地質計測 List of Products and Services

The "Rockfall Stability Automatic Diagnosis System" is a diagnostic system that can quickly assess the stability of rockfalls using their vibration characteristics. The vibration characteristics of rockfalls can be obtained by comparing rockfall vibrations with ground vibrations (vibrations of the foundation). The vibrations of the rockfall and the foundation are measured using high-sensitivity accelerometers, supporting traditional qualitative rockfall surveys. 【Features】 ■ Capable of measuring up to four rockfall locations simultaneously against one foundation location ■ Gypsum is used for the installation of accelerometers ■ A handy measuring device (approximately 10 kg) enables speedy surveys ■ The built-in computer in the measuring device allows for on-site evaluation of rockfall stability ■ The necessary vibration sources can be adequately provided by miscellaneous vibrations from vehicles traveling on nearby roads, etc. *For more details, please download the PDF or contact us.

• Environmental Survey

We offer "resistivity tomography," which involves arranging electrodes to surround the target exploration area using the surface and boreholes for measurements. By conducting multiple measurements, it is possible to assess the effectiveness of ground improvement based on changes in resistivity and to estimate the locations of permeable cracks using tracers. 【Features】 ■ Improved analysis accuracy is expected compared to high-density resistivity electrical surveys conducted on the surface. *For more details, please download the PDF or contact us.

• Geological Survey

Our company proposes a method called "refraction tomography," which applies tomographic techniques such as CT scans in medical fields to conventional elastic wave exploration. Through special iterative processing, we determine the two-dimensional velocity distribution of the ground. Additionally, since the calculation accuracy is proportional to the amount of data, it is necessary to take measurement points densely. 【Application Fields】 ■ Site investigation: Classification of rocks and soil due to excavation difficulty ■ Slope disaster prevention and cut slope investigation: Estimation of the gradient of stable areas ■ Landslide investigation: Understanding the depth of moving soil masses ■ Shotcrete slope investigation: Assessing the weathering condition behind deteriorated shotcrete ■ Tunnel, dam, and natural rock mountain investigation: Rock classification based on velocity values *For more details, please download the PDF or contact us.

• Geological Survey