ジオテック List of Products and Services

"Ganko Oyaji" is a reinforcement system that improves the shear strength, ductility, and seismic resistance of concrete slab foundations by applying carbon fiber sheets with a matrix resin. Since it involves the application of high-strength carbon fiber, it results in a strong, cost-effective, and aesthetically pleasing finish, making it suitable for existing homes. Reinforcement is done by applying carbon fiber with matrix resin to unreinforced foundations. Additionally, for cracked foundations, epoxy resin is injected under low pressure before applying the carbon fiber. 【Features】 - High strength (the cracked unreinforced foundation becomes significantly stronger than when it was new) - High durability (particularly resistant to salt damage and corrosion) - Increased shear strength, ductility, and seismic resistance - Significantly reduced construction time, making it cost-effective (construction period of 3 to 5 days) - Minimal noise as heavy machinery is not used *For more details, please refer to the PDF materials or feel free to contact us.

The ETP method is a type of rotary penetration steel pipe pile with a tip wing, which is driven into the ground by rotating a steel pipe that has a triangular excavation auxiliary blade with a circular enlarged base welded to its tip.

High quality It is a reliable quality backed by numerous experimental results. Performance confirmation tests conducted on sandy soil, clayey soil, and loam have confirmed that the coefficient of variation is below 25%. Since the variability setting values have been obtained through performance confirmation tests, quality inspection is primarily conducted using "Inspection Method A." We will carry out highly reliable construction based on the technical guidelines of this method.

The Pure Pile Method (PP Method) uses a drilling rod equipped with a conical-shaped excavation head to excavate while pushing the ground laterally, constructing a pile-like column by replacing it with cement milk up to the support depth.

High-performance steel pipes are equipped with tip wings that are 3.0 times and 3.5 times the diameter of the steel pipe at the tip, suitable for clayey and sandy ground with equivalent N values of 5 to 15. Design using the equivalent N values from the SWS test (screw weight penetration test) is possible.

Compatible with all types of ground The Σ-i method is a highly versatile ground reinforcement technique that is compatible with all types of ground, including sandy, gravelly, and clayey soils. Design using the converted N values from SWS tests (screw weight penetration tests) and ram sounding tests is possible.

The Tiger Pile method combines the stable material strength of steel pipe pile methods with the large frictional force of soil cement column methods, compensating for the variability in column strength that is a disadvantage of the soil column cement method with the steel pipe, while the soil cement column method compensates for the small frictional force that is a disadvantage of the steel pipe pile method, effectively canceling out the shortcomings of both methods and demonstrating high bearing capacity.

The RES-P method is a type of piled raft foundation method. It involves driving pipes (thin steel tubes) into weak ground, strengthening the ground through the combined effect of the ground and the pipes to prevent settlement, and is a foundation reinforcement method for residential buildings.

Leading Edge Wing Easy to penetrate with a simple shape. Design possible with simple testing Design possible with SWS testing and ram sounding testing. Low noise, low vibration, and no spoil, environmentally friendly Extremely low vibration and noise, considerate of the surrounding environment, with no generation of residual soil, making it an environmentally friendly clean construction method.

When planning a basement for structures that exceed the design ground bearing capacity of 30 kN/m² → When it is necessary to embed the foundation to the angle of repose (30° line) For structures that are difficult to approve with ground improvement and would be over-spec with PC piles → Steel-framed buildings of 3 to 4 stories / retaining walls with a design ground bearing capacity of less than 100 kN/m², etc.

A support pile method using general structural carbon steel pipes STK-400 to support small-scale houses when the column improvement method cannot be applied, and when the building's load is supported only by the tip of the pile. This method is applicable when soft layers continue to a depth of GL-8.0m or more. In the case of steel pipe pile methods, there is a relationship between the building and the surrounding ground, and if adopted in areas where extreme ground subsidence occurs, it may lead to the phenomenon of the building lifting up (such as when embankment is done on extremely soft ground or ground with thick deposits of humus). The supporting ground for determining the length of the steel pipe pile is defined as having an N value of ≧15. The thickness of the supporting ground layer should, in principle, be continuous for more than 2.0m.

