ジオテック List of Products and Services

In the energy equipment industry, a solid and stable foundation is required to ensure the stable operation and long-term safety of equipment. Particularly for heavy equipment or equipment that generates vibrations during operation, ground subsidence and differential settlement increase the risk of damage, functional decline, and even accidents. Therefore, reliable ground reinforcement is essential. Our RES-P method has obtained building technology performance certification and contributes to the stabilization of equipment foundations on weak ground. 【Application Scenarios】 - Foundations for facilities such as power plants and substations - Foundations for plant equipment - Foundations for wind power generation equipment 【Benefits of Implementation】 - Stable operation of equipment by preventing building subsidence - Increased support capacity through the combined effects of the ground and pipes - Reduced maintenance costs due to long-term durability

In the telecommunications industry, especially in the installation of base stations, long-term stable operation and compatibility with the ground conditions of the installation site are required. Base stations need a robust support foundation that can withstand heavy objects such as radio towers and communication equipment, as well as natural environments like wind, rain, and earthquakes. Ground subsidence and tilting pose direct risks of communication failures and equipment malfunctions. Our RES-P method is a ground reinforcement technique that has obtained architectural technology performance certification, and it prevents building subsidence even on soft ground through the combined effects of pipes and the ground, contributing to the stable installation of base stations. 【Usage Scenarios】 - New installation of base stations - Improvement of seismic resistance of communication infrastructure - Installation of communication equipment on soft ground 【Benefits of Implementation】 - Long-term stable operation of base stations - Reduction of communication failure risks - Flexible response to ground conditions at installation sites

In the residential construction industry, a solid foundation is required to ensure the safety and long-term durability of buildings. Particularly, improving earthquake resistance against natural disasters such as earthquakes is crucial for protecting the safety of residents. Insufficient ground can lead to settlement, tilting, and even structural damage to buildings. Our Tiger Pile Method has obtained a construction technology performance certification and demonstrates reliable high bearing capacity through a soil-cement column method using stepped steel pipes as core materials. 【Usage Scenarios】 - Ground improvement for new residential buildings - Homes requiring enhanced earthquake resistance - Construction of homes on weak ground 【Benefits of Implementation】 - Improved resistance to bending and shear forces during earthquakes - Stabilization of buildings due to increased ground bearing capacity - Reduction of differential settlement risks

In the construction of commercial facilities, ground reinforcement with reliable load-bearing capacity is required to ensure the long-term stability and safety of the building. Particularly in commercial facilities where diverse uses and users are anticipated, ground subsidence and differential settlement can lead to significant issues affecting the functionality of the facility and the safety of its users. Therefore, selecting a highly reliable ground reinforcement method suited to the characteristics of the ground is crucial. The Tiger Pile method is a soil-cement column method that uses a stepped steel pipe as the core material and has obtained architectural technical performance certification from the Japan Architectural Institute Foundation. By combining the material strength of steel pipe pile methods with the frictional force of column methods, this hybrid method compensates for the shortcomings of each method and demonstrates reliable high load-bearing capacity. The core material effect also enhances resistance to bending and shear forces during earthquakes, addressing ground unevenness. [Application Scenarios] - New construction of large-scale commercial facilities - Construction of stores and tenant buildings - Load support for parking lots and plazas - Weak ground and ground with liquefaction risk [Benefits of Implementation] - Improved stability of buildings due to high load-bearing capacity - Enhanced safety during earthquakes - Reduced impact from ground variability - Long-term maintenance cost reduction

