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The "TNF method" allows for the creation of stable foundations at low cost and in a short period, even on soft ground, by integrating the ground improvement layer, foundation, and slab in a grid pattern. The "TNF-D method" enhances the foundation part by making it "trapezoidal," increasing the distribution of forces. This further reduces the risks of uplift and ground subsidence due to decreased stress transmission. Like conventional methods, it can be constructed without underground beams or piles, and formwork is also unnecessary. 【Features】 ■ Reduces foundation structure costs ■ Shortens construction period by reducing types of work ■ No need for foundation formwork, addressing labor shortages ■ Suppresses stress transmission and improves stability *For more details, please refer to the materials available for download in PDF format. Feel free to contact us with any inquiries.

• Ground foundation construction method

The "TNF Method" is a special foundation construction method that achieves low-cost foundations through shallow ground improvement. It features a lattice-like structure that integrates the ground improvement body and the foundation. (Two-stage improvement: primary and secondary improvement) Since the foundation is directly constructed on the secondary improvement layer, it can be completed at a low cost and in a short period. The lattice-like structure provides an "enclosure effect" that holds soil and offers very high safety in supporting buildings. This document introduces the construction process with accompanying photographs. [Included Items] ■ What is the TNF Method ■ TNF Method Construction *For more details, please refer to the PDF document or feel free to contact us.

• Ground foundation construction method
• Special Construction Method

This is a catalog comparing various aspects such as the characteristics and construction periods of the "pile method," which uses a hard lower stratum as the supporting layer, and the "TNF method," which uses the surface ground as the supporting layer. [Contents] ■ Applicable Ground ■ Characteristics of Pile Method / TNF Method ■ Construction Period Comparison (Examples) ■ Scrap Cost Comparison ■ Heavy Machinery Used For more details, please refer to the catalog or feel free to contact us.

• Ground foundation construction method
• Foundation construction

Shinagawa Shoji Co., Ltd. was established in August 1998, inheriting all business rights from "Shinagawa Shoji Co., Ltd.," which has a wealth of experience as a special sales agent for Onoda Cement Co., Ltd., one of the predecessors of the current Pacific Cement Co., Ltd. Under full investment from Pacific Cement Co., Ltd., we have restarted as "Shinagawa Shoji," a specialized trading company for construction materials. We accurately capture our customers' needs and respond with rich originality. 【Business Activities】 - Sales of various construction materials and related services - Architecture, civil engineering, and various construction projects For more details, please contact us or download the catalog.

• Earth retaining wall/foundation reinforcement
• Earthworks
• Ground improvement

The T-BAGS vibration reduction method "Post-Construction Vibration Measurement" is a catalog that includes information on the construction locations of the T-BAGS vibration reduction method, measurement sites, measurement details, and measurement results. In all locations, both horizontal and vertical maximum accelerations were reduced. 【Measurement Locations】 ○ Under the JR San'in Main Line elevated section ○ Under the Inbi Line elevated section ○ Top surface of the T-BAGS vibration reduction method construction floor For more details, please contact us or download the catalog.

• Ground foundation construction method

The TNF Method and TNF+ Method "Report on Disaster-Affected Properties from the Great East Japan Earthquake" is a catalog that details the conditions of properties utilizing the TNF Method during the Great East Japan Earthquake. Properties using the TNF Method showed almost no impact from seismic shaking compared to nearby conventional construction properties, with no interior or exterior damage, no steps or cracks, and some properties with exterior damage still able to operate. 【Featured Cases】 - Home center store in Namie City, Ibaraki Prefecture (TNF Method) - Seismic intensity 6 weak - Home center store in Utsunomiya City, Tochigi Prefecture (TNF Method) - Seismic intensity 6 strong - Furniture store in Sendai City, Miyagi Prefecture (TNF Method) - Seismic intensity 6 strong For more details, please contact us or download the catalog.

