KR101335579B1 - Construction method for foundation using mixer for filler - Google Patents

Abstract

The present invention sieve part sieving sieve soil on the field; A transfer part 120 for transferring the site-generated soil and the binder sieved by the sieving part 110; A mixing unit 130 for preparing a filler by mixing the solidified solution with respect to the field-producing soil and the binder transferred by the transfer unit 120; By presenting the filler mixing device 100 including a storage unit 140 for storing the filler, it is possible to effectively solidify the generated soil or by-product waste earth to exhibit sufficient strength.

Description

Basic method using filler mixing device {CONSTRUCTION METHOD FOR FOUNDATION USING MIXER FOR FILLER}

The present invention relates to the field of civil engineering, and in particular, to a method for constructing a foundation structure.

When the soil of the ground, which is the basis of the civil engineering structure, does not meet the required strength, the soil solidification method is used, which solidifies the soil with a solidifying agent.

On the occasion of field excavation caused by excavation of civil engineering and construction site, byproducts dumped in tohins, coastal areas, dams, ponds, etc. are very weak in strength, But it has been pointed out that it was a reality that the soil was not used as a basic soil by the solidification method.

The present invention was derived to solve the above problems, and an object of the present invention is to propose a filler mixing device and a basic method using the same to effectively solidify the generated soil or by-product waste earth to exhibit sufficient strength.

In order to solve the above problems, the present invention is a sieve filter for sieving the field-produced soil 110; A transfer part 120 for transferring the field-produced soil and the binder sieved by the sieve part 110; A mixing unit 130 for preparing a filler by mixing the solidified solution with respect to the field-producing soil and the binder transferred by the transfer unit 120; It presents a filler mixing apparatus 100 comprising a; storage unit 140 for storing the filler.

The sieve 110 is a funnel body 111; A sieve 112 installed below the funnel body 111; And a vibration applying unit 113 for applying vibration to the sieve 112.

The transfer unit 120 is a conveyor belt 121; A belt driving motor 122 driving the conveyor belt 121; It is preferable to include; an angle adjusting unit 123 for adjusting the angle of the conveyor belt 121.

The mixing unit 130 is a container-shaped body 131 is formed with a filler drop groove 132 at the bottom; A mixing rotary shaft 133 installed in the container body 131 in a horizontal direction; A plurality of mixing members 134 installed on an outer circumference of the mixing rotary shaft 133; It is preferable to include a; rotating shaft drive motor 135 for applying a rotational force to the mixing rotary shaft 133.

The mixing unit 130 is a guide rotating shaft 136 installed in the horizontal direction in the lower portion of the mixing rotary shaft 133; It is preferable to include; an auger portion 137 formed on the outer circumference of the guide rotation shaft 136 to guide the filler toward the filler drop groove 132.

The lower portion of the storage unit 140, it is preferable that the pressure feed unit 150 is formed so as to feed the filler.

The pressure feeding unit 150 is a pressure rotating shaft 151 installed in the horizontal direction; It is preferable to include; auger portion 152 formed on the outer circumference of the pressure-feeding rotary shaft 151 so as to feed the filler.

The present invention is a basic method using the filler mixing device 100, the drilling step of forming a plurality of drilling holes 11 by drilling the ground (10); Filler manufacturing step of manufacturing the filler by supplying the on-site soil generated in the drilling step to the filler mixing device 100; It presents a basic method, characterized in that it comprises a; middle layer processing step of forming a plurality of piles 20 by mixing the filler in the plurality of perforation holes (11).

The surface layer treatment step of forming a reinforcement surface layer 30 by mixing and coating the filler on the surface of the ground (10) preferably.

The solidifying agent in the aqueous solution of the solidifying agent is 22.4 to 35.7 parts by weight of calcium chloride, 12 to 26 parts by weight of ammonium chloride, 21.42 to 34.68 parts by weight of magnesium chloride, 1.2 to 7 parts by weight of magnesium sulfate, 8 to 13 parts by weight of soda alginate, and ligrin It is preferable to contain 4-10 weight part of sulfonates, 2.5-3.5 weight part of magnesium stearate, and 1-2 weight part of divalent iron compounds.