In factory construction, a strong and stable foundation is required for the stable operation of large equipment and precision machinery. In particular, vibrations during operation and the placement of heavy objects can impose significant loads on the foundation, potentially causing settlement and differential settlement. These issues can have serious consequences, such as reduced equipment accuracy, malfunctions, and production line stoppages. The Tiger Pile Method by Geotech Co., Ltd. is a soil-cement column method that uses a stepped steel pipe as the core material and has obtained certification for construction technology performance. By combining the material strength of steel pipe pile methods with the large frictional force of column methods, this hybrid method overcomes the challenges of ground variability and small-diameter steel pipe piles, ensuring reliable high load-bearing capacity. The core material effect also enhances resistance during earthquakes, reducing the impact of some poorly solidified areas. 【Application Scenarios】 - Ground improvement for large machinery installation sites - Prevention of settlement in precision equipment installation areas - Ground reinforcement due to production line expansions - Ground strengthening in areas requiring vibration mitigation 【Benefits of Implementation】 - Stable operation and longevity of equipment - Maintenance and improvement of production accuracy - Reduction of risks from unexpected ground settlement - Assurance of a safe operating environment

In infrastructure development, long-term stability and durability are required. In particular, the effects of ground subsidence and earthquakes pose significant challenges to the maintenance of infrastructure functionality. To address these challenges, reliable bearing capacity and high seismic resistance are essential. Our Tiger Pile Method has obtained certification for construction technology performance and provides solutions to meet these demands. 【Application Scenarios】 - Foundation reinforcement for roads, bridges, tunnels, etc. - Ground stabilization around structures such as dams and levees - Improvement of bearing capacity for critical infrastructure like airports and port facilities 【Effects of Implementation】 - Enhanced long-term stability of structures - Reduced impact on structures during earthquakes - Lower lifecycle costs for infrastructure facilities

In the construction of public facilities, long-term stability and durability are required. In particular, the effects of ground subsidence and earthquakes are important issues for the longevity of the facilities. If these challenges cannot be addressed, it may hinder the safety and functionality of the facilities, leading to an increased frequency of renovations or rebuilds. The Tiger Pile Method by Geotech Co., Ltd. has obtained architectural technology performance certification and contributes to the longevity of public facilities. 【Usage Scenarios】 - New construction and renovation of public facilities requiring stable support over the long term - Construction of facilities in earthquake-prone areas - When there is a desire to reduce the risk of ground subsidence 【Benefits of Implementation】 - Ensuring long-term stability of the facilities - Reducing the impact on structures during earthquakes - Contributing to the reduction of maintenance costs

In warehouse construction, a strong foundation is required to safely store large quantities of goods. In particular, the burden on the ground due to the load can be significant, and ground subsidence or differential settlement can affect the safety and functionality of the building. Reliable ground reinforcement that provides adequate bearing capacity is essential for the long-term stable operation of warehouses. The Tiger Pile method by Geotech Co., Ltd. is a soil-cement column method using stepped steel pipes as core materials, which has obtained architectural technology performance certification from the Japan Architectural Institute. By combining the stable material strength of steel pipe pile methods with the high frictional force of column methods, this hybrid approach compensates for the shortcomings of each method and ensures reliable high bearing capacity. The core material effect also enhances resistance to bending and shear forces during earthquakes, minimizing the impact even in cases of poor ground solidification. [Application Scenarios] - Reinforcement of foundation ground in warehouse construction - Reduction of ground subsidence risk due to load - Mitigation of structural impact during earthquakes [Effects of Implementation] - Realization of long-term stable operation of warehouses - Improvement of building safety - Reduction of maintenance costs

In the residential construction industry, a solid foundation is required to ensure the long-term safety and durability of buildings. In particular, improving earthquake resistance against natural disasters such as earthquakes is crucial for protecting the safety of residents. Insufficient ground strength and differential settlement can increase the risk of damage to buildings and the safety of residents. GeoTech's Pure Pile Method is a pile foundation reinforcement technique for single-family homes that provides stable high strength unaffected by soil conditions, addressing these challenges. 【Usage Scenarios】 - Ground reinforcement for new single-family homes - Construction on weak ground or land with liquefaction risk - Ground improvement aimed at enhancing earthquake resistance 【Benefits of Implementation】 - Ensuring long-term stability of buildings - Reducing building sway and damage during earthquakes - Preventing building issues caused by ground conditions

