太洋基礎工業 List of Products and Services

The Geo-register method is a technique for quality and shape management in soft ground treatment work, which simultaneously conducts dynamic cone penetration tests and electrical logging immediately after construction to estimate the improved strength and range early on for quality and shape management.

• Geological Survey

To safely carry out difficult all-casing deep drilling, maintaining high vertical accuracy while pushing in the casing and the reliability of the chuck device are key points. The RT series tubing equipment used in the Super Top method features a wedge-type chuck device and boasts one of the largest rotational torque and pull-out force in its class. Additionally, aiming for efficient and economical rock cutting, it is equipped with a casing pushing automatic control mechanism (B-CON mechanism) that can maintain the bit load at a constant value through "sequence control." The excellent workability and safety of the Super Top method with these features have been demonstrated through "technical review certification."

• Foundation construction

■ Performance-Proven Construction Method Building Technology Performance Certification GBRC Performance Certification No. 13-04 Rev. 2 This method has been reviewed by a third-party organization, which certifies the performance of the technology. ■ High Load-Bearing Capacity and High Strength This method combines the benefits of steel pipes with stable quality and strength of columnar improvement bodies. ■ High-Quality Mixing The specialized mixer, equipped with a comb section and eight blades, provides high-quality mixing. ■ Wide Range of Soil Types This method can accommodate a wider range of soil types than typical columnar improvement methods, as the steel pipes can complement quality and strength to mitigate variations in strength due to soil type. ■ Short Construction Period Due to high surface friction and quality, it is possible to shorten the pile length compared to conventional columnar improvement methods, leading to a reduction in construction time. ■ Suitable for Narrow Sites Heavy machinery is selected based on site conditions to advance the project more efficiently.

• Pile and foundation work
• Ground foundation construction method
• Ground improvement

■ High penetration input The dedicated screw can drill even with a hard layer in the middle. ■ Suppression of soil discharge The dedicated screw with a drum suppresses soil discharge, reduces industrial waste, and is an eco-friendly construction method. ■ High-quality reinforcement body By simply replacing local soil with cement milk, it is not affected by soil quality, allowing for the construction of a high-quality reinforcement body. ■ Short construction period Breathing is suppressed with a dedicated admixture, enabling construction in a short period. ■ From narrow sites to large-scale projects Heavy machinery suitable for the site and four patterns of reinforcement body diameters are selected, allowing for economical design.

• Ground foundation construction method
• Ground improvement
• Residential foundations

The "TRD Method" is a construction technique that involves moving a cutter post installed underground horizontally while excavating the ground with cutter bits attached to a cutter chain, mixing and stirring a solidifying liquid with in-situ soil in a vertical direction, and creating a solidified body in the ground. 【Features】 1. Outstanding stability 2. High-precision construction possible 3. Cost savings achieved through excellent excavation capability 4. Homogeneous wall quality in depth direction 5. Continuous without discrepancies 6. Arbitrary setting of core material spacing possible Outstanding stability, high-precision construction, and excavation capability! A ground continuous wall method adaptable to various applications! *For more details, please feel free to contact us.

• Foundation construction
• Temporary Construction
• Civil Engineering Method

The "TRD method" is a construction technique that involves moving a cutter post installed underground horizontally while excavating the ground with cutter bits attached to a cutter chain, mixing and stirring the solidifying liquid with in-situ soil in a vertical direction, and creating a solidified body in the ground. 【Features】 1. Outstanding stability 2. High-precision construction possible 3. Cost reduction achieved through excellent excavation capability 4. Homogeneous wall quality in the depth direction 5. Continuous construction without misalignment 6. Flexible setting of core material spacing Outstanding stability, high-precision construction, and excavation capability! A ground continuous wall method adaptable to various applications! *For more details, please feel free to contact us.*

• Foundation construction
• Temporary Construction
• Civil Engineering Method

The "TRD Method" is a construction technique that involves moving a cutter post installed underground laterally while excavating the ground with cutter bits attached to a cutter chain. During this process, a solidifying liquid is mixed and stirred with in-situ soil in a vertical direction to create a wall-like solidified body underground. 【Features】 1. Outstanding stability 2. High precision construction is possible 3. Cost savings achieved through excellent excavation capability 4. Homogeneous wall quality in the depth direction 5. Continuous structure without discrepancies 6. Arbitrary setting of core material spacing is possible *For more details, please feel free to contact us.

