三信建設工業 List of Products and Services

We would like to introduce the "Soil Nailing Method" and "High-Spec Nailing Method" of San Shin Construction Industry's ground reinforcement soil engineering techniques. The Soil Nailing Method is a technology that has developed as a design approach suited to the realities of our country, with over 570 projects and a construction area exceeding 260,000 m² in Japan to date. Additionally, the High-Spec Nailing Method is a ground reinforcement soil engineering technique that reliably creates reinforcement materials with significant resistance within the ground by using a core material equipped with a bag-type reinforcement (HSN packer). 【Features of the Soil Nailing Method】 ■ Efficiently constructs stable retaining walls (earth pressure resisting structures) ■ Allows for reverse construction, enabling safer operations ■ High adaptability to deformation and excellent seismic performance ■ Capable of adjusting reinforcement material placement in response to changes in ground conditions during construction ■ Generates minimal noise and vibration during construction, making it easy to work in narrow spaces and steep slopes ■ Applicable as a reinforcement method for existing structures *For more details, please refer to the PDF document or feel free to contact us.

• Reinforced earth wall
• Civil Engineering Method

The "Pin-up Method" is a seismic reinforcement technique aimed at stone masonry walls constructed in self-supporting ground. By partially injecting a hardening agent into the backfill stones behind the masonry, the stones are solidified. This method integrates the rubble stones and backfill stones, preventing displacement of the masonry wall's front and loosening of the backfill stones, thereby enhancing the seismic resistance of the masonry wall. 【Features】 ■ By partially solidifying the backfill stones in the masonry wall, it is economically advantageous while maintaining the drainage properties of the masonry wall. ■ The use of relatively short reinforcement materials allows for construction with compact equipment. ■ Construction can be carried out in a space-saving manner. *For more details, please refer to the PDF document or feel free to contact us.

• Reinforced earth wall
• Earthquake-resistant construction method

The "MITS Method" is a ground improvement technique that utilizes a modified machine based on a backhoe, which employs two mixing systems: medium-pressure injection of slurry and a special mixing blade. It combines the characteristics of mechanical mixing methods and jet grouting methods, allowing for excavation and mixing with the mixing blade while simultaneously injecting cement slurry at medium pressure (P = 5 to 15 MPa). It can create large-diameter improvement bodies of up to 1600 mm. 【Features】 ■ Creation of new benefits through the combination of injection mixing and mechanical mixing ■ Ability to select machinery that fits the construction conditions ■ The improvement machine is compact and lightweight, making it suitable for narrow sites ■ Improved workability through offset construction ■ Capability to perform construction both below and above the machine position *For more details, please refer to the PDF document or feel free to contact us.

• Ground foundation construction method

The "Multi-Fan Method" is a high-pressure injection mixing technique that constructs an improved cross-sectional shape (multi-fan shape) by combining fan-shaped sections. By combining two types of fan shapes, it enables a more efficient arrangement of improvement bodies in grid-like or wall-like configurations, allowing for more economical construction. 【Features】 ■ Smaller improvement volume compared to other methods (wall-like improvement) ■ High precision construction through a rotation control mechanism ■ Injection mixing performance of the V-JET method *For more details, please request the materials or view the PDF data available for download.

• Ground improvement
• Ground foundation construction method
• Earthquake-resistant construction method

The "KS-S・MIX Method" is a large-diameter deep mixing treatment using a relative stirring method. Despite being a single-axis specification, it allows for construction with more than double the improved cross-sectional area compared to conventional slurry stirring (φ1.0m, dual-axis), and the relative stirring function can solve issues such as the circulation of improved soil. 【Features】 ■ Creation of large-diameter improved bodies using a high-torque electric motor ■ Applicable to hard ground ■ Production of high-quality improved bodies with minimal variation through relative stirring of outer and inner wings ■ Transition from planar stirring to three-dimensional stirring ■ Prevention of circulation and entrapment ■ Lateral deformation blocking by outer vertical wings ■ Smaller horizontal displacement compared to conventional methods ■ NETIS registration number: KK-100054-A *For more details, please refer to the catalog or feel free to contact us.

• Ground improvement
• Ground foundation construction method
• Earthquake-resistant construction method

The "Grand Flex Mall Method" is a technology that combines flexible boring techniques capable of controlling straight and curved paths underground with various ground improvement technologies. This method addresses various challenges in ground improvement directly beneath existing structures when work cannot be performed from above the existing structures or when the available surrounding land is limited. It can accommodate a wide range of target grounds and achieve construction objectives such as soil purification and cavity filling, not just liquefaction countermeasures. 【Features】 ■ Direction control ■ Drilling position confirmation ■ Double pipe structure ■ Impact penetration For more details, please refer to the catalog or feel free to contact us.

• Ground improvement
• Ground foundation construction method
• Earthquake-resistant construction method

The "WILL Method" is a construction technique that forcibly stirs and mixes in-situ soil by injecting slurry-like solidifying agents or improvement materials through a special mixing blade attached to the tip of a backhoe-type base machine, thereby forming a stable improved body. By using two types of ribbon screw mixing blades, it can accommodate not only soft, viscous soil layers but also compact sandy soil layers with an N value exceeding 30. It achieves low vibration and low displacement with a compact base machine and low-pressure injection. 【Features】 ■ Construction of high-quality improved bodies ■ High excavation performance ■ Reduced environmental impact ■ High mobility and safety ■ High reliability *For more details, please refer to the catalog or feel free to contact us.

• Ground improvement
• Ground foundation construction method
• Earthworks

The "V-JET Method" is a high-pressure injection mixing technique that cuts the ground using ultra-high-pressure spraying of cement-based hardening materials, creating cylindrical improved bodies at high speed. By using a special dedicated monitor with a step counter-injection mechanism, more efficient cutting is possible, achieving faster construction and larger diameter improved bodies. The entire process from drilling to construction is carried out continuously with a single construction machine, allowing for efficient construction with compact equipment. 【Features】 ■ High-speed construction of large-diameter improved bodies ■ Adoption of direct drilling method ■ Reduction of sludge discharge ■ Measures against ground liquefaction ■ Excellent cost-effectiveness For more details, please refer to the catalog or feel free to contact us.

• Ground improvement
• Ground foundation construction method

The "DJM Method" involves supplying powdered improvement materials into soft ground and forcibly mixing them with the in-situ soil to chemically react the soil and the improvement materials, thereby stabilizing the soil properties and enhancing strength. The improvement materials are transported by air flow and discharged into the voids created by the rotation of the mixing blades at their base. The discharged improvement materials are evenly distributed across the entire rotational trajectory of the mixing blades and are further mixed with the in-situ soil. 【Features】 ■ Any improvement material is acceptable ■ Reliable construction management ■ No need for sludge treatment ■ Safe and environmentally friendly method ■ Excellent workability For more details, please refer to the catalog or feel free to contact us.

• Ground improvement
• Ground foundation construction method

The "SANSIN Construction Industry General Catalog" is a comprehensive catalog of Sanshin Construction Industry Co., Ltd., which specializes in special foundation civil engineering work. It includes various ground improvement methods tailored to ground conditions and construction environments, as well as methods for anchors, reinforced soil, and slope protection. [Contents] ■ Ground Improvement ■ Anchors ■ Reinforced Soil & Slope Protection ■ Piles & Foundations ■ Consolidation & Drainage *For more details, please contact us or download the catalog.

• Other civil engineering works
• Earth retaining wall/foundation reinforcement
• Motor graders, roadbed machines, compaction machines