Ground reinforcement work | Piles that tackle humus soil and ultra-soft ground with sealing effects and high load-bearing capacity.
A small-diameter steel pipe pile method that eliminates concerns about poor solidification even in humus soil and high-water-content clay. The tip closure effect penetrates soft layers and eradicates long-term consolidation settlement.
This proposal is a small-diameter steel pipe pile ground reinforcement solution that fundamentally addresses the settlement issues in difficult ground conditions where humus layers and highly water-saturated ultra-soft clay are deposited. In weak ground such as peatlands and old riverbeds, there is a high risk of poor solidification due to the inhibition of chemical reactions of cement-based solidifying agents, and conventional surface and columnar improvements cannot adequately prevent future consolidation settlement or building tilt. The small-diameter steel pipe pile method features a special enlarged tip that firmly anchors into a strong support layer through rotational penetration, demonstrating tremendous end bearing capacity due to the complete closure effect of the soil inside the pipe. As a method based on steel materials that does not use chemicals, it is not affected by soil conditions and reliably penetrates thick soft layers to provide stable support for buildings. Its application range covers residential buildings up to three stories and retaining walls, allowing for high-precision bearing capacity calculations based on SWS tests and boring data. GeoTech conducts digital recording of all installation data through torque monitoring, ensuring the delivery of the highest quality foundation installation without defects, even in difficult ground conditions.
basic information
This construction method is a rotary penetration pile method consisting of high-strength carbon steel pipes with an outer diameter of φ89.1mm to φ216.3mm and special flared wings. The applicable range includes buildings up to 3 stories, up to 13 meters in height, and with a total floor area of up to 1,500 square meters, as well as retaining walls up to 3.5 meters in height. The maximum construction depth is 130 times the pile diameter (up to a maximum of 19.2 meters, etc.), suitable for organic soil, clay, and sandy soil. It has obtained public performance certification, and based on the converted N values from SWS tests and clear calculation formulas derived from boring data, reliable end bearing capacity can be designed even in extremely soft ground.
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Ground reinforcement work
Applications/Examples of results
Peat soil (humus soil) is ideal for foundation reinforcement of newly built single-family homes, apartments, stores, etc., in areas where it is distributed, such as former rice paddies, waterlogged land, old riverbeds, and wetlands, which are extremely soft ground. It demonstrates its effectiveness in sites where variations in strength and quality issues due to the inhibition of cement solidification must be absolutely avoided. Additionally, it is introduced in challenging land construction projects where there is a strict requirement for objective evidence of reaching a supportive layer to keep future consolidation settlement and differential settlement risks at zero for an extended period, as well as in cases of ground warranty insurance underwriting.
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