Ground reinforcement work | A reliable geo-column method that balances environmental consideration and high support capacity.
Adopting inorganic solidification materials to prevent soil contamination and the leaching of harmful substances! The geo-column method achieves a high level of both environmental consideration and reliable allowable bearing capacity.
In architectural planning, ensuring the seismic resistance and safety of buildings requires reliable ground reinforcement work that takes into account the surrounding environment. The Geo-Column method is a trusted deep ground improvement technology that constructs strong soil-cement columnar improvements underground by injecting a slurry made from inorganic cement solidifying agents and water into soft ground, and mechanically mixing and stirring it with specialized equipment. By using environmentally friendly materials that eliminate the risk of harmful substances such as hexavalent chromium leaching, we can safely enhance the ground strength without causing secondary contamination of soil or groundwater. This method primarily targets soft layers from GL-2m to GL-8m, and by ensuring that the tip of the column penetrates and anchors into good ground with a cohesive soil N value exceeding 3 and a sandy soil N value exceeding 4, we can prevent uneven settlement accidents caused by the weight of the building and uneven loads. With high-precision automatic monitoring through construction management devices and a comprehensive management system by Geotech Co., Ltd., we provide construction that combines environmental conservation with advanced structural safety. We strongly support the creation of safe and secure job sites in a comprehensive manner.
basic information
The environmental design specifications for the Geo-Column method (deep ground mixing treatment method) are a standard column diameter of φ600mm, with a corresponding depth of approximately GL-2.0m to GL-8.0m. The penetration conditions for the supporting layer require a settlement of at least 50cm into good ground with a converted N value exceeding 3 for cohesive soil and exceeding 4 for granular soil. The binding material used is a non-toxic, environmentally friendly inorganic cement binder, with a standard addition amount of at least 300kg/m3 for cohesive soil and at least 250kg/m3 for granular soil. The construction machinery is equipped with an automatic measurement device (such as GEO-MONITOR) as standard, which automatically records excavation depth, discharge volume, pressure, and rotation speed to ensure environmental and construction quality.
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Ground reinforcement work
Applications/Examples of results
It is ideal for reinforcing the foundations of wooden, steel frame, and reinforced concrete (RC) houses and apartments, as well as medical and welfare facilities, which emphasize environmental conservation and efforts towards the SDGs (up to 3 stories, up to 13 meters in height, and a total floor area of 1,500 m² or less). It is placed directly under strip foundations or slab foundations to prevent uneven settlement of the ground and improve load-bearing capacity. It is widely used in construction sites where there is a high risk of soil contamination, such as areas with high groundwater levels or sites close to gardens and natural environments, aiming to minimize such risks. It is chosen as the standard construction method by clients and design offices seeking safe and clean foundation structures.
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