ジオテック List of Products and Services

In the collateral evaluation by financial institutions, understanding the potential soil contamination risks of the target real estate is crucial. Soil contamination not only affects the value of the land but may also involve future remediation costs and legal liability risks. To assess these risks in advance and make appropriate decisions, a soil contamination survey based on specialized knowledge is essential. Geotech, as a "designated survey organization" by the Ministry of the Environment, conducts soil contamination surveys necessary for collateral evaluation with optimal plans tailored to the client's objectives and land risks, providing accurate risk assessments. 【Usage Scenarios】 - Collateral value assessment of real estate for financing - Risk assessment in real estate investment - Soil contamination surveys in due diligence (DD) 【Benefits of Implementation】 - Visualization of soil contamination risks in collateral evaluation - Reduction of future remediation costs and legal liability risks - Support for more reliable lending decisions

• Site and ground investigation
• Environmental Survey
• Geological Survey

In real estate development, accurately understanding the potential risks of land is essential for the success of the project. In particular, soil contamination resulting from past land use can lead to unexpected cost increases and development delays. Therefore, appropriate risk assessment before starting development and detailed investigations as needed are crucial. GeoTech, as a "designated investigation agency" by the Ministry of the Environment, formulates optimal investigation plans tailored to the client's objectives and land risks, and conducts accurate risk assessments. 【Application Scenarios】 - Risk assessment before purchasing new development land - Investigations before the demolition and reconstruction of existing buildings - Confirmation of soil contamination in land transactions - Environmental impact assessments in development plans 【Benefits of Implementation】 - Reduction of soil contamination risks associated with development - Prevention of unexpected additional costs and delays in construction timelines - Support for smooth acquisition of permits and approvals - Increased certainty in business planning

• Site and ground investigation
• Environmental Survey
• Geological Survey

In the demolition industry, it is important to confirm the presence or absence of soil contamination associated with building demolition work. Particularly, depending on the historical land use, there may be unintentional soil contamination, and it is necessary to understand this risk in advance and respond appropriately. If soil contamination is identified, there is also a risk of delays in demolition work and additional costs. GeoTech, as a "designated investigation agency" by the Ministry of the Environment, provides reliable one-stop consulting from soil contamination risk assessment before demolition to proposals for remediation measures in case contamination is discovered, as well as construction and management. 【Usage Scenarios】 - Investigation of land use history before demolition work - Voluntary screening investigations - Detailed investigations based on legal regulations - Proposals, construction, and management of remediation measures in case soil contamination is identified 【Benefits of Implementation】 - Risk assessment during the planning stage of demolition work - Prevention of construction delays due to unexpected soil contamination - Cost management through appropriate measures - Assurance of legal compliance

• Site and ground investigation
• Environmental Survey
• Geological Survey

In the construction industry, land surveys require careful consideration of future building plans and their impact on the surrounding environment, as well as an accurate understanding of the presence and risks of soil contamination. In particular, detailed investigations based on past land use history and geological characteristics are essential to prevent unexpected additional costs and delays in construction schedules. If soil contamination is identified, failing to take appropriate measures may hinder the progress of the project. Geotech, as a "designated investigation agency" by the Ministry of the Environment, provides a one-stop solution from risk assessment of soil contamination in land surveys to proposals for remediation measures in the event contamination is confirmed, as well as construction and management. 【Usage Scenarios】 - Preliminary surveys before acquiring new construction sites - Site surveys after the demolition of existing buildings - Voluntary risk management 【Benefits of Implementation】 - Reduction of risks in land acquisition - Optimization of costs and schedules during the planning phase - Compliance with regulations and environmental conservation - Smooth project advancement

• Site and ground investigation
• Environmental Survey
• Geological Survey

In chemical plant sites and former sites, a wide variety of chemical substances are manufactured and used, making it essential to objectively understand the risk of soil contamination as a key to smooth business operations. Conducting early soil contamination investigations (historical surveys and soil condition surveys) during factory reconstruction, land sales, or ongoing operations directly relates to the proper assessment of future asset value and compliance with legal regulations. By identifying and quantifying contamination risks in advance from a neutral technical perspective, it is possible to prevent unexpected troubles and costs during transactions or construction, allowing for the formulation of rational budgets and business plans. Additionally, early detection during operations enables planned management and measures that minimize impacts on the surrounding area, providing significant benefits in maintaining and protecting the company's social credibility and a healthy operating environment over the long term.