In the expansion and renovation of commercial facilities, a strong foundation that can support new loads while minimizing the impact on existing structures is required. Particularly in situations where the characteristics of the ground are difficult to predict or where consideration for the surrounding environment is necessary, reliable ground reinforcement is essential. Inadequate ground reinforcement can lead to building settlement or structural issues. The Pure Pile method by Geotech Co., Ltd. is a pile-type ground reinforcement method that demonstrates high quality and strength regardless of soil type, contributing to solving ground challenges in the expansion and renovation of commercial facilities. 【Usage Scenarios】 - Expansion and renovation of commercial facilities - Ground reinforcement near existing buildings - New construction or expansion in areas with unclear ground conditions 【Benefits of Implementation】 - Stable support for ground loads associated with expansion and renovation - Construction that minimizes impact on the surrounding environment - Assurance of long-term building safety

In factories and warehouses, a strong and stable foundation is required to install and operate heavy equipment. In particular, ground subsidence caused by the vibration and weight of equipment can increase the risk of operational shutdowns and equipment damage. Therefore, regardless of the type of ground, it is important to ensure reliable bearing capacity through ground reinforcement. The Pure Pile method is a technique that solidifies cement milk into pile shapes underground, demonstrating high quality and strength without being affected by soil conditions, making it suitable for ground reinforcement that can support the weight of factory and warehouse equipment. 【Application Scenarios】 - Ground reinforcement in areas for heavy machinery installation - Ground reinforcement in areas for high-rise rack installation within warehouses - Ground strengthening in anticipation of future equipment expansion 【Benefits of Implementation】 - Increased productivity due to stable operation of equipment - Reduced risk of ground subsidence - Protection of long-term equipment investments

In public facilities (schools and hospitals), the long-term stability of buildings is essential to ensure the safety of users. In particular, the condition of the ground is directly linked to the safety of the building, making reliable ground reinforcement indispensable. Inadequate ground reinforcement can lead to settlement or tilting of the building, potentially jeopardizing user safety. The Pure Pile method by Geotech Co., Ltd. provides stable high strength unaffected by soil conditions, contributing to the safety of public facilities. 【Application Scenarios】 - Ground reinforcement during the construction or expansion of schools and hospitals - Construction in areas where ground weakness or liquefaction risks are a concern - Public buildings requiring long-term safety 【Benefits of Implementation】 - Ensuring long-term stability of buildings - Reducing the risk of ground settlement and tilting - Contributing to the safety of users

In real estate development, the long-term safety of buildings and the maintenance of asset value are required. In particular, the stability of the ground is a crucial factor directly related to the durability of the building and the safety of its occupants. The quality of the ground can affect the performance of the building, and appropriate ground reinforcement is essential for enhancing asset value. Our Pure Pile method achieves high-quality, high-strength pile-type ground reinforcement unaffected by soil conditions, providing a reliable and secure construction foundation. 【Usage Scenarios】 - Ground improvement for new development sites - Ground strengthening associated with the expansion or renovation of existing buildings - When construction methods that minimize impact on the surrounding environment are necessary 【Benefits of Implementation】 - Ensuring long-term stability of buildings - Maintaining and enhancing asset value - Reducing ground risks

In the construction industry, ensuring the long-term stability of buildings requires a strong foundation and ground. Particularly in areas with weak soil or high groundwater levels, the risk of building settlement or tilting increases, which can affect the safety of structures. Therefore, appropriate foundation reinforcement to enhance the ground's bearing capacity and reliably support the building is essential. The small-diameter steel pipe pile method by Geotech Co., Ltd. addresses these challenges and provides solutions for robust building support. 【Usage Scenarios】 - Buildings on weak ground - Sites with high groundwater levels - Urban areas requiring consideration for neighboring properties - From single-family homes to general buildings 【Benefits of Implementation】 - Prevention of building settlement - Improved stability of structures - Contribution to shortened construction periods - Reduced impact on the surrounding environment

