ジオラフター List of Products and Services

[New Oil Pollution Control Technology for a Decarbonized Society] ■ Following the Japanese government's "2050 Carbon Neutral (CN2050)" initiative in 2020, there has been a transformation in corporate awareness towards a decarbonized society. ■ The social implementation of a unique and highly effective "Negative Emission (NE) technology" that stores "biochar" in the ground and agricultural land, strongly promoting CN2050, has begun. ■ Since the postponement of establishing soil oil pollution concentration standards in the past, Japan's development of oil pollution purification technology has been in decline, peaking 20 years ago. ■ The "Activated Carbon Bioremediation Technology," which is also an NE technology, progresses with bioremediation after the sensory values of oil pollution are cleared early on. As a result, the challenge of determining the endpoint of purification, which was difficult with bioremediation, has been overcome, transforming it into a technology with excellent reliability for site management. ■ In Japan, there is a similar activated carbon purification technology known as the "Smart Cap" method, which has been proven to be applicable to oil pollution control as VOC purification technology. *For more details, please contact us or view the PDF download.

• Environmental Survey
• Soil improvement material

The "liquid injection method" can be applied to shallow foundations. It is relatively inexpensive and can be constructed in a short period of time. The PDF document below provides easy-to-understand explanations of terms related to settlement correction work, as well as various methods, so please take a look. *For more details, please refer to the PDF document or feel free to contact us.

• Ground foundation construction method

In the "Void Injection Filling Method," if there are depressions or voids around the building, cement is injected to fill them. First, a PVC pipe is installed for injection. Then, a cement slurry is prepared and injected into the void areas. There are advantages such as "possible construction in a short period" and "minimal noise and vibration." 【Process Flow】 (1) Install PVC pipes for injecting cement slurry (2) Prepare the cement slurry for injection (3) Inject the cement slurry into the void areas *For more details, please refer to the PDF document or feel free to contact us.

• Ground foundation construction method

The "Pressure-resistant slab method" is a construction technique used when the surface layer is relatively hard, the weak layer is shallow, and the supporting layer is relatively shallow. Excavate 40 to 50 cm from the bottom of the foundation and install the pressure-resistant slab. Support the foundation with a jack to correct any tilt. 【Process Flow】 (1) Foundation excavation and pressure-resistant slab installation - Excavate 40 to 50 cm from the bottom of the foundation - Install the pressure-resistant slab (2) Pressure confirmation - Confirm pressure using a gauge-equipped jack (3) Jack installation - Support with the actual jack *For more details, please refer to the PDF document or feel free to contact us.

• Ground foundation construction method

The "underpinning method" is commonly used in settlement repair work, where the load of the building is supported by steel pipe piles driven into the foundation using jacks, allowing for the entire building to be corrected. It prevents re-settlement and allows for construction to be carried out while residents remain in the building, without the need to move out. There is minimal noise, vibration, and dust generation, and the space required for equipment storage is also minimized. 【Features】 ■ The load of the building is supported by steel pipe piles driven into the foundation using jacks, correcting the entire building. ■ Construction can be carried out while residents remain in the building, without the need to move out. ■ Minimal noise, vibration, and dust generation. ■ Space-efficient equipment storage. *For more details, please refer to the PDF materials or feel free to contact us.

• Ground foundation construction method

"Ground subsidence" refers to the phenomenon where the ground is compressed and sinks. Widespread ground subsidence primarily occurs due to excessive pumping of groundwater for industrial use, agricultural use, snow melting, air conditioning, and the extraction of natural gas, among other reasons. Localized subsidence occurs in cases related to civil engineering works or when loads exceed the bearing capacity of the ground. *For more details, please refer to the PDF materials or feel free to contact us.*

• Ground foundation construction method

"Subsidence correction work" refers to the construction process that involves applying steel pipes or chemical injections to buildings that have tilted due to ground subsidence, in order to bring the buildings closer to a level position. The PDF document below provides clear explanations from terminology to various methods, so please take a look. *For more details, please refer to the PDF document or feel free to contact us.*

• Ground foundation construction method

Settlement correction work refers to the construction process that involves applying steel pipes or chemical injections to buildings that have tilted due to ground subsidence, in order to bring them closer to a level position. This document provides detailed information on "settlement correction work" for buildings that have tilted due to ground subsidence, as well as the "chemical injection method" applicable to slab foundations. 【Contents】 ■ Settlement Correction Work - What is settlement correction work? - What is ground subsidence? ■ Correction Methods - Steel pipe pile driving method (underpinning method) - Pressure-resistant slab method - Void injection filling method - Chemical injection method *For more details, please refer to the PDF document or feel free to contact us.