• Site and ground investigation
• Environmental Survey
• Geological Survey

In transactions and redevelopment of former printing factories and binding shops, early detection of invisible soil contamination risks is essential. The harmful substances handled on-site vary greatly depending on the printing method and process, such as organic chlorine solvents widely used for offset blanket cleaning, hexavalent chromium as gravure cylinder plating solution, cyanide for undercoating, and lead derived from letterpress type. In particular, the drainage routes of organic chlorine solvents that were consumed and disposed of in large quantities during daily roller cleaning and plate development, as well as the risk of penetration into the floor, are the most critical points to focus on. The advantage of conducting early investigations lies in scientifically identifying these specific contamination risks, which can completely eliminate future risks of land value decline, construction delays, and legal setbacks considered illegal dumping, thereby enabling safe and rational land asset management and redevelopment planning.

• Site and ground investigation
• Environmental Survey
• Geological Survey

In the real estate appraisal standards, the presence or absence of soil contamination is clearly defined as an important individual factor in residential, commercial, and industrial areas, and it is one of the price formation factors that determine the utility and economic value of real estate. To make proper price assessments and judgments on the highest and best use, it is essential to clearly understand and analyze this risk from the perspective of market participants. Therefore, conducting a historical investigation (Phase 1) at an early stage before purchasing or transferring land is extremely beneficial in preventing unexpected declines in asset value and avoiding troubles during land transactions. Even if the land currently appears to have no issues, researching the history of past factories or similar establishments through residential maps or registries can help control the risks associated with the transfer in advance.

• Site and ground investigation
• Environmental Survey
• Geological Survey

In an operating factory, conducting an early soil contamination survey and quickly understanding the risks is extremely important to prevent potentially fatal losses in management and operations. By conducting the survey while the factory is in operation, appropriate measures can be swiftly implemented to prevent the spread of contamination to surrounding areas, even if contamination is discovered. Additionally, the greatest benefit is the increased likelihood of being able to "carry out soil contamination measures while continuing operations." Not only can one gain peace of mind by confirming the presence or absence of contamination early on, but it also allows for budgeting and planning for soil contamination remediation costs in preparation for future rebuilding or land sales. By anticipating risks from past land use through a historical survey (Phase 1) and confirming the presence of contamination and estimating appropriate costs through a soil condition survey (Phase 2), it is possible to avoid sudden declines in asset value and troubles during land transactions, thereby protecting long-term asset value and social credibility.

• Site and ground investigation
• Environmental Survey
• Geological Survey

Are you having trouble disposing of the excess soil generated from construction work (such as construction-generated soil and root excavation soil)? Geotech provides reliable soil analysis that complies with the standards and regulations of receiving sites. As a designated investigation agency under the Soil Contamination Countermeasures Act, we propose optimal sampling and analysis methods tailored to the regulations of the receiving sites. With accurate analysis, we help avoid troubles, ensure a smooth handover of safe land, and support the smooth progress of construction with appropriate cost estimation.

• Site and ground investigation
• Environmental Survey
• Geological Survey

At gas stations, harmful substances related to oils and fats, such as benzene, which is a component of gasoline, boron derived from engine oil and coolant, and lead resulting from past use of leaded gasoline, have been handled. These substances pose a risk of leakage from fuel dispensers and underground tanks, making them important items in soil contamination investigations. In our survey, we thoroughly investigate the operational history and actual usage on the site to accurately assess the invisible underground risks.