In the real estate sector, the long-term safety of buildings and the maintenance of asset value are required. In particular, the condition of the ground is directly linked to the sinking or tilting of buildings and can significantly impact asset value. Inadequate ground measures carry the risk of future repair costs and decreased valuation at the time of sale. GeoTech Co., Ltd.'s small-diameter steel pipe pile method aims to firmly support buildings by ensuring that the steel pipe piles reach a reliable bearing layer, with the primary goal of preventing sinking. This enhances the stability of buildings and contributes to the maintenance and improvement of asset value. 【Application Scenarios】 - Ground reinforcement for newly built single-family homes - Sinking measures for existing buildings - Construction projects on soft ground 【Effects of Implementation】 - Reduction of risks related to building sinking and tilting - Assurance of long-term building safety - Contribution to the maintenance and enhancement of asset value

In manufacturing factories, a strong and stable foundation is required to ensure the stable operation of production equipment and the long-term safety of buildings. In particular, vibrations caused by the installation and operation of large machinery, as well as fluctuations in groundwater levels, pose risks of ground subsidence and building tilt, which can lead to production line stoppages and damage to equipment. Our small-diameter steel pipe pile method addresses these challenges by ensuring that steel pipe piles reach a reliable support layer, thereby firmly supporting the building and facilitating stable factory operations. 【Application Scenarios】 - Ground improvement during new factory construction - Ground reinforcement during the expansion or renovation of existing factories - Prevention of subsidence in areas where large machinery is installed - Stabilization in sites with significant fluctuations in groundwater levels 【Benefits of Implementation】 - Increased productivity through stable operation of production equipment - Reduced risk of building subsidence and tilt - Assurance of long-term building safety - Construction with minimized impact on neighboring areas

In commercial facilities, a solid foundation is required to ensure the safety of stores and to allow customers to use them with peace of mind. In particular, building settlement can directly lead to dysfunction of the store and a decrease in customer satisfaction. Our small-diameter steel pipe pile method is a support pile method that is less affected by soil conditions and groundwater levels, providing stable quality to support buildings. This ensures the long-term safety of commercial facilities and contributes to the stability of store operations. 【Usage Scenarios】 - Ground improvement during new store construction - Ground reinforcement associated with renovations of existing stores - Settlement countermeasures for the entire commercial facility 【Benefits of Implementation】 - Improved store safety by reducing the risk of building settlement - Maintenance and enhancement of customer satisfaction - Stabilization of long-term store operations

In the housing industry, a strong and stable foundation is required to maintain the long-term safety and comfort of buildings. Particularly in areas with weak soil or high groundwater levels, buildings are prone to sinking or tilting, which can affect livability and property value. Therefore, reliable ground reinforcement that firmly supports the building and prevents sinking is essential. The small-diameter steel pipe pile method by Geotech Co., Ltd. effectively addresses the issue of preventing house sinking in residential buildings by ensuring that the steel pipe piles reach a solid support layer, thereby providing strong support for the structure. 【Usage Scenarios】 - New single-family homes on weak soil - Construction on land with high groundwater levels - Sinking countermeasures for existing homes 【Benefits of Implementation】 - Suppression of building sinking and tilting - Improvement of long-term building safety - Maintenance of comfort in living spaces

In public works, there is a demand for strengthening disaster response capabilities. In particular, securing a solid and stable foundation is essential to protect infrastructure and the safety of local residents from natural disasters such as earthquakes and flooding. The vulnerability of the ground increases the risk of structural collapse and flooding damage, which can require significant time and cost for recovery. Our small-diameter steel pipe pile method is less affected by soil conditions and water levels, and can be constructed with low vibration and low noise, contributing to infrastructure development for disaster preparedness and enhancing local disaster resilience. 【Application Scenarios】 - Development of disaster-resistant infrastructure (roads, bridges, levees, etc.) - Ground reinforcement for evacuation facilities and public buildings - Liquefaction countermeasures - Stabilization of structural foundations on weak ground 【Benefits of Implementation】 - Reduction of damage and early recovery during disasters - Extension of infrastructure lifespan - Ensuring the safety of local residents - Shortening construction periods while minimizing impact on the surrounding environment

