge device may be attached to the discharge port 21a of the above manufacturing apparatus, and the consolidation material discharged from the discharge port 21a may be continuously discharged and dispersed.

By consolidating the ground as described above,
The required amount can be immediately and appropriately manufactured at the site, and consolidation work can be performed at low cost.

In the present embodiment, a spring member 12 is provided in the charging chamber 1, and the cement material in the charging chamber 1 is sent to the communication port 4 by the spring member 12. Screw conveyor
It can be appropriately changed such as providing. Further, in the present embodiment, the apparatus is installed and used on the ground or the like. However, the present invention is not limited to this usage mode, and may be mounted on a mixer truck.
It can be used as appropriate.

[0024]

As described above, as described in the embodiments, the method of the present invention does not need to consider the preservation of the consolidation material.
For example, water can be used as a liquid material when producing the consolidation material, and it can be performed using a low-cost consolidation material. Further, it can be carried out on the site while producing a consolidation material as required. At that time, the spring
Liquid material and sediment are transported by a cement material transport mechanism using components.
Good solidification by mixing and stirring
It can be used to manufacture wood.

In addition, the apparatus for manufacturing a consolidation material of the present invention has a liquid material transporting mechanism for spraying a suitable amount of a liquid material into the stirring chamber in a mist state, so that the liquid material is substantially uniformly distributed to the cement material in the stirring chamber. By stirring the mixture at an appropriate mixing ratio to form a consolidation material, it can be continuously discharged, and can be made suitable for use as a device installed and used on site.

[Brief description of the drawings]

FIG. 1 is a schematic view of one embodiment of an apparatus for manufacturing a consolidation material of the present invention.

FIG. 2 is an explanatory diagram of an internal structure of a main part of an embodiment of a device for manufacturing a consolidation material of the present invention.

FIG. 3 is an end view along the line III-III in FIG. 2;

FIG. 4 is an explanatory view showing a deformed state of a spring member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Input chamber 2 Stirring chamber 3 Rotating shaft 4 Communication port 6 Liquid conveyance mechanism 12 Spring member 21a Discharge port 22, 23 Stirring blade 41 Screw conveyor 61 Hose 61a Nozzle

Claims (2)

(57) [Claims] 1. A spring member formed in a roughly wound coil shape.
(12) and inserted into the spring member (12).
And a rotating shaft (3).
Material with both ends fixed to the rotating shaft (3)
The transport mechanism (3) (12) is connected to the cement material input chamber (1).
And rotate around the rotation axis (3) of the cement material transport mechanism (3) (12).
By rotating the cement material, the cement material is
2) The liquid material is transferred from the charging chamber (1) to the stirring chamber (2) by the mist to the cement material transferred into the stirring chamber (2).
Liquid material of 10% by weight or less by spraying and stirring
These are successively produced while producing a powdery consolidation material containing
It is sprayed on the surface of the land by appropriate means
Method of consolidating the land surface. 2. A chamber for charging a cement material (1), a liquid material and a cell.
A stirring chamber (2) for stirring the material and a charging chamber (1).
Material transfer to transfer the cement material to the stirring chamber (2)
Liquid for sending liquid to mechanism (3) (12) and stirring chamber (2)
And a cement transfer mechanism (3), (12) in the form of a coarse coil.
The formed spring member (12) and the spring
The rotation shaft (3) inserted into the member (12) is inserted into the charging chamber.
(1) the spring member
Both ends of (12) are fixed to the rotating shaft (3), respectively.
The cement material with the rotation of the rotating shaft (3)
Transported to the agitation chamber (2) by the rotatable member (12)
And the liquid transfer mechanism (6) is adapted to stir the liquid in appropriate amounts in the stirring chamber.
(2) The mist is injected into the mist, and the stirring chamber (2) sequentially puts an appropriate amount of the liquid material and the cement material.
It is possible to discharge continuously as a consolidation material while stirring.
Manufacturing equipment for consolidation material, characterized in that
Place.