In-situ measurement of elastic wave velocity, essential for dynamic analysis of ground! Can be conducted for all types of ground.
"Elastic Wave Velocity Logging (PS Logging)" measures the depth-wise velocity distribution of elastic waves (P-waves and S-waves) propagating within the ground using boreholes. There are two types of elastic waves propagating through the ground: P-waves (longitudinal waves), where the direction of vibration aligns with the direction of propagation, and S-waves (transverse waves), where the direction of vibration is perpendicular to the direction of propagation. This test can be conducted on all types of ground, from soft soil to bedrock. [Information Obtained] ■ Elastic Wave Velocity: P-wave Velocity (Vp) and S-wave Velocity (Vs) ■ Moist Density: Density Logging, Soil Testing, and Others (Estimation) ■ Dynamic Elastic Coefficients: Poisson's Ratio (νd), Young's Modulus (Ed), and Shear Modulus (Gd) ⇒ Use of Results: Modeling of ground for seismic design and earthquake response analysis *For more details, please refer to the PDF document or feel free to contact us.
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【Measurement Method】 ■ Downhole Method - Not suitable for cases where there are thick pavements or existing structures due to the need to install a vibration point on the surface. ■ In-hole Vibration Source and Receiver Method - Applicable to a wide range of sites as it does not require a surface vibration point. - Not suitable for soil layers above the groundwater level as it requires water in the hole. *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Since our establishment, our company has adhered to the corporate philosophy of "providing accurate and high-quality ground information," offering consistent technology from ground to foundation to building for our customers. In addition, with a broad perspective on the future of society, we are committed to the refinement and development of technology, the sustainable provision of high-quality information, and the training of engineers who support these efforts, contributing to the reduction of our customers' risks and the improvement of their outcomes. Please feel free to contact us if you have any requests.