• Ground foundation construction method

The "WT Method + TNF Method" is a seismic reinforcement method for underground piping. It includes the "Underground Tank Rising Section and Base (WT Method)" which achieves a retaining effect through cement slurry improvement using a special mixer, measures against cutting due to tank foundation uplift, and piping reinforcement (seismic) effects achieved through "Underground Piping Surrounding Improvement (WT Method)." Additionally, the "Building Ground Improvement (TNF Method)" prevents differential settlement with powder improvement and eliminates the need for foundation formwork due to its soil formwork design, and the "External Ground Improvement (TNF Method)" provides liquefaction suppression effects through improvement. 【Features】 [WT Method] ○ Construction is possible on soft ground ○ No sheet piles or supports are required ○ Patent Number: No. 4039445 [TNF Method] ○ Construction is possible at low cost and in a short period ○ Patent Number: No. 3608568 For more details, please contact us or download the catalog.

• Renovation and repair methods
• Earthquake-resistant construction method

The "Improved Body WT Method" is an underground water storage method consisting of a ground improvement layer and a permeable layer. The construction method can be selected based on the site’s water level, soil quality, and intended use. It is effective in suppressing the heat island phenomenon, reducing runoff load to rivers, making effective use of stored water, and optimizing land use. 【Features】 - Construction is possible on soft ground - No need for soil retaining sheet pile work - Shorter construction period - No need for rebar, ready-mixed concrete, or formwork - Patent number: 4039445 For more details, please contact us or download the catalog.

• Waterproofing work

The "TNF+ Method" is a construction technique that creates a stronger foundation by adding mid-layer improvements to the TNF method. By arranging the mid-layer improvements in a grid pattern along the improvement layer, it is possible to enclose deeper soil layers, thereby increasing ground strength and reducing settlement, making it suitable for mid- to high-rise buildings. 【Features】 ○ Significant soil enclosure effect ○ Pipe insertion: Utilized for geothermal heat pump ○ At the time of land return, the improved body can be crushed and dismantled at low cost using water jet technology with the pipes ○ Patent number: No. 4730477 For more details, please contact us or download the catalog.

• Ground improvement materials

The "TNF Hybrid Method" is a safe and reliable liquefaction countermeasure construction method that can be implemented at a low cost. After the primary improvement construction of the TNF method, log piles are driven into the liquefaction layer. This driving process densifies the loose sandy ground (increasing the N value). 【Features】 ○ Log pile driving ○ Contributes to CO2 reduction through carbon storage effects from the use of wood ○ Patent number: No. 5494880 For more details, please contact us or download the catalog.

• Ground foundation construction method

The "T-BAGS Vibration Damping Method" utilizes T-BAGS (sandbags) stacked in two layers to leverage the functions of the bag material and filler material, effectively reducing vibrations. Two layers are stacked under the floor and under the foundation. This method allows for the construction of a safe and reliable vibration damping system at a low cost. 【Features】 ○ Reduces scattering and tipping of indoor items ○ Minimizes shaking and accelerates recovery ○ Patent number: No. 5196059 For more details, please contact us or download the catalog.

• Safety and consumables
• Sandbags

The "TNF Method" integrates ground improvement with foundations and slabs, allowing the building's load to be distributed over a surface. Additionally, it exerts a force that confines the unmodified area at the bottom of the primary improvement (in a grid-like pattern), preventing soil from escaping and stabilizing the support for the building (this is referred to as the TNF confinement effect). Traditionally, in cases of weak ground, pile methods supported by hard strata below have been mainstream; however, the TNF Method enables the realization of low-cost foundations that use the surface ground as the support layer. 【Features】 - Low-cost special foundation method through shallow layer improvement - The TNF Method typically does not have underground beams - Integrates the improved body with the foundation and slab, efficiently transmitting the building load to the ground - Patent number: No. 3608568 For more details, please contact us or download the catalog.

• Ground foundation construction method

The "TNF Method Comprehensive Catalog" includes the low-cost special foundation method "TNF Method" through shallow improvement, as well as sandbag seismic reduction methods, liquefaction countermeasures, and various other methods. It also features construction procedures, examples, and reports on damaged properties from the Great East Japan Earthquake. *Exclusive for Ipros users: We are currently offering the comprehensive catalog and comparison materials for free! [Featured Products] ○ TNF Method ○ T-BAGS Seismic Reduction Method ○ TNF Hybrid Method ○ TNF+ Method ○ Improved Body WT Method, and others For more details, please contact us or download the catalog.

• Ground foundation construction method