• Ground foundation construction method
• Ground improvement
• Earth retaining wall/foundation reinforcement

The "TRD Method" is a construction technique that involves moving a cutter post installed underground horizontally while excavating the ground with cutter bits attached to a cutter chain, mixing and stirring a solidifying liquid with in-situ soil in a vertical direction, and creating a solidified body in the ground. 【Features】 1. Outstanding stability 2. High precision construction possible 3. Cost reduction achieved through excellent excavation capability 4. Homogeneous wall quality in the depth direction 5. Continuous without discrepancies 6. Arbitrary setting of core material spacing possible Outstanding stability, high precision construction, and excavation capability! A ground continuous wall method adaptable to various applications! *For more details, please feel free to contact us.*

• Foundation construction
• Temporary Construction
• Civil Engineering Method

The "CCC Method" is an abbreviation for the Chain Conveyor Cutter method, which uses CCC to construct ground improvement bodies. By mixing and blending the excavated ground with solidifying materials into soil cement, it enables the construction of underground continuous waterproof walls, temporary earth retaining walls, building foundations, grid-like improvements, and full improvements, among other applications, including soil contamination countermeasures. 【Features】 ■ The quality of the improved body is uniform in the vertical direction. ■ Capable of constructing gravel layers with an N value of 50 or more. ■ Immediate response is possible even if the depths differ within the same site. ■ Quick changeover of construction progress direction. ■ NETIS registration number QSK-12005-V. *For more details, please refer to the catalog or feel free to contact us.

• Ground foundation construction method
• Ground improvement
• Earth retaining wall/foundation reinforcement

The "Mini Wall Method" is a construction technique that creates a soil-cement underground continuous wall with high water-stopping ability and uniform vertical strength by mixing and agitating cement slurry discharged from the base ground and the bottom end of the posts using a chainsaw-type cutter mounted on a cutter post in a vertical direction. Since uniform thickness walls can be created, it is possible to install core materials at arbitrary intervals, allowing for high design flexibility and economical soil retention and water-stopping continuous walls. 【Features of the Mini Wall Method】 - Due to the uniform thickness of the wall, the installation interval of the stress core materials can be set arbitrarily. - Wall thickness can be adjusted by changing the cutter bits. - Construction is possible close to structures and at property boundaries. - The use of a suspended leader allows for step construction (5-6 meters). *Please refer to the PDF data for the catalog and construction examples of the "Mini Wall Method" available for download.

• Ground foundation construction method
• Other earthworks, foundation works, and exterior floors

The "Mini Wall Method" is a construction technique that creates a soil-cement underground continuous wall with high water-stopping capability and uniform vertical strength by vertically mixing and agitating cement slurry discharged from the ground and the lower end of the posts using a chainsaw-type cutter mounted on a cutter post. Since it allows for the creation of walls of uniform thickness, it is possible to install core materials at arbitrary intervals, providing high flexibility in soil retention design and enabling the construction of economical soil-retaining water-stopping continuous walls. **Features of the Mini Wall Method** - Due to the uniform thickness of the wall, the installation interval of stress core materials can be set arbitrarily. - Wall thickness can be adjusted by rearranging the cutter bits. - Construction is possible in close proximity to structures and at property boundaries. - The use of a suspended leader allows for stepped construction (5-6 meters). *For the catalog and construction examples of the "Mini Wall Method," please refer to the PDF data available for download.*

• Ground foundation construction method
• Other earthworks, foundation works, and exterior floors

The "Bubble Excavation Method" is a continuous underground wall construction technique that uses bubble liquid to mix and stir with in-situ soil, stabilizing the excavation trench with the formed bubble-stable liquid. This method significantly reduces the amount of excavated soil by eliminating bubbles during wall construction compared to conventional bentonite-based stabilizing liquids, enabling the construction of high-quality continuous walls with high strength and water impermeability. 【Features】 ■ Reduction of generated mud volume (approximately 40-60% of excavation volume) is possible ■ Improved water impermeability ■ Fine bubbles enhance the water-stopping ability of the wall ■ Reduced machine load due to decreased viscosity of the excavation liquid ■ Easy reuse of residual soil For more details, please refer to the catalog or feel free to contact us.