A method that involves spreading cement-based solidifying materials on soft ground, mixing, stirring, and compacting them with the original soil to create a slab-like solidified body. This method is applicable when the soft layer is distributed at a depth of GL-2.0m or shallower. However, it is not applicable if there is a water level within the improvement depth that makes mixing and stirring difficult, or if the improvement area extends to neighboring properties or roads, raising concerns about impacts on boundary blocks, neighboring houses, roads, etc. Good ground for determining the improvement depth is generally defined as a continuous layer of cohesive soil with an N value greater than 3 for cohesive soil and greater than 4 for granular soil.

A method of injecting and mixing cement milk (a mixture of cement-based solidifying material and water) into soft ground to create columnar improved piles underground. This method is applicable when the soft layer extends from GL-2.0m to approximately GL-8.0m. However, it is not applicable in cases where most of the soft layer consists of humus soil, where industrial or household waste is accumulated, where there is groundwater, or where buildings are constructed immediately after earthworks on former marshland. Good ground for determining the improvement depth is defined as a continuous layer of cohesive soil with an N value greater than 3, or granular soil with an N value greater than 4.

Geo-column method Surface improvement method Small diameter steel pipe pile method ETP method SMD steel pipe pile method ETP-G method RES-P method Tiger pile Σ-i method DM method Pure pile method Cross-wing column method

The "i-LIFT method" is a technique that injects grout into the ground to lift and restore tilted or sunken buildings while also enhancing the ground's bearing capacity. Since the injection is performed while continuously measuring with a high-precision leveling instrument, fine adjustments to the level are possible. Additionally, construction can be carried out with compact machinery, making it feasible even in areas with limited space between adjacent houses. This method allows for a reduction in construction time compared to conventional methods. 【Features】 ■ Fine adjustments to the level are possible ■ Construction is possible in areas with limited space between adjacent houses ■ Reduction in construction time ■ Can be implemented even if ground improvement has already been performed ■ Can be applied to measures against ground subsidence *For more details, please refer to the PDF materials or feel free to contact us.*

We provide evidence-based ground reinforcement construction that meets the needs of professionals involved in design and construction. Our company covers a diverse range of methods, including cement-based columns, steel pipe piles, and high-performance hybrid methods that combine these techniques, all of which have obtained building technology performance certifications and ministerial approvals. The biggest feature is the "optimal selection of methods" tailored to soil quality, surrounding environment, and structural loads. For example, we compare and examine the technical advantages of methods such as the Pure Pile method, which prevents soil mixing; the Tiger Pile method, which addresses humus soil; and the DM/ETP method, which minimizes environmental impact and excess soil costs without soil discharge, to derive the most economical and reliable design. By proposing a rational plan that thoroughly eliminates risks from an engineer's perspective, without biasing towards a single method, we strongly support your company's smooth project progress and ensure reliable quality management without setbacks.

This is a pile-type ground reinforcement method using small-diameter steel pipes that has received the architectural technology performance certification (GBRC Performance Certification No. 10-01) from the Japan Architectural Institute Foundation. A cast iron spiral wing (tip wing) is attached to the tip of the small-diameter steel pipe, and it is rotated and driven into the ground using a non-discharging construction method with rotation torque. Since the tip wing and steel pipe are bolted together, the welding strength does not limit the bearing capacity. The construction is low-noise and low-vibration, taking into consideration the surrounding environment, and since it does not use cement milk, there are no costs for residual soil disposal. The entire process from component manufacturing to transportation and construction has been thoroughly reviewed, achieving both high performance and excellent economic efficiency.

This is an environmentally friendly ground reinforcement method using advanced winged steel pipes, which has obtained the architectural technical performance certification from the Japan Architectural Comprehensive Testing Institute (GBRC Performance Certification No. 09-19 Revision 5). It employs steel pipe piles equipped with disc-shaped wings at the ends, enhancing penetration by providing 30mm notches above and below the wings, and effectively suppressing deviation during construction with the aid of a drilling assist bit at the tip. Ground surveys are typically conducted using the Screw Weight Penetration Test (SWS Test), and in cases where the supporting layer is deep or the ground is difficult to penetrate, a large dynamic cone penetration test (SRS Test) can be accurately employed. This method offers a clean, environmentally friendly solution with low vibration, low noise, and no generation of residual soil.

