Ground reinforcement work | Achieving cost reduction with zero leftover soil and low-noise construction using the Σ-i method.

Achieving zero construction waste and low noise/low vibration construction! The Σ-i method thoroughly reduces environmental impact while simultaneously preventing neighborhood troubles and reducing construction costs.

In construction projects in urban areas and densely populated residential areas, there is a strong demand for safety to prevent ground subsidence accidents, as well as meticulous consideration for the surrounding environment. If weak ground with insufficient strength is left unattended, differential settlement can occur, leading to tilting and cracking damage of structures. The "Σ-i Method" (Sigma-i Method) provided by Geotech is a soil-displacement-free small-diameter steel pipe reinforcement technology that does not use solidifying materials such as cement and is installed solely through rotary insertion. Since no construction-generated soil (excess soil) is produced during excavation, it dramatically reduces the costs of soil disposal and the effort required for on-site processing, contributing to significant cost reductions and shortened construction periods. Additionally, it is compatible with small installation machines that allow for low-noise and low-vibration construction, enabling safe work even in narrow sites or where there is limited space between neighboring buildings. It has obtained GBR certification from the Japan Building Disaster Prevention Association, achieving a high level of environmental conservation and advanced structural support capability. Through strict management of construction data in-house, we provide transparent and safe ground reinforcement work.

Ground improvementPile and foundation workGround foundation construction method