• Ground foundation construction method
• Ground improvement
• Earth retaining wall/foundation reinforcement

By combining a specially developed flexible casing and an auger drilling motor to generate rotational force with a high-pressure water jet, this "full-length extraction method" releases the friction between existing piles and the ground, allowing for the extraction of existing piles with ultra-low vibration and ultra-low noise. 【Features】 1. NETIS registration No. KT-120066-A 2. Ultra-low vibration and ultra-low noise 3. Compatible with inclined piles 4. Suitable for close proximity and narrow space construction 5. High work efficiency for various pile types with high-pressure water jet 6. Step construction is possible 7. Reduction of work time 8. Safety during operation For more details, please refer to the catalog or feel free to contact us.

• Civil Engineering Method
• Pile and foundation work

Taiyo Kiso Kogyo Co., Ltd. has introduced the "Hydraulic Universal Large-Diameter Excavator BG-20," making it possible to work close to boundaries even in sites where buildings and structures are densely packed. 【Suitable for the following construction!】 ■ Underground obstacle removal work ■ All-casing foundation pile work *For details on construction and the excavator, please refer to the PDF available for download.

• Foundation construction
• Ground foundation construction method
• Wood panel and frame wall construction

1. The impact force of the rotating chain can crush and mix from viscous soil to soft rock. 2. The mixing of high water content viscous soil and sandy soil, as well as the crushing of gravel, can be improved to a high quality. 3. Viscous soil and soft rock, which were traditionally disposed of as waste, can now be improved and reused. 4. Soil containing plants and debris can be neatly screened, improving the recycling rate.

• Road construction
• River construction
• Harbor Construction

"Suihei-kun" is an ultra-multi-point jack automatic control system that can safely and reliably perform correction, elevation, and underpinning work on buildings and structures using multiple jacks. It lifts the foundation as a whole, safely correcting the building without causing any deformation inside. This system consists of a jack automatic control device and a level measurement management device. 【Features】 ■ Can automatically control 32 jacks ■ Can continuously monitor level displacement processes at 32 points ■ Jack speed (extension speed) can be individually set ■ Jack stroke (extension amount) can be individually set and achieved within the same time ■ Can switch from automatic to manual operation ■ Individual jack loads can also be monitored ■ Precision of jack lifting can be managed in millimeter units from a central control panel For more details, please feel free to contact us.

• Ground foundation construction method
• Residential foundations
• Earth retaining wall/foundation reinforcement

The "RBP Wall Method" combines reverse bolt paneling and rebar insertion work to prevent collapse through the stabilization of cut slopes and natural slopes. It is applicable in areas with low ground stress, places with limited space, and at cut locations adjacent to structures, for purposes such as road widening, land development, steep slope countermeasures, fall prevention measures, and slope stabilization works. Excavation of the ground is performed using a sloping method that cuts down from the top of the slope while securing it with reverse bolt panels. For more details, please refer to the catalog or feel free to contact us.

• Civil Engineering Method
• Earthquake-resistant construction method

The "RBP Wall Method" combines reverse bolt paneling and rebar insertion work to prevent collapse by stabilizing cut slopes and natural slopes. It is applicable in areas with low ground stress, places with limited space, and cut areas adjacent to structures, for purposes such as road widening, land development, steep slope countermeasures, fall prevention work platforms, and slope stabilization work. Excavation of the ground is performed using a sloping method that lowers the slope while securing it with reverse bolt panels from the top of the slope. For more details, please refer to the catalog or feel free to contact us.