The ETP method is a type of rotary driven steel pipe pile construction that features a tip with a disc-shaped wing and a triangular excavation auxiliary bit. It has received certification from the Minister of Land, Infrastructure, Transport and Tourism (for sandy soil: TACP-0665, for clayey soil: TACP-0666) and a performance certification from the General Incorporated Foundation Japan Building Disaster Prevention Association (GBRC Performance Certification No. 12-20 Rev. 4), ensuring high bearing capacity and smooth construction. By avoiding the use of cement, it mitigates the risk of soil and groundwater contamination, and the no-excavation construction eliminates the need for soil disposal costs. Additionally, it allows for the removal of piles through reverse rotation and employs compact machinery, enabling low-noise and low-vibration construction, thus achieving an economical design and construction that considers the surrounding environment.

This is a type of piled raft foundation method that has obtained the architectural technical performance certification (Performance Evaluation No. 04-02) from the Japan Architectural Comprehensive Testing Institute. It involves driving pipes (thin steel pipes) into weak ground, enhancing the bearing capacity through the combined action of the ground and the pipes, and preventing building settlement. Although this method arranges the pipes in a pile-like manner, it is categorized as a planar ground reinforcement method similar to "surface improvement methods" due to the close placement of the pipes rather than being a pile reinforcement. The design, construction, and supervision are centralized under the "Single-Family Housing Foundation Ground Reinforcement Research Association," and a reliable quality management system is provided under the guidance of Soil Design Office Co., Ltd.

The "SMD (Super Mini Drill) Pile Method," which has received certification from the Ministry of Land, Infrastructure, Transport and Tourism, utilizes steel pipe piles equipped with outer wings that are 2 to 3 times the diameter of the pile at the tip, along with unique inner wings and bites. During the rotary penetration, the tip is open, allowing soil to enter the steel pipe, which helps suppress misalignment during construction. Upon completion of penetration, the inner wings compact the soil inside firmly, achieving a high bearing capacity equivalent to complete closure, with a tip bearing capacity coefficient of α = 250. This method is a high-quality and eco-friendly foundation technique that generates no construction waste above ground, thereby eliminating industrial waste and reducing environmental impact and the risk of secondary pollution.

This is a highly reliable pile foundation reinforcement method for small-scale buildings, including residential structures. It features a new spiral-shaped tip wing integrated with four excavation blades at the tip, allowing it to penetrate the ground while rotating. The rotary insertion construction minimizes vibration and noise, and it establishes an environmentally friendly design that generates no excavated soil (residual soil) during construction. Furthermore, by adopting an improved tapered tip wing, it allows for the selection of several types of steel pipes for a single tip structure, successfully achieving dramatic cost reductions and economical design while maintaining high construction performance and safety.

This is a slurry-based mechanical mixing deep mixing treatment method that has obtained the Architectural Technical Performance Certification from the Japan Architecture Comprehensive Testing Institute (GBRC Performance Certification No. 12-17 Revision 1). It achieves extremely stable mixing performance with minimal variation, unaffected by soil type, thanks to a patented, uniquely developed mixing and stirring device. Numerous performance verification tests conducted on sandy soil, clay, and loam have demonstrated a reliable high quality with a coefficient of variation of 25% or less, providing highly reliable construction based on technical guidelines. Additionally, due to the small markup factor for quality control, excessive material usage can be suppressed, and strict quality inspections can be conducted at minimal cost by adopting "Inspection Method A" as a principle.

This is a ground improvement method that involves mechanically mixing cement milk and the soil of the original ground to a specified depth, creating a strong columnar improvement body underground. Due to the large diameter of the improvement body, it is expected to provide excellent lateral friction, ensuring effective settlement prevention even in very soft underlying ground with an equivalent N value of around 4. It can be widely adapted to thick soft layers, reliably transmitting the building's load to stable ground and supporting it from below. During construction, a construction machine equipped with multiple measuring devices is used, offering high-quality construction accuracy based on reliable engineering evidence and high reliability through strict quality control.

This is a soil-cement column method (deep mixing method) that uses a stepped steel pipe as the core material, which has obtained the architectural technology performance certification (GBRC Performance Certification No. 06-12 Revision 4) from the Japan Architectural Comprehensive Testing Institute, a general incorporated foundation. It is a high-performance hybrid method that combines the stable material strength of steel pipe pile methods with the large friction force of column methods, compensating for the disadvantages of each method, such as the variability in the strength characteristics of the columns and the small friction force of small-diameter steel pipe piles, thereby ensuring reliable high load-bearing capacity. Due to the core material effect, it prevents stress concentration at the head and supports the load along the entire length, significantly improving resistance to bending and shear forces during earthquakes, and minimizing the impact even if localized solidification issues occur.