• Site and ground investigation
• Environmental Survey
• Geological Survey

In the printing and binding industry, there is a possibility that chemical substances such as solvents have been used in past business activities, leading to concerns about soil contamination. Particularly when considering the sale or purchase of land or the establishment of new business locations, it is important to understand the presence or absence of soil contamination in advance to reduce future risks. Historical investigations involve researching how the land being considered for purchase was used in the past through old maps and registries, thereby evaluating the potential for soil contamination. 【Usage Scenarios】 - Risk assessment before land purchase - Investigation of former factory sites or old business locations - Compliance with environmental regulations - Confirmation of soil contamination during business succession 【Benefits of Implementation】 - Early detection of soil contamination risks and planning of countermeasures - Avoidance of unnecessary troubles and costs - Smooth facilitation of land transactions - Assurance of business continuity

• Site and ground investigation
• Environmental Survey
• Geological Survey

In the electronic components manufacturing industry, there may be concerns about the emission of fluorocarbons during the manufacturing process and the risk of soil contamination due to past land use. These contaminations become significant issues in responding to environmental regulations and future land use planning. Conducting appropriate soil contamination investigations and understanding the risks is essential for compliance and business continuity. GeoTech's soil investigation services provide tailored investigation plans and risk assessments based on customer needs, and in the event that contamination is discovered, we offer consistent consulting up to remediation measures as a designated investigation agency. 【Usage Scenarios】 - Soil contamination risk assessment for factory sites and planned new construction sites - Regular soil monitoring for compliance with environmental regulations - Investigation of land with a history of fluorocarbon use 【Benefits of Implementation】 - Early detection of environmental risks and implementation of appropriate measures - Ensuring business continuity through compliance with legal regulations - Contributing to the maintenance and enhancement of land asset value

• Site and ground investigation
• Environmental Survey
• Geological Survey

In the printing industry, there are many opportunities to use chemical substances such as solvents in business activities, raising concerns about the risk of soil contamination. In the event that soil contamination occurs, there will be impacts on business continuity and a need for environmental consideration. GeoTech's soil contamination surveys are planned according to customer requests and survey objectives, ranging from historical investigations to detailed surveys, and appropriate risk assessments are conducted. As a designated survey organization, we provide consistent consulting services, including assistance with remediation measures if soil contamination is identified. 【Usage Scenarios】 - Historical investigations within factory premises - Regular checks of environmental risks - Understanding soil conditions during relocation or sale - Confirming the absence of impacts on neighboring areas 【Benefits of Implementation】 - Early detection of potential soil contamination risks - Compliance with laws and regulations and response to environmental conservation - Support for the development of business continuity plans (BCP) - Maintaining trust from the local community

• Site and ground investigation
• Environmental Survey
• Geological Survey

In the metal refining industry, managing the risks of soil contamination due to heavy metals associated with business activities is of great importance. It is particularly necessary to accurately assess whether there is any impact on the soil in operational areas and based on historical records, and to implement appropriate measures. Early confirmation of the presence or absence of soil contamination and reducing future environmental risks are essential for the sustainability of companies and coexistence with local communities. Geotech's soil contamination surveys respond to the needs of the metal refining industry by providing accurate risk assessments and consulting. 【Usage Scenarios】 - Understanding the heavy metal contamination status within business premises - Preliminary surveys for new business site locations - Contamination risk assessments based on past operational history - Investigations for compliance with environmental regulations 【Benefits of Implementation】 - Early detection and reduction of soil contamination risks - Support for planning appropriate remediation measures - Strengthening environmental compliance - Maintenance and enhancement of corporate value

• Site and ground investigation
• Environmental Survey
• Geological Survey

In the chemical industry, risk assessment of soil contamination associated with operations is crucial. It is necessary to understand the impact of past business activities and the surrounding environment, and to manage future environmental risks appropriately. Accurately assessing the presence and extent of soil contamination is essential not only for legal compliance but also for building trust with the local community. Geotech's soil investigation services provide appropriate risk assessments based on specialized knowledge to support the continuity of your business. 【Usage Scenarios】 - Risk assessment of soil contamination within factory premises - Environmental impact assessment before the construction of new business sites - Verification of soil contamination based on past operational history - Regular soil investigations for legal compliance 【Benefits of Implementation】 - Early detection of potential soil contamination risks - Support for the development of appropriate risk management plans - Strengthening of environmental compliance - Contribution to the formulation of business continuity plans (BCP)