• Civil Engineering Method
• Earthquake-resistant construction method

In developing a construction method utilizing lightweight embankment techniques, one of the issues identified is that the air-entrained lightweight embankment materials (air mortar, air milk) generate significant soil pressure due to fluidity and expansion pressure during curing. In conventional formwork methods, some form of reinforcement is typically implemented to resist and maintain these pressures. However, when using H-beams as reinforcement on the back of precast panels, the need for large machinery becomes a hindrance during the placement of lightweight mortar, compromising both workability and cost-effectiveness. Therefore, by applying tension to the NSC panels using rods and supporting the lower edge of the panels in a cantilever beam configuration, it has become possible to construct vertical walls, sloped walls, and curved walls. This achievement has led to significant reductions in construction time and costs, resulting in the completion of a technology capable of building exceptionally robust structures that have not been possible before. *For more details, please contact us or download the PDF.*

• Retaining wall
• Civil Engineering Method
• Road construction

In recent years, Japan has experienced natural disasters that can destroy everyday life, starting with the Great East Japan Earthquake. With each disaster, it has become an era where everyone feels anxious, wondering, "Is my home okay?" and "Is my workplace okay?" In light of this, our company has seriously discussed how we can contribute to society with technology focused on ground stability, and we have established a new "Construction Department" to launch a new business that leverages our experience and achievements in specialized civil engineering work. We will create a safer and more secure living environment for our customers, not only through new construction, renovations, repairs, and maintenance, but also through energy-saving measures and foundation and underground countermeasures.

• Renovation and repair methods
• Roof and gutter construction
• Waterproofing work

In recent years, Japan has experienced natural disasters that can destroy everyday life, starting with the Great East Japan Earthquake. Each time a disaster occurs, it has become an era where everyone feels anxious, wondering, "Is my home okay?" or "Is my workplace okay?" In light of this, our company has seriously discussed how we can contribute to society with technology specialized in ground stability. We have established a new "Construction Department" and are launching a new business that leverages our experience and achievements in specialized civil engineering work. We will create a safer and more secure living environment for our customers, not only through new construction, renovations, repairs, and maintenance, but also by implementing energy-saving measures and addressing foundation and underground issues.

• Renovation and repair methods
• Roof and gutter construction
• Waterproofing work

Our painting work comes with a long-term warranty from the Mastics Business Cooperative. Exterior painting work... 5 years Ironwork painting... 3 years Waterproofing work... 10 years

• Renovation and repair methods
• Waterproofing work

What are reliable ground improvement methods for liquefied ground? - The occurrence of earthquakes cannot be predicted. - The magnitude of earthquakes cannot be predicted. - The presence or absence of liquefaction cannot be predicted. - The extent of liquefaction cannot be predicted. - The amount of differential settlement due to liquefaction cannot be predicted. - The cost of repair work cannot be predicted. Therefore, based on the premise that some degree of differential settlement damage to single-family homes during an earthquake is unavoidable, we considered that by incorporating a mechanism during new construction that allows for leveling a tilted foundation using a mode cell anchor bolt with an adjustable length via a movable nut, it would be possible to carry out repairs without compromising the original strength of the foundation. The mode cell method, realized for the first time with the mode cell anchor bolt, is the solution.

• Pile and foundation work
• Renovation and repair methods
• Housing structure technology/long-term superior housing technology

The High Grip Grout Method is a grouting technique that enhances the prevention of chemical leakage from drilled holes using ground packers, ensures a large source of chemical penetration with special sealing materials, and improves injection efficiency through a centralized management system for chemical injection. *NETIS Registered Technology: CB-180028-A [Ground Packers] Ground packers are designed with a structure that prevents the leakage of filling materials (a double structure of fabric and rubber), which suppresses shrinkage after the expansion of the ground packer and enhances the adhesion between the drilled hole and the ground packer. This prevents the leakage of chemicals from the drilled hole. [Special Sealing Materials] The sealing materials use a special substance that fluidizes when reacting with chemicals, protecting the hole walls during drilling and ensuring a large penetration area during chemical injection. This allows for a reduction in injection pressure and the creation of a large-diameter modified body with a diameter of 2.5 meters. [Injection Management System] The system used in this method can simultaneously manage multiple chemical injection pumps (16 points). This improves the efficiency of injection and achieves cost reduction through shortened processes. *For more details, please refer to the catalog or feel free to contact us.