This is a reliable and secure method for reinforcing the ground with pile-like structures for single-family homes, which solidifies cement milk directly underground into pile shapes, demonstrating high quality and strength regardless of soil type. Using a drilling rod equipped with a conical excavation head, it advances to the support depth while laterally expanding the original ground and fills it with cement milk, creating high-quality pile-like columns. The greatest advantage is that the quality of the columns is not affected at all by the soil type, as the cement milk is not mixed with the local soil. By adopting a conical head, the risk of mixing excavated soil clumps is eliminated, and the construction principle that does not loosen the ground ensures stable and significant vertical bearing capacity.

This is a ground improvement method that can be selected when weak layers are distributed at shallow depths. It involves uniformly mixing and stirring powdered cement-based solidifying materials with the original ground soil using heavy machinery, and carefully compacting it to construct a strong "slab-like improved body." This method demonstrates extremely excellent engineering effects in preventing differential settlement, increasing ground bearing capacity, and preventing liquefaction, reliably supporting important structures from the ground up. The construction process is characterized by low noise, low vibration, and short construction time, minimizing the impact on the surrounding environment. Through clear construction procedures and engineering approaches, it achieves reliable ground bearing capacity reinforcement as required by designers and supervisors.

This method involves injecting grout (injection material) into the ground to lift and restore tilted or sunken buildings while simultaneously enhancing the ground's bearing capacity. The method consists of three "i (injection)" processes. First, repeated injections are made to form a "support plate" on the supporting layer. Next, injections are made beneath the foundation to create a "lift plate." Finally, "lift-up injection" is performed between the support plate and the lift plate to precisely raise the entire building. Utilizing laser measurement devices and computer-controlled three-dimensional tilt measurement systems, the tilt is continuously measured in real-time, allowing for precise leveling adjustments, making this a highly accurate, reliable, and safe construction technique.

This is a carbon fiber reinforcement system for existing concrete strip foundations that has obtained housing disaster prevention technology evaluation (evaluation number DPA-Housing Technology-23) from the Japan Architectural Disaster Prevention Association and has been registered as a utility model. By firmly adhering high-strength carbon fiber sheets to the foundation surface using matrix resin, it significantly improves shear strength, ductility, and seismic resistance. Unlike traditional underpinning methods that face many challenges in terms of weight, construction period, and cost, this system can reliably restore existing foundations with no reinforcement or deteriorated cracks to a robust supporting structure that far exceeds the original strength at the time of construction, without significantly changing the weight or cross-section of the structure.

This is a specialized document that clearly summarizes the overall plan for the jack-up construction of single-family homes to maintain the residents' living conditions. It covers advanced methods for correcting uneven settlement in wooden houses without the need for moving to temporary housing or relocating belongings, allowing for precise correction of building tilt down to the millimeter while residents remain in their homes. Utilizing a computer-controlled hydraulic jack system linked to high-precision laser measuring devices, the building is safely lifted to a horizontal line without imposing undue deformation stress on the structure. The plan includes meticulous project management that considers limited construction hours, reliable dust protection, and attention to vibration and noise, enabling the completion of work without disrupting daily activities such as remote work, house chores, and childcare. It dramatically alleviates health issues caused by floor tilt, such as dizziness, headaches, and insomnia, while simultaneously repairing issues like malfunctioning doors and windows and wall cracks. This comprehensive construction plan also includes measures to prevent re-settlement through the insertion of steel pipe piles beneath the foundation, minimizing the psychological and economic stress for the client.

Localized subsidence and cracking occurring in the fabric foundation of a residence are serious structural defects caused by localized weakening of the ground or uneven soil pressure due to neighboring embankments or excavations. If left unaddressed, the building's tilt will progress, leading to significant disruptions in daily life, such as wall cracks and malfunctioning window frames. In GeoTech's subsidence correction work, we employ a steel pipe pile driving method that uses hydraulic jacks to vertically press steel pipe piles into a hard support layer deep below the surface, utilizing the building's own weight as a reaction force. Piles are precisely placed at specific locations where localized subsidence has occurred, and the building is accurately jacked up to restore it to a level state. Additionally, cracks in the foundation are treated with epoxy resin injection or U-cut repairs, and ground fissures or voids beneath the floor are filled with high-density air milk, thoroughly reinforcing the overall stability of the structure and the strength of the foundation. The work can be carried out while residents remain in the building, with low vibration and low noise. This is the optimal method for resolving fabric foundation issues at low cost and in a short construction period, regardless of the building's age.

