It is suitable for detailed velocity structure analysis of the ground.
"Elastic Wave Tomography" is a exploration method that utilizes the surface, boreholes, and horizontal tunnels by setting up vibration points and receiving points around the target exploration area. When vibrations are generated at the vibration points, seismic waves are observed at many receiving points, and the initial arrival times are recorded. Using the observed initial arrival times, the velocity structure of the ground is analyzed. Compared to surface refraction seismic exploration, it is expected to improve the accuracy of velocity distribution analysis within the target ground. [Features] ■ Directly elucidates the physical properties of the underground ■ Visualizes invisible information using X-ray CT in the medical field *For more details, please download the PDF or feel free to contact us.
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【Application Examples】 ■Effect confirmation surveys for ground improvement, etc. ■Understanding the three-dimensional distribution of support layers ■Understanding the physical properties of support layers and upper and lower layers ■Understanding the physical properties of problematic ground ■Investigation of the looseness impact zone associated with excavation *For more details, please download the PDF or feel free to contact us.
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For more details, please download the PDF or feel free to contact us.
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Our company has been engaged primarily in geological structure surveys and ground property investigations through elastic wave exploration, electrical exploration, and logging using boreholes, with the motto of "safe, swift, and careful observation and measurement" and "high-precision and rapid analysis using advanced systems." Additionally, we conduct investigations such as buried pipe surveys using ground-penetrating radar, depth surveys for guardrail posts, dynamic seismic performance assessments of wooden houses using the Waseda method, simultaneous measurement of microtremors inside boreholes and at the surface, as well as investigations to understand the amplification characteristics of earthquakes (transfer functions) through standalone measurements at the surface. Please feel free to contact us if you have any requests.