• Ground foundation construction method

The "Super Multi-Point DP Method" enables injection at 16 points with a single unit and allows for approximately 100,000 liters of injection per day with two units (32 points), making it a soil purification method. It employs construction management technology using computers and has developed compact, low-noise, and low-vibration construction equipment, making it versatile for various applications. It is capable of injecting various liquids, including solution types, suspension types, bio (nutrients), and Fenton (catalysts and oxidants). 【Features】 - Variable discharge of 1 to 10 liters per minute per point - Injection management system that monitors and controls flow rate and injection pressure - Usable in narrow spaces around existing residential land and structures - Extremely low-noise equipment (except for the generator) For more details, please feel free to contact us.

• Ground improvement
• Civil Engineering Method

The jet grouting method is a technique that uses ultra-high-pressure jet fluids to cut into the ground and improve the soil. There are two types of jet grouting methods: the "JSG method," which applies pressure to the curing material while excavating the soil and simultaneously mixes the soil with the curing material to create a cylindrical solidified body, and the "column jet method," which cuts the soil with ultra-high-pressure water, discharges the slurry to the surface while filling it with curing material, also creating a cylindrical solidified body. These methods can accommodate soil improvement under various geological conditions, depths, and other circumstances. 【Features】 ■ Reliable and certain construction is possible ■ A wide range of improvements that are not affected by the target soil type ■ High adhesion construction is possible ■ Large-diameter soil improvement can be achieved with small holes, allowing for closer construction to buried objects ■ Appropriate improvement strength can be set according to the improvement purpose ■ Economical and safe materials ■ Versatile mechanisms and compact equipment *For more details, please feel free to contact us.

• Ground improvement
• Civil Engineering Method
• Ground foundation construction method

The "Expacker Method" is a technique developed with a focus on the ability to achieve extensive solidification with a large discharge volume at low injection pressure by permeating from a large columnar space, in contrast to conventional chemical injection methods. It is an injection method based on the principle of columnar permeation layering. Multiple injection outer pipes with several bags and discharge ports are installed in the designated improvement area, and by injecting into the inner pipe, the bags are expanded and anchored to the ground to form packers. Grout is then discharged from the inner pipe into the columnar space between the upper and lower packers, allowing for wide-range permeation and rapid construction of large volumes of soil. [Features] ■ Rapid construction of large volumes of soil ■ Cost-effective ■ High quality ■ Liquefaction prevention ■ High-strength ground improvement For more details, please feel free to contact us.

• Ground foundation construction method
• Ground improvement
• Civil Engineering Method

The "RJP Method" is a ground improvement technique that creates cylindrical improved bodies with a diameter of 2.0 to 3.5 meters in the ground by injecting ultra-high-pressure water jet fluid (Aqua Jet) and air jet fluid, as well as ultra-high-pressure curing material jet fluid (Abrasive Jet) and air jet fluid, through a two-stage injection system using a merging method from a monitor attached to the tip of a multi-pipe rod, while rotating and pulling up. 【Features】 ■ By using a new type of ultra-high-pressure slurry pump that discharges 100 L/min of curing material at a regular pressure of 40 MPa, large cross-section improvements can be made across all ground types. ■ The improvement cross-section can be freely selected due to the oscillation mechanism. ■ Strength adjustments can be made according to the improvement purpose. ■ High quality. ■ Cost-effective. *For more details, please feel free to contact us.

• Ground improvement
• Civil Engineering Method
• Ground foundation construction method

In recent jet grouting methods, there has been a demand for high-speed construction on site. Additionally, the jet grouting method always faces issues such as the use of large amounts of hardening materials and the discharge of significant amounts of slurry. The concept of the PJG method allows for the adjustment of the improvement range in necessary areas, leading to a reduction in the amount of hardening materials used and the volume of slurry discharged. By enabling even faster construction, we have achieved further reductions in the use of hardening materials and slurry volume. *For more details, please feel free to contact us.*

• Ground improvement
• Civil Engineering Method
• Ground foundation construction method

