Seismic Testing - Monitoring and Testing Information

Articles & Whitepapers

Determination of the damping ratio by multi-channel spectral analysis of seismic downhole data

Soil dynamic parameters such as the damping ratio are of major interest in earthquake engineering. We’ve currently published a publication which comes back to a relationship between attenuation and velocity dispersion of body waves which replaces the measurement of the amplitude characteristics of seismic signals by a frequency dependent velocity function. The implementation of this method ...

Liquefaction Risk Mitigation using Jet Grouting and Earthquake Drains - Case Study

Project Description Boldwing Continuum Architects Inc. has contracted Itasca Consulting Group to perform a liquefaction analysis and evaluate several soil improvement designs for the Langdale Ferry ...

Hebei Lijian Lizhu: Good products without borders will provide better service

On September 7, 2019, the 11th China International Real Estate Investment Fair (hereinafter referred to as China Land Fair) was held in Hall A6 of Hall A of Xiamen Convention and Exhibition Center. The rich investment projects and sufficient ...

Showcase

Impulse Generator

The Impulse Generator IPG5000 (formerly named IPG1005) is the high voltage supply to the seismic borehole sources BIS-SH and SBS42. This generator is applicable for seismic tomography and crosshole tests in depths greater than 60 m. The energy is stored in a large capacitor bank, which discharges through a mechanical switch. The IPG5000 is controlled by a Remote Control Unit (RCU). The RCU ...