It is preferable to mix and solidify 0.5-2 kg of said hardening | curing agents and 100-400 kg of binders with respect to 1m <3> of soil.

It is preferable to mix 30-35 L of said solidifying solution aqueous solution with respect to 1m <3> of soil.

The binder preferably includes 30 to 40 parts by weight of cement, 50 to 60 parts by weight of slag or fly ash, and 5 to 15 parts by weight of gypsum.

It is preferable to mix and solidify 0.5 to 2 kg of the solidifying agent, 100 to 200 kg of the binder, 20 to 25 parts by weight of the fly ash or the fine powder with respect to 1 m 3 of the soil.

It is preferable to further solidify 60 to 90 L of liquid sodium silicate by mixing.

The binder preferably includes 30 to 40 parts by weight of cement, 50 to 60 parts by weight of slag or fly ash, and 5 to 15 parts by weight of gypsum.

It is preferable to add 1 to 5 L of an aqueous solution of 3 to 5 parts by weight of an emulsion solution obtained by mixing a methacrylic resin and a silica-based solidifying agent to 1 m 3 of the soil.

The present invention is a basic method using the filler mixing device 100, the drilling step of forming a plurality of drilling holes 11 by drilling the ground (10); Filler manufacturing step of manufacturing the filler by supplying the on-site soil generated in the drilling step to the filler mixing device 100; Pile indentation step of entering the pile 40 in the plurality of drilling holes (11); The filling method of filling the gap 41 between the drilling hole 11 and the pile 40 in the vicinity by the filler material is presented together with a basic method.

The present invention provides a filler mixing device and a basic method using the same to effectively solidify the on-site soil or by-product waste earth to exhibit sufficient strength.

1 to 5 show an embodiment of the mixing apparatus according to the present invention,
1 is an overall configuration diagram.
2 is a block diagram of a sieve filter.
3 is a configuration diagram of the transfer unit.
4 is a block diagram of a mixing unit.
5 is a configuration diagram of the storage unit.
6,7 is a process chart of the first embodiment of the foundation method according to the present invention.
8 is a process diagram of a second embodiment of the foundation method according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figure 1 below, the filler material mixing apparatus 100 according to the present invention basically comprises a sieve portion 110 for sifting the soil generated on-site; A transfer part 120 for transferring the site-generated soil and the binder sieved by the sieving part 110; A mixing unit 130 for preparing a filler by mixing the solidified solution with respect to the field-producing soil and the binder transferred by the transfer unit 120; It is configured to include; storage unit 140 for storing the filler.

The basic method using such a filler mixing device 100 is configured by the following process.

The ground 10 is drilled to form a plurality of drill holes 11 (FIG. 6).

Filling the field-producing soil generated in the drilling step to the filler mixing device 100 to produce a filler, and the filler is mixed and injected into a plurality of drilling holes 11 to form a plurality of piles 20 (Fig. 7) .

The solidified body formed by mixing in situ soil and an aqueous solution of solidifying agent does not have the strength as concrete, but may exhibit sufficient strength in forming the basic structure for reinforcing the ground.

Therefore, it is possible to shorten the construction period, and to effectively solidify on-site generated soil or by-product waste soil, so that sufficient strength can be exerted. Therefore, it is not necessary to bring in external soil.

Furthermore, in the case of forming the reinforcement surface layer 30 by mixing and coating the filler on the surface of the ground 10, since the double reinforcement structure of the pile 20 and the reinforcement surface layer 30 formed by the above solidified body is taken, A more stable structure can be achieved.

In addition, when the pre-fabricated pile 40, such as PHC pile, is inserted into the plurality of perforated holes 11, the filler filling the gap 41 between the drilled hole 11 and the piled pile 40. It is also possible to apply the filling method by the filler produced by the mixing device 100 (Fig. 8).

Hereinafter, the specific structure of the filler mixing apparatus 100 by this invention is demonstrated.

The sieving unit 110 is a structure for removing a large particle size among field-occurring soils generated when the drilling hole 11 is formed, and having a funnel body 111; A sieve 112 installed under the funnel body 111; And a vibration applying unit 113 for applying vibration to the sieve 112 (FIG. 2).