**Principle** To address the shortcomings of the jet grouting method, we have developed a new construction device and a porous pipe. The most significant feature of this method lies in the mechanism for discharging the cut spoil. Traditionally, the jet grouting method relied solely on air lifting for spoil discharge. In contrast, the MJS method forcibly sucks the spoil into a dedicated pipe and transports it to the surface, allowing for construction at any angle from horizontal to diagonal. Additionally, by adjusting the amount of spoil discharged based on pressure management within the ground, this method enables the suppression of ground deformation such as uplift and settlement associated with injection mixing. **Features** - Capable of horizontal, diagonal, and vertical construction - Does not affect surrounding ground - Enables ground improvement at great depths - Consolidates spoil treatment - Prevents contamination due to improvement - Allows selection of improved body *For more details, please feel free to contact us.*

• Ground improvement
• Civil Engineering Method
• Ground foundation construction method

The "Shallow-Deep 4-Axis Method" is a mechanical mixing ground improvement method that discharges cement slurry from a dedicated rod tip and mixes it during excavation. A technical management system for large cross-section construction (φ700mm×4 axes = 1.46m²) has been established using compact construction machinery. With an automatic posture control system mounted on a backhoe, a maximum improvement depth of 6m is possible, while a leader method allows for construction up to 15m deep. This method provides flexible ground improvement solutions, even in narrow construction sites, as well as large-scale ground improvement projects. 【Features】 ■ The Shallow-Deep 4-Axis processing machine can be mounted on general-purpose backhoes or self-propelled small cranes. ■ By following the operation manual for settings, stable ground improvement work can be achieved. ■ Two types of construction machines are available: one using an automatic posture control backhoe and another using a telescopic crawler crane in a guide leader method. ■ Patent No. 4920116 ■ NETIS Registration No.: KT-170044-A For more details, please refer to the catalog or feel free to contact us.

• Ground foundation construction method
• Ground improvement
• Civil Engineering Method

The "TSC Method" is a mechanical deep mixing treatment method that constructs a ground improvement body by injecting cement-based solidification material slurry into the ground while mixing and stirring it with the original ground from the tip of a special excavation and mixing device equipped with TSC bars. The need for long-term stability of foundations for buildings and structures has led to this method, which solidifies soft ground in a cylindrical shape, obtaining "Construction Technology Review Certification." 【Features】 ■ TSC Method diffusion wings (patent pending) ■ By using a dedicated excavation and mixing device for this method, the phenomenon of soil co-rotation is suppressed - Improves mixing performance to create high-quality solidified bodies ■ Two-way stirring is the standard construction cycle ■ Real-time management is possible using construction management devices For more details, please feel free to contact us.

• Ground foundation construction method
• Residential foundations
• Earth retaining wall/foundation reinforcement

This construction method is a mechanical mixing deep mixing treatment method that creates columnar ground improvement bodies by excavating and mixing the ground while discharging a slurry of cement-based solidifying material. It has a maximum design strength of Fc=2,500KN/m2, which is high strength, and the dedicated special mixing machine has high mixing efficiency, allowing for the creation of high-quality columns in sandy soil, clayey soil, loam, and other ground types. **Features of the SAT Column Method** - Building technology performance certification GBRC No. 18-28 - Use of a dedicated mixing machine for the SAT column method - Supports various improvement forms according to purpose, including pile type (pile arrangement, circular arrangement, lap arrangement), block type, and wall type - Thorough management system with real-time management devices to construct safe and robust columns - Capable of selecting equipment from small to large heavy machinery and related equipment to accommodate a variety of sites, including buildings, civil engineering structures, and temporary structures - Achieves low cost with a lineup of solidifying material amounts with a reduced increase factor (variation coefficient of 25%) and improvement diameters ranging from φ400 to 1600mm *For more details, please download the PDF document or feel free to contact us.*

• Ground foundation construction method
• Civil Engineering Method
• Ground improvement

The "CDM-Land4 Method" is a construction method that utilizes a set of four axes, allowing for simultaneous construction with four axes. This results in reduced construction time, lower costs, and excellent mixing performance, enabling the creation of high-quality improved ground. With the development of the extension rod, deep construction has become possible, achieving a construction height approximately 10 meters lower than conventional construction machinery and realizing a more efficient construction cycle compared to traditional extension methods. 【Features】 ■ Significant reduction in construction time ■ Contribution to cost savings ■ Creation of high-quality improved ground with minimal variation due to simultaneous four-axis mixing ■ High construction precision ■ Compatibility with a wide range of improvement methods For more details, please refer to the catalog or feel free to contact us.