• Ground improvement
• Ground foundation construction method
• Renovation and repair methods

Are you aware that the flow of soil contamination investigations can change depending on the purpose? First, I recommend organizing the circumstances that led to the investigation. This document provides specific examples of circumstances, such as "the case of the closure of a specific facility" and "modifications of land over 3,000 square meters," along with the items that need to be confirmed. Please feel free to download and review it. [Contents] ■ Flow of implementation for soil contamination investigation by purpose ■ Case of closure of a specific facility ■ Modification of land over 3,000 square meters ■ Modification of land with factories, etc., over 900 square meters ■ Purpose of land sale ■ Disposal of construction-generated soil (excess soil) *For more details, please refer to the PDF document or feel free to contact us.

• Geological Survey

The handbook "Is it okay to leave 'soil contamination risks' as they are?" introduces "soil contamination risks" such as leaks from cracked drainage pipes and raw wastewater, and the spread of contamination to downstream areas. It explains not only the triggers for discovering soil contamination but also why soil contamination surveys are necessary, and it includes the benefits of requesting our services. [Contents] ■ What is soil contamination? ■ Have you experienced this? Triggers for discovering "soil contamination" ■ About "soil contamination risks" ■ About soil contamination surveys ■ Benefits of requesting GeoRafter Inc. ■ Contact information *For more details, please refer to the PDF document or feel free to contact us.

• Environmental Survey
• Geological Survey

The "Pressure Resistance Slab Method" is a technique that involves laying a pressure-resistant steel plate under the foundation and using jacks to support the foundation and correct any tilting. This method is used when the surface layer is relatively hard, the weak layer is shallow, and the supporting layer is relatively shallow. Construction can be carried out while residents remain in the building, without the need to relocate. Additionally, it generates little noise, vibration, or dust, and requires minimal space for equipment storage. 【Features】 - Can be used in conjunction with the steel pipe pile driving method - Construction can be done while residents remain in the building - Generates little noise, vibration, or dust - Requires minimal space for equipment storage *For more details, please refer to the catalog or feel free to contact us.

• Ground foundation construction method

The "Underpinning Method" is a technique that supports the load of a building by driving steel pipe piles into the supporting ground using jacks, thereby stabilizing and correcting the entire structure. This method not only corrects the sinking of the building but also prevents further sinking. Additionally, construction can be carried out while residents remain in the building, without the need to relocate. 【Features】 ■ Prevention of further sinking ■ Construction possible while residents remain in the building ■ Minimal noise, vibration, and dust generation ■ Space-saving for material storage *For more details, please refer to the catalog or feel free to contact us.

• Ground improvement

The "SmartCap Method" is a groundbreaking technique that utilizes the concentration effect of easily adsorbing activated carbon, injecting and stirring α materials (iron powder, oxidants, bio materials, etc.) with special activated carbon to purify contaminated sites. [Patent No. 6750865: Method for addressing soil contamination] It targets Class 1 specified harmful substances. The chemical reaction between the agents and harmful substances promotes the decomposition of harmful substances! [Features] ■ Purification can be achieved in a relatively short period ■ No need for off-site disposal of contaminated soil ■ Capable of addressing deep contamination *For more details, please refer to the catalog or feel free to contact us.

• Other earthworks, foundation works, and exterior floors
• Special Construction Method

GeoRafter Co., Ltd.'s subsidence correction work is a "civil engineering technique" that utilizes the weight of the building to drive steel pipes with jacks under houses that have experienced differential settlement, thereby returning the building to a level position. Using the weight of the building as a reaction force, steel pipe piles are driven into the supporting ground using jacks, supporting and correcting the entire structure through the "steel pipe pile driving method (underpinning method)." Additionally, the most suitable method is selected from options such as "pressure slab method" and "liquid (cement milk) injection method" for construction. 【Features (Underpinning Method)】 ■ Not only corrects building subsidence but also prevents re-subsidence ■ Allows construction in a residential state without the need for relocation, such as moving ■ Generates minimal noise, vibration, and dust, and requires less space for equipment storage *For more details, please refer to the catalog or feel free to contact us.

• Site and ground investigation

Our company is a "designated investigation agency based on the Soil Contamination Countermeasures Act of the Ministry of the Environment." Currently, there are about 698 designated investigation agencies nationwide, but we are one of the few companies that consistently handle everything from soil contamination surveys to soil contamination countermeasure construction. The cost of countermeasure construction is said to be between ¥50,000 and ¥100,000 per cubic meter of contaminated soil, and to further reduce these costs, we propose "forward-looking investigations" that leverage our strength in conducting countermeasures! You can entrust us with everything from voluntary investigations for land transactions to investigations in accordance with various regulations and legal investigations. ■ We own our own drilling machines for contamination surveys (a total of 13), ranking among the top in the industry! ■ From consulting to on-site surveys to countermeasure construction, we provide a one-stop service with our own staff! ■ Of course, we serve all of Japan! *For more details, please refer to the PDF materials or feel free to contact us.

• Environmental Survey
• Geological Survey
• Geological Survey Company