The uneven settlement of residential buildings and the tilting of floors due to aging can cause persistent stress to the vestibular system and autonomic nervous system of the residents, leading to unexplained symptoms such as dizziness, headaches, and nausea. The settlement correction work provided by Geotech Co., Ltd. is an advanced technology that fundamentally resolves these unpleasant symptoms and restores a healthy living environment in homes. Before construction, laser measuring devices and leveling instruments are used to visualize the tilt of the building's exterior and interior in millimeter detail, and optimal repair designs are planned based on objective technical data. During the actual correction work, low-noise and low-vibration multi-stage hydraulic jacks are used to accurately lift the tilted foundation structure to a horizontal state, utilizing the weight of the building and ground reaction forces. This process does not require any relocation to temporary housing, allowing the construction to be completed while maintaining essential living infrastructure such as water and gas, thus avoiding unnecessary secondary costs and mental burdens. After construction, resin injection into foundation cracks and air milk filling into ground voids are carried out to ensure permanent stabilization and prevention of re-settlement.

Claims regarding defects in residential properties and issues such as differential settlement and floor tilt that arise during inspections not only lower the value of the building but also cause residents to experience autonomic nervous system disorders such as dizziness and tinnitus. GeoTech Co., Ltd. provides settlement analysis based on objective evidence and high-precision settlement correction solutions. In preliminary investigations, we conduct screw weight penetration (SWS) tests and laser measurements around the building's perimeter to quantify soil properties, ground resistance values, and deformation angles, scientifically clarifying the factors contributing to settlement. During the restoration process, we utilize a low-noise, low-vibration hydraulic jack system to perform precise leveling corrections in millimeter increments without putting stress on the building's structure, all under continuous digital monitoring. This allows construction to proceed while residents remain in the property, thoroughly eliminating secondary costs such as temporary housing expenses and moving. After the corrections, we ensure load-bearing capacity through the installation of steel pipe piles and pressure plates, and by injecting air milk and resin into foundation cracks, we achieve lasting structural safety and enhancement of asset value.

In uneven ground where narrow plots are close to property boundaries and mixed with embankments and excavations, localized subsidence can cause houses to tilt, leading to unexplained dizziness, headaches, and autonomic nervous system disorders for the residents. GeoTech's subsidence correction method is an advanced technology that protects both the building and the health of its occupants from the ground up, even in harsh construction environments. During site surveys, the distribution depth of soft layers and the deformation angles of foundations are accurately analyzed through screw weight penetration (SWS) tests and peripheral level measurements. In actual repairs, we utilize a steel pipe pile driving method (underpinning) using small hydraulic jacks and the i-LIFT method, which injects non-dispersive cement-based grout. Even in narrow sites where large machinery cannot enter, we perform millimeter-level horizontal corrections without relocating to temporary housing, while continuing to use essential utilities such as water and gas. After correction, high-density bubble mortar (air milk) is injected into the ground voids, and for foundation cracks, resin injection and carbon fiber sheet application are carried out, providing strong footing stabilization along with high seismic resistance and extended lifespan.

