We are ready to be a best advisor for you in geotechnical engineering!

GRI provides reliable and accurate ground investigation for project design, plan, and construction, including:
・General ground investigation and material test
・Rotary dynamic penetration test
・Acoustic wave tomography
・GPS survey
We are aimed to make ground investigation much effective from the soft ground to rock. In the past decades, we have developed several new ground survey techniques and done some contribution to the geotechnical engineering.