• Ground foundation construction method
• Ground improvement
• Civil Engineering Method

We have made it possible to carry out construction that was previously impossible. - Foundation work inside the gymnasium: Previously, part of the wall had to be demolished to bring in machinery, but it is now possible to bring in equipment without altering the current state. - Foundation work along the railway: Work that requires crane booms to extend higher than the tracks is typically done at night, but since we do not use cranes, daytime work is possible. - Bridge widening and under-beam work: Heavy machinery can access the existing under-beam area, allowing vehicles to continue using the existing bridge during construction. - Work under high-voltage power lines: Construction under high-voltage power lines is also feasible.

• Foundation construction

The "Iron Powder Bubble Method" is a soil purification technique that encapsulates iron powder in bubbles using compact plant equipment, ensuring reliable delivery of the liquid underground. The ball bearing effect of the bubbles reduces drilling resistance. The amount of water used is about one-fifteenth of that used in conventional methods. 【Features】 ■ Excellent improvement effect ■ Good construction efficiency ■ Environmentally friendly ■ Usable in narrow spaces *For more details, please refer to the catalog or feel free to contact us.

• Ground improvement
• Civil Engineering Method

The "Mechanical Agitation Method" is a soil purification technique that allows for the delivery of bio-nutrients and Fenton (catalysts and oxidants) among others. It can be implemented in compact plant facilities, making it suitable for narrow spaces. 【Features】 ■ Ensures reliable agitation and mixing with a diameter of 800 to 1000 mm ■ Ground reinforcement (foundation) is possible by delivering solidifying agents *For more details, please refer to the catalog or feel free to contact us.

• Ground improvement
• Civil Engineering Method

The "OHO Drain Method" is a simultaneous embedding technique that suppresses the discharge of excavated soil to the surface and allows for the installation of drainage material, which becomes a drainage medium upon completion of the drilling, at a specified depth. By embedding drainage material in ground with a high potential for liquefaction, it dissipates the rise and accumulation of excess pore water pressure that occurs during an earthquake, thereby preventing ground liquefaction. It enables dry drilling without the use of drilling water or additives, allowing for a clean construction process. 【Application Examples】 - Liquefaction countermeasures for foundation ground of buildings and underground structures - Liquefaction countermeasures for manholes *For more details, please feel free to contact us.

• Ground foundation construction method
• Ground improvement
• Earth retaining wall/foundation reinforcement

The "Pure Pile Method" is a foundation reinforcement technique for single-family homes that solidifies cement milk into pile shapes underground, demonstrating high quality and high load-bearing capacity regardless of soil type. The construction procedure involves only one round of excavation and filling, allowing for fast construction speed and the creation of high-quality columns. By adopting a conical excavation head, the risk of soil clumping contamination during excavation has been eliminated. 【Features】 - Does not mix cement milk with the ground - The quality of the pile-shaped columns is not affected by soil type at all - Can be applied even in humus soil where solidification is difficult with conventional column improvement methods - Due to the principles of the construction method and procedure, the ground is not loosened, resulting in high vertical load-bearing capacity - Straight rods or spiral rods can be used according to soil type - Since straight rods do not have a soil discharge mechanism, there is almost no generated residual soil For more details, please feel free to contact us.

• Ground foundation construction method
• Residential foundations
• Earth retaining wall/foundation reinforcement

**Features of Gaia F1 Piles** ■ Highly Reliable Piles Certification: - Driven: Minister of Land, Infrastructure, Transport and Tourism Certification, Japan Building Center TACP-0481 TACP-0482 - Extracted: Japan Building Center FD0560-01 FD0563-02 ■ Overwhelming Variety of Pile Types 56 types of piles allow for economical design through variations. ■ High Load-Bearing Capacity With a tip diameter ranging from 200 to 1150 mm, the average N value at the pile tip is 81 to 23430 kN per pile. ■ Environmentally Friendly The rotary insertion method allows for construction without residual soil, resulting in no industrial waste generation. ■ Low Cost High load-bearing capacity and a variety of piles eliminate waste.