Here, the vibration applying unit 113 may be any structure as long as it can apply vibration to the sieve 112 by the configuration of a motor, an eccentric rotation shaft, or the like.

The transfer unit 120 is a configuration for transferring the field-produced soil and the binder sieved by the sieving unit 110, the conveyor belt 121; A belt driving motor 122 driving the conveyor belt 121; It can be implemented by a structure including; an angle adjusting unit 123 for adjusting the angle of the conveyor belt 121 (Fig. 3).

Mixing unit 130 is a configuration for manufacturing the filler by mixing the solidified solution with respect to the field-produced soil and the binder transported by the transfer unit 120, the container-shaped body 131 is formed with a filler drop groove 132 at the bottom ; A mixing rotary shaft 133 installed in the container body 131 in a horizontal direction; A plurality of mixing members 134 installed on an outer circumference of the mixing shaft 133; It is preferably configured to include; a rotating shaft drive motor 135 for applying a rotational force to the mixing shaft 133 for mixing (FIG. 4).

The mixing shaft 133 may be installed in the longitudinal direction, but since a large force is required for mixing the soil generated in the field with the binder and the solidifying agent solution, it is preferable to take a structure installed in the horizontal direction, and the mixing shaft 133 for mixing. It is preferable that a plurality of mixing members 134 are installed on the outer circumference of the backplane.

In order for the filler mixed by the mixing rotary shaft 133 and the mixing member 134 to be discharged smoothly through the filler drop groove 132, the guide rotary shaft installed horizontally in the lower portion of the mixing rotary shaft 133 ( 136); In order to guide the filler toward the filler drop groove 132, it is preferable to take the structure including the auger part 137 formed in the outer periphery of the guide rotating shaft 136 (FIG. 4).

The storage unit 140 is configured to store the manufactured filler, and in order to smoothly inject the stored filler into the drilling hole 11, the pumping unit 150 is formed so as to feed the filler under the storage unit 140. It is preferable to become (FIG. 5).

The pressure feeding unit 150, the pressure feeding rotary shaft 151 provided in the horizontal direction; It may be implemented by a structure including a; auger portion 152 formed on the outer periphery of the rotary shaft 151 for the pressure-feeding filler.

EMBODIMENT OF THE INVENTION Hereinafter, the structure of the solidifying agent aqueous solution and binder used for the foundation method by this invention is demonstrated.

The solidifying solution is formed by mixing the solidifying agent with water, where the solidifying agent is basically 22.4 to 35.7 parts by weight of calcium chloride, 12 to 26 parts by weight of ammonium chloride, 21.42 to 34.68 parts by weight of magnesium chloride, and 1.2 to 7 parts by weight of magnesium sulfate. Parts, 8 to 13 parts by weight of soda aluminate, 4 to 10 parts by weight of lignin sulfonate, 2.5 to 3.5 parts by weight of magnesium stearate, and 1 to 2 parts by weight of a divalent iron compound such as iron sulfate.

In the case of high quality soil, it is possible to obtain a compressive strength of 20 kgf / cm 2 or more, excellent freezing and thawing property and impermeability only by mixing 0.5 to 2 kg of a soil soil-fixing agent and 100 to 400 kg of a binder containing cement, .

At this time, it is sufficient to apply 8 to 11 parts by weight of soda alkalate and 4 to 7 parts by weight of ligrin sulfonate.

Here, the solidifying agent is in the form of an aqueous solution, it is preferable to be mixed in a ratio of 30 ~ 35 L per 1 m 3 of the soil for the constructability and structural stability.

As a binder, only cement may be applied, but when the composition including 30 to 40 parts by weight of cement, 50 to 60 parts by weight of slag or fly ash, and 5 to 15 parts by weight of gypsum is taken, excellent properties may be obtained. It may be provided in the form of a pre-mix in combination with the topic.