In residential land development, there are many cases where uneven ground, such as backfilling behind retaining walls and the intersection of cut and fill, leads to ground consolidation settlement and differential settlement due to lateral flow. When differential settlement places excessive stress on the foundation, it can cause cracks in the foundation and ground fissures beneath the floor, increasing the risk to the building structure. The settlement correction work provided by Geotech resolves this issue by utilizing the weight of the building as jack reaction force and employing a steel pipe pile driving method that directly presses high-strength steel pipe piles into stable supporting ground. The foundation on the settlement side is carefully lifted with hydraulic jacks and accurately corrected to a horizontal state. Additionally, high-resin repair materials are injected into the cracks of the foundation, and lightweight, self-hardening air milk is filled without gaps into the voids created underground by the settlement. Construction can be carried out while residents are living in the home, eliminating the need for relocation, and foundation reinforcement is achieved in a safe and secure environment with significantly reduced noise and vibration. We provide optimal construction plans tailored to the customer's needs.

The sinking and cracking of strip foundations caused by the aging of residential buildings and localized ground softening lead to issues that result in stress in daily life and a decrease in the asset value of the property. Large-scale demolition and reconstruction or house-moving work require high costs and temporary housing, but with Geotech's steel pipe pile driving method, it can be safely and reasonably corrected while living in your familiar home. This method utilizes the building's own weight as a reaction force to steadily drive steel pipe piles down to a stable support layer using a small hydraulic jack, accurately jacking up and correcting the sinking areas. Since it can be constructed with partial excavation, the construction period can be minimized, optimizing construction costs. Additionally, high-viscosity resin injection is applied to the cracks in the damaged strip foundation, and lightweight, durable air milk is filled and injected into the voids created by sinking under the floor and underground to restore ground bearing capacity. It generates minimal vibration and noise for neighbors and is the definitive method for correcting residential sinking with excellent cost performance. We will continue to support your important home with a reliable construction system.

This is a technical and management guide for house lifting construction plans specifically designed for construction companies and house manufacturers, aimed at maintaining the residents' quality of life. It comprehensively covers the process management guidelines for professionals to correct building tilt in the shortest time possible while residents continue to live in the property, without imposing the burden of moving or temporary housing on the owners when issues of differential settlement are discovered after handover. Based on ground investigation data, it accurately combines the use of existing columns, steel pipe jacking methods, and pressure slab methods to detail the process of returning the entire building to a level position without distortion. It includes a checklist of management considerations unique to occupied sites, such as attention to noise reduction, selection of low-noise and low-vibration equipment, and dust prevention measures. This practical document is essential for builders to restore trust and address warranty issues, covering everything from dialogue techniques to alleviate the psychological stress of owners, to various procedural steps for reattaching ground guarantees and insurance application processes.

Localized subsidence and cracking occurring in the foundation of residential buildings are significant structural issues caused by uneven ground subsidence and localized softening. If left unaddressed, the tilt of the building will further increase, leading to a substantial decrease in asset value and reduced seismic resistance. The subsidence correction work provided by Geotech utilizes the building's own weight as jack reaction force and employs a steel pipe pile pressing method, where high-strength steel pipe piles are driven deep into a hard support layer. Piles are precisely anchored at the locations of localized subsidence, and accurate leveling is restored through precise jacking. Additionally, epoxy resin injection is applied to the cracks in the foundation concrete to restore structural strength, and high-density filling of air bubble mortar is used to raise the ground bearing capacity in areas of subsidence and underground voids. Construction can be carried out while residents are living in the home, minimizing noise and vibration, and compressing the construction period and costs to a minimum. We will permanently protect the structural safety and asset value of your important home.

Local subsidence and cracks in the foundation caused by seismic shaking and consolidation changes in weak ground lead to significant tilting and a dramatic decrease in the seismic resistance of homes. The subsidence correction work carried out by Geotech resolves these issues using a steel pipe pile driving method, where steel pipe piles are driven into a hard support layer under the weight of the building, monitored in real-time to the millimeter with the latest laser measurement systems. Hydraulic jacks are linked to precisely lift the building without adding stress, correcting it to its original level at the time of construction. At the same time, high-adhesion epoxy resin is injected into the cracks of the damaged foundation to fully restore structural strength and waterproofing performance, while high-strength bubble mortar (air milk) is densely injected to fill the cracks and voids that have formed in the subfloor due to subsidence. The work can be done while residents are living in the home, with no need to move to temporary housing, and is completed in a short period with minimal noise and vibration. This simultaneously improves the building's seismic performance and ensures lasting structural stability.