• Site and ground investigation
• Environmental Survey
• Geological Survey

The Automatic Ram Sounding test has a high correlation with the N value and allows for high-precision investigations as a complementary survey to standard penetration tests and SWS tests. The Automatic Ram Sounding test is one of the dynamic cone penetration tests, with a relatively simple investigation method and a penetration capacity of around N value 50, enabling continuous data collection (Nd values) every 200 mm. Additionally, a high correlation has been observed between Nd values and the N values from standard penetration tests.

• Geological Survey Company
• Geological Survey
• Site and ground investigation

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

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

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.

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

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.

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

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.

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

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.

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

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.

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

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.

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

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.

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

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.

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

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.

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

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.

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

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.

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

Survey Details Building Level Measurement (Perimeter) SWS Test (Screw Weight Penetration Test) (4-7 Points)

• Renovation and repair methods
• Residential foundations
• Consulting companies

The steel pipe pile driving method is a technique that uses jacks to press steel pipe piles into the supporting ground, allowing the building's load to be supported and adjusted.

• Renovation and repair methods
• Residential foundations
• Consulting companies

The tilting and sinking of buildings occur due to insufficient ground support caused by topographical and human factors, and there has been a tendency for this to increase in recent years. i-LIFT method (i-LIFT construction method) patent application: 2003-430063

• Renovation and repair methods
• Residential foundations
• Consulting companies

The decision on the method for settlement correction and its implementation will be made based on a site survey, taking into consideration the following points: - Site conditions (slope situation, condition of existing structures, foundation and exterior conditions, ground data, buried objects, etc.) - Whether the settlement is ongoing or has stabilized. - Whether to carry out a full correction under the foundation (for the purpose of preventing re-settlement) or a partial correction.

• Renovation and repair methods
• Residential foundations
• Pile and foundation work

This is a service where specialized engineers in foundation ground support the design. We comply with legal regulations, various standards, guidelines, and other specialized requirements.

• Ground foundation construction method
• Ground improvement
• Consulting companies

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.

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

At Geotech, we plan investigations tailored to your needs, ranging from historical and simple soil surveys to detailed investigations, and provide appropriate risk assessments. In the unlikely event that soil contamination is discovered, we offer assistance with remediation measures, providing consistent consulting as a designated investigation agency. For more details, please contact us.

• Site and ground investigation
• Environmental Survey
• Geological Survey

There is an increasing number of cases where historical investigations are conducted to dispel concerns about soil contamination during land transactions. A historical investigation is a service that examines how the land being considered for purchase was used in the past, using old maps and land registries, in order to assess the potential for soil contamination.

• Site and ground investigation
• Environmental Survey
• Geological Survey

"Settlement correction work" introduces the flow from the occurrence of differential settlement to the correction work. A commonly used method is the steel pipe pile driving method, which supports the building's load by driving steel pipe piles into the supporting ground using jacks, thereby supporting and correcting the entire structure. [Contents] ■ Building level measurement (current situation assessment) ■ Flow from the occurrence of differential settlement to correction work ■ Steel pipe pile driving method ■ Overview of each method *For more details, please refer to the PDF document or feel free to contact us.

• Renovation and repair methods
• Residential foundations
• Consulting companies

At golf courses, proper drainage management is essential for maintaining the quality of the course. In particular, the permeability of the soil and the presence of contaminants greatly affect drainage performance. Inadequate drainage can lead to poor water runoff, unhealthy grass growth, and even soil contamination. Geotech's soil investigation services provide optimal plans tailored to the conditions of the golf course, ranging from historical surveys to detailed soil investigations. 【Usage Scenarios】 - Around drainage channels at golf courses - Soil in greens and fairways - Areas where water quality contamination is a concern 【Benefits of Implementation】 - Acquisition of soil information for appropriate drainage measures - Early detection and countermeasures for soil contamination risks - Maintenance and improvement of course quality