In the case of soil containing a large amount of by-product waste soil (soft clay, waste fine soil, masato, sludge, sludge, etc.), 0.5 to 2 kg of above-mentioned solidifying agent and 100 to 200 kg of binder containing cement, ply It is preferable to mix and solidify 20 to 25 parts by weight of ash or powdered ash.

Fly ash or stone powder is an inorganic material that is soil aggregate and plays a role of reinforcement material. Therefore, when a large amount of by-product waste earth is present, it is mixed with soil with a hardener, so that the compressive strength, tensile strength, abrasion resistance, freeze-thawing It serves to provide a granular material having excellent properties.

In addition, when 60 to 90 L of liquid sodium silicate is further added to 1 m 3 of soil, more excellent solidification effect can be obtained.

The alkali component (Na2O) contained in the liquid sodium silicate (Na2O-nSiO2-xH2O) activates the silica component contained in the pozzolan, and forms the silica or the anion moiety with the calcium silicate compound.

This shortens the gel time between the soil, cement and sodium silicate so that it has the properties of the fastener.

Particularly, since the liquid sodium silicate modified with sodium silicate (3 sec. Succulent) corresponds to a strong alkaline aqueous solution having a low molar ratio (2.0 to 2.5), the water-resistant property of sodium silicate can be obtained, Since it is composed of SiO2, Al2O3, Fl2O3, CaO or the like as a main component, a permanent structure by a strongly bonded cured body can be obtained.

Accordingly, the liquid sodium silicate increases pozzolanic reactivity, thereby obtaining effects such as early strength expression, hardening promotion, and excellent durability.

Item 3 types (No. 3) Specific gravity (20 ℃) 1.380 or more Silicon Dioxide (SiO2) (%) 28 to 30 Sodium oxide (Na2O) (%) 9-10 Fe (%) 0.03 or less Mole rain 2.0 ~ 2.5

Table 1 shows the physical properties of the liquid sodium silicate (KS M 1415).

Even in the present embodiment, only cement may be used as the binder, but when the composition including 30 to 40 parts by weight of cement, 50 to 60 parts by weight of slag or fly ash, and 5 to 15 parts by weight of gypsum is obtained, more excellent physical properties are obtained. They may be provided in the form of a pre-mix by incorporating the above solidifying agent.

In the case of soft ground, the compressive strength of 10 to 50kgf / ㎠ or more, and excellent freeze-melting property and water impermeability, only by mixing and solidifying 1 to 2 kg of the above solidifying agent and 70 to 100 kg of the binder containing cement to 1 ㎥ of soil Permeability coefficient of 1 × 10 −7 cm / sec).

In the case of soft viscous soils and clay coarse clays, high molecular weight compounds are dispersed in organic matter (Humic acid) and are dissolved in the adhering water around the granules. There is a problem of forming an impermeable membrane on the surface of the cement hydrate by reacting with calcium ions.

In the present embodiment, the solidifying agent is used in 11.1 ~ 13 parts by weight of soda alminate, 7.1 ~ 10 parts by weight of lignin sulfonate, these components are characterized in that evenly distributed between the soft granules and cohesion of the soft soil and induce a stable hydration reaction There is this.

Here, the solidifying agent is in the form of an aqueous solution, it is preferable to mix 30 ~ 35L per 1 m 3 of the soil for the construction and structural stability.

As a binder, only cement may be applied, but when the composition including 30 to 40 parts by weight of cement, 50 to 60 parts by weight of slag or fly ash, and 5 to 15 parts by weight of gypsum is taken, excellent properties may be obtained. It may be provided in the form of a pre-mix in combination with the topic.

In addition to the above-mentioned solidifying agent, when adding 1 ~ 5L of the aqueous solution of 3 ~ 5 parts by weight of the emulsion solution mixed with the methacryl resin and the silica-based solidifying agent, the three-dimensional network structure is formed by chemical bonding between the granules, the crosslinking curing reaction is The advantage of being further promoted is added.

Hereinafter, a test example for demonstrating the effect of the method and the solidifying agent according to the present invention will be described.