This construction method is a groundbreaking settlement correction solution for single-family homes that have experienced partial sinking of the foundation or structural cracks. It scientifically identifies the causes based on SWS (Screw Weight Penetration) tests and precise building level measurements, followed by partial jacking and ground reinforcement. For localized tilting caused by weak ground or uneven consolidation of fill, we use small hydraulic jacks and high-precision laser measurement devices to safely and reliably restore the level to within millimeters. Cracked areas of the foundation are repaired with epoxy resin injection and U-cut seals, and, if necessary, we optimally combine steel pipe pile driving methods and pressure slab methods to fundamentally eliminate the risk of future settlement. Our method fully accommodates construction while residents are living in the home, without the need for moving or temporary housing, allowing work to proceed while maintaining the residents' daily routines. We significantly reduce the financial and mental burden on homeowners, ensuring structural integrity and enhancing long-term asset value, so you can rest assured.

This plan is a resident-friendly subsidence correction solution that precisely and safely repairs partial subsidence of the foundation and structural cracks while protecting the daily lives of residents. By conducting a pre-implementation SWS (Screw Weight Insertion) test and high-precision measurements of the floor levels inside and outside, we visualize the localized causes of subsidence and the unevenness of the ground. Based on the diagnostic results, we ensure dust prevention measures and safe pathways to prevent dust from entering the living space, and we carry out partial jacking using small hydraulic jacks. By lifting and correcting in millimeter increments while monitoring the building's minute movements in real-time with a 3D laser level measuring device, we can restore it to a level position without placing undue stress on walls or columns. For foundation cracks, we apply epoxy resin injection and, if necessary, use steel pipe pile driving and pressure plate reinforcement to prevent re-subsidence. We promise to achieve a worry-free construction process that incurs no temporary housing costs or moving expenses, minimizing the mental and financial stress for the client.

This proposal is a settlement correction method that effectively repairs partial subsidence and cracking issues in strip foundations without incurring excessive construction costs. By conducting a preliminary SWS (Screw Weight Insertion) test, we can pinpoint the specific soft layers or subsidence areas causing the settlement. By applying a "partial jack-up method" that selectively lifts and corrects only the necessary areas without jacking up the entire building, we minimize construction equipment and personnel, achieving significant cost reductions. Furthermore, for structural cracks in the foundation, we combine high-viscosity epoxy resin injection and carbon fiber sheet reinforcement to significantly enhance the durability and toughness of the foundation structure beyond the level of new construction. If necessary, we will implement deep pile driving or pressure slab methods to completely contain the risk of future settlement recurrence. This method is chosen by many contractors and clients as a rational option that balances smart cost management with reliable safety structures and the preservation of the building's asset value.

This construction method is a subsidence correction solution for single-family homes that have experienced partial sinking of the foundation or structural cracks. It scientifically investigates the causes based on SWS (Screw Weight Penetration) tests and high-precision level measurements, allowing for partial jacking up while maintaining the living infrastructure. By implementing flexible piping measures that do not disrupt lifelines such as city gas and water supply and drainage, we achieve complete construction while residents remain in their homes, without the need for temporary housing or relocation. For cracks in the foundation caused by uneven subsidence, we apply structural repairs such as epoxy resin injection, and during lifting, we use small hydraulic jacks and laser measuring devices to safely and precisely restore levelness to the millimeter. Furthermore, by combining the driving of steel pipe piles into the supporting ground and the installation of pressure-resistant slabs, we fundamentally eliminate the risk of future re-subsidence. We dramatically reduce the financial and mental burden on homeowners while ensuring the safety of their homes and enhancing property value, so you can trust us to handle it with confidence.

This plan is a solution for contractors and house manufacturers that covers everything from the scientific clarification of the causes of partial subsidence of the foundation and structural cracks that occur in homes after delivery, to precise corrections and warranty provisions. By conducting SWS (Screw Weight Insertion) tests and high-precision measurements of the building in advance, we visualize the factors of uneven subsidence in the ground and present a correction plan based on clear evidence. We adopt an approach of "repairing while living" that does not require temporary housing or moving, and we prevent secondary complaints through thorough site management with dust protection and low-noise construction. In the construction process, we use a small hydraulic jack in conjunction with a laser measurement device to accurately return the building to a level position without applying pressure to it, down to the millimeter. Along with repairing foundation cracks, we perform permanent ground reinforcement using steel pipe piles and pressure plates, providing a one-stop solution that includes reissuing ground warranties. We aim to transform the trust of clients who have been discouraged by troubles into a solid positive impression by providing "greater peace of mind than at the time of new construction."