• Pile and foundation work
• Piles, caissons, sheet piles
• Ground foundation construction method

**Features of Tecot Piles** ■ Highly Reliable Piles Tecot Piles - Driven piles certified by the Minister of Land, Infrastructure, Transport and Tourism, Japan Architectural Center TACP-0355 TACP-0356 Tecot Pile SR - Driven piles certified by the Japan Architectural Comprehensive Testing Institute GBRC-10-08 ■ High Load-Bearing Capacity Adopts a tip wing diameter of 250 to 650 mm with a load-bearing coefficient α = 270 ■ Reliable Quality Control Conducts slide weight tests to confirm the load-bearing capacity of the pile tip ■ Environmentally Friendly Since it is installed by rotary penetration, construction can be done without residual soil, generating no industrial waste. ■ Low Cost In addition to standard round steel pipes, square steel pipes are also used, enabling low costs.

• Piles, caissons, sheet piles
• Ground foundation construction method
• Pile and foundation work

The "Soil Bag Method" is an environmentally friendly foundation reinforcement technique that does not use any solidifying materials, including cement, by utilizing the "D·Box." The "D·Box" generates significant friction between soil particles, providing various effects such as ground reinforcement, vibration reduction, and liquefaction countermeasures. In particular, it can compact itself regardless of ground reaction, allowing for reinforcement effects even in extremely soft ground such as marshes, which are typically considered difficult. 【Features】 ■ The D·Box is completely permeable to water, so it does not affect the underground environment when installed in the soil. ■ Since the D·Box essentially just encapsulates soil particles, it can reduce CO2 emissions. ■ It has effects equivalent to surface improvement, allowing for efficient ground reinforcement construction. ■ It simultaneously achieves ground reinforcement and vibration reduction, offering excellent cost-effectiveness. ■ It can increase the strength of the surrounding ground where the D·Box is installed. For more details, please feel free to contact us.

• Ground foundation construction method
• Residential foundations
• Earth retaining wall/foundation reinforcement

The "Hume Pipe Pushing Method" is a pushing method that allows direct access to an existing manhole shield when the target shaft cannot be excavated or is undesirable to excavate. The excavation machine's outer shell is made of CPC steel pipe (Chemical Prestressed Concrete Steel Pipe), and the necessary driving equipment for excavation is incorporated in a recoverable state. After reaching the target, only the built-in equipment of the excavation machine is recovered, while the outer shell remains as a pipe (structure). 【Features】 ■ No need for construction costs for the target shaft and cutting edge excavation work ■ Cost reduction ■ Environmental protection ■ Avoidance of total loss of the excavation machine For more details, please feel free to contact us.

• Civil Engineering Method
• Water Supply Facilities
• Sewerage facilities

The "CMT (Compound Mini Tunnel) method" is not a single system method, but a general term for a system that responds to various construction conditions. There are "CMT ultra-long-distance propulsion system," "CMT floating system," "CMT rock propulsion system," "CMT cobble and gravel ground propulsion system," "CMT face obstruction removal propulsion system," and "CMT ultra-soft and quicksand ground propulsion system." *For more details, please refer to the catalog or feel free to contact us.*

• Civil Engineering Method
• Water Supply Facilities
• Sewerage facilities

The "SS Small Method," which has an overcutting function, rapidly mixes high-concentration mud water containing a large amount of excavated soil and clogging material sprayed onto the face in a chamber, creating a thick, high-concentration stable liquid. By pressurizing and filling the face and tail voids, this method achieves high stability of the face and is based on the concept of "stabilizing liquid methods" such as underground continuous soil retaining wall methods and reverse circulation methods. For more details, please feel free to contact us.

• Civil Engineering Method
• Water Supply Facilities
• Sewerage facilities