The solidifying agent is 29.4 parts by weight of calcium chloride, 20 parts by weight of ammonium chloride, 28 parts by weight of magnesium chloride, 3 parts by weight of magnesium sulfate, 9 parts by weight of soda alginate, 6 parts by weight of ligrin sulfonate, 3 parts by weight of magnesium stearate, iron sulfate 1.6 It formed by incorporation of parts by weight.

The specimens were prepared by adding 1kg / ㎥ to the target soil.

Based on the waste process test standard (Ministry of the Environment Notice No. 2011-3), the following relevant standards were applied.

KS F 2302 Particle size test method

KS F 2303 Liquid Limit, Firing Limit Test Method

KS F 2306 Water content test method

KS F 2308 Density test method of soil

KS F 2312 Compaction test method of soil

KS F 2322 Test method of soil permeability

KS F 2324 Classification of soil engineering

KS F 2328 Compressive strength test method of soil-cement

How to make and cure specimens for soil-cement compression and strength test in KS F 2329 test room

KS F 2331 Relationship between water content and density of soil-cement mixture Test method

For the cement, Portland cement (OPC), which is one kind of domestic cement, was used. For the target soil, 2mm sieve, density of 2.615, chloride content of 0.02%, SM were used and general tap water was used.

The combination of the solidifying agent and the cement according to the present invention was as follows.

(Unit: kg / m ³ ) No. Name of sample Unit Cement Amount Target Sat Binders 5000 One C150B1 150 2571 One 2 C200B1 200 2563 One 3 C250B1 250 2546 One

Here, C150B1 means that 150kg of cement and 1kg of solidifying agent are mixed in 1㎥ of soil, and C200B1 means that 200kg of cement and 1kg of solidifying agent are mixed into 1㎥ of soil.

Compressive strength tests were carried out at 3, 7 and 28 days compressive strength test according to KS F 2328 using hydraulic compressive tester with addition of solidifying agent in soil - cement specimens.

For the permeability test, C150B1 was applied based on KS F 2322, and the permeability test was conducted according to the presence or absence of the solidifying agent in the soil - cement specimens.

Toxic substances the dissolution profile test are the waste process test criteria (MOE Notice No. 2011-3) tests Pd, Cd, Cr ^6+, Cu, Hg, As, CN using a solidifying agent of the present invention according ^to-the organic Eleven substances, including trichloroethylene, tetrachloroethylene and oil, were tested for the presence or absence of hazardous substances.

According to KS F 2331 test method, the maximum dry density and optimum water content according to the amount of unit cement are as follows.

No. Unit Cement Amount (kg / m ³ ) Maximum dry density (kg / m ³ ) Optimum water content (%) One 150 1933 9.7 2 200 1936 9.7 3 250 1942 9.5

The compressive strength was tested in accordance with KS F 2328, and the results of the compressive strength tests at 3, 7 and 28 days were as follows according to the addition of soil strengthening agent in soil - cement specimens.

No. Name of sample Compressive strength (MPa) 3 days 7 days 28th One C150B0 0.92 1.34 1.60 2 C150B1 1.12 1.90 2.66 3 C200B0 1.34 2.12 2.60 4 C200B1 1.52 2.64 3.66 5 C250B0 2.06 2.96 3.72 6 C250B1 2.34 3.26 4.59

Here, C150B0 means that 150kg of cement and 0kg of solidifying agent are mixed into 1㎥ of soil, and C250B0 means that 250kg of cement and 0kg of solidifying agent are mixed into 1㎥ of soil.

The permeability test was carried out on the specimens of 5 days old age using C150B1, C200B1 and C250B1 combination based on KS F 2322. The results of the permeability coefficient (k) test are as follows.

division Permeability Coefficient (cm / s) C150B1 1 × 10 ^-7 or less (impervious) C200B1 1 × 10 ^-7 or less (impervious) C250B1 1 × 10 ^-7 or less (impervious)

Waste process test criteria (MOE Notice No. 2011-3) with the agent and according to the tests Pd, Cd, Cr ^6+, Cu, Hg, As, CN ^-, organophosphorus, trichlorethylene, tetrachlorethylene, A dissolution test for harmful substances on oil components and the like was carried out to obtain the following results.