This proposal is a settlement correction and structural reinforcement solution that effectively repairs partial settlement of the mat foundation and structural cracks without incurring excessive construction costs. By conducting a preliminary SWS (Screw Weight Insertion) test, we can pinpoint the specific soft layers or settlement areas causing the subsidence. By applying a "partial jack-up method" that selectively lifts and corrects only the necessary areas without jacking up the entire building, we minimize construction equipment and personnel, significantly reducing construction costs and time. Furthermore, for structural cracks in the foundation, we combine high-viscosity epoxy resin injection, carbon fiber sheet application, and additional foundation reinforcement to dramatically enhance the durability and toughness of the foundation structure beyond its original level. After jacking up, we will perform steel pipe pile insertion, pressure plate installation, and mortar filling to completely eliminate the risk of future subsidence recurrence. We provide a rational option that balances cost-effectiveness with reliable safety structures and the preservation of the building's asset value.

This construction method is a specialized solution that combines ground analysis based on the SWS (Screw Weight Penetration) test and partial jacking up for single-family homes where some settlement of the foundation and structural cracks have occurred. By conducting a preliminary survey, the causes of uneven settlement in the ground are identified as objective data, and small hydraulic jacks are placed in the settling foundation areas to perform precise horizontal corrections in millimeter increments. For structural cracks in the cloth foundation caused by settlement stress, high-viscosity epoxy resin injection and carbon fiber sheet reinforcement are applied, enhancing the strength of the concrete structure beyond that of a new build. Furthermore, by optimally combining the underpinning method of driving steel pipe piles into the supporting ground, we fundamentally eliminate the risks of future resettlement and uneven settlement during major earthquakes. This method allows for complete construction while residents remain in their homes, ensuring that the homeowner's daily rhythm and comfort are preserved while broadly restoring the overall structural safety of the house, so you can trust us with confidence.

In residential foundation reinforcement, it is essential to address issues such as foundation settlement and cracking early on to maintain the long-term safety and comfort of the building. Particularly in the case of strip foundations, certain settlements and structural cracks can potentially impact the building's seismic resistance and structural strength. Ignoring these problems can accelerate the deterioration of the building and increase the risk of major repairs in the future or during an earthquake. Our settlement correction work addresses these challenges with scientific investigation and precise repair techniques, restoring the safety of the building. 【Usage Scenarios】 - Detached houses with partial settlement or structural cracks in strip foundations - Cases requiring recovery of the building's seismic resistance and structural strength - Situations where there is a desire to reduce the risk of future settlement or differential settlement during a major earthquake - Cases where construction needs to proceed while residents are still living in the home 【Benefits of Implementation】 - Reliable recovery of the building's seismic performance and structural strength - Stabilization of the foundation through precise horizontal correction at the millimeter level - Improvement of concrete structural strength through carbon fiber reinforcement - Fundamental elimination of future settlement risks through steel pipe pile driving - Construction that respects the residents' daily routines while they continue to live in the home

This is a reliable sinking correction solution that fundamentally addresses the issue of building subsidence accompanied by foundation cracks. For structural cracks in the foundation caused by uneven ground or localized softening, high-viscosity epoxy resin is injected and filled under high pressure and density to restore the compromised structural strength and significantly improve waterproofing. At the same time, a pressure plate is precisely installed directly beneath the sunken foundation, and high-precision millimeter-level lift-up is performed using hydraulic jacks to restore the tilted building to a precise horizontal state. After the jacking is completed, air bubble mortar (air milk) is poured into the fine gaps that have formed between the foundation and the ground, filling and solidifying them without any gaps, significantly increasing the contact area to prevent future re-sinking or differential settlement. Since this solution accommodates construction while residents are living in the home without the need for large machinery, extensive demolition, or temporary relocation, it greatly reduces the burden on homeowners' daily lives and secondary costs such as temporary housing rent. With reliable construction techniques and uncompromising quality control, we dramatically restore the seismic resistance, durability, and asset value of homes, providing long-lasting peace of mind.