This catalog explains a sinking correction method that addresses the often-overlooked floor tilt during renovations, fundamentally improving residents' dizziness and health issues. Subtle floor inclinations caused by uneven ground subsidence can chronically stress the semicircular canals, leading to autonomic nervous system disturbances and headaches. Our company objectively clarifies the causes of subsidence through precise level measurements around the building and Swedish sounding (SWS) surveys. During construction, we carefully lift the building while monitoring its displacement in millimeter increments in real-time, using small hydraulic jacks. By employing low-noise equipment that minimizes operational sounds and vibrations, we can restore the level state within a short period without requiring residents to leave their familiar homes or move to temporary accommodations. Furthermore, by combining steel pipe pile driving into deep supporting layers and filling voids under the foundation, we thoroughly prevent future subsidence. We propose technology that enhances the structural safety of homes and realizes a safe and healthy living environment.

The debris and buried garbage hidden in the gaps of ground investigation data can cause irregularities in the ground, leading to significant localized subsidence where only parts of a building settle after construction or over time. Even if no abnormalities are detected in the preliminary investigation data, localized softening can result in dangerous distortions or structural cracks in the foundation and exterior walls. At Geotech, we conduct pinpoint underground exploration and situation identification through hand auger drilling to accurately clarify the causes of subsidence and the extent of abnormalities. In the repair process, we apply a pressure plate jack-up method using compact thick steel plates, allowing for precise millimeter-level horizontal lift-ups with small hydraulic jacks, even in confined spaces, using the building's weight as a counterforce. Furthermore, we fill any voids or cracks that occur after lifting with highly fluid air bubble mortar (air milk) and combine this with high-viscosity epoxy resin injection into the uneven foundation structure, achieving improved foundation strength and preventing re-subsidence. With Geotech's extensive subsidence correction construction menu, we provide structural repairs that ensure peace of mind while living in the building.

Underground debris and buried waste that cannot be captured at representative points during ground surveys can cause irregular localized subsidence over time, significantly impacting the structural safety of buildings, regardless of whether they are new or old. When underground obstacles hidden between standard SWS tests are the cause, rapid subsidence or structural cracks occur in specific areas rather than the entire building tilting, necessitating an investigation based on scientific data rather than intuitive repairs. Geotech visualizes the location and extent of obstacles through hand auger drilling and pinpoint underground exploration, and conducts numerical analysis of distortions in the exterior and interior using high-precision laser level measurements down to the millimeter. For subsidence correction, we employ a jack-up method with pressure plates that can be implemented in narrow spaces, synchronously driving small hydraulic jacks using the building's own weight as a reaction force, allowing for precise leveling without burdening the structure. Additionally, we combine high-density filling of air bubble mortar (air milk) into underground voids with high-adhesion epoxy resin injection into foundation cracks to prevent re-subsidence and establish the overall seismic and structural safety of the building. Geotech's comprehensive subsidence correction service menu supports a safe living environment.

Underground debris and buried waste that cannot be fully anticipated during ground surveys can cause irregular localized subsidence, where only part of a building sinks. Implementing comprehensive piling or large-scale ground improvement can incur significant construction costs, so a rational corrective method that precisely identifies and addresses the buried areas causing the subsidence is extremely effective. Geotech locally identifies the subsidence areas caused by buried waste through hand auger drilling and pinpoint subsurface exploration, thoroughly cutting unnecessary preliminary survey costs and overall construction expenses. For horizontal adjustment, we apply a pressure plate jack-up method using compact thick steel plates. Even in narrow sites where the transport of temporary machinery is difficult, we perform precise lifting in millimeter increments using small hydraulic jacks, leveraging the building's own weight as a reaction force, dramatically reducing construction time and costs. After lifting, we flow air-entrained mortar (air milk) into the voids under the floor and use high-viscosity epoxy resin injection for any cracks in the foundation. Geotech's subsidence correction construction menu provides reliable and low-cost restoration of the foundation.

