We provide all the ground information you need! We investigate the geological layers of the ground using a boring machine.
"Boring surveys" are the most fundamental method of geological investigation. By using a boring machine to excavate and observe the collected samples, the composition of the strata can be understood. Generally, a standard penetration test is conducted during excavation to measure the N value (an indicator of the relative density and hardness of the ground). Our company plans and proposes sampling during boring, as well as various tests and investigations utilizing the borehole, as needed, providing all the ground information required by our customers. 【Features】 ■ Understanding of strata composition ■ Investigation of ground strata composition using a boring machine ■ Provision of all ground information required by customers *For more details, please refer to the PDF document or feel free to contact us.
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【Flow of Borehole Investigation】 ■ Understanding Customer Requirements (Proactive) ■ Preliminary Document Research (Proactive) ■ Preliminary Site Investigation (Proactive) ■ Presentation of "Investigation Plan" and "Estimate" ■ Implementation of Investigation ■ Submission of "Results" ■ Aftercare (Reactive) *For more details, please refer to the PDF document or feel free to contact us.
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【Purpose】 ■Geological Survey *For more details, please refer to the PDF document or feel free to contact us.
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Company information
Koa Development was established in 1953 (Showa 28), and thanks to your support, we have surpassed our 60th anniversary, for which we are sincerely grateful. Our company started as a geological survey firm and now primarily focuses on consulting services related to ground and groundwater, as well as soil environment consulting and purification and restoration projects to maintain a rich global environment. In our country, natural disasters caused by earthquakes, heavy rains, and typhoons, such as the Great East Japan Earthquake and the Hiroshima heavy rain disaster, are frequent. This is exacerbated by Japan's unique vulnerable ground and steep terrain, which amplify the scale of disasters. In such a natural environment, the role our company plays as a group of ground experts (Geo-Doctors) is becoming increasingly important. We aim to further refine the ground and soil environment-related technologies that form the foundation for the development of social infrastructure and the construction of a sustainable society, providing optimal solutions and contributing to society so that everyone can live safely and securely. We will continue to prioritize our customers and strive for further development of our business, so we kindly ask for your guidance and encouragement.