Test Items unit Test result Test Methods Pd mg / L Not detected Waste process test standard
(Ministry of Environment Notice No. 2011-3) CD mg / L Not detected Waste process test standard
(Ministry of Environment Notice No. 2011-3) Cr ⁶⁺ mg / L Not detected Waste process test standard
(Ministry of Environment Notice No. 2011-3) Cu mg / L Not detected Waste process test standard
(Ministry of Environment Notice No. 2011-3) Hg mg / L Not detected Waste process test standard
(Ministry of Environment Notice No. 2011-3) As mg / L Not detected Waste process test standard
(Ministry of Environment Notice No. 2011-3) CN ^- mg / L Not detected Waste process test standard
(Ministry of Environment Notice No. 2011-3) Organic phosphorus mg / L Not detected Waste process test standard
(Ministry of Environment Notice No. 2011-3) Trichlorethylene mg / L Not detected Waste process test standard
(Ministry of Environment Notice No. 2011-3) Tetrachlorethylene mg / L Not detected Waste process test standard
(Ministry of Environment Notice No. 2011-3) Oil component mg / kg Not detected Waste process test standard
(Ministry of Environment Notice No. 2011-3)

As a result of the test, the compressive strength of the soil-cement specimen according to the addition of the solidifying agent according to the present invention was C150B0 (when the solidifying agent according to the present invention was added) Compressive strength increased 2.66MPa compared to C200B1, 3.66MPa increased compressive strength compared to C200B1, and 4.59MPa increased C250B1 compared to C250B0.

The results of measurement of the coefficient of permeability of C150B1 to C250B1 according to the addition of the solidifying agent according to the present invention were 1.0 × 10 ^-7 cm / s or less (impervious).

Hazardous Material eluted according to the solidifying agent added in accordance with the present invention test results Pd, Cd, Cr ^6+, Cu, Hg, As, CN ^-, 11 gaji tests such as organophosphorus, trichlorethylene, tetrachlorethylene, oil And no leakage of harmful substances.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is to be understood that both the technical idea and the technical spirit of the invention are included in the scope of the present invention.

10: ground 11: drilled hole
20: File 30: Reinforcement Surface
100: filler mixing device 110: sieve part
111: funnel body 112: sieve
113: vibration applying unit 120: transfer unit
121: conveyor belt 122: belt drive motor
123: angle adjustment unit 130: mixing unit
131: container type body 132: filling material drop groove
133: shaft 134: mixing member
135: rotating shaft drive motor 136: guide shaft
137: rejection 140: storage
150: feeder 151: rotary shaft for feeding
152: denial

Claims (18)