Buried waste such as rubble and construction debris lurking in the gaps of ground investigation data can cause irregular ground softening due to aging and uneven load distribution, leading to significant localized subsidence where only parts of a building sink. Since representative point data from tests like SWS cannot capture this, sudden structural cracks or dangerous deformations may occur at specific locations of the shallow foundation. At Geotech, we conduct hand auger drilling and pinpoint subsurface exploration to accurately visualize the location and extent of buried waste as objective numerical data. In the repair process, we apply a space-saving jack-up method using pressure plates, synchronously driving small hydraulic jacks with the building's own weight as a reaction force, and performing precise horizontal adjustments in millimeter increments under constant high-precision laser monitoring. After the lift-up is completed, we inject high-flow air-entrained mortar (air milk) into the voids created under the floor to equalize the ground pressure over the area, while also pressurizing and sealing high-adhesion epoxy resin into the damaged shallow foundation structure to restore its integrity and structural strength beyond that of when it was newly built. Through Geotech's advanced subsidence correction construction menu, we establish lasting structural safety at the foundation level.

Underground debris and buried waste that cannot be detected at standard representative points in ground surveys can cause irregular localized subsidence over time, becoming a significant factor for price reductions in the sale of used homes and inspection evaluations. Uneven subsidence caused by hidden underground obstacles leads to sudden sinking in specific areas or foundation cracks rather than tilting of the entire building, making it essential to investigate the causes based on objective data rather than relying on intuition. Geotech clearly visualizes the presence of foreign material layers through hand auger probing and pinpoint underground exploration, and conducts numerical analysis of distortions in the exterior and interior using high-precision laser level measurements down to the millimeter. For subsidence correction, we adopt a jack-up method with pressure plates that can be implemented even on narrow sites, accurately returning the structure to a level state by linking small hydraulic jacks to the building's self-weight without putting a burden on the structural body. Furthermore, we combine high-density filling of air bubble mortar (air milk) into underground voids with the injection of high-adhesion epoxy resin into foundation cracks to prevent re-subsidence and establish the seismic and structural safety of the entire building. Geotech's subsidence correction construction menu ensures a balance of reliable quality and asset value protection.

Unforeseen underground debris and buried waste that cannot be anticipated during ground surveys can cause irregular localized subsidence, where only part of the building sinks. Implementing comprehensive piling or large-scale ground improvement can incur significant construction costs, so a rational correction method that precisely identifies and addresses the buried areas causing the subsidence is extremely effective. GeoTech locally identifies the subsidence areas caused by buried waste through hand auger drilling and pinpoint underground exploration, thoroughly cutting unnecessary preliminary survey costs and overall construction expenses. For horizontal adjustment, we apply a jack-up method using compact thick steel plates. Even in narrow sites where the transport of temporary machinery is difficult, we achieve precise lifting in millimeter increments using small hydraulic jacks, leveraging the building's weight as a reaction force, dramatically reducing construction time and costs. After lifting, we flow air-entrained mortar (air milk) into the voids under the floor, and for cracks in the foundation, we also use high-viscosity epoxy resin injection. GeoTech's subsidence correction construction menu provides reliable restoration at a low cost.

Buried waste such as debris and construction waste hidden in the gaps of ground survey data poses a significant risk factor for unexpected localized subsidence after the handover of a house or in the early stages of a new construction. Since these issues cannot be fully captured by representative points in preliminary surveys, cases often arise where rapid inclinations or structural cracks occur in parts of the mat foundation, leading to disputes with homeowners. At Geotech, we conduct hand auger drilling and pinpoint subsurface exploration to accurately visualize the extent of buried waste and the causes of subsidence as objective numerical data. In the repair process, we apply a space-saving jack-up method for pressure plates, synchronously driving small hydraulic jacks using the building's own weight as a reaction force, and performing precise horizontal adjustments in millimeter increments under constant high-precision laser monitoring. After the lift-up is completed, we inject high-flow air bubble mortar into the voids created under the floor to equalize the ground pressure across the surface, while also pressurizing and sealing high-adhesion epoxy resin into the damaged mat foundation structure to restore its structural strength. Geotech's subsidence correction construction menu strongly supports builders in their after-sales service.