• Site and ground investigation
• Environmental Survey
• Geological Survey

In the real estate industry, the safety of land is crucial for maintaining and enhancing the asset value of properties. The risk of soil contamination can lead to reduced sale prices and the incurrence of remediation costs. GeoTech's soil investigation services offer optimal plans tailored to customer needs, ranging from historical land surveys to detailed soil investigations. Even if soil contamination is detected, we provide consistent support all the way through to remediation measures. 【Usage Scenarios】 - Risk assessment during real estate transactions - Consideration of effective land utilization - Investigation of land requiring soil contamination measures 【Benefits of Implementation】 - Visualization of soil contamination risks - Smooth negotiations in real estate transactions - Maintenance and enhancement of asset value

• Site and ground investigation
• Environmental Survey
• Geological Survey

In the construction industry, accurate evaluation of the ground is essential to ensure the safety of buildings. Properly understanding the properties of the ground is important to prevent risks such as differential settlement and liquefaction, thereby achieving safe structures. GeoTech's soil investigation services provide optimal investigation plans tailored to customer needs, from historical surveys to detailed soil investigations, reducing risks in construction projects. [Usage Scenarios] - Ground investigation for new residential construction - Ground investigation for large-scale construction projects - Ground investigation and reinforcement work considerations for existing buildings [Benefits of Implementation] - Ensures the safety of buildings - Reduces risks in construction projects - Compliance with legal regulations - Support for remediation measures in case of soil contamination

• Site and ground investigation
• Environmental Survey
• Geological Survey

"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.

• Renovation and repair methods
• Residential foundations
• Consulting companies

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.*

• Renovation and repair methods
• Residential foundations
• Consulting companies

"Settlement correction work" introduces the flow from the occurrence of differential settlement to the correction work. A commonly used method is the steel pipe pile driving method, which supports the building's load by driving steel pipe piles into the foundation using jacks, thereby supporting and correcting the entire structure. [Contents] ■ Building level measurement (current status assessment) ■ Flow from the occurrence of differential settlement to correction work ■ Steel pipe pile driving method ■ Overview of each method *For more details, please refer to the PDF document or feel free to contact us.

• Renovation and repair methods
• Residential foundations
• Consulting companies

Liquefaction surveys (liquefaction assessments) are investigations that determine the potential for liquefaction during an earthquake based on ground and water level conditions. By understanding whether the site is prone to liquefaction and implementing appropriate liquefaction countermeasures, damage can be minimized. GeoTech Co., Ltd. offers four levels of methods, ranging from preliminary assessments based on documentation to detailed assessments involving boring surveys. 【Features of GeoTech】 ○ Experienced analysis staff (3 certified geological survey technicians) ○ Many employees hold qualifications as residential ground technicians and chief technicians from the NPO Housing Ground Quality Association ○ Ground consulting before and after the survey ○ Achievements in ground surveys and ground reinforcement work in the metropolitan area are compiled in the Ground Information Provision System (GEODAS), improving diagnostic accuracy through database creation and comparison with neighboring data ○ Courteous service to clients For more details, please contact us or download the catalog.

• Site and ground investigation
• Geological Survey Company
• Geological Survey

The ground investigation method commonly referred to simply as boring investigation is formally known as the boring and standard penetration test. This investigation utilizes holes drilled by boring (i.e., hollowing out) to conduct standard penetration tests that measure the hardness of the ground at intervals of one meter. Typically, this is carried out simultaneously with soil sampling. The data obtained from the standard penetration test is referred to as the N value, which can serve as a guideline for estimating ground stability. 【Features】 ○ The most commonly conducted ground investigation during design and construction in construction projects. ○ Clarifies the composition of strata by excavating the investigation site and observing the soil. ○ Measures the N value to understand the relative hardness and compactness of the soil in situ. ○ Can penetrate any deep or hard layer. For more details, please contact us or download the catalog.

• Site and ground investigation
• Geological Survey Company
• Geological Survey