Ground reinforcement work | Constructing high-quality piles even in humus soil using the Pure Pile method.
Ground reinforcement work
We propose the Pure Pile method, which prevents poor solidification with a 100% cement milk structure that does not mix with local soil, demonstrating stable high strength even in humus ground.
To ensure the structural safety of buildings over a long period, it is important to accurately analyze the characteristics of the local ground and to carry out appropriate ground reinforcement work to prevent uneven settlement. The Pure Pile method proposed by Geotech Co., Ltd. is an advanced ground reinforcement technology that directly replaces the ground with high-strength cement milk while expanding the ground laterally using a conical excavation head. Because it uses a 100% cement milk structure without mixing with local soil, there is no occurrence of poor solidification or variations in strength due to mud contamination, even in special grounds such as humus soil. By evenly distributing a large number of small-diameter reinforcement bodies with a design pile diameter of 20 cm, the building load is supported and dispersed, achieving high vertical bearing capacity to prevent uneven settlement accidents. The straight rod structure, which does not produce excavated soil, also minimizes the amount of residual soil generated. At Geotech, under an ISO-certified quality management system, certified construction engineers thoroughly manage real-time data to ensure that high-quality construction with safety and reliability is delivered to clients.
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basic information
The design pile diameter is a uniform specification of 20 cm, with a maximum installation depth of 10 m from the ground surface. The applicable ground types are sandy soil, clayey soil, and humus soil. The applicable targets are single-family homes and ground slabs with up to three stories, a height of 13 m or less, a eave height of 9 m or less, and a total floor area of 1,500 square meters or less. This construction method has obtained the Building Technical Performance Certification from the General Incorporated Foundation Japan Building Disaster Prevention Association (GBRC Performance Certification No. 11-28). Since the pile body is constructed solely with cement milk, there is no strength reduction due to soil quality, and the use of straight rods helps to reduce the amount of construction waste generated.
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Applications/Examples of results
It is ideal for preventing foundation ground subsidence in new construction and renovation projects such as single-family homes, apartments, and small-scale stores. It demonstrates exceptional effectiveness in foundation reinforcement work on organic-rich humus soils and soft ground where cement solidification reactions are easily hindered. Additionally, it is widely used in sites where there is a desire to reduce disposal costs for generated excavated soil, as well as in measures to suppress subsidence of floor slabs in factories and warehouses. This ground reinforcement solution is essential for small-scale construction sites that require reliable pile strength unaffected by soil conditions.
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