A sieve filter (110) for sifting the soil generated on-site;
A transfer part 120 for transferring the field-produced soil and the binder sieved by the sieve part 110;
A mixing unit 130 for preparing a filler by mixing the solidified solution with respect to the field-producing soil and the binder transferred by the transfer unit 120;
As a basic method using the filler mixing device 100, including; the storage unit 140 for storing the filler;
Drilling the ground (10) to form a plurality of drilling holes (11);
Filler manufacturing step of manufacturing the filler by supplying the on-site soil generated in the drilling step to the filler mixing device 100;
And a middle layer processing step of forming a plurality of piles 20 by mixing the fillers into the plurality of perforation holes 11.
The solidifying agent in the aqueous solution of the solidifying agent is
22.4 to 35.7 parts by weight of calcium chloride, 12 to 26 parts by weight of ammonium chloride, 21.42 to 34.68 parts by weight of magnesium chloride, 1.2 to 7 parts by weight of magnesium sulfate, 8 to 13 parts by weight of soda aluminate, 4 to 10 parts by weight of ligline sulfonate, A foundation method comprising 2.5 to 3.5 parts by weight of magnesium stearate and 1 to 2 parts by weight of a divalent iron compound. The method of claim 1,
The sieve filter 110 is
Funnel body 111;
A sieve 112 installed below the funnel body 111;
Vibration applying unit 113 for applying a vibration to the sieve 112;
Wherein the method comprises the steps of: The method of claim 1,
The transfer unit 120
Conveyor belt 121;
A belt driving motor 122 driving the conveyor belt 121;
An angle adjusting unit 123 for adjusting the angle of the conveyor belt 121;
Wherein the method comprises the steps of: The method of claim 1,
The mixing unit 130
A container-type body 131 having a filler drop groove 132 formed at a lower portion thereof;
A mixing rotary shaft 133 installed in the container body 131 in a horizontal direction;
A plurality of mixing members 134 installed on an outer circumference of the mixing rotary shaft 133;
A rotary shaft drive motor 135 for applying a rotational force with respect to the mixing shaft 133;
Wherein the method comprises the steps of: 5. The method of claim 4,
The mixing unit 130
A guide rotation shaft 136 installed in a horizontal direction under the mixing rotation shaft 133;
An auger 137 formed on an outer circumference of the guide rotation shaft 136 to guide the filler toward the filler drop groove 132;
Wherein the method comprises the steps of: The method of claim 1,
Under the storage unit 140, the foundation method, characterized in that the pressure-feeding unit 150 is formed so as to feed the filler. The method according to claim 6,
The pressure sending unit 150 is
A rotary feed shaft 151 installed in a horizontal direction;
An auger portion 152 formed on an outer circumference of the pressure feeding rotary shaft 151 to feed the filler;
Wherein the method comprises the steps of: delete The method of claim 1,
A surface layer treatment step of mixing and coating the filler on the surface of the ground 10 to form a reinforcement surface layer 30;
Basic method characterized in that it further comprises. delete The method of claim 1,
A foundation method, characterized in that the solidification by mixing the solidifying agent 0.5 ~ 2kg, binder 100 ~ 400kg per 1m 3 of the soil. 12. The method of claim 11,
For 1 m3 of soil,
Basic method, characterized in that 30 to 35 L of the solidifying solution is mixed. 12. The method of claim 11,
The binder
A foundation method comprising 30 to 40 parts by weight of cement, 50 to 60 parts by weight of slag or fly ash, and 5 to 15 parts by weight of gypsum. The method of claim 1,
Basic method, characterized in that the solidification by mixing 20 to 25 parts by weight of the solidifying agent 0.5 ~ 2kg, binder 100 ~ 200kg, fly ash or stone powder with respect to 1 ㎥ of soil. 15. The method of claim 14,
Basic method characterized in that the liquid sodium silicate 60 ~ 90l is further mixed and solidified. 15. The method of claim 14,
The binder
A foundation method comprising 30 to 40 parts by weight of cement, 50 to 60 parts by weight of slag or fly ash, and 5 to 15 parts by weight of gypsum. 12. The method of claim 11,
A basic method, characterized by further adding 1 to 5 L of an emulsion solution of 3 to 5 parts by weight of an aqueous solution of a mixed methacryl resin and a silica-based hardener to 1 m 3 of soil. A sieve filter (110) for sifting the soil generated on-site;
A transfer part 120 for transferring the field-produced soil and the binder sieved by the sieve part 110;
A mixing unit 130 for preparing a filler by mixing the solidified solution with respect to the field-producing soil and the binder transferred by the transfer unit 120;
As a basic method using the filler mixing device 100, including; the storage unit 140 for storing the filler;
Drilling the ground (10) to form a plurality of drilling holes (11);
Filler manufacturing step of manufacturing the filler by supplying the on-site soil generated in the drilling step to the filler mixing device 100;
Pile indentation step of entering the pile 40 in the plurality of drilling holes (11);
And a filling step of filling the gap 41 between the punched hole 11 and the pile 40 in which the filler 40 is filled with the filler.
The solidifying agent in the aqueous solution of the solidifying agent is
22.4 to 35.7 parts by weight of calcium chloride, 12 to 26 parts by weight of ammonium chloride, 21.42 to 34.68 parts by weight of magnesium chloride, 1.2 to 7 parts by weight of magnesium sulfate, 8 to 13 parts by weight of soda aluminate, 4 to 10 parts by weight of ligline sulfonate, A foundation method comprising 2.5 to 3.5 parts by weight of magnesium stearate and 1 to 2 parts by weight of a divalent iron compound.

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